1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2016 Beniamino Galvani <b.galvani@gmail.com>
4 */
5
6 #include <common.h>
7 #include <cpu_func.h>
8 #include <fastboot.h>
9 #include <init.h>
10 #include <net.h>
11 #include <asm/arch/boot.h>
12 #include <env.h>
13 #include <asm/cache.h>
14 #include <asm/global_data.h>
15 #include <asm/ptrace.h>
16 #include <linux/libfdt.h>
17 #include <linux/err.h>
18 #include <asm/arch/mem.h>
19 #include <asm/arch/sm.h>
20 #include <asm/armv8/mmu.h>
21 #include <asm/unaligned.h>
22 #include <efi_loader.h>
23 #include <u-boot/crc.h>
24
25 #include <asm/psci.h>
26
27 DECLARE_GLOBAL_DATA_PTR;
28
board_init(void)29 __weak int board_init(void)
30 {
31 return 0;
32 }
33
dram_init(void)34 int dram_init(void)
35 {
36 const fdt64_t *val;
37 int offset;
38 int len;
39
40 offset = fdt_path_offset(gd->fdt_blob, "/memory");
41 if (offset < 0)
42 return -EINVAL;
43
44 val = fdt_getprop(gd->fdt_blob, offset, "reg", &len);
45 if (len < sizeof(*val) * 2)
46 return -EINVAL;
47
48 /* Use unaligned access since cache is still disabled */
49 gd->ram_size = get_unaligned_be64(&val[1]);
50
51 return 0;
52 }
53
meson_ft_board_setup(void * blob,struct bd_info * bd)54 __weak int meson_ft_board_setup(void *blob, struct bd_info *bd)
55 {
56 return 0;
57 }
58
ft_board_setup(void * blob,struct bd_info * bd)59 int ft_board_setup(void *blob, struct bd_info *bd)
60 {
61 meson_init_reserved_memory(blob);
62
63 return meson_ft_board_setup(blob, bd);
64 }
65
meson_board_add_reserved_memory(void * fdt,u64 start,u64 size)66 void meson_board_add_reserved_memory(void *fdt, u64 start, u64 size)
67 {
68 int ret;
69
70 ret = fdt_add_mem_rsv(fdt, start, size);
71 if (ret)
72 printf("Could not reserve zone @ 0x%llx\n", start);
73
74 if (IS_ENABLED(CONFIG_EFI_LOADER))
75 efi_add_memory_map(start, size, EFI_RESERVED_MEMORY_TYPE);
76 }
77
meson_generate_serial_ethaddr(void)78 int meson_generate_serial_ethaddr(void)
79 {
80 u8 mac_addr[ARP_HLEN];
81 char serial[SM_SERIAL_SIZE];
82 u32 sid;
83 u16 sid16;
84
85 if (!meson_sm_get_serial(serial, SM_SERIAL_SIZE)) {
86 sid = crc32(0, (unsigned char *)serial, SM_SERIAL_SIZE);
87 sid16 = crc16_ccitt(0, (unsigned char *)serial, SM_SERIAL_SIZE);
88
89 /* Ensure the NIC specific bytes of the mac are not all 0 */
90 if ((sid & 0xffffff) == 0)
91 sid |= 0x800000;
92
93 /* Non OUI / registered MAC address */
94 mac_addr[0] = ((sid16 >> 8) & 0xfc) | 0x02;
95 mac_addr[1] = (sid16 >> 0) & 0xff;
96 mac_addr[2] = (sid >> 24) & 0xff;
97 mac_addr[3] = (sid >> 16) & 0xff;
98 mac_addr[4] = (sid >> 8) & 0xff;
99 mac_addr[5] = (sid >> 0) & 0xff;
100
101 eth_env_set_enetaddr("ethaddr", mac_addr);
102 } else
103 return -EINVAL;
104
105 return 0;
106 }
107
meson_set_boot_source(void)108 static void meson_set_boot_source(void)
109 {
110 const char *source;
111
112 switch (meson_get_boot_device()) {
113 case BOOT_DEVICE_EMMC:
114 source = "emmc";
115 break;
116
117 case BOOT_DEVICE_NAND:
118 source = "nand";
119 break;
120
121 case BOOT_DEVICE_SPI:
122 source = "spi";
123 break;
124
125 case BOOT_DEVICE_SD:
126 source = "sd";
127 break;
128
129 case BOOT_DEVICE_USB:
130 source = "usb";
131 break;
132
133 default:
134 source = "unknown";
135 }
136
137 env_set("boot_source", source);
138 }
139
meson_board_late_init(void)140 __weak int meson_board_late_init(void)
141 {
142 return 0;
143 }
144
board_late_init(void)145 int board_late_init(void)
146 {
147 meson_set_boot_source();
148
149 return meson_board_late_init();
150 }
151
reset_cpu(void)152 void reset_cpu(void)
153 {
154 psci_system_reset();
155 }
156