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[1/2] mmc: rtsx: add R1-no-CRC mmc command type handle

Message ID d450ec5a404692c840e46cc0ab3147fae607d22a.1395107222.git.micky_ching@realsil.com.cn (mailing list archive)
State New, archived
Headers show

Commit Message

micky_ching@realsil.com.cn March 18, 2014, 2:01 a.m. UTC 
From: Micky Ching <micky_ching@realsil.com.cn>

commit a27fbf2f067b0cd6f172c8b696b9a44c58bfaa7a
<mmc: add ignorance case for CMD13 CRC error>
produced a cmd.flags unhandled in realtek pci host driver.
This will make MMC card failed initialize, this patch is
used to handle the new cmd.flags condition and MMC card can be used.

Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
---
 drivers/mmc/host/rtsx_pci_sdmmc.c |    3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c
index 5fb994f..0d8904a 100644
--- a/drivers/mmc/host/rtsx_pci_sdmmc.c
+++ b/drivers/mmc/host/rtsx_pci_sdmmc.c
@@ -346,6 +346,9 @@  static void sd_send_cmd(struct realtek_pci_sdmmc *host, struct mmc_command *cmd)
 	case MMC_RSP_R1:
 		rsp_type = SD_RSP_TYPE_R1;
 		break;
+	case MMC_RSP_R1 & ~MMC_RSP_CRC:
+		rsp_type = SD_RSP_TYPE_R1 | SD_NO_CHECK_CRC7;
+		break;
 	case MMC_RSP_R1B:
 		rsp_type = SD_RSP_TYPE_R1b;
 		break;