Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / arm / mach-footbridge / isa.c

diff --git a/kernel/arch/arm/mach-footbridge/isa.c b/kernel/arch/arm/mach-footbridge/isa.c
new file mode 100644 (file)
index 0000000..4d9276c
--- /dev/null
+++ b/kernel/arch/arm/mach-footbridge/isa.c
@@ -0,0 +1,101 @@
+/*
+ *  linux/arch/arm/mach-footbridge/isa.c
+ *
+ *  Copyright (C) 2004 Russell King.
+ *
+ * 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/init.h>
+#include <linux/serial_8250.h>
+
+#include <asm/irq.h>
+#include <asm/hardware/dec21285.h>
+
+#include "common.h"
+
+static struct resource rtc_resources[] = {
+       [0] = {
+               .start  = 0x70,
+               .end    = 0x73,
+               .flags  = IORESOURCE_IO,
+       },
+       [1] = {
+               .start  = IRQ_ISA_RTC_ALARM,
+               .end    = IRQ_ISA_RTC_ALARM,
+               .flags  = IORESOURCE_IRQ,
+       }
+};
+
+static struct platform_device rtc_device = {
+       .name           = "rtc_cmos",
+       .id             = -1,
+       .resource       = rtc_resources,
+       .num_resources  = ARRAY_SIZE(rtc_resources),
+};
+
+static struct resource serial_resources[] = {
+       [0] = {
+               .start  = 0x3f8,
+               .end    = 0x3ff,
+               .flags  = IORESOURCE_IO,
+       },
+       [1] = {
+               .start  = 0x2f8,
+               .end    = 0x2ff,
+               .flags  = IORESOURCE_IO,
+       },
+};
+
+static struct plat_serial8250_port serial_platform_data[] = {
+       {
+               .iobase         = 0x3f8,
+               .irq            = IRQ_ISA_UART,
+               .uartclk        = 1843200,
+               .regshift       = 0,
+               .iotype         = UPIO_PORT,
+               .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+       },
+       {
+               .iobase         = 0x2f8,
+               .irq            = IRQ_ISA_UART2,
+               .uartclk        = 1843200,
+               .regshift       = 0,
+               .iotype         = UPIO_PORT,
+               .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+       },
+       { },
+};
+
+static struct platform_device serial_device = {
+       .name                   = "serial8250",
+       .id                     = PLAT8250_DEV_PLATFORM,
+       .dev                    = {
+               .platform_data  = serial_platform_data,
+       },
+       .resource               = serial_resources,
+       .num_resources          = ARRAY_SIZE(serial_resources),
+};
+
+static int __init footbridge_isa_init(void)
+{
+       int err = 0;
+
+       if (!footbridge_cfn_mode())
+               return 0;
+
+       /* Personal server doesn't have RTC */
+       if (!machine_is_personal_server()) {
+               isa_rtc_init();
+               err = platform_device_register(&rtc_device);
+               if (err)
+                       printk(KERN_ERR "Unable to register RTC device: %d\n", err);
+       }
+       err = platform_device_register(&serial_device);
+       if (err)
+               printk(KERN_ERR "Unable to register serial device: %d\n", err);
+       return 0;
+}
+
+arch_initcall(footbridge_isa_init);