>From: Kamat, Nishant
>
>Vikram,
>
>> From: linux-omap-owner@xxxxxxxxxxxxxxx
>>
>> 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
>>
>> Signed-off-by: Vikram Pandita <vikram.pandita@xxxxxx>
>> ---
>> 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..feebaf3 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_omap24xx() ||
>
>
>This should be cpu_is_omap242x() || ...
Good catch. Re-spinning v2 of patch.
>
>
>Regards,
>Nishant
>
>
>
>
>> + (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));
>> }
>> --
>> 1.6.3.3.334.g916e1
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