1 /* 2 * (C) Copyright 2016 Rockchip Electronics Co., Ltd 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <dm.h> 9 #include <misc.h> 10 #include <ram.h> 11 #include <dm/pinctrl.h> 12 #include <dm/uclass-internal.h> 13 #include <asm/setup.h> 14 #include <asm/arch/periph.h> 15 #include <power/regulator.h> 16 #include <u-boot/sha256.h> 17 #include <usb.h> 18 #include <dwc3-uboot.h> 19 #include <spl.h> 20 21 DECLARE_GLOBAL_DATA_PTR; 22 23 #define RK3399_CPUID_OFF 0x7 24 #define RK3399_CPUID_LEN 0x10 25 26 int rk_board_init(void) 27 { 28 struct udevice *pinctrl, *regulator; 29 int ret; 30 31 /* 32 * The PWM does not have decicated interrupt number in dts and can 33 * not get periph_id by pinctrl framework, so let's init them here. 34 * The PWM2 and PWM3 are for pwm regulators. 35 */ 36 ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl); 37 if (ret) { 38 debug("%s: Cannot find pinctrl device\n", __func__); 39 goto out; 40 } 41 42 /* Enable pwm0 for panel backlight */ 43 ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM0); 44 if (ret) { 45 debug("%s PWM0 pinctrl init fail! (ret=%d)\n", __func__, ret); 46 goto out; 47 } 48 49 ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM2); 50 if (ret) { 51 debug("%s PWM2 pinctrl init fail!\n", __func__); 52 goto out; 53 } 54 55 ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM3); 56 if (ret) { 57 debug("%s PWM3 pinctrl init fail!\n", __func__); 58 goto out; 59 } 60 61 ret = regulator_get_by_platname("vcc5v0_host", ®ulator); 62 if (ret) { 63 debug("%s vcc5v0_host init fail! ret %d\n", __func__, ret); 64 goto out; 65 } 66 67 ret = regulator_set_enable(regulator, true); 68 if (ret) { 69 debug("%s vcc5v0-host-en set fail!\n", __func__); 70 goto out; 71 } 72 73 out: 74 return 0; 75 } 76 77 static void setup_macaddr(void) 78 { 79 #if CONFIG_IS_ENABLED(CMD_NET) 80 int ret; 81 const char *cpuid = env_get("cpuid#"); 82 u8 hash[SHA256_SUM_LEN]; 83 int size = sizeof(hash); 84 u8 mac_addr[6]; 85 86 /* Only generate a MAC address, if none is set in the environment */ 87 if (env_get("ethaddr")) 88 return; 89 90 if (!cpuid) { 91 debug("%s: could not retrieve 'cpuid#'\n", __func__); 92 return; 93 } 94 95 ret = hash_block("sha256", (void *)cpuid, strlen(cpuid), hash, &size); 96 if (ret) { 97 debug("%s: failed to calculate SHA256\n", __func__); 98 return; 99 } 100 101 /* Copy 6 bytes of the hash to base the MAC address on */ 102 memcpy(mac_addr, hash, 6); 103 104 /* Make this a valid MAC address and set it */ 105 mac_addr[0] &= 0xfe; /* clear multicast bit */ 106 mac_addr[0] |= 0x02; /* set local assignment bit (IEEE802) */ 107 eth_env_set_enetaddr("ethaddr", mac_addr); 108 #endif 109 110 return; 111 } 112 113 static void setup_serial(void) 114 { 115 #if CONFIG_IS_ENABLED(ROCKCHIP_EFUSE) 116 struct udevice *dev; 117 int ret, i; 118 u8 cpuid[RK3399_CPUID_LEN]; 119 u8 low[RK3399_CPUID_LEN/2], high[RK3399_CPUID_LEN/2]; 120 char cpuid_str[RK3399_CPUID_LEN * 2 + 1]; 121 u64 serialno; 122 char serialno_str[16]; 123 124 /* retrieve the device */ 125 ret = uclass_get_device_by_driver(UCLASS_MISC, 126 DM_GET_DRIVER(rockchip_efuse), &dev); 127 if (ret) { 128 debug("%s: could not find efuse device\n", __func__); 129 return; 130 } 131 132 /* read the cpu_id range from the efuses */ 133 ret = misc_read(dev, RK3399_CPUID_OFF, &cpuid, sizeof(cpuid)); 134 if (ret) { 135 debug("%s: reading cpuid from the efuses failed\n", 136 __func__); 137 return; 138 } 139 140 memset(cpuid_str, 0, sizeof(cpuid_str)); 141 for (i = 0; i < 16; i++) 142 sprintf(&cpuid_str[i * 2], "%02x", cpuid[i]); 143 144 debug("cpuid: %s\n", cpuid_str); 145 146 /* 147 * Mix the cpuid bytes using the same rules as in 148 * ${linux}/drivers/soc/rockchip/rockchip-cpuinfo.c 149 */ 150 for (i = 0; i < 8; i++) { 151 low[i] = cpuid[1 + (i << 1)]; 152 high[i] = cpuid[i << 1]; 153 } 154 155 serialno = crc32_no_comp(0, low, 8); 156 serialno |= (u64)crc32_no_comp(serialno, high, 8) << 32; 157 snprintf(serialno_str, sizeof(serialno_str), "%llx", serialno); 158 159 env_set("cpuid#", cpuid_str); 160 env_set("serial#", serialno_str); 161 #endif 162 163 return; 164 } 165 166 int misc_init_r(void) 167 { 168 setup_serial(); 169 setup_macaddr(); 170 171 return 0; 172 } 173 174 #ifdef CONFIG_SERIAL_TAG 175 void get_board_serial(struct tag_serialnr *serialnr) 176 { 177 char *serial_string; 178 u64 serial = 0; 179 180 serial_string = env_get("serial#"); 181 182 if (serial_string) 183 serial = simple_strtoull(serial_string, NULL, 16); 184 185 serialnr->high = (u32)(serial >> 32); 186 serialnr->low = (u32)(serial & 0xffffffff); 187 } 188 #endif 189 190 #ifdef CONFIG_USB_DWC3 191 static struct dwc3_device dwc3_device_data = { 192 .maximum_speed = USB_SPEED_HIGH, 193 .base = 0xfe800000, 194 .dr_mode = USB_DR_MODE_PERIPHERAL, 195 .index = 0, 196 .dis_u2_susphy_quirk = 1, 197 .usb2_phyif_utmi_width = 16, 198 }; 199 200 int usb_gadget_handle_interrupts(void) 201 { 202 dwc3_uboot_handle_interrupt(0); 203 return 0; 204 } 205 206 int board_usb_init(int index, enum usb_init_type init) 207 { 208 return dwc3_uboot_init(&dwc3_device_data); 209 } 210 #endif 211