From 225d30b70846eb534bc6b607d67c959ab05beaa5 Mon Sep 17 00:00:00 2001 From: Philipp Tomsich Date: Thu, 22 Jun 2017 23:38:36 +0200 Subject: spl: add a 'return to bootrom' boot method Some devices (e.g. the RK3368) have only limited SRAM, but provide support for loading the next boot stage after our SPL performs basic setup (e.g. DRAM). For target systems like these, we add a boot device BOOTROM that will invoke a board-specific hook to return to the bootrom (if supported). Signed-off-by: Philipp Tomsich Reviewed-by: Tom Rini Reviewed-by: Simon Glass --- include/spl.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include') diff --git a/include/spl.h b/include/spl.h index ffadce93c7b..ce4cf0abbeb 100644 --- a/include/spl.h +++ b/include/spl.h @@ -268,4 +268,14 @@ int spl_mmc_load_image(struct spl_image_info *spl_image, struct spl_boot_device *bootdev); void bl31_entry(void); + +/** + * board_return_to_bootrom - allow for boards to continue with the boot ROM + * + * If a board (e.g. the Rockchip RK3368 boards) provide some + * supporting functionality for SPL in their boot ROM and the SPL + * stage wants to return to the ROM code to continue booting, boards + * can implement 'board_return_to_bootrom'. + */ +void board_return_to_bootrom(void); #endif -- cgit v1.2.3