diff options
| author | Peter Tyser <ptyser@xes-inc.com> | 2009-06-30 17:15:40 -0500 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2009-07-01 23:01:51 -0500 |
| commit | 017f11f68ef543e866be033bcb7b8058a8a380d8 (patch) | |
| tree | f8a0fd3db0b2436db79df427267149f0d4e5b416 /cpu/mpc86xx/cpu.c | |
| parent | 29c35182462feea09f322e51913759a53359a3e0 (diff) | |
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/mpc86xx/cpu.c')
| -rw-r--r-- | cpu/mpc86xx/cpu.c | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/cpu/mpc86xx/cpu.c b/cpu/mpc86xx/cpu.c index 438d9025f3..bc6428680e 100644 --- a/cpu/mpc86xx/cpu.c +++ b/cpu/mpc86xx/cpu.c @@ -186,61 +186,6 @@ watchdog_reset(void) } #endif /* CONFIG_WATCHDOG */ - -#if defined(CONFIG_DDR_ECC) -void -dma_init(void) -{ - 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 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; - - /* 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"); - - 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_MPC86xx_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"); - dma->mr = 0xf000005; - asm("sync;isync"); - return dma_check(); -} - -#endif /* CONFIG_DDR_ECC */ - - /* * Print out the state of various machine registers. * Currently prints out LAWs, BR0/OR0, and BATs |