From: Peter Tyser <ptyser@xes-inc.com>
Date: Tue, 30 Jun 2009 22:15:49 +0000 (-0500)
Subject: fsl_dma: Make DMA transactions snoopable
X-Git-Tag: v2009.08-rc1~122^2~7
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=6af015b86b86d94de7ca1b23a3890bc93a50c2ab;p=u-boot

fsl_dma: Make DMA transactions snoopable

Make DMA transactions snoopable so that CPUs can keep caches up-to-date.
This allows dma transactions to be used for operations such as memory
copies without any additional cache control operations.

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

diff --git a/drivers/dma/fsl_dma.c b/drivers/dma/fsl_dma.c
index e103c910fd..cba5d5b8a8 100644
--- a/drivers/dma/fsl_dma.c
+++ b/drivers/dma/fsl_dma.c
@@ -72,8 +72,8 @@ static uint dma_check(void) {
 void dma_init(void) {
 	volatile fsl_dma_t *dma = &dma_base->dma[0];
 
-	out_be32(&dma->satr, FSL_DMA_SATR_SREAD_NO_SNOOP);
-	out_be32(&dma->datr, FSL_DMA_DATR_DWRITE_NO_SNOOP);
+	out_be32(&dma->satr, FSL_DMA_SATR_SREAD_SNOOP);
+	out_be32(&dma->datr, FSL_DMA_DATR_DWRITE_SNOOP);
 	out_be32(&dma->sr, 0xffffffff); /* clear any errors */
 	dma_sync();
 }