diff options
Diffstat (limited to 'arch/arm/mach-davinci/dm646x.c')
| -rw-r--r-- | arch/arm/mach-davinci/dm646x.c | 636 | 
1 files changed, 636 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c new file mode 100644 index 00000000000..334f0711e0f --- /dev/null +++ b/arch/arm/mach-davinci/dm646x.c @@ -0,0 +1,636 @@ +/* + * TI DaVinci DM644x chip specific setup + * + * Author: Kevin Hilman, Deep Root Systems, LLC + * + * 2007 (c) Deep Root Systems, LLC. 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/clk.h> +#include <linux/serial_8250.h> +#include <linux/platform_device.h> +#include <linux/gpio.h> + +#include <asm/mach/map.h> + +#include <mach/dm646x.h> +#include <mach/clock.h> +#include <mach/cputype.h> +#include <mach/edma.h> +#include <mach/irqs.h> +#include <mach/psc.h> +#include <mach/mux.h> +#include <mach/time.h> +#include <mach/serial.h> +#include <mach/common.h> + +#include "clock.h" +#include "mux.h" + +/* + * Device specific clocks + */ +#define DM646X_REF_FREQ		27000000 +#define DM646X_AUX_FREQ		24000000 + +static struct pll_data pll1_data = { +	.num       = 1, +	.phys_base = DAVINCI_PLL1_BASE, +}; + +static struct pll_data pll2_data = { +	.num       = 2, +	.phys_base = DAVINCI_PLL2_BASE, +}; + +static struct clk ref_clk = { +	.name = "ref_clk", +	.rate = DM646X_REF_FREQ, +}; + +static struct clk aux_clkin = { +	.name = "aux_clkin", +	.rate = DM646X_AUX_FREQ, +}; + +static struct clk pll1_clk = { +	.name = "pll1", +	.parent = &ref_clk, +	.pll_data = &pll1_data, +	.flags = CLK_PLL, +}; + +static struct clk pll1_sysclk1 = { +	.name = "pll1_sysclk1", +	.parent = &pll1_clk, +	.flags = CLK_PLL, +	.div_reg = PLLDIV1, +}; + +static struct clk pll1_sysclk2 = { +	.name = "pll1_sysclk2", +	.parent = &pll1_clk, +	.flags = CLK_PLL, +	.div_reg = PLLDIV2, +}; + +static struct clk pll1_sysclk3 = { +	.name = "pll1_sysclk3", +	.parent = &pll1_clk, +	.flags = CLK_PLL, +	.div_reg = PLLDIV3, +}; + +static struct clk pll1_sysclk4 = { +	.name = "pll1_sysclk4", +	.parent = &pll1_clk, +	.flags = CLK_PLL, +	.div_reg = PLLDIV4, +}; + +static struct clk pll1_sysclk5 = { +	.name = "pll1_sysclk5", +	.parent = &pll1_clk, +	.flags = CLK_PLL, +	.div_reg = PLLDIV5, +}; + +static struct clk pll1_sysclk6 = { +	.name = "pll1_sysclk6", +	.parent = &pll1_clk, +	.flags = CLK_PLL, +	.div_reg = PLLDIV6, +}; + +static struct clk pll1_sysclk8 = { +	.name = "pll1_sysclk8", +	.parent = &pll1_clk, +	.flags = CLK_PLL, +	.div_reg = PLLDIV8, +}; + +static struct clk pll1_sysclk9 = { +	.name = "pll1_sysclk9", +	.parent = &pll1_clk, +	.flags = CLK_PLL, +	.div_reg = PLLDIV9, +}; + +static struct clk pll1_sysclkbp = { +	.name = "pll1_sysclkbp", +	.parent = &pll1_clk, +	.flags = CLK_PLL | PRE_PLL, +	.div_reg = BPDIV, +}; + +static struct clk pll1_aux_clk = { +	.name = "pll1_aux_clk", +	.parent = &pll1_clk, +	.flags = CLK_PLL | PRE_PLL, +}; + +static struct clk pll2_clk = { +	.name = "pll2_clk", +	.parent = &ref_clk, +	.pll_data = &pll2_data, +	.flags = CLK_PLL, +}; + +static struct clk pll2_sysclk1 = { +	.name = "pll2_sysclk1", +	.parent = &pll2_clk, +	.flags = CLK_PLL, +	.div_reg = PLLDIV1, +}; + +static struct clk dsp_clk = { +	.name = "dsp", +	.parent = &pll1_sysclk1, +	.lpsc = DM646X_LPSC_C64X_CPU, +	.flags = PSC_DSP, +	.usecount = 1,			/* REVISIT how to disable? */ +}; + +static struct clk arm_clk = { +	.name = "arm", +	.parent = &pll1_sysclk2, +	.lpsc = DM646X_LPSC_ARM, +	.flags = ALWAYS_ENABLED, +}; + +static struct clk uart0_clk = { +	.name = "uart0", +	.parent = &aux_clkin, +	.lpsc = DM646X_LPSC_UART0, +}; + +static struct clk uart1_clk = { +	.name = "uart1", +	.parent = &aux_clkin, +	.lpsc = DM646X_LPSC_UART1, +}; + +static struct clk uart2_clk = { +	.name = "uart2", +	.parent = &aux_clkin, +	.lpsc = DM646X_LPSC_UART2, +}; + +static struct clk i2c_clk = { +	.name = "I2CCLK", +	.parent = &pll1_sysclk3, +	.lpsc = DM646X_LPSC_I2C, +}; + +static struct clk gpio_clk = { +	.name = "gpio", +	.parent = &pll1_sysclk3, +	.lpsc = DM646X_LPSC_GPIO, +}; + +static struct clk aemif_clk = { +	.name = "aemif", +	.parent = &pll1_sysclk3, +	.lpsc = DM646X_LPSC_AEMIF, +	.flags = ALWAYS_ENABLED, +}; + +static struct clk emac_clk = { +	.name = "emac", +	.parent = &pll1_sysclk3, +	.lpsc = DM646X_LPSC_EMAC, +}; + +static struct clk pwm0_clk = { +	.name = "pwm0", +	.parent = &pll1_sysclk3, +	.lpsc = DM646X_LPSC_PWM0, +	.usecount = 1,            /* REVIST: disabling hangs system */ +}; + +static struct clk pwm1_clk = { +	.name = "pwm1", +	.parent = &pll1_sysclk3, +	.lpsc = DM646X_LPSC_PWM1, +	.usecount = 1,            /* REVIST: disabling hangs system */ +}; + +static struct clk timer0_clk = { +	.name = "timer0", +	.parent = &pll1_sysclk3, +	.lpsc = DM646X_LPSC_TIMER0, +}; + +static struct clk timer1_clk = { +	.name = "timer1", +	.parent = &pll1_sysclk3, +	.lpsc = DM646X_LPSC_TIMER1, +}; + +static struct clk timer2_clk = { +	.name = "timer2", +	.parent = &pll1_sysclk3, +	.flags = ALWAYS_ENABLED, /* no LPSC, always enabled; c.f. spruep9a */ +}; + +static struct clk vpif0_clk = { +	.name = "vpif0", +	.parent = &ref_clk, +	.lpsc = DM646X_LPSC_VPSSMSTR, +	.flags = ALWAYS_ENABLED, +}; + +static struct clk vpif1_clk = { +	.name = "vpif1", +	.parent = &ref_clk, +	.lpsc = DM646X_LPSC_VPSSSLV, +	.flags = ALWAYS_ENABLED, +}; + +struct davinci_clk dm646x_clks[] = { +	CLK(NULL, "ref", &ref_clk), +	CLK(NULL, "aux", &aux_clkin), +	CLK(NULL, "pll1", &pll1_clk), +	