[PATCH] ppc32: mv64x60 updates & enhancements

Updates and enhancement to the ppc32 mv64x60 code:
- move code to get mem size from mem ctlr to bootwrapper
- address some errata in the mv64360 pic code
- some minor cleanups
- export one of the bridge's regs via sysfs so user daemon can watch for
  extraction events

Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 17 insertions, 14 deletions

diff --git a/arch/ppc/syslib/mv64360_pic.c b/arch/ppc/syslib/mv64360_pic.c
index 74d8996418e9..8356da4678a2 100644
--- a/arch/ppc/syslib/mv64360_pic.c
+++ b/arch/ppc/syslib/mv64360_pic.c
@@ -366,10 +366,16 @@ mv64360_pci_error_int_handler(int irq, void *dev_id, struct pt_regs *regs)
         return IRQ_HANDLED;
 }
 
+/*
+ * Bit 0 of MV64x60_PCIx_ERR_MASK does not exist on the 64360 and because of
+ * errata FEr-#11 and FEr-##16 for the 64460, it should be 0 on that chip as
+ * well.  IOW, don't set bit 0.
+ */
+#define MV64360_PCI0_ERR_MASK_VAL       0x00a50c24
+
 static int __init
 mv64360_register_hdlrs(void)
 {
-        u32     mask;
         int     rc;
 
         /* Clear old errors and register CPU interface error intr handler */
@@ -387,17 +393,6 @@ mv64360_register_hdlrs(void)
                 mv64360_sram_error_int_handler,SA_INTERRUPT,SRAM_INTR_STR, 0)))
                 printk(KERN_WARNING "Can't register SRAM error handler: %d",rc);
 
-        /*
-         * Bit 0 reserved on 64360 and erratum FEr PCI-#11 (PCI internal
-         * data parity error set incorrectly) on rev 0 & 1 of 64460 requires
-         * bit 0 to be cleared.
-         */
-        mask = 0x00a50c24;
-
-        if ((mv64x60_get_bridge_type() == MV64x60_TYPE_MV64460) &&
-                (mv64x60_get_bridge_rev() > 1))
-                mask |= 0x1;    /* enable DPErr on 64460 */
-
         /* Clear old errors and register PCI 0 error intr handler */
         mv64x60_write(&bh, MV64x60_PCI0_ERR_CAUSE, 0);
         if ((rc = request_irq(MV64360_IRQ_PCI0 + mv64360_irq_base,
@@ -407,7 +402,11 @@ mv64360_register_hdlrs(void)
                         rc);
 
         mv64x60_write(&bh, MV64x60_PCI0_ERR_MASK, 0);
-        mv64x60_write(&bh, MV64x60_PCI0_ERR_MASK, mask);
+        mv64x60_write(&bh, MV64x60_PCI0_ERR_MASK, MV64360_PCI0_ERR_MASK_VAL);
+
+        /* Erratum FEr PCI-#16 says to clear bit 0 of PCI SERRn Mask reg. */
+        mv64x60_write(&bh, MV64x60_PCI0_ERR_SERR_MASK,
+                mv64x60_read(&bh, MV64x60_PCI0_ERR_SERR_MASK) & ~0x1UL);
 
         /* Clear old errors and register PCI 1 error intr handler */
         mv64x60_write(&bh, MV64x60_PCI1_ERR_CAUSE, 0);
@@ -418,7 +417,11 @@ mv64360_register_hdlrs(void)
                         rc);
 
         mv64x60_write(&bh, MV64x60_PCI1_ERR_MASK, 0);
-        mv64x60_write(&bh, MV64x60_PCI1_ERR_MASK, mask);
+        mv64x60_write(&bh, MV64x60_PCI1_ERR_MASK, MV64360_PCI0_ERR_MASK_VAL);
+
+        /* Erratum FEr PCI-#16 says to clear bit 0 of PCI Intr Mask reg. */
+        mv64x60_write(&bh, MV64x60_PCI1_ERR_SERR_MASK,
+                mv64x60_read(&bh, MV64x60_PCI1_ERR_SERR_MASK) & ~0x1UL);
 
         return 0;
 }