Voltage validation should be done by CMD8. Current comparison between mmc_cfg voltages and host voltage capabilities is meaningless. So drop current comparison and let voltage validation is through CMD8.
Signed-off-by: Yangbo Lu yangbo.lu@nxp.com --- drivers/mmc/fsl_esdhc.c | 36 ++++++++++-------------------------- include/fsl_esdhc.h | 13 +++++++------ 2 files changed, 17 insertions(+), 32 deletions(-)
diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c index 7d7236c..40fd6af 100644 --- a/drivers/mmc/fsl_esdhc.c +++ b/drivers/mmc/fsl_esdhc.c @@ -684,7 +684,7 @@ static int fsl_esdhc_init(struct fsl_esdhc_priv *priv, { struct mmc_config *cfg; struct fsl_esdhc *regs; - u32 caps, voltage_caps; + u32 caps;
if (!priv) return -EINVAL; @@ -696,40 +696,24 @@ static int fsl_esdhc_init(struct fsl_esdhc_priv *priv, memset(cfg, '\0', sizeof(*cfg)); #endif
- voltage_caps = 0; caps = esdhc_read32(®s->hostcapblt); - #ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC135 - caps = caps & ~(ESDHC_HOSTCAPBLT_SRS | - ESDHC_HOSTCAPBLT_VS18 | ESDHC_HOSTCAPBLT_VS30); + caps &= ~(HOSTCAPBLT_SRS | HOSTCAPBLT_VS18 | HOSTCAPBLT_VS30); #endif - -/* T4240 host controller capabilities register should have VS33 bit */ #ifdef CONFIG_SYS_FSL_MMC_HAS_CAPBLT_VS33 - caps = caps | ESDHC_HOSTCAPBLT_VS33; + caps |= HOSTCAPBLT_VS33; #endif - - if (caps & ESDHC_HOSTCAPBLT_VS18) - voltage_caps |= MMC_VDD_165_195; - if (caps & ESDHC_HOSTCAPBLT_VS30) - voltage_caps |= MMC_VDD_29_30 | MMC_VDD_30_31; - if (caps & ESDHC_HOSTCAPBLT_VS33) - voltage_caps |= MMC_VDD_32_33 | MMC_VDD_33_34; + if (caps & HOSTCAPBLT_VS18) + cfg->voltages |= MMC_VDD_165_195; + if (caps & HOSTCAPBLT_VS30) + cfg->voltages |= MMC_VDD_29_30 | MMC_VDD_30_31; + if (caps & HOSTCAPBLT_VS33) + cfg->voltages |= MMC_VDD_32_33 | MMC_VDD_33_34;
cfg->name = "FSL_SDHC"; #if !CONFIG_IS_ENABLED(DM_MMC) cfg->ops = &esdhc_ops; #endif -#ifdef CONFIG_SYS_SD_VOLTAGE - cfg->voltages = CONFIG_SYS_SD_VOLTAGE; -#else - cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34; -#endif - if ((cfg->voltages & voltage_caps) == 0) { - printf("voltage not supported by controller\n"); - return -1; - } - if (priv->bus_width == 8) cfg->host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT; else if (priv->bus_width == 4) @@ -744,7 +728,7 @@ static int fsl_esdhc_init(struct fsl_esdhc_priv *priv, cfg->host_caps &= ~MMC_MODE_4BIT; }
- if (caps & ESDHC_HOSTCAPBLT_HSS) + if (caps & HOSTCAPBLT_HSS) cfg->host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS;
#ifdef CONFIG_ESDHC_DETECT_8_BIT_QUIRK diff --git a/include/fsl_esdhc.h b/include/fsl_esdhc.h index 33dcbee..a015df1 100644 --- a/include/fsl_esdhc.h +++ b/include/fsl_esdhc.h @@ -156,12 +156,13 @@ #define BLKATTR_SIZE(x) (x & 0x1fff) #define MAX_BLK_CNT 0x7fff /* so malloc will have enough room with 32M */
-#define ESDHC_HOSTCAPBLT_VS18 0x04000000 -#define ESDHC_HOSTCAPBLT_VS30 0x02000000 -#define ESDHC_HOSTCAPBLT_VS33 0x01000000 -#define ESDHC_HOSTCAPBLT_SRS 0x00800000 -#define ESDHC_HOSTCAPBLT_DMAS 0x00400000 -#define ESDHC_HOSTCAPBLT_HSS 0x00200000 +/* Host controller capabilities register */ +#define HOSTCAPBLT_VS18 0x04000000 +#define HOSTCAPBLT_VS30 0x02000000 +#define HOSTCAPBLT_VS33 0x01000000 +#define HOSTCAPBLT_SRS 0x00800000 +#define HOSTCAPBLT_DMAS 0x00400000 +#define HOSTCAPBLT_HSS 0x00200000
struct fsl_esdhc_cfg { phys_addr_t esdhc_base;