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Commit c11c2217 authored Jun 04, 2009 by dmitry pervushin Committed by Russell King Jun 04, 2009

[ARM] 5539/1: Freescale STMP: onboard devices declaration



Define onboard devices for Freescale STMP3xxx boards

Signed-off-by: dmitry pervushin <dpervushin@embeddedalley.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

parent a50808b6

arch/arm/mach-stmp378x/stmp378x.c

+61 −0

Original line number	Diff line number	Diff line
		@@ -19,6 +19,7 @@
		#include <linux/init.h>
		#include <linux/platform_device.h>
		#include <linux/irq.h>
		#include <linux/dma-mapping.h>

		#include <asm/dma.h>
		#include <asm/setup.h>
		@@ -39,6 +40,8 @@
		#include <mach/regs-icoll.h>
		#include <mach/regs-apbh.h>
		#include <mach/regs-apbx.h>
		#include <mach/regs-pxp.h>
		#include <mach/regs-i2c.h>

		#include "stmp378x.h"
		/*
		@@ -232,6 +235,64 @@ static struct map_desc stmp378x_io_desc[] __initdata = {
		},
		};


		static u64 common_dmamask = DMA_BIT_MASK(32);

		/*
		* devices that are present only on stmp378x, not on all 3xxx boards:
		* PxP
		* I2C
		*/
		static struct resource pxp_resource[] = {
		{
		.flags = IORESOURCE_MEM,
		.start = REGS_PXP_PHYS,
		.end = REGS_PXP_PHYS + REGS_PXP_SIZE,
		}, {
		.flags = IORESOURCE_IRQ,
		.start = IRQ_PXP,
		.end = IRQ_PXP,
		},
		};

		struct platform_device stmp378x_pxp = {
		.name = "stmp3xxx-pxp",
		.id = -1,
		.dev = {
		.dma_mask = &common_dmamask,
		.coherent_dma_mask = DMA_BIT_MASK(32),
		},
		.num_resources = ARRAY_SIZE(pxp_resource),
		.resource = pxp_resource,
		};

		static struct resource i2c_resources[] = {
		{
		.flags = IORESOURCE_IRQ,
		.start = IRQ_I2C_ERROR,
		.end = IRQ_I2C_ERROR,
		}, {
		.flags = IORESOURCE_MEM,
		.start = REGS_I2C_PHYS,
		.end = REGS_I2C_PHYS + REGS_I2C_SIZE,
		}, {
		.flags = IORESOURCE_DMA,
		.start = STMP3XXX_DMA(3, STMP3XXX_BUS_APBX),
		.end = STMP3XXX_DMA(3, STMP3XXX_BUS_APBX),
		},
		};

		struct platform_device stmp378x_i2c = {
		.name = "i2c_stmp3xxx",
		.id = 0,
		.dev = {
		.dma_mask = &common_dmamask,
		.coherent_dma_mask = DMA_BIT_MASK(32),
		},
		.resource = i2c_resources,
		.num_resources = ARRAY_SIZE(i2c_resources),
		};

		void __init stmp378x_map_io(void)
		{
		iotable_init(stmp378x_io_desc, ARRAY_SIZE(stmp378x_io_desc));

arch/arm/mach-stmp378x/stmp378x.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -21,4 +21,5 @@
		void stmp378x_map_io(void);
		void stmp378x_init_irq(void);

		extern struct platform_device stmp378x_pxp, stmp378x_i2c;
		#endif /* __MACH_STMP378X_COMMON_H */

arch/arm/mach-stmp378x/stmp378x_devb.c

+254 −0

Original line number	Diff line number	Diff line
		@@ -17,7 +17,12 @@
		*/
		#include <linux/kernel.h>
		#include <linux/init.h>
		#include <linux/io.h>
		#include <linux/platform_device.h>
		#include <linux/delay.h>
		#include <linux/clk.h>
		#include <linux/err.h>
		#include <linux/spi/spi.h>

		#include <asm/setup.h>
		#include <asm/mach-types.h>
		@@ -25,12 +30,39 @@

		#include <mach/pins.h>
		#include <mach/pinmux.h>
		#include <mach/platform.h>
		#include <mach/stmp3xxx.h>
		#include <mach/mmc.h>
		#include <mach/gpmi.h>

