Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6:
  [AVR32] Fix random segfault with preemption
  [AVR32] Don't use __builtin_xchg()
  [AVR32] ngw100 i2c-gpio tweaks
  [AVR32] Ignore a few irrelevant syscalls
  [AVR32] SMC configuration in clock cycles
  [AVR32] Drop support for redundant "keepinitrd" boot-time parm.
  [AVR32] Make dma_sync_*_for_cpu no-ops
  [AVR32] Remove unneeded 8K alignment of .text section
  [AVR32] Kill a few hardcoded constants in vmlinux.lds
  [AVR32] rename vmlinux.lds
  [AVR32] fix command line parsing in early_parse_fbmem
  [AVR32] checkstack support
  [AVR32] Wire up USBA device
  [AVR32] add multidrive support for pio driver
  [AVR32] /sys/kernel/debug/at32ap_clk
  [AVR32] Move AT32_PM_BASE definition into pm.h

6 files changed, 82 insertions, 21 deletions

diff --git a/include/asm-avr32/arch-at32ap/board.h b/include/asm-avr32/arch-at32ap/board.h
index 0215965dc586..7dbd603c38cc 100644
--- a/include/asm-avr32/arch-at32ap/board.h
+++ b/include/asm-avr32/arch-at32ap/board.h
@@ -6,6 +6,8 @@
 
 #include <linux/types.h>
 
+#define GPIO_PIN_NONE	(-1)
+
 /* Add basic devices: system manager, interrupt controller, portmuxes, etc. */
 void at32_add_system_devices(void);
 
@@ -36,6 +38,12 @@ struct platform_device *
 at32_add_device_lcdc(unsigned int id, struct atmel_lcdfb_info *data,
 		     unsigned long fbmem_start, unsigned long fbmem_len);
 
+struct usba_platform_data {
+	int vbus_pin;
+};
+struct platform_device *
+at32_add_device_usba(unsigned int id, struct usba_platform_data *data);
+
 /* depending on what's hooked up, not all SSC pins will be used */
 #define	ATMEL_SSC_TK		0x01
 #define	ATMEL_SSC_TF		0x02
diff --git a/include/asm-avr32/arch-at32ap/portmux.h b/include/asm-avr32/arch-at32ap/portmux.h
index 9930871decde..b1abe6b4e4ef 100644
--- a/include/asm-avr32/arch-at32ap/portmux.h
+++ b/include/asm-avr32/arch-at32ap/portmux.h
@@ -19,6 +19,7 @@
 #define AT32_GPIOF_OUTPUT	0x00000002	/* (OUT) Enable output driver */
 #define AT32_GPIOF_HIGH		0x00000004	/* (OUT) Set output high */
 #define AT32_GPIOF_DEGLITCH	0x00000008	/* (IN) Filter glitches */
+#define AT32_GPIOF_MULTIDRV	0x00000010	/* Enable multidriver option */
 
 void at32_select_periph(unsigned int pin, unsigned int periph,
 			unsigned long flags);
diff --git a/include/asm-avr32/arch-at32ap/smc.h b/include/asm-avr32/arch-at32ap/smc.h
index 07152b7fd9c9..c98eea44a70a 100644
--- a/include/asm-avr32/arch-at32ap/smc.h
+++ b/include/asm-avr32/arch-at32ap/smc.h
@@ -15,22 +15,50 @@
 /*
  * All timing parameters are in nanoseconds.
  */
+struct smc_timing {
+	/* Delay from address valid to assertion of given strobe */
+	int ncs_read_setup;
+	int nrd_setup;
+	int ncs_write_setup;
+	int nwe_setup;
+
+	/* Pulse length of given strobe */
+	int ncs_read_pulse;
+	int nrd_pulse;
+	int ncs_write_pulse;
+	int nwe_pulse;
+
+	/* Total cycle length of given operation */
+	int read_cycle;
+	int write_cycle;
+
+	/* Minimal recovery times, will extend cycle if needed */
+	int ncs_read_recover;
+	int nrd_recover;
+	int ncs_write_recover;
+	int nwe_recover;
+};
+
+/*
+ * All timing parameters are in clock cycles.
+ */
 struct smc_config {
+
 	/* Delay from address valid to assertion of given strobe */
-	u16		ncs_read_setup;
-	u16		nrd_setup;
-	u16		ncs_write_setup;
-	u16		nwe_setup;
+	u8		ncs_read_setup;
+	u8		nrd_setup;
+	u8		ncs_write_setup;
+	u8		nwe_setup;
 
