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| author | Niko Mauno <niko.mauno@vaisala.com> | 2021-02-22 19:18:51 +0000 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2021-05-04 12:52:46 -0400 |
| commit | f0b21ebd417cfe75f266b4dc16318bb3581783b9 (patch) | |
| tree | 6331512066c3a921df043a1b6ba8b7c679a98230 /common | |
| parent | 653cd92d66771cf1fbd1b7612b06a0874d316654 (diff) | |
| download | u-boot-f0b21ebd417cfe75f266b4dc16318bb3581783b9.zip u-boot-f0b21ebd417cfe75f266b4dc16318bb3581783b9.tar.gz u-boot-f0b21ebd417cfe75f266b4dc16318bb3581783b9.tar.bz2 | |
fdt_support.c: Allow late kernel cmdline modification
By declaring board-specific board_fdt_chosen_bootargs() the kernel
command line arguments can be adjusted before injecting to flat dt
chosen node.
Signed-off-by: Niko Mauno <niko.mauno@vaisala.com>
Diffstat (limited to 'common')
| -rw-r--r-- | common/fdt_support.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/common/fdt_support.c b/common/fdt_support.c index e624bbd..7eb5ba3 100644 --- a/common/fdt_support.c +++ b/common/fdt_support.c @@ -269,6 +269,15 @@ int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end) return 0; } +/** + * board_fdt_chosen_bootargs - boards may override this function to use + * alternative kernel command line arguments + */ +__weak char *board_fdt_chosen_bootargs(void) +{ + return env_get("bootargs"); +} + int fdt_chosen(void *fdt) { int nodeoffset; @@ -286,7 +295,8 @@ int fdt_chosen(void *fdt) if (nodeoffset < 0) return nodeoffset; - str = env_get("bootargs"); + str = board_fdt_chosen_bootargs(); + if (str) { err = fdt_setprop(fdt, nodeoffset, "bootargs", str, strlen(str) + 1); |