diff options
| -rw-r--r-- | cpu/mpc85xx/cpu.c | 8 | ||||
| -rw-r--r-- | cpu/mpc86xx/cpu.c | 14 | ||||
| -rw-r--r-- | include/asm-ppc/immap_86xx.h | 2 |
3 files changed, 14 insertions, 10 deletions
diff --git a/cpu/mpc85xx/cpu.c b/cpu/mpc85xx/cpu.c index 331fcc09a..d88c56462 100644 --- a/cpu/mpc85xx/cpu.c +++ b/cpu/mpc85xx/cpu.c @@ -269,9 +269,9 @@ void dma_init(void) { volatile ccsr_dma_t *dma_base = (void *)(CONFIG_SYS_MPC85xx_DMA_ADDR); volatile fsl_dma_t *dma = &dma_base->dma[0]; - dma->satr = 0x02c40000; - dma->datr = 0x02c40000; - dma->sr = 0xfffffff; /* clear any errors */ + dma->satr = 0x00040000; + dma->datr = 0x00040000; + dma->sr = 0xffffffff; /* clear any errors */ asm("sync; isync; msync"); return; } @@ -286,7 +286,7 @@ uint dma_check(void) { status = dma->sr; } - /* clear MR0[CS] channel start bit */ + /* clear MR[CS] channel start bit */ dma->mr &= 0x00000001; asm("sync;isync;msync"); diff --git a/cpu/mpc86xx/cpu.c b/cpu/mpc86xx/cpu.c index f35323ac6..d47cc5ef3 100644 --- a/cpu/mpc86xx/cpu.c +++ b/cpu/mpc86xx/cpu.c @@ -182,20 +182,19 @@ watchdog_reset(void) void dma_init(void) { - volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile ccsr_dma_t *dma_base = &immap->im_dma; + volatile ccsr_dma_t *dma_base = (void *)(CONFIG_SYS_MPC86xx_DMA_ADDR); volatile fsl_dma_t *dma = &dma_base->dma[0]; dma->satr = 0x00040000; dma->datr = 0x00040000; + dma->sr = 0xffffffff; /* clear any errors */ asm("sync; isync"); } uint dma_check(void) { - volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile ccsr_dma_t *dma_base = &immap->im_dma; + volatile ccsr_dma_t *dma_base = (void *)(CONFIG_SYS_MPC86xx_DMA_ADDR); volatile fsl_dma_t *dma = &dma_base->dma[0]; volatile uint status = dma->sr; @@ -204,6 +203,10 @@ dma_check(void) status = dma->sr; } + /* clear MR[CS] channel start bit */ + dma->mr &= 0x00000001; + asm("sync;isync"); + if (status != 0) { printf("DMA Error: status = %x\n", status); } @@ -213,8 +216,7 @@ dma_check(void) int dma_xfer(void *dest, uint count, void *src) { - volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile ccsr_dma_t *dma_base = &immap->im_dma; + volatile ccsr_dma_t *dma_base = (void *)(CONFIG_SYS_MPC86xx_DMA_ADDR); volatile fsl_dma_t *dma = &dma_base->dma[0]; dma->dar = (uint) dest; diff --git a/include/asm-ppc/immap_86xx.h b/include/asm-ppc/immap_86xx.h index 689c72045..a8398348b 100644 --- a/include/asm-ppc/immap_86xx.h +++ b/include/asm-ppc/immap_86xx.h @@ -1295,5 +1295,7 @@ extern immap_t *immr; #define CONFIG_SYS_MPC86xx_DDR_ADDR (CONFIG_SYS_IMMR + CONFIG_SYS_MPC86xx_DDR_OFFSET) #define CONFIG_SYS_MPC86xx_DDR2_OFFSET (0x6000) #define CONFIG_SYS_MPC86xx_DDR2_ADDR (CONFIG_SYS_IMMR + CONFIG_SYS_MPC86xx_DDR2_OFFSET) +#define CONFIG_SYS_MPC86xx_DMA_OFFSET (0x21000) +#define CONFIG_SYS_MPC86xx_DMA_ADDR (CONFIG_SYS_IMMR + CONFIG_SYS_MPC86xx_DMA_OFFSET) #endif /*__IMMAP_86xx__*/ |