CLK(NULL, "pll1_sysclk", &pll1_sysclk1), +	CLK(NULL, "pll1_sysclk", &pll1_sysclk2), +	CLK(NULL, "pll1_sysclk", &pll1_sysclk3), +	CLK(NULL, "pll1_sysclk", &pll1_sysclk4), +	CLK(NULL, "pll1_sysclk", &pll1_sysclk5), +	CLK(NULL, "pll1_sysclk", &pll1_sysclk6), +	CLK(NULL, "pll1_sysclk", &pll1_sysclk8), +	CLK(NULL, "pll1_sysclk", &pll1_sysclk9), +	CLK(NULL, "pll1_sysclk", &pll1_sysclkbp), +	CLK(NULL, "pll1_aux", &pll1_aux_clk), +	CLK(NULL, "pll2", &pll2_clk), +	CLK(NULL, "pll2_sysclk1", &pll2_sysclk1), +	CLK(NULL, "dsp", &dsp_clk), +	CLK(NULL, "arm", &arm_clk), +	CLK(NULL, "uart0", &uart0_clk), +	CLK(NULL, "uart1", &uart1_clk), +	CLK(NULL, "uart2", &uart2_clk), +	CLK("i2c_davinci.1", NULL, &i2c_clk), +	CLK(NULL, "gpio", &gpio_clk), +	CLK(NULL, "aemif", &aemif_clk), +	CLK("davinci_emac.1", NULL, &emac_clk), +	CLK(NULL, "pwm0", &pwm0_clk), +	CLK(NULL, "pwm1", &pwm1_clk), +	CLK(NULL, "timer0", &timer0_clk), +	CLK(NULL, "timer1", &timer1_clk), +	CLK("watchdog", NULL, &timer2_clk), +	CLK(NULL, "vpif0", &vpif0_clk), +	CLK(NULL, "vpif1", &vpif1_clk), +	CLK(NULL, NULL, NULL), +}; + +static struct emac_platform_data dm646x_emac_pdata = { +	.ctrl_reg_offset	= DM646X_EMAC_CNTRL_OFFSET, +	.ctrl_mod_reg_offset	= DM646X_EMAC_CNTRL_MOD_OFFSET, +	.ctrl_ram_offset	= DM646X_EMAC_CNTRL_RAM_OFFSET, +	.mdio_reg_offset	= DM646X_EMAC_MDIO_OFFSET, +	.ctrl_ram_size		= DM646X_EMAC_CNTRL_RAM_SIZE, +	.version		= EMAC_VERSION_2, +}; + +static struct resource dm646x_emac_resources[] = { +	{ +		.start	= DM646X_EMAC_BASE, +		.end	= DM646X_EMAC_BASE + 0x47ff, +		.flags	= IORESOURCE_MEM, +	}, +	{ +		.start	= IRQ_DM646X_EMACRXTHINT, +		.end	= IRQ_DM646X_EMACRXTHINT, +		.flags	= IORESOURCE_IRQ, +	}, +	{ +		.start	= IRQ_DM646X_EMACRXINT, +		.end	= IRQ_DM646X_EMACRXINT, +		.flags	= IORESOURCE_IRQ, +	}, +	{ +		.start	= IRQ_DM646X_EMACTXINT, +		.end	= IRQ_DM646X_EMACTXINT, +		.flags	= IORESOURCE_IRQ, +	}, +	{ +		.start	= IRQ_DM646X_EMACMISCINT, +		.end	= IRQ_DM646X_EMACMISCINT, +		.flags	= IORESOURCE_IRQ, +	}, +}; + +static struct platform_device dm646x_emac_device = { +	.name		= "davinci_emac", +	.id		= 1, +	.dev = { +		.platform_data	= &dm646x_emac_pdata, +	}, +	.num_resources	= ARRAY_SIZE(dm646x_emac_resources), +	.resource	= dm646x_emac_resources, +}; + +#define PINMUX0		0x00 +#define PINMUX1		0x04 + +/* + * Device specific mux setup + * + *	soc	description	mux  mode   mode  mux	 dbg + *				reg  offset mask  mode + */ +static const struct mux_config dm646x_pins[] = { +#ifdef CONFIG_DAVINCI_MUX +MUX_CFG(DM646X, ATAEN,		0,   0,     1,	  1,	 true) + +MUX_CFG(DM646X, AUDCK1,		0,   29,    1,	  0,	 false) + +MUX_CFG(DM646X, AUDCK0,		0,   28,    1,	  0,	 false) + +MUX_CFG(DM646X, CRGMUX,			0,   24,    7,    5,	 