1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2016 Marek Vasut <marex@denx.de>
8 #include <asm/addrspace.h>
10 #include <mach/ath79.h>
11 #include <mach/ar71xx_regs.h>
13 #include <debug_uart.h>
16 static void wdr4300_usb_start(void)
18 void __iomem *gpio_regs = map_physmem(AR71XX_GPIO_BASE,
19 AR71XX_GPIO_SIZE, MAP_NOCACHE);
23 /* Power up the USB HUB. */
24 clrbits_be32(gpio_regs + AR71XX_GPIO_REG_OE, BIT(21) | BIT(22));
25 writel(BIT(21) | BIT(22), gpio_regs + AR71XX_GPIO_REG_SET);
31 static inline void wdr4300_usb_start(void) {}
34 void wdr4300_pinmux_config(void)
38 regs = map_physmem(AR71XX_GPIO_BASE, AR71XX_GPIO_SIZE,
41 /* Assure JTAG is not disconnected. */
42 writel(0x40, regs + AR934X_GPIO_REG_FUNC);
44 /* Configure default GPIO input/output regs. */
45 writel(0x3031b, regs + AR71XX_GPIO_REG_OE);
46 writel(0x0f804, regs + AR71XX_GPIO_REG_OUT);
48 /* Configure pin multiplexing. */
49 writel(0x00000000, regs + AR934X_GPIO_REG_OUT_FUNC0);
50 writel(0x0b0a0980, regs + AR934X_GPIO_REG_OUT_FUNC1);
51 writel(0x00180000, regs + AR934X_GPIO_REG_OUT_FUNC2);
52 writel(0x00000000, regs + AR934X_GPIO_REG_OUT_FUNC3);
53 writel(0x0000004d, regs + AR934X_GPIO_REG_OUT_FUNC4);
54 writel(0x00000000, regs + AR934X_GPIO_REG_OUT_FUNC5);
57 #ifdef CONFIG_DEBUG_UART_BOARD_INIT
58 void board_debug_uart_init(void)
60 wdr4300_pinmux_config();
64 #ifdef CONFIG_BOARD_EARLY_INIT_F
65 int board_early_init_f(void)
67 #ifndef CONFIG_DEBUG_UART_BOARD_INIT
68 wdr4300_pinmux_config();
71 #ifndef CONFIG_SKIP_LOWLEVEL_INIT
72 ar934x_pll_init(560, 480, 240);
73 ar934x_ddr_init(560, 480, 240);