diff options
95 files changed, 2254 insertions, 999 deletions
diff --git a/Documentation/devicetree/bindings/clock/imx5-clock.txt b/Documentation/devicetree/bindings/clock/imx5-clock.txt index 2a0c904c46a..d71b4b2c077 100644 --- a/Documentation/devicetree/bindings/clock/imx5-clock.txt +++ b/Documentation/devicetree/bindings/clock/imx5-clock.txt @@ -38,7 +38,6 @@ clocks and IDs. usb_phy_podf 23 cpu_podf 24 di_pred 25 - tve_di 26 tve_s 27 uart1_ipg_gate 28 uart1_per_gate 29 @@ -172,6 +171,19 @@ clocks and IDs. can1_serial_gate 157 can1_ipg_gate 158 owire_gate 159 + gpu3d_s 160 + gpu2d_s 161 + gpu3d_gate 162 + gpu2d_gate 163 + garb_gate 164 + cko1_sel 165 + cko1_podf 166 + cko1 167 + cko2_sel 168 + cko2_podf 169 + cko2 170 + srtc_gate 171 + pata_gate 172 Examples (for mx53): diff --git a/Documentation/devicetree/bindings/clock/imx6q-clock.txt b/Documentation/devicetree/bindings/clock/imx6q-clock.txt index 969b38e06ad..6deb6fd1c7c 100644 --- a/Documentation/devicetree/bindings/clock/imx6q-clock.txt +++ b/Documentation/devicetree/bindings/clock/imx6q-clock.txt @@ -205,6 +205,9 @@ clocks and IDs. enet_ref 190 usbphy1_gate 191 usbphy2_gate 192 + pll4_post_div 193 + pll5_post_div 194 + pll5_video_div 195 Examples: diff --git a/Documentation/devicetree/bindings/reset/fsl,imx-src.txt b/Documentation/devicetree/bindings/reset/fsl,imx-src.txt new file mode 100644 index 00000000000..13301777e11 --- /dev/null +++ b/Documentation/devicetree/bindings/reset/fsl,imx-src.txt @@ -0,0 +1,49 @@ +Freescale i.MX System Reset Controller +====================================== + +Please also refer to reset.txt in this directory for common reset +controller binding usage. + +Required properties: +- compatible: Should be "fsl,<chip>-src" +- reg: should be register base and length as documented in the + datasheet +- interrupts: Should contain SRC interrupt and CPU WDOG interrupt, + in this order. +- #reset-cells: 1, see below + +example: + +src: src@020d8000 { + compatible = "fsl,imx6q-src"; + reg = <0x020d8000 0x4000>; + interrupts = <0 91 0x04 0 96 0x04>; + #reset-cells = <1>; +}; + +Specifying reset lines connected to IP modules +============================================== + +The system reset controller can be used to reset the GPU, VPU, +IPU, and OpenVG IP modules on i.MX5 and i.MX6 ICs. Those device +nodes should specify the reset line on the SRC in their resets +property, containing a phandle to the SRC device node and a +RESET_INDEX specifying which module to reset, as described in +reset.txt + +example: + + ipu1: ipu@02400000 { + resets = <&src 2>; + }; + ipu2: ipu@02800000 { + resets = <&src 4>; + }; + +The following RESET_INDEX values are valid for i.MX5: +GPU_RESET 0 +VPU_RESET 1 +IPU1_RESET 2 +OPEN_VG_RESET 3 +The following additional RESET_INDEX value is valid for i.MX6: +IPU2_RESET 4 diff --git a/Documentation/devicetree/bindings/staging/imx-drm/fsl-imx-drm.txt b/Documentation/devicetree/bindings/staging/imx-drm/fsl-imx-drm.txt index 8071ac20d4b..b876d4925a5 100644 --- a/Documentation/devicetree/bindings/staging/imx-drm/fsl-imx-drm.txt +++ b/Documentation/devicetree/bindings/staging/imx-drm/fsl-imx-drm.txt @@ -8,6 +8,8 @@ Required properties: - interrupts: Should contain sync interrupt and error interrupt, in this order. - #crtc-cells: 1, See below +- resets: phandle pointing to the system reset controller and + reset line index, see reset/fsl,imx-src.txt for details example: @@ -16,6 +18,7 @@ ipu: ipu@18000000 { compatible = "fsl,imx53-ipu"; reg = <0x18000000 0x080000000>; interrupts = <11 10>; + resets = <&src 2>; }; Parallel display support diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 5c56fa8824e..18bef301d6e 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -498,6 +498,7 @@ config ARCH_DOVE select PINCTRL_DOVE select PLAT_ORION_LEGACY select USB_ARCH_HAS_EHCI + select MVEBU_MBUS help Support for the Marvell Dove SoC 88AP510 @@ -511,6 +512,7 @@ config ARCH_KIRKWOOD select PINCTRL select PINCTRL_KIRKWOOD select PLAT_ORION_LEGACY + select MVEBU_MBUS help Support for the following Marvell Kirkwood series SoCs: 88F6180, 88F6192 and 88F6281. @@ -522,6 +524,7 @@ config ARCH_MV78XX0 select GENERIC_CLOCKEVENTS select PCI select PLAT_ORION_LEGACY + select MVEBU_MBUS help Support for the following Marvell MV78xx0 series SoCs: MV781x0, MV782x0. @@ -534,6 +537,7 @@ config ARCH_ORION5X select GENERIC_CLOCKEVENTS select PCI select PLAT_ORION_LEGACY + select MVEBU_MBUS help Support for the following Marvell Orion 5x series SoCs: Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182), diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index f57a6ba26e0..1d41908d5cd 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -245,11 +245,11 @@ choice on i.MX53. config DEBUG_IMX6Q_UART - bool "i.MX6Q Debug UART" + bool "i.MX6Q/DL Debug UART" depends on SOC_IMX6Q help Say Y here if you want kernel low-level debugging support - on i.MX6Q. + on i.MX6Q/DL. config DEBUG_MMP_UART2 bool "Kernel low-level debugging message via MMP UART2" diff --git a/arch/arm/boot/dts/armada-370-xp.dtsi b/arch/arm/boot/dts/armada-370-xp.dtsi index 758c4ea9034..9693f796bcf 100644 --- a/arch/arm/boot/dts/armada-370-xp.dtsi +++ b/arch/arm/boot/dts/armada-370-xp.dtsi @@ -73,11 +73,6 @@ clocks = <&coreclk 2>; }; - addr-decoding@d0020000 { - compatible = "marvell,armada-addr-decoding-controller"; - reg = <0xd0020000 0x258>; - }; - sata@d00a0000 { compatible = "marvell,orion-sata"; reg = <0xd00a0000 0x2400>; diff --git a/arch/arm/boot/dts/zynq-7000.dtsi b/arch/arm/boot/dts/zynq-7000.dtsi index 748fc347ed1..14fb2e609ba 100644 --- a/arch/arm/boot/dts/zynq-7000.dtsi +++ b/arch/arm/boot/dts/zynq-7000.dtsi @@ -136,5 +136,12 @@ clock-names = "cpu_1x"; clock-ranges; }; + scutimer: scutimer@f8f00600 { + interrupt-parent = <&intc>; + interrupts = < 1 13 0x301 >; + compatible = "arm,cortex-a9-twd-timer"; + reg = < 0xf8f00600 0x20 >; + clocks = <&cpu_clk 1>; + } ; }; }; diff --git a/arch/arm/configs/imx_v4_v5_defconfig b/arch/arm/configs/imx_v4_v5_defconfig index 02c657af400..f07a847b00c 100644 --- a/arch/arm/configs/imx_v4_v5_defconfig +++ b/arch/arm/configs/imx_v4_v5_defconfig @@ -109,6 +109,7 @@ CONFIG_I2C_IMX=y CONFIG_SPI=y CONFIG_SPI_IMX=y CONFIG_SPI_SPIDEV=y +CONFIG_GPIO_SYSFS=y CONFIG_W1=y CONFIG_W1_MASTER_MXC=y CONFIG_W1_SLAVE_THERM=y diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig index 088d6c11a0f..6ec010f248b 100644 --- a/arch/arm/configs/imx_v6_v7_defconfig +++ b/arch/arm/configs/imx_v6_v7_defconfig @@ -9,6 +9,7 @@ CONFIG_CGROUPS=y CONFIG_RELAY=y CONFIG_BLK_DEV_INITRD=y CONFIG_EXPERT=y +CONFIG_PERF_EVENTS=y # CONFIG_SLUB_DEBUG is not set # CONFIG_COMPAT_BRK is not set CONFIG_MODULES=y diff --git a/arch/arm/include/debug/mvebu.S b/arch/arm/include/debug/mvebu.S index 865c6d02b33..df191afa3be 100644 --- a/arch/arm/include/debug/mvebu.S +++ b/arch/arm/include/debug/mvebu.S @@ -12,7 +12,7 @@ */ #define ARMADA_370_XP_REGS_PHYS_BASE 0xd0000000 -#define ARMADA_370_XP_REGS_VIRT_BASE 0xfeb00000 +#define ARMADA_370_XP_REGS_VIRT_BASE 0xfec00000 .macro addruart, rp, rv, tmp ldr \rp, =ARMADA_370_XP_REGS_PHYS_BASE diff --git a/arch/arm/mach-dove/Makefile b/arch/arm/mach-dove/Makefile index 3f0a858fb59..4d9d2ffc453 100644 --- a/arch/arm/mach-dove/Makefile +++ b/arch/arm/mach-dove/Makefile @@ -1,4 +1,4 @@ -obj-y += common.o addr-map.o irq.o +obj-y += common.o irq.o obj-$(CONFIG_DOVE_LEGACY) += mpp.o obj-$(CONFIG_PCI) += pcie.o obj-$(CONFIG_MACH_DOVE_DB) += dove-db-setup.o diff --git a/arch/arm/mach-dove/addr-map.c b/arch/arm/mach-dove/addr-map.c deleted file mode 100644 index 2a06c016341..00000000000 --- a/arch/arm/mach-dove/addr-map.c +++ /dev/null @@ -1,125 +0,0 @@ -/* - * arch/arm/mach-dove/addr-map.c - * - * Address map functions for Marvell Dove 88AP510 SoC - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/mbus.h> -#include <linux/io.h> -#include <asm/mach/arch.h> -#include <asm/setup.h> -#include <mach/dove.h> -#include <plat/addr-map.h> -#include "common.h" - -/* - * Generic Address Decode Windows bit settings - */ -#define TARGET_DDR 0x0 -#define TARGET_BOOTROM 0x1 -#define TARGET_CESA 0x3 -#define TARGET_PCIE0 0x4 -#define TARGET_PCIE1 0x8 -#define TARGET_SCRATCHPAD 0xd - -#define ATTR_CESA 0x01 -#define ATTR_BOOTROM 0xfd -#define ATTR_DEV_SPI0_ROM 0xfe -#define ATTR_DEV_SPI1_ROM 0xfb -#define ATTR_PCIE_IO 0xe0 -#define ATTR_PCIE_MEM 0xe8 -#define ATTR_SCRATCHPAD 0x0 - -static inline void __iomem *ddr_map_sc(int i) -{ - return (void __iomem *)(DOVE_MC_VIRT_BASE + 0x100 + ((i) << 4)); -} - -/* - * Description of the windows needed by the platform code - */ -static struct __initdata orion_addr_map_cfg addr_map_cfg = { - .num_wins = 8, - .remappable_wins = 4, - .bridge_virt_base = BRIDGE_VIRT_BASE, -}; - -static const struct __initdata orion_addr_map_info addr_map_info[] = { - /* - * Windows for PCIe IO+MEM space. - */ - { 0, DOVE_PCIE0_IO_PHYS_BASE, DOVE_PCIE0_IO_SIZE, - TARGET_PCIE0, ATTR_PCIE_IO, DOVE_PCIE0_IO_BUS_BASE - }, - { 1, DOVE_PCIE1_IO_PHYS_BASE, DOVE_PCIE1_IO_SIZE, - TARGET_PCIE1, ATTR_PCIE_IO, DOVE_PCIE1_IO_BUS_BASE - }, - { 2, DOVE_PCIE0_MEM_PHYS_BASE, DOVE_PCIE0_MEM_SIZE, - TARGET_PCIE0, ATTR_PCIE_MEM, -1 - }, - { 3, DOVE_PCIE1_MEM_PHYS_BASE, DOVE_PCIE1_MEM_SIZE, - TARGET_PCIE1, ATTR_PCIE_MEM, -1 - }, - /* - * Window for CESA engine. - */ - { 4, DOVE_CESA_PHYS_BASE, DOVE_CESA_SIZE, - TARGET_CESA, ATTR_CESA, -1 - }, - /* - * Window to the BootROM for Standby and Sleep Resume - */ - { 5, DOVE_BOOTROM_PHYS_BASE, DOVE_BOOTROM_SIZE, - TARGET_BOOTROM, ATTR_BOOTROM, -1 - }, - /* - * Window to the PMU Scratch Pad space - */ - { 6, DOVE_SCRATCHPAD_PHYS_BASE, DOVE_SCRATCHPAD_SIZE, - TARGET_SCRATCHPAD, ATTR_SCRATCHPAD, -1 - }, - /* End marker */ - { -1, 0, 0, 0, 0, 0 } -}; - -void __init dove_setup_cpu_mbus(void) -{ - int i; - int cs; - - /* - * Disable, clear and configure windows. - */ - orion_config_wins(&addr_map_cfg, addr_map_info); - - /* - * Setup MBUS dram target info. - */ - orion_mbus_dram_info.mbus_dram_target_id = TARGET_DDR; - - for (i = 0, cs = 0; i < 2; i++) { - u32 map = readl(ddr_map_sc(i)); - - /* - * Chip select enabled? - */ - if (map & 1) { - struct mbus_dram_window *w; - - w = &orion_mbus_dram_info.cs[cs++]; - w->cs_index = i; - w->mbus_attr = 0; /* CS address decoding done inside */ - /* the DDR controller, no need to */ - /* provide attributes */ - w->base = map & 0xff800000; - w->size = 0x100000 << (((map & 0x000f0000) >> 16) - 4); - } - } - orion_mbus_dram_info.num_cs = cs; -} diff --git a/arch/arm/mach-dove/board-dt.c b/arch/arm/mach-dove/board-dt.c index fbde1dd6711..0b142803b2e 100644 --- a/arch/arm/mach-dove/board-dt.c +++ b/arch/arm/mach-dove/board-dt.c @@ -64,7 +64,7 @@ static void __init dove_dt_init(void) #ifdef CONFIG_CACHE_TAUROS2 tauros2_init(0); #endif - dove_setup_cpu_mbus(); + dove_setup_cpu_wins(); /* Setup root of clk tree */ dove_of_clk_init(); diff --git a/arch/arm/mach-dove/common.c b/arch/arm/mach-dove/common.c index c6b3b2bb50e..e2b5da031f9 100644 --- a/arch/arm/mach-dove/common.c +++ b/arch/arm/mach-dove/common.c @@ -224,6 +224,9 @@ void __init dove_i2c_init(void) void __init dove_init_early(void) { orion_time_set_base(TIMER_VIRT_BASE); + mvebu_mbus_init("marvell,dove-mbus", + BRIDGE_WINS_BASE, BRIDGE_WINS_SZ, + DOVE_MC_WINS_BASE, DOVE_MC_WINS_SZ); } static int __init dove_find_tclk(void) @@ -326,6 +329,40 @@ void __init dove_sdio1_init(void) platform_device_register(&dove_sdio1); } +void __init dove_setup_cpu_wins(void) +{ + /* + * The PCIe windows will no longer be statically allocated + * here once Dove is migrated to the pci-mvebu driver. + */ + mvebu_mbus_add_window_remap_flags("pcie0.0", + DOVE_PCIE0_IO_PHYS_BASE, + DOVE_PCIE0_IO_SIZE, + DOVE_PCIE0_IO_BUS_BASE, + MVEBU_MBUS_PCI_IO); + mvebu_mbus_add_window_remap_flags("pcie1.0", + DOVE_PCIE1_IO_PHYS_BASE, + DOVE_PCIE1_IO_SIZE, + DOVE_PCIE1_IO_BUS_BASE, + MVEBU_MBUS_PCI_IO); + mvebu_mbus_add_window_remap_flags("pcie0.0", + DOVE_PCIE0_MEM_PHYS_BASE, + DOVE_PCIE0_MEM_SIZE, + MVEBU_MBUS_NO_REMAP, + MVEBU_MBUS_PCI_MEM); + mvebu_mbus_add_window_remap_flags("pcie1.0", + DOVE_PCIE1_MEM_PHYS_BASE, + DOVE_PCIE1_MEM_SIZE, + MVEBU_MBUS_NO_REMAP, + MVEBU_MBUS_PCI_MEM); + mvebu_mbus_add_window("cesa", DOVE_CESA_PHYS_BASE, + DOVE_CESA_SIZE); + mvebu_mbus_add_window("bootrom", DOVE_BOOTROM_PHYS_BASE, + DOVE_BOOTROM_SIZE); + mvebu_mbus_add_window("scratchpad", DOVE_SCRATCHPAD_PHYS_BASE, + DOVE_SCRATCHPAD_SIZE); +} + void __init dove_init(void) { pr_info("Dove 88AP510 SoC, TCLK = %d MHz.\n", @@ -334,7 +371,7 @@ void __init dove_init(void) #ifdef CONFIG_CACHE_TAUROS2 tauros2_init(0); #endif - dove_setup_cpu_mbus(); + dove_setup_cpu_wins(); /* Setup root of clk tree */ dove_clk_init(); diff --git a/arch/arm/mach-dove/common.h b/arch/arm/mach-dove/common.h index ee59fba4c6d..e86347928b6 100644 --- a/arch/arm/mach-dove/common.h +++ b/arch/arm/mach-dove/common.h @@ -23,7 +23,7 @@ void dove_map_io(void); void dove_init(void); void dove_init_early(void); void dove_init_irq(void); -void dove_setup_cpu_mbus(void); +void dove_setup_cpu_wins(void); void dove_ge00_init(struct mv643xx_eth_platform_data *eth_data); void dove_sata_init(struct mv_sata_platform_data *sata_data); #ifdef CONFIG_PCI diff --git a/arch/arm/mach-dove/include/mach/dove.h b/arch/arm/mach-dove/include/mach/dove.h index 661725e3115..0c4b35f4ee5 100644 --- a/arch/arm/mach-dove/include/mach/dove.h +++ b/arch/arm/mach-dove/include/mach/dove.h @@ -77,6 +77,8 @@ /* North-South Bridge */ #define BRIDGE_VIRT_BASE (DOVE_SB_REGS_VIRT_BASE + 0x20000) #define BRIDGE_PHYS_BASE (DOVE_SB_REGS_PHYS_BASE + 0x20000) +#define BRIDGE_WINS_BASE (BRIDGE_PHYS_BASE) +#define BRIDGE_WINS_SZ (0x80) /* Cryptographic Engine */ #define DOVE_CRYPT_PHYS_BASE (DOVE_SB_REGS_PHYS_BASE + 0x30000) @@ -168,6 +170,9 @@ #define DOVE_SSP_CLOCK_ENABLE (1 << 1) #define DOVE_SSP_BPB_CLOCK_SRC_SSP (1 << 11) /* Memory Controller */ +#define DOVE_MC_PHYS_BASE (DOVE_NB_REGS_PHYS_BASE + 0x00000) +#define DOVE_MC_WINS_BASE (DOVE_MC_PHYS_BASE + 0x100) +#define DOVE_MC_WINS_SZ (0x8) #define DOVE_MC_VIRT_BASE (DOVE_NB_REGS_VIRT_BASE + 0x00000) /* LCD Controller */ diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig index 2ebc97e16b9..78f795d73cb 100644 --- a/arch/arm/mach-imx/Kconfig +++ b/arch/arm/mach-imx/Kconfig @@ -65,6 +65,9 @@ config IRAM_ALLOC bool select GENERIC_ALLOCATOR +config HAVE_IMX_ANATOP + bool + config HAVE_IMX_GPC bool @@ -73,6 +76,7 @@ config HAVE_IMX_MMDC config HAVE_IMX_SRC def_bool y if SMP + select ARCH_HAS_RESET_CONTROLLER config IMX_HAVE_IOMUX_V1 bool @@ -115,6 +119,8 @@ config SOC_IMX25 config SOC_IMX27 bool + select ARCH_HAS_CPUFREQ + select ARCH_HAS_OPP select COMMON_CLK select CPU_ARM926T select IMX_HAVE_IOMUX_V1 @@ -142,6 +148,7 @@ config SOC_IMX35 config SOC_IMX5 bool select ARCH_HAS_CPUFREQ + select ARCH_HAS_OPP select ARCH_MXC_IOMUX_V3 select COMMON_CLK select CPU_V7 @@ -783,7 +790,7 @@ config SOC_IMX53 This enables support for Freescale i.MX53 processor. config SOC_IMX6Q - bool "i.MX6 Quad support" + bool "i.MX6 Quad/DualLite support" select ARCH_HAS_CPUFREQ select ARCH_HAS_OPP select ARM_CPU_SUSPEND if PM @@ -796,6 +803,7 @@ config SOC_IMX6Q select HAVE_ARM_SCU if SMP select HAVE_ARM_TWD if LOCAL_TIMERS select HAVE_CAN_FLEXCAN if CAN + select HAVE_IMX_ANATOP select HAVE_IMX_GPC select HAVE_IMX_MMDC select HAVE_IMX_SRC diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile index fbe60a14534..930958973f8 100644 --- a/arch/arm/mach-imx/Makefile +++ b/arch/arm/mach-imx/Makefile @@ -91,6 +91,7 @@ obj-$(CONFIG_MACH_EUKREA_CPUIMX35SD) += mach-cpuimx35.o obj-$(CONFIG_MACH_EUKREA_MBIMXSD35_BASEBOARD) += eukrea_mbimxsd35-baseboard.o obj-$(CONFIG_MACH_VPR200) += mach-vpr200.o +obj-$(CONFIG_HAVE_IMX_ANATOP) += anatop.o obj-$(CONFIG_HAVE_IMX_GPC) += gpc.o obj-$(CONFIG_HAVE_IMX_MMDC) += mmdc.o obj-$(CONFIG_HAVE_IMX_SRC) += src.o diff --git a/arch/arm/mach-imx/anatop.c b/arch/arm/mach-imx/anatop.c new file mode 100644 index 00000000000..0cfa07dd9aa --- /dev/null +++ b/arch/arm/mach-imx/anatop.c @@ -0,0 +1,103 @@ +/* + * Copyright (C) 2013 Freescale Semiconductor, Inc. + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include <linux/err.h> +#include <linux/io.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/mfd/syscon.h> +#include <linux/regmap.h> +#include "common.h" + +#define REG_SET 0x4 +#define REG_CLR 0x8 + +#define ANADIG_REG_2P5 0x130 +#define ANADIG_REG_CORE 0x140 +#define ANADIG_ANA_MISC0 0x150 +#define ANADIG_USB1_CHRG_DETECT 0x1b0 +#define ANADIG_USB2_CHRG_DETECT 0x210 +#define ANADIG_DIGPROG 0x260 + +#define BM_ANADIG_REG_2P5_ENABLE_WEAK_LINREG 0x40000 +#define BM_ANADIG_REG_CORE_FET_ODRIVE 0x20000000 +#define BM_ANADIG_ANA_MISC0_STOP_MODE_CONFIG 0x1000 +#define BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B 0x80000 +#define BM_ANADIG_USB_CHRG_DETECT_EN_B 0x100000 + +static struct regmap *anatop; + +static void imx_anatop_enable_weak2p5(bool enable) +{ + u32 reg, val; + + regmap_read(anatop, ANADIG_ANA_MISC0, &val); + + /* can only be enabled when stop_mode_config is clear. */ + reg = ANADIG_REG_2P5; + reg += (enable && (val & BM_ANADIG_ANA_MISC0_STOP_MODE_CONFIG) == 0) ? + REG_SET : REG_CLR; + regmap_write(anatop, reg, BM_ANADIG_REG_2P5_ENABLE_WEAK_LINREG); +} + +static void imx_anatop_enable_fet_odrive(bool enable) +{ + regmap_write(anatop, ANADIG_REG_CORE + (enable ? REG_SET : REG_CLR), + BM_ANADIG_REG_CORE_FET_ODRIVE); +} + +void imx_anatop_pre_suspend(void) +{ + imx_anatop_enable_weak2p5(true); + imx_anatop_enable_fet_odrive(true); +} + +void imx_anatop_post_resume(void) +{ + imx_anatop_enable_fet_odrive(false); + imx_anatop_enable_weak2p5(false); +} + +void imx_anatop_usb_chrg_detect_disable(void) +{ + regmap_write(anatop, ANADIG_USB1_CHRG_DETECT, + BM_ANADIG_USB_CHRG_DETECT_EN_B + | BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B); + regmap_write(anatop, ANADIG_USB2_CHRG_DETECT, + BM_ANADIG_USB_CHRG_DETECT_EN_B | + BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B); +} + +u32 imx_anatop_get_digprog(void) +{ + struct device_node *np; + void __iomem *anatop_base; + static u32 digprog; + + if (digprog) + return digprog; + + np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-anatop"); + anatop_base = of_iomap(np, 0); + WARN_ON(!anatop_base); + digprog = readl_relaxed(anatop_base + ANADIG_DIGPROG); + + return digprog; +} + +void __init imx_anatop_init(void) +{ + anatop = syscon_regmap_lookup_by_compatible("fsl,imx6q-anatop"); + if (IS_ERR(anatop)) { + pr_err("%s: failed to find imx6q-anatop regmap!