xref: /openbmc/linux/arch/csky/kernel/head.S (revision fb574682)
1/* SPDX-License-Identifier: GPL-2.0 */
2
3#include <linux/linkage.h>
4#include <linux/init.h>
5#include <asm/page.h>
6#include <abi/entry.h>
7
8__HEAD
9ENTRY(_start)
10	SETUP_MMU
11
12	/* set stack point */
13	lrw     r6, init_thread_union + THREAD_SIZE
14	mov	sp, r6
15
16	jmpi	csky_start
17END(_start)
18
19#ifdef CONFIG_SMP
20.align 10
21ENTRY(_start_smp_secondary)
22	SETUP_MMU
23
24	/* copy msa1 from CPU0 */
25	lrw     r6, secondary_msa1
26	ld.w	r6, (r6, 0)
27	mtcr	r6, cr<31, 15>
28
29	/* set stack point */
30	lrw     r6, secondary_stack
31	ld.w	r6, (r6, 0)
32	mov	sp, r6
33
34	jmpi	csky_start_secondary
35END(_start_smp_secondary)
36#endif
37