diff options
Diffstat (limited to 'arch/arm/include/asm/arch-sunxi/boot0.h')
| -rw-r--r-- | arch/arm/include/asm/arch-sunxi/boot0.h | 37 |
1 files changed, 31 insertions, 6 deletions
diff --git a/arch/arm/include/asm/arch-sunxi/boot0.h b/arch/arm/include/asm/arch-sunxi/boot0.h index ea5675eb9e..9c6d82dda1 100644 --- a/arch/arm/include/asm/arch-sunxi/boot0.h +++ b/arch/arm/include/asm/arch-sunxi/boot0.h @@ -4,11 +4,36 @@ * SPDX-License-Identifier: GPL-2.0+ */ -#ifndef __BOOT0_H -#define __BOOT0_H - +#if defined(CONFIG_RESERVE_ALLWINNER_BOOT0_HEADER) && !defined(CONFIG_SPL_BUILD) /* reserve space for BOOT0 header information */ -#define ARM_SOC_BOOT0_HOOK \ + b reset .space 1532 - -#endif /* __BOOT0_H */ +#elif defined(CONFIG_ARM_BOOT_HOOK_RMR) +/* + * Switch into AArch64 if needed. + * Refer to arch/arm/mach-sunxi/rmr_switch.S for the original source. + */ + tst x0, x0 // this is "b #0x84" in ARM + b reset + .space 0x7c + .word 0xe59f1024 // ldr r1, [pc, #36] ; 0x170000a0 + .word 0xe59f0024 // ldr r0, [pc, #36] ; CONFIG_*_TEXT_BASE + .word 0xe5810000 // str r0, [r1] + .word 0xf57ff04f // dsb sy + .word 0xf57ff06f // isb sy + .word 0xee1c0f50 // mrc 15, 0, r0, cr12, cr0, {2} ; RMR + .word 0xe3800003 // orr r0, r0, #3 + .word 0xee0c0f50 // mcr 15, 0, r0, cr12, cr0, {2} ; RMR + .word 0xf57ff06f // isb sy + .word 0xe320f003 // wfi + .word 0xeafffffd // b @wfi + .word 0x017000a0 // writeable RVBAR mapping address +#ifdef CONFIG_SPL_BUILD + .word CONFIG_SPL_TEXT_BASE +#else + .word CONFIG_SYS_TEXT_BASE +#endif +#else +/* normal execution */ + b reset +#endif |