\n", __func__); + return; + } +} diff --git a/arch/arm/mach-imx/clk-imx51-imx53.c b/arch/arm/mach-imx/clk-imx51-imx53.c index 2bc623b414c..6fc486b6a3c 100644 --- a/arch/arm/mach-imx/clk-imx51-imx53.c +++ b/arch/arm/mach-imx/clk-imx51-imx53.c @@ -45,16 +45,40 @@ static const char *mx53_ipu_di1_sel[] = { "di_pred", "osc", "ckih1", "tve_di", " static const char *mx53_ldb_di1_sel[] = { "pll3_sw", "pll4_sw", }; static const char *mx51_tve_ext_sel[] = { "osc", "ckih1", }; static const char *mx53_tve_ext_sel[] = { "pll4_sw", "ckih1", }; -static const char *tve_sel[] = { "tve_pred", "tve_ext_sel", }; +static const char *mx51_tve_sel[] = { "tve_pred", "tve_ext_sel", }; static const char *ipu_sel[] = { "axi_a", "axi_b", "emi_slow_gate", "ahb", }; +static const char *gpu3d_sel[] = { "axi_a", "axi_b", "emi_slow_gate", "ahb" }; +static const char *gpu2d_sel[] = { "axi_a", "axi_b", "emi_slow_gate", "ahb" }; static const char *vpu_sel[] = { "axi_a", "axi_b", "emi_slow_gate", "ahb", }; static const char *mx53_can_sel[] = { "ipg", "ckih1", "ckih2", "lp_apm", }; +static const char *mx53_cko1_sel[] = { + "cpu_podf", "pll1_sw", "pll2_sw", "pll3_sw", + "emi_slow_podf", "pll4_sw", "nfc_podf", "dummy", + "di_pred", "dummy", "dummy", "ahb", + "ipg", "per_root", "ckil", "dummy",}; +static const char *mx53_cko2_sel[] = { + "dummy"/* dptc_core */, "dummy"/* dptc_perich */, + "dummy", "esdhc_a_podf", + "usboh3_podf", "dummy"/* wrck_clk_root */, + "ecspi_podf", "dummy"/* pll1_ref_clk */, + "esdhc_b_podf", "dummy"/* ddr_clk_root */, + "dummy"/* arm_axi_clk_root */, "dummy"/* usb_phy_out */, + "vpu_sel", "ipu_sel", + "osc", "ckih1", + "dummy", "esdhc_c_sel", + "ssi1_root_podf", "ssi2_root_podf", + "dummy", "dummy", + "dummy"/* lpsr_clk_root */, "dummy"/* pgc_clk_root */, + "dummy"/* tve_out */, "usb_phy_sel", + "tve_sel", "lp_apm", + "uart_root", "dummy"/* spdif0_clk_root */, + "dummy", "dummy", }; enum imx5_clks { dummy, ckil, osc, ckih1, ckih2, ahb, ipg, axi_a, axi_b, uart_pred, uart_root, esdhc_a_pred, esdhc_b_pred, esdhc_c_s, esdhc_d_s, emi_sel, emi_slow_podf, nfc_podf, ecspi_pred, ecspi_podf, usboh3_pred, - usboh3_podf, usb_phy_pred, usb_phy_podf, cpu_podf, di_pred, tve_di, + usboh3_podf, usb_phy_pred, usb_phy_podf, cpu_podf, di_pred, tve_di_unused, tve_s, uart1_ipg_gate, uart1_per_gate, uart2_ipg_gate, uart2_per_gate, uart3_ipg_gate, uart3_per_gate, i2c1_gate, i2c2_gate, gpt_ipg_gate, pwm1_ipg_gate, pwm1_hf_gate, pwm2_ipg_gate, pwm2_hf_gate, @@ -83,7 +107,10 @@ enum imx5_clks { ssi2_root_gate, ssi3_root_gate, ssi_ext1_gate, ssi_ext2_gate, epit1_ipg_gate, epit1_hf_gate, epit2_ipg_gate, epit2_hf_gate, can_sel, can1_serial_gate, can1_ipg_gate, - owire_gate, + owire_gate, gpu3d_s, gpu2d_s, gpu3d_gate, gpu2d_gate, garb_gate, + cko1_sel, cko1_podf, cko1, + cko2_sel, cko2_podf, cko2, + srtc_gate, pata_gate, clk_max }; @@ -160,8 +187,6 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil, usb_phy_sel_str, ARRAY_SIZE(usb_phy_sel_str)); clk[cpu_podf] = imx_clk_divider("cpu_podf", "pll1_sw", MXC_CCM_CACRR, 0, 3); clk[di_pred] = imx_clk_divider("di_pred", "pll3_sw", MXC_CCM_CDCDR, 6, 3); - clk[tve_di] = imx_clk_fixed("tve_di", 65000000); /* FIXME */ - clk[tve_s] = imx_clk_mux("tve_sel", MXC_CCM_CSCMR1, 7, 1, tve_sel, ARRAY_SIZE(tve_sel)); clk[iim_gate] = imx_clk_gate2("iim_gate", "ipg", MXC_CCM_CCGR0, 30); clk[uart1_ipg_gate] = imx_clk_gate2("uart1_ipg_gate", "ipg", MXC_CCM_CCGR1, 6); clk[uart1_per_gate] = imx_clk_gate2("uart1_per_gate", "uart_root", MXC_CCM_CCGR1, 8); @@ -200,6 +225,11 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil, clk[nfc_gate] = imx_clk_gate2("nfc_gate", "nfc_podf", MXC_CCM_CCGR5, 20); clk[ipu_di0_gate] = imx_clk_gate2("ipu_di0_gate", "ipu_di0_sel", MXC_CCM_CCGR6, 10); clk[ipu_di1_gate] = imx_clk_gate2("ipu_di1_gate", "ipu_di1_sel", MXC_CCM_CCGR6, 12); + clk[gpu3d_s] = imx_clk_mux("gpu3d_sel", MXC_CCM_CBCMR, 4, 2, gpu3d_sel, ARRAY_SIZE(gpu3d_sel)); + clk[gpu2d_s] = imx_clk_mux("gpu2d_sel", MXC_CCM_CBCMR, 16, 2, gpu2d_sel, ARRAY_SIZE(gpu2d_sel)); + clk[gpu3d_gate] = imx_clk_gate2("gpu3d_gate", "gpu3d_sel", MXC_CCM_CCGR5, 2); + clk[garb_gate] = imx_clk_gate2("garb_gate", "axi_a", MXC_CCM_CCGR5, 4); + clk[gpu2d_gate] = imx_clk_gate2("gpu2d_gate", "gpu2d_sel", MXC_CCM_CCGR6, 14); clk[vpu_s] = imx_clk_mux("vpu_sel", MXC_CCM_CBCMR, 14, 2, vpu_sel, ARRAY_SIZE(vpu_sel)); clk[vpu_gate] = imx_clk_gate2("vpu_gate", "vpu_sel", MXC_CCM_CCGR5, 6); clk[vpu_reference_gate] = imx_clk_gate2("vpu_reference_gate", "osc", MXC_CCM_CCGR5, 8); @@ -235,6 +265,8 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil, clk[epit2_ipg_gate] = imx_clk_gate2("epit2_ipg_gate", "ipg", MXC_CCM_CCGR2, 6); clk[epit2_hf_gate] = imx_clk_gate2("epit2_hf_gate", "per_root", MXC_CCM_CCGR2, 8); clk[owire_gate] = imx_clk_gate2("owire_gate", "per_root", MXC_CCM_CCGR2, 22); + clk[srtc_gate] = imx_clk_gate2("srtc_gate", "per_root", MXC_CCM_CCGR4, 28); + clk[pata_gate] = imx_clk_gate2("pata_gate", "ipg", MXC_CCM_CCGR4, 0); for (i = 0; i < ARRAY_SIZE(clk); i++) if (IS_ERR(clk[i])) @@ -286,7 +318,6 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil, clk_register_clkdev(clk[dummy], NULL, "imx2-wdt.0"); clk_register_clkdev(clk[dummy], NULL, "imx2-wdt.1"); clk_register_clkdev(clk[dummy], NULL, "imx-keypad"); - clk_register_clkdev(clk[tve_gate], NULL, "imx-tve.0"); clk_register_clkdev(clk[ipu_di1_gate], "di1", "imx-tve.0"); clk_register_clkdev(clk[gpc_dvfs], "gpc_dvfs", NULL); clk_register_clkdev(clk[epit1_ipg_gate], "ipg", "imx-epit.0"); @@ -331,8 +362,10 @@ int __init mx51_clocks_init(unsigned long rate_ckil, unsigned long rate_osc, mx51_ipu_di0_sel, ARRAY_SIZE(mx51_ipu_di0_sel)); clk[ipu_di1_sel] = imx_clk_mux("ipu_di1_sel", MXC_CCM_CSCMR2, 29, 3, mx51_ipu_di1_sel, ARRAY_SIZE(mx51_ipu_di1_sel)); - clk[tve_ext_sel] = imx_clk_mux("tve_ext_sel", MXC_CCM_CSCMR1, 6, 1, - mx51_tve_ext_sel, ARRAY_SIZE(mx51_tve_ext_sel)); + clk[tve_ext_sel] = imx_clk_mux_flags("tve_ext_sel", MXC_CCM_CSCMR1, 6, 1, + mx51_tve_ext_sel, ARRAY_SIZE(mx51_tve_ext_sel), CLK_SET_RATE_PARENT); + clk[tve_s] = imx_clk_mux("tve_sel", MXC_CCM_CSCMR1, 7, 1, + mx51_tve_sel, ARRAY_SIZE(mx51_tve_sel)); clk[tve_gate] = imx_clk_gate2("tve_gate", "tve_sel", MXC_CCM_CCGR2, 30); clk[tve_pred] = imx_clk_divider("tve_pred", "pll3_sw", MXC_CCM_CDCDR, 28, 3); clk[esdhc1_per_gate] = imx_clk_gate2("esdhc1_per_gate", "esdhc_a_podf", MXC_CCM_CCGR3, 2); @@ -420,23 +453,23 @@ int __init mx53_clocks_init(unsigned long rate_ckil, unsigned long rate_osc, clk[pll3_sw] = imx_clk_pllv2("pll3_sw", "osc", MX53_DPLL3_BASE); clk[pll4_sw] = imx_clk_pllv2("pll4_sw", "osc", MX53_DPLL4_BASE); - clk[ldb_di1_sel] = imx_clk_mux("ldb_di1_sel", MXC_CCM_CSCMR2, 9, 1, - mx53_ldb_di1_sel, ARRAY_SIZE(mx53_ldb_di1_sel)); clk[ldb_di1_div_3_5] = imx_clk_fixed_factor("ldb_di1_div_3_5", "ldb_di1_sel", 2, 7); - clk[ldb_di1_div] = imx_clk_divider("ldb_di1_div", "ldb_di1_div_3_5", MXC_CCM_CSCMR2, 11, 1); + clk[ldb_di1_div] = imx_clk_divider_flags("ldb_di1_div", "ldb_di1_div_3_5", MXC_CCM_CSCMR2, 11, 1, 0); + clk[ldb_di1_sel] = imx_clk_mux_flags("ldb_di1_sel", MXC_CCM_CSCMR2, 9, 1, + mx53_ldb_di1_sel, ARRAY_SIZE(mx53_ldb_di1_sel), CLK_SET_RATE_PARENT); clk[di_pll4_podf] = imx_clk_divider("di_pll4_podf", "pll4_sw", MXC_CCM_CDCDR, 16, 3); - clk[ldb_di0_sel] = imx_clk_mux("ldb_di0_sel", MXC_CCM_CSCMR2, 8, 1, - mx53_ldb_di0_sel, ARRAY_SIZE(mx53_ldb_di0_sel)); clk[ldb_di0_div_3_5] = imx_clk_fixed_factor("ldb_di0_div_3_5", "ldb_di0_sel", 2, 7); - clk[ldb_di0_div] = imx_clk_divider("ldb_di0_div", "ldb_di0_div_3_5", MXC_CCM_CSCMR2, 10, 1); + clk[ldb_di0_div] = imx_clk_divider_flags("ldb_di0_div", "ldb_di0_div_3_5", MXC_CCM_CSCMR2, 10, 1, 0); + clk[ldb_di0_sel] = imx_clk_mux_flags("ldb_di0_sel", MXC_CCM_CSCMR2, 8, 1, + mx53_ldb_di0_sel, ARRAY_SIZE(mx53_ldb_di0_sel), CLK_SET_RATE_PARENT); clk[ldb_di0_gate] = imx_clk_gate2("ldb_di0_gate", "ldb_di0_div", MXC_CCM_CCGR6, 28); clk[ldb_di1_gate] = imx_clk_gate2("ldb_di1_gate", "ldb_di1_div", MXC_CCM_CCGR6, 30); clk[ipu_di0_sel] = imx_clk_mux("ipu_di0_sel", MXC_CCM_CSCMR2, 26, 3, mx53_ipu_di0_sel, ARRAY_SIZE(mx53_ipu_di0_sel)); clk[ipu_di1_sel] = imx_clk_mux("ipu_di1_sel", MXC_CCM_CSCMR2, 29, 3, mx53_ipu_di1_sel, ARRAY_SIZE(mx53_ipu_di1_sel)); - clk[tve_ext_sel] = imx_clk_mux("tve_ext_sel", MXC_CCM_CSCMR1, 6, 1, - mx53_tve_ext_sel, ARRAY_SIZE(mx53_tve_ext_sel)); + clk[tve_ext_sel] = imx_clk_mux_flags("tve_ext_sel", MXC_CCM_CSCMR1, 6, 1, + mx53_tve_ext_sel, ARRAY_SIZE(mx53_tve_ext_sel), CLK_SET_RATE_PARENT); clk[tve_gate] = imx_clk_gate2("tve_gate", "tve_pred", MXC_CCM_CCGR2, 30); clk[tve_pred] = imx_clk_divider("tve_pred", "tve_ext_sel", MXC_CCM_CDCDR, 28, 3); clk[esdhc1_per_gate] = imx_clk_gate2("esdhc1_per_gate", "esdhc_a_podf", MXC_CCM_CCGR3, 2); @@ -453,6 +486,16 @@ int __init mx53_clocks_init(unsigned long rate_ckil, unsigned long rate_osc, clk[can2_ipg_gate] = imx_clk_gate2("can2_ipg_gate", "ipg", MXC_CCM_CCGR4, 6); clk[i2c3_gate] = imx_clk_gate2("i2c3_gate", "per_root", MXC_CCM_CCGR1, 22); + clk[cko1_sel] = imx_clk_mux("cko1_sel", MXC_CCM_CCOSR, 0, 4, + mx53_cko1_sel, ARRAY_SIZE(mx53_cko1_sel)); + clk[cko1_podf] = imx_clk_divider("cko1_podf", "cko1_sel", MXC_CCM_CCOSR, 4, 3); + clk[cko1] = imx_clk_gate2("cko1", "cko1_podf", MXC_CCM_CCOSR, 7); + + clk[cko2_sel] = imx_clk_mux("cko2_sel", MXC_CCM_CCOSR, 16, 5, + mx53_cko2_sel, ARRAY_SIZE(mx53_cko2_sel)); + clk[cko2_podf] = imx_clk_divider("cko2_podf", "cko2_sel", MXC_CCM_CCOSR, 21, 3); + clk[cko2] = imx_clk_gate2("cko2", "cko2_podf", MXC_CCM_CCOSR, 24); + for (i = 0; i < ARRAY_SIZE(clk); i++) if (IS_ERR(clk[i])) pr_err("i.MX53 clk %d: register failed with %ld\n", diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c index d38e54f5b6d..15125900308 100644 --- a/arch/arm/mach-imx/clk-imx6q.c +++ b/arch/arm/mach-imx/clk-imx6q.c @@ -1,5 +1,5 @@ /* - * Copyright 2011 Freescale Semiconductor, Inc. + * Copyright 2011-2013 Freescale Semiconductor, Inc. * Copyright 2011 Linaro Ltd. * * The code contained herein is licensed under the GNU General Public @@ -14,6 +14,7 @@ #include <linux/types.h> #include <linux/clk.h> #include <linux/clkdev.h> +#include <linux/delay.h> #include <linux/err.h> #include <linux/io.h> #include <linux/of.h> @@ -22,6 +23,12 @@ #include "clk.h" #include "common.h" +#include "hardware.h" + +#define CCR 0x0 +#define BM_CCR_WB_COUNT (0x7 << 16) +#define BM_CCR_RBC_BYPASS_COUNT (0x3f << 21) +#define BM_CCR_RBC_EN (0x1 << 27) #define CCGR0 0x68 #define CCGR1 0x6c @@ -67,6 +74,67 @@ void imx6q_set_chicken_bit(void) writel_relaxed(val, ccm_base + CGPR); } +static void imx6q_enable_rbc(bool enable) +{ + u32 val; + static bool last_rbc_mode; + + if (last_rbc_mode == enable) + return; + /* + * need to mask all interrupts in GPC before + * operating RBC configurations + */ + imx_gpc_mask_all(); + + /* configure RBC enable bit */ + val = readl_relaxed(ccm_base + CCR); + val &= ~BM_CCR_RBC_EN; + val |= enable ? BM_CCR_RBC_EN : 0; + writel_relaxed(val, ccm_base + CCR); + + /* configure RBC count */ + val = readl_relaxed(ccm_base + CCR); + val &= ~BM_CCR_RBC_BYPASS_COUNT; + val |= enable ? BM_CCR_RBC_BYPASS_COUNT : 0; + writel(val, ccm_base + CCR); + + /* + * need to delay at least 2 cycles of CKIL(32K) + * due to hardware design requirement, which is + * ~61us, here we use 65us for safe + */ + udelay(65); + + /* restore GPC interrupt mask settings */ + imx_gpc_restore_all(); + + last_rbc_mode = enable; +} + +static void imx6q_enable_wb(bool enable) +{ + u32 val; + static bool last_wb_mode; + + if (last_wb_mode == enable) + return; + + /* configure well bias enable bit */ + val = readl_relaxed(ccm_base + CLPCR); + val &= ~BM_CLPCR_WB_PER_AT_LPM; + val |= enable ? BM_CLPCR_WB_PER_AT_LPM : 0; + writel_relaxed(val, ccm_base + CLPCR); + + /* configure well bias count */ + val = readl_relaxed(ccm_base + CCR); + val &= ~BM_CCR_WB_COUNT; + val |= enable ? BM_CCR_WB_COUNT : 0; + writel_relaxed(val, ccm_base + CCR); + + last_wb_mode = enable; +} + int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode) { u32 val = readl_relaxed(ccm_base + CLPCR); @@ -74,6 +142,8 @@ int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode) val &= ~BM_CLPCR_LPM; switch (mode) { case WAIT_CLOCKED: + imx6q_enable_wb(false); + imx6q_enable_rbc(false); break; case WAIT_UNCLOCKED: val |= 0x1 << BP_CLPCR_LPM; @@ -92,6 +162,8 @@ int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode) val |= 0x3 << BP_CLPCR_STBY_COUNT; val |= BM_CLPCR_VSTBY; val |= BM_CLPCR_SBYOS; + imx6q_enable_wb(true); + imx6q_enable_rbc(true); break; default: return -EINVAL; @@ -109,29 +181,29 @@ static const char *periph_clk2_sels[] = { "pll3_usb_otg", "osc", }; static const char *periph_sels[] = { "periph_pre", "periph_clk2", }; static const char *periph2_sels[] = { "periph2_pre", "periph2_clk2", }; static const char *axi_sels[] = { "periph", "pll2_pfd2_396m", "pll3_pfd1_540m", }; -static const char *audio_sels[] = { "pll4_audio", "pll3_pfd2_508m", "pll3_pfd3_454m", "pll3_usb_otg", }; +static const char *audio_sels[] = { "pll4_post_div", "pll3_pfd2_508m", "pll3_pfd3_454m", "pll3_usb_otg", }; static const char *gpu_axi_sels[] = { "axi", "ahb", }; static const char *gpu2d_core_sels[] = { "axi", "pll3_usb_otg", "pll2_pfd0_352m", "pll2_pfd2_396m", }; static const char *gpu3d_core_sels[] = { "mmdc_ch0_axi", "pll3_usb_otg", "pll2_pfd1_594m", "pll2_pfd2_396m", }; static const char *gpu3d_shader_sels[] = { "mmdc_ch0_axi", "pll3_usb_otg", "pll2_pfd1_594m", "pll2_pfd9_720m", }; static const char *ipu_sels[] = { "mmdc_ch0_axi", "pll2_pfd2_396m", "pll3_120m", "pll3_pfd1_540m", }; static const char *ldb_di_sels[] = { "pll5_video", "pll2_pfd0_352m", "pll2_pfd2_396m", "mmdc_ch1_axi", "pll3_usb_otg", }; -static const char *ipu_di_pre_sels[] = { "mmdc_ch0_axi", "pll3_usb_otg", "pll5_video", "pll2_pfd0_352m", "pll2_pfd2_396m", "pll3_pfd1_540m", }; +static const char *ipu_di_pre_sels[] = { "mmdc_ch0_axi", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0_352m", "pll2_pfd2_396m", "pll3_pfd1_540m", }; static const char *ipu1_di0_sels[] = { "ipu1_di0_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", }; static const char *ipu1_di1_sels[] = { "ipu1_di1_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", }; static const char *ipu2_di0_sels[] = { "ipu2_di0_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", }; static const char *ipu2_di1_sels[] = { "ipu2_di1_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", }; static const char *hsi_tx_sels[] = { "pll3_120m", "pll2_pfd2_396m", }; static const char *pcie_axi_sels[] = { "axi", "ahb", }; -static const char *ssi_sels[] = { "pll3_pfd2_508m", "pll3_pfd3_454m", "pll4_audio", }; +static const char *ssi_sels[] = { "pll3_pfd2_508m", "pll3_pfd3_454m", "pll4_post_div", }; static const char *usdhc_sels[] = { "pll2_pfd2_396m", "pll2_pfd0_352m", }; static const char *enfc_sels[] = { "pll2_pfd0_352m", "pll2_bus", "pll3_usb_otg", "pll2_pfd2_396m", }; static const char *emi_sels[] = { "axi", "pll3_usb_otg", "pll2_pfd2_396m", "pll2_pfd0_352m", }; static const char *vdo_axi_sels[] = { "axi", "ahb", }; static const char *vpu_axi_sels[] = { "axi", "pll2_pfd2_396m", "pll2_pfd0_352m", }; -static const char *cko1_sels[] = { "pll3_usb_otg", "pll2_bus", "pll1_sys", "pll5_video", +static const char *cko1_sels[] = { "pll3_usb_otg", "pll2_bus", "pll1_sys", "pll5_video_div", "dummy", "axi", "enfc", "ipu1_di0", "ipu1_di1", "ipu2_di0", - "ipu2_di1", "ahb", "ipg", "ipg_per", "ckil", "pll4_audio", }; + "ipu2_di1", "ahb", "ipg", "ipg_per", "ckil", "pll4_post_div", }; enum mx6q_clks { dummy, ckil, ckih, osc, pll2_pfd0_352m, pll2_pfd1_594m, pll2_pfd2_396m, @@ -165,7 +237,7 @@ enum mx6q_clks { pll4_audio, pll5_video, pll8_mlb, pll7_usb_host, pll6_enet, ssi1_ipg, ssi2_ipg, ssi3_ipg, rom, usbphy1, usbphy2, ldb_di0_div_3_5, ldb_di1_div_3_5, sata_ref, sata_ref_100m, pcie_ref, pcie_ref_125m, enet_ref, usbphy1_gate, - usbphy2_gate, clk_max + usbphy2_gate, pll4_post_div, pll5_post_div, pll5_video_div, clk_max }; static struct clk *clk[clk_max]; @@ -182,6 +254,21 @@ static struct clk_div_table clk_enet_ref_table[] = { { .val = 3, .div = 4, }, }; +static struct clk_div_table post_div_table[] = { + { .val = 2, .div = 1, }, + { .val = 1, .div = 2, }, + { .val = 0, .div = 4, }, + { } +}; + +static struct clk_div_table video_div_table[] = { + { .val = 0, .div = 1, }, + { .val = 1, .div = 2, }, + { .val = 2, .div = 1, }, + { .val = 3, .div = 4, }, + { } +}; + int __init mx6q_clocks_init(void) { struct device_node *np; @@ -208,6 +295,14 @@ int __init mx6q_clocks_init(void) base = of_iomap(np, 0); WARN_ON(!base); + /* Audio/video PLL post dividers do not work on i.MX6q revision 1.0 */ + if (cpu_is_imx6q() && imx6q_revision() == IMX_CHIP_REVISION_1_0) { + post_div_table[1].div = 1; + post_div_table[2].div = 1; + video_div_table[1].div = 1; + video_div_table[2].div = 1; + }; + /* type name parent_name base div_mask */ clk[pll1_sys] = imx_clk_pllv3(IMX_PLLV3_SYS, "pll1_sys", "osc", base, 0x7f); clk[pll2_bus] = imx_clk_pllv3(IMX_PLLV3_GENERIC, "pll2_bus", "osc", base + 0x30, 0x1); @@ -260,6 +355,10 @@ int __init mx6q_clocks_init(void) clk[pll3_60m] = imx_clk_fixed_factor("pll3_60m", "pll3_usb_otg", 1, 8); clk[twd] = imx_clk_fixed_factor("twd", "arm", 1, 2); + clk[pll4_post_div] = clk_register_divider_table(NULL, "pll4_post_div", "pll4_audio", CLK_SET_RATE_PARENT, base + 0x70, 19, 2, 0, post_div_table, &imx_ccm_lock); + clk[pll5_post_div] = clk_register_divider_table(NULL, "pll5_post_div", "pll5_video", CLK_SET_RATE_PARENT, base + 0xa0, 19, 2, 0, post_div_table, &imx_ccm_lock); + clk[pll5_video_div] = clk_register_divider_table(NULL, "pll5_video_div", "pll5_post_div", CLK_SET_RATE_PARENT, base + 0x170, 30, 2, 0, video_div_table, &imx_ccm_lock); + np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-ccm"); base = of_iomap(np, 0); WARN_ON(!base); @@ -283,8 +382,8 @@ int __init mx6q_clocks_init(void) clk[gpu3d_shader_sel] = imx_clk_mux("gpu3d_shader_sel", base + 0x18, 8, 2, gpu3d_shader_sels, ARRAY_SIZE(gpu3d_shader_sels)); clk[ipu1_sel] = imx_clk_mux("ipu1_sel", base + 0x3c, 9, 2, ipu_sels, ARRAY_SIZE(ipu_sels)); clk[ipu2_sel] = imx_clk_mux("ipu2_sel", base + 0x3c, 14, 2, ipu_sels, ARRAY_SIZE(ipu_sels)); - clk[ldb_di0_sel] = imx_clk_mux("ldb_di0_sel", base + 0x2c, 9, 3, ldb_di_sels, ARRAY_SIZE(ldb_di_sels)); - clk[ldb_di1_sel] = imx_clk_mux("ldb_di1_sel", base + 0x2c, 12, 3, ldb_di_sels, ARRAY_SIZE(ldb_di_sels)); + clk[ldb_di0_sel] = imx_clk_mux_flags("ldb_di0_sel", base + 0x2c, 9, 3, ldb_di_sels, ARRAY_SIZE(ldb_di_sels), CLK_SET_RATE_PARENT); + clk[ldb_di1_sel] = imx_clk_mux_flags("ldb_di1_sel", base + 0x2c, 12, 3, ldb_di_sels, ARRAY_SIZE(ldb_di_sels), CLK_SET_RATE_PARENT); clk[ipu1_di0_pre_sel] = imx_clk_mux("ipu1_di0_pre_sel", base + 0x34, 6, 