Files
opensbi/blob/fw_payload.S
Anup Patel 9e8ff05cb6 Initial commit.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-11 19:24:06 +05:30

47 lines
856 B
ArmAsm

/*
* Copyright (c) 2018 Western Digital Corporation or its affiliates.
*
* Authors:
* Anup Patel <anup.patel@wdc.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "fw_common.S"
.align 3
.section .entry, "ax", %progbits
.global fw_next_arg1
fw_next_arg1:
/* We return FDT destinetion address in 'a0' */
#ifdef FW_PAYLOAD_FDT_OFFSET
/* a0 = destinetion FDT start address */
la a0, payload_bin
li a1, FW_PAYLOAD_FDT_OFFSET
add a0, a0, a1
#else
add a0, zero, zero
#endif
ret
.align 3
.section .entry, "ax", %progbits
.global fw_next_addr
fw_next_addr:
/* We return next address in 'a0' */
la a0, payload_bin
ret
#define str(s) #s
#define stringify(s) str(s)
.section .payload, "ax", %progbits
.globl payload_bin
payload_bin:
#ifndef FW_PAYLOAD_PATH
wfi
j payload_bin
#else
.incbin stringify(FW_PAYLOAD_PATH)
#endif