LM
/
u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

mmc: tmio: sdhi: Clear HS400 settings when resetting SCC 

Make sure to clear HS400 configuration when resetting the SCC block.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Marek Vasut 2018-06-13 08:02:55 +02:00 committed by Marek Vasut
parent 52e1796883
commit dc1488f1d2
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/mmc/renesas-sdhi.c
View File

@ -34,6 +34,8 @@
#define RENESAS_SDHI_SCC_RVSREQ_RVSERR BIT(2) #define RENESAS_SDHI_SCC_RVSREQ_RVSERR BIT(2)
#define RENESAS_SDHI_SCC_SMPCMP 0x818 #define RENESAS_SDHI_SCC_SMPCMP 0x818
#define RENESAS_SDHI_SCC_TMPPORT2 0x81c #define RENESAS_SDHI_SCC_TMPPORT2 0x81c
#define RENESAS_SDHI_SCC_TMPPORT2_HS400EN BIT(31)
#define RENESAS_SDHI_SCC_TMPPORT2_HS400OSEL BIT(4)
#define RENESAS_SDHI_MAX_TAP 3 #define RENESAS_SDHI_MAX_TAP 3
@ -90,6 +92,11 @@ static void renesas_sdhi_reset_tuning(struct tmio_sd_priv *priv)
reg &= ~RENESAS_SDHI_SCC_CKSEL_DTSEL; reg &= ~RENESAS_SDHI_SCC_CKSEL_DTSEL;
tmio_sd_writel(priv, reg, RENESAS_SDHI_SCC_CKSEL); tmio_sd_writel(priv, reg, RENESAS_SDHI_SCC_CKSEL);
reg = tmio_sd_readl(priv, RENESAS_SDHI_SCC_TMPPORT2);
reg &= ~(RENESAS_SDHI_SCC_TMPPORT2_HS400EN |
RENESAS_SDHI_SCC_TMPPORT2_HS400OSEL);
tmio_sd_writel(priv, reg, RENESAS_SDHI_SCC_TMPPORT2);
reg = tmio_sd_readl(priv, TMIO_SD_CLKCTL); reg = tmio_sd_readl(priv, TMIO_SD_CLKCTL);
reg |= TMIO_SD_CLKCTL_SCLKEN; reg |= TMIO_SD_CLKCTL_SCLKEN;
tmio_sd_writel(priv, reg, TMIO_SD_CLKCTL); tmio_sd_writel(priv, reg, TMIO_SD_CLKCTL);