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author | Peter Tyser <ptyser@xes-inc.com> | 2009-06-30 22:15:40 (GMT) |
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committer | Kumar Gala <galak@kernel.crashing.org> | 2009-07-02 04:01:51 (GMT) |
commit | 017f11f68ef543e866be033bcb7b8058a8a380d8 (patch) | |
tree | f8a0fd3db0b2436db79df427267149f0d4e5b416 /cpu/mpc85xx | |
parent | 29c35182462feea09f322e51913759a53359a3e0 (diff) | |
download | u-boot-017f11f68ef543e866be033bcb7b8058a8a380d8.tar.xz |
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')
-rw-r--r-- | cpu/mpc85xx/cpu.c | 47 |
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. |