xref: /netbsd-src/sys/stand/efiboot/bootarm/efibootarm.c (revision 9c5f9f54b6eccbb951edfbc060bd4d6dc08f64c9)
1 /* $NetBSD: efibootarm.c,v 1.5 2024/09/18 19:43:29 skrll Exp $ */
2 
3 /*-
4  * Copyright (c) 2019 Jared McNeill <jmcneill@invisible.ca>
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #include "../efiboot.h"
30 #include "../efifdt.h"
31 
32 #include <sys/bootblock.h>
33 
34 #include <loadfile.h>
35 
36 /* cache.S */
37 void armv7_dcache_wbinv_range(vaddr_t, vsize_t);
38 void armv7_dcache_wbinv_all(void);
39 void armv7_icache_inv_all(void);
40 void armv7_exec_kernel(register_t, register_t);
41 
42 void
43 efi_dcache_flush(u_long start, u_long size)
44 {
45 	armv7_dcache_wbinv_range(start, size);
46 }
47 
48 void
49 efi_boot_kernel(u_long marks[MARK_MAX])
50 {
51 	armv7_dcache_wbinv_all();
52 	armv7_icache_inv_all();
53 
54 	armv7_exec_kernel((register_t)marks[MARK_ENTRY], (register_t)efi_fdt_data());
55 }
56 
57 void
58 efi_md_show(void)
59 {
60 }
61 
62 int
63 efi_md_prepare_boot(const char *fname, const char *args, u_long *marks)
64 {
65         return 0;
66 }
67