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Diffstat (limited to 'board/freescale/common/mmc.c')
-rw-r--r-- | board/freescale/common/mmc.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/board/freescale/common/mmc.c b/board/freescale/common/mmc.c new file mode 100644 index 0000000..20eaab6 --- /dev/null +++ b/board/freescale/common/mmc.c @@ -0,0 +1,48 @@ +/* + * Copyright (C) 2016 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include <common.h> +#include <asm/arch/sys_proto.h> +#include <linux/errno.h> +#include <asm/io.h> +#include <stdbool.h> + +static int check_mmc_autodetect(void) +{ + char *autodetect_str = getenv("mmcautodetect"); + + if ((autodetect_str != NULL) && + (strcmp(autodetect_str, "yes") == 0)) { + return 1; + } + + return 0; +} + +/* This should be defined for each board */ +__weak int mmc_map_to_kernel_blk(int dev_no) +{ + return dev_no; +} + +void board_late_mmc_env_init(void) +{ + char cmd[32]; + char mmcblk[32]; + u32 dev_no = mmc_get_env_dev(); + + if (!check_mmc_autodetect()) + return; + + setenv_ulong("mmcdev", dev_no); + + /* Set mmcblk env */ + sprintf(mmcblk, "/dev/mmcblk%dp2 rootwait rw", + mmc_map_to_kernel_blk(dev_no)); + setenv("mmcroot", mmcblk); + + sprintf(cmd, "mmc dev %d", dev_no); + run_command(cmd, 0); +} |