On 05/21/2016 06:29 PM, Wills Wang wrote: > > > On 05/07/2016 02:10 AM, Marek Vasut wrote: > [...] >> diff --git a/board/tplink/wdr4300/wdr4300.c >> b/board/tplink/wdr4300/wdr4300.c >> new file mode 100644 >> index 0000000..6e070fd >> --- /dev/null >> +++ b/board/tplink/wdr4300/wdr4300.c >> @@ -0,0 +1,74 @@ >> +/* >> + * Copyright (C) 2016 Marek Vasut <ma...@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 > Can we get it to work if CONFIG_SKIP_LOWLEVEL_INIT is defined?
Well no, that's what CONFIG_SKIP_LOWLEVEL_INIT is for -- skipping low level initialization of the hardware. -- Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot