[U-Boot] [PATCH v4 1/5] arm bootm: Allow to pass board specified atags
Pali Rohár
pali.rohar at gmail.com
Fri Oct 19 14:00:04 CEST 2012
Board can implement function setup_board_tags which is used for adding atags
Signed-off-by: Pali Rohár <pali.rohar at gmail.com>
---
Changes in v4:
- Added commit message
- Use __weak instead gcc attribute
arch/arm/include/asm/setup.h | 5 +++++
arch/arm/lib/bootm.c | 4 ++++
2 files changed, 9 insertions(+)
diff --git a/arch/arm/include/asm/setup.h b/arch/arm/include/asm/setup.h
index 89df4dc..78a7fac 100644
--- a/arch/arm/include/asm/setup.h
+++ b/arch/arm/include/asm/setup.h
@@ -267,3 +267,8 @@ struct meminfo {
extern struct meminfo meminfo;
#endif
+
+/*
+ * Board specified tags
+ */
+void setup_board_tags(struct tag **in_params);
diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c
index a9070d5..9323db0 100644
--- a/arch/arm/lib/bootm.c
+++ b/arch/arm/lib/bootm.c
@@ -34,6 +34,7 @@
#include <libfdt.h>
#include <fdt_support.h>
#include <asm/bootm.h>
+#include <linux/compiler.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -266,6 +267,8 @@ static int create_fdt(bootm_headers_t *images)
}
#endif
+__weak void setup_board_tags(struct tag **in_params) {}
+
/* Subcommand: PREP */
static void boot_prep_linux(bootm_headers_t *images)
{
@@ -307,6 +310,7 @@ static void boot_prep_linux(bootm_headers_t *images)
setup_initrd_tag(gd->bd, images->rd_start,
images->rd_end);
#endif
+ setup_board_tags(¶ms);
setup_end_tag(gd->bd);
#else /* all tags */
printf("FDT and ATAGS support not compiled in - hanging\n");
--
1.7.9.5
More information about the U-Boot
mailing list