3, ipu_di_pre_sels, ARRAY_SIZE(ipu_di_pre_sels)); clk[ipu1_di1_pre_sel] = imx_clk_mux("ipu1_di1_pre_sel", base + 0x34, 15, 3, ipu_di_pre_sels, ARRAY_SIZE(ipu_di_pre_sels)); clk[ipu2_di0_pre_sel] = imx_clk_mux("ipu2_di0_pre_sel", base + 0x38, 6, 3, ipu_di_pre_sels, ARRAY_SIZE(ipu_di_pre_sels)); @@ -332,9 +431,9 @@ int __init mx6q_clocks_init(void) clk[ipu1_podf] = imx_clk_divider("ipu1_podf", "ipu1_sel", base + 0x3c, 11, 3); clk[ipu2_podf] = imx_clk_divider("ipu2_podf", "ipu2_sel", base + 0x3c, 16, 3); clk[ldb_di0_div_3_5] = imx_clk_fixed_factor("ldb_di0_div_3_5", "ldb_di0_sel", 2, 7); - clk[ldb_di0_podf] = imx_clk_divider("ldb_di0_podf", "ldb_di0_div_3_5", base + 0x20, 10, 1); + clk[ldb_di0_podf] = imx_clk_divider_flags("ldb_di0_podf", "ldb_di0_div_3_5", base + 0x20, 10, 1, 0); clk[ldb_di1_div_3_5] = imx_clk_fixed_factor("ldb_di1_div_3_5", "ldb_di1_sel", 2, 7); - clk[ldb_di1_podf] = imx_clk_divider("ldb_di1_podf", "ldb_di1_div_3_5", base + 0x20, 11, 1); + clk[ldb_di1_podf] = imx_clk_divider_flags("ldb_di1_podf", "ldb_di1_div_3_5", base + 0x20, 11, 1, 0); clk[ipu1_di0_pre] = imx_clk_divider("ipu1_di0_pre", "ipu1_di0_pre_sel", base + 0x34, 3, 3); clk[ipu1_di1_pre] = imx_clk_divider("ipu1_di1_pre", "ipu1_di1_pre_sel", base + 0x34, 12, 3); clk[ipu2_di0_pre] = imx_clk_divider("ipu2_di0_pre", "ipu2_di0_pre_sel", base + 0x38, 3, 3); @@ -448,6 +547,11 @@ int __init mx6q_clocks_init(void) clk_register_clkdev(clk[cko1], "cko1", NULL); clk_register_clkdev(clk[arm], NULL, "cpu0"); + if (imx6q_revision() != IMX_CHIP_REVISION_1_0) { + clk_set_parent(clk[ldb_di0_sel], clk[pll5_video_div]); + clk_set_parent(clk[ldb_di1_sel], clk[pll5_video_div]); + } + /* * The gpmi needs 100MHz frequency in the EDO/Sync mode, * We can not get the 100MHz from the pll2_pfd0_352m. diff --git a/arch/arm/mach-imx/clk.h b/arch/arm/mach-imx/clk.h index 9d1f3b99d1d..d9d9d9c66df 100644 --- a/arch/arm/mach-imx/clk.h +++ b/arch/arm/mach-imx/clk.h @@ -59,6 +59,14 @@ static inline struct clk *imx_clk_divider(const char *name, const char *parent, reg, shift, width, 0, &imx_ccm_lock); } +static inline struct clk *imx_clk_divider_flags(const char *name, + const char *parent, void __iomem *reg, u8 shift, u8 width, + unsigned long flags) +{ + return clk_register_divider(NULL, name, parent, flags, + reg, shift, width, 0, &imx_ccm_lock); +} + static inline struct clk *imx_clk_gate(const char *name, const char *parent, void __iomem *reg, u8 shift) { @@ -73,6 +81,15 @@ static inline struct clk *imx_clk_mux(const char *name, void __iomem *reg, width, 0, &imx_ccm_lock); } +static inline struct clk *imx_clk_mux_flags(const char *name, + void __iomem *reg, u8 shift, u8 width, const char **parents, + int num_parents, unsigned long flags) +{ + return clk_register_mux(NULL, name, parents, num_parents, + flags, reg, shift, width, 0, + &imx_ccm_lock); +} + static inline struct clk *imx_clk_fixed_factor(const char *name, const char *parent, unsigned int mult, unsigned int div) { diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h index 9fea2522d7a..4cba7dbb079 100644 --- a/arch/arm/mach-imx/common.h +++ b/arch/arm/mach-imx/common.h @@ -1,5 +1,5 @@ /* - * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright 2004-2013 Freescale Semiconductor, Inc. All Rights Reserved. */ /* @@ -74,6 +74,7 @@ extern void mxc_set_cpu_type(unsigned int type); extern void mxc_restart(char, const char *); extern void mxc_arch_reset_init(void __iomem *); extern int mx53_revision(void); +extern int imx6q_revision(void); extern int mx53_display_revision(void); extern void imx_set_aips(void __iomem *); extern int mxc_device_init(void); @@ -128,6 +129,13 @@ extern void imx_src_prepare_restart(void); extern void imx_gpc_init(void); extern void imx_gpc_pre_suspend(void); extern void imx_gpc_post_resume(void); +extern void imx_gpc_mask_all(void); +extern void imx_gpc_restore_all(void); +extern void imx_anatop_init(void); +extern void imx_anatop_pre_suspend(void); +extern void imx_anatop_post_resume(void); +extern void imx_anatop_usb_chrg_detect_disable(void); +extern u32 imx_anatop_get_digprog(void); extern int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode); extern void imx6q_set_chicken_bit(void); diff --git a/arch/arm/mach-imx/gpc.c b/arch/arm/mach-imx/gpc.c index 02b61cdf39b..44a65e9ff1f 100644 --- a/arch/arm/mach-imx/gpc.c +++ b/arch/arm/mach-imx/gpc.c @@ -1,5 +1,5 @@ /* - * Copyright 2011 Freescale Semiconductor, Inc. + * Copyright 2011-2013 Freescale Semiconductor, Inc. * Copyright 2011 Linaro Ltd. * * The code contained herein is licensed under the GNU General Public @@ -69,6 +69,27 @@ static int imx_gpc_irq_set_wake(struct irq_data *d, unsigned int on) return 0; } +void imx_gpc_mask_all(void) +{ + void __iomem *reg_imr1 = gpc_base + GPC_IMR1; + int i; + + for (i = 0; i < IMR_NUM; i++) { + gpc_saved_imrs[i] = readl_relaxed(reg_imr1 + i * 4); + writel_relaxed(~0, reg_imr1 + i * 4); + } + +} + +void imx_gpc_restore_all(void) +{ + void __iomem *reg_imr1 = gpc_base + GPC_IMR1; + int i; + + for (i = 0; i < IMR_NUM; i++) + writel_relaxed(gpc_saved_imrs[i], reg_imr1 + i * 4); +} + static void imx_gpc_irq_unmask(struct irq_data *d) { void __iomem *reg; diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c index 99502eeefdf..5536fd81379 100644 --- a/arch/arm/mach-imx/mach-imx6q.c +++ b/arch/arm/mach-imx/mach-imx6q.c @@ -1,5 +1,5 @@ /* - * Copyright 2011 Freescale Semiconductor, Inc. + * Copyright 2011-2013 Freescale Semiconductor, Inc. * Copyright 2011 Linaro Ltd. * * The code contained herein is licensed under the GNU General Public @@ -38,38 +38,32 @@ #include "cpuidle.h" #include "hardware.h" -#define IMX6Q_ANALOG_DIGPROG 0x260 +static u32 chip_revision; -static int imx6q_revision(void) +int imx6q_revision(void) { - struct device_node *np; - void __iomem *base; - static u32 rev; + return chip_revision; +} - if (!rev) { - np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-anatop"); - if (!np) - return IMX_CHIP_REVISION_UNKNOWN; - base = of_iomap(np, 0); - if (!base) { - of_node_put(np); - return IMX_CHIP_REVISION_UNKNOWN; - } - rev = readl_relaxed(base + IMX6Q_ANALOG_DIGPROG); - iounmap(base); - of_node_put(np); - } +static void __init imx6q_init_revision(void) +{ + u32 rev = imx_anatop_get_digprog(); switch (rev & 0xff) { case 0: - return IMX_CHIP_REVISION_1_0; + chip_revision = IMX_CHIP_REVISION_1_0; + break; case 1: - return IMX_CHIP_REVISION_1_1; + chip_revision = IMX_CHIP_REVISION_1_1; + break; case 2: - return IMX_CHIP_REVISION_1_2; + chip_revision = IMX_CHIP_REVISION_1_2; + break; default: - return IMX_CHIP_REVISION_UNKNOWN; + chip_revision = IMX_CHIP_REVISION_UNKNOWN; } + + mxc_set_cpu_type(rev >> 16 & 0xff); } static void imx6q_restart(char mode, const char *cmd) @@ -164,29 +158,7 @@ static void __init imx6q_1588_init(void) } static void __init imx6q_usb_init(void) { - struct regmap *anatop; - -#define HW_ANADIG_USB1_CHRG_DETECT 0x000001b0 -#define HW_ANADIG_USB2_CHRG_DETECT 0x00000210 - -#define BM_ANADIG_USB_CHRG_DETECT_EN_B 0x00100000 -#define BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B 0x00080000 - - anatop = syscon_regmap_lookup_by_compatible("fsl,imx6q-anatop"); - if (!IS_ERR(anatop)) { - /* - * The external charger detector needs to be disabled, - * or the signal at DP will be poor - */ - regmap_write(anatop, HW_ANADIG_USB1_CHRG_DETECT, - BM_ANADIG_USB_CHRG_DETECT_EN_B - | BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B); - regmap_write(anatop, HW_ANADIG_USB2_CHRG_DETECT, - BM_ANADIG_USB_CHRG_DETECT_EN_B | - BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B); - } else { - pr_warn("failed to find fsl,imx6q-anatop regmap\n"); - } + imx_anatop_usb_chrg_detect_disable(); } static void __init imx6q_init_machine(void) @@ -196,6 +168,7 @@ static void __init imx6q_init_machine(void) of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); + imx_anatop_init(); imx6q_pm_init(); imx6q_usb_init(); imx6q_1588_init(); @@ -282,6 +255,7 @@ static void __init imx6q_map_io(void) static void __init imx6q_init_irq(void) { + imx6q_init_revision(); l2x0_of_init(0, ~0UL); imx_src_init(); imx_gpc_init(); @@ -292,15 +266,17 @@ static void __init imx6q_timer_init(void) { mx6q_clocks_init(); clocksource_of_init(); - imx_print_silicon_rev("i.MX6Q", imx6q_revision()); + imx_print_silicon_rev(cpu_is_imx6dl() ? "i.MX6DL" : "i.MX6Q", + imx6q_revision()); } static const char *imx6q_dt_compat[] __initdata = { + "fsl,imx6dl", "fsl,imx6q", NULL, }; -DT_MACHINE_START(IMX6Q, "Freescale i.MX6 Quad (Device Tree)") +DT_MACHINE_START(IMX6Q, "Freescale i.MX6 Quad/DualLite (Device Tree)") .smp = smp_ops(imx_smp_ops), .map_io = imx6q_map_io, .init_irq = imx6q_init_irq, diff --git a/arch/arm/mach-imx/mm-imx1.c b/arch/arm/mach-imx/mm-imx1.c index 7a146671e65..3c609c52d3e 100644 --- a/arch/arm/mach-imx/mm-imx1.c +++ b/arch/arm/mach-imx/mm-imx1.c @@ -51,6 +51,8 @@ void __init mx1_init_irq(void) void __init imx1_soc_init(void) { + mxc_device_init(); + mxc_register_gpio("imx1-gpio", 0, MX1_GPIO1_BASE_ADDR, SZ_256, MX1_GPIO_INT_PORTA, 0); mxc_register_gpio("imx1-gpio", 1, MX1_GPIO2_BASE_ADDR, SZ_256, diff --git a/arch/arm/mach-imx/mxc.h b/arch/arm/mach-imx/mxc.h index 7dce17a9fe6..8629e5be7ec 100644 --- a/arch/arm/mach-imx/mxc.h +++ b/arch/arm/mach-imx/mxc.h @@ -34,6 +34,8 @@ #define MXC_CPU_MX35 35 #define MXC_CPU_MX51 51 #define MXC_CPU_MX53 53 +#define MXC_CPU_IMX6DL 0x61 +#define MXC_CPU_IMX6Q 0x63 #define IMX_CHIP_REVISION_1_0 0x10 #define IMX_CHIP_REVISION_1_1 0x11 @@ -150,6 +152,15 @@ extern unsigned int __mxc_cpu_type; #endif #ifndef __ASSEMBLY__ +static inline bool cpu_is_imx6dl(void) +{ + return __mxc_cpu_type == MXC_CPU_IMX6DL; +} + +static inline bool cpu_is_imx6q(void) +{ + return __mxc_cpu_type == MXC_CPU_IMX6Q; +} struct cpu_op { u32 cpu_rate; diff --git a/arch/arm/mach-imx/platsmp.c b/arch/arm/mach-imx/platsmp.c index 77e9a25ed0f..4a69305db65 100644 --- a/arch/arm/mach-imx/platsmp.c +++ b/arch/arm/mach-imx/platsmp.c @@ -68,8 +68,8 @@ static void __init imx_smp_init_cpus(void) ncores = scu_get_core_count(scu_base); - for (i = 0; i < ncores; i++) - set_cpu_possible(i, true); + for (i = ncores; i < NR_CPUS; i++) + set_cpu_possible(i, false); } void imx_smp_prepare(void) diff --git a/arch/arm/mach-imx/pm-imx6q.c b/arch/arm/mach-imx/pm-imx6q.c index 5faba7a3c95..204942749e2 100644 --- a/arch/arm/mach-imx/pm-imx6q.c +++ b/arch/arm/mach-imx/pm-imx6q.c @@ -1,5 +1,5 @@ /* - * Copyright 2011 Freescale Semiconductor, Inc. + * Copyright 2011-2013 Freescale Semiconductor, Inc. * Copyright 2011 Linaro Ltd. * * The code contained herein is licensed under the GNU General Public @@ -34,10 +34,12 @@ static int imx6q_pm_enter(suspend_state_t state) case PM_SUSPEND_MEM: imx6q_set_lpm(STOP_POWER_OFF); imx_gpc_pre_suspend(); + imx_anatop_pre_suspend(); imx_set_cpu_jump(0, v7_cpu_resume); /* Zzz ... */ cpu_suspend(0, imx6q_suspend_finish); imx_smp_prepare(); + imx_anatop_post_resume(); imx_gpc_post_resume(); imx6q_set_lpm(WAIT_CLOCKED); break; diff --git a/arch/arm/mach-imx/src.c b/arch/arm/mach-imx/src.c index 97d08688948..10a6b1a8c5a 100644 --- a/arch/arm/mach-imx/src.c +++ b/arch/arm/mach-imx/src.c @@ -14,6 +14,7 @@ #include <linux/io.h> #include <linux/of.h> #include <linux/of_address.h> +#include <linux/reset-controller.h> #include <linux/smp.h> #include <asm/smp_plat.h> #include "common.h" @@ -21,10 +22,65 @@ #define SRC_SCR 0x000 #define SRC_GPR1 0x020 #define BP_SRC_SCR_WARM_RESET_ENABLE 0 +#define BP_SRC_SCR_SW_GPU_RST 1 +#define BP_SRC_SCR_SW_VPU_RST 2 +#define BP_SRC_SCR_SW_IPU1_RST 3 +#define BP_SRC_SCR_SW_OPEN_VG_RST 4 +#define BP_SRC_SCR_SW_IPU2_RST 12 #define BP_SRC_SCR_CORE1_RST 14 #define BP_SRC_SCR_CORE1_ENABLE 22 static void __iomem *src_base; +static DEFINE_SPINLOCK(scr_lock); + +static const int sw_reset_bits[5] = { + BP_SRC_SCR_SW_GPU_RST, + BP_SRC_SCR_SW_VPU_RST, + BP_SRC_SCR_SW_IPU1_RST, + BP_SRC_SCR_SW_OPEN_VG_RST, + BP_SRC_SCR_SW_IPU2_RST +}; + +static int imx_src_reset_module(struct reset_controller_dev *rcdev, + unsigned long sw_reset_idx) +{ + unsigned long timeout; + unsigned long flags; + int bit; + u32 val; + + if (!src_base) + return -ENODEV; + + if (sw_reset_idx >= ARRAY_SIZE(sw_reset_bits)) + return -EINVAL; + + bit = 1 << sw_reset_bits[sw_reset_idx]; + + spin_lock_irqsave(&scr_lock, flags); + val = readl_relaxed(src_base + SRC_SCR); + val |= bit; + writel_relaxed(val, src_base + SRC_SCR); + spin_unlock_irqrestore(&scr_lock, flags); + + timeout = jiffies + msecs_to_jiffies(1000); + while (readl(src_base + SRC_SCR) & bit) { + if (time_after(jiffies, timeout)) + return -ETIME; + cpu_relax(); + } + + return 0; +} + +static struct reset_control_ops imx_src_ops = { + .reset = imx_src_reset_module, +}; + +static struct reset_controller_dev imx_reset_controller = { + .ops = &imx_src_ops, + .nr_resets = ARRAY_SIZE(sw_reset_bits), +}; void imx_enable_cpu(int cpu, bool enable) { @@ -32,9 +88,11 @@ void imx_enable_cpu(int cpu, bool enable) cpu = cpu_logical_map(cpu); mask = 1 << (BP_SRC_SCR_CORE1_ENABLE + cpu - 1); + spin_lock(&scr_lock); val = readl_relaxed(src_base + SRC_SCR); val = enable ? val | mask : val & ~mask; writel_relaxed(val, src_base + SRC_SCR); + spin_unlock(&scr_lock); } void imx_set_cpu_jump(int cpu, void *jump_addr) @@ -61,9 +119,11 @@ void imx_src_prepare_restart(void) u32 val; /* clear enable bits of secondary cores */ + spin_lock(&scr_lock); val = readl_relaxed(src_base + SRC_SCR); val &= ~(0x7 << BP_SRC_SCR_CORE1_ENABLE); writel_relaxed(val, src_base + SRC_SCR); + spin_unlock(&scr_lock); /* clear persistent entry register of primary core */ writel_relaxed(0, src_base + SRC_GPR1); @@ -80,11 +140,17 @@ void __init imx_src_init(void) src_base = of_iomap(np, 0); WARN_ON(!src_base); + imx_reset_controller.of_node = np; + if (IS_ENABLED(CONFIG_RESET_CONTROLLER)) + reset_controller_register(&imx_reset_controller); + /* * force warm reset sources to generate cold reset * for a more reliable restart */ + spin_lock(&scr_lock); val = readl_relaxed(src_base + SRC_SCR); val &= ~(1 << BP_SRC_SCR_WARM_RESET_ENABLE); writel_relaxed(val, src_base + SRC_SCR); + spin_unlock(&scr_lock); } diff --git a/arch/arm/mach-kirkwood/Makefile b/arch/arm/mach-kirkwood/Makefile index cdbca328a41..e1f3735d341 100644 --- a/arch/arm/mach-kirkwood/Makefile +++ b/arch/arm/mach-kirkwood/Makefile @@ -1,4 +1,4 @@ -obj-y += common.o addr-map.o irq.o pcie.o mpp.o +obj-y += common.o irq.o pcie.o mpp.o obj-$(CONFIG_MACH_D2NET_V2) += d2net_v2-setup.o lacie_v2-common.o obj-$(CONFIG_MACH_DB88F6281_BP) += db88f6281-bp-setup.o diff --git a/arch/arm/mach-kirkwood/addr-map.c b/arch/arm/mach-kirkwood/addr-map.c deleted file mode 100644 index 8f0d162a1e1..00000000000 --- a/arch/arm/mach-kirkwood/addr-map.c +++ /dev/null @@ -1,91 +0,0 @@ -/* - * arch/arm/mach-kirkwood/addr-map.c - * - * Address map functions for Marvell Kirkwood SoCs - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/mbus.h> -#include <linux/io.h> -#include <mach/hardware.h> -#include <plat/addr-map.h> -#include "common.h" - -/* - * Generic Address Decode Windows bit settings - */ -#define TARGET_DEV_BUS 1 -#define TARGET_SRAM 3 -#define TARGET_PCIE 4 -#define ATTR_DEV_SPI_ROM 0x1e -#define ATTR_DEV_BOOT 0x1d -#define ATTR_DEV_NAND 0x2f -#define ATTR_DEV_CS3 0x37 -#define ATTR_DEV_CS2 0x3b -#define ATTR_DEV_CS1 0x3d -#define ATTR_DEV_CS0 0x3e -#define ATTR_PCIE_IO 0xe0 -#define ATTR_PCIE_MEM 0xe8 -#define ATTR_PCIE1_IO 0xd0 -#define ATTR_PCIE1_MEM 0xd8 -#define ATTR_SRAM 0x01 - -/* - * Description of the windows needed by the platform code - */ -static struct __initdata orion_addr_map_cfg addr_map_cfg = { - .num_wins = 8, - .remappable_wins = 4, - .bridge_virt_base = BRIDGE_VIRT_BASE, -}; - -static const struct __initdata orion_addr_map_info addr_map_info[] = { - /* - * Windows for PCIe IO+MEM space. - */ - { 0, KIRKWOOD_PCIE_IO_PHYS_BASE, KIRKWOOD_PCIE_IO_SIZE, - TARGET_PCIE, ATTR_PCIE_IO, KIRKWOOD_PCIE_IO_BUS_BASE - }, - { 1, KIRKWOOD_PCIE_MEM_PHYS_BASE, KIRKWOOD_PCIE_MEM_SIZE, - TARGET_PCIE, ATTR_PCIE_MEM, KIRKWOOD_PCIE_MEM_BUS_BASE - }, - { 2, KIRKWOOD_PCIE1_IO_PHYS_BASE, KIRKWOOD_PCIE1_IO_SIZE, - TARGET_PCIE, ATTR_PCIE1_IO, KIRKWOOD_PCIE1_IO_BUS_BASE - }, - { 3, KIRKWOOD_PCIE1_MEM_PHYS_BASE, KIRKWOOD_PCIE1_MEM_SIZE, - TARGET_PCIE, ATTR_PCIE1_MEM, KIRKWOOD_PCIE1_MEM_BUS_BASE - }, - /* - * Window for NAND controller. - */ - { 4, KIRKWOOD_NAND_MEM_PHYS_BASE, KIRKWOOD_NAND_MEM_SIZE, - TARGET_DEV_BUS, ATTR_DEV_NAND, -1 - }, - /* - * Window for SRAM. - */ - { 5, KIRKWOOD_SRAM_PHYS_BASE, KIRKWOOD_SRAM_SIZE, - TARGET_SRAM, ATTR_SRAM, -1 - }, - /* End marker */ - { -1, 0, 0, 0, 0, 0 } -}; - -void __init kirkwood_setup_cpu_mbus(void) -{ - /* - * Disable, clear and configure windows. - */ - orion_config_wins(&addr_map_cfg, addr_map_info); - - /* - * Setup MBUS dram target info. - */ - orion_setup_cpu_mbus_target(&addr_map_cfg, - (void __iomem *) DDR_WINDOW_CPU_BASE); -} diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c index 7904758e771..e9647b80cb5 100644 --- a/arch/arm/mach-kirkwood/board-dt.c +++ b/arch/arm/mach-kirkwood/board-dt.c @@ -93,7 +93,7 @@ static void __init kirkwood_dt_init(void) */ writel(readl(CPU_CONFIG) & ~CPU_CONFIG_ERROR_PROP, CPU_CONFIG); - kirkwood_setup_cpu_mbus(); + kirkwood_setup_wins(); kirkwood_l2_init(); diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c index 49792a0cd2d..c2cae69e6d2 100644 --- a/arch/arm/mach-kirkwood/common.c +++ b/arch/arm/mach-kirkwood/common.c @@ -33,7 +33,6 @@ #include <linux/platform_data/usb-ehci-orion.h> #include <plat/common.h> #include <plat/time.h> -#include <plat/addr-map.h> #include <linux/platform_data/dma-mv_xor.h> #include "common.h" @@ -535,6 +534,9 @@ void __init kirkwood_init_early(void) * the allocations won't fail. */ init_dma_coherent_pool_size(SZ_1M); + mvebu_mbus_init("marvell,kirkwood-mbus", + BRIDGE_WINS_BASE, BRIDGE_WINS_SZ, + DDR_WINDOW_CPU_BASE, DDR_WINDOW_CPU_SZ); } int kirkwood_tclk; @@ -650,6 +652,38 @@ char * __init kirkwood_id(void) } } +void __init kirkwood_setup_wins(void) +{ + /* + * The PCIe windows will no longer be statically allocated + * here once Kirkwood is migrated to the pci-mvebu driver. + */ + mvebu_mbus_add_window_remap_flags("pcie0.0", + KIRKWOOD_PCIE_IO_PHYS_BASE, + KIRKWOOD_PCIE_IO_SIZE, + KIRKWOOD_PCIE_IO_BUS_BASE, + MVEBU_MBUS_PCI_IO); + mvebu_mbus_add_window_remap_flags("pcie0.0", + KIRKWOOD_PCIE_MEM_PHYS_BASE, + KIRKWOOD_PCIE_MEM_SIZE, + MVEBU_MBUS_NO_REMAP, + MVEBU_MBUS_PCI_MEM); + mvebu_mbus_add_window_remap_flags("pcie1.0", + KIRKWOOD_PCIE1_IO_PHYS_BASE, + KIRKWOOD_PCIE1_IO_SIZE, + KIRKWOOD_PCIE1_IO_BUS_BASE, + MVEBU_MBUS_PCI_IO); + mvebu_mbus_add_window_remap_flags("pcie1.0", + KIRKWOOD_PCIE1_MEM_PHYS_BASE, + KIRKWOOD_PCIE1_MEM_SIZE, + MVEBU_MBUS_NO_REMAP, + MVEBU_MBUS_PCI_MEM); + mvebu_mbus_add_window("nand", KIRKWOOD_NAND_MEM_PHYS_BASE, + KIRKWOOD_NAND_MEM_SIZE); + mvebu_mbus_add_window("sram", KIRKWOOD_SRAM_PHYS_BASE, + KIRKWOOD_SRAM_SIZE); +} + void __init kirkwood_l2_init(void) { #ifdef CONFIG_CACHE_FEROCEON_L2 @@ -675,7 +709,7 @@ void __init kirkwood_init(void) */ writel(readl(CPU_CONFIG) & ~CPU_CONFIG_ERROR_PROP, CPU_CONFIG); - kirkwood_setup_cpu_mbus(); + kirkwood_setup_wins(); kirkwood_l2_init(); diff --git a/arch/arm/mach-kirkwood/common.h b/arch/arm/mach-kirkwood/common.h index 3147be2f34d..21da3b1ebd7 100644 --- a/arch/arm/mach-kirkwood/common.h +++ b/arch/arm/mach-kirkwood/common.h @@ -30,7 +30,7 @@ void kirkwood_init(void); void kirkwood_init_early(void); void kirkwood_init_irq(void); -void kirkwood_setup_cpu_mbus(void); +void kirkwood_setup_wins(void); void kirkwood_enable_pcie(void); void kirkwood_pcie_id(u32 *dev, u32 *rev); diff --git a/arch/arm/mach-kirkwood/include/mach/kirkwood.h b/arch/arm/mach-kirkwood/include/mach/kirkwood.h index a05563a31c9..92976cef391 100644 --- a/arch/arm/mach-kirkwood/include/mach/kirkwood.h +++ b/arch/arm/mach-kirkwood/include/mach/kirkwood.h @@ -60,8 +60,9 @@ * Register Map */ #define DDR_VIRT_BASE (KIRKWOOD_REGS_VIRT_BASE + 0x00000) -#define DDR_PHYS_BASE (KIRKWOOD_REGS_PHYS_BASE + 0x00000) -#define DDR_WINDOW_CPU_BASE (DDR_VIRT_BASE + 0x1500) +#define DDR_PHYS_BASE (KIRKWOOD_REGS_PHYS_BASE + 0x00000) +#define DDR_WINDOW_CPU_BASE (DDR_PHYS_BASE + 0x1500) +#define DDR_WINDOW_CPU_SZ (0x20) #define DDR_OPERATION_BASE (DDR_PHYS_BASE + 0x1418) #define DEV_BUS_PHYS_BASE (KIRKWOOD_REGS_PHYS_BASE + 0x10000) @@ -80,6 +81,8 @@ #define BRIDGE_VIRT_BASE (KIRKWOOD_REGS_VIRT_BASE + 0x20000) #define BRIDGE_PHYS_BASE (KIRKWOOD_REGS_PHYS_BASE + 0x20000) +#define BRIDGE_WINS_BASE (BRIDGE_PHYS_BASE) +#define BRIDGE_WINS_SZ (0x80) #define CRYPTO_PHYS_BASE (KIRKWOOD_REGS_PHYS_BASE + 0x30000) diff --git a/arch/arm/mach-kirkwood/pcie.c b/arch/arm/mach-kirkwood/pcie.c index d96ad4c0997..7f43e6c2f8c 100644 --- a/arch/arm/mach-kirkwood/pcie.c +++ b/arch/arm/mach-kirkwood/pcie.c @@ -17,7 +17,6 @@ #include <asm/mach/pci.h> #include <plat/pcie.h> #include <mach/bridge-regs.h> -#include <plat/addr-map.h> #include "common.h" static void kirkwood_enable_pcie_clk(const char *port) diff --git a/arch/arm/mach-mv78xx0/Makefile b/arch/arm/mach-mv78xx0/Makefile index 67a13f9bfe6..7cd04634d30 100644 --- a/arch/arm/mach-mv78xx0/Makefile +++ b/arch/arm/mach-mv78xx0/Makefile @@ -1,4 +1,4 @@ -obj-y += common.o addr-map.o mpp.o irq.o pcie.o +obj-y += common.o mpp.o irq.o pcie.o obj-$(CONFIG_MACH_DB78X00_BP) += db78x00-bp-setup.o obj-$(CONFIG_MACH_RD78X00_MASA) += rd78x00-masa-setup.o obj-$(CONFIG_MACH_TERASTATION_WXL) += buffalo-wxl-setup.o diff --git a/arch/arm/mach-mv78xx0/addr-map.c b/arch/arm/mach-mv78xx0/addr-map.c deleted file mode 100644 index 26e9876b50e..00000000000 --- a/arch/arm/mach-mv78xx0/addr-map.c +++ /dev/null @@ -1,93 +0,0 @@ -/* - * arch/arm/mach-mv78xx0/addr-map.c - * - * Address map functions for Marvell MV78xx0 SoCs - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/mbus.h> -#include <linux/io.h> -#include <plat/addr-map.h> -#include <mach/mv78xx0.h> -#include "common.h" - -/* - * Generic Address Decode Windows bit settings - */ -#define TARGET_DEV_BUS 1 -#define TARGET_PCIE0 4 -#define TARGET_PCIE1 8 -#define TARGET_PCIE(i) ((i) ? TARGET_PCIE1 : TARGET_PCIE0) -#define ATTR_DEV_SPI_ROM 0x1f -#define ATTR_DEV_BOOT 0x2f -#define ATTR_DEV_CS3 0x37 -#define ATTR_DEV_CS2 0x3b -#define ATTR_DEV_CS1 0x3d -#define ATTR_DEV_CS0 0x3e -#define ATTR_PCIE_IO(l) (0xf0 & ~(0x10 << (l))) -#define ATTR_PCIE_MEM(l) (0xf8 & ~(0x10 << (l))) - -/* - * CPU Address Decode Windows registers - */ -#define WIN0_OFF(n) (BRIDGE_VIRT_BASE + 0x0000 + ((n) << 4)) -#define WIN8_OFF(n) (BRIDGE_VIRT_BASE + 0x0900 + (((n) - 8) << 4)) - -static void __init __iomem *win_cfg_base(const struct orion_addr_map_cfg *cfg, int win) -{ - /* - * Find the control register base address for this window. - * - * BRIDGE_VIRT_BASE points to the right (CPU0's or CPU1's) - * MBUS bridge depending on which CPU core we're running on, - * so we don't need to take that into account here. - */ - - return (win < 8) ? WIN0_OFF(win) : WIN8_OFF(win); -} - -/* - * Description of the windows needed by the platform code - */ -static struct orion_addr_map_cfg addr_map_cfg __initdata = { - .num_wins = 14, - .remappable_wins = 8, - .win_cfg_base = win_cfg_base, -}; - -void __init mv78xx0_setup_cpu_mbus(void) -{ - /* - * Disable, clear and configure windows. - */ - orion_config_wins(&addr_map_cfg, NULL); - - /* - * Setup MBUS dram target info. - */ - if (mv78xx0_core_index() == 0) - orion_setup_cpu_mbus_target(&addr_map_cfg, - (void __iomem *) DDR_WINDOW_CPU0_BASE); - else - orion_setup_cpu_mbus_target(&addr_map_cfg, - (void __iomem *) DDR_WINDOW_CPU1_BASE); -} - -void __init mv78xx0_setup_pcie_io_win(int window, u32 base, u32 size, - int maj, int min) -{ - orion_setup_cpu_win(&addr_map_cfg, window, base, size, - TARGET_PCIE(maj), ATTR_PCIE_IO(min), 0); -} - -void __init mv78xx0_setup_pcie_mem_win(int window, u32 base, u32 size, - int maj, int min) -{ - orion_setup_cpu_win(&addr_map_cfg, window, base, size, - TARGET_PCIE(maj), ATTR_PCIE_MEM(min), -1); -} diff --git a/arch/arm/mach-mv78xx0/common.c b/arch/arm/mach-mv78xx0/common.c index 0efa14498eb..749a7f8c499 100644 --- a/arch/arm/mach-mv78xx0/common.c +++ b/arch/arm/mach-mv78xx0/common.c @@ -334,6 +334,14 @@ void __init mv78xx0_uart3_init(void) void __init mv78xx0_init_early(void) { orion_time_set_base(TIMER_VIRT_BASE); + if (mv78xx0_core_index() == 0) + mvebu_mbus_init("marvell,mv78xx0-mbus", + BRIDGE_WINS_CPU0_BASE, BRIDGE_WINS_SZ, + DDR_WINDOW_CPU0_BASE, DDR_WINDOW_CPU_SZ); + else + mvebu_mbus_init("marvell,mv78xx0-mbus", + BRIDGE_WINS_CPU1_BASE, BRIDGE_WINS_SZ, + DDR_WINDOW_CPU1_BASE, DDR_WINDOW_CPU_SZ); } void __init_refok mv78xx0_timer_init(void) @@ -397,8 +405,6 @@ void __init mv78xx0_init(void) printk("HCLK = %dMHz, ", (hclk + 499999) / 1000000); printk("TCLK = %dMHz\n", (get_tclk() + 499999) / 1000000); - mv78xx0_setup_cpu_mbus(); - #ifdef CONFIG_CACHE_FEROCEON_L2 feroceon_l2_init(is_l2_writethrough()); #endif diff --git a/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h b/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h index 46200a183cf..723748d8ba7 100644 --- a/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h +++ b/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h @@ -60,13 +60,18 @@ */ #define BRIDGE_VIRT_BASE (MV78XX0_CORE_REGS_VIRT_BASE) #define BRIDGE_PHYS_BASE (MV78XX0_CORE_REGS_PHYS_BASE) +#define BRIDGE_WINS_CPU0_BASE (MV78XX0_CORE0_REGS_PHYS_BASE) +#define BRIDGE_WINS_CPU1_BASE (MV78XX0_CORE1_REGS_PHYS_BASE) +#define BRIDGE_WINS_SZ (0xA000) /* * Register Map */ #define DDR_VIRT_BASE (MV78XX0_REGS_VIRT_BASE + 0x00000) -#define DDR_WINDOW_CPU0_BASE (DDR_VIRT_BASE + 0x1500) -#define DDR_WINDOW_CPU1_BASE (DDR_VIRT_BASE + 0x1570) +#define DDR_PHYS_BASE (MV78XX0_REGS_PHYS_BASE + 0x00000) +#define DDR_WINDOW_CPU0_BASE (DDR_PHYS_BASE + 0x1500) +#define DDR_WINDOW_CPU1_BASE (DDR_PHYS_BASE + 0x1570) +#define DDR_WINDOW_CPU_SZ (0x20) #define DEV_BUS_PHYS_BASE (MV78XX0_REGS_PHYS_BASE + 0x10000) #define DEV_BUS_VIRT_BASE (MV78XX0_REGS_VIRT_BASE + 0x10000) diff --git a/arch/arm/mach-mv78xx0/pcie.c b/arch/arm/mach-mv78xx0/pcie.c index ee8c0b51df2..dc26a654c49 100644 --- a/arch/arm/mach-mv78xx0/pcie.c +++ b/arch/arm/mach-mv78xx0/pcie.c @@ -10,11 +10,11 @@ #include <linux/kernel.h> #include <linux/pci.h> +#include <linux/mbus.h> #include <video/vga.h> #include <asm/irq.h> #include <asm/mach/pci.h> #include <plat/pcie.h> -#include <plat/addr-map.h> #include <mach/mv78xx0.h> #include "common.h" @@ -54,7 +54,6 @@ static void __init mv78xx0_pcie_preinit(void) int i; u32 size_each; u32 start; - int win = 0; pcie_io_space.name = "PCIe I/O Space"; pcie_io_space.start = MV78XX0_PCIE_IO_PHYS_BASE(0); @@ -72,6 +71,7 @@ static void __init mv78xx0_pcie_preinit(void) start = MV78XX0_PCIE_MEM_PHYS_BASE; for (i = 0; i < num_pcie_ports; i++) { struct pcie_port *pp = pcie_port + i; + char winname[MVEBU_MBUS_MAX_WINNAME_SZ]; snprintf(pp->mem_space_name, sizeof(pp->mem_space_name), "PCIe %d.%d MEM", pp->maj, pp->min); @@ -85,12 +85,17 @@ static void __init mv78xx0_pcie_preinit(void) if (request_resource(&iomem_resource, &pp->res)) panic("can't allocate PCIe MEM sub-space"); - mv78xx0_setup_pcie_mem_win(win + i + 8, pp->res.start, - resource_size(&pp->res), - pp->maj, pp->min); + snprintf(winname, sizeof(winname), "pcie%d.%d", + pp->maj, pp->min); - mv78xx0_setup_pcie_io_win(win + i, i * SZ_64K, SZ_64K, - pp->maj, pp->min); + mvebu_mbus_add_window_remap_flags(winname, + pp->res.start, + resource_size(&pp->res), + MVEBU_MBUS_NO_REMAP, + MVEBU_MBUS_PCI_MEM); + mvebu_mbus_add_window_remap_flags(winname, + i * SZ_64K, SZ_64K, + 0, MVEBU_MBUS_PCI_IO); } } diff --git a/arch/arm/mach-mvebu/Kconfig b/arch/arm/mach-mvebu/Kconfig index 440b13ef1fe..e11acbb0a46 100644 --- a/arch/arm/mach-mvebu/Kconfig +++ b/arch/arm/mach-mvebu/Kconfig @@ -13,6 +13,8 @@ config ARCH_MVEBU select MVEBU_CLK_CORE select MVEBU_CLK_CPU select MVEBU_CLK_GATING + select MVEBU_MBUS + select ZONE_DMA if ARM_LPAE if ARCH_MVEBU diff --git a/arch/arm/mach-mvebu/Makefile b/arch/arm/mach-mvebu/Makefile index da93bcbc74c..ba769e082ad 100644 --- a/arch/arm/mach-mvebu/Makefile +++ b/arch/arm/mach-mvebu/Makefile @@ -5,6 +5,6 @@ AFLAGS_coherency_ll.o := -Wa,-march=armv7-a obj-y += system-controller.o obj-$(CONFIG_MACH_ARMADA_370_XP) += armada-370-xp.o -obj-$(CONFIG_ARCH_MVEBU) += addr-map.o coherency.o coherency_ll.o pmsu.o irq-armada-370-xp.o +obj-$(CONFIG_ARCH_MVEBU) += coherency.o coherency_ll.o pmsu.o irq-armada-370-xp.o obj-$(CONFIG_SMP) += platsmp.o headsmp.o obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o diff --git a/arch/arm/mach-mvebu/addr-map.c b/arch/arm/mach-mvebu/addr-map.c deleted file mode 100644 index ab9b3bd4fef..00000000000 --- a/arch/arm/mach-mvebu/addr-map.c +++ /dev/null @@ -1,137 +0,0 @@ -/* - * Address map functions for Marvell 370 / XP SoCs - * - * Copyright (C) 2012 Marvell - * - * Thomas Petazzoni <thomas.petazzoni@free-electrons.com> - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/mbus.h> -#include <linux/io.h> -#include <linux/of.h> -#include <linux/of_address.h> -#include <plat/addr-map.h> - -/* - * Generic Address Decode Windows bit settings - */ -#define ARMADA_XP_TARGET_DEV_BUS 1 -#define ARMADA_XP_ATTR_DEV_BOOTROM 0x1D -#define ARMADA_XP_TARGET_ETH1 3 -#define ARMADA_XP_TARGET_PCIE_0_2 4 -#define ARMADA_XP_TARGET_ETH0 7 -#define ARMADA_XP_TARGET_PCIE_1_3 8 - -#define ARMADA_370_TARGET_DEV_BUS 1 -#define ARMADA_370_ATTR_DEV_BOOTROM 0x1D -#define ARMADA_370_TARGET_PCIE_0 4 -#define ARMADA_370_TARGET_PCIE_1 8 - -#define ARMADA_WINDOW_8_PLUS_OFFSET 0x90 -#define ARMADA_SDRAM_ADDR_DECODING_OFFSET 0x180 - -static const struct __initdata orion_addr_map_info -armada_xp_addr_map_info[] = { - /* - * Window for the BootROM, needed for SMP on Armada XP - */ - { 0, 0xfff00000, SZ_1M, ARMADA_XP_TARGET_DEV_BUS, - ARMADA_XP_ATTR_DEV_BOOTROM, -1 }, - /* End marker */ - { -1, 0, 0, 0, 0, 0 }, -}; - -static const struct __initdata orion_addr_map_info -armada_370_addr_map_info[] = { - /* End marker */ - { -1, 0, 0, 0, 0, 0 }, -}; - -static struct of_device_id of_addr_decoding_controller_table[] = { - { .compatible = "marvell,armada-addr-decoding-controller" }, - { /* end of list */ }, -}; - -static void __iomem * -armada_cfg_base(const struct orion_addr_map_cfg *cfg, int win) -{ - unsigned int offset; - - /* The register layout is a bit annoying and the below code - * tries to cope with it. - * - At offset 0x0, there are the registers for the first 8 - * windows, with 4 registers of 32 bits per window (ctrl, - * base, remap low, remap high) - * - Then at offset 0x80, there is a hole of 0x10 bytes for - * the internal registers base address and internal units - * sync barrier register. - * - Then at offset 0x90, there the registers for 12 - * windows, with only 2 registers of 32 bits per window - * (ctrl, base). - */ - if (win < 8) - offset = (win << 4); - else - offset = ARMADA_WINDOW_8_PLUS_OFFSET + ((win - 8) << 3); - - return cfg->bridge_virt_base + offset; -} - -static struct __initdata orion_addr_map_cfg addr_map_cfg = { - .num_wins = 20, - .remappable_wins = 8, - .win_cfg_base = armada_cfg_base, -}; - -static int __init armada_setup_cpu_mbus(void) -{ - struct device_node *np; - void __iomem *mbus_unit_addr_decoding_base; - void __iomem *sdram_addr_decoding_base; - - np = of_find_matching_node(NULL, of_addr_decoding_controller_table); - if (!np) - return -ENODEV; - - mbus_unit_addr_decoding_base = of_iomap(np, 0); - BUG_ON(!mbus_unit_addr_decoding_base); - - sdram_addr_decoding_base = - mbus_unit_addr_decoding_base + - ARMADA_SDRAM_ADDR_DECODING_OFFSET; - - addr_map_cfg.bridge_virt_base = mbus_unit_addr_decoding_base; - - if (of_find_compatible_node(NULL, NULL, "marvell,coherency-fabric")) - addr_map_cfg.hw_io_coherency = 1; - - /* - * Disable, clear and configure windows. - */ - if (of_machine_is_compatible("marvell,armadaxp")) - orion_config_wins(&addr_map_cfg, armada_xp_addr_map_info); - else if (of_machine_is_compatible("marvell,armada370")) - orion_config_wins(&addr_map_cfg, armada_370_addr_map_info); - else { - pr_err("Unsupported SoC\n"); - return -EINVAL; - } - - /* - * Setup MBUS dram target info. - */ - orion_setup_cpu_mbus_target(&addr_map_cfg, - sdram_addr_decoding_base); - return 0; -} - -/* Using a early_initcall is needed so that this initialization gets - * done before the SMP initialization, which requires the BootROM to - * be remapped. */ -early_initcall(armada_setup_cpu_mbus); diff --git a/arch/arm/mach-mvebu/armada-370-xp.c b/arch/arm/mach-mvebu/armada-370-xp.c index a5ea616d6d1..12d3655830d 100644 --- a/arch/arm/mach-mvebu/armada-370-xp.c +++ b/arch/arm/mach-mvebu/armada-370-xp.c @@ -19,6 +19,7 @@ #include <linux/time-armada-370-xp.h> #include <linux/clk/mvebu.h> #include <linux/dma-mapping.h> +#include <linux/mbus.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> #include <asm/mach/time.h> @@ -48,12 +49,29 @@ void __init armada_370_xp_timer_and_clk_init(void) void __init armada_370_xp_init_early(void) { + char *mbus_soc_name; + /* * Some Armada 370/XP devices allocate their coherent buffers * from atomic context. Increase size of atomic coherent pool * to make sure such the allocations won't fail. */ init_dma_coherent_pool_size(SZ_1M); + + /* + * This initialization will be replaced by a DT-based + * initialization once the mvebu-mbus driver gains DT support. + */ + if (of_machine_is_compatible("marvell,armada370")) + mbus_soc_name = "marvell,armada370-mbus"; + else + mbus_soc_name = "marvell,armadaxp-mbus"; + + mvebu_mbus_init(mbus_soc_name, + ARMADA_370_XP_MBUS_WINS_BASE, + ARMADA_370_XP_MBUS_WINS_SIZE, + ARMADA_370_XP_SDRAM_WINS_BASE, + ARMADA_370_XP_SDRAM_WINS_SIZE); } static void __init armada_370_xp_dt_init(void) diff --git a/arch/arm/mach-mvebu/armada-370-xp.h b/arch/arm/mach-mvebu/armada-370-xp.h index c6a7d74fddf..2070e1b4f34 100644 --- a/arch/arm/mach-mvebu/armada-370-xp.h +++ b/arch/arm/mach-mvebu/armada-370-xp.h @@ -16,9 +16,15 @@ #define __MACH_ARMADA_370_XP_H #define ARMADA_370_XP_REGS_PHYS_BASE 0xd0000000 -#define ARMADA_370_XP_REGS_VIRT_BASE IOMEM(0xfeb00000) +#define ARMADA_370_XP_REGS_VIRT_BASE IOMEM(0xfec00000) #define ARMADA_370_XP_REGS_SIZE SZ_1M +/* These defines can go away once mvebu-mbus has a DT binding */ +#define ARMADA_370_XP_MBUS_WINS_BASE (ARMADA_370_XP_REGS_PHYS_BASE + 0x20000) +#define ARMADA_370_XP_MBUS_WINS_SIZE 0x100 +#define ARMADA_370_XP_SDRAM_WINS_BASE (ARMADA_370_XP_REGS_PHYS_BASE + 0x20180) +#define ARMADA_370_XP_SDRAM_WINS_SIZE 0x20 + #ifdef CONFIG_SMP #include <linux/cpumask.h> diff --git a/arch/arm/mach-mvebu/platsmp.c b/arch/arm/mach-mvebu/platsmp.c index fe16aaf7c19..875ea748391 100644 --- a/arch/arm/mach-mvebu/platsmp.c +++ b/arch/arm/mach-mvebu/platsmp.c @@ -21,6 +21,7 @@ #include <linux/smp.h> #include <linux/clk.h> #include <linux/of.h> +#include <linux/mbus.h> #include <asm/cacheflush.h> #include <asm/smp_plat.h> #include "common.h" @@ -109,6 +110,7 @@ void __init armada_xp_smp_prepare_cpus(unsigned int max_cpus) set_secondary_cpus_clock(); flush_cache_all(); set_cpu_coherent(cpu_logical_map(smp_processor_id()), 0); + mvebu_mbus_add_window("bootrom", 0xfff00000, SZ_1M); } struct smp_operations armada_xp_smp_ops __initdata = { diff --git a/arch/arm/mach-orion5x/Makefile b/arch/arm/mach-orion5x/Makefile index 9e809a7c05c..45da805fb23 100644 --- a/arch/arm/mach-orion5x/Makefile +++ b/arch/arm/mach-orion5x/Makefile @@ -1,4 +1,4 @@ -obj-y += common.o addr-map.o pci.o irq.o mpp.o +obj-y += common.o pci.o irq.o mpp.o obj-$(CONFIG_MACH_DB88F5281) += db88f5281-setup.o obj-$(CONFIG_MACH_RD88F5182) += rd88f5182-setup.o obj-$(CONFIG_MACH_KUROBOX_PRO) += kurobox_pro-setup.o diff --git a/arch/arm/mach-orion5x/addr-map.c b/arch/arm/mach-orion5x/addr-map.c deleted file mode 100644 index b5efc0fd31c..00000000000 --- a/arch/arm/mach-orion5x/addr-map.c +++ /dev/null @@ -1,155 +0,0 @@ -/* - * arch/arm/mach-orion5x/addr-map.c - * - * Address map functions for Marvell Orion 5x SoCs - * - * Maintainer: Tzachi Perelstein <tzachi@marvell.com> - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/mbus.h> -#include <linux/io.h> -#include <mach/hardware.h> -#include <plat/addr-map.h> -#include "common.h" - -/* - * The Orion has fully programmable address map. There's a separate address - * map for each of the device _master_ interfaces, e.g. CPU, PCI, PCIe, USB, - * Gigabit Ethernet, DMA/XOR engines, etc. Each interface has its own - * address decode windows that allow it to access any of the Orion resources. - * - * CPU address decoding -- - * Linux assumes that it is the boot loader that already setup the access to - * DDR and internal registers. - * Setup access to PCI and PCIe IO/MEM space is issued by this file. - * Setup access to various devices located on the device bus interface (e.g. - * flashes, RTC, etc) should be issued by machine-setup.c according to - * specific board population (by using orion5x_setup_*_win()). - * - * Non-CPU Masters address decoding -- - * Unlike the CPU, we setup the access from Orion's master interfaces to DDR - * banks only (the typical use case). - * Setup access for each master to DDR is issued by platform device setup. - */ - -/* - * Generic Address Decode Windows bit settings - */ -#define TARGET_DEV_BUS 1 -#define TARGET_PCI 3 -#define TARGET_PCIE 4 -#define TARGET_SRAM 9 -#define ATTR_PCIE_MEM 0x59 -#define ATTR_PCIE_IO 0x51 -#define ATTR_PCIE_WA 0x79 -#define ATTR_PCI_MEM 0x59 -#define ATTR_PCI_IO 0x51 -#define ATTR_DEV_CS0 0x1e -#define ATTR_DEV_CS1 0x1d -#define ATTR_DEV_CS2 0x1b -#define ATTR_DEV_BOOT 0xf -#define ATTR_SRAM 0x0 - -static int __initdata win_alloc_count; - -static int __init cpu_win_can_remap(const struct orion_addr_map_cfg *cfg, - const int win) -{ - u32 dev, rev; - - orion5x_pcie_id(&dev, &rev); - if ((dev == MV88F5281_DEV_ID && win < 4) - || (dev == MV88F5182_DEV_ID && win < 2) - || (dev == MV88F5181_DEV_ID && win < 2) - || (dev == MV88F6183_DEV_ID && win < 4)) - return 1; - - return 0; -} - -/* - * Description of the windows needed by the platform code - */ -static struct orion_addr_map_cfg addr_map_cfg __initdata = { - .num_wins = 8, - .cpu_win_can_remap = cpu_win_can_remap, - .bridge_virt_base = ORION5X_BRIDGE_VIRT_BASE, -}; - -static const struct __initdata orion_addr_map_info addr_map_info[] = { - /* - * Setup windows for PCI+PCIe IO+MEM space. - */ - { 0, ORION5X_PCIE_IO_PHYS_BASE, ORION5X_PCIE_IO_SIZE, - TARGET_PCIE, ATTR_PCIE_IO, ORION5X_PCIE_IO_BUS_BASE - }, - { 1, ORION5X_PCI_IO_PHYS_BASE, ORION5X_PCI_IO_SIZE, - TARGET_PCI, ATTR_PCI_IO, ORION5X_PCI_IO_BUS_BASE - }, - { 2, ORION5X_PCIE_MEM_PHYS_BASE, ORION5X_PCIE_MEM_SIZE, - TARGET_PCIE, ATTR_PCIE_MEM, -1 - }, - { 3, ORION5X_PCI_MEM_PHYS_BASE, ORION5X_PCI_MEM_SIZE, - TARGET_PCI, ATTR_PCI_MEM, -1 - }, - /* End marker */ - { -1, 0, 0, 0, 0, 0 } -}; - -void __init orion5x_setup_cpu_mbus_bridge(void) -{ - /* - * Disable, clear and configure windows. - */ - orion_config_wins(&addr_map_cfg, addr_map_info); - win_alloc_count = 4; - - /* - * Setup MBUS dram target info. - */ - orion_setup_cpu_mbus_target(&addr_map_cfg, - (void __iomem *) ORION5X_DDR_WINDOW_CPU_BASE); -} - -void __init orion5x_setup_dev_boot_win(u32 base, u32 size) -{ - orion_setup_cpu_win(&addr_map_cfg, win_alloc_count++, base, size, - TARGET_DEV_BUS, ATTR_DEV_BOOT, -1); -} - -void __init orion5x_setup_dev0_win(u32 base, u32 size) -{ - orion_setup_cpu_win(&addr_map_cfg, win_alloc_count++, base, size, - TARGET_DEV_BUS, ATTR_DEV_CS0, -1); -} - -void __init orion5x_setup_dev1_win(u32 base, u32 size) -{ - orion_setup_cpu_win(&addr_map_cfg, win_alloc_count++, base, size, - TARGET_DEV_BUS, ATTR_DEV_CS1, -1); -} - -void __init orion5x_setup_dev2_win(u32 base, u32 size) -{ - orion_setup_cpu_win(&addr_map_cfg, win_alloc_count++, base, size, - TARGET_DEV_BUS, ATTR_DEV_CS2, -1); -} - -void __init orion5x_setup_pcie_wa_win(u32 base, u32 size) -{ - orion_setup_cpu_win(&addr_map_cfg, win_alloc_count++, base, size, - TARGET_PCIE, ATTR_PCIE_WA, -1); -} - -void __init orion5x_setup_sram_win(void) -{ - orion_setup_cpu_win(&addr_map_cfg, win_alloc_count++, - ORION5X_SRAM_PHYS_BASE, ORION5X_SRAM_SIZE, - TARGET_SRAM, ATTR_SRAM, -1); -} diff --git a/arch/arm/mach-orion5x/board-dt.c b/arch/arm/mach-orion5x/board-dt.c index 94fbb815680..b91002ca92f 100644 --- a/arch/arm/mach-orion5x/board-dt.c +++ b/arch/arm/mach-orion5x/board-dt.c @@ -42,7 +42,7 @@ static void __init orion5x_dt_init(void) /* * Setup Orion address map */ - orion5x_setup_cpu_mbus_bridge(); + orion5x_setup_wins(); /* Setup root of clk tree */ clk_init(); diff --git a/arch/arm/mach-orion5x/common.c b/arch/arm/mach-orion5x/common.c index 2075bf8e3d9..b97fd672e89 100644 --- a/arch/arm/mach-orion5x/common.c +++ b/arch/arm/mach-orion5x/common.c @@ -35,7 +35,6 @@ #include <linux/platform_data/usb-ehci-orion.h> #include <plat/time.h> #include <plat/common.h> -#include <plat/addr-map.h> #include "common.h" /***************************************************************************** @@ -175,7 +174,8 @@ void __init orion5x_xor_init(void) ****************************************************************************/ static void __init orion5x_crypto_init(void) { - orion5x_setup_sram_win(); + mvebu_mbus_add_window("sram", ORION5X_SRAM_PHYS_BASE, + ORION5X_SRAM_SIZE); orion_crypto_init(ORION5X_CRYPTO_PHYS_BASE, ORION5X_SRAM_PHYS_BASE, SZ_8K, IRQ_ORION5X_CESA); } @@ -194,6 +194,9 @@ void __init orion5x_wdt_init(void) ****************************************************************************/ void __init orion5x_init_early(void) { + u32 rev, dev; + const char *mbus_soc_name; + orion_time_set_base(TIMER_VIRT_BASE); /* @@ -202,6 +205,46 @@ void __init orion5x_init_early(void) * the allocations won't fail. */ init_dma_coherent_pool_size(SZ_1M); + + /* Initialize the MBUS driver */ + orion5x_pcie_id(&dev, &rev); + if (dev == MV88F5281_DEV_ID) + mbus_soc_name = "marvell,orion5x-88f5281-mbus"; + else if (dev == MV88F5182_DEV_ID) + mbus_soc_name = "marvell,orion5x-88f5182-mbus"; + else if (dev == MV88F5181_DEV_ID) + mbus_soc_name = "marvell,orion5x-88f5181-mbus"; + else if (dev == MV88F6183_DEV_ID) + mbus_soc_name = "marvell,orion5x-88f6183-mbus"; + else + mbus_soc_name = NULL; + mvebu_mbus_init(mbus_soc_name, ORION5X_BRIDGE_WINS_BASE, + ORION5X_BRIDGE_WINS_SZ, + ORION5X_DDR_WINS_BASE, ORION5X_DDR_WINS_SZ); +} + +void orion5x_setup_wins(void) +{ + /* + * The PCIe windows will no longer be statically allocated + * here once Orion5x is migrated to the pci-mvebu driver. + */ + mvebu_mbus_add_window_remap_flags("pcie0.0", ORION5X_PCIE_IO_PHYS_BASE, + ORION5X_PCIE_IO_SIZE, + ORION5X_PCIE_IO_BUS_BASE, + MVEBU_MBUS_PCI_IO); + mvebu_mbus_add_window_remap_flags("pcie0.0", ORION5X_PCIE_MEM_PHYS_BASE, + ORION5X_PCIE_MEM_SIZE, + MVEBU_MBUS_NO_REMAP, + MVEBU_MBUS_PCI_MEM); + mvebu_mbus_add_window_remap_flags("pci0.0", ORION5X_PCI_IO_PHYS_BASE, + ORION5X_PCI_IO_SIZE, + ORION5X_PCI_IO_BUS_BASE, + MVEBU_MBUS_PCI_IO); + mvebu_mbus_add_window_remap_flags("pci0.0", ORION5X_PCI_MEM_PHYS_BASE, + ORION5X_PCI_MEM_SIZE, + MVEBU_MBUS_NO_REMAP, + MVEBU_MBUS_PCI_MEM); } int orion5x_tclk; @@ -283,7 +326,7 @@ void __init orion5x_init(void) /* * Setup Orion address map */ - orion5x_setup_cpu_mbus_bridge(); + orion5x_setup_wins(); /* Setup root of clk tree */ clk_init(); diff --git a/arch/arm/mach-orion5x/common.h b/arch/arm/mach-orion5x/common.h index e6034576028..cdaa01f3d18 100644 --- a/arch/arm/mach-orion5x/common.h +++ b/arch/arm/mach-orion5x/common.h @@ -17,18 +17,7 @@ void clk_init(void); extern int orion5x_tclk; extern void orion5x_timer_init(void); -/* - * Enumerations and functions for Orion windows mapping. Used by Orion core - * functions to map its interfaces and by the machine-setup to map its on- - * board devices. Details in /mach-orion/addr-map.c - */ -void orion5x_setup_cpu_mbus_bridge(void); -void orion5x_setup_dev_boot_win(u32 base, u32 size); -void orion5x_setup_dev0_win(u32 base, u32 size); -void orion5x_setup_dev1_win(u32 base, u32 size); -void orion5x_setup_dev2_win(u32 base, u32 size); -void orion5x_setup_pcie_wa_win(u32 base, u32 size); -void orion5x_setup_sram_win(void); +void orion5x_setup_wins(void); void orion5x_ehci0_init(void); void orion5x_ehci1_init(void); diff --git a/arch/arm/mach-orion5x/d2net-setup.c b/arch/arm/mach-orion5x/d2net-setup.c index 57d0af74874..16c88bbabc9 100644 --- a/arch/arm/mach-orion5x/d2net-setup.c +++ b/arch/arm/mach-orion5x/d2net-setup.c @@ -317,8 +317,8 @@ static void __init d2net_init(void) d2net_sata_power_init(); orion5x_sata_init(&d2net_sata_data); - orion5x_setup_dev_boot_win(D2NET_NOR_BOOT_BASE, - D2NET_NOR_BOOT_SIZE); + mvebu_mbus_add_window("devbus-boot", D2NET_NOR_BOOT_BASE, + D2NET_NOR_BOOT_SIZE); platform_device_register(&d2net_nor_flash); platform_device_register(&d2net_gpio_buttons); diff --git a/arch/arm/mach-orion5x/db88f5281-setup.c b/arch/arm/mach-orion5x/db88f5281-setup.c index 76665640087..4e1263da38b 100644 --- a/arch/arm/mach-orion5x/db88f5281-setup.c +++ b/arch/arm/mach-orion5x/db88f5281-setup.c @@ -340,16 +340,19 @@ static void __init db88f5281_init(void) orion5x_uart0_init(); orion5x_uart1_init(); - orion5x_setup_dev_boot_win(DB88F5281_NOR_BOOT_BASE, - DB88F5281_NOR_BOOT_SIZE); + mvebu_mbus_add_window("devbus-boot", DB88F5281_NOR_BOOT_BASE, + DB88F5281_NOR_BOOT_SIZE); platform_device_register(&db88f5281_boot_flash); - orion5x_setup_dev0_win(DB88F5281_7SEG_BASE, DB88F5281_7SEG_SIZE); + mvebu_mbus_add_window("devbus-cs0", DB88F5281_7SEG_BASE, + DB88F5281_7SEG_SIZE); - orion5x_setup_dev1_win(DB88F5281_NOR_BASE, DB88F5281_NOR_SIZE); + mvebu_mbus_add_window("devbus-cs1", DB88F5281_NOR_BASE, + DB88F5281_NOR_SIZE); platform_device_register(&db88f5281_nor_flash); - orion5x_setup_dev2_win(DB88F5281_NAND_BASE, DB88F5281_NAND_SIZE); + mvebu_mbus_add_window("devbus-cs2", DB88F5281_NAND_BASE, + DB88F5281_NAND_SIZE); platform_device_register(&db88f5281_nand_flash); i2c_register_board_info(0, &db88f5281_i2c_rtc, 1); diff --git a/arch/arm/mach-orion5x/dns323-setup.c b/arch/arm/mach-orion5x/dns323-setup.c index 6eb1732757f..9e6baf581ed 100644 --- a/arch/arm/mach-orion5x/dns323-setup.c +++ b/arch/arm/mach-orion5x/dns323-setup.c @@ -611,7 +611,8 @@ static void __init dns323_init(void) /* setup flash mapping * CS3 holds a 8 MB Spansion S29GL064M90TFIR4 */ - orion5x_setup_dev_boot_win(DNS323_NOR_BOOT_BASE, DNS323_NOR_BOOT_SIZE); + mvebu_mbus_add_window("devbus-boot", DNS323_NOR_BOOT_BASE, + DNS323_NOR_BOOT_SIZE); platform_device_register(&dns323_nor_flash); /* Sort out LEDs, Buttons and i2c devices */ diff --git a/arch/arm/mach-orion5x/edmini_v2-setup.c b/arch/arm/mach-orion5x/edmini_v2-setup.c index d675e727803..147615510dd 100644 --- a/arch/arm/mach-orion5x/edmini_v2-setup.c +++ b/arch/arm/mach-orion5x/edmini_v2-setup.c @@ -154,8 +154,8 @@ void __init edmini_v2_init(void) orion5x_ehci0_init(); orion5x_eth_init(&edmini_v2_eth_data); - orion5x_setup_dev_boot_win(EDMINI_V2_NOR_BOOT_BASE, - EDMINI_V2_NOR_BOOT_SIZE); + mvebu_mbus_add_window("devbus-boot", EDMINI_V2_NOR_BOOT_BASE, + EDMINI_V2_NOR_BOOT_SIZE); platform_device_register(&edmini_v2_nor_flash); pr_notice("edmini_v2: USB device port, flash write and power-off " diff --git a/arch/arm/mach-orion5x/include/mach/orion5x.h b/arch/arm/mach-orion5x/include/mach/orion5x.h index d265f5484a8..b78ff324886 100644 --- a/arch/arm/mach-orion5x/include/mach/orion5x.h +++ b/arch/arm/mach-orion5x/include/mach/orion5x.h @@ -66,8 +66,10 @@ * Orion Registers Map ******************************************************************************/ +#define ORION5X_DDR_PHYS_BASE (ORION5X_REGS_PHYS_BASE + 0x00000) +#define ORION5X_DDR_WINS_BASE (ORION5X_DDR_PHYS_BASE + 0x1500) +#define ORION5X_DDR_WINS_SZ (0x10) #define ORION5X_DDR_VIRT_BASE (ORION5X_REGS_VIRT_BASE + 0x00000) -#define ORION5X_DDR_WINDOW_CPU_BASE (ORION5X_DDR_VIRT_BASE + 0x1500) #define ORION5X_DEV_BUS_PHYS_BASE (ORION5X_REGS_PHYS_BASE + 0x10000) #define ORION5X_DEV_BUS_VIRT_BASE (ORION5X_REGS_VIRT_BASE + 0x10000) #define ORION5X_DEV_BUS_REG(x) (ORION5X_DEV_BUS_VIRT_BASE + (x)) @@ -81,6 +83,8 @@ #define ORION5X_BRIDGE_VIRT_BASE (ORION5X_REGS_VIRT_BASE + 0x20000) #define ORION5X_BRIDGE_PHYS_BASE (ORION5X_REGS_PHYS_BASE + 0x20000) +#define ORION5X_BRIDGE_WINS_BASE (ORION5X_BRIDGE_PHYS_BASE) +#define ORION5X_BRIDGE_WINS_SZ (0x80) #define ORION5X_PCI_VIRT_BASE (ORION5X_REGS_VIRT_BASE + 0x30000) diff --git a/arch/arm/mach-orion5x/kurobox_pro-setup.c b/arch/arm/mach-orion5x/kurobox_pro-setup.c index b9840352621..aae10e4a917 100644 --- a/arch/arm/mach-orion5x/kurobox_pro-setup.c +++ b/arch/arm/mach-orion5x/kurobox_pro-setup.c @@ -359,13 +359,13 @@ static void __init kurobox_pro_init(void) orion5x_uart1_init(); orion5x_xor_init(); - orion5x_setup_dev_boot_win(KUROBOX_PRO_NOR_BOOT_BASE, - KUROBOX_PRO_NOR_BOOT_SIZE); + mvebu_mbus_add_window("devbus-boot", KUROBOX_PRO_NOR_BOOT_BASE, + KUROBOX_PRO_NOR_BOOT_SIZE); platform_device_register(&kurobox_pro_nor_flash); if (machine_is_kurobox_pro()) { - orion5x_setup_dev0_win(KUROBOX_PRO_NAND_BASE, - KUROBOX_PRO_NAND_SIZE); + mvebu_mbus_add_window("devbus-cs0", KUROBOX_PRO_NAND_BASE, + KUROBOX_PRO_NAND_SIZE); platform_device_register(&kurobox_pro_nand_flash); } diff --git a/arch/arm/mach-orion5x/ls-chl-setup.c b/arch/arm/mach-orion5x/ls-chl-setup.c index 044da5b6a6a..24f4e14e589 100644 --- a/arch/arm/mach-orion5x/ls-chl-setup.c +++ b/arch/arm/mach-orion5x/ls-chl-setup.c @@ -294,8 +294,8 @@ static void __init lschl_init(void) orion5x_uart0_init(); orion5x_xor_init(); - orion5x_setup_dev_boot_win(LSCHL_NOR_BOOT_BASE, - LSCHL_NOR_BOOT_SIZE); + mvebu_mbus_add_window("devbus-boot", LSCHL_NOR_BOOT_BASE, + LSCHL_NOR_BOOT_SIZE); platform_device_register(&lschl_nor_flash); platform_device_register(&lschl_leds); diff --git a/arch/arm/mach-orion5x/ls_hgl-setup.c b/arch/arm/mach-orion5x/ls_hgl-setup.c index d49f93423f5..fc653bb41e7 100644 --- a/arch/arm/mach-orion5x/ls_hgl-setup.c +++ b/arch/arm/mach-orion5x/ls_hgl-setup.c @@ -243,8 +243,8 @@ static void __init ls_hgl_init(void) orion5x_uart0_init(); orion5x_xor_init(); - orion5x_setup_dev_boot_win(LS_HGL_NOR_BOOT_BASE, - LS_HGL_NOR_BOOT_SIZE); + mvebu_mbus_add_window("devbus-boot", LS_HGL_NOR_BOOT_BASE, + LS_HGL_NOR_BOOT_SIZE); platform_device_register(&ls_hgl_nor_flash); platform_device_register(&ls_hgl_button_device); diff --git a/arch/arm/mach-orion5x/lsmini-setup.c b/arch/arm/mach-orion5x/lsmini-setup.c index 8e3965c6c0f..18e66e617dc 100644 --- a/arch/arm/mach-orion5x/lsmini-setup.c +++ b/arch/arm/mach-orion5x/lsmini-setup.c @@ -244,8 +244,8 @@ static void __init lsmini_init(void) orion5x_uart0_init(); orion5x_xor_init(); - orion5x_setup_dev_boot_win(LSMINI_NOR_BOOT_BASE, - LSMINI_NOR_BOOT_SIZE); + mvebu_mbus_add_window("devbus-boot", LSMINI_NOR_BOOT_BASE, + LSMINI_NOR_BOOT_SIZE); platform_device_register(&lsmini_nor_flash); platform_device_register(&lsmini_button_device); diff --git a/arch/arm/mach-orion5x/mss2-setup.c b/arch/arm/mach-orion5x/mss2-setup.c index 0ec94a1f2b1..827acbafc9d 100644 --- a/arch/arm/mach-orion5x/mss2-setup.c +++ b/arch/arm/mach-orion5x/mss2-setup.c @@ -241,7 +241,8 @@ static void __init mss2_init(void) orion5x_uart0_init(); orion5x_xor_init(); - orion5x_setup_dev_boot_win(MSS2_NOR_BOOT_BASE, MSS2_NOR_BOOT_SIZE); + mvebu_mbus_add_window("devbus-boot", MSS2_NOR_BOOT_BASE, + MSS2_NOR_BOOT_SIZE); platform_device_register(&mss2_nor_flash); platform_device_register(&mss2_button_device); diff --git a/arch/arm/mach-orion5x/mv2120-setup.c b/arch/arm/mach-orion5x/mv2120-setup.c index 18143f2a909..92600ae2b4b 100644 --- a/arch/arm/mach-orion5x/mv2120-setup.c +++ b/arch/arm/mach-orion5x/mv2120-setup.c @@ -204,7 +204,8 @@ static void __init mv2120_init(void) orion5x_uart0_init(); orion5x_xor_init(); - orion5x_setup_dev_boot_win(MV2120_NOR_BOOT_BASE, MV2120_NOR_BOOT_SIZE); + mvebu_mbus_add_window("devbus-boot", MV2120_NOR_BOOT_BASE, + MV2120_NOR_BOOT_SIZE); platform_device_register(&mv2120_nor_flash); platform_device_register(&mv2120_button_device); diff --git a/arch/arm/mach-orion5x/net2big-setup.c b/arch/arm/mach-orion5x/net2big-setup.c index 282e503b003..dd0641a0d07 100644 --- a/arch/arm/mach-orion5x/net2big-setup.c +++ b/arch/arm/mach-orion5x/net2big-setup.c @@ -397,8 +397,8 @@ static void __init net2big_init(void) net2big_sata_power_init(); orion5x_sata_init(&net2big_sata_data); - orion5x_setup_dev_boot_win(NET2BIG_NOR_BOOT_BASE, - NET2BIG_NOR_BOOT_SIZE); + mvebu_mbus_add_window("devbus-boot", NET2BIG_NOR_BOOT_BASE, + NET2BIG_NOR_BOOT_SIZE); platform_device_register(&net2big_nor_flash); platform_device_register(&net2big_gpio_buttons); diff --git a/arch/arm/mach-orion5x/pci.c b/arch/arm/mach-orion5x/pci.c index 973db98a3c2..503368023bb 100644 --- a/arch/arm/mach-orion5x/pci.c +++ b/arch/arm/mach-orion5x/pci.c @@ -157,8 +157,11 @@ static int __init pcie_setup(struct pci_sys_data *sys) if (dev == MV88F5181_DEV_ID || dev == MV88F5182_DEV_ID) { printk(KERN_NOTICE "Applying Orion-1/Orion-NAS PCIe config " "read transaction workaround\n"); - orion5x_setup_pcie_wa_win(ORION5X_PCIE_WA_PHYS_BASE, - ORION5X_PCIE_WA_SIZE); + mvebu_mbus_add_window_remap_flags("pcie0.0", + ORION5X_PCIE_WA_PHYS_BASE, + ORION5X_PCIE_WA_SIZE, + MVEBU_MBUS_NO_REMAP, + MVEBU_MBUS_PCI_WA); pcie_ops.read = pcie_rd_conf_wa; } diff --git a/arch/arm/mach-orion5x/rd88f5181l-fxo-setup.c b/arch/arm/mach-orion5x/rd88f5181l-fxo-setup.c index d6e72f672af..1c4498bf650 100644 --- a/arch/arm/mach-orion5x/rd88f5181l-fxo-setup.c +++ b/arch/arm/mach-orion5x/rd88f5181l-fxo-setup.c @@ -123,8 +123,8 @@ static void __init rd88f5181l_fxo_init(void) orion5x_eth_switch_init(&rd88f5181l_fxo_switch_plat_data, NO_IRQ); orion5x_uart0_init(); - orion5x_setup_dev_boot_win(RD88F5181L_FXO_NOR_BOOT_BASE, - RD88F5181L_FXO_NOR_BOOT_SIZE); + mvebu_mbus_add_window("devbus-boot", RD88F5181L_FXO_NOR_BOOT_BASE, + RD88F5181L_FXO_NOR_BOOT_SIZE); platform_device_register(&rd88f5181l_fxo_nor_boot_flash); } diff --git a/arch/arm/mach-orion5x/rd88f5181l-ge-setup.c b/arch/arm/mach-orion5x/rd88f5181l-ge-setup.c index c8b7913310e..adabe34c4fc 100644 --- a/arch/arm/mach-orion5x/rd88f5181l-ge-setup.c +++ b/arch/arm/mach-orion5x/rd88f5181l-ge-setup.c @@ -130,8 +130,8 @@ static void __init rd88f5181l_ge_init(void) orion5x_i2c_init(); orion5x_uart0_init(); - orion5x_setup_dev_boot_win(RD88F5181L_GE_NOR_BOOT_BASE, - RD88F5181L_GE_NOR_BOOT_SIZE); + mvebu_mbus_add_window("devbus-boot", RD88F5181L_GE_NOR_BOOT_BASE, + RD88F5181L_GE_NOR_BOOT_SIZE); platform_device_register(&rd88f5181l_ge_nor_boot_flash); i2c_register_board_info(0, &rd88f5181l_ge_i2c_rtc, 1); diff --git a/arch/arm/mach-orion5x/rd88f5182-setup.c b/arch/arm/mach-orion5x/rd88f5182-setup.c index f9e156725d7..66e77ec9153 100644 --- a/arch/arm/mach-orion5x/rd88f5182-setup.c +++ b/arch/arm/mach-orion5x/rd88f5182-setup.c @@ -264,10 +264,11 @@ static void __init rd88f5182_init(void) orion5x_uart0_init(); orion5x_xor_init(); - orion5x_setup_dev_boot_win(RD88F5182_NOR_BOOT_BASE, - RD88F5182_NOR_BOOT_SIZE); + mvebu_mbus_add_window("devbus-boot", RD88F5182_NOR_BOOT_BASE, + RD88F5182_NOR_BOOT_SIZE); - orion5x_setup_dev1_win(RD88F5182_NOR_BASE, RD88F5182_NOR_SIZE); + mvebu_mbus_add_window("devbus-cs1", RD88F5182_NOR_BASE, + RD88F5182_NOR_SIZE); platform_device_register(&rd88f5182_nor_flash); platform_device_register(&rd88f5182_gpio_leds); diff --git a/arch/arm/mach-orion5x/terastation_pro2-setup.c b/arch/arm/mach-orion5x/terastation_pro2-setup.c index acc0877ec1c..a0bfa53e755 100644 --- a/arch/arm/mach-orion5x/terastation_pro2-setup.c +++ b/arch/arm/mach-orion5x/terastation_pro2-setup.c @@ -329,8 +329,8 @@ static void __init tsp2_init(void) /* * Configure peripherals. */ - orion5x_setup_dev_boot_win(TSP2_NOR_BOOT_BASE, - TSP2_NOR_BOOT_SIZE); + mvebu_mbus_add_window("devbus-boot", TSP2_NOR_BOOT_BASE, + TSP2_NOR_BOOT_SIZE); platform_device_register(&tsp2_nor_flash); orion5x_ehci0_init(); diff --git a/arch/arm/mach-orion5x/ts209-setup.c b/arch/arm/mach-orion5x/ts209-setup.c