From 965de8b91bddd1f5967240d1d44005719b09dd5e Mon Sep 17 00:00:00 2001 From: Lokesh Vutla Date: Tue, 10 Dec 2013 15:02:21 +0530 Subject: ARM: AM33xx+: Update ioregs to pass different values Currently same value is programmed for all ioregs. This is not the case for all SoC's like AM4372. So adding a structure for ioregs and updating in all board files. And also return from config_cmd_ctrl() and config_ddr_data() functions if data is not passed. Signed-off-by: Lokesh Vutla [trini: Fixup dxr2, cm_t335, adapt pcm051 rev3] Signed-off-by: Tom Rini --- arch/arm/cpu/armv7/am33xx/ddr.c | 27 +++++++++++++++++++++------ 1 file changed, 21 insertions(+), 6 deletions(-) (limited to 'arch/arm/cpu/armv7/am33xx/ddr.c') diff --git a/arch/arm/cpu/armv7/am33xx/ddr.c b/arch/arm/cpu/armv7/am33xx/ddr.c index 5b0454c3e..255f333b6 100644 --- a/arch/arm/cpu/armv7/am33xx/ddr.c +++ b/arch/arm/cpu/armv7/am33xx/ddr.c @@ -88,6 +88,9 @@ void config_ddr_phy(const struct emif_regs *regs, int nr) */ void config_cmd_ctrl(const struct cmd_control *cmd, int nr) { + if (!cmd) + return; + writel(cmd->cmd0csratio, &ddr_cmd_reg[nr]->cm0csratio); writel(cmd->cmd0iclkout, &ddr_cmd_reg[nr]->cm0iclkout); @@ -105,6 +108,9 @@ void config_ddr_data(const struct ddr_data *data, int nr) { int i; + if (!data) + return; + for (i = 0; i < DDR_DATA_REGS_NR; i++) { writel(data->datardsratio0, &(ddr_data_reg[nr]+i)->dt0rdsratio0); @@ -121,11 +127,20 @@ void config_ddr_data(const struct ddr_data *data, int nr) } } -void config_io_ctrl(unsigned long val) +void config_io_ctrl(const struct ctrl_ioregs *ioregs) { - writel(val, &ioctrl_reg->cm0ioctl); - writel(val, &ioctrl_reg->cm1ioctl); - writel(val, &ioctrl_reg->cm2ioctl); - writel(val, &ioctrl_reg->dt0ioctl); - writel(val, &ioctrl_reg->dt1ioctl); + if (!ioregs) + return; + + writel(ioregs->cm0ioctl, &ioctrl_reg->cm0ioctl); + writel(ioregs->cm1ioctl, &ioctrl_reg->cm1ioctl); + writel(ioregs->cm2ioctl, &ioctrl_reg->cm2ioctl); + writel(ioregs->dt0ioctl, &ioctrl_reg->dt0ioctl); + writel(ioregs->dt1ioctl, &ioctrl_reg->dt1ioctl); +#ifdef CONFIG_AM43XX + writel(ioregs->dt2ioctrl, &ioctrl_reg->dt2ioctrl); + writel(ioregs->dt3ioctrl, &ioctrl_reg->dt3ioctrl); + writel(ioregs->emif_sdram_config_ext, + &ioctrl_reg->emif_sdram_config_ext); +#endif } -- cgit v1.2.3-70-g09d2 From d3daba10f159cca7e9d24c6f154926a9b92c75e3 Mon Sep 17 00:00:00 2001 From: Lokesh Vutla Date: Tue, 10 Dec 2013 15:02:22 +0530 Subject: ARM: AM43xx: EPOS_EVM: Add support for LPDDR2 AM4372 EPOS EVM has 1GB LPDDR2(Part no: MT42L256M32D2LG-25 WT:A) Adding LPDDR2 init sequence and register details for the same. Below is the brief description of LPDDR2 init sequence: -> Configure VTP -> Configure DDR IO settings -> Disable initialization and refreshes until EMIF registers are programmed. -> Program Timing registers -> Program PHY control and Temp alert and ZQ config registers. -> Enable initialization and refreshes and configure SDRAM CONFIG register -> Wait till initialization is complete and the configure