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authorNitin Garg <nitin.garg@freescale.com>2014-05-27 17:59:14 -0500
committerNitin Garg <nitin.garg@freescale.com>2014-06-13 10:17:00 -0500
commitcaf940dcc880b777365e35294ab757609fc9ac5a (patch)
tree7a5c6e0e84d1488cceae02ed117a1d631ea55540 /board/htkw/mcx
parent624f876980209f9073e6fb834541efa89192d484 (diff)
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ENGR00315499-11 ARM:imx6 Change static environment SD/MMC storage to dynamic
imx6 boards (sabresd, sabreauto, arm2 and slevk) have multiple SD/MMC ports to boot. But current uboot hard code the SD/MMC port for environment variables storage. So if customer changes a port without modifying the configuration "CONFIG_SYS_MMC_ENV_DEV", error will issue at saving and loading environment. Implement a mechanism to detect SD/MMC port from SRC SMBR register, and override the default "mmc_get_env_devno". The "board_late_mmc_env_init" is used to set "mmcdev" when booting from SD/MMC port. Finally after booting from SD/MMC, the environment storage device and "mmcdev" are both set to current SD/MMC port. Customers don't need to re-build the image if booting from different SD/MMC port. This patch also adds SD1 and SD3 support to imx6slevk BSP, and adds support for sabreauto SD1 slot on base board. Signed-off-by: Ye.Li <B37916@freescale.com> Signed-off-by: Nitin Garg <nitin.garg@freescale.com>
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