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
rk_board_init(void)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
setup_macaddr(void)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
setup_serial(void)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
misc_init_r(void)166 int misc_init_r(void)
167 {
168 setup_serial();
169 setup_macaddr();
170
171 return 0;
172 }
173
174 #ifdef CONFIG_SERIAL_TAG
get_board_serial(struct tag_serialnr * serialnr)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
usb_gadget_handle_interrupts(void)200 int usb_gadget_handle_interrupts(void)
201 {
202 dwc3_uboot_handle_interrupt(0);
203 return 0;
204 }
205
board_usb_init(int index,enum usb_init_type init)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