| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* Bootloader to resume MIO A701 |
| * |
| * 2007-1-12 Robert Jarzmik |
| */ |
| |
| #include <linux/linkage.h> |
| #include <asm/assembler.h> |
| |
| /* |
| * Note: Yes, part of the following code is located into the .data section. |
| * This is to allow jumpaddr to be accessed with a relative load |
| * while we can't rely on any MMU translation. We could have put |
| * sleep_save_sp in the .text section as well, but some setups might |
| * insist on it to be truly read-only. |
| */ |
| .data |
| .align 2 |
| ENTRY(mioa701_bootstrap) |
| 0: |
| b 1f |
| ENTRY(mioa701_jumpaddr) |
| .word 0x40f00008 @ PSPR in no-MMU mode |
| 1: |
| mov r0, #0xa0000000 @ Don't suppose memory access works |
| orr r0, r0, #0x00200000 @ even if it's supposed to |
| orr r0, r0, #0x0000b000 |
| mov r1, #0 |
| str r1, [r0] @ Early disable resume for next boot |
| ldr r0, mioa701_jumpaddr @ (Murphy's Law) |
| ldr r0, [r0] |
| ret r0 |
| 2: |
| |
| ENTRY(mioa701_bootstrap_lg) |
| .data |
| .align 2 |
| .word 2b-0b |
