summaryrefslogtreecommitdiff
path: root/arch/arm
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-ixp4xx/Kconfig8
-rw-r--r--arch/arm/mach-ixp4xx/Makefile1
-rw-r--r--arch/arm/mach-ixp4xx/nas100d-pci.c77
-rw-r--r--arch/arm/mach-ixp4xx/nas100d-power.c69
-rw-r--r--arch/arm/mach-ixp4xx/nas100d-setup.c133
5 files changed, 288 insertions, 0 deletions
diff --git a/arch/arm/mach-ixp4xx/Kconfig b/arch/arm/mach-ixp4xx/Kconfig
index 385285851cb5..daadc78e271b 100644
--- a/arch/arm/mach-ixp4xx/Kconfig
+++ b/arch/arm/mach-ixp4xx/Kconfig
@@ -71,6 +71,14 @@ config ARCH_PRPMC1100
PrPCM1100 Processor Mezanine Module. For more information on
this platform, see <file:Documentation/arm/IXP4xx>.
+config MACH_NAS100D
+ bool
+ prompt "NAS100D"
+ help
+ Say 'Y' here if you want your kernel to support Iomega's
+ NAS 100d device. For more information on this platform,
+ see http://www.nslu2-linux.org/wiki/NAS100d/HomePage
+
#
# Avila and IXDP share the same source for now. Will change in future
#
diff --git a/arch/arm/mach-ixp4xx/Makefile b/arch/arm/mach-ixp4xx/Makefile
index 7a15629c18d0..0471044fa179 100644
--- a/arch/arm/mach-ixp4xx/Makefile
+++ b/arch/arm/mach-ixp4xx/Makefile
@@ -9,4 +9,5 @@ obj-$(CONFIG_MACH_IXDPG425) += ixdpg425-pci.o coyote-setup.o
obj-$(CONFIG_ARCH_ADI_COYOTE) += coyote-pci.o coyote-setup.o
obj-$(CONFIG_MACH_GTWX5715) += gtwx5715-pci.o gtwx5715-setup.o
obj-$(CONFIG_MACH_NSLU2) += nslu2-pci.o nslu2-setup.o nslu2-power.o
+obj-$(CONFIG_MACH_NAS100D) += nas100d-pci.o nas100d-setup.o nas100d-power.o
diff --git a/arch/arm/mach-ixp4xx/nas100d-pci.c b/arch/arm/mach-ixp4xx/nas100d-pci.c
new file mode 100644
index 000000000000..9bd029462359
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/nas100d-pci.c
@@ -0,0 +1,77 @@
+/*
+ * arch/arm/mach-ixp4xx/nas100d-pci.c
+ *
+ * NAS 100d board-level PCI initialization
+ *
+ * based on ixdp425-pci.c:
+ * Copyright (C) 2002 Intel Corporation.
+ * Copyright (C) 2003-2004 MontaVista Software, Inc.
