hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

sdhci-of: Fix the wrong accessor to HOSTVER register 

Freescale eSDHC controller has the special order for
the HOST version register. that is not same as the other's
registers. The address of HOSTVER in spec is 0xFE, and
we need use the in_be16(0xFE) to access it, not in_be16(0xFC).

Signed-off-by: Dave Liu <daveliu@freescale.com>
Acked-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
This commit is contained in:
Dave Liu 2009-05-06 18:40:07 +08:00 committed by Pierre Ossman
parent a6d297f008
commit fbf6a5fcbc
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/mmc/host/sdhci-of.c
View File

@ -55,7 +55,13 @@ static u32 esdhc_readl(struct sdhci_host *host, int reg)
static u16 esdhc_readw(struct sdhci_host *host, int reg) static u16 esdhc_readw(struct sdhci_host *host, int reg)
{ {
return in_be16(host->ioaddr + (reg ^ 0x2)); u16 ret;
if (unlikely(reg == SDHCI_HOST_VERSION))
ret = in_be16(host->ioaddr + reg);
else
ret = in_be16(host->ioaddr + (reg ^ 0x2));
return ret;
} }
static u8 esdhc_readb(struct sdhci_host *host, int reg) static u8 esdhc_readb(struct sdhci_host *host, int reg)