On 1/10/23 20:31, Ashok Reddy Soma wrote:
HS400 is indicated in bit63 of capability register in few IP's. Add a quirk to check this and add HS400 to host capabilities.
Signed-off-by: Ashok Reddy Soma ashok.reddy.soma@amd.com
Reviewed-by: Jaehoon Chung jh80.chung@samsung.com
Best Regards, Jaehoon Chung
drivers/mmc/sdhci.c | 4 ++++ include/sdhci.h | 3 +++ 2 files changed, 7 insertions(+)
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c index 181ab9b7cb..c6b250b9a1 100644 --- a/drivers/mmc/sdhci.c +++ b/drivers/mmc/sdhci.c @@ -995,6 +995,10 @@ int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host, cfg->host_caps |= MMC_CAP(UHS_SDR50); }
- if ((host->quirks & SDHCI_QUIRK_CAPS_BIT63_FOR_HS400) &&
(caps_1 & SDHCI_SUPPORT_HS400))cfg->host_caps |= MMC_CAP(MMC_HS_400);- if (caps_1 & SDHCI_SUPPORT_DDR50) cfg->host_caps |= MMC_CAP(UHS_DDR50);
diff --git a/include/sdhci.h b/include/sdhci.h index 64a3d309da..70fefca2a9 100644 --- a/include/sdhci.h +++ b/include/sdhci.h @@ -189,6 +189,7 @@ #define SDHCI_SUPPORT_SDR50 0x00000001 #define SDHCI_SUPPORT_SDR104 0x00000002 #define SDHCI_SUPPORT_DDR50 0x00000004 +#define SDHCI_SUPPORT_HS400 BIT(31) #define SDHCI_USE_SDR50_TUNING 0x00002000
#define SDHCI_CLOCK_MUL_MASK 0x00FF0000 @@ -248,6 +249,8 @@ #define SDHCI_QUIRK_USE_WIDE8 (1 << 8) #define SDHCI_QUIRK_NO_1_8_V (1 << 9) #define SDHCI_QUIRK_SUPPORT_SINGLE (1 << 10) +/* Capability register bit-63 indicates HS400 support */ +#define SDHCI_QUIRK_CAPS_BIT63_FOR_HS400 BIT(11)
/* to make gcc happy */ struct sdhci_host;