+ *
+ * Maintainer: http://www.nslu2-linux.org/
+ *
+ * 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/config.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+
+#include <asm/mach/pci.h>
+#include <asm/mach-types.h>
+
+void __init nas100d_pci_preinit(void)
+{
+ set_irq_type(IRQ_NAS100D_PCI_INTA, IRQT_LOW);
+ set_irq_type(IRQ_NAS100D_PCI_INTB, IRQT_LOW);
+ set_irq_type(IRQ_NAS100D_PCI_INTC, IRQT_LOW);
+ set_irq_type(IRQ_NAS100D_PCI_INTD, IRQT_LOW);
+ set_irq_type(IRQ_NAS100D_PCI_INTE, IRQT_LOW);
+
+ gpio_line_isr_clear(NAS100D_PCI_INTA_PIN);
+ gpio_line_isr_clear(NAS100D_PCI_INTB_PIN);
+ gpio_line_isr_clear(NAS100D_PCI_INTC_PIN);
+ gpio_line_isr_clear(NAS100D_PCI_INTD_PIN);
+ gpio_line_isr_clear(NAS100D_PCI_INTE_PIN);
+
+ ixp4xx_pci_preinit();
+}
+
+static int __init nas100d_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+ static int pci_irq_table[NAS100D_PCI_MAX_DEV][NAS100D_PCI_IRQ_LINES] =
+ {
+ { IRQ_NAS100D_PCI_INTA, -1, -1 },
+ { IRQ_NAS100D_PCI_INTB, -1, -1 },
+ { IRQ_NAS100D_PCI_INTC, IRQ_NAS100D_PCI_INTD, IRQ_NAS100D_PCI_INTE },
+ };
+
+ int irq = -1;
+
+ if (slot >= 1 && slot <= NAS100D_PCI_MAX_DEV &&
+ pin >= 1 && pin <= NAS100D_PCI_IRQ_LINES)
+ irq = pci_irq_table[slot-1][pin-1];
+
+ return irq;
+}
+
+struct hw_pci __initdata nas100d_pci = {
+ .nr_controllers = 1,
+ .preinit = nas100d_pci_preinit,
+ .swizzle = pci_std_swizzle,
+ .setup = ixp4xx_setup,
+ .scan = ixp4xx_scan_bus,
+ .map_irq = nas100d_map_irq,
+};
+
+int __init nas100d_pci_init(void)
+{
+ if (machine_is_nas100d())
+ pci_common_init(&nas100d_pci);
+
+ return 0;
+}
+
+subsys_initcall(nas100d_pci_init);
diff --git a/arch/arm/mach-ixp4xx/nas100d-power.c b/arch/arm/mach-ixp4xx/nas100d-power.c
new file mode 100644
index 000000000000..c74a19004390
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/nas100d-power.c
@@ -0,0 +1,69 @@
+/*
+ * arch/arm/mach-ixp4xx/nas100d-power.c
+ *
+ * NAS 100d Power/Reset driver
+ *
+ * Copyright (C) 2005 Tower Technologies
+ *
+ * based on nas100d-io.c
+ * Copyright (C) 2004 Karen Spearel
+ *
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
+ * Maintainers: http://www.nslu2-linux.org/
+ *
+ * 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/module.h>
+#include <linux/reboot.h>
+#include <linux/interrupt.h>
+
+#include <asm/mach-types.h>
+
+extern void ctrl_alt_del(void);
+
+static irqreturn_t nas100d_reset_handler(int irq, void *dev_id, struct pt_regs *regs)
+{
+ /* Signal init to do the ctrlaltdel action, this will bypass init if
+ * it hasn't started and do a kernel_restart.
+ */
+ ctrl_alt_del();
+
+ return IRQ_HANDLED;
+}
+
+static int __init nas100d_power_init(void)
+{
+ if (!(machine_is_nas100d()))
+ return 0;
+
+ set_irq_type(NAS100D_RB_IRQ, IRQT_LOW);
+
+ gpio_line_isr_clear(NAS100D_RB_GPIO);
+
+ if (request_irq(NAS100D_RB_IRQ, &nas100d_reset_handler,
+ SA_INTERRUPT, "NAS100D reset button", NULL) < 0) {
+
+ printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
+ NAS100D_RB_IRQ);
+
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static void __exit nas100d_power_exit(void)
+{
+ free_irq(NAS100D_RB_IRQ, NULL);
+}
+
+module_init(nas100d_power_init);
+module_exit(nas100d_power_exit);
+
+MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
+MODULE_DESCRIPTION("NAS100D Power/Reset driver");
+MODULE_LICENSE("GPL");
diff --git a/arch/arm/mach-ixp4xx/nas100d-setup.c b/arch/arm/mach-ixp4xx/nas100d-setup.c
new file mode 100644
index 000000000000..bde9648e7afc
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/nas100d-setup.c
@@ -0,0 +1,133 @@
+/*
+ * arch/arm/mach-ixp4xx/nas100d-setup.c
+ *
+ * NAS 100d board-setup
+ *
+ * based ixdp425-setup.c:
+ * Copyright (C) 2003-2004 MontaVista Software, Inc.