MR registers. Signed-off-by: Lokesh Vutla --- arch/arm/cpu/armv7/am33xx/ddr.c | 117 +++++++++++++++++++++ arch/arm/cpu/armv7/am33xx/emif4.c | 22 +++- arch/arm/include/asm/arch-am33xx/clocks_am33xx.h | 3 + arch/arm/include/asm/arch-am33xx/cpu.h | 5 + arch/arm/include/asm/arch-am33xx/ddr_defs.h | 33 +++++- arch/arm/include/asm/arch-am33xx/hardware_am43xx.h | 1 + arch/arm/include/asm/emif.h | 12 +++ board/ti/am43xx/board.c | 66 ++++++++++++ 8 files changed, 256 insertions(+), 3 deletions(-) (limited to 'arch/arm/cpu/armv7/am33xx/ddr.c') diff --git a/arch/arm/cpu/armv7/am33xx/ddr.c b/arch/arm/cpu/armv7/am33xx/ddr.c index 255f333b6..1abbb07c9 100644 --- a/arch/arm/cpu/armv7/am33xx/ddr.c +++ b/arch/arm/cpu/armv7/am33xx/ddr.c @@ -36,6 +36,71 @@ static struct ddr_data_regs *ddr_data_reg[2] = { static struct ddr_cmdtctrl *ioctrl_reg = { (struct ddr_cmdtctrl *)DDR_CONTROL_BASE_ADDR}; +static inline u32 get_mr(int nr, u32 cs, u32 mr_addr) +{ + u32 mr; + + mr_addr |= cs << EMIF_REG_CS_SHIFT; + writel(mr_addr, &emif_reg[nr]->emif_lpddr2_mode_reg_cfg); + + mr = readl(&emif_reg[nr]->emif_lpddr2_mode_reg_data); + debug("get_mr: EMIF1 cs %d mr %08x val 0x%x\n", cs, mr_addr, mr); + if (((mr & 0x0000ff00) >> 8) == (mr & 0xff) && + ((mr & 0x00ff0000) >> 16) == (mr & 0xff) && + ((mr & 0xff000000) >> 24) == (mr & 0xff)) + return mr & 0xff; + else + return mr; +} + +static inline void set_mr(int nr, u32 cs, u32 mr_addr, u32 mr_val) +{ + mr_addr |= cs << EMIF_REG_CS_SHIFT; + writel(mr_addr, &emif_reg[nr]->emif_lpddr2_mode_reg_cfg); + writel(mr_val, &emif_reg[nr]->emif_lpddr2_mode_reg_data); +} + +static void configure_mr(int nr, u32 cs) +{ + u32 mr_addr; + + while (get_mr(nr, cs, LPDDR2_MR0) & LPDDR2_MR0_DAI_MASK) + ; + set_mr(nr, cs, LPDDR2_MR10, 0x56); + + set_mr(nr, cs, LPDDR2_MR1, 0x43); + set_mr(nr, cs, LPDDR2_MR2, 0x2); + + mr_addr = LPDDR2_MR2 | EMIF_REG_REFRESH_EN_MASK; + set_mr(nr, cs, mr_addr, 0x2); +} + +/* + * Configure EMIF4D5 registers and MR registers + */ +void config_sdram_emif4d5(const struct emif_regs *regs, int nr) +{ + writel(0x0, &emif_reg[nr]->emif_pwr_mgmt_ctrl); + writel(0x0, &emif_reg[nr]->emif_pwr_mgmt_ctrl_shdw); + writel(0x1, &emif_reg[nr]->emif_iodft_tlgc); + writel(regs->zq_config, &emif_reg[nr]->emif_zq_config); + + writel(regs->temp_alert_config, &emif_reg[nr]->emif_temp_alert_config); + writel(regs->emif_rd_wr_lvl_rmp_win, + &emif_reg[nr]->emif_rd_wr_lvl_rmp_win); + writel(regs->emif_rd_wr_lvl_rmp_ctl, + &emif_reg[nr]->emif_rd_wr_lvl_rmp_ctl); + writel(regs->emif_rd_wr_lvl_ctl, &emif_reg[nr]->emif_rd_wr_lvl_ctl); + writel(regs->emif_rd_wr_exec_thresh, + &emif_reg[nr]->emif_rd_wr_exec_thresh); + + writel(regs->ref_ctrl, &emif_reg[nr]->emif_sdram_ref_ctrl); + writel(regs->sdram_config, &emif_reg[nr]->emif_sdram_config); + + configure_mr(nr, 0); + configure_mr(nr, 1); +} + /** * Configure SDRAM */ @@ -72,15 +137,67 @@ void set_sdram_timings(const struct emif_regs *regs, int nr) writel(regs->sdram_tim3, &emif_reg[nr]->emif_sdram_tim_3_shdw); } +void __weak emif_get_ext_phy_ctrl_const_regs(const u32 **regs, u32 *size) +{ +} + +/* + * Configure EXT PHY registers + */ +static void ext_phy_settings(const struct emif_regs *regs, int nr) +{ + u32 *ext_phy_ctrl_base = 0; + u32 *emif_ext_phy_ctrl_base = 0; + const u32 *ext_phy_ctrl_const_regs; + u32 i = 0; + u32 size; + + ext_phy_ctrl_base = (u32 *)&(regs->emif_ddr_ext_phy_ctrl_1); + emif_ext_phy_ctrl_base = + (u32 *)&(emif_reg[nr]->emif_ddr_ext_phy_ctrl_1); + + /* Configure external phy control timing registers */ + for (i = 0; i < EMIF_EXT_PHY_CTRL_TIMING_REG; i++) { + writel(*ext_phy_ctrl_base, emif_ext_phy_ctrl_base++); + /* Update shadow registers */ + writel(*ext_phy_ctrl_base++, emif_ext_phy_ctrl_base++); + } + + /* + * external phy 6-24 registers do not change with + * ddr frequency + */ + emif_get_ext_phy_ctrl_const_regs(&ext_phy_ctrl_const_regs, &size); + + if (!size) + return; + + for (i = 0; i < size; i++) { + writel(ext_phy_ctrl_const_regs[i], emif_ext_phy_ctrl_base++); + /* Update shadow registers */ + writel(ext_phy_ctrl_const_regs[i], emif_ext_phy_ctrl_base++); + } +} + /** * Configure DDR PHY */ void config_ddr_phy(const struct emif_regs *regs, int nr) { + /* + * disable initialization and refreshes for now until we + * finish programming EMIF regs. + */ + setbits_le32(&emif_reg[nr]->emif_sdram_ref_ctrl, + EMIF_REG_INITREF_DIS_MASK); + writel(regs->emif_ddr_phy_ctlr_1, &emif_reg[nr]->emif_ddr_phy_ctrl_1); writel(regs->emif_ddr_phy_ctlr_1, &emif_reg[nr]->emif_ddr_phy_ctrl_1_shdw); + + if (get_emif_rev((u32)emif_reg[nr]) == EMIF_4D5) + ext_phy_settings(regs, nr); } /** diff --git a/arch/arm/cpu/armv7/am33xx/emif4.c b/arch/arm/cpu/armv7/am33xx/emif4.c index adda650fe..d28fceb75 100644 --- a/arch/arm/cpu/armv7/am33xx/emif4.c +++ b/arch/arm/cpu/armv7/am33xx/emif4.c @@ -48,6 +48,11 @@ static struct vtp_reg *vtpreg[2] = { #ifdef CONFIG_AM33XX static struct ddr_ctrl *ddrctrl = (struct ddr_ctrl *)DDR_CTRL_ADDR; #endif +#ifdef CONFIG_AM43XX +static struct ddr_ctrl *ddrctrl = (struct ddr_ctrl *)DDR_CTRL_ADDR; +static struct cm_device_inst *cm_device = + (struct cm_device_inst *)CM_DEVICE_INST; +#endif #ifdef CONFIG_TI81XX void config_dmm(const struct dmm_lisa_map_regs *regs) @@ -104,9 +109,24 @@ void config_ddr(unsigned int pll, const struct ctrl_ioregs *ioregs, /* Set CKE to be controlled by EMIF/DDR PHY */ writel(DDR_CKE_CTRL_NORMAL, &ddrctrl->ddrckectrl); #endif +#ifdef CONFIG_AM43XX + writel(readl(&cm_device->cm_dll_ctrl) & ~0x1, &cm_device->cm_dll_ctrl); + while ((readl(&cm_device->cm_dll_ctrl) && CM_DLL_READYST) == 0) + ; + writel(0x0, &ddrctrl->ddrioctrl); + + config_io_ctrl(ioregs); + + /* Set CKE to be controlled by EMIF/DDR PHY */ + writel(DDR_CKE_CTRL_NORMAL, &ddrctrl->ddrckectrl); +#endif + /* Program EMIF instance */ config_ddr_phy(regs, nr); set_sdram_timings(regs, nr); - config_sdram(regs, nr); + if (get_emif_rev(EMIF1_BASE) == EMIF_4D5) + config_sdram_emif4d5(regs, nr); + else + config_sdram(regs, nr); } #endif diff --git