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authorVikram Pandita <vikram.pandita@ti.com>2009-08-10 14:49:50 +0300
committerTony Lindgren <tony@atomide.com>2009-08-10 14:49:50 +0300
commit284119c48f4a0c469b3e0237b500e536b4bc7b6f (patch)
treee931edf881d082a60f99553d521d92923ed90435
parentcd92204924fafbd5c7241dfd12ca3176d542e0c5 (diff)
OMAP2/3: DMA errata correction
This errata is valid for: OMAP2420 Errata 1.85 Impacts all 2420 ES rev OMAP2430 Errata 1.10 Impacts only ES1.0 Description: DMA may hang when several channels are used in parallel OMAP3430: Not impacted, so remove the errata fix for omap3 Fixed issue reported on cpu_is_omap24xx check reported by Nishant Kamat Signed-off-by: Vikram Pandita <vikram.pandita@ti.com> Reviewed-by: Nishant Kamat <nskamat@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
-rw-r--r--arch/arm/plat-omap/dma.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index 7677a4a1cef..e3ac94f0900 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -946,7 +946,9 @@ void omap_start_dma(int lch)
cur_lch = next_lch;
} while (next_lch != -1);
- } else if (cpu_class_is_omap2()) {
+ } else if (cpu_is_omap242x() ||
+ (cpu_is_omap243x() && omap_type() <= OMAP2430_REV_ES1_0)) {
+
/* Errata: Need to write lch even if not using chaining */
dma_write(lch, CLNK_CTRL(lch));
}