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authorPeter Tyser <ptyser@xes-inc.com>2009-06-30 17:15:40 -0500
committerKumar Gala <galak@kernel.crashing.org>2009-07-01 23:01:51 -0500
commit017f11f68ef543e866be033bcb7b8058a8a380d8 (patch)
treef8a0fd3db0b2436db79df427267149f0d4e5b416 /cpu/mpc85xx/cpu.c
parent29c35182462feea09f322e51913759a53359a3e0 (diff)
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8xxx: Break out DMA code to a common file
DMA support is now enabled via the CONFIG_FSL_DMA define instead of the previous CONFIG_DDR_ECC Signed-off-by: Peter Tyser <ptyser@xes-inc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'cpu/mpc85xx/cpu.c')
-rw-r--r--cpu/mpc85xx/cpu.c47
1 files changed, 0 insertions, 47 deletions
diff --git a/cpu/mpc85xx/cpu.c b/cpu/mpc85xx/cpu.c
index d88c564..28c6119 100644
--- a/cpu/mpc85xx/cpu.c
+++ b/cpu/mpc85xx/cpu.c
@@ -264,53 +264,6 @@ reset_85xx_watchdog(void)
}
#endif /* CONFIG_WATCHDOG */
-#if defined(CONFIG_DDR_ECC)
-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 = 0x00040000;
- dma->datr = 0x00040000;
- dma->sr = 0xffffffff; /* clear any errors */
- asm("sync; isync; msync");
- return;
-}
-
-uint dma_check(void) {
- 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->sr;
- }
-
- /* clear MR[CS] channel start bit */
- dma->mr &= 0x00000001;
- asm("sync;isync;msync");
-
- if (status != 0) {
- printf ("DMA Error: status = %x\n", status);
- }
- return status;
-}
-
-int dma_xfer(void *dest, uint count, void *src) {
- volatile ccsr_dma_t *dma_base = (void *)(CONFIG_SYS_MPC85xx_DMA_ADDR);
- volatile fsl_dma_t *dma = &dma_base->dma[0];
-
- dma->dar = (uint) dest;
- dma->sar = (uint) src;
- dma->bcr = count;
- dma->mr = 0xf000004;
- asm("sync;isync;msync");
- dma->mr = 0xf000005;
- asm("sync;isync;msync");
- return dma_check();
-}
-#endif
-
/*
* Configures a UPM. The function requires the respective MxMR to be set
* before calling this function. "size" is the number or entries, not a sizeof.