diff options
| author | Simon Glass <sjg@chromium.org> | 2021-12-17 06:59:31 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2021-12-23 18:24:40 +0300 |
| commit | 985503439762c3168aeb80f529bb9bbcd773dd2c (patch) | |
| tree | f3f235f227689bf3c6260a6af3d5a930b6941966 /lib/fdtdec.c | |
| parent | ba83d8593bde7aec6055ea5fe200b8db6f1b0810 (diff) | |
| download | u-boot-985503439762c3168aeb80f529bb9bbcd773dd2c.tar.xz | |
fdt: Don't call board_fdt_blob_setup() without OF_BOARD
At present this override function is called even when OF_BOARD is not
enabled. This makes it impossible to disable this feature and in fact
makes the OF_BOARD option useless.
Reinstate its intended purpose, so that it is possible to switch between
the appended devicetree and one provided by the board's custom function.
A follower patch adds warnings for this scenario, but for now we don't
have a Kconfig that definitively tells us that OF_BOARD should be used.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'lib/fdtdec.c')
| -rw-r--r-- | lib/fdtdec.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/lib/fdtdec.c b/lib/fdtdec.c index a7f62123a9..31a509bc22 100644 --- a/lib/fdtdec.c +++ b/lib/fdtdec.c @@ -1203,15 +1203,15 @@ static int uncompress_blob(const void *src, ulong sz_src, void **dstp) return 0; } -/* - * For CONFIG_OF_SEPARATE, the board may optionally implement this to - * provide and/or fixup the fdt. +/** + * fdt_find_separate() - Find a devicetree at the end of the image + * + * @return pointer to FDT blob */ -__weak void *board_fdt_blob_setup(int *err) +static void *fdt_find_separate(void) { void *fdt_blob = NULL; - *err = 0; #ifdef CONFIG_SPL_BUILD /* FDT is at end of BSS unless it is in a different memory region */ if (IS_ENABLED(CONFIG_SPL_SEPARATE_BSS)) @@ -1626,13 +1626,16 @@ int fdtdec_setup(void) int ret; /* The devicetree is typically appended to U-Boot */ - if (IS_ENABLED(CONFIG_OF_SEPARATE) || IS_ENABLED(CONFIG_OF_BOARD)) { - /* Allow the board to override the fdt address. */ + if (IS_ENABLED(CONFIG_OF_SEPARATE)) + gd->fdt_blob = fdt_find_separate(); + else /* embed dtb in ELF file for testing / development */ + gd->fdt_blob = dtb_dt_embedded(); + + /* Allow the board to override the fdt address. */ + if (IS_ENABLED(CONFIG_OF_BOARD)) { gd->fdt_blob = board_fdt_blob_setup(&ret); if (ret) return ret; - } else { /* embed dtb in ELF file for testing / development */ - gd->fdt_blob = dtb_dt_embedded(); } if (!IS_ENABLED(CONFIG_SPL_BUILD)) { |