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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (C) 2016 Marek Vasut <marex@denx.de>
- */
- #include <common.h>
- #include <init.h>
- #include <asm/io.h>
- #include <asm/addrspace.h>
- #include <asm/types.h>
- #include <linux/bitops.h>
- #include <linux/delay.h>
- #include <mach/ath79.h>
- #include <mach/ar71xx_regs.h>
- #include <mach/ddr.h>
- #include <debug_uart.h>
- #ifdef CONFIG_USB_HOST
- 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
- void wdr4300_pinmux_config(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_BOARD_INIT
- void board_debug_uart_init(void)
- {
- wdr4300_pinmux_config();
- }
- #endif
- #ifdef CONFIG_BOARD_EARLY_INIT_F
- int board_early_init_f(void)
- {
- #ifndef CONFIG_DEBUG_UART_BOARD_INIT
- wdr4300_pinmux_config();
- #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
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