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