Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Peter Ujfalusi <> | Subject | [PATCH] dmaengine: ti: k3-udma: Update rchan_oes_offset for am654 SYSFW ABI 3.0 | Date | Mon, 31 Aug 2020 12:10:19 +0300 |
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SYSFW ABI 3.0 has changed the rchan_oes_offset value for am654 to support SR2.
Since the kernel now needs SYSFW API 3.0 to work because the merged irqchip update, we need to also update the am654 rchan_oes_offset.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> --- Hi Vinod,
A series from Lokesh to support sysfw ABI 3.0 and newer is now in mainline under v5.9-rc3 tag. With his series Linux can not really boot into a usable state with older sysfw and the ABI 3.0 have additional changes affecting UDMA on am654: the rchan_oes_offset number is changed to better align with j72xx and to be able to support both SR1 and SR2 of am654.
Can you send this patch for -rc4 to fix the regression now in mainline? The regression is that one can not request TR mode channel to service a peripheral.
We do not have users upstream depending on this, but I do have out of tree audio support and cutomers might pick up 5.9 from mainline when it is released.
Thank you, Peter
drivers/dma/ti/k3-udma.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c index 989998b6e078..9a7048bcf0f1 100644 --- a/drivers/dma/ti/k3-udma.c +++ b/drivers/dma/ti/k3-udma.c @@ -3091,14 +3091,14 @@ static struct udma_match_data am654_main_data = { .psil_base = 0x1000, .enable_memcpy_support = true, .statictr_z_mask = GENMASK(11, 0), - .rchan_oes_offset = 0x2000, + .rchan_oes_offset = 0x200, }; static struct udma_match_data am654_mcu_data = { .psil_base = 0x6000, .enable_memcpy_support = false, .statictr_z_mask = GENMASK(11, 0), - .rchan_oes_offset = 0x2000, + .rchan_oes_offset = 0x200, }; static struct udma_match_data j721e_main_data = { -- Peter Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
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