diff options
Diffstat (limited to 'arch/arm/mach-s5p6440')
| -rw-r--r-- | arch/arm/mach-s5p6440/Kconfig | 4 | ||||
| -rw-r--r-- | arch/arm/mach-s5p6440/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-s5p6440/cpu.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-s5p6440/dev-spi.c | 176 | ||||
| -rw-r--r-- | arch/arm/mach-s5p6440/gpio.c | 15 | ||||
| -rw-r--r-- | arch/arm/mach-s5p6440/include/mach/map.h | 8 | ||||
| -rw-r--r-- | arch/arm/mach-s5p6440/include/mach/spi-clocks.h | 17 | ||||
| -rw-r--r-- | arch/arm/mach-s5p6440/mach-smdk6440.c | 13 |
8 files changed, 235 insertions, 0 deletions
diff --git a/arch/arm/mach-s5p6440/Kconfig b/arch/arm/mach-s5p6440/Kconfig index 77aeffd17330..f066fae07c57 100644 --- a/arch/arm/mach-s5p6440/Kconfig +++ b/arch/arm/mach-s5p6440/Kconfig @@ -16,6 +16,10 @@ config CPU_S5P6440 config MACH_SMDK6440 bool "SMDK6440" select CPU_S5P6440 + select SAMSUNG_DEV_TS + select SAMSUNG_DEV_ADC + select S3C_DEV_WDT + select HAVE_S3C2410_WATCHDOG help Machine support for the Samsung SMDK6440 diff --git a/arch/arm/mach-s5p6440/Makefile b/arch/arm/mach-s5p6440/Makefile index 44facf43d59f..be3c53aab23f 100644 --- a/arch/arm/mach-s5p6440/Makefile +++ b/arch/arm/mach-s5p6440/Makefile @@ -21,3 +21,4 @@ obj-$(CONFIG_MACH_SMDK6440) += mach-smdk6440.o # device support obj-y += dev-audio.o +obj-$(CONFIG_S3C64XX_DEV_SPI) += dev-spi.o diff --git a/arch/arm/mach-s5p6440/cpu.c b/arch/arm/mach-s5p6440/cpu.c index ca3b3206e6f8..b2fe6a58155a 100644 --- a/arch/arm/mach-s5p6440/cpu.c +++ b/arch/arm/mach-s5p6440/cpu.c @@ -61,6 +61,7 @@ static void s5p6440_idle(void) void __init s5p6440_map_io(void) { /* initialize any device information early */ + s3c_device_adc.name = "s3c64xx-adc"; } void __init s5p6440_init_clocks(int xtal) diff --git a/arch/arm/mach-s5p6440/dev-spi.c b/arch/arm/mach-s5p6440/dev-spi.c new file mode 100644 index 000000000000..0a30280019c0 --- /dev/null +++ b/arch/arm/mach-s5p6440/dev-spi.c @@ -0,0 +1,176 @@ +/* linux/arch/arm/mach-s5p6440/dev-spi.c + * + * Copyright (C) 2010 Samsung Electronics Co. Ltd. + * Jaswinder Singh <jassi.brar@samsung.com> + * + * 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/platform_device.h> +#include <linux/dma-mapping.h> + +#include <mach/dma.h> +#include <mach/map.h> +#include <mach/irqs.h> +#include <mach/gpio.h> +#include <mach/spi-clocks.h> + +#include <plat/s3c64xx-spi.h> +#include <plat/gpio-cfg.h> + +static char *spi_src_clks[] = { + [S5P6440_SPI_SRCCLK_PCLK] = "pclk", + [S5P6440_SPI_SRCCLK_SCLK] = "spi_epll", +}; + +/* SPI Controller platform_devices */ + +/* Since we emulate multi-cs capability, we do not touch the CS. + * The emulated CS is toggled by board specific mechanism, as it can + * be either some immediate GPIO or some signal out of some other + * chip in between ... or some yet another way. + * We simply do not assume anything about CS. + */ +static int s5p6440_spi_cfg_gpio(struct platform_device *pdev) +{ + switch (pdev->id) { + case 0: + s3c_gpio_cfgpin(S5P6440_GPC(0), S3C_GPIO_SFN(2)); + s3c_gpio_cfgpin(S5P6440_GPC(1), S3C_GPIO_SFN(2)); + s3c_gpio_cfgpin(S5P6440_GPC(2), S3C_GPIO_SFN(2)); + s3c_gpio_setpull(S5P6440_GPC(0), S3C_GPIO_PULL_UP); + s3c_gpio_setpull(S5P6440_GPC(1), S3C_GPIO_PULL_UP); + s3c_gpio_setpull(S5P6440_GPC(2), S3C_GPIO_PULL_UP); + break; + + case 1: + s3c_gpio_cfgpin(S5P6440_GPC(4), S3C_GPIO_SFN(2)); + s3c_gpio_cfgpin(S5P6440_GPC(5), S3C_GPIO_SFN(2)); + s3c_gpio_cfgpin(S5P6440_GPC(6), S3C_GPIO_SFN(2)); + s3c_gpio_setpull(S5P6440_GPC(4), S3C_GPIO_PULL_UP); + s3c_gpio_setpull(S5P6440_GPC(5), S3C_GPIO_PULL_UP); + s3c_gpio_setpull(S5P6440_GPC(6), S3C_GPIO_PULL_UP); + break; + + default: + dev_err(&pdev->dev, "Invalid SPI Controller number!"); + return -EINVAL; + } + + return 0; +} + +static struct resource s5p6440_spi0_resource[] = { + [0] = { + .start = S5P6440_PA_SPI0, + .end = S5P6440_PA_SPI0 + 0x100 - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = DMACH_SPI0_TX, + .end = DMACH_SPI0_TX, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = DMACH_SPI0_RX, + .end = DMACH_SPI0_RX, + .flags = IORESOURCE_DMA, + }, + [3] = { + .start = IRQ_SPI0, + .end = IRQ_SPI0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct s3c64xx_spi_info s5p6440_spi0_pdata = { + .cfg_gpio = s5p6440_spi_cfg_gpio, + .fifo_lvl_mask = 0x1ff, + .rx_lvl_offset = 15, +}; + +static u64 spi_dmamask = DMA_BIT_MASK(32); + +struct platform_device s5p6440_device_spi0 = { + .name = "s3c64xx-spi", + .id = 0, + .num_resources = ARRAY_SIZE(s5p6440_spi0_resource), + .resource = s5p6440_spi0_resource, + .dev = { + .dma_mask = &spi_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &s5p6440_spi0_pdata, + }, +}; + +static struct resource s5p6440_spi1_resource[] = { + [0] = { + .start = S5P6440_PA_SPI1, + .end = S5P6440_PA_SPI1 + 0x100 - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = DMACH_SPI1_TX, + .end = DMACH_SPI1_TX, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = DMACH_SPI1_RX, + .end = DMACH_SPI1_RX, + .flags = IORESOURCE_DMA, + }, + [3] = { + .start = IRQ_SPI1, + .end = IRQ_SPI1, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct s3c64xx_spi_info s5p6440_spi1_pdata = { + .cfg_gpio = s5p6440_spi_cfg_gpio, + .fifo_lvl_mask = 0x7f, + .rx_lvl_offset = 15, +}; + +struct platform_device s5p6440_device_spi1 = { + .name = "s3c64xx-spi", + .id = 1, + .num_resources = ARRAY_SIZE(s5p6440_spi1_resource), + .resource = s5p6440_spi1_resource, + .dev = { + .dma_mask = &spi_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &s5p6440_spi1_pdata, + }, +}; + +void __init s5p6440_spi_set_info(int cntrlr, int src_clk_nr, int num_cs) +{ + struct s3c64xx_spi_info *pd; + + /* Reject invalid configuration */ + if (!num_cs || src_clk_nr < 0 + || src_clk_nr > S5P6440_SPI_SRCCLK_SCLK) { + printk(KERN_ERR "%s: Invalid SPI configuration\n", __func__); + return; + } + + switch (cntrlr) { + case 0: + pd = &s5p6440_spi0_pdata; + break; + case 1: + pd = &s5p6440_spi1_pdata; + break; + default: + printk(KERN_ERR "%s: Invalid SPI controller(%d)\n", + __func__, cntrlr); + return; + } + + pd->num_cs = num_cs; + pd->src_clk_nr = src_clk_nr; + pd->src_clk_name = spi_src_clks[src_clk_nr]; +} diff --git a/arch/arm/mach-s5p6440/gpio.c b/arch/arm/mach-s5p6440/gpio.c index 262dc75d5bea..92efc05b1ba2 100644 --- a/arch/arm/mach-s5p6440/gpio.c +++ b/arch/arm/mach-s5p6440/gpio.c @@ -46,6 +46,7 @@ static int s5p6440_gpiolib_rbank_4bit2_input(struct gpio_chip *chip, void __iomem *base = ourchip->base; void __iomem *regcon = base; unsigned long con; + unsigned long flags; switch (offset) { case 6: @@ -63,10 +64,14 @@ static int s5p6440_gpiolib_rbank_4bit2_input(struct gpio_chip *chip, break; } + s3c_gpio_lock(ourchip, flags); + con = __raw_readl(regcon); con &= ~(0xf << con_4bit_shift(offset)); __raw_writel(con, regcon); + s3c_gpio_unlock(ourchip, flags); + return 0; } @@ -78,6 +83,7 @@ static int s5p6440_gpiolib_rbank_4bit2_output(struct gpio_chip *chip, void __iomem *regcon = base; unsigned