true) + +MUX_CFG(DM646X, STSOMUX_DISABLE,	0,   22,    3,    0,	 true) + +MUX_CFG(DM646X, STSIMUX_DISABLE,	0,   20,    3,    0,	 true) + +MUX_CFG(DM646X, PTSOMUX_DISABLE,	0,   18,    3,    0,	 true) + +MUX_CFG(DM646X, PTSIMUX_DISABLE,	0,   16,    3,    0,	 true) + +MUX_CFG(DM646X, STSOMUX,		0,   22,    3,    2,	 true) + +MUX_CFG(DM646X, STSIMUX,		0,   20,    3,    2,	 true) + +MUX_CFG(DM646X, PTSOMUX_PARALLEL,	0,   18,    3,    2,	 true) + +MUX_CFG(DM646X, PTSIMUX_PARALLEL,	0,   16,    3,    2,	 true) + +MUX_CFG(DM646X, PTSOMUX_SERIAL,		0,   18,    3,    3,	 true) + +MUX_CFG(DM646X, PTSIMUX_SERIAL,		0,   16,    3,    3,	 true) +#endif +}; + +static u8 dm646x_default_priorities[DAVINCI_N_AINTC_IRQ] = { +	[IRQ_DM646X_VP_VERTINT0]        = 7, +	[IRQ_DM646X_VP_VERTINT1]        = 7, +	[IRQ_DM646X_VP_VERTINT2]        = 7, +	[IRQ_DM646X_VP_VERTINT3]        = 7, +	[IRQ_DM646X_VP_ERRINT]          = 7, +	[IRQ_DM646X_RESERVED_1]         = 7, +	[IRQ_DM646X_RESERVED_2]         = 7, +	[IRQ_DM646X_WDINT]              = 7, +	[IRQ_DM646X_CRGENINT0]          = 7, +	[IRQ_DM646X_CRGENINT1]          = 7, +	[IRQ_DM646X_TSIFINT0]           = 7, +	[IRQ_DM646X_TSIFINT1]           = 7, +	[IRQ_DM646X_VDCEINT]            = 7, +	[IRQ_DM646X_USBINT]             = 7, +	[IRQ_DM646X_USBDMAINT]          = 7, +	[IRQ_DM646X_PCIINT]             = 7, +	[IRQ_CCINT0]                    = 7,    /* dma */ +	[IRQ_CCERRINT]                  = 7,    /* dma */ +	[IRQ_TCERRINT0]                 = 7,    /* dma */ +	[IRQ_TCERRINT]                  = 7,    /* dma */ +	[IRQ_DM646X_TCERRINT2]          = 7, +	[IRQ_DM646X_TCERRINT3]          = 7, +	[IRQ_DM646X_IDE]                = 7, +	[IRQ_DM646X_HPIINT]             = 7, +	[IRQ_DM646X_EMACRXTHINT]        = 7, +	[IRQ_DM646X_EMACRXINT]          = 7, +	[IRQ_DM646X_EMACTXINT]          = 7, +	[IRQ_DM646X_EMACMISCINT]        = 7, +	[IRQ_DM646X_MCASP0TXINT]        = 7, +	[IRQ_DM646X_MCASP0RXINT]        = 7, +	[IRQ_AEMIFINT]                  = 7, +	[IRQ_DM646X_RESERVED_3]         = 7, +	[IRQ_DM646X_MCASP1TXINT]        = 7,    /* clockevent */ +	[IRQ_TINT0_TINT34]              = 7,    /* clocksource */ +	[IRQ_TINT1_TINT12]              = 7,    /* DSP timer */ +	[IRQ_TINT1_TINT34]              = 7,    /* system tick */ +	[IRQ_PWMINT0]                   = 7, +	[IRQ_PWMINT1]                   = 7, +	[IRQ_DM646X_VLQINT]             = 7, +	[IRQ_I2C]                       = 7, +	[IRQ_UARTINT0]                  = 7, +	[IRQ_UARTINT1]                  = 7, +	[IRQ_DM646X_UARTINT2]           = 7, +	[IRQ_DM646X_SPINT0]             = 7, +	[IRQ_DM646X_SPINT1]             = 7, +	[IRQ_DM646X_DSP2ARMINT]         = 7, +	[IRQ_DM646X_RESERVED_4]         = 7, +	[IRQ_DM646X_PSCINT]             = 7, +	[IRQ_DM646X_GPIO0]              = 7, +	[IRQ_DM646X_GPIO1]              = 7, +	[IRQ_DM646X_GPIO2]              = 7, +	[IRQ_DM646X_GPIO3]              = 7, +	[IRQ_DM646X_GPIO4]              = 7, +	[IRQ_DM646X_GPIO5]              = 7, +	[IRQ_DM646X_GPIO6]              = 7, +	[IRQ_DM646X_GPIO7]              = 7, +	[IRQ_DM646X_GPIOBNK0]           = 7, +	[IRQ_DM646X_GPIOBNK1]           = 7, +	[IRQ_DM646X_GPIOBNK2]           = 7, +	[IRQ_DM646X_DDRINT]             = 7, +	[IRQ_DM646X_AEMIFINT]           = 7, +	[IRQ_COMMTX]                    = 7, +	[IRQ_COMMRX]                    = 7, +	[IRQ_EMUINT]                    = 7, +}; + +/*----------------------------------------------------------------------*/ + +static const s8 dma_chan_dm646x_no_event[] = { +	 0,  1,  2,  3, 13, +	14, 15, 24, 25, 26, +	27, 30, 31, 54, 55, +	56, +	-1 +}; + +static struct edma_soc_info dm646x_edma_info = { +	.n_channel	= 64, +	.n_region	= 6,	/* 0-1, 4-7 */ +	.n_slot		= 512, +	.n_tc		= 4, +	.noevent	= dma_chan_dm646x_no_event, +}; + +static struct resource edma_resources[] = { +	{ +		.name	= "edma_cc", +		.start	= 0x01c00000, +		.end	= 0x01c00000 + SZ_64K - 1, +		.flags	= IORESOURCE_MEM, +	}, +	{ +		.name	= "edma_tc0", +		.start	= 0x01c10000, +		.end	= 0x01c10000 + SZ_1K - 1, +		.flags	= IORESOURCE_MEM, +	}, +	{ +		.name	= "edma_tc1", +		.start	= 0x01c10400, +		.end	= 0x01c10400 + SZ_1K - 1, +		.flags	= IORESOURCE_MEM, +	}, +	{ +		.name	= "edma_tc2", +		.start	= 0x01c10800, +		.end	= 0x01c10800 + SZ_1K - 1, +		.flags	= IORESOURCE_MEM, +	}, +	{ +		.name	= "edma_tc3", +		.start	= 0x01c10c00, +		.end	= 0x01c10c00 + SZ_1K - 1, +		.flags	= IORESOURCE_MEM, +	}, +	{ +		.start	= IRQ_CCINT0, +		.flags	= IORESOURCE_IRQ, +	}, +	{ +		.start	= IRQ_CCERRINT, +		.flags	= IORESOURCE_IRQ, +	}, +	/* not using TC*_ERR */ +}; + +static struct platform_device dm646x_edma_device = { +	.name			= "edma", +	.id			= -1, +	.dev.platform_data	= &dm646x_edma_info, +	.num_resources		= ARRAY_SIZE(edma_resources), +	.resource		= edma_resources, +}; + +/*----------------------------------------------------------------------*/ + +static struct map_desc dm646x_io_desc[] = { +	{ +		.virtual	= IO_VIRT, +		.pfn		= __phys_to_pfn(IO_PHYS), +		.length		= IO_SIZE, +		.type		= MT_DEVICE +	}, +	{ +		.virtual	= SRAM_VIRT, +		.pfn		= __phys_to_pfn(0x00010000), +		.length		= SZ_32K, +		/* MT_MEMORY_NONCACHED requires supersection alignment */ +		.type		= MT_DEVICE, +	}, +}; + +/* Contents of JTAG ID register used to identify exact cpu type */ +static struct davinci_id dm646x_ids[] = { +	{ +		.variant	= 0x0, +		.part_no	= 0xb770, +		.manufacturer	= 0x017, +		.cpu_id		= DAVINCI_CPU_ID_DM6467, +		.name		= "dm6467", +	}, +}; + +static