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

* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 4298/1: fix memory barriers for DMA coherent and SMP platforms
  [ARM] 4295/2: Fix error-handling in pxaficp_ir.c (version 2)
  [ARM] Fix __NR_kexec_load
  [ARM] Export dma_channel_active()
  [ARM] 4296/1: ixp4xx: compile fix
  [ARM] 4289/1: AT91: SAM9260 NAND flash timing

diff --git a/arch/arm/kernel/dma.c b/arch/arm/kernel/dma.c
index 5a0f4bc5da954492043571f24e430afe4f26a928..ba99a20355236a06491922a63e0ef745f0bcfcc5 100644 (file)
--- a/arch/arm/kernel/dma.c
+++ b/arch/arm/kernel/dma.c
@@ -228,6 +228,7 @@ int dma_channel_active(dmach_t channel)
 {
        return dma_chan[channel].active;
 }
+EXPORT_SYMBOL(dma_channel_active);
 
 void set_dma_page(dmach_t channel, char pagenr)
 {

diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index f7d342ccbebf823db392f75759cd6417b5a782d5..40586e22cd385cd28dda795292f5e78b15a6199e 100644 (file)
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -320,16 +320,16 @@ void __init at91_add_device_nand(struct at91_nand_data *data)
        at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0)
                        | AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
 
-       at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(2) | AT91_SMC_NCS_WRPULSE_(5)
-                       | AT91_SMC_NRDPULSE_(2) | AT91_SMC_NCS_RDPULSE_(5));
+       at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3)
+                       | AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
 
-       at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(7) | AT91_SMC_NRDCYCLE_(7));
+       at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
 
        if (data->bus_width_16)
                mode = AT91_SMC_DBW_16;
        else
                mode = AT91_SMC_DBW_8;
-       at91_sys_write(AT91_SMC_MODE(3), mode | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(1));
+       at91_sys_write(AT91_SMC_MODE(3), mode | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(2));
 
        /* enable pin */
        if (data->enable_pin)

diff --git a/drivers/net/irda/pxaficp_ir.c b/drivers/net/irda/pxaficp_ir.c
index 9137e239fac2e55120fed2520db2dccbe5bfcbe9..2272156af31e5b09afaaacd2a962dcff2c2010a5 100644 (file)
--- a/drivers/net/irda/pxaficp_ir.c
+++ b/drivers/net/irda/pxaficp_ir.c
@@ -321,15 +321,22 @@ static void pxa_irda_fir_dma_tx_irq(int channel, void *data)
                pxa_irda_set_speed(si, si->newspeed);
                si->newspeed = 0;
        } else {
+               int i = 64;
+
                ICCR0 = 0;
                pxa_irda_fir_dma_rx_start(si);
+               while ((ICSR1 & ICSR1_RNE) && i--)
+                       (void)ICDR;
                ICCR0 = ICCR0_ITR | ICCR0_RXE;
+
+               if (i < 0)
+                       printk(KERN_ERR "pxa_ir: cannot clear Rx FIFO!\n");
        }
        netif_wake_queue(dev);
 }
 
 /* EIF(Error in FIFO/End in Frame) handler for FIR */
-static void pxa_irda_fir_irq_eif(struct pxa_irda *si, struct net_device *dev)
+static void pxa_irda_fir_irq_eif(struct pxa_irda *si, struct net_device *dev, int icsr0)
 {
        unsigned int len, stat, data;
 
@@ -350,7 +357,7 @@ static void pxa_irda_fir_irq_eif(struct pxa_irda *si, struct net_device *dev)
                        }
                        if (stat & ICSR1_ROR) {
                                printk(KERN_DEBUG "pxa_ir: fir receive overrun\n");
-                               si->stats.rx_frame_errors++;
+                               si->stats.rx_over_errors++;
                        }
                } else  {
                        si->dma_rx_buff[len++] = data;
@@ -362,7 +369,15 @@ static void pxa_irda_fir_irq_eif(struct pxa_irda *si, struct net_device *dev)
 
        if (stat & ICSR1_EOF) {
                /* end of frame. */
-               struct sk_buff *skb = alloc_skb(len+1,GFP_ATOMIC);
+               struct sk_buff *skb;
+
+               if (icsr0 & ICSR0_FRE) {
+                       printk(KERN_ERR "pxa_ir: dropping erroneous frame\n");
+                       si->stats.rx_dropped++;
+                       return;
+               }
+
+               skb = alloc_skb(len+1,GFP_ATOMIC);
                if (!skb)  {
                        printk(KERN_ERR "pxa_ir: fir out of memory for receive skb\n");
                        si->stats.rx_dropped++;
@@ -392,7 +407,7 @@ static irqreturn_t pxa_irda_fir_irq(int irq, void *dev_id)
 {
        struct net_device *dev = dev_id;
        struct pxa_irda *si = netdev_priv(dev);
-       int icsr0;
+       int icsr0, i = 64;
 
        /* stop RX DMA */
        DCSR(si->rxdma) &= ~DCSR_RUN;
@@ -412,13 +427,18 @@ static irqreturn_t pxa_irda_fir_irq(int irq, void *dev_id)
 
        if (icsr0 & ICSR0_EIF) {
                /* An error in FIFO occured, or there is a end of frame */
-               pxa_irda_fir_irq_eif(si, dev);
+               pxa_irda_fir_irq_eif(si, dev, icsr0);
        }
 
