diff options
author | Michael-Luke Jones <mlj28@cam.ac.uk> | 2006-12-16 23:04:05 +0100 |
---|---|---|
committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2007-02-06 16:46:46 +0000 |
commit | 0f1859719537acf5a611fd18be5d81c0cfd5fbf4 (patch) | |
tree | ac9178b8fdbdb098e6e3fda9672cda937fc3ceb5 | |
parent | 6e98a2f88e65d57cff9c98ce1744ff8e4498de31 (diff) |
[ARM] 4033/1: Add separate Avila board setup code
This patch adds support for the Gateworks Avila Network Platform in
a separate set of setup files to the IXDP425. This is necessary now
that a driver for the Avila CF card slot is available. It also adds
support for a minor variant on the Avila board known as the Loft,
which has a different number of maximum PCI devices.
Signed-off-by: Michael-Luke Jones <mlj28@cam.ac.uk>
Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r-- | arch/arm/mach-ixp4xx/Kconfig | 12 | ||||
-rw-r--r-- | arch/arm/mach-ixp4xx/Makefile | 2 | ||||
-rw-r--r-- | arch/arm/mach-ixp4xx/avila-pci.c | 78 | ||||
-rw-r--r-- | arch/arm/mach-ixp4xx/avila-setup.c | 152 | ||||
-rw-r--r-- | include/asm-arm/arch-ixp4xx/avila.h | 39 | ||||
-rw-r--r-- | include/asm-arm/arch-ixp4xx/hardware.h | 1 | ||||
-rw-r--r-- | include/asm-arm/arch-ixp4xx/irqs.h | 9 |
7 files changed, 291 insertions, 2 deletions
diff --git a/arch/arm/mach-ixp4xx/Kconfig b/arch/arm/mach-ixp4xx/Kconfig index e316bd93313..8a339cdfe22 100644 --- a/arch/arm/mach-ixp4xx/Kconfig +++ b/arch/arm/mach-ixp4xx/Kconfig @@ -17,7 +17,7 @@ config MACH_NSLU2 NSLU2 NAS device. For more information on this platform, see http://www.nslu2-linux.org -config ARCH_AVILA +config MACH_AVILA bool "Avila" select PCI help @@ -25,6 +25,14 @@ config ARCH_AVILA Avila Network Platform. For more information on this platform, see <file:Documentation/arm/IXP4xx>. +config MACH_LOFT + bool "Loft" + depends on MACH_AVILA + help + Say 'Y' here if you want your kernel to support the Giant + Shoulder Inc Loft board (a minor variation on the standard + Gateworks Avila Network Platform). + config ARCH_ADI_COYOTE bool "Coyote" select PCI @@ -86,7 +94,7 @@ config MACH_NAS100D # config ARCH_IXDP4XX bool - depends on ARCH_IXDP425 || ARCH_AVILA || MACH_IXDP465 + depends on ARCH_IXDP425 || MACH_IXDP465 default y # diff --git a/arch/arm/mach-ixp4xx/Makefile b/arch/arm/mach-ixp4xx/Makefile index 640315d8b96..746e297284e 100644 --- a/arch/arm/mach-ixp4xx/Makefile +++ b/arch/arm/mach-ixp4xx/Makefile @@ -6,6 +6,7 @@ obj-pci-y := obj-pci-n := obj-pci-$(CONFIG_ARCH_IXDP4XX) += ixdp425-pci.o +obj-pci-$(CONFIG_MACH_AVILA) += avila-pci.o obj-pci-$(CONFIG_MACH_IXDPG425) += ixdpg425-pci.o obj-pci-$(CONFIG_ARCH_ADI_COYOTE) += coyote-pci.o obj-pci-$(CONFIG_MACH_GTWX5715) += gtwx5715-pci.o @@ -15,6 +16,7 @@ obj-pci-$(CONFIG_MACH_NAS100D) += nas100d-pci.o obj-y += common.o obj-$(CONFIG_ARCH_IXDP4XX) += ixdp425-setup.o +obj-$(CONFIG_MACH_AVILA) += avila-setup.o obj-$(CONFIG_MACH_IXDPG425) += coyote-setup.o obj-$(CONFIG_ARCH_ADI_COYOTE) += coyote-setup.o obj-$(CONFIG_MACH_GTWX5715) += gtwx5715-setup.o diff --git a/arch/arm/mach-ixp4xx/avila-pci.c b/arch/arm/mach-ixp4xx/avila-pci.c new file mode 100644 index 00000000000..3f867691d9f --- /dev/null +++ b/arch/arm/mach-ixp4xx/avila-pci.c @@ -0,0 +1,78 @@ +/* + * arch/arm/mach-ixp4xx/avila-pci.c + * + * Gateworks Avila board-level PCI initialization + * + * Author: Michael-Luke Jones <mlj28@cam.ac.uk> + * + * Based on ixdp-pci.c + * Copyright (C) 2002 Intel Corporation. + * Copyright (C) 2003-2004 MontaVista