a/arch/arm/include/asm/arch-am33xx/clocks_am33xx.h b/arch/arm/include/asm/arch-am33xx/clocks_am33xx.h index 02ed5957e..4c9352a2e 100644 --- a/arch/arm/include/asm/arch-am33xx/clocks_am33xx.h +++ b/arch/arm/include/asm/arch-am33xx/clocks_am33xx.h @@ -28,6 +28,9 @@ #define UART_CLK_RUNNING_MASK 0x1 #define UART_SMART_IDLE_EN (0x1 << 0x3) +#define CM_DLL_CTRL_NO_OVERRIDE 0x0 +#define CM_DLL_READYST 0x4 + extern void enable_dmm_clocks(void); extern const struct dpll_params dpll_core_opp100; extern struct dpll_params dpll_mpu_opp100; diff --git a/arch/arm/include/asm/arch-am33xx/cpu.h b/arch/arm/include/asm/arch-am33xx/cpu.h index 3ee37dc4e..9febfa271 100644 --- a/arch/arm/include/asm/arch-am33xx/cpu.h +++ b/arch/arm/include/asm/arch-am33xx/cpu.h @@ -401,6 +401,11 @@ struct cm_perpll { unsigned int cpgmac0clkctrl; /* offset 0xB20 */ }; +struct cm_device_inst { + unsigned int cm_clkout1_ctrl; + unsigned int cm_dll_ctrl; +}; + struct cm_dpll { unsigned int resv1; unsigned int clktimer2clk; /* offset 0x04 */ diff --git a/arch/arm/include/asm/arch-am33xx/ddr_defs.h b/arch/arm/include/asm/arch-am33xx/ddr_defs.h index 2278358ab..6af4b84e5 100644 --- a/arch/arm/include/asm/arch-am33xx/ddr_defs.h +++ b/arch/arm/include/asm/arch-am33xx/ddr_defs.h @@ -18,7 +18,11 @@ #define VTP_CTRL_READY (0x1 << 5) #define VTP_CTRL_ENABLE (0x1 << 6) #define VTP_CTRL_START_EN (0x1) +#ifdef CONFIG_AM43XX +#define DDR_CKE_CTRL_NORMAL 0x3 +#else #define DDR_CKE_CTRL_NORMAL 0x1 +#endif #define PHY_EN_DYN_PWRDN (0x1 << 20) /* Micron MT47H128M16RT-25E */ @@ -124,6 +128,14 @@ #define K4B2G1646EBIH9_PHY_WR_DATA 0x76 #define K4B2G1646EBIH9_IOCTRL_VALUE 0x18B +#define LPDDR2_ADDRCTRL_IOCTRL_VALUE 0x294 +#define LPDDR2_ADDRCTRL_WD0_IOCTRL_VALUE 0x00000000 +#define LPDDR2_ADDRCTRL_WD1_IOCTRL_VALUE 0x00000000 +#define LPDDR2_DATA0_IOCTRL_VALUE 0x20000294 +#define LPDDR2_DATA1_IOCTRL_VALUE 0x20000294 +#define LPDDR2_DATA2_IOCTRL_VALUE 0x20000294 +#define LPDDR2_DATA3_IOCTRL_VALUE 0x20000294 + /** * Configure DMM */ @@ -133,6 +145,7 @@ void config_dmm(const struct dmm_lisa_map_regs *regs); * Configure SDRAM */ void config_sdram(const struct emif_regs *regs, int nr); +void config_sdram_emif4d5(const struct emif_regs *regs, int nr); /** * Set SDRAM timings @@ -278,12 +291,27 @@ struct ddr_cmdtctrl { unsigned int resv2[12]; unsigned int dt0ioctl; unsigned int dt1ioctl; + unsigned int dt2ioctrl; + unsigned int dt3ioctrl; + unsigned int resv3[4]; + unsigned int emif_sdram_config_ext; +}; + +struct ctrl_ioregs { + unsigned int cm0ioctl; + unsigned int cm1ioctl; + unsigned int cm2ioctl; + unsigned int dt0ioctl; + unsigned int dt1ioctl; + unsigned int dt2ioctrl; + unsigned int dt3ioctrl; + unsigned int emif_sdram_config_ext; }; /** * Configure DDR io control registers */ -void config_io_ctrl(unsigned long val); +void config_io_ctrl(const struct ctrl_ioregs *ioregs); struct ddr_ctrl { unsigned int ddrioctrl; @@ -291,8 +319,9 @@ struct ddr_ctrl { unsigned int ddrckectrl; }; -void config_ddr(unsigned int