Hi Ralf,
the register layout of the IP22s mc is missing some paddings which
results in some nice bus error exceptions. Please apply this patch
against 2.4. and 2.5:
diff -u -p -r1.1.2.1 mc.h
--- include/asm-mips/sgi/mc.h 19 Mar 2003 04:23:22 -0000 1.1.2.1
+++ include/asm-mips/sgi/mc.h 27 Apr 2003 14:41:36 -0000
@@ -153,7 +153,7 @@ struct sgimc_regs {
volatile u32 elock; /* Locks EISA from GIO accesses */
/* GIO dma control registers. */
- u32 _unused22[14];
+ u32 _unused22[15];
volatile u32 gio_dma_trans; /* DMA mask to translation GIO addrs */
u32 _unused23;
volatile u32 gio_dma_sbits; /* DMA GIO addr substitution bits */
@@ -163,7 +163,7 @@ struct sgimc_regs {
volatile u32 dma_ctrl; /* Main DMA control reg */
/* DMA TLB entry 0 */
- u32 _unused26;
+ u32 _unused26[5];
volatile u32 dtlb_hi0;
u32 _unused27;
volatile u32 dtlb_lo0;
Regards,
-- Guido