Software, Inc. + * + * Maintainer: Deepak Saxena <dsaxena@plexity.net> + * + * 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/pci.h> +#include <linux/init.h> +#include <linux/irq.h> +#include <linux/delay.h> + +#include <asm/mach/pci.h> +#include <asm/irq.h> +#include <asm/hardware.h> +#include <asm/mach-types.h> + +void __init avila_pci_preinit(void) +{ + set_irq_type(IRQ_AVILA_PCI_INTA, IRQT_LOW); + set_irq_type(IRQ_AVILA_PCI_INTB, IRQT_LOW); + set_irq_type(IRQ_AVILA_PCI_INTC, IRQT_LOW); + set_irq_type(IRQ_AVILA_PCI_INTD, IRQT_LOW); + + ixp4xx_pci_preinit(); +} + +static int __init avila_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +{ + static int pci_irq_table[AVILA_PCI_IRQ_LINES] = { + IRQ_AVILA_PCI_INTA, + IRQ_AVILA_PCI_INTB, + IRQ_AVILA_PCI_INTC, + IRQ_AVILA_PCI_INTD + }; + + int irq = -1; + + if (slot >= 1 && + slot <= (machine_is_loft() ? LOFT_PCI_MAX_DEV : AVILA_PCI_MAX_DEV) && + pin >= 1 && pin <= AVILA_PCI_IRQ_LINES) { + irq = pci_irq_table[(slot + pin - 2) % 4]; + } + + return irq; +} + +struct hw_pci avila_pci __initdata = { + .nr_controllers = 1, + .preinit = avila_pci_preinit, + .swizzle = pci_std_swizzle, + .setup = ixp4xx_setup, + .scan = ixp4xx_scan_bus, + .map_irq = avila_map_irq, +}; + +int __init avila_pci_init(void) +{ + if (machine_is_avila() || machine_is_loft()) + pci_common_init(&avila_pci); + return 0; +} + +subsys_initcall(avila_pci_init); + diff --git a/arch/arm/mach-ixp4xx/avila-setup.c b/arch/arm/mach-ixp4xx/avila-setup.c new file mode 100644 index 00000000000..9f09f94593a --- /dev/null +++ b/arch/arm/mach-ixp4xx/avila-setup.c @@ -0,0 +1,152 @@ +/* + * arch/arm/mach-ixp4xx/avila-setup.c + * + * Gateworks Avila board-setup + * + * Author: Michael-Luke Jones <mlj28@cam.ac.uk> + * + * Based on ixdp-setup.c + * Copyright (C) 2003-2005 MontaVista Software, Inc. + * + * Author: Deepak Saxena <dsaxena@plexity.net> + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/device.h> +#include <linux/serial.h> +#include <linux/tty.h> +#include <linux/serial_8250.h> +#include <linux/slab.h> + +#include <asm/types.h> +#include <asm/setup.h> +#include <asm/memory.h> +#include <asm/hardware.h> +#include <asm/mach-types.h> +#include <asm/irq.h> +#include <asm/mach/arch.h> +#include <asm/mach/flash.h> + +static struct flash_platform_data avila_flash_data = { + .map_name = "cfi_probe", + .width = 2, +}; + +static struct resource avila_flash_resource = { + .flags = IORESOURCE_MEM, +}; + +static struct platform_device avila_flash = { + .name = "IXP4XX-Flash", + .id = 0, + .dev = { + .platform_data = &avila_flash_data, + }, + .num_resources = 1, + .resource = &avila_flash_resource, +}; + +static struct ixp4xx_i2c_pins avila_i2c_gpio_pins = { + .sda_pin = AVILA_SDA_PIN, + .scl_pin = AVILA_SCL_PIN, +}; + +static struct platform_device avila_i2c_controller = { + .name = "IXP4XX-I2C", + .id = 0, + .dev = { + .platform_data = &avila_i2c_gpio_pins, + }, + .num_resources = 0 +}; + +static struct resource avila_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 avila_uart_data[] = { + { + .mapbase = IXP4XX_UART1_BASE_PHYS, + .membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET, + .irq = IRQ_IXP4XX_UART1, + .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, + .