Merge master.kernel.org:/home/rmk/linux-2.6-arm

* master.kernel.org:/home/rmk/linux-2.6-arm: (38 commits) [ARM] 5191/1: ARM: remove CVS keywords [ARM] pxafb: fix the warning of incorrect lccr when lcd_conn is specified [ARM] pxafb: add flag to specify output format on LDD pins when base is RGBT16 [ARM] pxafb: fix the incorrect configuration of GPIO77 as ACBIAS for TFT LCD [ARM] 5198/1: PalmTX: PCMCIA fixes [ARM] Fix a pile of broken watchdog drivers [ARM] update mach-types [ARM] 5196/1: fix inline asm constraints for preload [ARM] 5194/1: update .gitignore [ARM] add proc-macros.S include to proc-arm940 and proc-arm946 [ARM] 5192/1: ARM TLB: add v7wbi_{possible,always}_flags to {possible,always}_tlb_flags [ARM] 5193/1: Wire up missing syscalls [ARM] traps: don't call undef hook functions with spinlock held [ARM] 5183/2: Provide Poodle LoCoMo GPIO names [ARM] dma-mapping: provide sync_range APIs [ARM] dma-mapping: improve type-safeness of DMA translations [ARM] Kirkwood: instantiate the orion_spi driver in the platform code [ARM] prevent crashing when too much RAM installed [ARM] Kirkwood: Instantiate mv_xor driver [ARM] Orion: Instantiate mv_xor driver for 5182 ...
mariux64 · Aug 16, 2008 · 9c0d2a2 · 9c0d2a2
2 parents 5e6b83e + 66bfa2f
commit 9c0d2a2
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diff --git 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
@@ -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
@@ -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
@@ -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
@@ -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
@@ -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);
+		dma_cache_maint(dma_to_virt(dev, handle) + offset, size, dir);
 }
 #else
-extern void dma_sync_single_for_cpu(struct device*, dma_addr_t, size_t, enum dma_data_direction);
-extern void dma_sync_single_for_device(struct device*, dma_addr_t, size_t, enum dma_data_direction);
+extern void dma_sync_single_range_for_cpu(struct device *, dma_addr_t, unsigned long, size_t, enum dma_data_direction);
+extern void dma_sync_single_range_for_device(struct device *, dma_addr_t, unsigned long, size_t, enum dma_data_direction);
 #endif
 
+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(dev, handle, 0, 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(dev, handle, 0, size, dir);
+}
+
 
 /**
  * dma_sync_sg_for_cpu