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sh: init: use OF_EARLY_FLATTREE for early init 

When CONFIG_OF_EARLY_FLATTREE and CONFIG_SH_DEVICE_TREE are not set,
SH3 build fails with a call to early_init_dt_scan(), so in
arch/sh/kernel/setup.c and arch/sh/kernel/head_32.S, use
CONFIG_OF_EARLY_FLATTREE instead of CONFIG_OF_FLATTREE.

Fixes this build error:
../arch/sh/kernel/setup.c: In function 'sh_fdt_init':
../arch/sh/kernel/setup.c:262:26: error: implicit declaration of function 'early_init_dt_scan' [-Werror=implicit-function-declaration]
  262 |         if (!dt_virt || !early_init_dt_scan(dt_virt)) {

Fixes: 03767daa13 ("sh: fix build regression with CONFIG_OF && !CONFIG_OF_FLATTREE")
Fixes: eb6b6930a7 ("sh: fix memory corruption of unflattened device tree")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Suggested-by: Rob Herring <robh+dt@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: devicetree@vger.kernel.org
Cc: Rich Felker <dalias@libc.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: linux-sh@vger.kernel.org
Cc: stable@vger.kernel.org
Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Link: https://lore.kernel.org/r/20230306040037.20350-4-rdunlap@infradead.org
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
This commit is contained in:
Randy Dunlap 2023-03-05 20:00:33 -08:00 committed by John Paul Adrian Glaubitz
parent d1155e4132
commit 6cba655543
2 changed files with 5 additions and 5 deletions
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6
arch/sh/kernel/head_32.S
View File

@ -64,7 +64,7 @@ ENTRY(_stext)
ldc r0, r6_bank
#endif
#ifdef CONFIG_OF_FLATTREE
#ifdef CONFIG_OF_EARLY_FLATTREE
mov r4, r12 ! Store device tree blob pointer in r12
#endif
@ -315,7 +315,7 @@ ENTRY(_stext)
10:
#endif
#ifdef CONFIG_OF_FLATTREE
#ifdef CONFIG_OF_EARLY_FLATTREE
mov.l 8f, r0 ! Make flat device tree available early.
jsr @r0
mov r12, r4
@ -346,7 +346,7 @@ ENTRY(stack_start)
5: .long start_kernel
6: .long cpu_init
7: .long init_thread_union
#if defined(CONFIG_OF_FLATTREE)
#if defined(CONFIG_OF_EARLY_FLATTREE)
8: .long sh_fdt_init
#endif

4
arch/sh/kernel/setup.c
View File

@ -244,7 +244,7 @@ void __init __weak plat_early_device_setup(void)
{
}
#ifdef CONFIG_OF_FLATTREE
#ifdef CONFIG_OF_EARLY_FLATTREE
void __ref sh_fdt_init(phys_addr_t dt_phys)
{
static int done = 0;
@ -326,7 +326,7 @@ void __init setup_arch(char **cmdline_p)
/* Let earlyprintk output early console messages */
sh_early_platform_driver_probe("earlyprintk", 1, 1);
#ifdef CONFIG_OF_FLATTREE
#ifdef CONFIG_OF_EARLY_FLATTREE
#ifdef CONFIG_USE_BUILTIN_DTB
unflatten_and_copy_device_tree();
#else