| Ye Li | 97b4165 | 2019-07-12 09:33:52 +0000 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
| 2 | /* |
| 3 | * Copyright 2019 NXP |
| 4 | */ |
| 5 | |
| Simon Glass | 85ed77d | 2024-09-29 19:49:46 -0600 | [diff] [blame] | 6 | #if defined(CONFIG_XPL_BUILD) |
| Ye Li | 97b4165 | 2019-07-12 09:33:52 +0000 | [diff] [blame] | 7 | /* |
| 8 | * We use absolute address not PC relative address to jump. |
| 9 | * When running SPL on iMX8, the A core starts at address 0, a alias to OCRAM 0x100000, |
| 10 | * our linker address for SPL is from 0x100000. So using absolute address can jump to |
| 11 | * the OCRAM address from the alias. |
| 12 | * The alias only map first 96KB of OCRAM, so this require the SPL size can't beyond 96KB. |
| 13 | * But when using SPL DM, the size increase significantly and may exceed 96KB. |
| 14 | * That's why we have to jump to OCRAM. |
| 15 | */ |
| 16 | |
| 17 | ldr x0, =reset |
| 18 | br x0 |
| 19 | #else |
| 20 | b reset |
| 21 | #endif |