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author | Ben Dooks <ben-linux@fluff.org> | 2008-12-18 16:17:37 +0000 |
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committer | Ben Dooks <ben-linux@fluff.org> | 2008-12-18 16:17:37 +0000 |
commit | 56c035c9ce1f1850969778af6a4cc0b99089b6c8 (patch) | |
tree | b6f1998be0c1e6bb623a0c55e8ba04d74bb58cf2 /arch/arm/plat-s3c24xx | |
parent | 7f2754378f3522a42daafdbb9d2385f341008454 (diff) | |
parent | 438a5d42e052ec6126c5f1e24763b711210db33e (diff) | |
download | talos-op-linux-56c035c9ce1f1850969778af6a4cc0b99089b6c8.tar.gz talos-op-linux-56c035c9ce1f1850969778af6a4cc0b99089b6c8.zip |
Merge branch 'next-s3c64xx-device' into next-merged
Conflicts:
arch/arm/mach-s3c2440/mach-at2440evb.c
Diffstat (limited to 'arch/arm/plat-s3c24xx')
-rw-r--r-- | arch/arm/plat-s3c24xx/Makefile | 3 | ||||
-rw-r--r-- | arch/arm/plat-s3c24xx/devs.c | 55 | ||||
-rw-r--r-- | arch/arm/plat-s3c24xx/gpiolib.c | 125 | ||||
-rw-r--r-- | arch/arm/plat-s3c24xx/include/plat/map.h | 1 | ||||
-rw-r--r-- | arch/arm/plat-s3c24xx/s3c244x.c | 2 | ||||
-rw-r--r-- | arch/arm/plat-s3c24xx/setup-i2c.c | 25 |
6 files changed, 35 insertions, 176 deletions
diff --git a/arch/arm/plat-s3c24xx/Makefile b/arch/arm/plat-s3c24xx/Makefile index a8cfdefc29e9..1e0767b266b8 100644 --- a/arch/arm/plat-s3c24xx/Makefile +++ b/arch/arm/plat-s3c24xx/Makefile @@ -33,6 +33,9 @@ obj-$(CONFIG_S3C2410_CLOCK) += s3c2410-clock.o obj-$(CONFIG_S3C2410_DMA) += dma.o obj-$(CONFIG_S3C24XX_ADC) += adc.o +# device specific setup and/or initialisation +obj-$(CONFIG_ARCH_S3C2410) += setup-i2c.o + # SPI gpio central GPIO functions obj-$(CONFIG_S3C24XX_SPI_BUS0_GPE11_GPE12_GPE13) += spi-bus0-gpe11_12_13.o diff --git a/arch/arm/plat-s3c24xx/devs.c b/arch/arm/plat-s3c24xx/devs.c index 9826efb91e48..14d4f0bc1253 100644 --- a/arch/arm/plat-s3c24xx/devs.c +++ b/arch/arm/plat-s3c24xx/devs.c @@ -271,31 +271,6 @@ struct platform_device s3c_device_wdt = { EXPORT_SYMBOL(s3c_device_wdt); -/* I2C */ - -static struct resource s3c_i2c_resource[] = { - [0] = { - .start = S3C24XX_PA_IIC, - .end = S3C24XX_PA_IIC + S3C24XX_SZ_IIC - 1, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_IIC, - .end = IRQ_IIC, - .flags = IORESOURCE_IRQ, - } - -}; - -struct platform_device s3c_device_i2c = { - .name = "s3c2410-i2c", - .id = -1, - .num_resources = ARRAY_SIZE(s3c_i2c_resource), - .resource = s3c_i2c_resource, -}; - -EXPORT_SYMBOL(s3c_device_i2c); - /* IIS */ static struct resource s3c_iis_resource[] = { @@ -411,36 +386,6 @@ struct platform_device s3c_device_sdi = { EXPORT_SYMBOL(s3c_device_sdi); -/* High-speed MMC/SD */ - -static struct resource s3c_hsmmc_resource[] = { - [0] = { - .start = S3C2443_PA_HSMMC, - .end = S3C2443_PA_HSMMC + S3C2443_SZ_HSMMC - 1, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_S3C2443_HSMMC, - .end = IRQ_S3C2443_HSMMC, - .flags = IORESOURCE_IRQ, - } -}; - -static u64 s3c_device_hsmmc_dmamask = 0xffffffffUL; - -struct platform_device s3c_device_hsmmc = { - .name = "s3c-sdhci", - .id = -1, - .num_resources = ARRAY_SIZE(s3c_hsmmc_resource), - .resource = s3c_hsmmc_resource, - .dev = { - .dma_mask = &s3c_device_hsmmc_dmamask, - .coherent_dma_mask = 0xffffffffUL - } -}; - - - /* SPI (0) */ static struct resource s3c_spi0_resource[] = { diff --git a/arch/arm/plat-s3c24xx/gpiolib.c b/arch/arm/plat-s3c24xx/gpiolib.c index b07c2d0dd533..f95c6c9d9f1a 100644 --- a/arch/arm/plat-s3c24xx/gpiolib.c +++ b/arch/arm/plat-s3c24xx/gpiolib.c @@ -19,104 +19,12 @@ #include <linux/io.h> #include <linux/gpio.h> +#include <plat/gpio-core.h> #include <mach/hardware.h> #include <asm/irq.h> #include <mach/regs-gpio.h> -struct s3c24xx_gpio_chip { - struct gpio_chip chip; - void __iomem *base; -}; - -static inline struct s3c24xx_gpio_chip *to_s3c_chip(struct gpio_chip *gpc) -{ - return container_of(gpc, struct s3c24xx_gpio_chip, chip); -} - -/* these routines are exported for use by other parts of the platform - * and system support, but are not intended to be used directly by the - * drivers themsevles. - */ - -static int s3c24xx_gpiolib_input(struct gpio_chip *chip, unsigned offset) -{ - struct s3c24xx_gpio_chip *ourchip = to_s3c_chip(chip); - void __iomem *base = ourchip->base; - unsigned long flags; - unsigned long con; - - local_irq_save(flags); - - con = __raw_readl(base + 0x00); - con &= ~(3 << (offset * 2)); - con |= (S3C2410_GPIO_OUTPUT & 0xf) << (offset * 2); - - __raw_writel(con, base + 0x00); - - local_irq_restore(flags); - return 0; -} - -static int s3c24xx_gpiolib_output(struct gpio_chip *chip, - unsigned offset, int value) -{ - struct s3c24xx_gpio_chip *ourchip = to_s3c_chip(chip); - void __iomem *base = ourchip->base; - unsigned long flags; - unsigned long dat; - unsigned long con; - - local_irq_save(flags); - - dat = __raw_readl(base + 0x04); - dat &= ~(1 << offset); - if (value) - dat |= 1 << offset; - __raw_writel(dat, base + 0x04); - - con = __raw_readl(base + 0x00); - con &= ~(3 << (offset * 2)); - con |= (S3C2410_GPIO_OUTPUT & 0xf) << (offset * 2); - - __raw_writel(con, base + 0x00); - __raw_writel(dat, base + 0x04); - - local_irq_restore(flags); - return 0; -} - -static void s3c24xx_gpiolib_set(struct gpio_chip *chip, - unsigned offset, int value) -{ - struct s3c24xx_gpio_chip *ourchip = to_s3c_chip(chip); - void __iomem *base = ourchip->base; - unsigned long flags; - unsigned long dat; - - local_irq_save(flags); - - dat = __raw_readl(base + 0x04); - dat &= ~(1 << offset); - if (value) - dat |= 1 << offset; - __raw_writel(dat, base + 0x04); - - local_irq_restore(flags); -} - -static int s3c24xx_gpiolib_get(struct gpio_chip *chip, unsigned offset) -{ - struct s3c24xx_gpio_chip *ourchip = to_s3c_chip(chip); - unsigned long val; - - val = __raw_readl(ourchip->base + 0x04); - val >>= offset; - val &= 1; - - return val; -} - static int s3c24xx_gpiolib_banka_input(struct gpio_chip *chip, unsigned offset) { return -EINVAL; @@ -125,7 +33,7 @@ static int s3c24xx_gpiolib_banka_input(struct gpio_chip *chip, unsigned offset) static int s3c24xx_gpiolib_banka_output(struct gpio_chip *chip, unsigned