summaryrefslogtreecommitdiff
path: root/arch/arm/mach-meson/board-common.c
blob: bc4c92074cb2f9208a021525f84b51422a8f2b68 (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
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
// SPDX-License-Identifier: GPL-2.0+
/*
 * (C) Copyright 2016 Beniamino Galvani <b.galvani@gmail.com>
 */

#include <common.h>
#include <cpu_func.h>
#include <init.h>
#include <asm/arch/boot.h>
#include <env.h>
#include <linux/libfdt.h>
#include <linux/err.h>
#include <asm/arch/mem.h>
#include <asm/arch/sm.h>
#include <asm/armv8/mmu.h>
#include <asm/unaligned.h>
#include <efi_loader.h>
#include <u-boot/crc.h>

#if CONFIG_IS_ENABLED(FASTBOOT)
#include <asm/psci.h>
#include <fastboot.h>
#endif

DECLARE_GLOBAL_DATA_PTR;

__weak int board_init(void)
{
	return 0;
}

int dram_init(void)
{
	const fdt64_t *val;
	int offset;
	int len;

	offset = fdt_path_offset(gd->fdt_blob, "/memory");
	if (offset < 0)
		return -EINVAL;

	val = fdt_getprop(gd->fdt_blob, offset, "reg", &len);
	if (len < sizeof(*val) * 2)
		return -EINVAL;

	/* Use unaligned access since cache is still disabled */
	gd->ram_size = get_unaligned_be64(&val[1]);

	return 0;
}

__weak int meson_ft_board_setup(void *blob, bd_t *bd)
{
	return 0;
}

int ft_board_setup(void *blob, bd_t *bd)
{
	meson_init_reserved_memory(blob);

	return meson_ft_board_setup(blob, bd);
}

void meson_board_add_reserved_memory(void *fdt, u64 start, u64 size)
{
	int ret;

	ret = fdt_add_mem_rsv(fdt, start, size);
	if (ret)
		printf("Could not reserve zone @ 0x%llx\n", start);

	if (IS_ENABLED(CONFIG_EFI_LOADER)) {
		efi_add_memory_map(start,
				   ALIGN(size, EFI_PAGE_SIZE) >> EFI_PAGE_SHIFT,
				   EFI_RESERVED_MEMORY_TYPE, false);
	}
}

int meson_generate_serial_ethaddr(void)
{
	u8 mac_addr[ARP_HLEN];
	char serial[SM_SERIAL_SIZE];
	u32 sid;
	u16 sid16;

	if (!meson_sm_get_serial(serial, SM_SERIAL_SIZE)) {
		sid = crc32(0, (unsigned char *)serial, SM_SERIAL_SIZE);
		sid16 = crc16_ccitt(0, (unsigned char *)serial,	SM_SERIAL_SIZE);

		/* Ensure the NIC specific bytes of the mac are not all 0 */
		if ((sid & 0xffffff) == 0)
			sid |= 0x800000;

		/* Non OUI / registered MAC address */
		mac_addr[0] = ((sid16 >> 8) & 0xfc) | 0x02;
		mac_addr[1] = (sid16 >>  0) & 0xff;
		mac_addr[2] = (sid >> 24) & 0xff;
		mac_addr[3] = (sid >> 16) & 0xff;
		mac_addr[4] = (sid >>  8) & 0xff;
		mac_addr[5] = (sid >>  0) & 0xff;

		eth_env_set_enetaddr("ethaddr", mac_addr);
	} else
		return -EINVAL;

	return 0;
}

static void meson_set_boot_source(void)
{
	const char *source;

	switch (meson_get_boot_device()) {
	case BOOT_DEVICE_EMMC:
		source = "emmc";
		break;

	case BOOT_DEVICE_NAND:
		source = "nand";
		break;

	case BOOT_DEVICE_SPI:
		source = "spi";
		break;

	case BOOT_DEVICE_SD:
		source = "sd";
		break;

	case BOOT_DEVICE_USB:
		source = "usb";
		break;

	default:
		source = "unknown";
	}

	env_set("boot_source", source);
}

__weak int meson_board_late_init(void)
{
	return 0;
}

int board_late_init(void)
{
	meson_set_boot_source();

	return meson_board_late_init();
}

#if CONFIG_IS_ENABLED(FASTBOOT)
static unsigned int reboot_reason = REBOOT_REASON_NORMAL;

int fastboot_set_reboot_flag()
{
	reboot_reason = REBOOT_REASON_BOOTLOADER;

	printf("Using reboot reason: 0x%x\n", reboot_reason);

	return 0;
}

void reset_cpu(ulong addr)
{
	struct pt_regs regs;

	regs.regs[0] = ARM_PSCI_0_2_FN_SYSTEM_RESET;
	regs.regs[1] = reboot_reason;

	printf("Rebooting with reason: 0x%lx\n", regs.regs[1]);

	smc_call(&regs);

	while (1)
		;
}
#else
void reset_cpu(ulong addr)
{
	psci_system_reset();
}
#endif