void __iomem *dm646x_psc_bases[] = { +	IO_ADDRESS(DAVINCI_PWR_SLEEP_CNTRL_BASE), +}; + +/* + * T0_BOT: Timer 0, bottom:  clockevent source for hrtimers + * T0_TOP: Timer 0, top   :  clocksource for generic timekeeping + * T1_BOT: Timer 1, bottom:  (used by DSP in TI DSPLink code) + * T1_TOP: Timer 1, top   :  <unused> + */ +struct davinci_timer_info dm646x_timer_info = { +	.timers		= davinci_timer_instance, +	.clockevent_id	= T0_BOT, +	.clocksource_id	= T0_TOP, +}; + +static struct plat_serial8250_port dm646x_serial_platform_data[] = { +	{ +		.mapbase	= DAVINCI_UART0_BASE, +		.irq		= IRQ_UARTINT0, +		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | +				  UPF_IOREMAP, +		.iotype		= UPIO_MEM32, +		.regshift	= 2, +	}, +	{ +		.mapbase	= DAVINCI_UART1_BASE, +		.irq		= IRQ_UARTINT1, +		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | +				  UPF_IOREMAP, +		.iotype		= UPIO_MEM32, +		.regshift	= 2, +	}, +	{ +		.mapbase	= DAVINCI_UART2_BASE, +		.irq		= IRQ_DM646X_UARTINT2, +		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | +				  UPF_IOREMAP, +		.iotype		= UPIO_MEM32, +		.regshift	= 2, +	}, +	{ +		.flags		= 0 +	}, +}; + +static struct platform_device dm646x_serial_device = { +	.name			= "serial8250", +	.id			= PLAT8250_DEV_PLATFORM, +	.dev			= { +		.platform_data	= dm646x_serial_platform_data, +	}, +}; + +static struct davinci_soc_info davinci_soc_info_dm646x = { +	.io_desc		= dm646x_io_desc, +	.io_desc_num		= ARRAY_SIZE(dm646x_io_desc), +	.jtag_id_base		= IO_ADDRESS(0x01c40028), +	.ids			= dm646x_ids, +	.ids_num		= ARRAY_SIZE(dm646x_ids), +	.cpu_clks		= dm646x_clks, +	.psc_bases		= dm646x_psc_bases, +	.psc_bases_num		= ARRAY_SIZE(dm646x_psc_bases), +	.pinmux_base		= IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE), +	.pinmux_pins		= dm646x_pins, +	.pinmux_pins_num	= ARRAY_SIZE(dm646x_pins), +	.intc_base		= IO_ADDRESS(DAVINCI_ARM_INTC_BASE), +	.intc_type		= DAVINCI_INTC_TYPE_AINTC, +	.intc_irq_prios		= dm646x_default_priorities, +	.intc_irq_num		= DAVINCI_N_AINTC_IRQ, +	.timer_info		= &dm646x_timer_info, +	.wdt_base		= IO_ADDRESS(DAVINCI_WDOG_BASE), +	.gpio_base		= IO_ADDRESS(DAVINCI_GPIO_BASE), +	.gpio_num		= 43, /* Only 33 usable */ +	.gpio_irq		= IRQ_DM646X_GPIOBNK0, +	.serial_dev		= &dm646x_serial_device, +	.emac_pdata		= &dm646x_emac_pdata, +	.sram_dma		= 0x10010000, +	.sram_len		= SZ_32K, +}; + +void __init dm646x_init(void) +{ +	davinci_common_init(&davinci_soc_info_dm646x); +} + +static int __init dm646x_init_devices(void) +{ +	if (!cpu_is_davinci_dm646x()) +		return 0; + +	platform_device_register(&dm646x_edma_device); +	platform_device_register(&dm646x_emac_device); +	return 0; +} +postcore_initcall(dm646x_init_devices);  |