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 <init.h>
8 #include <asm/arch/boot.h>
9 #include <env.h>
10 #include <linux/libfdt.h>
11 #include <linux/err.h>
12 #include <asm/arch/mem.h>
13 #include <asm/arch/sm.h>
14 #include <asm/armv8/mmu.h>
15 #include <asm/unaligned.h>
16 #include <efi_loader.h>
17 #include <u-boot/crc.h>
18
19 #if CONFIG_IS_ENABLED(FASTBOOT)
20 #include <asm/psci.h>
21 #include <fastboot.h>
22 #endif
23
24 DECLARE_GLOBAL_DATA_PTR;
25
board_init(void)26 __weak int board_init(void)
27 {
28 return 0;
29 }
30
dram_init(void)31 int dram_init(void)
32 {
33 const fdt64_t *val;
34 int offset;
35 int len;
36
37 offset = fdt_path_offset(gd->fdt_blob, "/memory");
38 if (offset < 0)
39 return -EINVAL;
40
41 val = fdt_getprop(gd->fdt_blob, offset, "reg", &len);
42 if (len < sizeof(*val) * 2)
43 return -EINVAL;
44
45 /* Use unaligned access since cache is still disabled */
46 gd->ram_size = get_unaligned_be64(&val[1]);
47
48 return 0;
49 }
50
meson_ft_board_setup(void * blob,bd_t * bd)51 __weak int meson_ft_board_setup(void *blob, bd_t *bd)
52 {
53 return 0;
54 }
55
ft_board_setup(void * blob,bd_t * bd)56 int ft_board_setup(void *blob, bd_t *bd)
57 {
58 meson_init_reserved_memory(blob);
59
60 return meson_ft_board_setup(blob, bd);
61 }
62
meson_board_add_reserved_memory(void * fdt,u64 start,u64 size)63 void meson_board_add_reserved_memory(void *fdt, u64 start, u64 size)
64 {
65 int ret;
66
67 ret = fdt_add_mem_rsv(fdt, start, size);
68 if (ret)
69 printf("Could not reserve zone @ 0x%llx\n", start);
70
71 if (IS_ENABLED(CONFIG_EFI_LOADER)) {
72 efi_add_memory_map(start,
73 ALIGN(size, EFI_PAGE_SIZE) >> EFI_PAGE_SHIFT,
74 EFI_RESERVED_MEMORY_TYPE, false);
75 }
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
152 #if CONFIG_IS_ENABLED(FASTBOOT)
153 static unsigned int reboot_reason = REBOOT_REASON_NORMAL;
154
fastboot_set_reboot_flag()155 int fastboot_set_reboot_flag()
156 {
157 reboot_reason = REBOOT_REASON_BOOTLOADER;
158
159 printf("Using reboot reason: 0x%x\n", reboot_reason);
160
161 return 0;
162 }
163
reset_cpu(ulong addr)164 void reset_cpu(ulong addr)
165 {
166 struct pt_regs regs;
167
168 regs.regs[0] = ARM_PSCI_0_2_FN_SYSTEM_RESET;
169 regs.regs[1] = reboot_reason;
170
171 printf("Rebooting with reason: 0x%lx\n", regs.regs[1]);
172
173 smc_call(®s);
174
175 while (1)
176 ;
177 }
178 #else
reset_cpu(ulong addr)179 void reset_cpu(ulong addr)
180 {
181 psci_system_reset();
182 }
183 #endif
184