/* * Copyright (C) 2016 Marek Vasut <marex@denx.de> * * SPDX-License-Identifier: GPL-2.0+ */ #include <common.h> #include <asm/io.h> #include <asm/addrspace.h> #include <asm/types.h> #include <mach/ath79.h> #include <mach/ar71xx_regs.h> #include <mach/ddr.h> #include <debug_uart.h> DECLARE_GLOBAL_DATA_PTR; #ifdef CONFIG_USB static void wdr4300_usb_start(void) { void __iomem *gpio_regs = map_physmem(AR71XX_GPIO_BASE, AR71XX_GPIO_SIZE, MAP_NOCACHE); if (!gpio_regs) return; /* Power up the USB HUB. */ clrbits_be32(gpio_regs + AR71XX_GPIO_REG_OE, BIT(21) | BIT(22)); writel(BIT(21) | BIT(22), gpio_regs + AR71XX_GPIO_REG_SET); mdelay(1); ath79_usb_reset(); } #else static inline void wdr4300_usb_start(void) {} #endif #ifdef CONFIG_BOARD_EARLY_INIT_F int board_early_init_f(void) { void __iomem *regs; regs = map_physmem(AR71XX_GPIO_BASE, AR71XX_GPIO_SIZE, MAP_NOCACHE); /* Assure JTAG is not disconnected. */ writel(0x40, regs + AR934X_GPIO_REG_FUNC); /* Configure default GPIO input/output regs. */ writel(0x3031b, regs + AR71XX_GPIO_REG_OE); writel(0x0f804, regs + AR71XX_GPIO_REG_OUT); /* Configure pin multiplexing. */ writel(0x00000000, regs + AR934X_GPIO_REG_OUT_FUNC0); writel(0x0b0a0980, regs + AR934X_GPIO_REG_OUT_FUNC1); writel(0x00180000, regs + AR934X_GPIO_REG_OUT_FUNC2); writel(0x00000000, regs + AR934X_GPIO_REG_OUT_FUNC3); writel(0x0000004d, regs + AR934X_GPIO_REG_OUT_FUNC4); writel(0x00000000, regs + AR934X_GPIO_REG_OUT_FUNC5); #ifdef CONFIG_DEBUG_UART debug_uart_init(); #endif #ifndef CONFIG_SKIP_LOWLEVEL_INIT ar934x_pll_init(560, 480, 240); ar934x_ddr_init(560, 480, 240); #endif wdr4300_usb_start(); ath79_eth_reset(); return 0; } #endif