"Das U-Boot" Source Tree
boot: Warn users about fdt_high=~0 usage
In case the 'fdt_high' environment variable is set to ~0, warn users
about the dangers of the fdt_high usage. This will hopefully lead to
removal of most of the fdt_high ~0 usage over time.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
authored by
Marek Vasut
and committed by
Tom Rini
9235da94
48e56ac2
+6
+6
boot/image-fdt.c
+6
boot/image-fdt.c
···
189
189
/* All ones means use fdt in place */
190
190
of_start = fdt_blob;
191
191
addr = map_to_sysmem(fdt_blob);
192
+
printf("WARNING:\n"
193
+
"The 'fdt_high' environment variable is set to ~0. This is known to cause\n"
194
+
"boot failures due to placement of DT at non-8-byte-aligned addresses.\n"
195
+
"This system will likely fail to boot. Unset the 'fdt_high' environment\n"
196
+
"variable and submit a fix upstream.\n");
197
+
192
198
err = lmb_alloc_mem(LMB_MEM_ALLOC_ADDR, 0, &addr,
193
199
of_len, LMB_NONE);
194
200
if (err) {