index 9c17f0c2b48..80174f0f168 100644 --- a/arch/arm/mach-orion5x/ts209-setup.c +++ b/arch/arm/mach-orion5x/ts209-setup.c @@ -286,8 +286,8 @@ static void __init qnap_ts209_init(void) /* * Configure peripherals. */ - orion5x_setup_dev_boot_win(QNAP_TS209_NOR_BOOT_BASE, - QNAP_TS209_NOR_BOOT_SIZE); + mvebu_mbus_add_window("devbus-boot", QNAP_TS209_NOR_BOOT_BASE, + QNAP_TS209_NOR_BOOT_SIZE); platform_device_register(&qnap_ts209_nor_flash); orion5x_ehci0_init(); diff --git a/arch/arm/mach-orion5x/ts409-setup.c b/arch/arm/mach-orion5x/ts409-setup.c index 8cc5ab6c503..92592790d6d 100644 --- a/arch/arm/mach-orion5x/ts409-setup.c +++ b/arch/arm/mach-orion5x/ts409-setup.c @@ -277,8 +277,8 @@ static void __init qnap_ts409_init(void) /* * Configure peripherals. */ - orion5x_setup_dev_boot_win(QNAP_TS409_NOR_BOOT_BASE, - QNAP_TS409_NOR_BOOT_SIZE); + mvebu_mbus_add_window("devbus-boot", QNAP_TS409_NOR_BOOT_BASE, + QNAP_TS409_NOR_BOOT_SIZE); platform_device_register(&qnap_ts409_nor_flash); orion5x_ehci0_init(); diff --git a/arch/arm/mach-orion5x/wnr854t-setup.c b/arch/arm/mach-orion5x/wnr854t-setup.c index 66552ca7e05..6b84863c018 100644 --- a/arch/arm/mach-orion5x/wnr854t-setup.c +++ b/arch/arm/mach-orion5x/wnr854t-setup.c @@ -127,8 +127,8 @@ static void __init wnr854t_init(void) orion5x_eth_switch_init(&wnr854t_switch_plat_data, NO_IRQ); orion5x_uart0_init(); - orion5x_setup_dev_boot_win(WNR854T_NOR_BOOT_BASE, - WNR854T_NOR_BOOT_SIZE); + mvebu_mbus_add_window("devbus-boot", WNR854T_NOR_BOOT_BASE, + WNR854T_NOR_BOOT_SIZE); platform_device_register(&wnr854t_nor_flash); } diff --git a/arch/arm/mach-orion5x/wrt350n-v2-setup.c b/arch/arm/mach-orion5x/wrt350n-v2-setup.c index 2c5408e2e68..fae684bc54f 100644 --- a/arch/arm/mach-orion5x/wrt350n-v2-setup.c +++ b/arch/arm/mach-orion5x/wrt350n-v2-setup.c @@ -213,8 +213,8 @@ static void __init wrt350n_v2_init(void) orion5x_eth_switch_init(&wrt350n_v2_switch_plat_data, NO_IRQ); orion5x_uart0_init(); - orion5x_setup_dev_boot_win(WRT350N_V2_NOR_BOOT_BASE, - WRT350N_V2_NOR_BOOT_SIZE); + mvebu_mbus_add_window("devbus-boot", WRT350N_V2_NOR_BOOT_BASE, + WRT350N_V2_NOR_BOOT_SIZE); platform_device_register(&wrt350n_v2_nor_flash); platform_device_register(&wrt350n_v2_leds); platform_device_register(&wrt350n_v2_button_device); diff --git a/arch/arm/mach-shmobile/clock-r8a7779.c b/arch/arm/mach-shmobile/clock-r8a7779.c index 7d86bfbb5b0..31d5cd4d978 100644 --- a/arch/arm/mach-shmobile/clock-r8a7779.c +++ b/arch/arm/mach-shmobile/clock-r8a7779.c @@ -26,6 +26,25 @@ #include <mach/clock.h> #include <mach/common.h> +/* + * MD1 = 1 MD1 = 0 + * (PLLA = 1500) (PLLA = 1600) + * (MHz) (MHz) + *------------------------------------------------+-------------------- + * clkz 1000 (2/3) 800 (1/2) + * clkzs 250 (1/6) 200 (1/8) + * clki 750 (1/2) 800 (1/2) + * clks 250 (1/6) 200 (1/8) + * clks1 125 (1/12) 100 (1/16) + * clks3 187.5 (1/8) 200 (1/8) + * clks4 93.7 (1/16) 100 (1/16) + * clkp 62.5 (1/24) 50 (1/32) + * clkg 62.5 (1/24) 66.6 (1/24) + * clkb, CLKOUT + * (MD2 = 0) 62.5 (1/24) 66.6 (1/24) + * (MD2 = 1) 41.6 (1/36) 50 (1/32) +*/ + #define MD(nr) BIT(nr) #define FRQMR IOMEM(0xffc80014) @@ -93,7 +112,7 @@ static struct clk *main_clks[] = { }; enum { MSTP323, MSTP322, MSTP321, MSTP320, - MSTP115, + MSTP115, MSTP114, MSTP103, MSTP101, MSTP100, MSTP030, MSTP029, MSTP028, MSTP027, MSTP026, MSTP025, MSTP024, MSTP023, MSTP022, MSTP021, @@ -107,6 +126,7 @@ static struct clk mstp_clks[MSTP_NR] = { [MSTP321] = SH_CLK_MSTP32(&clkp_clk, MSTPCR3, 21, 0), /* SDHI2 */ [MSTP320] = SH_CLK_MSTP32(&clkp_clk, MSTPCR3, 20, 0), /* SDHI3 */ [MSTP115] = SH_CLK_MSTP32(&clkp_clk, MSTPCR1, 15, 0), /* SATA */ + [MSTP114] = SH_CLK_MSTP32(&clkp_clk, MSTPCR1, 14, 0), /* Ether */ [MSTP103] = SH_CLK_MSTP32(&clks_clk, MSTPCR1, 3, 0), /* DU */ [MSTP101] = SH_CLK_MSTP32(&clkp_clk, MSTPCR1, 1, 0), /* USB2 */ [MSTP100] = SH_CLK_MSTP32(&clkp_clk, MSTPCR1, 0, 0), /* USB0/1 */ @@ -143,6 +163,7 @@ static struct clk_lookup lookups[] = { /* MSTP32 clocks */ CLKDEV_DEV_ID("sata_rcar", &mstp_clks[MSTP115]), /* SATA */ CLKDEV_DEV_ID("fc600000.sata", &mstp_clks[MSTP115]), /* SATA w/DT */ + CLKDEV_DEV_ID("sh-eth", &mstp_clks[MSTP114]), /* Ether */ CLKDEV_DEV_ID("ehci-platform.1", &mstp_clks[MSTP101]), /* USB EHCI port2 */ CLKDEV_DEV_ID("ohci-platform.1", &mstp_clks[MSTP101]), /* USB OHCI port2 */ CLKDEV_DEV_ID("ehci-platform.0", &mstp_clks[MSTP100]), /* USB EHCI port0/1 */ diff --git a/arch/arm/mach-shmobile/include/mach/r8a7779.h b/arch/arm/mach-shmobile/include/mach/r8a7779.h index 945299ed163..188b295938a 100644 --- a/arch/arm/mach-shmobile/include/mach/r8a7779.h +++ b/arch/arm/mach-shmobile/include/mach/r8a7779.h @@ -3,6 +3,7 @@ #include <linux/sh_clk.h> #include <linux/pm_domain.h> +#include <linux/sh_eth.h> struct platform_device; @@ -31,6 +32,7 @@ extern void r8a7779_earlytimer_init(void); extern void r8a7779_add_early_devices(void); extern void r8a7779_add_standard_devices(void); extern void r8a7779_add_standard_devices_dt(void); +extern void r8a7779_add_ether_device(struct sh_eth_plat_data *pdata); extern void r8a7779_clock_init(void); extern void r8a7779_pinmux_init(void); extern void r8a7779_pm_init(void); diff --git a/arch/arm/mach-shmobile/setup-r8a7779.c b/arch/arm/mach-shmobile/setup-r8a7779.c index a460ba3dedc..b0b394842ea 100644 --- a/arch/arm/mach-shmobile/setup-r8a7779.c +++ b/arch/arm/mach-shmobile/setup-r8a7779.c @@ -1,8 +1,9 @@ /* * r8a7779 processor support * - * Copyright (C) 2011 Renesas Solutions Corp. + * Copyright (C) 2011, 2013 Renesas Solutions Corp. * Copyright (C) 2011 Magnus Damm + * Copyright (C) 2013 Cogent Embedded, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -393,6 +394,18 @@ static struct platform_device sata_device = { }, }; +/* Ether */ +static struct resource ether_resources[] = { + { + .start = 0xfde00000, + .end = 0xfde003ff, + .flags = IORESOURCE_MEM, + }, { + .start = gic_iid(0xb4), + .flags = IORESOURCE_IRQ, + }, +}; + static struct platform_device *r8a7779_devices_dt[] __initdata = { &scif0_device, &scif1_device, @@ -428,6 +441,14 @@ void __init r8a7779_add_standard_devices(void) ARRAY_SIZE(r8a7779_late_devices)); } +void __init r8a7779_add_ether_device(struct sh_eth_plat_data *pdata) +{ + platform_device_register_resndata(&platform_bus, "sh_eth", -1, + ether_resources, + ARRAY_SIZE(ether_resources), + pdata, sizeof(*pdata)); +} + /* do nothing for !CONFIG_SMP or !CONFIG_HAVE_TWD */ void __init __weak r8a7779_register_twd(void) { } diff --git a/arch/arm/mach-zynq/Kconfig b/arch/arm/mach-zynq/Kconfig index cf3226b041f..c1d61f281e6 100644 --- a/arch/arm/mach-zynq/Kconfig +++ b/arch/arm/mach-zynq/Kconfig @@ -10,6 +10,7 @@ config ARCH_ZYNQ select ICST select MIGHT_HAVE_CACHE_L2X0 select USE_OF + select HAVE_SMP select SPARSE_IRQ select CADENCE_TTC_TIMER help diff --git a/arch/arm/mach-zynq/Makefile b/arch/arm/mach-zynq/Makefile index 320faedeb48..1b25d92ebf2 100644 --- a/arch/arm/mach-zynq/Makefile +++ b/arch/arm/mach-zynq/Makefile @@ -3,4 +3,8 @@ # # Common support -obj-y := common.o +obj-y := common.o slcr.o +CFLAGS_REMOVE_hotplug.o =-march=armv6k +CFLAGS_hotplug.o =-Wa,-march=armv7-a -mcpu=cortex-a9 +obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o +obj-$(CONFIG_SMP) += headsmp.o platsmp.o diff --git a/arch/arm/mach-zynq/common.c b/arch/arm/mach-zynq/common.c index 68e0907de5d..5bfe7035b73 100644 --- a/arch/arm/mach-zynq/common.c +++ b/arch/arm/mach-zynq/common.c @@ -33,20 +33,23 @@ #include <asm/mach-types.h> #include <asm/page.h> #include <asm/pgtable.h> +#include <asm/smp_scu.h> #include <asm/hardware/cache-l2x0.h> #include "common.h" +void __iomem *zynq_scu_base; + static struct of_device_id zynq_of_bus_ids[] __initdata = { { .compatible = "simple-bus", }, {} }; /** - * xilinx_init_machine() - System specific initialization, intended to be - * called from board specific initialization. + * zynq_init_machine - System specific initialization, intended to be + * called from board specific initialization. */ -static void __init xilinx_init_machine(void) +static void __init zynq_init_machine(void) { /* * 64KB way size, 8-way associativity, parity disabled @@ -56,50 +59,56 @@ static void __init xilinx_init_machine(void) of_platform_bus_probe(NULL, zynq_of_bus_ids, NULL); } -#define SCU_PERIPH_PHYS 0xF8F00000 -#define SCU_PERIPH_SIZE SZ_8K -#define SCU_PERIPH_VIRT (VMALLOC_END - SCU_PERIPH_SIZE) +static void __init zynq_timer_init(void) +{ + zynq_slcr_init(); + clocksource_of_init(); +} -static struct map_desc scu_desc __initdata = { - .virtual = SCU_PERIPH_VIRT, - .pfn = __phys_to_pfn(SCU_PERIPH_PHYS), - .length = SCU_PERIPH_SIZE, - .type = MT_DEVICE, +static struct map_desc zynq_cortex_a9_scu_map __initdata = { + .length = SZ_256, + .type = MT_DEVICE, }; -static void __init xilinx_zynq_timer_init(void) +static void __init zynq_scu_map_io(void) { - struct device_node *np; - void __iomem *slcr; - - np = of_find_compatible_node(NULL, NULL, "xlnx,zynq-slcr"); - slcr = of_iomap(np, 0); - WARN_ON(!slcr); + unsigned long base; - xilinx_zynq_clocks_init(slcr); - - clocksource_of_init(); + base = scu_a9_get_base(); + zynq_cortex_a9_scu_map.pfn = __phys_to_pfn(base); + /* Expected address is in vmalloc area that's why simple assign here */ + zynq_cortex_a9_scu_map.virtual = base; + iotable_init(&zynq_cortex_a9_scu_map, 1); + zynq_scu_base = (void __iomem *)base; + BUG_ON(!zynq_scu_base); } /** - * xilinx_map_io() - Create memory mappings needed for early I/O. + * zynq_map_io - Create memory mappings needed for early I/O. */ -static void __init xilinx_map_io(void) +static void __init zynq_map_io(void) { debug_ll_io_init(); - iotable_init(&scu_desc, 1); + zynq_scu_map_io(); +} + +static void zynq_system_reset(char mode, const char *cmd) +{ + zynq_slcr_system_reset(); } -static const char *xilinx_dt_match[] = { +static const char * const zynq_dt_match[] = { "xlnx,zynq-zc702", "xlnx,zynq-7000", NULL }; MACHINE_START(XILINX_EP107, "Xilinx Zynq Platform") - .map_io = xilinx_map_io, + .smp = smp_ops(zynq_smp_ops), + .map_io = zynq_map_io, .init_irq = irqchip_init, - .init_machine = xilinx_init_machine, - .init_time = xilinx_zynq_timer_init, - .dt_compat = xilinx_dt_match, + .init_machine = zynq_init_machine, + .init_time = zynq_timer_init, + .dt_compat = zynq_dt_match, + .restart = zynq_system_reset, MACHINE_END diff --git a/arch/arm/mach-zynq/common.h b/arch/arm/mach-zynq/common.h index 5050bb10bb1..fbbd0e21c40 100644 --- a/arch/arm/mach-zynq/common.h +++ b/arch/arm/mach-zynq/common.h @@ -17,4 +17,24 @@ #ifndef __MACH_ZYNQ_COMMON_H__ #define __MACH_ZYNQ_COMMON_H__ +extern int zynq_slcr_init(void); +extern void zynq_slcr_system_reset(void); +extern void zynq_slcr_cpu_stop(int cpu); +extern void zynq_slcr_cpu_start(int cpu); + +#ifdef CONFIG_SMP +extern void secondary_startup(void); +extern char zynq_secondary_trampoline; +extern char zynq_secondary_trampoline_jump; +extern char zynq_secondary_trampoline_end; +extern int __cpuinit zynq_cpun_start(u32 address, int cpu); +extern struct smp_operations zynq_smp_ops __initdata; +#endif + +extern void __iomem *zynq_slcr_base; +extern void __iomem *zynq_scu_base; + +/* Hotplug */ +extern void zynq_platform_cpu_die(unsigned int cpu); + #endif diff --git a/arch/arm/mach-zynq/headsmp.S b/arch/arm/mach-zynq/headsmp.S new file mode 100644 index 00000000000..d183cd234a9 --- /dev/null +++ b/arch/arm/mach-zynq/headsmp.S @@ -0,0 +1,24 @@ +/* + * Copyright (c) 2013 Steffen Trumtrar <s.trumtrar@pengutronix.de> + * Copyright (c) 2012-2013 Xilinx + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/linkage.h> +#include <linux/init.h> + + __CPUINIT + +ENTRY(zynq_secondary_trampoline) + ldr r0, [pc] + bx r0 +.globl zynq_secondary_trampoline_jump +zynq_secondary_trampoline_jump: + /* Space for jumping address */ + .word /* cpu 1 */ +.globl zynq_secondary_trampoline_end +zynq_secondary_trampoline_end: + +ENDPROC(zynq_secondary_trampoline) diff --git a/arch/arm/mach-zynq/hotplug.c b/arch/arm/mach-zynq/hotplug.c new file mode 100644 index 00000000000..c89672bd1de --- /dev/null +++ b/arch/arm/mach-zynq/hotplug.c @@ -0,0 +1,104 @@ +/* + * Copyright (C) 2012-2013 Xilinx + * + * based on linux/arch/arm/mach-realview/hotplug.c + * + * Copyright (C) 2002 ARM Ltd. + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/smp.h> + +#include <asm/cacheflush.h> +#include <asm/cp15.h> +#include "common.h" + +static inline void zynq_cpu_enter_lowpower(void) +{ + unsigned int v; + + flush_cache_all(); + asm volatile( + " mcr p15, 0, %1, c7, c5, 0\n" + " dsb\n" + /* + * Turn off coherency + */ + " mrc p15, 0, %0, c1, c0, 1\n" + " bic %0, %0, #0x40\n" + " mcr p15, 0, %0, c1, c0, 1\n" + " mrc p15, 0, %0, c1, c0, 0\n" + " bic %0, %0, %2\n" + " mcr p15, 0, %0, c1, c0, 0\n" + : "=&r" (v) + : "r" (0), "Ir" (CR_C) + : "cc"); +} + +static inline void zynq_cpu_leave_lowpower(void) +{ + unsigned int v; + + asm volatile( + " mrc p15, 0, %0, c1, c0, 0\n" + " orr %0, %0, %1\n" + " mcr p15, 0, %0, c1, c0, 0\n" + " mrc p15, 0, %0, c1, c0, 1\n" + " orr %0, %0, #0x40\n" + " mcr p15, 0, %0, c1, c0, 1\n" + : "=&r" (v) + : "Ir" (CR_C) + : "cc"); +} + +static inline void zynq_platform_do_lowpower(unsigned int cpu, int *spurious) +{ + /* + * there is no power-control hardware on this platform, so all + * we can do is put the core into WFI; this is safe as the calling + * code will have already disabled interrupts + */ + for (;;) { + dsb(); + wfi(); + + /* + * Getting here, means that we have come out of WFI without + * having been woken up - this shouldn't happen + * + * Just note it happening - when we're woken, we can report + * its occurrence. + */ + (*spurious)++; + } +} + +/* + * platform-specific code to shutdown a CPU + * + * Called with IRQs disabled + */ +void zynq_platform_cpu_die(unsigned int cpu) +{ + int spurious = 0; + + /* + * we're ready for shutdown now, so do it + */ + zynq_cpu_enter_lowpower(); + zynq_platform_do_lowpower(cpu, &spurious); + + /* + * bring this CPU back into the world of cache + * coherency, and then restore interrupts + */ + zynq_cpu_leave_lowpower(); + + if (spurious) + pr_warn("CPU%u: %u spurious wakeup calls\n", cpu, spurious); +} diff --git a/arch/arm/mach-zynq/platsmp.c b/arch/arm/mach-zynq/platsmp.c new file mode 100644 index 00000000000..5fc167e0761 --- /dev/null +++ b/arch/arm/mach-zynq/platsmp.c @@ -0,0 +1,136 @@ +/* + * This file contains Xilinx specific SMP code, used to start up + * the second processor. + * + * Copyright (C) 2011-2013 Xilinx + * + * based on linux/arch/arm/mach-realview/platsmp.c + * + * Copyright (C) 2002 ARM Ltd. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/export.h> +#include <linux/jiffies.h> +#include <linux/init.h> +#include <linux/io.h> +#include <asm/cacheflush.h> +#include <asm/smp_scu.h> +#include <linux/irqchip/arm-gic.h> +#include "common.h" + +/* + * Store number of cores in the system + * Because of scu_get_core_count() must be in __init section and can't + * be called from zynq_cpun_start() because it is in __cpuinit section. + */ +static int ncores; + +int __cpuinit zynq_cpun_start(u32 address, int cpu) +{ + u32 trampoline_code_size = &zynq_secondary_trampoline_end - + &zynq_secondary_trampoline; + + if (cpu > ncores) { + pr_warn("CPU No. is not available in the system\n"); + return -1; + } + + /* MS: Expectation that SLCR are directly map and accessible */ + /* Not possible to jump to non aligned address */ + if (!(address & 3) && (!address || (address >= trampoline_code_size))) { + /* Store pointer to ioremap area which points to address 0x0 */ + static u8 __iomem *zero; + u32 trampoline_size = &zynq_secondary_trampoline_jump - + &zynq_secondary_trampoline; + + zynq_slcr_cpu_stop(cpu); + + if (__pa(PAGE_OFFSET)) { + zero = ioremap(0, trampoline_code_size); + if (!zero) { + pr_warn("BOOTUP jump vectors not accessible\n"); + return -1; + } + } else { + zero = (__force u8 __iomem *)PAGE_OFFSET; + } + + /* + * This is elegant way how to jump to any address + * 0x0: Load address at 0x8 to r0 + * 0x4: Jump by mov instruction + * 0x8: Jumping address + */ + memcpy((__force void *)zero, &zynq_secondary_trampoline, + trampoline_size); + writel(address, zero + trampoline_size); + + flush_cache_all(); + outer_flush_range(0, trampoline_code_size); + smp_wmb(); + + if (__pa(PAGE_OFFSET)) + iounmap(zero); + + zynq_slcr_cpu_start(cpu); + + return 0; + } + + pr_warn("Can't start CPU%d: Wrong starting address %x\n", cpu, address); + + return -1; +} +EXPORT_SYMBOL(zynq_cpun_start); + +static int __cpuinit zynq_boot_secondary(unsigned int cpu, + struct task_struct *idle) +{ + return zynq_cpun_start(virt_to_phys(secondary_startup), cpu); +} + +/* + * Initialise the CPU possible map early - this describes the CPUs + * which may be present or become present in the system. + */ +static void __init zynq_smp_init_cpus(void) +{ + int i; + + ncores = scu_get_core_count(zynq_scu_base); + + for (i = 0; i < ncores && i < CONFIG_NR_CPUS; i++) + set_cpu_possible(i, true); +} + +static void __init zynq_smp_prepare_cpus(unsigned int max_cpus) +{ + int i; + + /* + * Initialise the present map, which describes the set of CPUs + * actually populated at the present time. + */ + for (i = 0; i < max_cpus; i++) + set_cpu_present(i, true); + + scu_enable(zynq_scu_base); +} + +struct smp_operations zynq_smp_ops __initdata = { + .smp_init_cpus = zynq_smp_init_cpus, + .smp_prepare_cpus = zynq_smp_prepare_cpus, + .smp_boot_secondary = zynq_boot_secondary, +#ifdef CONFIG_HOTPLUG_CPU + .cpu_die = zynq_platform_cpu_die, +#endif +}; diff --git a/arch/arm/mach-zynq/slcr.c b/arch/arm/mach-zynq/slcr.c new file mode 100644 index 00000000000..c70969b9c25 --- /dev/null +++ b/arch/arm/mach-zynq/slcr.c @@ -0,0 +1,125 @@ +/* + * Xilinx SLCR driver + * + * Copyright (c) 2011-2013 Xilinx Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * You should have received a copy of the GNU General Public + * License along with this program; if not, write to the Free + * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA + * 02139, USA. + */ + +#include <linux/export.h> +#include <linux/io.h> +#include <linux/fs.h> +#include <linux/interrupt.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of_address.h> +#include <linux/uaccess.