Patchwork [U-Boot,2/2,V2] powerpc/esdhc: Add 3.3v voltage support in esdhc capacity register

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Submitter Haijun.Zhang
Date Oct. 25, 2013, 4:36 a.m.
Message ID <1382675805-18509-2-git-send-email-Haijun.Zhang@freescale.com>
Download mbox | patch
Permalink /patch/286083/
State Superseded
Delegated to: York Sun
Headers show

Comments

Haijun.Zhang - Oct. 25, 2013, 4:36 a.m.
T4240 eSDHC host capabilities reigster should have VS33 bit define.
Add quirk CONFIG_SYS_FSL_MMC_HAS_CAPBLT_VS33 to deal with capacity
missing

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Haijun Zhang <Haijun.Zhang@freescale.com>
---
changes for V2:
	- Rewrite the comment

 arch/powerpc/include/asm/config_mpc85xx.h | 1 +
 drivers/mmc/fsl_esdhc.c                   | 6 ++++++
 2 files changed, 7 insertions(+)

Patch

diff --git a/arch/powerpc/include/asm/config_mpc85xx.h b/arch/powerpc/include/asm/config_mpc85xx.h
index 946ea97..84e79c8 100644
--- a/arch/powerpc/include/asm/config_mpc85xx.h
+++ b/arch/powerpc/include/asm/config_mpc85xx.h
@@ -596,6 +596,7 @@ 
 #define CONFIG_SYS_FSL_SRIO_LIODN
 #define CONFIG_SYS_FSL_USB_DUAL_PHY_ENABLE
 #define CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY
+#define CONFIG_SYS_FSL_MMC_HAS_CAPBLT_VS33
 #define CONFIG_SYS_FSL_ERRATUM_A004468
 #define CONFIG_SYS_FSL_ERRATUM_A_004934
 #define CONFIG_SYS_FSL_ERRATUM_A005871
diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
index d4c1eef..b8b2907 100644
--- a/drivers/mmc/fsl_esdhc.c
+++ b/drivers/mmc/fsl_esdhc.c
@@ -545,6 +545,12 @@  int fsl_esdhc_initialize(bd_t *bis, struct fsl_esdhc_cfg *cfg)
 	caps = caps & ~(ESDHC_HOSTCAPBLT_SRS |
 			ESDHC_HOSTCAPBLT_VS18 | ESDHC_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;
+#endif
+
 	if (caps & ESDHC_HOSTCAPBLT_VS18)
 		voltage_caps |= MMC_VDD_165_195;
 	if (caps & ESDHC_HOSTCAPBLT_VS30)