mips: ath79: Add support for TPLink WDR4300

[u-boot] / board / tplink / wdr4300 / wdr4300.c

diff --git a/board/tplink/wdr4300/wdr4300.c b/board/tplink/wdr4300/wdr4300.c
new file mode 100644 (file)
index 0000000..6e070fd
--- /dev/null
+++ b/board/tplink/wdr4300/wdr4300.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2016 Marek Vasut <marex@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
+
+       wdr4300_usb_start();
+       ath79_eth_reset();
+
+       return 0;
+}
+#endif