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author | dmitry pervushin <dpervushin@embeddedalley.com> | 2009-06-04 13:51:05 +0100 |
---|---|---|
committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-06-04 14:16:45 +0100 |
commit | c11c22177ae2929598051a39e4655be4a42cb805 (patch) | |
tree | e003e7c2ef7c78b1cc6281e30a3031af59782a5f /arch/arm/mach-stmp378x | |
parent | a50808b6c4e0e25a72314391d70479447e3ce092 (diff) | |
download | kernel_samsung_crespo-c11c22177ae2929598051a39e4655be4a42cb805.zip kernel_samsung_crespo-c11c22177ae2929598051a39e4655be4a42cb805.tar.gz kernel_samsung_crespo-c11c22177ae2929598051a39e4655be4a42cb805.tar.bz2 |
[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>
Diffstat (limited to 'arch/arm/mach-stmp378x')
-rw-r--r-- | arch/arm/mach-stmp378x/stmp378x.c | 61 | ||||
-rw-r--r-- | arch/arm/mach-stmp378x/stmp378x.h | 1 | ||||
-rw-r--r-- | arch/arm/mach-stmp378x/stmp378x_devb.c | 254 |
3 files changed, 316 insertions, 0 deletions
diff --git a/arch/arm/mach-stmp378x/stmp378x.c b/arch/arm/mach-stmp378x/stmp378x.c index 9a363fb..ddd49a7 100644 --- a/arch/arm/mach-stmp378x/stmp378x.c +++ b/arch/arm/mach-stmp378x/stmp378x.c @@ -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)); diff --git a/arch/arm/mach-stmp378x/stmp378x.h b/arch/arm/mach-stmp378x/stmp378x.h index 473de64..0dc15b3 100644 --- a/arch/arm/mach-stmp378x/stmp378x.h +++ b/arch/arm/mach-stmp378x/stmp378x.h @@ -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 */ diff --git a/arch/arm/mach-stmp378x/stmp378x_devb.c b/arch/arm/mach-stmp378x/stmp378x_devb.c index bc643f6..90d8fe6 100644 --- a/arch/arm/mach-stmp378x/stmp378x_devb.c +++ b/arch/arm/mach-stmp378x/stmp378x_devb.c @@ -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") |