[PATCH] mmc: sdhci: Fix possible Synchronous Abort using PIO mode

[Peng Fan (OSS)]

From: Peng Fan <peng.fan at nxp.com>


On Thu, 23 Jan 2025 21:48:48 +0000, Jonas Karlman wrote:
> When MMC_SDHCI_SDMA=y or MMC_SDHCI_ADMA=y and PIO mode is used
> dma_unmap_single() is called on an unmapped address, 0x0. This may
> result in a Synchronous Abort:
> 
>   ## Checking hash(es) for Image atf-1 ... sha256+ OK
>   CMD_SEND:16
>                   ARG                      0x00000200
>                   MMC_RSP_R1,5,6,7         0x00000900
>   CMD_SEND:18
>                   ARG                      0x00004005
>   "Synchronous Abort" handler, esr 0x96000147
>   elr: 00000000400015bc lr : 0000000040012b4c
>   x 0: 0000000000008000 x 1: 0000000000092600
>   x 2: 0000000000000040 x 3: 000000000000003f
>   x 4: 0000000000000030 x 5: 0000000000000001
>   x 6: 0000000000000001 x 7: 0000000000000000
>   x 8: 000000000000000a x 9: 0000000000000090
>   x10: 0000000043dffc68 x11: 0000000043c00440
>   x12: 0000000043c00440 x13: ffffffffbfe00000
>   x14: 000000000000031c x15: 0000000240000000
>   x16: 000000004001145c x17: 0000000000000032
>   x18: 0000000043dffef0 x19: 0000000043c00000
>   x20: 0000000043dffbc8 x21: 0000000000000000
>   x22: 00000000000f3d95 x23: 0000000000000002
>   x24: 0000000000000493 x25: 0000000000092600
>   x26: 0000000000000001 x27: 0000000000000001
>   x28: 0000000000000008 x29: 0000000043dffab0
> 
> [...]

Applied, thanks!

[1/1] mmc: sdhci: Fix possible Synchronous Abort using PIO mode
      commit: 2057bb4b5160a3668d4785adb6ce0f0d08325c48

Best regards,
-- 
Peng Fan <peng.fan at nxp.com>