long con; unsigned long dat; + unsigned long flags; unsigned con_offset = offset; switch (con_offset) { @@ -96,6 +102,8 @@ static int s5p6440_gpiolib_rbank_4bit2_output(struct gpio_chip *chip, break; } + s3c_gpio_lock(ourchip, flags); + con = __raw_readl(regcon); con &= ~(0xf << con_4bit_shift(con_offset)); con |= 0x1 << con_4bit_shift(con_offset); @@ -109,6 +117,8 @@ static int s5p6440_gpiolib_rbank_4bit2_output(struct gpio_chip *chip, __raw_writel(con, regcon); __raw_writel(dat, base + GPIODAT_OFF); + s3c_gpio_unlock(ourchip, flags); + return 0; } @@ -117,6 +127,7 @@ int s5p6440_gpio_setcfg_4bit_rbank(struct s3c_gpio_chip *chip, { void __iomem *reg = chip->base; unsigned int shift; + unsigned long flags; u32 con; switch (off) { @@ -142,11 +153,15 @@ int s5p6440_gpio_setcfg_4bit_rbank(struct s3c_gpio_chip *chip, cfg <<= shift; } + s3c_gpio_lock(chip, flags); + con = __raw_readl(reg); con &= ~(0xf << shift); con |= cfg; __raw_writel(con, reg); + s3c_gpio_unlock(chip, flags); + return 0; } diff --git a/arch/arm/mach-s5p6440/include/mach/map.h b/arch/arm/mach-s5p6440/include/mach/map.h index 72aedadd412c..44011b91fbd1 100644 --- a/arch/arm/mach-s5p6440/include/mach/map.h +++ b/arch/arm/mach-s5p6440/include/mach/map.h @@ -54,6 +54,9 @@ #define S5P6440_PA_IIC0 (0xEC104000) +#define S5P6440_PA_SPI0 0xEC400000 +#define S5P6440_PA_SPI1 0xEC500000 + #define S5P6440_PA_HSOTG (0xED100000) #define S5P6440_PA_HSMMC0 (0xED800000) @@ -69,8 +72,13 @@ /* PCM */ #define S5P6440_PA_PCM 0xF2100000 +#define S5P6440_PA_ADC (0xF3000000) + /* compatibiltiy defines. */ #define S3C_PA_UART S5P6440_PA_UART #define S3C_PA_IIC S5P6440_PA_IIC0 +#define S3C_PA_WDT S5P6440_PA_WDT + +#define SAMSUNG_PA_ADC S5P6440_PA_ADC #endif /* __ASM_ARCH_MAP_H */ diff --git a/arch/arm/mach-s5p6440/include/mach/spi-clocks.h b/arch/arm/mach-s5p6440/include/mach/spi-clocks.h new file mode 100644 index 000000000000..5fbca50d1cfb --- /dev/null +++ b/arch/arm/mach-s5p6440/include/mach/spi-clocks.h @@ -0,0 +1,17 @@ +/* linux/arch/arm/mach-s5p6440/include/mach/spi-clocks.h + * + * Copyright (C) 2010 Samsung Electronics Co. Ltd. + * Jaswinder Singh <jassi.brar@samsung.com> + * + * 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. + */ + +#ifndef __S5P6440_PLAT_SPI_CLKS_H +#define __S5P6440_PLAT_SPI_CLKS_H __FILE__ + +#define S5P6440_SPI_SRCCLK_PCLK 0 +#define S5P6440_SPI_SRCCLK_SCLK 1 + +#endif /* __S5P6440_PLAT_SPI_CLKS_H */ diff --git a/arch/arm/mach-s5p6440/mach-smdk6440.c b/arch/arm/mach-s5p6440/mach-smdk6440.c index d7fede971ca6..8291fecc701a 100644 --- a/arch/arm/mach-s5p6440/mach-smdk6440.c +++ b/arch/arm/mach-s5p6440/mach-smdk6440.c @@ -38,6 +38,8 @@ #include <plat/devs.h> #include <plat/cpu.h> #include <plat/pll.h> +#include <plat/adc.h> +#include <plat/ts.h> #define S5P6440_UCON_DEFAULT (S3C2410_UCON_TXILEVEL | \ S3C2410_UCON_RXILEVEL | \ @@ -85,6 +87,15 @@ static struct s3c2410_uartcfg smdk6440_uartcfgs[] __initdata = { static struct platform_device *smdk6440_devices[] __initdata = { &s5p6440_device_iis, + &s3c_device_adc, + &s3c_device_ts, + &s3c_device_wdt, +}; + +static struct s3c2410_ts_mach_info s3c_ts_platform __initdata = { + .delay = 10000, + .presc = 49, + .oversampling_shift = 2, }; static void __init smdk6440_map_io(void) @@ -96,6 +107,8 @@ static void __init smdk6440_map_io(void) static void __init smdk6440_machine_init(void) { + s3c24xx_ts_set_platdata(&s3c_ts_platform); + platform_add_devices(smdk6440_devices, ARRAY_SIZE(smdk6440_devices)); } |
