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Masahiro Yamadabb2ff9d2014-10-03 19:21:06 +09001/*
Masahiro Yamada663a23f2015-05-29 17:30:00 +09002 * Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamadabb2ff9d2014-10-03 19:21:06 +09003 *
4 * SPDX-License-Identifier: GPL-2.0+
5 */
6
7#include <common.h>
Masahiro Yamada663a23f2015-05-29 17:30:00 +09008#include <linux/io.h>
Masahiro Yamada95387e22015-02-27 02:26:44 +09009#include <mach/sbc-regs.h>
10#include <mach/sg-regs.h>
Masahiro Yamadabb2ff9d2014-10-03 19:21:06 +090011
12void sbc_init(void)
13{
Masahiro Yamadabb2ff9d2014-10-03 19:21:06 +090014 /*
15 * Only CS1 is connected to support card.
16 * BKSZ[1:0] should be set to "01".
17 */
18 writel(SBCTRL0_SAVEPIN_PERI_VALUE, SBCTRL10);
19 writel(SBCTRL1_SAVEPIN_PERI_VALUE, SBCTRL11);
20 writel(SBCTRL2_SAVEPIN_PERI_VALUE, SBCTRL12);
21 writel(SBCTRL4_SAVEPIN_PERI_VALUE, SBCTRL14);
22
Masahiro Yamadae6a91272014-12-06 00:03:19 +090023 if (boot_is_swapped()) {
Masahiro Yamadabb2ff9d2014-10-03 19:21:06 +090024 /*
25 * Boot Swap On: boot from external NOR/SRAM
26 * 0x02000000-0x03ffffff is a mirror of 0x00000000-0x01ffffff.
27 *
28 * 0x00000000-0x01efffff, 0x02000000-0x03efffff: memory bank
29 * 0x01f00000-0x01ffffff, 0x03f00000-0x03ffffff: peripherals
30 */
31 writel(0x0000bc01, SBBASE0);
Masahiro Yamadae6a91272014-12-06 00:03:19 +090032 } else {
33 /*
34 * Boot Swap Off: boot from mask ROM
35 * 0x00000000-0x01ffffff: mask ROM
Masahiro Yamada8ce9bdf2015-02-27 02:26:48 +090036 * 0x02000000-0x03efffff: memory bank (31MB)
37 * 0x03f00000-0x03ffffff: peripherals (1MB)
Masahiro Yamadae6a91272014-12-06 00:03:19 +090038 */
39 writel(0x0000be01, SBBASE0); /* dummy */
40 writel(0x0200be01, SBBASE1);
Masahiro Yamadabb2ff9d2014-10-03 19:21:06 +090041 }
Masahiro Yamadabb2ff9d2014-10-03 19:21:06 +090042}