summaryrefslogtreecommitdiff
path: root/arch/arm/mach-rockchip/rk3188-board.c
blob: 16f38559afff430d6135419890d1c09b20d0e176 (plain)
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
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
/*
 * (C) Copyright 2015 Google, Inc
 *
 * SPDX-License-Identifier:     GPL-2.0+
 */

#include <common.h>
#include <clk.h>
#include <dm.h>
#include <ram.h>
#include <syscon.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/periph.h>
#include <asm/arch/pmu_rk3288.h>
#include <asm/arch/boot_mode.h>
#include <asm/gpio.h>
#include <dm/pinctrl.h>

DECLARE_GLOBAL_DATA_PTR;

int board_init(void)
{
#if defined(CONFIG_ROCKCHIP_SPL_BACK_TO_BROM)
	struct udevice *pinctrl;
	int ret;

	/*
	 * We need to implement sdcard iomux here for the further
	 * initialization, otherwise, it'll hit sdcard command sending
	 * timeout exception.
	 */
	ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
	if (ret) {
		debug("%s: Cannot find pinctrl device\n", __func__);
		goto err;
	}
	ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_SDCARD);
	if (ret) {
		debug("%s: Failed to set up SD card\n", __func__);
		goto err;
	}

	return 0;
err:
	printf("board_init: Error %d\n", ret);

	/* No way to report error here */
	hang();

	return -1;
#else
	return 0;
#endif
}

int dram_init(void)
{
	/* FIXME: read back ram size from sys_reg2 */
	gd->ram_size = 0x40000000;

	return 0;
}

#ifndef CONFIG_SYS_DCACHE_OFF
void enable_caches(void)
{
	/* Enable D-cache. I-cache is already enabled in start.S */
	dcache_enable();
}
#endif