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-rw-r--r--arch/arm/mach-ks8695/board-og.c199
1 files changed, 199 insertions, 0 deletions
diff --git a/arch/arm/mach-ks8695/board-og.c b/arch/arm/mach-ks8695/board-og.c
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+++ b/arch/arm/mach-ks8695/board-og.c
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+/*
+ * board-og.c -- support for the OpenGear KS8695 based boards.
+ *
+ * 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/types.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/serial_8250.h>
+#include <linux/gpio.h>
+#include <linux/irq.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <mach/devices.h>
+#include <mach/regs-gpio.h>
+#include <mach/gpio-ks8695.h>
+#include "generic.h"
+
+static int og_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+ if (machine_is_im4004() && (slot == 8))
+ return KS8695_IRQ_EXTERN1;
+ return KS8695_IRQ_EXTERN0;
+}
+
+static struct ks8695_pci_cfg __initdata og_pci = {
+ .mode = KS8695_MODE_PCI,
+ .map_irq = og_pci_map_irq,
+};
+
+static void __init og_register_pci(void)
+{
+ /* Initialize the GPIO lines for interrupt mode */
+ ks8695_gpio_interrupt(KS8695_GPIO_0, IRQ_TYPE_LEVEL_LOW);
+
+ /* Cardbus Slot */
+ if (machine_is_im4004())
+ ks8695_gpio_interrupt(KS8695_GPIO_1, IRQ_TYPE_LEVEL_LOW);
+
+ ks8695_init_pci(&og_pci);
+}
+
+/*
+ * The PCI bus reset is driven by a dedicated GPIO line. Toggle it here
+ * and bring the PCI bus out of reset.
+ */
+static void __init og_pci_bus_reset(void)
+{
+ unsigned int rstline = 1;
+
+ /* Some boards use a different GPIO as the PCI reset line */
+ if (machine_is_im4004())
+ rstline = 2;
+ else if (machine_is_im42xx())
+ rstline = 0;
+
+ gpio_request(rstline, "PCI reset");
+ gpio_direction_output(rstline, 0);
+
+ /* Drive a reset on the PCI reset line */
+ gpio_set_value(rstline, 1);
+ gpio_set_value(rstline, 0);
+ mdelay(100);
+ gpio_set_value(rstline, 1);
+ mdelay(100);
+}
+
+/*
+ * Direct connect serial ports (non-PCI that is).
+ */
+#define S8250_PHYS 0x03800000
+#define S8250_VIRT 0xf4000000
+#define S8250_SIZE 0x00100000
+
+static struct __initdata map_desc og_io_desc[] = {
+ {
+ .virtual = S8250_VIRT,
+ .pfn = __phys_to_pfn(S8250_PHYS),
+ .length = S8250_SIZE,
+ .type = MT_DEVICE,
+ }
+};
+
+static struct resource og_uart_resources[] = {
+ {
+ .start = S8250_VIRT,
+ .end = S8250_VIRT + S8250_SIZE,
+ .flags = IORESOURCE_MEM
+ },
+};
+
+static struct plat_serial8250_port og_uart_data[] = {
+ {
+ .mapbase = S8250_VIRT,
+ .membase = (char *) S8250_VIRT,
+ .irq = 3,
+ .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+ .iotype = UPIO_MEM,
+ .regshift = 2,
+ .uartclk = 115200 * 16,
+ },
+ { },
+};
+
+static struct platform_device og_uart = {
+ .name = "serial8250",
+ .id = 0,
+ .dev.platform_data = og_uart_data,
+ .num_resources = 1,
+ .resource = og_uart_resources
+};
+
+static struct platform_device *og_devices[] __initdata = {
+ &og_uart
+};
+
+static void __init og_init(void)
+{
+ ks8695_register_gpios();
+
+ if (machine_is_cm4002()) {
+ ks8695_gpio_interrupt(KS8695_GPIO_1, IRQ_TYPE_LEVEL_HIGH);
+ iotable_init(og_io_desc, ARRAY_SIZE(og_io_desc));
+ platform_add_devices(og_devices, ARRAY_SIZE(og_devices));
+ } else {
+ og_pci_bus_reset();
+ og_register_pci();
+ }
+
+ ks8695_add_device_lan();
+ ks8695_add_device_wan();
+}
+
+#ifdef CONFIG_MACH_CM4002
+MACHINE_START(CM4002, "OpenGear/CM4002")
+ /* OpenGear Inc. */
+ .atag_offset = 0x100,
+ .map_io = ks8695_map_io,
+ .init_irq = ks8695_init_irq,
+ .init_machine = og_init,
+ .timer = &ks8695_timer,
+ .restart = ks8695_restart,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_MACH_CM4008
+MACHINE_START(CM4008, "OpenGear/CM4008")
+ /* OpenGear Inc. */
+ .atag_offset = 0x100,
+ .map_io = ks8695_map_io,
+ .init_irq = ks8695_init_irq,
+ .init_machine = og_init,
+ .timer = &ks8695_timer,
+ .restart = ks8695_restart,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_MACH_CM41xx
+MACHINE_START(CM41XX, "OpenGear/CM41xx")
+ /* OpenGear Inc. */
+ .atag_offset = 0x100,
+ .map_io = ks8695_map_io,
+ .init_irq = ks8695_init_irq,
+ .init_machine = og_init,
+ .timer = &ks8695_timer,
+ .restart = ks8695_restart,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_MACH_IM4004
+MACHINE_START(IM4004, "OpenGear/IM4004")
+ /* OpenGear Inc. */
+ .atag_offset = 0x100,
+ .map_io = ks8695_map_io,
+ .init_irq = ks8695_init_irq,
+ .init_machine = og_init,
+ .timer = &ks8695_timer,
+ .restart = ks8695_restart,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_MACH_IM42xx
+MACHINE_START(IM42XX, "OpenGear/IM42xx")
+ /* OpenGear Inc. */
+ .atag_offset = 0x100,
+ .map_io = ks8695_map_io,
+ .init_irq = ks8695_init_irq,
+ .init_machine = og_init,
+ .timer = &ks8695_timer,
+ .restart = ks8695_restart,
+MACHINE_END
+#endif