offset, int value) { - struct s3c24xx_gpio_chip *ourchip = to_s3c_chip(chip); + struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip); void __iomem *base = ourchip->base; unsigned long flags; unsigned long dat; @@ -151,7 +59,7 @@ static int s3c24xx_gpiolib_banka_output(struct gpio_chip *chip, return 0; } -static struct s3c24xx_gpio_chip gpios[] = { +struct s3c_gpio_chip s3c24xx_gpios[] = { [0] = { .base = S3C24XX_GPIO_BASE(S3C2410_GPA0), .chip = { @@ -219,34 +127,13 @@ static struct s3c24xx_gpio_chip gpios[] = { }, }; -static __init void s3c24xx_gpiolib_add(struct s3c24xx_gpio_chip *chip) -{ - struct gpio_chip *gc = &chip->chip; - - BUG_ON(!chip->base); - BUG_ON(!gc->label); - BUG_ON(!gc->ngpio); - - if (!gc->direction_input) - gc->direction_input = s3c24xx_gpiolib_input; - if (!gc->direction_output) - gc->direction_output = s3c24xx_gpiolib_output; - if (!gc->set) - gc->set = s3c24xx_gpiolib_set; - if (!gc->get) - gc->get = s3c24xx_gpiolib_get; - - /* gpiochip_add() prints own failure message on error. */ - gpiochip_add(gc); -} - static __init int s3c24xx_gpiolib_init(void) { - struct s3c24xx_gpio_chip *chip = gpios; + struct s3c_gpio_chip *chip = s3c24xx_gpios; int gpn; - for (gpn = 0; gpn < ARRAY_SIZE(gpios); gpn++, chip++) - s3c24xx_gpiolib_add(chip); + for (gpn = 0; gpn < ARRAY_SIZE(s3c24xx_gpios); gpn++, chip++) + s3c_gpiolib_add(chip); return 0; } diff --git a/arch/arm/plat-s3c24xx/include/plat/map.h b/arch/arm/plat-s3c24xx/include/plat/map.h index e7be0c0d3702..fef8ea8b8e1e 100644 --- a/arch/arm/plat-s3c24xx/include/plat/map.h +++ b/arch/arm/plat-s3c24xx/include/plat/map.h @@ -51,7 +51,6 @@ /* Standard size definitions for peripheral blocks. */ -#define S3C24XX_SZ_IIC SZ_1M #define S3C24XX_SZ_IIS SZ_1M #define S3C24XX_SZ_ADC SZ_1M #define S3C24XX_SZ_SPI SZ_1M diff --git a/arch/arm/plat-s3c24xx/s3c244x.c b/arch/arm/plat-s3c24xx/s3c244x.c index 494368403055..c1de6bb0101b 100644 --- a/arch/arm/plat-s3c24xx/s3c244x.c +++ b/arch/arm/plat-s3c24xx/s3c244x.c @@ -68,7 +68,7 @@ void __init s3c244x_map_io(void) /* rename any peripherals used differing from the s3c2410 */ s3c_device_sdi.name = "s3c2440-sdi"; - s3c_device_i2c.name = "s3c2440-i2c"; + s3c_device_i2c0.name = "s3c2440-i2c"; s3c_device_nand.name = "s3c2440-nand"; s3c_device_usbgadget.name = "s3c2440-usbgadget"; } diff --git a/arch/arm/plat-s3c24xx/setup-i2c.c b/arch/arm/plat-s3c24xx/setup-i2c.c new file mode 100644 index 000000000000..d62b7e7fb355 --- /dev/null +++ b/arch/arm/plat-s3c24xx/setup-i2c.c @@ -0,0 +1,25 @@ +/* linux/arch/arm/plat-s3c24xx/setup-i2c.c + * + * Copyright 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * S3C24XX Base setup for i2c device + * + * 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/kernel.h> + +struct platform_device; + +#include <plat/iic.h> +#include <mach/hardware.h> +#include <mach/regs-gpio.h> + +void s3c_i2c0_cfg_gpio(struct platform_device *dev) +{ + s3c2410_gpio_cfgpin(S3C2410_GPE15, S3C2410_GPE15_IICSDA); + s3c2410_gpio_cfgpin(S3C2410_GPE14, S3C2410_GPE14_IICSCL); +} |