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rockchip: update boot0 hook

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Rockchip SoCs only need boot0 hook at SPL, and the U-Boot proper do not
need it.

The very beginning of U-Boot proper is different between armv7 and armv8:
armv7 start with ARM_VECTORS while armv8 start with 'b reset'.

Here is the map of very beginning for all cases:
armv7 SPL: TAG(overwrite 'b 1f')+'b reset' + ARM_VECTORS
armv7 U-Boot: ARM_VECTORS
armv8 SPL: TAG(overwrite 'b 1f')+'b reset' + Reserved_iram(rk3399)
armv8 U-Boot: 'b reset'

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
This commit is contained in:
Kever Yang 2017-12-18 15:05:41 +08:00 committed by Philipp Tomsich
parent 81f53b0daf
commit 270288544e
1 changed files with 6 additions and 1 deletions
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7
arch/arm/include/asm/arch-rockchip/boot0.h
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@ -39,7 +39,12 @@
entry_counter:
.word 0
#endif
#if (defined(CONFIG_SPL_BUILD) || defined(CONFIG_ARM64))
/* U-Boot proper of armv7 do not need this */
b reset
#endif
#if !defined(CONFIG_ARM64)
/*
* For armv7, the addr '_start' will used as vector start address
@ -50,6 +55,6 @@ _start:
ARM_VECTORS
#endif
#if defined(CONFIG_ROCKCHIP_RK3399) && defined(CONFIG_SPL_BUILD)
#if defined(CONFIG_SPL_BUILD) && (CONFIG_ROCKCHIP_SPL_RESERVE_IRAM > 0)
.space CONFIG_ROCKCHIP_SPL_RESERVE_IRAM /* space for the ATF data */
#endif