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arch/arm64/imx9: Clear edma4 mux conf before set

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Warm boot might fail if edma4 channel mux is
not written to default value

Signed-off-by: Jouni Ukkonen <jouni.ukkonen@unikie.com>
This commit is contained in:
Jouni Ukkonen
2024-11-06 02:56:52 +08:00
committed by Xiang Xiao
parent f1d180d56e
commit 6a0c239c8e
1 changed files with 3 additions and 0 deletions
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arch/arm64/src/imx9/imx9_edma.c
+3
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@@ -980,6 +980,9 @@ DMACH_HANDLE imx9_dmach_alloc(uint16_t dmamux, uint8_t dchpri)
if (imx9_edma_tcdhasmux(dmach->base))
{
/* Set reset value first to CH MUX */
putreg8(0, base + IMX9_EDMA_CH_MUX_OFFSET);
dmainfo("CH%d: MUX:%u->%p\n", dmach->chan, dmach->dmamux,
(void *)(base + IMX9_EDMA_CH_MUX_OFFSET));
putreg8(dmach->dmamux, base + IMX9_EDMA_CH_MUX_OFFSET);