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 <mach/ath79.h>
12 #include <mach/ar71xx_regs.h>
14 #include <debug_uart.h>
17 static void wdr4300_usb_start(void)
19 void __iomem *gpio_regs = map_physmem(AR71XX_GPIO_BASE,
20 AR71XX_GPIO_SIZE, MAP_NOCACHE);
24 /* Power up the USB HUB. */
25 clrbits_be32(gpio_regs + AR71XX_GPIO_REG_OE, BIT(21) | BIT(22));
26 writel(BIT(21) | BIT(22), gpio_regs + AR71XX_GPIO_REG_SET);
32 static inline void wdr4300_usb_start(void) {}
35 void wdr4300_pinmux_config(void)
39 regs = map_physmem(AR71XX_GPIO_BASE, AR71XX_GPIO_SIZE,
42 /* Assure JTAG is not disconnected. */
43 writel(0x40, regs + AR934X_GPIO_REG_FUNC);
45 /* Configure default GPIO input/output regs. */
46 writel(0x3031b, regs + AR71XX_GPIO_REG_OE);
47 writel(0x0f804, regs + AR71XX_GPIO_REG_OUT);
49 /* Configure pin multiplexing. */
50 writel(0x00000000, regs + AR934X_GPIO_REG_OUT_FUNC0);
51 writel(0x0b0a0980, regs + AR934X_GPIO_REG_OUT_FUNC1);
52 writel(0x00180000, regs + AR934X_GPIO_REG_OUT_FUNC2);
53 writel(0x00000000, regs + AR934X_GPIO_REG_OUT_FUNC3);
54 writel(0x0000004d, regs + AR934X_GPIO_REG_OUT_FUNC4);
55 writel(0x00000000, regs + AR934X_GPIO_REG_OUT_FUNC5);
58 #ifdef CONFIG_DEBUG_UART_BOARD_INIT
59 void board_debug_uart_init(void)
61 wdr4300_pinmux_config();
65 #ifdef CONFIG_BOARD_EARLY_INIT_F
66 int board_early_init_f(void)
68 #ifndef CONFIG_DEBUG_UART_BOARD_INIT
69 wdr4300_pinmux_config();
72 #ifndef CONFIG_SKIP_LOWLEVEL_INIT
73 ar934x_pll_init(560, 480, 240);
74 ar934x_ddr_init(560, 480, 240);