diff options
Diffstat (limited to 'cpu/mpc85xx')
| -rw-r--r-- | cpu/mpc85xx/cpu.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/cpu/mpc85xx/cpu.c b/cpu/mpc85xx/cpu.c index 2fe6bdf..b701b47 100644 --- a/cpu/mpc85xx/cpu.c +++ b/cpu/mpc85xx/cpu.c @@ -198,9 +198,9 @@ reset_85xx_watchdog(void) * Clear TSR(WIS) bit by writing 1 */ unsigned long val; - val = mfspr(tsr); - val |= 0x40000000; - mtspr(tsr, val); + val = mfspr(SPRN_TSR); + val |= TSR_WIS; + mtspr(SPRN_TSR, val); } #endif /* CONFIG_WATCHDOG */ @@ -211,6 +211,7 @@ void dma_init(void) { dma->satr0 = 0x02c40000; dma->datr0 = 0x02c40000; + dma->sr0 = 0xfffffff; /* clear any errors */ asm("sync; isync; msync"); return; } @@ -225,6 +226,10 @@ uint dma_check(void) { status = dma->sr0; } + /* clear MR0[CS] channel start bit */ + dma->mr0 &= 0x00000001; + asm("sync;isync;msync"); + if (status != 0) { printf ("DMA Error: status = %x\n", status); } |