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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/mips/ath79/dev-common.c
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/mips/ath79/dev-common.c')
-rw-r--r--kernel/arch/mips/ath79/dev-common.c108
1 files changed, 108 insertions, 0 deletions
diff --git a/kernel/arch/mips/ath79/dev-common.c b/kernel/arch/mips/ath79/dev-common.c
new file mode 100644
index 000000000..516225d20
--- /dev/null
+++ b/kernel/arch/mips/ath79/dev-common.c
@@ -0,0 +1,108 @@
+/*
+ * 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 "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 platform_device ar933x_uart_device = {
+ .name = "ar933x-uart",
+ .id = -1,
+ .resource = ar933x_uart_resources,
+ .num_resources = ARRAY_SIZE(ar933x_uart_resources),
+};
+
+void __init ath79_register_uart(void)
+{
+ unsigned long uart_clk_rate;
+
+ uart_clk_rate = ath79_get_sys_clk_rate("uart");
+
+ if (soc_is_ar71xx() ||
+ soc_is_ar724x() ||
+ soc_is_ar913x() ||
+ soc_is_ar934x() ||
+ soc_is_qca955x()) {
+ ath79_uart_data[0].uartclk = uart_clk_rate;
+ platform_device_register(&ath79_uart_device);
+ } else if (soc_is_ar933x()) {
+ 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);
+}