Board can implement function setup_board_tags which is used for adding atags
Signed-off-by: Pali Rohár pali.rohar@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");