diff options
| author | Mark Kettenis <kettenis@openbsd.org> | 2021-10-23 16:58:03 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2021-10-31 08:46:44 -0400 |
| commit | 003b657edcdc7ee96b7df277a16480129a5260a7 (patch) | |
| tree | 38c454ce830b7eedd8bf65bc260d6cf6e863b2e7 /arch/arm/mach-apple/lowlevel_init.S | |
| parent | fb5746243707d6b84dea02490a86868c3d7f534d (diff) | |
| download | u-boot-003b657edcdc7ee96b7df277a16480129a5260a7.tar.gz | |
arm: apple: Add initial support for Apple's M1 SoC
Add support for Apple's M1 SoC that is used in "Apple Silicon"
Macs. This builds a basic U-Boot that can be used as a payload
for the m1n1 boot loader being developed by the Asahi Linux
project.
Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Add MAINTAINERS entry]
Diffstat (limited to 'arch/arm/mach-apple/lowlevel_init.S')
| -rw-r--r-- | arch/arm/mach-apple/lowlevel_init.S | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm/mach-apple/lowlevel_init.S b/arch/arm/mach-apple/lowlevel_init.S new file mode 100644 index 0000000000..e1c0d91cef --- /dev/null +++ b/arch/arm/mach-apple/lowlevel_init.S @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * (C) Copyright 2021 Mark Kettenis <kettenis@openbsd.org> + */ + +.align 8 +.global fw_dtb_pointer +fw_dtb_pointer: + .quad 0 + +.global save_boot_params +save_boot_params: + /* Stash DTB pointer passed by m1n1 */ + adr x1, fw_dtb_pointer + str x0, [x1] + + b save_boot_params_ret |