[U-Boot] [PATCH v2 5/5] mmc: omap_hsmmc: Fix incorrect bit operations for disabling a bit
Jean-Jacques Hiblot
jjhiblot at ti.com
Thu Sep 21 14:51:36 UTC 2017
From: Kishon Vijay Abraham I <kishon at ti.com>
omap_hsmmc driver uses "|" in a couple of places for disabling a bit.
While it's okay to use it in "mmc_reg_out" (since mmc_reg_out has a
_mask_ argument to take care of resetting a bit), it's incorrectly used
for resetting flags in "omap_hsmmc_send_cmd".
Fix it here by using "&= ~()" to reset a bit.
Signed-off-by: Kishon Vijay Abraham I <kishon at ti.com>
Signed-off-by: Jean-Jacques Hiblot <jjhiblot at ti.com>
---
arch/arm/include/asm/omap_mmc.h | 6 ++----
drivers/mmc/omap_hsmmc.c | 7 ++++---
2 files changed, 6 insertions(+), 7 deletions(-)
diff --git a/arch/arm/include/asm/omap_mmc.h b/arch/arm/include/asm/omap_mmc.h
index 128cd81..bf9de9b 100644
--- a/arch/arm/include/asm/omap_mmc.h
+++ b/arch/arm/include/asm/omap_mmc.h
@@ -90,10 +90,9 @@ struct omap_hsmmc_plat {
#define DMA_MASTER (0x1 << 20)
#define BLEN_512BYTESLEN (0x200 << 0)
#define NBLK_STPCNT (0x0 << 16)
-#define DE_DISABLE (0x0 << 0)
-#define BCE_DISABLE (0x0 << 1)
+#define DE_ENABLE (0x1 << 0)
#define BCE_ENABLE (0x1 << 1)
-#define ACEN_DISABLE (0x0 << 2)
+#define ACEN_ENABLE (0x1 << 2)
#define DDIR_OFFSET (4)
#define DDIR_MASK (0x1 << 4)
#define DDIR_WRITE (0x0 << 4)
@@ -134,7 +133,6 @@ struct omap_hsmmc_plat {
#define ICS_NOTREADY (0x0 << 1)
#define ICE_OSCILLATE (0x1 << 0)
#define CEN_MASK (0x1 << 2)
-#define CEN_DISABLE (0x0 << 2)
#define CEN_ENABLE (0x1 << 2)
#define CLKD_OFFSET (6)
#define CLKD_MASK (0x3FF << 6)
diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c
index fcda0e2..1c3d1a5 100644
--- a/drivers/mmc/omap_hsmmc.c
+++ b/drivers/mmc/omap_hsmmc.c
@@ -294,7 +294,7 @@ static int omap_hsmmc_init_setup(struct mmc *mmc)
dsor = 240;
mmc_reg_out(&mmc_base->sysctl, (ICE_MASK | DTO_MASK | CEN_MASK),
- (ICE_STOP | DTO_15THDTO | CEN_DISABLE));
+ (ICE_STOP | DTO_15THDTO));
mmc_reg_out(&mmc_base->sysctl, ICE_MASK | CLKD_MASK,
(dsor << CLKD_OFFSET) | ICE_OSCILLATE);
start = get_timer(0);
@@ -542,7 +542,8 @@ static int omap_hsmmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
/* enable default flags */
flags = flags | (CMD_TYPE_NORMAL | CICE_NOCHECK | CCCE_NOCHECK |
- MSBS_SGLEBLK | ACEN_DISABLE | BCE_DISABLE | DE_DISABLE);
+ MSBS_SGLEBLK);
+ flags &= ~(ACEN_ENABLE | BCE_ENABLE | DE_ENABLE);
if (cmd->resp_type & MMC_RSP_CRC)
flags |= CCCE_CHECK;
@@ -809,7 +810,7 @@ static int omap_hsmmc_set_ios(struct udevice *dev)
}
mmc_reg_out(&mmc_base->sysctl, (ICE_MASK | DTO_MASK | CEN_MASK),
- (ICE_STOP | DTO_15THDTO | CEN_DISABLE));
+ (ICE_STOP | DTO_15THDTO));
mmc_reg_out(&mmc_base->sysctl, ICE_MASK | CLKD_MASK,
(dsor << CLKD_OFFSET) | ICE_OSCILLATE);
--
1.9.1
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