From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001
From: Yuval Adam <_@yuv.al>
Date: Wed, 30 Aug 2017 08:25:59 +0000
Subject: Initial file dump from open source release

---
 arch/mips/ath79/dev-common.c | 116 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 arch/mips/ath79/dev-common.c

(limited to 'arch/mips/ath79/dev-common.c')

diff --git a/arch/mips/ath79/dev-common.c b/arch/mips/ath79/dev-common.c
new file mode 100644
index 00000000..a3a2741d
--- /dev/null
+++ b/arch/mips/ath79/dev-common.c
@@ -0,0 +1,116 @@
+/*
+ *  Atheros AR71XX/AR724X/AR913X common devices
+ *
+ *  Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ *  Parts of this file are based on Atheros' 2.6.15 BSP
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/serial_8250.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+
+#include <asm/mach-ath79/ath79.h>
+#include <asm/mach-ath79/ar71xx_regs.h>
+#include <asm/mach-ath79/ar933x_uart_platform.h>
+#include "common.h"
+#include "dev-common.h"
+
+static struct resource ath79_uart_resources[] = {
+	{
+		.start	= AR71XX_UART_BASE,
+		.end	= AR71XX_UART_BASE + AR71XX_UART_SIZE - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+#define AR71XX_UART_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP)
+static struct plat_serial8250_port ath79_uart_data[] = {
+	{
+		.mapbase	= AR71XX_UART_BASE,
+		.irq		= ATH79_MISC_IRQ(3),
+		.flags		= AR71XX_UART_FLAGS,
+		.iotype		= UPIO_MEM32,
+		.regshift	= 2,
+	}, {
+		/* terminating entry */
+	}
+};
+
+static struct platform_device ath79_uart_device = {
+	.name		= "serial8250",
+	.id		= PLAT8250_DEV_PLATFORM,
+	.resource	= ath79_uart_resources,
+	.num_resources	= ARRAY_SIZE(ath79_uart_resources),
+	.dev = {
+		.platform_data	= ath79_uart_data
+	},
+};
+
+static struct resource ar933x_uart_resources[] = {
+	{
+		.start	= AR933X_UART_BASE,
+		.end	= AR933X_UART_BASE + AR71XX_UART_SIZE - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= ATH79_MISC_IRQ(3),
+		.end	= ATH79_MISC_IRQ(3),
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct ar933x_uart_platform_data ar933x_uart_data;
+static struct platform_device ar933x_uart_device = {
+	.name		= "ar933x-uart",
+	.id		= -1,
+	.resource	= ar933x_uart_resources,
+	.num_resources	= ARRAY_SIZE(ar933x_uart_resources),
+	.dev = {
+		.platform_data	= &ar933x_uart_data,
+	},
+};
+
+void __init ath79_register_uart(void)
+{
+	struct clk *clk;
+
+	clk = clk_get(NULL, "uart");
+	if (IS_ERR(clk))
+		panic("unable to get UART clock, err=%ld", PTR_ERR(clk));
+
+	if (soc_is_ar71xx() ||
+	    soc_is_ar724x() ||
+	    soc_is_ar913x() ||
+	    soc_is_ar934x() ||
+	    soc_is_qca955x()) {
+		ath79_uart_data[0].uartclk = clk_get_rate(clk);
+		platform_device_register(&ath79_uart_device);
+	} else if (soc_is_ar933x()) {
+		ar933x_uart_data.uartclk = clk_get_rate(clk);
+		platform_device_register(&ar933x_uart_device);
+	} else {
+		BUG();
+	}
+}
+
+void __init ath79_register_wdt(void)
+{
+	struct resource res;
+
+	memset(&res, 0, sizeof(res));
+
+	res.flags = IORESOURCE_MEM;
+	res.start = AR71XX_RESET_BASE + AR71XX_RESET_REG_WDOG_CTRL;
+	res.end = res.start + 0x8 - 1;
+
+	platform_device_register_simple("ath79-wdt", -1, &res, 1);
+}
-- 
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