diff options
88 files changed, 940 insertions, 214 deletions
diff --git a/Documentation/arm/Samsung-S3C24XX/GPIO.txt b/Documentation/arm/Samsung-S3C24XX/GPIO.txt index b5d20c0b2ab..ea7ccfc4b27 100644 --- a/Documentation/arm/Samsung-S3C24XX/GPIO.txt +++ b/Documentation/arm/Samsung-S3C24XX/GPIO.txt @@ -13,6 +13,21 @@ Introduction data-sheet/users manual to find out the complete list. +GPIOLIB +------- + + With the event of the GPIOLIB in drivers/gpio, support for some + of the GPIO functions such as reading and writing a pin will + be removed in favour of this common access method. + + Once all the extant drivers have been converted, the functions + listed below will be removed (they may be marked as __deprecated + in the near future). + + - s3c2410_gpio_getpin + - s3c2410_gpio_setpin + + Headers ------- diff --git a/Documentation/arm/Samsung-S3C24XX/Overview.txt b/Documentation/arm/Samsung-S3C24XX/Overview.txt index 014a8ec4877..cff6227b448 100644 --- a/Documentation/arm/Samsung-S3C24XX/Overview.txt +++ b/Documentation/arm/Samsung-S3C24XX/Overview.txt @@ -8,9 +8,10 @@ Introduction The Samsung S3C24XX range of ARM9 System-on-Chip CPUs are supported by the 's3c2410' architecture of ARM Linux. Currently the S3C2410, - S3C2412, S3C2413, S3C2440 and S3C2442 devices are supported. + S3C2412, S3C2413, S3C2440, S3C2442 and S3C2443 devices are supported. + + Support for the S3C2400 and S3C24A0 series are in progress. - Support for the S3C2400 series is in progress. Configuration ------------- @@ -38,6 +39,22 @@ Layout Register, kernel and platform data definitions are held in the arch/arm/mach-s3c2410 directory./include/mach +arch/arm/plat-s3c24xx: + + Files in here are either common to all the s3c24xx family, + or are common to only some of them with names to indicate this + status. The files that are not common to all are generally named + with the initial cpu they support in the series to ensure a short + name without any possibility of confusion with newer devices. + + As an example, initially s3c244x would cover s3c2440 and s3c2442, but + with the s3c2443 which does not share many of the same drivers in + this directory, the name becomes invalid. We stick to s3c2440-<x> + to indicate a driver that is s3c2440 and s3c2442 compatible. + + This does mean that to find the status of any given SoC, a number + of directories may need to be searched. + Machines -------- @@ -159,6 +176,17 @@ NAND For more information see Documentation/arm/Samsung-S3C24XX/NAND.txt +SD/MMC +------ + + The SD/MMC hardware pre S3C2443 is supported in the current + kernel, the driver is drivers/mmc/host/s3cmci.c and supports + 1 and 4 bit SD or MMC cards. + + The SDIO behaviour of this driver has not been fully tested. There is no + current support for hardware SDIO interrupts. + + Serial ------ @@ -178,6 +206,9 @@ GPIO The core contains support for manipulating the GPIO, see the documentation in GPIO.txt in the same directory as this file. + Newer kernels carry GPIOLIB, and support is being moved towards + this with some of the older support in line to be removed. + Clock Management ---------------- diff --git a/arch/arm/boot/compressed/.gitignore b/arch/arm/boot/compressed/.gitignore index b15f927a592..ab204db594d 100644 --- a/arch/arm/boot/compressed/.gitignore +++ b/arch/arm/boot/compressed/.gitignore @@ -1,2 +1,3 @@ -piggy.gz font.c +piggy.gz +vmlinux.lds diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c index 69130f36590..aecc6c3f908 100644 --- a/arch/arm/common/dmabounce.c +++ b/arch/arm/common/dmabounce.c @@ -246,9 +246,9 @@ map_single(struct device *dev, void *ptr, size_t size, } dev_dbg(dev, - "%s: unsafe buffer %p (phy=%p) mapped to %p (phy=%p)\n", - __func__, buf->ptr, (void *) virt_to_dma(dev, buf->ptr), - buf->safe, (void *) buf->safe_dma_addr); + "%s: unsafe buffer %p (dma=%#x) mapped to %p (dma=%#x)\n", + __func__, buf->ptr, virt_to_dma(dev, buf->ptr), + buf->safe, buf->safe_dma_addr); if ((dir == DMA_TO_DEVICE) || (dir == DMA_BIDIRECTIONAL)) { @@ -292,9 +292,9 @@ unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size, BUG_ON(buf->size != size); dev_dbg(dev, - "%s: unsafe buffer %p (phy=%p) mapped to %p (phy=%p)\n", - __func__, buf->ptr, (void *) virt_to_dma(dev, buf->ptr), - buf->safe, (void *) buf->safe_dma_addr); + "%s: unsafe buffer %p (dma=%#x) mapped to %p (dma=%#x)\n", + __func__, buf->ptr, virt_to_dma(dev, buf->ptr), + buf->safe, buf->safe_dma_addr); DO_STATS ( device_info->bounce_count++ ); @@ -321,9 +321,8 @@ unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size, } } -static inline void -sync_single(struct device *dev, dma_addr_t dma_addr, size_t size, - enum dma_data_direction dir) +static int sync_single(struct device *dev, dma_addr_t dma_addr, size_t size, + enum dma_data_direction dir) { struct dmabounce_device_info *device_info = dev->archdata.dmabounce; struct safe_buffer *buf = NULL; @@ -355,9 +354,9 @@ sync_single(struct device *dev, dma_addr_t dma_addr, size_t size, */ dev_dbg(dev, - "%s: unsafe buffer %p (phy=%p) mapped to %p (phy=%p)\n", - __func__, buf->ptr, (void *) virt_to_dma(dev, buf->ptr), - buf->safe, (void *) buf->safe_dma_addr); + "%s: unsafe buffer %p (dma=%#x) mapped to %p (dma=%#x)\n", + __func__, buf->ptr, virt_to_dma(dev, buf->ptr), + buf->safe, buf->safe_dma_addr); DO_STATS ( device_info->bounce_count++ ); @@ -383,8 +382,9 @@ sync_single(struct device *dev, dma_addr_t dma_addr, size_t size, * No need to sync the safe buffer - it was allocated * via the coherent allocators. */ + return 0; } else { - dma_cache_maint(dma_to_virt(dev, dma_addr), size, dir); + return 1; } } @@ -474,25 +474,29 @@ dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, } } -void -dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_addr, size_t size, - enum dma_data_direction dir) +void dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_addr, + unsigned long offset, size_t size, + enum dma_data_direction dir) { - dev_dbg(dev, "%s(ptr=%p,size=%d,dir=%x)\n", - __func__, (void *) dma_addr, size, dir); + dev_dbg(dev, "%s(dma=%#x,off=%#lx,size=%zx,dir=%x)\n", + __func__, dma_addr, offset, size, dir); - sync_single(dev, dma_addr, size, dir); + if (sync_single(dev, dma_addr, offset + size, dir)) + dma_cache_maint(dma_to_virt(dev, dma_addr) + offset, size, dir); } +EXPORT_SYMBOL(dma_sync_single_range_for_cpu); -void -dma_sync_single_for_device(struct device *dev, dma_addr_t dma_addr, size_t size, - enum dma_data_direction dir) +void dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_addr, + unsigned long offset, size_t size, + enum dma_data_direction dir) { - dev_dbg(dev, "%s(ptr=%p,size=%d,dir=%x)\n", - __func__, (void *) dma_addr, size, dir); + dev_dbg(dev, "%s(dma=%#x,off=%#lx,size=%zx,dir=%x)\n", + __func__, dma_addr, offset, size, dir); - sync_single(dev, dma_addr, size, dir); + if (sync_single(dev, dma_addr, offset + size, dir)) + dma_cache_maint(dma_to_virt(dev, dma_addr) + offset, size, dir); } +EXPORT_SYMBOL(dma_sync_single_range_for_device); void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nents, @@ -644,8 +648,6 @@ EXPORT_SYMBOL(dma_map_single); EXPORT_SYMBOL(dma_unmap_single); EXPORT_SYMBOL(dma_map_sg); EXPORT_SYMBOL(dma_unmap_sg); -EXPORT_SYMBOL(dma_sync_single_for_cpu); -EXPORT_SYMBOL(dma_sync_single_for_device); EXPORT_SYMBOL(dma_sync_sg_for_cpu); EXPORT_SYMBOL(dma_sync_sg_for_device); EXPORT_SYMBOL(dmabounce_register_dev); diff --git a/arch/arm/configs/orion5x_defconfig b/arch/arm/configs/orion5x_defconfig index 9578b5d9f9c..1464ffe7171 100644 --- a/arch/arm/configs/orion5x_defconfig +++ b/arch/arm/configs/orion5x_defconfig @@ -757,7 +757,14 @@ CONFIG_INPUT_EVDEV=y # # Input Device Drivers # -# CONFIG_INPUT_KEYBOARD is not set +CONFIG_INPUT_KEYBOARD=y +# CONFIG_KEYBOARD_ATKBD is not set +# CONFIG_KEYBOARD_SUNKBD is not set +# CONFIG_KEYBOARD_LKKBD is not set +# CONFIG_KEYBOARD_XTKBD is not set +# CONFIG_KEYBOARD_NEWTON is not set +# CONFIG_KEYBOARD_STOWAWAY is not set +CONFIG_KEYBOARD_GPIO=y # CONFIG_INPUT_MOUSE is not set # CONFIG_INPUT_JOYSTICK is not set # CONFIG_INPUT_TABLET is not set @@ -1111,11 +1118,11 @@ CONFIG_RTC_DRV_DS1307=y CONFIG_RTC_DRV_RS5C372=y # CONFIG_RTC_DRV_ISL1208 is not set # CONFIG_RTC_DRV_X1205 is not set -# CONFIG_RTC_DRV_PCF8563 is not set +CONFIG_RTC_DRV_PCF8563=y # CONFIG_RTC_DRV_PCF8583 is not set CONFIG_RTC_DRV_M41T80=y # CONFIG_RTC_DRV_M41T80_WDT is not set -# CONFIG_RTC_DRV_S35390A is not set +CONFIG_RTC_DRV_S35390A=y # # SPI RTC drivers diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index 45329fca1b6..7b95d205839 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -3,11 +3,48 @@ #ifdef __KERNEL__ -#include <linux/mm.h> /* need struct page */ - +#include <linux/mm_types.h> #include <linux/scatterlist.h> #include <asm-generic/dma-coherent.h> +#include <asm/memory.h> + +/* + * page_to_dma/dma_to_virt/virt_to_dma are architecture private functions + * used internally by the DMA-mapping API to provide DMA addresses. They + * must not be used by drivers. + */ +#ifndef __arch_page_to_dma +static inline dma_addr_t page_to_dma(struct device *dev, struct page *page) +{ + return (dma_addr_t)__virt_to_bus((unsigned long)page_address(page)); +} + +static inline void *dma_to_virt(struct device *dev, dma_addr_t addr) +{ + return (void *)__bus_to_virt(addr); +} + +static inline dma_addr_t virt_to_dma(struct device *dev, void *addr) +{ + return (dma_addr_t)__virt_to_bus((unsigned long)(addr)); +} +#else +static inline dma_addr_t page_to_dma(struct device *dev, struct page *page) +{ + return __arch_page_to_dma(dev, page); +} + +static inline void *dma_to_virt(struct device *dev, dma_addr_t addr) +{ + return __arch_dma_to_virt(dev, addr); +} + +static inline dma_addr_t virt_to_dma(struct device *dev, void *addr) +{ + return __arch_virt_to_dma(dev, addr); +} +#endif /* * DMA-consistent mapping functions. These allocate/free a region of @@ -169,7 +206,7 @@ dma_map_single(struct device *dev, void *cpu_addr, size_t size, if (!arch_is_coherent()) dma_cache_maint(cpu_addr, size, dir); - return virt_to_dma(dev, (unsigned long)cpu_addr); + return virt_to_dma(dev, cpu_addr); } #else extern dma_addr_t dma_map_single(struct device *,void *, size_t, enum dma_data_direction); @@ -195,7 +232,7 @@ dma_map_page(struct device *dev, struct page *page, unsigned long offset, size_t size, enum dma_data_direction dir) { - return dma_map_single(dev, page_address(page) + offset, size, (int)dir); + return dma_map_single(dev, page_address(page) + offset, size, dir); } /** @@ -241,7 +278,7 @@ static inline void dma_unmap_page(struct device *dev, dma_addr_t handle, size_t size, enum dma_data_direction dir) { - dma_unmap_single(dev, handle, size, (int)dir); + dma_unmap_single(dev, handle, size, dir); } /** @@ -314,11 +351,12 @@ extern void dma_unmap_sg(struct device *, struct scatterlist *, int, enum dma_da /** - * dma_sync_single_for_cpu + * dma_sync_single_range_for_cpu * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices * @handle: DMA address of buffer - * @size: size of buffer to map - * @dir: DMA transfer direction + * @offset: offset of region to start sync + * @size: size of region to sync + * @dir: DMA transfer direction (same as passed to dma_map_single) * * Make physical memory consistent for a single streaming mode DMA * translation after a transfer. @@ -332,25 +370,41 @@ extern void dma_unmap_sg(struct device *, struct scatterlist *, int, enum dma_da */ #ifndef CONFIG_DMABOUNCE static inline void -dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle, size_t size, - enum dma_data_direction dir) +dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t handle, + unsigned long offset, size_t size, + enum dma_data_direction dir) { if (!arch_is_coherent()) - dma_cache_maint((void *)dma_to_virt(dev, handle), size, dir); + dma_cache_maint(dma_to_virt(dev, handle) + offset, size, dir); } static inline void -dma_sync_single_for_device(struct device *dev, dma_addr_t handle, size_t size, - enum dma_data_direction dir) +dma_sync_single_range_for_device(struct device *dev, dma_addr_t handle, + unsigned long offset, size_t size, + enum dma_data_direction dir) { if (!arch_is_coherent()) - dma_cache_maint((void *)dma_to_virt(dev, handle), size, dir) |