[U-Boot] [PATCH 1/3] boot: arm: Enable support for custom board_prep_linux

[Lokesh Vutla]

Once the arch specific boot_prepare_linux completes, boards wants to
have a custom preparation for linux. Add support for a custom
board_prep_linux.

Signed-off-by: Lokesh Vutla <lokeshvutla at ti.com>
---
- This is similar to hook available in arch/arc/
https://gitlab.denx.de/u-boot/u-boot/blob/master/arch/arc/lib/bootm.c#L48

 arch/arm/lib/bootm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c
index 1638f1e81d..488358a331 100644
--- a/arch/arm/lib/bootm.c
+++ b/arch/arm/lib/bootm.c
@@ -224,6 +224,8 @@ static void do_nonsec_virt_switch(void)
 }
 #endif
 
+__weak void board_prep_linux(bootm_headers_t *images) { }
+
 /* Subcommand: PREP */
 static void boot_prep_linux(bootm_headers_t *images)
 {
@@ -270,6 +272,8 @@ static void boot_prep_linux(bootm_headers_t *images)
 		printf("FDT and ATAGS support not compiled in - hanging\n");
 		hang();
 	}
+
+	board_prep_linux(images);
 }
 
 __weak bool armv7_boot_nonsec_default(void)
-- 
2.23.0