From: "Adrian McMenamin" <lkmladrian@gmail.com>
To: "Paul Mundt" <lethal@linux-sh.org>
Cc: linux-kernel@vger.kernel.org, linuxsh-dev@sourceforge.net
Subject: [PATCH] Fix SH4 DMAC API
Date: Sat, 6 Oct 2007 14:52:43 +0100 [thread overview]
Message-ID: <8b67d60710060652ha54d28bj30bdc9eec514857f@mail.gmail.com> (raw)
This patch fixes the DMA cascade by masking the correct bits.
Tested and working with Dreamcast PVR2 DMA. With this patch applied
the existing mainline code in arch/sh/drivers/dma/dma-sh.c works,
whereas before I was patching that to get round this problem.
Signed-off by: Adrian McMenamin <adrian@mcmen.demon.co.uk>
diff --git a/include/asm-sh/cpu-sh4/dma.h b/include/asm-sh/cpu-sh4/dma.h
index 36e26a9..aaf71b0 100644
--- a/include/asm-sh/cpu-sh4/dma.h
+++ b/include/asm-sh/cpu-sh4/dma.h
@@ -31,7 +31,7 @@
#define TS_32 0x00000030
#define TS_64 0x00000000
-#define CHCR_TS_MASK 0x30
+#define CHCR_TS_MASK 0x70
#define CHCR_TS_SHIFT 4
#define DMAOR_COD 0x00000008
next reply other threads:[~2007-10-06 13:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-06 13:52 Adrian McMenamin [this message]
2007-10-07 20:10 ` Paul Mundt
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