		#include "stmp378x.h"

		static struct platform_device *devices[] = {
		&stmp3xxx_dbguart,
		&stmp3xxx_appuart,
		&stmp3xxx_watchdog,
		&stmp3xxx_touchscreen,
		&stmp3xxx_rtc,
		&stmp3xxx_keyboard,
		&stmp3xxx_framebuffer,
		&stmp3xxx_backlight,
		&stmp3xxx_rotdec,
		&stmp3xxx_persistent,
		&stmp3xxx_dcp_bootstream,
		&stmp3xxx_dcp,
		&stmp3xxx_battery,
		&stmp378x_pxp,
		&stmp378x_i2c,
		};

		static struct pin_desc i2c_pins_desc[] = {
		{ PINID_I2C_SCL, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
		{ PINID_I2C_SDA, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
		};

		static struct pin_group i2c_pins = {
		.pins = i2c_pins_desc,
		.nr_pins = ARRAY_SIZE(i2c_pins_desc),
		};

		static struct pin_desc dbguart_pins_0[] = {
		@@ -56,6 +88,215 @@ static int dbguart_pins_control(int id, int request)
		return r;
		}

		static struct pin_desc appuart_pins_0[] = {
		{ PINID_AUART1_CTS, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
		{ PINID_AUART1_RTS, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
		{ PINID_AUART1_RX, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
		{ PINID_AUART1_TX, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
		};

		static struct pin_desc appuart_pins_1[] = {
		#if 0 /* enable these when second appuart will be connected */
		{ PINID_AUART2_CTS, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
		{ PINID_AUART2_RTS, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
		{ PINID_AUART2_RX, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
		{ PINID_AUART2_TX, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
		#endif
		};

		static struct pin_desc mmc_pins_desc[] = {
		{ PINID_SSP1_DATA0, PIN_FUN1, PIN_8MA, PIN_3_3V, 1 },
		{ PINID_SSP1_DATA1, PIN_FUN1, PIN_8MA, PIN_3_3V, 1 },
		{ PINID_SSP1_DATA2, PIN_FUN1, PIN_8MA, PIN_3_3V, 1 },
		{ PINID_SSP1_DATA3, PIN_FUN1, PIN_8MA, PIN_3_3V, 1 },
		{ PINID_SSP1_CMD, PIN_FUN1, PIN_8MA, PIN_3_3V, 1 },
		{ PINID_SSP1_SCK, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 },
		{ PINID_SSP1_DETECT, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 },
		};

		static struct pin_group mmc_pins = {
		.pins = mmc_pins_desc,
		.nr_pins = ARRAY_SIZE(mmc_pins_desc),
		};

		static int stmp3xxxmmc_get_wp(void)
		{
		return gpio_get_value(PINID_PWM4);
		}

		static int stmp3xxxmmc_hw_init_ssp1(void)
		{
		int ret;

		ret = stmp3xxx_request_pin_group(&mmc_pins, "mmc");
		if (ret)
		goto out;

		/* Configure write protect GPIO pin */
		ret = gpio_request(PINID_PWM4, "mmc wp");
		if (ret)
		goto out_wp;

		gpio_direction_input(PINID_PWM4);

		/* Configure POWER pin as gpio to drive power to MMC slot */
		ret = gpio_request(PINID_PWM3, "mmc power");
		if (ret)
		goto out_power;

		gpio_direction_output(PINID_PWM3, 0);
		mdelay(100);

		return 0;

		out_power:
		gpio_free(PINID_PWM4);
		out_wp:
		stmp3xxx_release_pin_group(&mmc_pins, "mmc");
		out:
		return ret;
		}

		static void stmp3xxxmmc_hw_release_ssp1(void)
		{
		gpio_free(PINID_PWM3);
		gpio_free(PINID_PWM4);
		stmp3xxx_release_pin_group(&mmc_pins, "mmc");
		}

		static void stmp3xxxmmc_cmd_pullup_ssp1(int enable)
		{
		stmp3xxx_pin_pullup(PINID_SSP1_CMD, enable, "mmc");
		}

		static unsigned long
		stmp3xxxmmc_setclock_ssp1(void __iomem *base, unsigned long hz)
		{
		struct clk ssp, parent;
		char *p;
		long r;

		ssp = clk_get(NULL, "ssp");

