diff options
Diffstat (limited to 'src/arch/arm/boot_linux.S')
| -rw-r--r-- | src/arch/arm/boot_linux.S | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/arch/arm/boot_linux.S b/src/arch/arm/boot_linux.S new file mode 100644 index 0000000000..e3985eae56 --- /dev/null +++ b/src/arch/arm/boot_linux.S @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <arch/asm.h> + +/* Required to jump to kernel in ARM state */ +.arm +/* void boot_linux(void *kernel_ptr, void *fdt_ptr); */ +ENTRY(boot_linux) + /* Save kernel ptr */ + mov r3, r0 + /* Set R2 = fdt */ + mov r2, r1 + /* Set R0 = 0x00000000 as expected by Linux ABI */ + mov r0, #0 + /* Set R1 = 0xffffffff as expected by Linux ABI */ + mov r1, #-1 + /* Linux ABI expects SVC mode (0x13) with IRQ(7) and FIQ(6) disabled. */ + msr cpsr_cxf, #0xd3 + /* Jump to kernel */ + mov pc, r3 +ENDPROC(boot_linux) |