summaryrefslogtreecommitdiff
path: root/drivers/mmc
diff options
context:
space:
mode:
authorYangbo Lu <yangbo.lu@freescale.com>2015-04-22 13:57:00 +0800
committerYork Sun <yorksun@freescale.com>2015-05-04 09:25:19 -0700
commit5a8dbdc6b4b8b4b17c807c9bb23807cdc66f6feb (patch)
tree13de7d43ebb84d211debe354937bcf1b8701c2f8 /drivers/mmc
parentfd3a78a538b2591a420f173faea442ae969ff623 (diff)
downloadu-boot-imx-5a8dbdc6b4b8b4b17c807c9bb23807cdc66f6feb.zip
u-boot-imx-5a8dbdc6b4b8b4b17c807c9bb23807cdc66f6feb.tar.gz
u-boot-imx-5a8dbdc6b4b8b4b17c807c9bb23807cdc66f6feb.tar.bz2
mmc: fsl_esdhc: Add adapter card type identification support
Add adapter card type identification support by reading FPGA STAT_PRES1 register SDHC Card ID[0:2] bits. To use this function, define CONFIG_FSL_ESDHC_ADAPTER_IDENT. Signed-off-by: Yangbo Lu <yangbo.lu@freescale.com> Cc: York Sun <yorksun@freescale.com> Cc: Pantelis Antoniou <panto@antoniou-consulting.com> [York Sun: resolve conflicts in README.fsl-esdhc] Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/fsl_esdhc.c38
-rw-r--r--drivers/mmc/mmc.c6
-rw-r--r--drivers/mmc/mmc_private.h3
3 files changed, 46 insertions, 1 deletions
diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
index 10ec216..270ec1c 100644
--- a/drivers/mmc/fsl_esdhc.c
+++ b/drivers/mmc/fsl_esdhc.c
@@ -694,6 +694,39 @@ int fsl_esdhc_mmc_init(bd_t *bis)
return fsl_esdhc_initialize(bis, cfg);
}
+#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
+void mmc_adapter_card_type_ident(void)
+{
+ u8 card_id;
+ u8 value;
+
+ card_id = QIXIS_READ(present) & QIXIS_SDID_MASK;
+ gd->arch.sdhc_adapter = card_id;
+
+ switch (card_id) {
+ case QIXIS_ESDHC_ADAPTER_TYPE_EMMC45:
+ break;
+ case QIXIS_ESDHC_ADAPTER_TYPE_SDMMC_LEGACY:
+ break;
+ case QIXIS_ESDHC_ADAPTER_TYPE_EMMC44:
+ value = QIXIS_READ(brdcfg[5]);
+ value |= (QIXIS_SDCLKIN | QIXIS_SDCLKOUT);
+ QIXIS_WRITE(brdcfg[5], value);
+ break;
+ case QIXIS_ESDHC_ADAPTER_TYPE_RSV:
+ break;
+ case QIXIS_ESDHC_ADAPTER_TYPE_MMC:
+ break;
+ case QIXIS_ESDHC_ADAPTER_TYPE_SD:
+ break;
+ case QIXIS_ESDHC_NO_ADAPTER:
+ break;
+ default:
+ break;
+ }
+}
+#endif
+
#ifdef CONFIG_OF_LIBFDT
void fdt_fixup_esdhc(void *blob, bd_t *bd)
{
@@ -709,7 +742,10 @@ void fdt_fixup_esdhc(void *blob, bd_t *bd)
do_fixup_by_compat_u32(blob, compat, "clock-frequency",
gd->arch.sdhc_clk, 1);
-
+#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
+ do_fixup_by_compat_u32(blob, compat, "adapter-type",
+ (u32)(gd->arch.sdhc_adapter), 1);
+#endif
do_fixup_by_compat(blob, compat, "status", "okay",
4 + 1, 1);
}
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index a13769e..dc32aec 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -1588,6 +1588,9 @@ int mmc_start_init(struct mmc *mmc)
if (mmc->has_init)
return 0;
+#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
+ mmc_adapter_card_type_ident();
+#endif
board_mmc_power_init();
/* made sure it's not NULL earlier */
@@ -1739,6 +1742,9 @@ static void do_preinit(void)
list_for_each(entry, &mmc_devices) {
m = list_entry(entry, struct mmc, link);
+#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
+ mmc_set_preinit(m, 1);
+#endif
if (m->preinit)
mmc_start_init(m);
}
diff --git a/drivers/mmc/mmc_private.h b/drivers/mmc/mmc_private.h
index 16dcf9f..447a700 100644
--- a/drivers/mmc/mmc_private.h
+++ b/drivers/mmc/mmc_private.h
@@ -16,6 +16,9 @@ extern int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
struct mmc_data *data);
extern int mmc_send_status(struct mmc *mmc, int timeout);
extern int mmc_set_blocklen(struct mmc *mmc, int len);
+#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
+void mmc_adapter_card_type_ident(void);
+#endif
#ifndef CONFIG_SPL_BUILD