1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
/*
* Copyright (c) 2018 Western Digital Corporation or its affiliates.
*
* Authors:
* Anup Patel <anup.patel@wdc.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "fw_base.S"
.align 3
.section .entry, "ax", %progbits
.global fw_prev_arg1
fw_prev_arg1:
/* We return previous arg1 in 'a0' */
add a0, zero, zero
ret
.align 3
.section .entry, "ax", %progbits
.global fw_next_arg1
fw_next_arg1:
/* We return next arg1 in 'a0' */
#ifdef FW_JUMP_FDT_ADDR
li a0, FW_JUMP_FDT_ADDR
#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, _jump_addr
REG_L a0, (a0)
ret
#ifndef FW_JUMP_ADDR
#error "Must define FW_JUMP_ADDR"
#endif
.align 3
.section .entry, "ax", %progbits
_jump_addr:
RISCV_PTR FW_JUMP_ADDR
|
