diff options
Diffstat (limited to 'arch/arm/mach-ixp4xx')
| -rw-r--r-- | arch/arm/mach-ixp4xx/Kconfig | 8 | ||||
| -rw-r--r-- | arch/arm/mach-ixp4xx/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-ixp4xx/nas100d-pci.c | 77 | ||||
| -rw-r--r-- | arch/arm/mach-ixp4xx/nas100d-power.c | 69 | ||||
| -rw-r--r-- | arch/arm/mach-ixp4xx/nas100d-setup.c | 133 |
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 |