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| author | Andrey Panov <rockford@yandex.ru> | 2015-01-17 15:54:35 +0300 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2015-01-19 08:38:12 +0100 |
| commit | 58475f4599ebd556d47d7f632a78f666d2dfcfd4 (patch) | |
| tree | f2a851469c496297cb73f9bf578530c1c2a30281 /drivers/mci/imx-esdhc.c | |
| parent | 78582e53dcb2c6f42282ddf27b66e5bc5b7202cc (diff) | |
| download | barebox-58475f4599ebd556d47d7f632a78f666d2dfcfd4.tar.gz barebox-58475f4599ebd556d47d7f632a78f666d2dfcfd4.tar.xz | |
MMC: IMX: Reset MMC_BOOT register after controller reset.
This helps with EMMC detection when booting from EMMC directly.
Taken from u-boot.
Signed-off-by: Andrey Panov <rockford@yandex.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/mci/imx-esdhc.c')
| -rw-r--r-- | drivers/mci/imx-esdhc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/mci/imx-esdhc.c b/drivers/mci/imx-esdhc.c index 239cd375fa..23bdc1fb15 100644 --- a/drivers/mci/imx-esdhc.c +++ b/drivers/mci/imx-esdhc.c @@ -471,6 +471,9 @@ static int esdhc_init(struct mci_host *mci, struct device_d *dev) esdhc_write32(regs + SDHCI_CLOCK_CONTROL__TIMEOUT_CONTROL__SOFTWARE_RESET, SYSCTL_HCKEN | SYSCTL_IPGEN); + /* RSTA doesn't reset MMC_BOOT register, so manually reset it */ + esdhc_write32(regs + SDHCI_MMC_BOOT, 0); + /* Set the initial clock speed */ set_sysctl(mci, 400000); |