pll, unsigned int ioctrl, +void config_ddr(unsigned int pll, const struct ctrl_ioregs *ioregs, const struct ddr_data *data, const struct cmd_control *ctrl, const struct emif_regs *regs, int nr); +void emif_get_ext_phy_ctrl_const_regs(const u32 **regs, u32 *size); #endif /* _DDR_DEFS_H */ diff --git a/arch/arm/include/asm/arch-am33xx/hardware_am43xx.h b/arch/arm/include/asm/arch-am33xx/hardware_am43xx.h index 468521bf3..15399dcc7 100644 --- a/arch/arm/include/asm/arch-am33xx/hardware_am43xx.h +++ b/arch/arm/include/asm/arch-am33xx/hardware_am43xx.h @@ -62,6 +62,7 @@ #define PRM_PER_USBPHYOCP2SCP0_CLKCTRL (CM_PER + 0x5b8) #define PRM_PER_USBPHYOCP2SCP1_CLKCTRL (CM_PER + 0x5c0) #define USBPHYOCPSCP_MODULE_EN (1 << 1) +#define CM_DEVICE_INST 0x44df4100 /* Control status register */ #define CTRL_CRYSTAL_FREQ_SRC_MASK (1 << 31) diff --git a/arch/arm/include/asm/emif.h b/arch/arm/include/asm/emif.h index d9d521a51..e68c113e2 100644 --- a/arch/arm/include/asm/emif.h +++ b/arch/arm/include/asm/emif.h @@ -14,11 +14,15 @@ #define _EMIF_H_ #include #include +#include /* Base address */ #define EMIF1_BASE 0x4c000000 #define EMIF2_BASE 0x4d000000 +#define EMIF_4D 0x4 +#define EMIF_4D5 0x5 + /* Registers shifts, masks and values */ /* EMIF_MOD_ID_REV */ @@ -1148,6 +1152,14 @@ struct read_write_regs { u32 write_reg; }; +static inline u32 get_emif_rev(u32 base) +{ + struct emif_reg_struct *emif = (struct emif_reg_struct *)base; + + return (readl(&emif->emif_mod_id_rev) & EMIF_REG_MAJOR_REVISION_MASK) + >> EMIF_REG_MAJOR_REVISION_SHIFT; +} + /* assert macros */ #if defined(DEBUG) #define emif_assert(c) ({ if (!(c)) for (;;); }) diff --git a/board/ti/am43xx/board.c b/board/ti/am43xx/board.c index 5c92ac7f3..5a013e338 100644 --- a/board/ti/am43xx/board.c +++ b/board/ti/am43xx/board.c @@ -15,6 +15,8 @@ #include #include #include +#include +#include #include "board.h" DECLARE_GLOBAL_DATA_PTR; @@ -122,6 +124,69 @@ const struct dpll_params epos_evm_dpll_ddr = { const struct dpll_params gp_evm_dpll_ddr = { 400, 23, 1, -1, 1, -1, -1}; +const struct ctrl_ioregs ioregs_lpddr2 = { + .cm0ioctl = LPDDR2_ADDRCTRL_IOCTRL_VALUE, + .cm1ioctl = LPDDR2_ADDRCTRL_WD0_IOCTRL_VALUE, + .cm2ioctl = LPDDR2_ADDRCTRL_WD1_IOCTRL_VALUE, + .dt0ioctl = LPDDR2_DATA0_IOCTRL_VALUE, + .dt1ioctl = LPDDR2_DATA0_IOCTRL_VALUE, + .dt2ioctrl = LPDDR2_DATA0_IOCTRL_VALUE, + .dt3ioctrl = LPDDR2_DATA0_IOCTRL_VALUE, + .emif_sdram_config_ext = 0x1, +}; + +const struct emif_regs emif_regs_lpddr2 = { + .sdram_config = 0x808012BA, + .ref_ctrl = 0x0000040D, + .sdram_tim1 = 0xEA86B411, + .sdram_tim2 = 0x103A094A, + .sdram_tim3 = 0x0F6BA37F, + .read_idle_ctrl = 0x00050000, + .zq_config = 0x50074BE4, + .temp_alert_config = 0x0, + .emif_rd_wr_lvl_rmp_win = 0x0, + .emif_rd_wr_lvl_rmp_ctl = 0x0, + .emif_rd_wr_lvl_ctl = 0x0, + .emif_ddr_phy_ctlr_1 = 0x0E084006, + .emif_rd_wr_exec_thresh = 0x00000405, + .emif_ddr_ext_phy_ctrl_1 = 0x04010040, + .emif_ddr_ext_phy_ctrl_2 = 0x00500050, + .emif_ddr_ext_phy_ctrl_3 = 0x00500050, + .emif_ddr_ext_phy_ctrl_4 = 0x00500050, + .emif_ddr_ext_phy_ctrl_5 = 0x00500050 +}; + +const u32 ext_phy_ctrl_const_base_lpddr2[] = { + 0x00500050, + 0x00350035, + 0x00350035, + 0x00350035, + 0x00350035, + 0x00350035, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x40001000, + 0x08102040 +}; + +void emif_get_ext_phy_ctrl_const_regs(const u32 **regs, u32 *size) +{ + *regs = ext_phy_ctrl_const_base_lpddr2; + *size = ARRAY_SIZE(ext_phy_ctrl_const_base_lpddr2); + + return; +} + const struct dpll_params *get_dpll_ddr_params(void) { struct am43xx_board_id header; @@ -217,6 +282,7 @@ void set_mux_conf_regs(void) void sdram_init(void) { + config_ddr(0, &ioregs_lpddr2, NULL, NULL, &emif_regs_lpddr2, 0); } #endif -- cgit v1.2.3-70-g09d2 From b5e01eecc89e3e5c2ed3c17b803529be3c3702fb Mon Sep 17 00:00:00 2001 From: Lokesh Vutla Date: Tue, 10 Dec 2013 15:02:23 +0530 Subject: ARM: AM43xx: GP_EVM: Add support for DDR3 GP EVM has 1GB DDR3 attached(Part no: MT41K512M8RH). Adding details for the same. Below is the brief description of DDR3 init sequence(SW leveling): -> Enable VTT regulator -> Configure VTP -> Configure DDR IO settings -> Disable initialization and refreshes until EMIF registers are programmed. -> Program Timing registers -> Program leveling registers -> Program PHY control and Temp alert and ZQ config registers. -> Enable initialization and refreshes and configure SDRAM CONFIG register Signed-off-by: Lokesh Vutla --- arch/arm/cpu/armv7/am33xx/ddr.c | 6 +- arch/arm/cpu/armv7/omap-common/emif-common.c | 14 ----- arch/arm/include/asm/arch-am33xx/ddr_defs.h | 8 +++ arch/arm/include/asm/arch-am33xx/gpio.h | 12 ++++ arch/arm/include/asm/emif.h | 14 +++++ board/ti/am43xx/board.c | 93 +++++++++++++++++++++++++++- board/ti/am43xx/mux.c | 8 +++ 7 files changed, 136 insertions(+), 19 deletions(-) (limited to 'arch/arm/cpu/armv7/am33xx/ddr.c') diff --git a/arch/arm/cpu/armv7/am33xx/ddr.c b/arch/arm/cpu/armv7/am33xx/ddr.c index 1abbb07c9..d05e666a7 100644 --- a/arch/arm/cpu/armv7/am33xx/ddr.c +++ b/arch/arm/cpu/armv7/am33xx/ddr.c @@ -97,8 +97,10 @@ void config_sdram_emif4d5(const struct emif_regs *regs, int nr) writel(regs->ref_ctrl, &emif_reg[nr]->emif_sdram_ref_ctrl); writel(regs->sdram_config, &emif_reg[nr]->emif_sdram_config); - configure_mr(nr, 0); - configure_mr(nr, 1); + if (emif_sdram_type() == EMIF_SDRAM_TYPE_LPDDR2) { + configure_mr(nr, 0); + configure_mr(nr, 1); + } } /** diff --git a/arch/arm/cpu/armv7/omap-common/emif-common.c b/arch/arm/cpu/armv7/omap-common/emif-common.c index 5a3f2858c..cd6289b4f 100644 --- a/arch/arm/cpu/armv7/omap-common/emif-common.c +++ b/arch/arm/cpu/armv7/omap-common/emif-common.c @@ -50,20 +50,6 @@ inline u32 emif_num(u32 base) return 0; } -/* - * Get SDRAM type connected to EMIF. - * Assuming similar SDRAM parts are connected to both EMIF's - * which is typically the case. So it is sufficient to get - * SDRAM type from EMIF1. - */ -u32 emif_sdram_type() -{ - struct emif_reg_struct *emif = (struct emif_reg_struct *)EMIF1_BASE; - - return (readl(&emif->emif_sdram_config) & - EMIF_REG_SDRAM_TYPE_MASK) >> EMIF_REG_SDRAM_TYPE_SHIFT; -} - static inline u32 get_mr(u32 base, u32 cs, u32 mr_addr) { u32 mr; diff --git a/arch/arm/include/asm/arch-am33xx/ddr_defs.h b/arch/arm/include/asm/arch-am33xx/ddr_defs.h index 6af4b84e5..c1777dfdc 100644 --- a/arch/arm/include/asm/arch-am33xx/ddr_defs.h +++ b/arch/arm/include/asm/arch-am33xx/ddr_defs.h @@ -136,6 +136,14 @@ #define LPDDR2_DATA2_IOCTRL_VALUE 0x20000294 #define LPDDR2_DATA3_IOCTRL_VALUE 0x20000294 +#define DDR3_ADDRCTRL_WD0_IOCTRL_VALUE 0x00000000 +#define DDR3_ADDRCTRL_WD1_IOCTRL_VALUE 0x00000000 +#define DDR3_ADDRCTRL_IOCTRL_VALUE 0x84 +#define DDR3_DATA0_IOCTRL_VALUE 0x84 +#define DDR3_DATA1_IOCTRL_VALUE 0x84 +#define DDR3_DATA2_IOCTRL_VALUE 0x84 +#define DDR3_DATA3_IOCTRL_VALUE 0x84 + /** * Configure DMM */ diff --git a/arch/arm/include/asm/arch-am33xx/gpio.h b/arch/arm/include/asm/arch-am33xx/gpio.h index 13a047fd7..a1ffd49f7 100644 --- a/arch/arm/include/asm/arch-am33xx/gpio.h +++ b/arch/arm/include/asm/arch-am33xx/gpio.h @@ -13,4 +13,16 @@ #define AM33XX_GPIO2_BASE 0x481AC000 #define AM33XX_GPIO3_BASE 0x481AE000 +#define GPIO_22 22 + +/* GPIO CTRL register */ +#define GPIO_CTRL_DISABLEMODULE_SHIFT 0 +#define GPIO_CTRL_DISABLEMODULE_MASK (1 << 0) +#define GPIO_CTRL_ENABLEMODULE GPIO_CTRL_DISABLEMODULE_MASK + +/* GPIO OUTPUT ENABLE register */ +#define GPIO_OE_ENABLE(x) (1 << x) + +/* GPIO SETDATAOUT register */ +#define GPIO_SETDATAOUT(x) (1 << x) #endif /* _GPIO_AM33xx_H */ diff --git a/arch/arm/include/asm/emif.h b/arch/arm/include/asm/emif.h index e68c113e2..45668ca4d 100644 --- a/arch/arm/include/asm/emif.h +++ b/arch/arm/include/asm/emif.h @@ -1160,6 +1160,20 @@ static inline u32 get_emif_rev(u32 base) >> EMIF_REG_MAJOR_REVISION_SHIFT; } +/* + * Get SDRAM type connected to EMIF. + * Assuming similar SDRAM parts are connected to both EMIF's + * which is typically the case. So it is sufficient to get + * SDRAM type from EMIF1. + */ +static inline u32 emif_sdram_type(void) +{ + struct emif_reg_struct *emif = (struct emif_reg_struct *)EMIF1_BASE; + + return (readl(&emif->emif_sdram_config) & + EMIF_REG_SDRAM_TYPE_MASK) >> EMIF_REG_SDRAM_TYPE_SHIFT; +} + /* assert macros */ #if defined(DEBUG) #define emif_assert(c) ({ if (!(c)) for (;;); }) diff --git a/board/ti/am43xx/board.c b/board/ti/am43xx/board.c index 5a013e338..ed87cd97b 100644 --- a/board/ti/am43xx/board.c +++ b/board/ti/am43xx/board.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include "board.h" @@ -179,10 +180,70 @@ const u32 ext_phy_ctrl_const_base_lpddr2[] = { 0x08102040 }; +const struct ctrl_ioregs ioregs_ddr3 = { + .cm0ioctl = DDR3_ADDRCTRL_IOCTRL_VALUE, + .cm1ioctl = DDR3_ADDRCTRL_WD0_IOCTRL_VALUE, + .cm2ioctl = DDR3_ADDRCTRL_WD1_IOCTRL_VALUE, + .dt0ioctl = DDR3_DATA0_IOCTRL_VALUE, + .dt1ioctl = DDR3_DATA0_IOCTRL_VALUE, + .dt2ioctrl = DDR3_DATA0_IOCTRL_VALUE, + .dt3ioctrl = DDR3_DATA0_IOCTRL_VALUE, + .emif_sdram_config_ext = 0x0043, +}; + +const struct