        ICCR0 = 0;
        pxa_irda_fir_dma_rx_start(si);
+       while ((ICSR1 & ICSR1_RNE) && i--)
+               (void)ICDR;
        ICCR0 = ICCR0_ITR | ICCR0_RXE;
 
+       if (i < 0)
+               printk(KERN_ERR "pxa_ir: cannot clear Rx FIFO!\n");
+
        return IRQ_HANDLED;
 }
 

diff --git a/include/asm-arm/arch-ixp4xx/io.h b/include/asm-arm/arch-ixp4xx/io.h
index b7b5414d9320d7289dad9b6142fa316ef9f2870e..a41ba229c56448a7c69442a83d4a4c1272dda714 100644 (file)
--- a/include/asm-arm/arch-ixp4xx/io.h
+++ b/include/asm-arm/arch-ixp4xx/io.h
@@ -238,23 +238,6 @@ __ixp4xx_readsl(const volatile void __iomem *bus_addr, u32 *vaddr, u32 count)
 #define memcpy_fromio(a,c,l)           _memcpy_fromio((a),(c),(l))
 #define memcpy_toio(c,a,l)             _memcpy_toio((c),(a),(l))
 
-static inline int
-check_signature(const unsigned char __iomem *bus_addr, const unsigned char *signature,
-               int length)
-{
-       int retval = 0;
-       do {
-               if (readb(bus_addr) != *signature)
-                       goto out;
-               bus_addr++;
-               signature++;
-               length--;
-       } while (length);
-       retval = 1;
-out:
-       return retval;
-}
-
 #endif
 
 #ifndef CONFIG_PCI

diff --git a/include/asm-arm/system.h b/include/asm-arm/system.h
index f06d8a43fdee9eed0553cbb910ef279ee2813a82..69134c7518c1eceec790ed06e5e388ad8c2d46c8 100644 (file)
--- a/include/asm-arm/system.h
+++ b/include/asm-arm/system.h
@@ -3,6 +3,7 @@
 
 #ifdef __KERNEL__
 
+#include <asm/memory.h>
 
 #define CPU_ARCH_UNKNOWN       0
 #define CPU_ARCH_ARMv3         1
@@ -154,7 +155,7 @@ extern unsigned int user_debug;
 #define vectors_high() (0)
 #endif
 
-#if __LINUX_ARM_ARCH__ >= 6
+#if defined(CONFIG_CPU_XSC3) || __LINUX_ARM_ARCH__ >= 6
 #define isb() __asm__ __volatile__ ("mcr p15, 0, %0, c7, c5, 4" \
                                    : : "r" (0) : "memory")
 #define dsb() __asm__ __volatile__ ("mcr p15, 0, %0, c7, c10, 4" \
@@ -168,22 +169,23 @@ extern unsigned int user_debug;
 #define dmb() __asm__ __volatile__ ("" : : : "memory")
 #endif
 
-#define mb()                   barrier()
-#define rmb()                  barrier()
-#define wmb()                  barrier()
-#define read_barrier_depends() do { } while(0)
-
-#ifdef CONFIG_SMP
-#define smp_mb()               dmb()
-#define smp_rmb()              dmb()
-#define smp_wmb()              dmb()
-#define smp_read_barrier_depends()     read_barrier_depends()
+#ifndef CONFIG_SMP
+#define mb()   do { if (arch_is_coherent()) dmb(); else barrier(); } while (0)
+#define rmb()  do { if (arch_is_coherent()) dmb(); else barrier(); } while (0)
+#define wmb()  do { if (arch_is_coherent()) dmb(); else barrier(); } while (0)
+#define smp_mb()       barrier()
+#define smp_rmb()      barrier()
+#define smp_wmb()      barrier()
 #else
-#define smp_mb()               barrier()
-#define smp_rmb()              barrier()
-#define smp_wmb()              barrier()
-#define smp_read_barrier_depends()     read_barrier_depends()
-#endif /* CONFIG_SMP */
+#define mb()           dmb()
+#define rmb()          dmb()
+#define wmb()          dmb()
+#define smp_mb()       dmb()
+#define smp_rmb()      dmb()
+#define smp_wmb()      dmb()
+#endif
+#define read_barrier_depends()         do { } while(0)
+#define smp_read_barrier_depends()     do { } while(0)
 
 #define set_mb(var, value)     do { var = value; smp_mb(); } while (0)
 #define nop() __asm__ __volatile__("mov\tr0,r0\t@ nop\n\t");

diff --git a/include/asm-arm/unistd.h b/include/asm-arm/unistd.h
index 0991b7bc3f78dc0acac510de92668d818e6cc897..c025ab47e4b976a88700c48de99ed807c4507a8d 100644 (file)
--- a/include/asm-arm/unistd.h
+++ b/include/asm-arm/unistd.h
@@ -372,7 +372,7 @@
 #define __NR_move_pages                        (__NR_SYSCALL_BASE+344)
 #define __NR_getcpu                    (__NR_SYSCALL_BASE+345)
                                        /* 346 for epoll_pwait */
-#define __NR_sys_kexec_load            (__NR_SYSCALL_BASE+347)
+#define __NR_kexec_load                        (__NR_SYSCALL_BASE+347)
 
 /*
  * The following SWIs are ARM private.