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <linux/clk/zynq.h> +#include "common.h" + +#define SLCR_UNLOCK_MAGIC 0xDF0D +#define SLCR_UNLOCK 0x8 /* SCLR unlock register */ + +#define SLCR_PS_RST_CTRL_OFFSET 0x200 /* PS Software Reset Control */ + +#define SLCR_A9_CPU_CLKSTOP 0x10 +#define SLCR_A9_CPU_RST 0x1 + +#define SLCR_A9_CPU_RST_CTRL 0x244 /* CPU Software Reset Control */ +#define SLCR_REBOOT_STATUS 0x258 /* PS Reboot Status */ + +void __iomem *zynq_slcr_base; + +/** + * zynq_slcr_system_reset - Reset the entire system. + */ +void zynq_slcr_system_reset(void) +{ + u32 reboot; + + /* + * Unlock the SLCR then reset the system. + * Note that this seems to require raw i/o + * functions or there's a lockup? + */ + writel(SLCR_UNLOCK_MAGIC, zynq_slcr_base + SLCR_UNLOCK); + + /* + * Clear 0x0F000000 bits of reboot status register to workaround + * the FSBL not loading the bitstream after soft-reboot + * This is a temporary solution until we know more. + */ + reboot = readl(zynq_slcr_base + SLCR_REBOOT_STATUS); + writel(reboot & 0xF0FFFFFF, zynq_slcr_base + SLCR_REBOOT_STATUS); + writel(1, zynq_slcr_base + SLCR_PS_RST_CTRL_OFFSET); +} + +/** + * zynq_slcr_cpu_start - Start cpu + * @cpu: cpu number + */ +void zynq_slcr_cpu_start(int cpu) +{ + /* enable CPUn */ + writel(SLCR_A9_CPU_CLKSTOP << cpu, + zynq_slcr_base + SLCR_A9_CPU_RST_CTRL); + /* enable CLK for CPUn */ + writel(0x0 << cpu, zynq_slcr_base + SLCR_A9_CPU_RST_CTRL); +} + +/** + * zynq_slcr_cpu_stop - Stop cpu + * @cpu: cpu number + */ +void zynq_slcr_cpu_stop(int cpu) +{ + /* stop CLK and reset CPUn */ + writel((SLCR_A9_CPU_CLKSTOP | SLCR_A9_CPU_RST) << cpu, + zynq_slcr_base + SLCR_A9_CPU_RST_CTRL); +} + +/** + * zynq_slcr_init + * Returns 0 on success, negative errno otherwise. + * + * Called early during boot from platform code to remap SLCR area. + */ +int __init zynq_slcr_init(void) +{ + struct device_node *np; + + np = of_find_compatible_node(NULL, NULL, "xlnx,zynq-slcr"); + if (!np) { + pr_err("%s: no slcr node found\n", __func__); + BUG(); + } + + zynq_slcr_base = of_iomap(np, 0); + if (!zynq_slcr_base) { + pr_err("%s: Unable to map I/O memory\n", __func__); + BUG(); + } + + /* unlock the SLCR so that registers can be changed */ + writel(SLCR_UNLOCK_MAGIC, zynq_slcr_base + SLCR_UNLOCK); + + pr_info("%s mapped to %p\n", np->name, zynq_slcr_base); + + xilinx_zynq_clocks_init(zynq_slcr_base); + + of_node_put(np); + + return 0; +} diff --git a/arch/arm/plat-orion/Makefile b/arch/arm/plat-orion/Makefile index ad97400ba3a..2eca54b6590 100644 --- a/arch/arm/plat-orion/Makefile +++ b/arch/arm/plat-orion/Makefile @@ -3,12 +3,6 @@ # ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include -obj-$(CONFIG_ARCH_MVEBU) += addr-map.o -obj-$(CONFIG_ARCH_KIRKWOOD) += addr-map.o -obj-$(CONFIG_ARCH_DOVE) += addr-map.o -obj-$(CONFIG_ARCH_ORION5X) += addr-map.o -obj-$(CONFIG_ARCH_MV78XX0) += addr-map.o - orion-gpio-$(CONFIG_GENERIC_GPIO) += gpio.o obj-$(CONFIG_PLAT_ORION_LEGACY) += irq.o pcie.o time.o common.o mpp.o obj-$(CONFIG_PLAT_ORION_LEGACY) += $(orion-gpio-y) diff --git a/arch/arm/plat-orion/addr-map.c b/arch/arm/plat-orion/addr-map.c deleted file mode 100644 index 807ac8e5cbc..00000000000 --- a/arch/arm/plat-orion/addr-map.c +++ /dev/null @@ -1,178 +0,0 @@ -/* - * arch/arm/plat-orion/addr-map.c - * - * Address map functions for Marvell Orion based SoCs - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/mbus.h> -#include <linux/io.h> -#include <plat/addr-map.h> - -struct mbus_dram_target_info orion_mbus_dram_info; - -const struct mbus_dram_target_info *mv_mbus_dram_info(void) -{ - return &orion_mbus_dram_info; -} -EXPORT_SYMBOL_GPL(mv_mbus_dram_info); - -/* - * DDR target is the same on all Orion platforms. - */ -#define TARGET_DDR 0 - -/* - * Helpers to get DDR bank info - */ -#define DDR_BASE_CS_OFF(n) (0x0000 + ((n) << 3)) -#define DDR_SIZE_CS_OFF(n) (0x0004 + ((n) << 3)) - -/* - * CPU Address Decode Windows registers - */ -#define WIN_CTRL_OFF 0x0000 -#define WIN_BASE_OFF 0x0004 -#define WIN_REMAP_LO_OFF 0x0008 -#define WIN_REMAP_HI_OFF 0x000c - -#define ATTR_HW_COHERENCY (0x1 << 4) - -/* - * Default implementation - */ -static void __init __iomem * -orion_win_cfg_base(const struct orion_addr_map_cfg *cfg, int win) -{ - return cfg->bridge_virt_base + (win << 4); -} - -/* - * Default implementation - */ -static int __init orion_cpu_win_can_remap(const struct orion_addr_map_cfg *cfg, - const int win) -{ - if (win < cfg->remappable_wins) - return 1; - - return 0; -} - -void __init orion_setup_cpu_win(const struct orion_addr_map_cfg *cfg, - const int win, const u32 base, - const u32 size, const u8 target, - const u8 attr, const int remap) -{ - void __iomem *addr = cfg->win_cfg_base(cfg, win); - u32 ctrl, base_high, remap_addr; - - if (win >= cfg->num_wins) { - printk(KERN_ERR "setup_cpu_win: trying to allocate window " - "%d when only %d allowed\n", win, cfg->num_wins); - } - - base_high = base & 0xffff0000; - ctrl = ((size - 1) & 0xffff0000) | (attr << 8) | (target << 4) | 1; - - writel(base_high, addr + WIN_BASE_OFF); - writel(ctrl, addr + WIN_CTRL_OFF); - if (cfg->cpu_win_can_remap(cfg, win)) { - if (remap < 0) - remap_addr = base; - else - remap_addr = remap; - writel(remap_addr & 0xffff0000, addr + WIN_REMAP_LO_OFF); - writel(0, addr + WIN_REMAP_HI_OFF); - } -} - -/* - * Configure a number of windows. - */ -static void __init orion_setup_cpu_wins(const struct orion_addr_map_cfg * cfg, - const struct orion_addr_map_info *info) -{ - while (info->win != -1) { - orion_setup_cpu_win(cfg, info->win, info->base, info->size, - info->target, info->attr, info->remap); - info++; - } -} - -static void __init orion_disable_wins(const struct orion_addr_map_cfg * cfg) -{ - void __iomem *addr; - int i; - - for (i = 0; i < cfg->num_wins; i++) { - addr = cfg->win_cfg_base(cfg, i); - - writel(0, addr + WIN_BASE_OFF); - writel(0, addr + WIN_CTRL_OFF); - if (cfg->cpu_win_can_remap(cfg, i)) { - writel(0, addr + WIN_REMAP_LO_OFF); - writel(0, addr + WIN_REMAP_HI_OFF); - } - } -} - -/* - * Disable, clear and configure windows. - */ -void __init orion_config_wins(struct orion_addr_map_cfg * cfg, - const struct orion_addr_map_info *info) -{ - if (!cfg->cpu_win_can_remap) - cfg->cpu_win_can_remap = orion_cpu_win_can_remap; - - if (!cfg->win_cfg_base) - cfg->win_cfg_base = orion_win_cfg_base; - - orion_disable_wins(cfg); - - if (info) - orion_setup_cpu_wins(cfg, info); -} - -/* - * Setup MBUS dram target info. - */ -void __init orion_setup_cpu_mbus_target(const struct orion_addr_map_cfg *cfg, - const void __iomem *ddr_window_cpu_base) -{ - int i; - int cs; - - orion_mbus_dram_info.mbus_dram_target_id = TARGET_DDR; - - for (i = 0, cs = 0; i < 4; i++) { - u32 base = readl(ddr_window_cpu_base + DDR_BASE_CS_OFF(i)); - u32 size = readl(ddr_window_cpu_base + DDR_SIZE_CS_OFF(i)); - - /* - * We only take care of entries for which the chip - * select is enabled, and that don't have high base - * address bits set (devices can only access the first - * 32 bits of the memory). - */ - if ((size & 1) && !(base & 0xF)) { - struct mbus_dram_window *w; - - w = &orion_mbus_dram_info.cs[cs++]; - w->cs_index = i; - w->mbus_attr = 0xf & ~(1 << i); - if (cfg->hw_io_coherency) - w->mbus_attr |= ATTR_HW_COHERENCY; - w->base = base & 0xffff0000; - w->size = (size | 0x0000ffff) + 1; - } - } - orion_mbus_dram_info.num_cs = cs; -} diff --git a/arch/arm/plat-orion/gpio.c b/arch/arm/plat-orion/gpio.c index c29ee7ea200..e39c2ba6e2f 100644 --- a/arch/arm/plat-orion/gpio.c +++ b/arch/arm/plat-orion/gpio.c @@ -439,6 +439,64 @@ static void gpio_irq_handler(unsigned irq, struct irq_desc *desc) } } +#ifdef CONFIG_DEBUG_FS +#include <linux/seq_file.h> + +static void orion_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) +{ + struct orion_gpio_chip *ochip = + container_of(chip, struct orion_gpio_chip, chip); + u32 out, io_conf, blink, in_pol, data_in, cause, edg_msk, lvl_msk; + int i; + + out = readl_relaxed(GPIO_OUT(ochip)); + io_conf = readl_relaxed(GPIO_IO_CONF(ochip)); + blink = readl_relaxed(GPIO_BLINK_EN(ochip)); + in_pol = readl_relaxed(GPIO_IN_POL(ochip)); + data_in = readl_relaxed(GPIO_DATA_IN(ochip)); + cause = readl_relaxed(GPIO_EDGE_CAUSE(ochip)); + edg_msk = readl_relaxed(GPIO_EDGE_MASK(ochip)); + lvl_msk = readl_relaxed(GPIO_LEVEL_MASK(ochip)); + + for (i = 0; i < chip->ngpio; i++) { + const char *label; + u32 msk; + bool is_out; + + label = gpiochip_is_requested(chip, i); + if (!label) + continue; + + msk = 1 << i; + is_out = !(io_conf & msk); + + seq_printf(s, " gpio-%-3d (%-20.20s)", chip->base + i, label); + + if (is_out) { + seq_printf(s, " out %s %s\n", + out & msk ? "hi" : "lo", + blink & msk ? "(blink )" : ""); + continue; + } + + seq_printf(s, " in %s (act %s) - IRQ", + (data_in ^ in_pol) & msk ? "hi" : "lo", + in_pol & msk ? "lo" : "hi"); + if (!((edg_msk | lvl_msk) & msk)) { + seq_printf(s, " disabled\n"); + continue; + } + if (edg_msk & msk) + seq_printf(s, " edge "); + if (lvl_msk & msk) + seq_printf(s, " level"); + seq_printf(s, " (%s)\n", cause & msk ? "pending" : "clear "); + } +} +#else +#define orion_gpio_dbg_show NULL +#endif + void __init orion_gpio_init(struct device_node *np, int gpio_base, int ngpio, void __iomem *base, int mask_offset, @@ -471,6 +529,7 @@ void __init orion_gpio_init(struct device_node *np, #ifdef CONFIG_OF ochip->chip.of_node = np; #endif + ochip->chip.dbg_show = orion_gpio_dbg_show; spin_lock_init(&ochip->lock); ochip->base = (void __iomem *)base; diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig index 0f51ed687dc..b05ecab915c 100644 --- a/drivers/bus/Kconfig +++ b/drivers/bus/Kconfig @@ -4,6 +4,13 @@ menu "Bus devices" +config MVEBU_MBUS + bool + depends on PLAT_ORION + help + Driver needed for the MBus configuration on Marvell EBU SoCs + (Kirkwood, Dove, Orion5x, MV78XX0 and Armada 370/XP). + config OMAP_OCP2SCP tristate "OMAP OCP2SCP DRIVER" depends on ARCH_OMAP2PLUS diff --git a/drivers/bus/Makefile b/drivers/bus/Makefile index 45d997c8545..3c7b53c1209 100644 --- a/drivers/bus/Makefile +++ b/drivers/bus/Makefile @@ -2,6 +2,7 @@ # Makefile for the bus drivers. # +obj-$(CONFIG_MVEBU_MBUS) += mvebu-mbus.o obj-$(CONFIG_OMAP_OCP2SCP) += omap-ocp2scp.o # Interconnect bus driver for OMAP SoCs. diff --git a/drivers/bus/mvebu-mbus.c b/drivers/bus/mvebu-mbus.c new file mode 100644 index 00000000000..8740f46b4d0 --- /dev/null +++ b/drivers/bus/mvebu-mbus.c @@ -0,0 +1,870 @@ +/* + * Address map functions for Marvell EBU SoCs (Kirkwood, Armada + * 370/XP, Dove, Orion5x and MV78xx0) + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + * + * The Marvell EBU SoCs have a configurable physical address space: + * the physical address at which certain devices (PCIe, NOR, NAND, + * etc.) sit can be configured. The configuration takes place through + * two sets of registers: + * + * - One to configure the access of the CPU to the devices. Depending + * on the families, there are between 8 and 20 configurable windows, + * each can be use to create a physical memory window that maps to a + * specific device. Devices are identified by a tuple (target, + * attribute). + * + * - One to configure the access to the CPU to the SDRAM. There are + * either 2 (for Dove) or 4 (for other families) windows to map the + * SDRAM into the physical address space. + * + * This driver: + * + * - Reads out the SDRAM address decoding windows at initialization + * time, and fills the mvebu_mbus_dram_info structure with these + * informations. The exported function mv_mbus_dram_info() allow + * device drivers to get those informations related to the SDRAM + * address decoding windows. This is because devices also have their + * own windows (configured through registers that are part of each + * device register space), and therefore the drivers for Marvell + * devices have to configure those device -> SDRAM windows to ensure + * that DMA works properly. + * + * - Provides an API for platform code or device drivers to + * dynamically add or remove address decoding windows for the CPU -> + * device accesses. This API is mvebu_mbus_add_window(), + * mvebu_mbus_add_window_remap_flags() and + * mvebu_mbus_del_window(). Since the (target, attribute) values + * differ from one SoC family to another, the API uses a 'const char + * *' string to identify devices, and this driver is responsible for + * knowing the mapping between the name of a device and its + * corresponding (target, attribute) in the current SoC family. + * + * - Provides a debugfs interface in /sys/kernel/debug/mvebu-mbus/ to + * see the list of CPU -> SDRAM windows and their configuration + * (file 'sdram') and the list of CPU -> devices windows and their + * configuration (file 'devices'). + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/mbus.h> +#include <linux/io.h> +#include <linux/ioport.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/debugfs.h> + +/* + * DDR target is the same on all platforms. + */ +#define TARGET_DDR 0 + +/* + * CPU Address Decode Windows registers + */ +#define WIN_CTRL_OFF 0x0000 +#define WIN_CTRL_ENABLE BIT(0) +#define WIN_CTRL_TGT_MASK 0xf0 +#define WIN_CTRL_TGT_SHIFT 4 +#define WIN_CTRL_ATTR_MASK 0xff00 +#define WIN_CTRL_ATTR_SHIFT 8 +#define WIN_CTRL_SIZE_MASK 0xffff0000 +#define WIN_CTRL_SIZE_SHIFT 16 +#define WIN_BASE_OFF 0x0004 +#define WIN_BASE_LOW 0xffff0000 +#define WIN_BASE_HIGH 0xf +#define WIN_REMAP_LO_OFF 0x0008 +#define WIN_REMAP_LOW 0xffff0000 +#define WIN_REMAP_HI_OFF 0x000c + +#define ATTR_HW_COHERENCY (0x1 << 4) + +#define DDR_BASE_CS_OFF(n) (0x0000 + ((n) << 3)) +#define DDR_BASE_CS_HIGH_MASK 0xf +#define DDR_BASE_CS_LOW_MASK 0xff000000 +#define DDR_SIZE_CS_OFF(n) (0x0004 + ((n) << 3)) +#define DDR_SIZE_ENABLED BIT(0) +#define DDR_SIZE_CS_MASK 0x1c +#define DDR_SIZE_CS_SHIFT 2 +#define DDR_SIZE_MASK 0xff000000 + +#define DOVE_DDR_BASE_CS_OFF(n) ((n) << 4) + +struct mvebu_mbus_mapping { + const char *name; + u8 target; + u8 attr; + u8 attrmask; +}; + +/* + * Masks used for the 'attrmask' field of mvebu_mbus_mapping. They + * allow to get the real attribute value, discarding the special bits + * used to select a PCI MEM region or a PCI WA region. This allows the + * debugfs code to reverse-match the name of a device from its + * target/attr values. + * + * For all devices except PCI, all bits of 'attr' must be + * considered. For most SoCs, only bit 3 should be ignored (it allows + * to select between PCI MEM and PCI I/O). On Orion5x however, there + * is the special bit 5 to select a PCI WA region. + */ +#define MAPDEF_NOMASK 0xff +#define MAPDEF_PCIMASK 0xf7 +#define MAPDEF_ORIONPCIMASK 0xd7 + +/* Macro used to define one mvebu_mbus_mapping entry */ +#define MAPDEF(__n, __t, __a, __m) \ + { .name = __n, .target = __t, .attr = __a, .attrmask = __m } + +struct mvebu_mbus_state; + +struct mvebu_mbus_soc_data { + unsigned int num_wins; + unsigned int num_remappable_wins; + unsigned int (*win_cfg_offset)(const int win); + void (*setup_cpu_target)(struct mvebu_mbus_state *s); + int (*show_cpu_target)(struct mvebu_mbus_state *s, + struct seq_file *seq, void *v); + const struct mvebu_mbus_mapping *map; +}; + +struct mvebu_mbus_state { + void __iomem *mbuswins_base; + void __iomem *sdramwins_base; + struct dentry *debugfs_root; + struct dentry *debugfs_sdram; + struct dentry *debugfs_devs; + const struct mvebu_mbus_soc_data *soc; + int hw_io_coherency; +}; + +static struct mvebu_mbus_state mbus_state; + +static struct mbus_dram_target_info mvebu_mbus_dram_info; +const struct mbus_dram_target_info *mv_mbus_dram_info(void) +{ + return &mvebu_mbus_dram_info; +} +EXPORT_SYMBOL_GPL(mv_mbus_dram_info); + +/* + * Functions to manipulate the address decoding windows + */ + +static void mvebu_mbus_read_window(struct mvebu_mbus_state *mbus, + int win, int *enabled, u64 *base, + u32 *size, u8 *target, u8 *attr, + u64 *remap) +{ + void __iomem *addr = mbus->mbuswins_base + + mbus->soc->win_cfg_offset(win); + u32 basereg = readl(addr + WIN_BASE_OFF); + u32 ctrlreg = readl(addr + WIN_CTRL_OFF); + + if (!(ctrlreg & WIN_CTRL_ENABLE)) { + *enabled = 0; + return; + } + + *enabled = 1; + *base = ((u64)basereg & WIN_BASE_HIGH) << 32; + *base |= (basereg & WIN_BASE_LOW); + *size = (ctrlreg | ~WIN_CTRL_SIZE_MASK) + 1; + + if (target) + *target = (ctrlreg & WIN_CTRL_TGT_MASK) >> WIN_CTRL_TGT_SHIFT; + + if (attr) + *attr = (ctrlreg & WIN_CTRL_ATTR_MASK) >> WIN_CTRL_ATTR_SHIFT; + + if (remap) { + if (win < mbus->soc->num_remappable_wins) { + u32 remap_low = readl(addr + WIN_REMAP_LO_OFF); + u32 remap_hi = readl(addr + WIN_REMAP_HI_OFF); + *remap = ((u64)remap_hi << 32) | remap_low; + } else + *remap = 0; + } +} + +static void mvebu_mbus_disable_window(struct mvebu_mbus_state *mbus, + int win) +{ + void __iomem *addr; + + addr = mbus->mbuswins_base + mbus->soc->win_cfg_offset(win); + + writel(0, addr + WIN_BASE_OFF); + writel(0, addr + WIN_CTRL_OFF); + if (win < mbus->soc->num_remappable_wins) { + writel(0, addr + WIN_REMAP_LO_OFF); + writel(0, addr + WIN_REMAP_HI_OFF); + } +} + +/* Checks whether the given window number is available */ +static int mvebu_mbus_window_is_free(struct mvebu_mbus_state *mbus, + const int win) +{ + void __iomem *addr = mbus->mbuswins_base + + mbus->soc->win_cfg_offset(win); + u32 ctrl = readl(addr + WIN_CTRL_OFF); + return !(ctrl & WIN_CTRL_ENABLE); +} + +/* + * Checks whether the given (base, base+size) area doesn't overlap an + * existing region + */ +static int mvebu_mbus_window_conflicts(struct mvebu_mbus_state *mbus, + phys_addr_t base, size_t size, + u8 target, u8 attr) +{ + u64 end = (u64)base + size; + int win; + + for (win = 0; win < mbus->soc->num_wins; win++) { + u64 wbase, wend; + u32 wsize; + u8 wtarget, wattr; + int enabled; + + mvebu_mbus_read_window(mbus, win, + &enabled, &wbase, &wsize, + &wtarget, &wattr, NULL); + + if (!enabled) + continue; + + wend = wbase + wsize; + + /* + * Check if the current window overlaps with the + * proposed physical range + */ + if ((u64)base < wend && end > wbase) + return 0; + + /* + * Check if target/attribute conflicts + */ + if (target == wtarget && attr == wattr) + return 0; + } + + return 1; +} + +static int mvebu_mbus_find_window(struct mvebu_mbus_state *mbus, + phys_addr_t base, size_t size) +{ + int win; + + for (win = 0; win < mbus->soc->num_wins; win++) { + u64 wbase; + u32 wsize; + int enabled; + + mvebu_mbus_read_window(mbus, win, + &enabled, &wbase, &wsize, + NULL, NULL, NULL); + + if (!enabled) + continue; + + if (base == wbase && size == wsize) + return win; + } + + return -ENODEV; +} + +static int mvebu_mbus_setup_window(struct mvebu_mbus_state *mbus, + int win, phys_addr_t base, size_t size, + phys_addr_t remap, u8 target, + u8 attr) +{ + void __iomem *addr = mbus->mbuswins_base + + mbus->soc->win_cfg_offset(win); + u32 ctrl, remap_addr; + + ctrl = ((size - 1) & WIN_CTRL_SIZE_MASK) | + (attr << WIN_CTRL_ATTR_SHIFT) | + (target << WIN_CTRL_TGT_SHIFT) | + WIN_CTRL_ENABLE; + + writel(base & WIN_BASE_LOW, addr + WIN_BASE_OFF); + writel(ctrl, addr + WIN_CTRL_OFF); + if (win < mbus->soc->num_remappable_wins) { + if (remap == MVEBU_MBUS_NO_REMAP) + remap_addr = base; + else + remap_addr = remap; + writel(remap_addr & WIN_REMAP_LOW, addr + WIN_REMAP_LO_OFF); + writel(0, addr + WIN_REMAP_HI_OFF); + } + + return 0; +} + +static int mvebu_mbus_alloc_window(struct mvebu_mbus_state *mbus, + phys_addr_t base, size_t size, + phys_addr_t remap, u8 target, + u8 attr) +{ + int win; + + if (remap == MVEBU_MBUS_NO_REMAP) { + for (win = mbus->soc->num_remappable_wins; + win < mbus->soc->num_wins; win++) + if (mvebu_mbus_window_is_free(mbus, win)) + return mvebu_mbus_setup_window(mbus, win, base, + size, remap, + target, attr); + } + + + for (win = 0; win < mbus->soc->num_wins; win++) + if (mvebu_mbus_window_is_free(mbus, win)) + return mvebu_mbus_setup_window(mbus, win, base, size, + remap, target, attr); + + return -ENOMEM; +} + +/* + * Debugfs debugging + */ + +/* Common function used for Dove, Kirkwood, Armada 370/XP and Orion 5x */ +static int mvebu_sdram_debug_show_orion(struct mvebu_mbus_state *mbus, + struct seq_file *seq, void *v) +{ + int i; + + for (i = 0; i < 4; i++) { + u32 basereg = readl(mbus->sdramwins_base + DDR_BASE_CS_OFF(i)); + u32 sizereg = readl(mbus->sdramwins_base + DDR_SIZE_CS_OFF(i)); + u64 base; + u32 size; + + if (!