		/* using SSP1, no timeout, clock rate 1 */
		writel(BF(2, SSP_TIMING_CLOCK_DIVIDE) \|
		BF(0xFFFF, SSP_TIMING_TIMEOUT),
		base + HW_SSP_TIMING);

		p = (hz > 1000000) ? "io" : "osc_24M";
		parent = clk_get(NULL, p);
		clk_set_parent(ssp, parent);
		r = clk_set_rate(ssp, 2 * hz / 1000);
		clk_put(parent);
		clk_put(ssp);

		return hz;
		}

		static struct stmp3xxxmmc_platform_data mmc_data = {
		.hw_init = stmp3xxxmmc_hw_init_ssp1,
		.hw_release = stmp3xxxmmc_hw_release_ssp1,
		.get_wp = stmp3xxxmmc_get_wp,
		.cmd_pullup = stmp3xxxmmc_cmd_pullup_ssp1,
		.setclock = stmp3xxxmmc_setclock_ssp1,
		};


		static struct pin_group appuart_pins[] = {
		[0] = {
		.pins = appuart_pins_0,
		.nr_pins = ARRAY_SIZE(appuart_pins_0),
		},
		[1] = {
		.pins = appuart_pins_1,
		.nr_pins = ARRAY_SIZE(appuart_pins_1),
		},
		};

		static struct pin_desc ssp1_pins_desc[] = {
		{ PINID_SSP1_SCK, PIN_FUN1, PIN_8MA, PIN_3_3V, 0, },
		{ PINID_SSP1_CMD, PIN_FUN1, PIN_4MA, PIN_3_3V, 0, },
		{ PINID_SSP1_DATA0, PIN_FUN1, PIN_4MA, PIN_3_3V, 0, },
		{ PINID_SSP1_DATA3, PIN_FUN1, PIN_4MA, PIN_3_3V, 0, },
		};

		static struct pin_desc ssp2_pins_desc[] = {
		{ PINID_GPMI_WRN, PIN_FUN3, PIN_8MA, PIN_3_3V, 0, },
		{ PINID_GPMI_RDY1, PIN_FUN3, PIN_4MA, PIN_3_3V, 0, },
		{ PINID_GPMI_D00, PIN_FUN3, PIN_4MA, PIN_3_3V, 0, },
		{ PINID_GPMI_D03, PIN_FUN3, PIN_4MA, PIN_3_3V, 0, },
		};

		static struct pin_group ssp1_pins = {
		.pins = ssp1_pins_desc,
		.nr_pins = ARRAY_SIZE(ssp1_pins_desc),
		};

		static struct pin_group ssp2_pins = {
		.pins = ssp1_pins_desc,
		.nr_pins = ARRAY_SIZE(ssp2_pins_desc),
		};

		static struct pin_desc gpmi_pins_desc[] = {
		{ PINID_GPMI_CE0N, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
		{ PINID_GPMI_CE1N, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
		{ PINID_GMPI_CE2N, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
		{ PINID_GPMI_CLE, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
		{ PINID_GPMI_ALE, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
		{ PINID_GPMI_WPN, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 },
		{ PINID_GPMI_RDY1, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
		{ PINID_GPMI_D00, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
		{ PINID_GPMI_D01, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
		{ PINID_GPMI_D02, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
		{ PINID_GPMI_D03, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
		{ PINID_GPMI_D04, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
		{ PINID_GPMI_D05, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
		{ PINID_GPMI_D06, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
		{ PINID_GPMI_D07, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
		{ PINID_GPMI_RDY0, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
		{ PINID_GPMI_RDY2, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
		{ PINID_GPMI_RDY3, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
		{ PINID_GPMI_WRN, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 },
		{ PINID_GPMI_RDN, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 },
		};

		static struct pin_group gpmi_pins = {
		.pins = gpmi_pins_desc,
		.nr_pins = ARRAY_SIZE(gpmi_pins_desc),
		};

