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| author | Vikram Pandita <vikram.pandita@ti.com> | 2009-08-10 14:49:50 +0300 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2009-08-10 14:49:50 +0300 |
| commit | 284119c48f4a0c469b3e0237b500e536b4bc7b6f (patch) | |
| tree | e931edf881d082a60f99553d521d92923ed90435 /arch/arm | |
| parent | cd92204924fafbd5c7241dfd12ca3176d542e0c5 (diff) | |
| download | kernel_samsung_crespo-284119c48f4a0c469b3e0237b500e536b4bc7b6f.zip kernel_samsung_crespo-284119c48f4a0c469b3e0237b500e536b4bc7b6f.tar.gz kernel_samsung_crespo-284119c48f4a0c469b3e0237b500e536b4bc7b6f.tar.bz2 | |
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>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/plat-omap/dma.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index 7677a4a..e3ac94f 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)); } |