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 | UPF_SKIP_TEST, + .iotype = UPIO_MEM, + .regshift = 2, + .uartclk = IXP4XX_UART_XTAL, + }, + { }, +}; + +static struct platform_device avila_uart = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM, + .dev.platform_data = avila_uart_data, + .num_resources = 2, + .resource = avila_uart_resources +}; + +static struct platform_device *avila_devices[] __initdata = { + &avila_i2c_controller, + &avila_flash, + &avila_uart +}; + +static void __init avila_init(void) +{ + ixp4xx_sys_init(); + + avila_flash_resource.start = IXP4XX_EXP_BUS_BASE(0); + avila_flash_resource.end = + IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1; + + platform_add_devices(avila_devices, ARRAY_SIZE(avila_devices)); +} + +MACHINE_START(AVILA, "Gateworks Avila Network Platform") + /* Maintainer: Deepak Saxena <dsaxena@plexity.net> */ + .phys_io = IXP4XX_PERIPHERAL_BASE_PHYS, + .io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc, + .map_io = ixp4xx_map_io, + .init_irq = ixp4xx_init_irq, + .timer = &ixp4xx_timer, + .boot_params = 0x0100, + .init_machine = avila_init, +MACHINE_END + + /* + * Loft is functionally equivalent to Avila except that it has a + * different number for the maximum PCI devices. The MACHINE + * structure below is identical to Avila except for the comment. + */ +#ifdef CONFIG_MACH_LOFT +MACHINE_START(LOFT, "Giant Shoulder Inc Loft board") + /* Maintainer: Tom Billman <kernel@giantshoulderinc.com> */ + .phys_io = IXP4XX_PERIPHERAL_BASE_PHYS, + .io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc, + .map_io = ixp4xx_map_io, + .init_irq = ixp4xx_init_irq, + .timer = &ixp4xx_timer, + .boot_params = 0x0100, + .init_machine = avila_init, +MACHINE_END +#endif + diff --git a/include/asm-arm/arch-ixp4xx/avila.h b/include/asm-arm/arch-ixp4xx/avila.h new file mode 100644 index 00000000000..0dfea0ccd6b --- /dev/null +++ b/include/asm-arm/arch-ixp4xx/avila.h @@ -0,0 +1,39 @@ +/* + * include/asm-arm/arch-ixp4xx/avila.h + * + * Gateworks Avila platform specific definitions + * + * Author: Michael-Luke Jones <mlj28@cam.ac.uk> + * + * Based on ixdp425.h + * Author: Deepak Saxena <dsaxena@plexity.net> + * + * Copyright 2004 (c) MontaVista, Software, Inc. + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#ifndef __ASM_ARCH_HARDWARE_H__ +#error "Do not include this directly, instead #include <asm/hardware.h>" +#endif + +#define AVILA_SDA_PIN 7 +#define AVILA_SCL_PIN 6 + +/* + * AVILA PCI IRQs + */ +#define AVILA_PCI_MAX_DEV 4 +#define LOFT_PCI_MAX_DEV 6 +#define AVILA_PCI_IRQ_LINES 4 + + +/* PCI controller GPIO to IRQ pin mappings */ +#define AVILA_PCI_INTA_PIN 11 +#define AVILA_PCI_INTB_PIN 10 +#define AVILA_PCI_INTC_PIN 9 +#define AVILA_PCI_INTD_PIN 8 + + diff --git a/include/asm-arm/arch-ixp4xx/hardware.h b/include/asm-arm/arch-ixp4xx/hardware.h index 6acb69c95ef..88fd0877dcc 100644 --- a/include/asm-arm/arch-ixp4xx/hardware.h +++ b/include/asm-arm/arch-ixp4xx/hardware.h @@ -42,6 +42,7 @@ extern unsigned int processor_id; /* Platform specific details */ #include "ixdp425.h" +#include "avila.h" #include "coyote.h" #include "prpmc1100.h" #include "nslu2.h" diff --git a/include/asm-arm/arch-ixp4xx/irqs.h b/include/asm-arm/arch-ixp4xx/irqs.h index f24b763ca18..e44a563d00f 100644 --- a/include/asm-arm/arch-ixp4xx/irqs.h +++ b/include/asm-arm/arch-ixp4xx/irqs.h @@ -79,6 +79,15 @@ #define IRQ_IXDP425_PCI_INTD IRQ_IXP4XX_GPIO8 /* + * Gateworks Avila board IRQs + */ +#define IRQ_AVILA_PCI_INTA IRQ_IXP4XX_GPIO11 +#define IRQ_AVILA_PCI_INTB IRQ_IXP4XX_GPIO10 +#define IRQ_AVILA_PCI_INTC IRQ_IXP4XX_GPIO9 +#define IRQ_AVILA_PCI_INTD IRQ_IXP4XX_GPIO8 + + +/* * PrPMC1100 Board IRQs */ #define IRQ_PRPMC1100_PCI_INTA IRQ_IXP4XX_GPIO11 |