(sizereg & DDR_SIZE_ENABLED)) { + seq_printf(seq, "[%d] disabled\n", i); + continue; + } + + base = ((u64)basereg & DDR_BASE_CS_HIGH_MASK) << 32; + base |= basereg & DDR_BASE_CS_LOW_MASK; + size = (sizereg | ~DDR_SIZE_MASK); + + seq_printf(seq, "[%d] %016llx - %016llx : cs%d\n", + i, (unsigned long long)base, + (unsigned long long)base + size + 1, + (sizereg & DDR_SIZE_CS_MASK) >> DDR_SIZE_CS_SHIFT); + } + + return 0; +} + +/* Special function for Dove */ +static int mvebu_sdram_debug_show_dove(struct mvebu_mbus_state *mbus, + struct seq_file *seq, void *v) +{ + int i; + + for (i = 0; i < 2; i++) { + u32 map = readl(mbus->sdramwins_base + DOVE_DDR_BASE_CS_OFF(i)); + u64 base; + u32 size; + + if (!(map & 1)) { + seq_printf(seq, "[%d] disabled\n", i); + continue; + } + + base = map & 0xff800000; + size = 0x100000 << (((map & 0x000f0000) >> 16) - 4); + + seq_printf(seq, "[%d] %016llx - %016llx : cs%d\n", + i, (unsigned long long)base, + (unsigned long long)base + size, i); + } + + return 0; +} + +static int mvebu_sdram_debug_show(struct seq_file *seq, void *v) +{ + struct mvebu_mbus_state *mbus = &mbus_state; + return mbus->soc->show_cpu_target(mbus, seq, v); +} + +static int mvebu_sdram_debug_open(struct inode *inode, struct file *file) +{ + return single_open(file, mvebu_sdram_debug_show, inode->i_private); +} + +static const struct file_operations mvebu_sdram_debug_fops = { + .open = mvebu_sdram_debug_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int mvebu_devs_debug_show(struct seq_file *seq, void *v) +{ + struct mvebu_mbus_state *mbus = &mbus_state; + int win; + + for (win = 0; win < mbus->soc->num_wins; win++) { + u64 wbase, wremap; + u32 wsize; + u8 wtarget, wattr; + int enabled, i; + const char *name; + + mvebu_mbus_read_window(mbus, win, + &enabled, &wbase, &wsize, + &wtarget, &wattr, &wremap); + + if (!enabled) { + seq_printf(seq, "[%02d] disabled\n", win); + continue; + } + + + for (i = 0; mbus->soc->map[i].name; i++) + if (mbus->soc->map[i].target == wtarget && + mbus->soc->map[i].attr == + (wattr & mbus->soc->map[i].attrmask)) + break; + + name = mbus->soc->map[i].name ?: "unknown"; + + seq_printf(seq, "[%02d] %016llx - %016llx : %s", + win, (unsigned long long)wbase, + (unsigned long long)(wbase + wsize), name); + + if (win < mbus->soc->num_remappable_wins) { + seq_printf(seq, " (remap %016llx)\n", + (unsigned long long)wremap); + } else + seq_printf(seq, "\n"); + } + + return 0; +} + +static int mvebu_devs_debug_open(struct inode *inode, struct file *file) +{ + return single_open(file, mvebu_devs_debug_show, inode->i_private); +} + +static const struct file_operations mvebu_devs_debug_fops = { + .open = mvebu_devs_debug_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +/* + * SoC-specific functions and definitions + */ + +static unsigned int orion_mbus_win_offset(int win) +{ + return win << 4; +} + +static unsigned int armada_370_xp_mbus_win_offset(int win) +{ + /* The register layout is a bit annoying and the below code + * tries to cope with it. + * - At offset 0x0, there are the registers for the first 8 + * windows, with 4 registers of 32 bits per window (ctrl, + * base, remap low, remap high) + * - Then at offset 0x80, there is a hole of 0x10 bytes for + * the internal registers base address and internal units + * sync barrier register. + * - Then at offset 0x90, there the registers for 12 + * windows, with only 2 registers of 32 bits per window + * (ctrl, base). + */ + if (win < 8) + return win << 4; + else + return 0x90 + ((win - 8) << 3); +} + +static unsigned int mv78xx0_mbus_win_offset(int win) +{ + if (win < 8) + return win << 4; + else + return 0x900 + ((win - 8) << 4); +} + +static void __init +mvebu_mbus_default_setup_cpu_target(struct mvebu_mbus_state *mbus) +{ + int i; + int cs; + + mvebu_mbus_dram_info.mbus_dram_target_id = TARGET_DDR; + + for (i = 0, cs = 0; i < 4; i++) { + u32 base = readl(mbus->sdramwins_base + DDR_BASE_CS_OFF(i)); + u32 size = readl(mbus->sdramwins_base + DDR_SIZE_CS_OFF(i)); + + /* + * We only take care of entries for which the chip + * select is enabled, and that don't have high base + * address bits set (devices can only access the first + * 32 bits of the memory). + */ + if ((size & DDR_SIZE_ENABLED) && + !(base & DDR_BASE_CS_HIGH_MASK)) { + struct mbus_dram_window *w; + + w = &mvebu_mbus_dram_info.cs[cs++]; + w->cs_index = i; + w->mbus_attr = 0xf & ~(1 << i); + if (mbus->hw_io_coherency) + w->mbus_attr |= ATTR_HW_COHERENCY; + w->base = base & DDR_BASE_CS_LOW_MASK; + w->size = (size | ~DDR_SIZE_MASK) + 1; + } + } + mvebu_mbus_dram_info.num_cs = cs; +} + +static void __init +mvebu_mbus_dove_setup_cpu_target(struct mvebu_mbus_state *mbus) +{ + int i; + int cs; + + mvebu_mbus_dram_info.mbus_dram_target_id = TARGET_DDR; + + for (i = 0, cs = 0; i < 2; i++) { + u32 map = readl(mbus->sdramwins_base + DOVE_DDR_BASE_CS_OFF(i)); + + /* + * Chip select enabled? + */ + if (map & 1) { + struct mbus_dram_window *w; + + w = &mvebu_mbus_dram_info.cs[cs++]; + w->cs_index = i; + w->mbus_attr = 0; /* CS address decoding done inside */ + /* the DDR controller, no need to */ + /* provide attributes */ + w->base = map & 0xff800000; + w->size = 0x100000 << (((map & 0x000f0000) >> 16) - 4); + } + } + + mvebu_mbus_dram_info.num_cs = cs; +} + +static const struct mvebu_mbus_mapping armada_370_map[] = { + MAPDEF("bootrom", 1, 0xe0, MAPDEF_NOMASK), + MAPDEF("devbus-boot", 1, 0x2f, MAPDEF_NOMASK), + MAPDEF("devbus-cs0", 1, 0x3e, MAPDEF_NOMASK), + MAPDEF("devbus-cs1", 1, 0x3d, MAPDEF_NOMASK), + MAPDEF("devbus-cs2", 1, 0x3b, MAPDEF_NOMASK), + MAPDEF("devbus-cs3", 1, 0x37, MAPDEF_NOMASK), + MAPDEF("pcie0.0", 4, 0xe0, MAPDEF_PCIMASK), + MAPDEF("pcie1.0", 8, 0xe0, MAPDEF_PCIMASK), + {}, +}; + +static const struct mvebu_mbus_soc_data armada_370_mbus_data = { + .num_wins = 20, + .num_remappable_wins = 8, + .win_cfg_offset = armada_370_xp_mbus_win_offset, + .setup_cpu_target = mvebu_mbus_default_setup_cpu_target, + .show_cpu_target = mvebu_sdram_debug_show_orion, + .map = armada_370_map, +}; + +static const struct mvebu_mbus_mapping armada_xp_map[] = { + MAPDEF("bootrom", 1, 0x1d, MAPDEF_NOMASK), + MAPDEF("devbus-boot", 1, 0x2f, MAPDEF_NOMASK), + MAPDEF("devbus-cs0", 1, 0x3e, MAPDEF_NOMASK), + MAPDEF("devbus-cs1", 1, 0x3d, MAPDEF_NOMASK), + MAPDEF("devbus-cs2", 1, 0x3b, MAPDEF_NOMASK), + MAPDEF("devbus-cs3", 1, 0x37, MAPDEF_NOMASK), + MAPDEF("pcie0.0", 4, 0xe0, MAPDEF_PCIMASK), + MAPDEF("pcie0.1", 4, 0xd0, MAPDEF_PCIMASK), + MAPDEF("pcie0.2", 4, 0xb0, MAPDEF_PCIMASK), + MAPDEF("pcie0.3", 4, 0x70, MAPDEF_PCIMASK), + MAPDEF("pcie1.0", 8, 0xe0, MAPDEF_PCIMASK), + MAPDEF("pcie1.1", 8, 0xd0, MAPDEF_PCIMASK), + MAPDEF("pcie1.2", 8, 0xb0, MAPDEF_PCIMASK), + MAPDEF("pcie1.3", 8, 0x70, MAPDEF_PCIMASK), + MAPDEF("pcie2.0", 4, 0xf0, MAPDEF_PCIMASK), + MAPDEF("pcie3.0", 8, 0xf0, MAPDEF_PCIMASK), + {}, +}; + +static const struct mvebu_mbus_soc_data armada_xp_mbus_data = { + .num_wins = 20, + .num_remappable_wins = 8, + .win_cfg_offset = armada_370_xp_mbus_win_offset, + .setup_cpu_target = mvebu_mbus_default_setup_cpu_target, + .show_cpu_target = mvebu_sdram_debug_show_orion, + .map = armada_xp_map, +}; + +static const struct mvebu_mbus_mapping kirkwood_map[] = { + MAPDEF("pcie0.0", 4, 0xe0, MAPDEF_PCIMASK), + MAPDEF("pcie1.0", 4, 0xd0, MAPDEF_PCIMASK), + MAPDEF("sram", 3, 0x01, MAPDEF_NOMASK), + MAPDEF("nand", 1, 0x2f, MAPDEF_NOMASK), + {}, +}; + +static const struct mvebu_mbus_soc_data kirkwood_mbus_data = { + .num_wins = 8, + .num_remappable_wins = 4, + .win_cfg_offset = orion_mbus_win_offset, + .setup_cpu_target = mvebu_mbus_default_setup_cpu_target, + .show_cpu_target = mvebu_sdram_debug_show_orion, + .map = kirkwood_map, +}; + +static const struct mvebu_mbus_mapping dove_map[] = { + MAPDEF("pcie0.0", 0x4, 0xe0, MAPDEF_PCIMASK), + MAPDEF("pcie1.0", 0x8, 0xe0, MAPDEF_PCIMASK), + MAPDEF("cesa", 0x3, 0x01, MAPDEF_NOMASK), + MAPDEF("bootrom", 0x1, 0xfd, MAPDEF_NOMASK), + MAPDEF("scratchpad", 0xd, 0x0, MAPDEF_NOMASK), + {}, +}; + +static const struct mvebu_mbus_soc_data dove_mbus_data = { + .num_wins = 8, + .num_remappable_wins = 4, + .win_cfg_offset = orion_mbus_win_offset, + .setup_cpu_target = mvebu_mbus_dove_setup_cpu_target, + .show_cpu_target = mvebu_sdram_debug_show_dove, + .map = dove_map, +}; + +static const struct mvebu_mbus_mapping orion5x_map[] = { + MAPDEF("pcie0.0", 4, 0x51, MAPDEF_ORIONPCIMASK), + MAPDEF("pci0.0", 3, 0x51, MAPDEF_ORIONPCIMASK), + MAPDEF("devbus-boot", 1, 0x0f, MAPDEF_NOMASK), + MAPDEF("devbus-cs0", 1, 0x1e, MAPDEF_NOMASK), + MAPDEF("devbus-cs1", 1, 0x1d, MAPDEF_NOMASK), + MAPDEF("devbus-cs2", 1, 0x1b, MAPDEF_NOMASK), + MAPDEF("sram", 0, 0x00, MAPDEF_NOMASK), + {}, +}; + +/* + * Some variants of Orion5x have 4 remappable windows, some other have + * only two of them. + */ +static const struct mvebu_mbus_soc_data orion5x_4win_mbus_data = { + .num_wins = 8, + .num_remappable_wins = 4, + .win_cfg_offset = orion_mbus_win_offset, + .setup_cpu_target = mvebu_mbus_default_setup_cpu_target, + .show_cpu_target = mvebu_sdram_debug_show_orion, + .map = orion5x_map, +}; + +static const struct mvebu_mbus_soc_data orion5x_2win_mbus_data = { + .num_wins = 8, + .num_remappable_wins = 2, + .win_cfg_offset = orion_mbus_win_offset, + .setup_cpu_target = mvebu_mbus_default_setup_cpu_target, + .show_cpu_target = mvebu_sdram_debug_show_orion, + .map = orion5x_map, +}; + +static const struct mvebu_mbus_mapping mv78xx0_map[] = { + MAPDEF("pcie0.0", 4, 0xe0, MAPDEF_PCIMASK), + MAPDEF("pcie0.1", 4, 0xd0, MAPDEF_PCIMASK), + MAPDEF("pcie0.2", 4, 0xb0, MAPDEF_PCIMASK), + MAPDEF("pcie0.3", 4, 0x70, MAPDEF_PCIMASK), + MAPDEF("pcie1.0", 8, 0xe0, MAPDEF_PCIMASK), + MAPDEF("pcie1.1", 8, 0xd0, MAPDEF_PCIMASK), + MAPDEF("pcie1.2", 8, 0xb0, MAPDEF_PCIMASK), + MAPDEF("pcie1.3", 8, 0x70, MAPDEF_PCIMASK), + MAPDEF("pcie2.0", 4, 0xf0, MAPDEF_PCIMASK), + MAPDEF("pcie3.0", 8, 0xf0, MAPDEF_PCIMASK), + {}, +}; + +static const struct mvebu_mbus_soc_data mv78xx0_mbus_data = { + .num_wins = 14, + .num_remappable_wins = 8, + .win_cfg_offset = mv78xx0_mbus_win_offset, + .setup_cpu_target = mvebu_mbus_default_setup_cpu_target, + .show_cpu_target = mvebu_sdram_debug_show_orion, + .map = mv78xx0_map, +}; + +/* + * The driver doesn't yet have a DT binding because the details of + * this DT binding still need to be sorted out. However, as a + * preparation, we already use of_device_id to match a SoC description + * string against the SoC specific details of this driver. + */ +static const struct of_device_id of_mvebu_mbus_ids[] = { + { .compatible = "marvell,armada370-mbus", + .data = &armada_370_mbus_data, }, + { .compatible = "marvell,armadaxp-mbus", + .data = &armada_xp_mbus_data, }, + { .compatible = "marvell,kirkwood-mbus", + .data = &kirkwood_mbus_data, }, + { .compatible = "marvell,dove-mbus", + .data = &dove_mbus_data, }, + { .compatible = "marvell,orion5x-88f5281-mbus", + .data = &orion5x_4win_mbus_data, }, + { .compatible = "marvell,orion5x-88f5182-mbus", + .data = &orion5x_2win_mbus_data, }, + { .compatible = "marvell,orion5x-88f5181-mbus", + .data = &orion5x_2win_mbus_data, }, + { .compatible = "marvell,orion5x-88f6183-mbus", + .data = &orion5x_4win_mbus_data, }, + { .compatible = "marvell,mv78xx0-mbus", + .data = &mv78xx0_mbus_data, }, + { }, +}; + +/* + * Public API of the driver + */ +int mvebu_mbus_add_window_remap_flags(const char *devname, phys_addr_t base, + size_t size, phys_addr_t remap, + unsigned int flags) +{ + struct mvebu_mbus_state *s = &mbus_state; + u8 target, attr; + int i; + + if (!s->soc->map) + return -ENODEV; + + for (i = 0; s->soc->map[i].name; i++) + if (!strcmp(s->soc->map[i].name, devname)) + break; + + if (!s->soc->map[i].name) { + pr_err("mvebu-mbus: unknown device '%s'\n", devname); + return -ENODEV; + } + + target = s->soc->map[i].target; + attr = s->soc->map[i].attr; + + if (flags == MVEBU_MBUS_PCI_MEM) + attr |= 0x8; + else if (flags == MVEBU_MBUS_PCI_WA) + attr |= 0x28; + + if (!mvebu_mbus_window_conflicts(s, base, size, target, attr)) { + pr_err("mvebu-mbus: cannot add window '%s', conflicts with another window\n", + devname); + return -EINVAL; + } + + return mvebu_mbus_alloc_window(s, base, size, remap, target, attr); + +} + +int mvebu_mbus_add_window(const char *devname, phys_addr_t base, size_t size) +{ + return mvebu_mbus_add_window_remap_flags(devname, base, size, + MVEBU_MBUS_NO_REMAP, 0); +} + +int mvebu_mbus_del_window(phys_addr_t base, size_t size) +{ + int win; + + win = mvebu_mbus_find_window(&mbus_state, base, size); + if (win < 0) + return win; + + mvebu_mbus_disable_window(&mbus_state, win); + return 0; +} + +static __init int mvebu_mbus_debugfs_init(void) +{ + struct mvebu_mbus_state *s = &mbus_state; + + /* + * If no base has been initialized, doesn't make sense to + * register the debugfs entries. We may be on a multiplatform + * kernel that isn't running a Marvell EBU SoC. + */ + if (!s->mbuswins_base) + return 0; + + s->debugfs_root = debugfs_create_dir("mvebu-mbus", NULL); + if (s->debugfs_root) { + s->debugfs_sdram = debugfs_create_file("sdram", S_IRUGO, + s->debugfs_root, NULL, + &mvebu_sdram_debug_fops); + s->debugfs_devs = debugfs_create_file("devices", S_IRUGO, + s->debugfs_root, NULL, + &mvebu_devs_debug_fops); + } + + return 0; +} +fs_initcall(mvebu_mbus_debugfs_init); + +int __init mvebu_mbus_init(const char *soc, phys_addr_t mbuswins_phys_base, + size_t mbuswins_size, + phys_addr_t sdramwins_phys_base, + size_t sdramwins_size) +{ + struct mvebu_mbus_state *mbus = &mbus_state; + const struct of_device_id *of_id; + int win; + + for (of_id = of_mvebu_mbus_ids; of_id->compatible; of_id++) + if (!strcmp(of_id->compatible, soc)) + break; + + if (!of_id->compatible) { + pr_err("mvebu-mbus: could not find a matching SoC family\n"); + return -ENODEV; + } + + mbus->soc = of_id->data; + + mbus->mbuswins_base = ioremap(mbuswins_phys_base, mbuswins_size); + if (!mbus->mbuswins_base) + return -ENOMEM; + + mbus->sdramwins_base = ioremap(sdramwins_phys_base, sdramwins_size); + if (!mbus->sdramwins_base) { + iounmap(mbus_state.mbuswins_base); + return -ENOMEM; + } + + if (of_find_compatible_node(NULL, NULL, "marvell,coherency-fabric")) + mbus->hw_io_coherency = 1; + + for (win = 0; win < mbus->soc->num_wins; win++) + mvebu_mbus_disable_window(mbus, win); + + mbus->soc->setup_cpu_target(mbus); + + return 0; +} diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7779.c b/drivers/pinctrl/sh-pfc/pfc-r8a7779.c index 62dcdcdec94..791a6719d8a 100644 --- a/drivers/pinctrl/sh-pfc/pfc-r8a7779.c +++ b/drivers/pinctrl/sh-pfc/pfc-r8a7779.c @@ -2552,7 +2552,7 @@ static const char * const intc_groups[] = { "intc_irq2", "intc_irq2_b", "intc_irq3", - "intc_irq4_b", + "intc_irq3_b", }; static const char * const lbsc_groups[] = { diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-common.c b/drivers/staging/imx-drm/ipu-v3/ipu-common.c index 0880ef1a01b..0127601c26c 100644 --- a/drivers/staging/imx-drm/ipu-v3/ipu-common.c +++ b/drivers/staging/imx-drm/ipu-v3/ipu-common.c @@ -16,6 +16,7 @@ #include <linux/export.h> #include <linux/types.h> #include <linux/init.h> +#include <linux/reset.h> #include <linux/platform_device.h> #include <linux/err.h> #include <linux/spinlock.h> @@ -661,7 +662,7 @@ int ipu_idmac_disable_channel(struct ipuv3_channel *channel) } EXPORT_SYMBOL_GPL(ipu_idmac_disable_channel); -static int ipu_reset(struct ipu_soc *ipu) +static int ipu_memory_reset(struct ipu_soc *ipu) { unsigned long timeout; @@ -1105,7 +1106,12 @@ static int ipu_probe(struct platform_device *pdev) if (ret) goto out_failed_irq; - ret = ipu_reset(ipu); + ret = device_reset(&pdev->dev); + if (ret) { + dev_err(&pdev->dev, "failed to reset: %d\n", ret); + goto out_failed_reset; + } + ret = ipu_memory_reset(ipu); if (ret) goto out_failed_reset; @@ -1131,8 +1137,8 @@ static int ipu_probe(struct platform_device *pdev) failed_add_clients: ipu_submodules_exit(ipu); failed_submodules_init: - ipu_irq_exit(ipu); out_failed_reset: + ipu_irq_exit(ipu); out_failed_irq: clk_disable_unprepare(ipu->clk); failed_clk_get: diff --git a/include/linux/mbus.h b/include/linux/mbus.h index efa1a6d7aca..dba482e31a1 100644 --- a/include/linux/mbus.h +++ b/include/linux/mbus.h @@ -32,6 +32,20 @@ struct mbus_dram_target_info } cs[4]; }; +/* Flags for PCI/PCIe address decoding regions */ +#define MVEBU_MBUS_PCI_IO 0x1 +#define MVEBU_MBUS_PCI_MEM 0x2 +#define MVEBU_MBUS_PCI_WA 0x3 + +/* + * Magic value that explicits that we don't need a remapping-capable + * address decoding window. + */ +#define MVEBU_MBUS_NO_REMAP (0xffffffff) + +/* Maximum size of a mbus window name */ +#define MVEBU_MBUS_MAX_WINNAME_SZ 32 + /* * The Marvell mbus is to be found only on SOCs from the Orion family * at the moment. Provide a dummy stub for other architectures. @@ -44,4 +58,15 @@ static inline const struct mbus_dram_target_info *mv_mbus_dram_info(void) return NULL; } #endif -#endif + +int mvebu_mbus_add_window_remap_flags(const char *devname, phys_addr_t base, + size_t size, phys_addr_t remap, + unsigned int flags); +int mvebu_mbus_add_window(const char *devname, phys_addr_t base, + size_t size); +int mvebu_mbus_del_window(phys_addr_t base, size_t size); +int mvebu_mbus_init(const char *soc, phys_addr_t mbus_phys_base, + size_t mbus_size, phys_addr_t sdram_phys_base, + size_t sdram_size); + +#endif /* __LINUX_MBUS_H */ |