2 * (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH
4 * SPDX-License-Identifier: GPL-2.0+
10 #include <dm/pinctrl.h>
11 #include <dm/uclass-internal.h>
12 #include <asm/setup.h>
13 #include <asm/arch/periph.h>
14 #include <power/regulator.h>
16 #include <u-boot/sha256.h>
18 DECLARE_GLOBAL_DATA_PTR;
25 * We need to call into regulators_enable_boot_on() again, as the call
26 * during SPL may have not included all regulators.
28 ret = regulators_enable_boot_on(false);
30 debug("%s: Cannot enable boot on regulator\n", __func__);
35 void spl_board_init(void)
37 preloader_console_init();
40 static void setup_macaddr(void)
42 #if CONFIG_IS_ENABLED(CMD_NET)
44 const char *cpuid = env_get("cpuid#");
45 u8 hash[SHA256_SUM_LEN];
46 int size = sizeof(hash);
49 /* Only generate a MAC address, if none is set in the environment */
50 if (env_get("ethaddr"))
54 debug("%s: could not retrieve 'cpuid#'\n", __func__);
58 ret = hash_block("sha256", (void *)cpuid, strlen(cpuid), hash, &size);
60 debug("%s: failed to calculate SHA256\n", __func__);
64 /* Copy 6 bytes of the hash to base the MAC address on */
65 memcpy(mac_addr, hash, 6);
67 /* Make this a valid MAC address and set it */
68 mac_addr[0] &= 0xfe; /* clear multicast bit */
69 mac_addr[0] |= 0x02; /* set local assignment bit (IEEE802) */
70 eth_env_set_enetaddr("ethaddr", mac_addr);
74 static void setup_serial(void)
76 #if CONFIG_IS_ENABLED(ROCKCHIP_EFUSE)
77 const u32 cpuid_offset = 0x7;
78 const u32 cpuid_length = 0x10;
82 u8 cpuid[cpuid_length];
83 u8 low[cpuid_length/2], high[cpuid_length/2];
84 char cpuid_str[cpuid_length * 2 + 1];
86 char serialno_str[17];
88 /* retrieve the device */
89 ret = uclass_get_device_by_driver(UCLASS_MISC,
90 DM_GET_DRIVER(rockchip_efuse), &dev);
92 debug("%s: could not find efuse device\n", __func__);
96 /* read the cpu_id range from the efuses */
97 ret = misc_read(dev, cpuid_offset, &cpuid, sizeof(cpuid));
99 debug("%s: reading cpuid from the efuses failed\n",
104 memset(cpuid_str, 0, sizeof(cpuid_str));
105 for (i = 0; i < 16; i++)
106 sprintf(&cpuid_str[i * 2], "%02x", cpuid[i]);
108 debug("cpuid: %s\n", cpuid_str);
111 * Mix the cpuid bytes using the same rules as in
112 * ${linux}/drivers/soc/rockchip/rockchip-cpuinfo.c
114 for (i = 0; i < 8; i++) {
115 low[i] = cpuid[1 + (i << 1)];
116 high[i] = cpuid[i << 1];
119 serialno = crc32_no_comp(0, low, 8);
120 serialno |= (u64)crc32_no_comp(serialno, high, 8) << 32;
121 snprintf(serialno_str, sizeof(serialno_str), "%llx", serialno);
123 env_set("cpuid#", cpuid_str);
124 env_set("serial#", serialno_str);
128 int misc_init_r(void)
136 #ifdef CONFIG_SERIAL_TAG
137 void get_board_serial(struct tag_serialnr *serialnr)
142 serial_string = env_get("serial#");
145 serial = simple_strtoull(serial_string, NULL, 16);
147 serialnr->high = (u32)(serial >> 32);
148 serialnr->low = (u32)(serial & 0xffffffff);