From: Chuck Meade <chuckmeade@mindspring.com>
To: galak@kernel.crashing.org
Cc: linuxppc-dev@ozlabs.org
Subject: [PATCH] Fix MPC83xx SDMA setup errors
Date: Mon, 26 Mar 2007 18:24:30 -0400 [thread overview]
Message-ID: <4608481E.8020204@mindspring.com> (raw)
Correct the alignment of the internal buffer used by the MPC83xx SDMA
controller to 4Kbytes. Correct the shift direction in the logic that
sets up the SDMR register for the MPC83xx SDMA controller.
Signed-off-by: Chuck Meade <chuckmeade@mindspring.com>
---
arch/powerpc/sysdev/qe_lib/qe.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff -uprN a/arch/powerpc/sysdev/qe_lib/qe.c b/arch/powerpc/sysdev/qe_lib/qe.c
--- a/arch/powerpc/sysdev/qe_lib/qe.c 2007-01-13 09:37:03.000000000 -0500
+++ b/arch/powerpc/sysdev/qe_lib/qe.c 2007-03-26 17:48:08.000000000 -0400
@@ -251,12 +251,12 @@ static int qe_sdma_init(void)
/* allocate 2 internal temporary buffers (512 bytes size each) for
* the SDMA */
- sdma_buf_offset = qe_muram_alloc(512 * 2, 64);
+ sdma_buf_offset = qe_muram_alloc(512 * 2, 4096);
if (IS_MURAM_ERR(sdma_buf_offset))
return -ENOMEM;
out_be32(&sdma->sdebcr, sdma_buf_offset & QE_SDEBCR_BA_MASK);
- out_be32(&sdma->sdmr, (QE_SDMR_GLB_1_MSK | (0x1 >>
+ out_be32(&sdma->sdmr, (QE_SDMR_GLB_1_MSK | (0x1 <<
QE_SDMR_CEN_SHIFT)));
return 0;
next reply other threads:[~2007-03-26 22:24 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-26 22:24 Chuck Meade [this message]
2007-03-27 6:35 ` [PATCH] Fix MPC83xx SDMA setup errors Li Yang-r58472
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