 	/* Pulse length of given strobe */
-	u16		ncs_read_pulse;
-	u16		nrd_pulse;
-	u16		ncs_write_pulse;
-	u16		nwe_pulse;
+	u8		ncs_read_pulse;
+	u8		nrd_pulse;
+	u8		ncs_write_pulse;
+	u8		nwe_pulse;
 
 	/* Total cycle length of given operation */
-	u16		read_cycle;
-	u16		write_cycle;
+	u8		read_cycle;
+	u8		write_cycle;
 
 	/* Bus width in bytes */
 	u8		bus_width;
@@ -76,6 +104,9 @@ struct smc_config {
 	unsigned int	tdf_mode:1;
 };
 
+extern void smc_set_timing(struct smc_config *config,
+			   const struct smc_timing *timing);
+
 extern int smc_set_configuration(int cs, const struct smc_config *config);
 extern struct smc_config *smc_get_configuration(int cs);
 
diff --git a/include/asm-avr32/dma-mapping.h b/include/asm-avr32/dma-mapping.h
index 21bb60bbb9a1..81e342636ac4 100644
--- a/include/asm-avr32/dma-mapping.h
+++ b/include/asm-avr32/dma-mapping.h
@@ -264,7 +264,11 @@ static inline void
 dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
 			size_t size, enum dma_data_direction direction)
 {
-	dma_cache_sync(dev, bus_to_virt(dma_handle), size, direction);
+	/*
+	 * No need to do anything since the CPU isn't supposed to
+	 * touch this memory after we flushed it at mapping- or
+	 * sync-for-device time.
+	 */
 }
 
 static inline void
@@ -309,12 +313,11 @@ static inline void
 dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
 		    int nents, enum dma_data_direction direction)
 {
-	int i;
-
-	for (i = 0; i < nents; i++) {
-		dma_cache_sync(dev, page_address(sg[i].page) + sg[i].offset,
-			       sg[i].length, direction);
-	}
+	/*
+	 * No need to do anything since the CPU isn't supposed to
+	 * touch this memory after we flushed it at mapping- or
+	 * sync-for-device time.
+	 */
 }
 
 static inline void
diff --git a/include/asm-avr32/system.h b/include/asm-avr32/system.h
index a8236bacc878..dc2d527cef41 100644
--- a/include/asm-avr32/system.h
+++ b/include/asm-avr32/system.h
@@ -73,11 +73,16 @@ extern struct task_struct *__switch_to(struct task_struct *,
 
 extern void __xchg_called_with_bad_pointer(void);
 
-#ifdef __CHECKER__
-extern unsigned long __builtin_xchg(void *ptr, unsigned long x);
-#endif
+static inline unsigned long xchg_u32(u32 val, volatile u32 *m)
+{
+	u32 ret;
 
-#define xchg_u32(val, m) __builtin_xchg((void *)m, val)
+	asm volatile("xchg %[ret], %[m], %[val]"
+			: [ret] "=&r"(ret), "=m"(*m)
+			: "m"(*m), [m] "r"(m), [val] "r"(val)
+			: "memory");
+	return ret;
+}
 
 static inline unsigned long __xchg(unsigned long x,
 				       volatile void *ptr,
diff --git a/include/asm-avr32/unistd.h b/include/asm-avr32/unistd.h
index 3b4e35b55c82..de09009593f8 100644
--- a/include/asm-avr32/unistd.h
+++ b/include/asm-avr32/unistd.h
@@ -303,6 +303,19 @@
 #ifdef __KERNEL__
 #define NR_syscalls		282
 
+/* Old stuff */
+#define __IGNORE_uselib
+#define __IGNORE_mmap
+
+/* NUMA stuff */
+#define __IGNORE_mbind
+#define __IGNORE_get_mempolicy
+#define __IGNORE_set_mempolicy
+#define __IGNORE_migrate_pages
+#define __IGNORE_move_pages
+
+/* SMP stuff */
+#define __IGNORE_getcpu
 
 #define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_STAT64