Merge branch 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur...
authorLinus Torvalds <torvalds@linux-foundation.org>
Sun, 11 Sep 2011 00:28:46 +0000 (17:28 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sun, 11 Sep 2011 00:28:46 +0000 (17:28 -0700)
* 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm:
  ARM: 7088/1: entry: fix wrong parameter name used in do_thumb_abort
  ARM: 7080/1: l2x0: make sure I&D are not locked down on init
  ARM: 7081/1: mach-integrator: fix the clocksource
  NET: am79c961: fix race in link status code
  ARM: 7067/1: mm: keep significant bits in pfn_valid

arch/arm/include/asm/hardware/cache-l2x0.h
arch/arm/mach-integrator/integrator_ap.c
arch/arm/mm/abort-macro.S
arch/arm/mm/cache-l2x0.c
arch/arm/mm/init.c
drivers/net/arm/am79c961a.c

index bfa706f..99a6ed7 100644 (file)
 #define L2X0_CLEAN_INV_LINE_PA         0x7F0
 #define L2X0_CLEAN_INV_LINE_IDX                0x7F8
 #define L2X0_CLEAN_INV_WAY             0x7FC
-#define L2X0_LOCKDOWN_WAY_D            0x900
-#define L2X0_LOCKDOWN_WAY_I            0x904
+/*
+ * The lockdown registers repeat 8 times for L310, the L210 has only one
+ * D and one I lockdown register at 0x0900 and 0x0904.
+ */
+#define L2X0_LOCKDOWN_WAY_D_BASE       0x900
+#define L2X0_LOCKDOWN_WAY_I_BASE       0x904
+#define L2X0_LOCKDOWN_STRIDE           0x08
 #define L2X0_TEST_OPERATION            0xF00
 #define L2X0_LINE_DATA                 0xF10
 #define L2X0_LINE_TAG                  0xF30
index 2fbbdd5..fcf0ae9 100644 (file)
@@ -337,15 +337,15 @@ static unsigned long timer_reload;
 static void integrator_clocksource_init(u32 khz)
 {
        void __iomem *base = (void __iomem *)TIMER2_VA_BASE;
-       u32 ctrl = TIMER_CTRL_ENABLE;
+       u32 ctrl = TIMER_CTRL_ENABLE | TIMER_CTRL_PERIODIC;
 
        if (khz >= 1500) {
                khz /= 16;
-               ctrl = TIMER_CTRL_DIV16;
+               ctrl |= TIMER_CTRL_DIV16;
        }
 
-       writel(ctrl, base + TIMER_CTRL);
        writel(0xffff, base + TIMER_LOAD);
+       writel(ctrl, base + TIMER_CTRL);
 
        clocksource_mmio_init(base + TIMER_VALUE, "timer2",
                khz * 1000, 200, 16, clocksource_mmio_readl_down);
index 52162d5..2cbf68e 100644 (file)
@@ -17,7 +17,7 @@
        cmp     \tmp, # 0x5600                  @ Is it ldrsb?
        orreq   \tmp, \tmp, #1 << 11            @ Set L-bit if yes
        tst     \tmp, #1 << 11                  @ L = 0 -> write
-       orreq   \psr, \psr, #1 << 11            @ yes.
+       orreq   \fsr, \fsr, #1 << 11            @ yes.
        b       do_DataAbort
 not_thumb:
        .endm
index 44c0867..9ecfdb5 100644 (file)
@@ -277,6 +277,25 @@ static void l2x0_disable(void)
        spin_unlock_irqrestore(&l2x0_lock, flags);
 }
 
+static void __init l2x0_unlock(__u32 cache_id)
+{
+       int lockregs;
+       int i;
+
+       if (cache_id == L2X0_CACHE_ID_PART_L310)
+               lockregs = 8;
+       else
+               /* L210 and unknown types */
+               lockregs = 1;
+
+       for (i = 0; i < lockregs; i++) {
+               writel_relaxed(0x0, l2x0_base + L2X0_LOCKDOWN_WAY_D_BASE +
+                              i * L2X0_LOCKDOWN_STRIDE);
+               writel_relaxed(0x0, l2x0_base + L2X0_LOCKDOWN_WAY_I_BASE +
+                              i * L2X0_LOCKDOWN_STRIDE);
+       }
+}
+
 void __init l2x0_init(void __iomem *base, __u32 aux_val, __u32 aux_mask)
 {
        __u32 aux;
@@ -328,6 +347,8 @@ void __init l2x0_init(void __iomem *base, __u32 aux_val, __u32 aux_mask)
         * accessing the below registers will fault.
         */
        if (!(readl_relaxed(l2x0_base + L2X0_CTRL) & 1)) {
+               /* Make sure that I&D is not locked down when starting */
+               l2x0_unlock(cache_id);
 
                /* l2x0 controller is disabled */
                writel_relaxed(aux, l2x0_base + L2X0_AUX_CTRL);
index 91bca35..cc7e2d8 100644 (file)
@@ -298,7 +298,7 @@ static void __init arm_bootmem_free(unsigned long min, unsigned long max_low,
 #ifdef CONFIG_HAVE_ARCH_PFN_VALID
 int pfn_valid(unsigned long pfn)
 {
-       return memblock_is_memory(pfn << PAGE_SHIFT);
+       return memblock_is_memory(__pfn_to_phys(pfn));
 }
 EXPORT_SYMBOL(pfn_valid);
 #endif
index 52fe21e..3b1416e 100644 (file)
@@ -308,8 +308,11 @@ static void am79c961_timer(unsigned long data)
        struct net_device *dev = (struct net_device *)data;
        struct dev_priv *priv = netdev_priv(dev);
        unsigned int lnkstat, carrier;
+       unsigned long flags;
 
+       spin_lock_irqsave(&priv->chip_lock, flags);
        lnkstat = read_ireg(dev->base_addr, ISALED0) & ISALED0_LNKST;
+       spin_unlock_irqrestore(&priv->chip_lock, flags);
        carrier = netif_carrier_ok(dev);
 
        if (lnkstat && !carrier) {