1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2016 Marek Vasut <marex@denx.de>
9 #include <asm/addrspace.h>
10 #include <asm/types.h>
11 #include <linux/delay.h>
12 #include <mach/ath79.h>
13 #include <mach/ar71xx_regs.h>
15 #include <debug_uart.h>
18 static void wdr4300_usb_start(void)
20 void __iomem *gpio_regs = map_physmem(AR71XX_GPIO_BASE,
21 AR71XX_GPIO_SIZE, MAP_NOCACHE);
25 /* Power up the USB HUB. */
26 clrbits_be32(gpio_regs + AR71XX_GPIO_REG_OE, BIT(21) | BIT(22));
27 writel(BIT(21) | BIT(22), gpio_regs + AR71XX_GPIO_REG_SET);
33 static inline void wdr4300_usb_start(void) {}
36 void wdr4300_pinmux_config(void)
40 regs = map_physmem(AR71XX_GPIO_BASE, AR71XX_GPIO_SIZE,
43 /* Assure JTAG is not disconnected. */
44 writel(0x40, regs + AR934X_GPIO_REG_FUNC);
46 /* Configure default GPIO input/output regs. */
47 writel(0x3031b, regs + AR71XX_GPIO_REG_OE);
48 writel(0x0f804, regs + AR71XX_GPIO_REG_OUT);
50 /* Configure pin multiplexing. */
51 writel(0x00000000, regs + AR934X_GPIO_REG_OUT_FUNC0);
52 writel(0x0b0a0980, regs + AR934X_GPIO_REG_OUT_FUNC1);
53 writel(0x00180000, regs + AR934X_GPIO_REG_OUT_FUNC2);
54 writel(0x00000000, regs + AR934X_GPIO_REG_OUT_FUNC3);
55 writel(0x0000004d, regs + AR934X_GPIO_REG_OUT_FUNC4);
56 writel(0x00000000, regs + AR934X_GPIO_REG_OUT_FUNC5);
59 #ifdef CONFIG_DEBUG_UART_BOARD_INIT
60 void board_debug_uart_init(void)
62 wdr4300_pinmux_config();
66 #ifdef CONFIG_BOARD_EARLY_INIT_F
67 int board_early_init_f(void)
69 #ifndef CONFIG_DEBUG_UART_BOARD_INIT
70 wdr4300_pinmux_config();
73 #ifndef CONFIG_SKIP_LOWLEVEL_INIT
74 ar934x_pll_init(560, 480, 240);
75 ar934x_ddr_init(560, 480, 240);