		static struct mtd_partition gpmi_partitions[] = {
		[0] = {
		.name = "boot",
		.size = 10 * SZ_1M,
		.offset = 0,
		},
		[1] = {
		.name = "data",
		.size = MTDPART_SIZ_FULL,
		.offset = MTDPART_OFS_APPEND,
		},
		};

		static struct gpmi_platform_data gpmi_data = {
		.pins = &gpmi_pins,
		.nr_parts = ARRAY_SIZE(gpmi_partitions),
		.parts = gpmi_partitions,
		.part_types = { "cmdline", NULL },
		};

		static struct spi_board_info spi_board_info[] __initdata = {
		#if defined(CONFIG_ENC28J60) \|\| defined(CONFIG_ENC28J60_MODULE)
		{
		.modalias = "enc28j60",
		.max_speed_hz = 6 * 1000 * 1000,
		.bus_num = 1,
		.chip_select = 0,
		.platform_data = NULL,
		},
		#endif
		};

		static void __init stmp378x_devb_init(void)
		{
		stmp3xxx_pinmux_init(NR_REAL_IRQS);
		@@ -64,9 +305,22 @@ static void __init stmp378x_devb_init(void)
		stmp3xxx_init();

		stmp3xxx_dbguart.dev.platform_data = dbguart_pins_control;
		stmp3xxx_appuart.dev.platform_data = appuart_pins;
		stmp3xxx_mmc.dev.platform_data = &mmc_data;
		stmp3xxx_gpmi.dev.platform_data = &gpmi_data;
		stmp3xxx_spi1.dev.platform_data = &ssp1_pins;
		stmp3xxx_spi2.dev.platform_data = &ssp2_pins;
		stmp378x_i2c.dev.platform_data = &i2c_pins;

		/* register spi devices */
		spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));

		/* add board's devices */
		platform_add_devices(devices, ARRAY_SIZE(devices));

		/* add devices selected by command line ssp1= and ssp2= options */
		stmp3xxx_ssp1_device_register();
		stmp3xxx_ssp2_device_register();
		}

		MACHINE_START(STMP378X, "STMP378X")

arch/arm/mach-stmp37xx/stmp37xx_devb.c

+18 −0

Original line number	Diff line number	Diff line
		@@ -33,6 +33,7 @@
		*/
		static struct platform_device *stmp37xx_devb_devices[] = {
		&stmp3xxx_dbguart,
		&stmp3xxx_appuart,
		};

		static struct pin_desc dbguart_pins_0[] = {
		@@ -40,6 +41,21 @@ static struct pin_desc dbguart_pins_0[] = {
		{ PINID_PWM1, PIN_FUN3, },
		};

		struct pin_desc appuart_pins_0[] = {
		{ PINID_UART2_CTS, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
		{ PINID_UART2_RTS, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
		{ PINID_UART2_RX, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
		{ PINID_UART2_TX, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
		};

		static struct pin_group appuart_pins[] = {
		[0] = {
		.pins = appuart_pins_0,
		.nr_pins = ARRAY_SIZE(appuart_pins_0),
		},
		/* 37xx has the only app uart */
		};

		static struct pin_group dbguart_pins[] = {
		[0] = {
		.pins = dbguart_pins_0,
		@@ -67,6 +83,8 @@ static void __init stmp37xx_devb_init(void)
		stmp3xxx_init();

		stmp3xxx_dbguart.dev.platform_data = dbguart_pins_control;
		stmp3xxx_appuart.dev.platform_data = appuart_pins;

		/* Add STMP37xx development board devices */
		platform_add_devices(stmp37xx_devb_devices,
		ARRAY_SIZE(stmp37xx_devb_devices));

arch/arm/plat-stmp3xxx/Makefile

+1 −1

Original line number	Diff line number	Diff line
		@@ -2,4 +2,4 @@
		# Makefile for the linux kernel.
		#
		# Object file lists.
		obj-y += core.o timer.o irq.o dma.o clock.o pinmux.o
		obj-y += core.o timer.o irq.o dma.o clock.o pinmux.o devices.o