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| /openbmc/u-boot/drivers/mmc/ |
| H A D | mmc-uclass.c | 02ad33aa Wed Feb 01 22:41:14 CST 2017 Jaehoon Chung <jh80.chung@samsung.com> mmc: mmc-uclass: use the fixed devnum with alias node
If there are alias nodes as "mmc", use the devnum as alias index
number.
This patch is for fixing a problem of Exynos4 series.
Problem is the below thing.
Current legacy mode:
EXYNOS DWMMC: 0, SAMSUNG SDHCI: 1
After using DM:
SAMSUNG SDHCI: 0, EXYNOS DWMMC: 1
Dev index is swapped.
Then u-boot can't find the kernel image..because it is already set to 0 as mmcdev.
If change from legacy to DM, also needs to touch all exynos4 config file.
For using simply, just supporting the fixed devnum with alias node is better than it.
Usage:
alaise {
....
mmc0 = &sdhci2; /* eMMC */
mmc1 = &sdhci1; /* SD */
...
}
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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