Add Realtek sdmmc host to support SDUC
Send CMD22 before normal read/write when the card is SDUC card
Add MMC_CAP2_SDUC to caps2
Signed-off-by: Ricky Wu <ricky_wu@xxxxxxxxxxx>
---
drivers/mmc/host/rtsx_pci_sdmmc.c | 6 ++++++
include/linux/rtsx_pci.h | 1 +
2 files changed, 7 insertions(+)
diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c
index 7dfe7c4e0077..919aa0454345 100644
--- a/drivers/mmc/host/rtsx_pci_sdmmc.c
+++ b/drivers/mmc/host/rtsx_pci_sdmmc.c
@@ -839,6 +839,8 @@ static void sd_request(struct work_struct *work)
if (!data_size) {
sd_send_cmd_get_rsp(host, cmd);
} else if (sd_rw_cmd(cmd) || sdio_extblock_cmd(cmd, data)) {
+ if (mrq->ae)
+ sd_send_cmd_get_rsp(host, mrq->ae);
cmd->error = sd_rw_multi(host, mrq);
if (!host->using_cookie)
sdmmc_post_req(host->mmc, host->mrq, 0);
@@ -846,6 +848,8 @@ static void sd_request(struct work_struct *work)
if (mmc_op_multi(cmd->opcode) && mrq->stop)
sd_send_cmd_get_rsp(host, mrq->stop);
} else {
+ if (mrq->ae)
+ sd_send_cmd_get_rsp(host, mrq->ae);
sd_normal_rw(host, mrq);
}
@@ -1445,6 +1449,8 @@ static void init_extra_caps(struct realtek_pci_sdmmc *host)
mmc->caps2 |= MMC_CAP2_NO_MMC;
if (pcr->extra_caps & EXTRA_CAPS_SD_EXPRESS)
mmc->caps2 |= MMC_CAP2_SD_EXP | MMC_CAP2_SD_EXP_1_2V;
+ if (pcr->extra_caps & EXTRA_CAPS_SDUC)
+ mmc->caps2 |= MMC_CAP2_SDUC;
}
static void realtek_init_host(struct realtek_pci_sdmmc *host)
diff --git a/include/linux/rtsx_pci.h b/include/linux/rtsx_pci.h
index 4612ef09a0c7..a36c87a52f39 100644
--- a/include/linux/rtsx_pci.h
+++ b/include/linux/rtsx_pci.h
@@ -1228,6 +1228,7 @@ struct rtsx_pcr {
#define EXTRA_CAPS_MMC_8BIT (1 << 5)
#define EXTRA_CAPS_NO_MMC (1 << 7)
#define EXTRA_CAPS_SD_EXPRESS (1 << 8)
+#define EXTRA_CAPS_SDUC (1 << 9)
u32 extra_caps;
#define IC_VER_A 0
--
2.25.1
