fsl: Create common fsl_dma.h for 85xx and 86xx cpus

Break out DMA structures for the Freescale MPC85xx and MPC86xx cpus to
reduce a large amount of code duplication

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

2 files changed, 32 insertions, 26 deletions

diff --git a/cpu/mpc85xx/cpu.c b/cpu/mpc85xx/cpu.c
index 9ad1188..331fcc0 100644
--- a/cpu/mpc85xx/cpu.c
+++ b/cpu/mpc85xx/cpu.c
@@ -266,26 +266,28 @@ reset_85xx_watchdog(void)
 
 #if defined(CONFIG_DDR_ECC)
 void dma_init(void) {
-	volatile ccsr_dma_t *dma = (void *)(CONFIG_SYS_MPC85xx_DMA_ADDR);
+	volatile ccsr_dma_t *dma_base = (void *)(CONFIG_SYS_MPC85xx_DMA_ADDR);
+	volatile fsl_dma_t *dma = &dma_base->dma[0];
 
-	dma->satr0 = 0x02c40000;
-	dma->datr0 = 0x02c40000;
-	dma->sr0 = 0xfffffff; /* clear any errors */
+	dma->satr = 0x02c40000;
+	dma->datr = 0x02c40000;
+	dma->sr = 0xfffffff; /* clear any errors */
 	asm("sync; isync; msync");
 	return;
 }
 
 uint dma_check(void) {
-	volatile ccsr_dma_t *dma = (void *)(CONFIG_SYS_MPC85xx_DMA_ADDR);
-	volatile uint status = dma->sr0;
+	volatile ccsr_dma_t *dma_base = (void *)(CONFIG_SYS_MPC85xx_DMA_ADDR);
+	volatile fsl_dma_t *dma = &dma_base->dma[0];
+	volatile uint status = dma->sr;
 
 	/* While the channel is busy, spin */
 	while((status & 4) == 4) {
-		status = dma->sr0;
+		status = dma->sr;
 	}
 
 	/* clear MR0[CS] channel start bit */
-	dma->mr0 &= 0x00000001;
+	dma->mr &= 0x00000001;
 	asm("sync;isync;msync");
 
 	if (status != 0) {
@@ -295,14 +297,15 @@ uint dma_check(void) {
 }
 
 int dma_xfer(void *dest, uint count, void *src) {
-	volatile ccsr_dma_t *dma = (void *)(CONFIG_SYS_MPC85xx_DMA_ADDR);
+	volatile ccsr_dma_t *dma_base = (void *)(CONFIG_SYS_MPC85xx_DMA_ADDR);
+	volatile fsl_dma_t *dma = &dma_base->dma[0];
 
-	dma->dar0 = (uint) dest;
-	dma->sar0 = (uint) src;
-	dma->bcr0 = count;
-	dma->mr0 = 0xf000004;
+	dma->dar = (uint) dest;
+	dma->sar = (uint) src;
+	dma->bcr = count;
+	dma->mr = 0xf000004;
 	asm("sync;isync;msync");
-	dma->mr0 = 0xf000005;
+	dma->mr = 0xf000005;
 	asm("sync;isync;msync");
 	return dma_check();
 }
diff --git a/cpu/mpc86xx/cpu.c b/cpu/mpc86xx/cpu.c
index 653a137..f35323a 100644
--- a/cpu/mpc86xx/cpu.c
+++ b/cpu/mpc86xx/cpu.c
@@ -183,10 +183,11 @@ void
 dma_init(void)
 {
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
-	volatile ccsr_dma_t *dma = &immap->im_dma;
+	volatile ccsr_dma_t *dma_base = &immap->im_dma;
+	volatile fsl_dma_t *dma = &dma_base->dma[0];
 
-	dma->satr0 = 0x00040000;
-	dma->datr0 = 0x00040000;
+	dma->satr = 0x00040000;
+	dma->datr = 0x00040000;
 	asm("sync; isync");
 }
 
@@ -194,12 +195,13 @@ uint
 dma_check(void)
 {
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
-	volatile ccsr_dma_t *dma = &immap->im_dma;
-	volatile uint status = dma->sr0;
+	volatile ccsr_dma_t *dma_base = &immap->im_dma;
+	volatile fsl_dma_t *dma = &dma_base->dma[0];
+	volatile uint status = dma->sr;
 
 	/* While the channel is busy, spin */
 	while ((status & 4) == 4) {
-		status = dma->sr0;
+		status = dma->sr;
 	}
 
 	if (status != 0) {
@@ -212,14 +214,15 @@ int
 dma_xfer(void *dest, uint count, void *src)
 {
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
-	volatile ccsr_dma_t *dma = &immap->im_dma;
+	volatile ccsr_dma_t *dma_base = &immap->im_dma;
+	volatile fsl_dma_t *dma = &dma_base->dma[0];
 
-	dma->dar0 = (uint) dest;
-	dma->sar0 = (uint) src;
-	dma->bcr0 = count;
-	dma->mr0 = 0xf000004;
+	dma->dar = (uint) dest;
+	dma->sar = (uint) src;
+	dma->bcr = count;
+	dma->mr = 0xf000004;
 	asm("sync;isync");
-	dma->mr0 = 0xf000005;
+	dma->mr = 0xf000005;
 	asm("sync;isync");
 	return dma_check();
 }