diff options
Diffstat (limited to 'arch/arm/include/asm/arch-imx8/boot0.h')
| -rw-r--r-- | arch/arm/include/asm/arch-imx8/boot0.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-imx8/boot0.h b/arch/arm/include/asm/arch-imx8/boot0.h new file mode 100644 index 0000000..5ce781a --- /dev/null +++ b/arch/arm/include/asm/arch-imx8/boot0.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright 2019 NXP + */ + +#if defined(CONFIG_SPL_BUILD) + /* + * We use absolute address not PC relative address to jump. + * When running SPL on iMX8, the A core starts at address 0, a alias to OCRAM 0x100000, + * our linker address for SPL is from 0x100000. So using absolute address can jump to + * the OCRAM address from the alias. + * The alias only map first 96KB of OCRAM, so this require the SPL size can't beyond 96KB. + * But when using SPL DM, the size increase significantly and may exceed 96KB. + * That's why we have to jump to OCRAM. + */ + + ldr x0, =reset + br x0 +#else + b reset +#endif |