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openwrt-xburst/target/linux/ixp4xx-2.6/patches/710-avila_loft_setup.patch
kaloz a5471b5250 fixup avila networking, add support for the loft 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7168 3c298f89-4303-0410-b956-a3cf2f4a3e73
2007-05-10 11:29:43 +00:00

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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 <at> cam.ac.uk>
Index: linux-2.6.19/arch/arm/mach-ixp4xx/Kconfig
===================================================================
--- linux-2.6.19.orig/arch/arm/mach-ixp4xx/Kconfig
+++ linux-2.6.19/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
#
Index: linux-2.6.19/arch/arm/mach-ixp4xx/Makefile
===================================================================
--- linux-2.6.19.orig/arch/arm/mach-ixp4xx/Makefile
+++ linux-2.6.19/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) += nas10
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
Index: linux-2.6.19/arch/arm/mach-ixp4xx/avila-pci.c
===================================================================
--- /dev/null
+++ linux-2.6.19/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);
+
Index: linux-2.6.19/arch/arm/mach-ixp4xx/avila-setup.c
===================================================================
--- /dev/null
+++ linux-2.6.19/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
+
Index: linux-2.6.19/include/asm-arm/arch-ixp4xx/avila.h
===================================================================
--- /dev/null
+++ linux-2.6.19/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
+
+
Index: linux-2.6.19/include/asm-arm/arch-ixp4xx/hardware.h
===================================================================
--- linux-2.6.19.orig/include/asm-arm/arch-ixp4xx/hardware.h
+++ linux-2.6.19/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"
Index: linux-2.6.19/include/asm-arm/arch-ixp4xx/irqs.h
===================================================================
--- linux-2.6.19.orig/include/asm-arm/arch-ixp4xx/irqs.h
+++ linux-2.6.19/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
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