/*
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* (C) Copyright 2016 Rockchip Electronics Co., Ltd
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <dm.h>
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#include <misc.h>
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#include <ram.h>
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#include <dm/pinctrl.h>
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#include <dm/uclass-internal.h>
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#include <asm/setup.h>
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#include <asm/arch/periph.h>
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#include <power/regulator.h>
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#include <u-boot/sha256.h>
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#include <usb.h>
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#include <dwc3-uboot.h>
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#include <spl.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define RK3399_CPUID_OFF 0x7
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#define RK3399_CPUID_LEN 0x10
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int rk_board_init(void)
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{
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struct udevice *pinctrl, *regulator;
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int ret;
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/*
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* The PWM does not have decicated interrupt number in dts and can
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* not get periph_id by pinctrl framework, so let's init them here.
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* The PWM2 and PWM3 are for pwm regulators.
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*/
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ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
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if (ret) {
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debug("%s: Cannot find pinctrl device\n", __func__);
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goto out;
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}
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/* Enable pwm0 for panel backlight */
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ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM0);
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if (ret) {
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debug("%s PWM0 pinctrl init fail! (ret=%d)\n", __func__, ret);
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goto out;
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}
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ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM2);
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if (ret) {
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debug("%s PWM2 pinctrl init fail!\n", __func__);
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goto out;
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}
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ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM3);
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if (ret) {
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debug("%s PWM3 pinctrl init fail!\n", __func__);
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goto out;
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}
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ret = regulator_get_by_platname("vcc5v0_host", ®ulator);
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if (ret) {
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debug("%s vcc5v0_host init fail! ret %d\n", __func__, ret);
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goto out;
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}
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ret = regulator_set_enable(regulator, true);
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if (ret) {
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debug("%s vcc5v0-host-en set fail!\n", __func__);
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goto out;
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}
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out:
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return 0;
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}
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static void setup_macaddr(void)
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{
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#if CONFIG_IS_ENABLED(CMD_NET)
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int ret;
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const char *cpuid = env_get("cpuid#");
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u8 hash[SHA256_SUM_LEN];
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int size = sizeof(hash);
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u8 mac_addr[6];
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/* Only generate a MAC address, if none is set in the environment */
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if (env_get("ethaddr"))
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return;
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if (!cpuid) {
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debug("%s: could not retrieve 'cpuid#'\n", __func__);
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return;
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}
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ret = hash_block("sha256", (void *)cpuid, strlen(cpuid), hash, &size);
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if (ret) {
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debug("%s: failed to calculate SHA256\n", __func__);
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return;
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}
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/* Copy 6 bytes of the hash to base the MAC address on */
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memcpy(mac_addr, hash, 6);
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/* Make this a valid MAC address and set it */
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mac_addr[0] &= 0xfe; /* clear multicast bit */
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mac_addr[0] |= 0x02; /* set local assignment bit (IEEE802) */
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eth_env_set_enetaddr("ethaddr", mac_addr);
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#endif
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return;
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}
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static void setup_serial(void)
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{
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#if CONFIG_IS_ENABLED(ROCKCHIP_EFUSE)
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struct udevice *dev;
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int ret, i;
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u8 cpuid[RK3399_CPUID_LEN];
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u8 low[RK3399_CPUID_LEN/2], high[RK3399_CPUID_LEN/2];
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char cpuid_str[RK3399_CPUID_LEN * 2 + 1];
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u64 serialno;
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char serialno_str[16];
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/* retrieve the device */
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ret = uclass_get_device_by_driver(UCLASS_MISC,
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DM_GET_DRIVER(rockchip_efuse), &dev);
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if (ret) {
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debug("%s: could not find efuse device\n", __func__);
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return;
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}
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/* read the cpu_id range from the efuses */
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ret = misc_read(dev, RK3399_CPUID_OFF, &cpuid, sizeof(cpuid));
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if (ret) {
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debug("%s: reading cpuid from the efuses failed\n",
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__func__);
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return;
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}
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memset(cpuid_str, 0, sizeof(cpuid_str));
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for (i = 0; i < 16; i++)
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sprintf(&cpuid_str[i * 2], "%02x", cpuid[i]);
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debug("cpuid: %s\n", cpuid_str);
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/*
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* Mix the cpuid bytes using the same rules as in
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* ${linux}/drivers/soc/rockchip/rockchip-cpuinfo.c
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*/
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for (i = 0; i < 8; i++) {
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low[i] = cpuid[1 + (i << 1)];
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high[i] = cpuid[i << 1];
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}
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serialno = crc32_no_comp(0, low, 8);
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serialno |= (u64)crc32_no_comp(serialno, high, 8) << 32;
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snprintf(serialno_str, sizeof(serialno_str), "%llx", serialno);
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env_set("cpuid#", cpuid_str);
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env_set("serial#", serialno_str);
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#endif
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return;
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}
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int misc_init_r(void)
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{
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setup_serial();
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setup_macaddr();
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return 0;
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}
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#ifdef CONFIG_SERIAL_TAG
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void get_board_serial(struct tag_serialnr *serialnr)
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{
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char *serial_string;
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u64 serial = 0;
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serial_string = env_get("serial#");
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if (serial_string)
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serial = simple_strtoull(serial_string, NULL, 16);
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serialnr->high = (u32)(serial >> 32);
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serialnr->low = (u32)(serial & 0xffffffff);
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}
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#endif
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#ifdef CONFIG_USB_DWC3
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static struct dwc3_device dwc3_device_data = {
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.maximum_speed = USB_SPEED_HIGH,
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.base = 0xfe800000,
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.dr_mode = USB_DR_MODE_PERIPHERAL,
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.index = 0,
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.dis_u2_susphy_quirk = 1,
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.usb2_phyif_utmi_width = 16,
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};
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int usb_gadget_handle_interrupts(void)
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{
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dwc3_uboot_handle_interrupt(0);
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return 0;
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}
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int board_usb_init(int index, enum usb_init_type init)
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{
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return dwc3_uboot_init(&dwc3_device_data);
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}
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#endif
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