2 * Configuration settings for the Allwinner A64 (sun50i) CPU
4 * SPDX-License-Identifier: GPL-2.0+
7 #if defined(CONFIG_RESERVE_ALLWINNER_BOOT0_HEADER) && !defined(CONFIG_SPL_BUILD)
8 /* reserve space for BOOT0 header information */
11 #elif defined(CONFIG_ARM_BOOT_HOOK_RMR)
13 * Switch into AArch64 if needed.
14 * Refer to arch/arm/mach-sunxi/rmr_switch.S for the original source.
16 tst x0, x0 // this is "b #0x84" in ARM
19 .word 0xe59f1024 // ldr r1, [pc, #36] ; 0x170000a0
20 .word 0xe59f0024 // ldr r0, [pc, #36] ; CONFIG_*_TEXT_BASE
21 .word 0xe5810000 // str r0, [r1]
22 .word 0xf57ff04f // dsb sy
23 .word 0xf57ff06f // isb sy
24 .word 0xee1c0f50 // mrc 15, 0, r0, cr12, cr0, {2} ; RMR
25 .word 0xe3800003 // orr r0, r0, #3
26 .word 0xee0c0f50 // mcr 15, 0, r0, cr12, cr0, {2} ; RMR
27 .word 0xf57ff06f // isb sy
28 .word 0xe320f003 // wfi
29 .word 0xeafffffd // b @wfi
30 .word 0x017000a0 // writeable RVBAR mapping address
31 #ifdef CONFIG_SPL_BUILD
32 .word CONFIG_SPL_TEXT_BASE
34 .word CONFIG_SYS_TEXT_BASE
37 /* normal execution */