Fix extrnal fdt initialize and bootargs.
Signed-off-by: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
---
arch/sh/Kconfig | 1 -
arch/sh/kernel/setup.c | 31 ++++++++++++++++++++-----------
2 files changed, 20 insertions(+), 12 deletions(-)
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 91c7c72bc0db..5c9b50884995 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -712,7 +712,6 @@ config ROMIMAGE_MMCIF
choice
prompt "Kernel command line"
default CMDLINE_OVERWRITE
- depends on !OF || USE_BUILTIN_DTB
help
Setting this option allows the kernel command line arguments
to be set.
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 620e5cf8ae1e..03ec6f7a1153 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -30,6 +30,7 @@
#include <linux/memblock.h>
#include <linux/of.h>
#include <linux/of_fdt.h>
+#include <linux/libfdt.h>
#include <linux/uaccess.h>
#include <uapi/linux/mount.h>
#include <asm/io.h>
@@ -269,8 +270,22 @@ void __ref sh_fdt_init(phys_addr_t dt_phys)
void __init setup_arch(char **cmdline_p)
{
+#if defined(CONFIG_OF) && defined(CONFIG_OF_EARLY_FLATTREE)
+ if (IS_ENABLED(CONFIG_USE_BUILTIN_DTB)) {
+ /* Relocate Embedded DTB */
+ unflatten_and_copy_device_tree();
+ } else if (initial_boot_params) {
+ /* Reserve external DTB area */
+ memblock_reserve(__pa(initial_boot_params),
+ fdt_totalsize(initial_boot_params));
+ unflatten_device_tree();
+ }
+ /* copy from /chosen/bootargs */
+ strscpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
+#endif
enable_mmu();
+#ifndef CONFIG_OF
ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
printk(KERN_NOTICE "Boot params:\n"
@@ -299,14 +314,16 @@ void __init setup_arch(char **cmdline_p)
bss_resource.start = virt_to_phys(__bss_start);
bss_resource.end = virt_to_phys(__bss_stop)-1;
+#endif
#ifdef CONFIG_CMDLINE_OVERWRITE
strscpy(command_line, CONFIG_CMDLINE, sizeof(command_line));
-#else
- strscpy(command_line, COMMAND_LINE, sizeof(command_line));
+#elif !defined(CONFIG_OF) || defined(CONFIG_USE_BUILTIN_DTB)
+ if (*COMMAND_LINE)
+ strscpy(command_line, COMMAND_LINE, sizeof(command_line));
+#endif
#ifdef CONFIG_CMDLINE_EXTEND
strlcat(command_line, " ", sizeof(command_line));
strlcat(command_line, CONFIG_CMDLINE, sizeof(command_line));
-#endif
#endif
/* Save unparsed command line copy for /proc/cmdline */
@@ -322,14 +339,6 @@ void __init setup_arch(char **cmdline_p)
/* Let earlyprintk output early console messages */
sh_early_platform_driver_probe("earlyprintk", 1, 1);
-#ifdef CONFIG_OF_EARLY_FLATTREE
-#ifdef CONFIG_USE_BUILTIN_DTB
- unflatten_and_copy_device_tree();
-#else
- unflatten_device_tree();
-#endif
-#endif
-
paging_init();
/* Perform the machine specific initialisation */
--
2.39.2