+ *
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
+ * Author: Rod Whitby <rod@whitby.id.au>
+ * Maintainers: http://www.nslu2-linux.org/
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/serial.h>
+#include <linux/serial_8250.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+
+static struct flash_platform_data nas100d_flash_data = {
+ .map_name = "cfi_probe",
+ .width = 2,
+};
+
+static struct resource nas100d_flash_resource = {
+ .start = NAS100D_FLASH_BASE,
+ .end = NAS100D_FLASH_BASE + NAS100D_FLASH_SIZE,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device nas100d_flash = {
+ .name = "IXP4XX-Flash",
+ .id = 0,
+ .dev.platform_data = &nas100d_flash_data,
+ .num_resources = 1,
+ .resource = &nas100d_flash_resource,
+};
+
+static struct ixp4xx_i2c_pins nas100d_i2c_gpio_pins = {
+ .sda_pin = NAS100D_SDA_PIN,
+ .scl_pin = NAS100D_SCL_PIN,
+};
+
+static struct platform_device nas100d_i2c_controller = {
+ .name = "IXP4XX-I2C",
+ .id = 0,
+ .dev.platform_data = &nas100d_i2c_gpio_pins,
+ .num_resources = 0,
+};
+
+static struct resource nas100d_uart_resources[] = {
+ {
+ .start = IXP4XX_UART1_BASE_PHYS,
+ .end = IXP4XX_UART1_BASE_PHYS + 0x0fff,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = IXP4XX_UART2_BASE_PHYS,
+ .end = IXP4XX_UART2_BASE_PHYS + 0x0fff,
+ .flags = IORESOURCE_MEM,
+ }
+};
+
+static struct plat_serial8250_port nas100d_uart_data[] = {
+ {
+ .mapbase = IXP4XX_UART1_BASE_PHYS,
+ .membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
+ .irq = IRQ_IXP4XX_UART1,
+ .flags = UPF_BOOT_AUTOCONF,
+ .iotype = UPIO_MEM,
+ .regshift = 2,
+ .uartclk = IXP4XX_UART_XTAL,
+ },
+ {
+ .mapbase = IXP4XX_UART2_BASE_PHYS,
+ .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
+ .irq = IRQ_IXP4XX_UART2,
+ .flags = UPF_BOOT_AUTOCONF,
+ .iotype = UPIO_MEM,
+ .regshift = 2,
+ .uartclk = IXP4XX_UART_XTAL,
+ },
+ { }
+};
+
+static struct platform_device nas100d_uart = {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev.platform_data = nas100d_uart_data,
+ .num_resources = 2,
+ .resource = nas100d_uart_resources,
+};
+
+static struct platform_device *nas100d_devices[] __initdata = {
+ &nas100d_i2c_controller,
+ &nas100d_flash,
+ &nas100d_uart,
+};
+
+static void nas100d_power_off(void)
+{
+ /* This causes the box to drop the power and go dead. */
+
+ /* enable the pwr cntl gpio */
+ gpio_line_config(NAS100D_PO_GPIO, IXP4XX_GPIO_OUT);
+
+ /* do the deed */
+ gpio_line_set(NAS100D_PO_GPIO, IXP4XX_GPIO_HIGH);
+}
+
+static void __init nas100d_init(void)
+{
+ ixp4xx_sys_init();
+
+ pm_power_off = nas100d_power_off;
+
+ platform_add_devices(nas100d_devices, ARRAY_SIZE(nas100d_devices));
+}
+
+MACHINE_START(NAS100D, "Iomega NAS 100d")
+ /* Maintainer: www.nslu2-linux.org */
+ .phys_ram = PHYS_OFFSET,
+ .phys_io = IXP4XX_PERIPHERAL_BASE_PHYS,
+ .io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC,
+ .boot_params = 0x00000100,
+ .map_io = ixp4xx_map_io,
+ .init_irq = ixp4xx_init_irq,
+ .timer = &ixp4xx_timer,
+ .init_machine = nas100d_init,
+MACHINE_END
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-11 15:33:06 +0000