u-boot.git/arch/arm/mach-rockchip/save_boot_param.S, branch main

rockchip: back-to-bootrom: replace assembly-implementation with C-code

2017-11-21T22:57:22Z

The back-to-bootrom implementation for Rockchip has always relied on the stack-pointer being valid on entry, so there was little reason to have this as an assembly implementation. This provides a new C-only implementation of save_boot_params and back_to_bootrom (relying on setjmp/longjmp) and removes the older assembly-only implementation. Signed-off-by: Philipp Tomsich Tested-by: Andy Yan

rockchip: back-to-bootrom: add 'back-to-bootrom' support for AArch64

2017-08-13T15:12:19Z

The back-to-bootrom support for Rockchip is equivalent to an (assembly) implementation of setjmp/longjmp (i.e. it saves the stack-pointer, link-register and callee-saved registers). Up until now, this had only been implemented for AArch32 (i.e. ARMv7 or older), which puts the new ARMv8 devices (which boot in AArch64 mode) at a slight disadvantage. To allow use of the 'back-to-bootrom' feature on new devices (e.g. the RK3368), this commit adds an implementation for AArch64. Signed-off-by: Philipp Tomsich Reviewed-by: Simon Glass Reviewed-by: Tom Rini

rockchip: Print a message when returning to the bootrom

2017-04-18T14:29:26Z

At present if the return to bootrom fails (e.g. because you are not using the Rockchip's bootrom's pointer table in MMC) then the board prints SPL message and hangs. Print a message first if we can, to help in understanding what happened when it hangs. Signed-off-by: Simon Glass Tested-by: Heiko Stuebner Acked-by: Heiko Stuebner

rockchip: add option to change method of loading u-boot

2016-07-26T02:44:18Z

If we would like to boot from SD card, we have to implement mmc driver in SPL stage, and get a slightly large SPL binary. Rockchip SoC's bootrom code has the ability to load spl and u-boot, then boot. If CONFIG_ROCKCHIP_SPL_BACK_TO_BROM is enabled, the spl will return to bootrom in board_init_f(), then bootrom loads u-boot binary. Loading sequence after rework: bootrom ==> spl ==> bootrom ==> u-boot Signed-off-by: Ziyuan Xu Acked-by: Simon Glass Fixed up spelling of U-Boot, boorom, opinion->option, Rochchip: Signed-off-by: Simon Glass