u-boot/arch/arm/mach-rockchip/board.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * (C) Copyright 2019 Rockchip Electronics Co., Ltd.
 */
#include <common.h>
#include <clk.h>
#include <dm.h>
#include <ram.h>
#include <syscon.h>
#include <asm/io.h>
#include <asm/arch-rockchip/boot_mode.h>
#include <asm/arch-rockchip/clock.h>
#include <asm/arch-rockchip/periph.h>
#include <asm/arch-rockchip/misc.h>
#include <power/regulator.h>

DECLARE_GLOBAL_DATA_PTR;

__weak int rk_board_late_init(void)
{
	return 0;
}

int board_late_init(void)
{
	setup_boot_mode();

	return rk_board_late_init();
}

int board_init(void)
{
	int ret;

#ifdef CONFIG_DM_REGULATOR
	ret = regulators_enable_boot_on(false);
	if (ret)
		debug("%s: Cannot enable boot on regulator\n", __func__);
#endif

	return 0;
}

#if !defined(CONFIG_SYS_DCACHE_OFF) && !defined(CONFIG_ARM64)
void enable_caches(void)
{
	/* Enable D-cache. I-cache is already enabled in start.S */
	dcache_enable();
}
#endif

#if defined(CONFIG_USB_GADGET)
#include <usb.h>

#if defined(CONFIG_USB_GADGET_DWC2_OTG)
#include <usb/dwc2_udc.h>

static struct dwc2_plat_otg_data otg_data = {
	.rx_fifo_sz	= 512,
	.np_tx_fifo_sz	= 16,
	.tx_fifo_sz	= 128,
};

int board_usb_init(int index, enum usb_init_type init)
{
	ofnode node;
	const char *mode;
	bool matched = false;

	/* find the usb_otg node */
	node = ofnode_by_compatible(ofnode_null(), "snps,dwc2");
	while (ofnode_valid(node)) {
		mode = ofnode_read_string(node, "dr_mode");
		if (mode && strcmp(mode, "otg") == 0) {
			matched = true;
			break;
		}

		node = ofnode_by_compatible(node, "snps,dwc2");
	}
	if (!matched) {
		debug("Not found usb_otg device\n");
		return -ENODEV;
	}
	otg_data.regs_otg = ofnode_get_addr(node);

#ifdef CONFIG_ROCKCHIP_RK3288
	int ret;
	u32 phandle, offset;
	ofnode phy_node;

	ret = ofnode_read_u32(node, "phys", &phandle);
	if (ret)
		return ret;

	node = ofnode_get_by_phandle(phandle);
	if (!ofnode_valid(node)) {
		debug("Not found usb phy device\n");
		return -ENODEV;
	}

	phy_node = ofnode_get_parent(node);
	if (!ofnode_valid(node)) {
		debug("Not found usb phy device\n");
		return -ENODEV;
	}

	otg_data.phy_of_node = phy_node;
	ret = ofnode_read_u32(node, "reg", &offset);
	if (ret)
		return ret;
	otg_data.regs_phy =  offset +
		(u32)syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
#endif
	return dwc2_udc_probe(&otg_data);
}

int board_usb_cleanup(int index, enum usb_init_type init)
{
	return 0;
}
#endif /* CONFIG_USB_GADGET_DWC2_OTG */

#if defined(CONFIG_USB_DWC3_GADGET) && !defined(CONFIG_DM_USB_GADGET)
#include <dwc3-uboot.h>

static struct dwc3_device dwc3_device_data = {
	.maximum_speed = USB_SPEED_HIGH,
	.base = 0xfe800000,
	.dr_mode = USB_DR_MODE_PERIPHERAL,
	.index = 0,
	.dis_u2_susphy_quirk = 1,
	.hsphy_mode = USBPHY_INTERFACE_MODE_UTMIW,
};

int usb_gadget_handle_interrupts(void)
{
	dwc3_uboot_handle_interrupt(0);
	return 0;
}

int board_usb_init(int index, enum usb_init_type init)
{
	return dwc3_uboot_init(&dwc3_device_data);
}
#endif /* CONFIG_USB_DWC3_GADGET */

#endif /* CONFIG_USB_GADGET */

#if CONFIG_IS_ENABLED(FASTBOOT)
int fastboot_set_reboot_flag(void)
{
	printf("Setting reboot to fastboot flag ...\n");
	/* Set boot mode to fastboot */
	writel(BOOT_FASTBOOT, CONFIG_ROCKCHIP_BOOT_MODE_REG);

	return 0;
}
#endif

#ifdef CONFIG_MISC_INIT_R
__weak int misc_init_r(void)
{
	const u32 cpuid_offset = 0x7;
	const u32 cpuid_length = 0x10;
	u8 cpuid[cpuid_length];
	int ret;

	ret = rockchip_cpuid_from_efuse(cpuid_offset, cpuid_length, cpuid);
	if (ret)
		return ret;

	ret = rockchip_cpuid_set(cpuid, cpuid_length);
	if (ret)
		return ret;

	ret = rockchip_setup_macaddr();

	return ret;
}
#endif