diff options
| author | Suriyan Ramasami <suriyan.r@gmail.com> | 2014-11-27 13:24:16 -0800 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-12-08 09:35:47 -0500 |
| commit | 48aead71c1ad2c93fffa182e798f1bcbb5f6dd9d (patch) | |
| tree | 865d2bf68980ec0c42d39d41133edb9f9566bb6c | |
| parent | 8b923a56dc0eb9f1ce9d616ae93bd0f63857f315 (diff) | |
fdt: Allow non-FDT kernels to boot when CONFIG_OF_LIBFDT is defined
The boot commands - bootz/bootm mandate a third argument which is the
address to the FDT blob. In cases where this argument is not specified,
boot fails with a message indicating a missing FDT.
This causes non-FDT kernels to fail to boot. This patch allows both FDT
and non-FDT kernels to boot by making the third parameter to the bootm/bootz
optional.
Signed-off-by: Suriyan Ramasami <suriyan.r@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
[trini: Update again for covering appended DTB case after last revert in
this area]
Signed-off-by: Tom Rini <trini@ti.com>
| -rw-r--r-- | common/image-fdt.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/common/image-fdt.c b/common/image-fdt.c index 8db3ccb4e7..e3f06cdd1a 100644 --- a/common/image-fdt.c +++ b/common/image-fdt.c @@ -237,6 +237,7 @@ int boot_get_fdt(int flag, int argc, char * const argv[], uint8_t arch, int fdt_noffset; #endif const char *select = NULL; + int ok_no_fdt = 0; *of_flat_tree = NULL; *of_size = 0; @@ -309,7 +310,7 @@ int boot_get_fdt(int flag, int argc, char * const argv[], uint8_t arch, fdt_addr); fdt_hdr = image_get_fdt(fdt_addr); if (!fdt_hdr) - goto error; + goto no_fdt; /* * move image data to the load address, @@ -379,7 +380,7 @@ int boot_get_fdt(int flag, int argc, char * const argv[], uint8_t arch, break; default: puts("ERROR: Did not find a cmdline Flattened Device Tree\n"); - goto error; + goto no_fdt; } printf(" Booting using the fdt blob at %#08lx\n", fdt_addr); @@ -413,11 +414,11 @@ int boot_get_fdt(int flag, int argc, char * const argv[], uint8_t arch, } } else { debug("## No Flattened Device Tree\n"); - return 0; + goto no_fdt; } } else { debug("## No Flattened Device Tree\n"); - return 0; + goto no_fdt; } *of_flat_tree = fdt_blob; @@ -427,9 +428,15 @@ int boot_get_fdt(int flag, int argc, char * const argv[], uint8_t arch, return 0; +no_fdt: + ok_no_fdt = 1; error: *of_flat_tree = NULL; *of_size = 0; + if (!select && ok_no_fdt) { + debug("Continuing to boot without FDT\n"); + return 0; + } return 1; } |