emif_regs ddr3_emif_regs_400Mhz = { + .sdram_config = 0x638413B2, + .ref_ctrl = 0x00000C30, + .sdram_tim1 = 0xEAAAD4DB, + .sdram_tim2 = 0x266B7FDA, + .sdram_tim3 = 0x107F8678, + .read_idle_ctrl = 0x00050000, + .zq_config = 0x50074BE4, + .temp_alert_config = 0x0, + .emif_ddr_phy_ctlr_1 = 0x0E084008, + .emif_ddr_ext_phy_ctrl_1 = 0x08020080, + .emif_ddr_ext_phy_ctrl_2 = 0x00400040, + .emif_ddr_ext_phy_ctrl_3 = 0x00400040, + .emif_ddr_ext_phy_ctrl_4 = 0x00400040, + .emif_ddr_ext_phy_ctrl_5 = 0x00400040, + .emif_rd_wr_lvl_rmp_win = 0x0, + .emif_rd_wr_lvl_rmp_ctl = 0x0, + .emif_rd_wr_lvl_ctl = 0x0, + .emif_rd_wr_exec_thresh = 0x00000405 +}; + +const u32 ext_phy_ctrl_const_base_ddr3[] = { + 0x00400040, + 0x00350035, + 0x00350035, + 0x00350035, + 0x00350035, + 0x00350035, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00340034, + 0x00340034, + 0x00340034, + 0x00340034, + 0x00340034, + 0x0, + 0x0, + 0x40000000, + 0x08102040 +}; + void emif_get_ext_phy_ctrl_const_regs(const u32 **regs, u32 *size) { - *regs = ext_phy_ctrl_const_base_lpddr2; - *size = ARRAY_SIZE(ext_phy_ctrl_const_base_lpddr2); + if (board_is_eposevm()) { + *regs = ext_phy_ctrl_const_base_lpddr2; + *size = ARRAY_SIZE(ext_phy_ctrl_const_base_lpddr2); + } else if (board_is_gpevm()) { + *regs = ext_phy_ctrl_const_base_ddr3; + *size = ARRAY_SIZE(ext_phy_ctrl_const_base_ddr3); + } return; } @@ -280,9 +341,35 @@ void set_mux_conf_regs(void) enable_board_pin_mux(); } +static void enable_vtt_regulator(void) +{ + u32 temp; + + /* enable module */ + writel(GPIO_CTRL_ENABLEMODULE, AM33XX_GPIO0_BASE + OMAP_GPIO_CTRL); + + /* enable output for GPIO0_22 */ + writel(GPIO_SETDATAOUT(GPIO_22), + AM33XX_GPIO0_BASE + OMAP_GPIO_SETDATAOUT); + temp = readl(AM33XX_GPIO0_BASE + OMAP_GPIO_OE); + temp = temp & ~(GPIO_OE_ENABLE(GPIO_22)); + writel(temp, AM33XX_GPIO0_BASE + OMAP_GPIO_OE); +} + void sdram_init(void) { - config_ddr(0, &ioregs_lpddr2, NULL, NULL, &emif_regs_lpddr2, 0); + /* + * EPOS EVM has 1GB LPDDR2 connected to EMIF. + * GP EMV has 1GB DDR3 connected to EMIF + * along with VTT regulator. + */ + if (board_is_eposevm()) { + config_ddr(0, &ioregs_lpddr2, NULL, NULL, &emif_regs_lpddr2, 0); + } else if (board_is_gpevm()) { + enable_vtt_regulator(); + config_ddr(0, &ioregs_ddr3, NULL, NULL, + &ddr3_emif_regs_400Mhz, 0); + } } #endif diff --git a/board/ti/am43xx/mux.c b/board/ti/am43xx/mux.c index a2d72dde5..810b1941d 100644 --- a/board/ti/am43xx/mux.c +++ b/board/ti/am43xx/mux.c @@ -33,6 +33,11 @@ static struct module_pin_mux i2c0_pin_mux[] = { {-1}, }; +static struct module_pin_mux gpio0_22_pin_mux[] = { + {OFFSET(ddr_ba2), (MODE(9) | PULLUP_EN)}, /* GPIO0_22 */ + {-1}, +}; + void enable_uart0_pin_mux(void) { configure_module_pin_mux(uart0_pin_mux); @@ -42,6 +47,9 @@ void enable_board_pin_mux(void) { configure_module_pin_mux(mmc0_pin_mux); configure_module_pin_mux(i2c0_pin_mux); + + if (board_is_gpevm()) + configure_module_pin_mux(gpio0_22_pin_mux); } void enable_i2c0_pin_mux(void) -- cgit v1.2.3-70-g09d2