Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm

[linux-2.6-omap-h63xx.git] / drivers / ssb / pci.c

diff --git a/drivers/ssb/pci.c b/drivers/ssb/pci.c
index f1514b33cfae442ecdce8702aec55654a41dd2ed..f883dcfffe0613d966f3e8de5d8f1b2159ae4389 100644 (file)
--- a/drivers/ssb/pci.c
+++ b/drivers/ssb/pci.c
@@ -484,6 +484,11 @@ static int sprom_extract(struct ssb_bus *bus, struct ssb_sprom *out,
                        goto unsupported;
        }
 
+       if (out->boardflags_lo == 0xFFFF)
+               out->boardflags_lo = 0;  /* per specs */
+       if (out->boardflags_hi == 0xFFFF)
+               out->boardflags_hi = 0;  /* per specs */
+
        return 0;
 unsupported:
        ssb_printk(KERN_WARNING PFX "Unsupported SPROM revision %d "
@@ -505,17 +510,15 @@ static int ssb_pci_sprom_get(struct ssb_bus *bus,
        sprom_do_read(bus, buf);
        err = sprom_check_crc(buf, bus->sprom_size);
        if (err) {
-               /* check for rev 4 sprom - has special signature */
-               if (buf[32] == 0x5372) {
-                       kfree(buf);
-                       buf = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16),
-                                     GFP_KERNEL);
-                       if (!buf)
-                               goto out;
-                       bus->sprom_size = SSB_SPROMSIZE_WORDS_R4;
-                       sprom_do_read(bus, buf);
-                       err = sprom_check_crc(buf, bus->sprom_size);
-               }
+               /* try for a 440 byte SPROM - revision 4 and higher */
+               kfree(buf);
+               buf = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16),
+                             GFP_KERNEL);
+               if (!buf)
+                       goto out;
+               bus->sprom_size = SSB_SPROMSIZE_WORDS_R4;
+               sprom_do_read(bus, buf);
+               err = sprom_check_crc(buf, bus->sprom_size);
                if (err)
                        ssb_printk(KERN_WARNING PFX "WARNING: Invalid"
                                   " SPROM CRC (corrupt SPROM)\n");
@@ -613,6 +616,41 @@ static u32 ssb_pci_read32(struct ssb_device *dev, u16 offset)
        return ioread32(bus->mmio + offset);
 }
 
+#ifdef CONFIG_SSB_BLOCKIO
+static void ssb_pci_block_read(struct ssb_device *dev, void *buffer,
+                              size_t count, u16 offset, u8 reg_width)
+{
+       struct ssb_bus *bus = dev->bus;
+       void __iomem *addr = bus->mmio + offset;
+
+       if (unlikely(ssb_pci_assert_buspower(bus)))
+               goto error;
+       if (unlikely(bus->mapped_device != dev)) {
+               if (unlikely(ssb_pci_switch_core(bus, dev)))
+                       goto error;
+       }
+       switch (reg_width) {
+       case sizeof(u8):
+               ioread8_rep(addr, buffer, count);
+               break;
+       case sizeof(u16):
+               SSB_WARN_ON(count & 1);
+               ioread16_rep(addr, buffer, count >> 1);
+               break;
+       case sizeof(u32):
+               SSB_WARN_ON(count & 3);
+               ioread32_rep(addr, buffer, count >> 2);
+               break;
+       default:
+               SSB_WARN_ON(1);
+       }
+
+       return;
+error:
+       memset(buffer, 0xFF, count);
+}
+#endif /* CONFIG_SSB_BLOCKIO */
+
 static void ssb_pci_write8(struct ssb_device *dev, u16 offset, u8 value)
 {
        struct ssb_bus *bus = dev->bus;
@@ -652,6 +690,37 @@ static void ssb_pci_write32(struct ssb_device *dev, u16 offset, u32 value)
        iowrite32(value, bus->mmio + offset);
 }
 
+#ifdef CONFIG_SSB_BLOCKIO
+static void ssb_pci_block_write(struct ssb_device *dev, const void *buffer,
+                               size_t count, u16 offset, u8 reg_width)
+{
+       struct ssb_bus *bus = dev->bus;
+       void __iomem *addr = bus->mmio + offset;
+
+       if (unlikely(ssb_pci_assert_buspower(bus)))
+               return;
+       if (unlikely(bus->mapped_device != dev)) {
+               if (unlikely(ssb_pci_switch_core(bus, dev)))
+                       return;
+       }
+       switch (reg_width) {
+       case sizeof(u8):
+               iowrite8_rep(addr, buffer, count);
+               break;
+       case sizeof(u16):
+               SSB_WARN_ON(count & 1);
+               iowrite16_rep(addr, buffer, count >> 1);
+               break;
+       case sizeof(u32):
+               SSB_WARN_ON(count & 3);
+               iowrite32_rep(addr, buffer, count >> 2);
+               break;
+       default:
+               SSB_WARN_ON(1);
+       }
+}
+#endif /* CONFIG_SSB_BLOCKIO */
+
 /* Not "static", as it's used in main.c */
 const struct ssb_bus_ops ssb_pci_ops = {
        .read8          = ssb_pci_read8,
@@ -660,6 +729,10 @@ const struct ssb_bus_ops ssb_pci_ops = {
        .write8         = ssb_pci_write8,
        .write16        = ssb_pci_write16,
        .write32        = ssb_pci_write32,
+#ifdef CONFIG_SSB_BLOCKIO
+       .block_read     = ssb_pci_block_read,
+       .block_write    = ssb_pci_block_write,
+#endif
 };
 
 static ssize_t ssb_pci_attr_sprom_show(struct device *pcidev,