[ARM] 4874/2: ixp4xx: Add support for the Freecom FSG-3 board

The Freecom-FSG3 is a small network-attached-storage device with the
following feature set:

* Intel IXP422
* 4MB Flash (ixp4xx flash driver)
* 64MB RAM
* 4 USB 2.0 host ports (ehci and ohci drivers)
* 1 WAN (eth1) and 3 LAN (eth0) ethernet ports
  * Supported by the open source ixp4xx ethernet driver
* Via VT6421 disk controller (libata and sata-via drivers)
  * Internal hard disk (PATA supported, SATA not yet supported)
  * External SATA port (not yet supported)
* ISL1208 RTC chip
* Winbond 83782 temp sensor and fan controller
* MiniPCI slot

The ixp4xx_defconfig is also updated to support this device (the
leds-fsg driver is to be submitted separately via the leds tree after
this initial support is merged, as it depends on header gpio defines).

Signed-off-by: Rod Whitby <rod@whitby.id.au>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Rod Whitby 2008-04-01 10:53:23 +01:00 committed by Russell King
parent 05dda977f2
commit 7e36e2f535
8 changed files with 421 additions and 4 deletions

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@ -165,6 +165,7 @@ CONFIG_ARCH_PRPMC1100=y
CONFIG_MACH_NAS100D=y
CONFIG_MACH_DSMG600=y
CONFIG_ARCH_IXDP4XX=y
CONFIG_MACH_FSG=y
CONFIG_CPU_IXP46X=y
CONFIG_CPU_IXP43X=y
CONFIG_MACH_GTWX5715=y
@ -770,7 +771,7 @@ CONFIG_ATA=y
# CONFIG_SATA_SIL24 is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
CONFIG_SATA_VIA=y
# CONFIG_SATA_VITESSE is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_PATA_ALI is not set
@ -1143,7 +1144,7 @@ CONFIG_HWMON=y
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83781D is not set
CONFIG_SENSORS_W83781D=y
# CONFIG_SENSORS_W83791D is not set
# CONFIG_SENSORS_W83792D is not set
# CONFIG_SENSORS_W83793 is not set
@ -1334,8 +1335,8 @@ CONFIG_LEDS_CLASS=y
#
# LED drivers
#
# CONFIG_LEDS_IXP4XX is not set
CONFIG_LEDS_GPIO=y
CONFIG_LEDS_FSG=y
#
# LED Triggers
@ -1367,7 +1368,7 @@ CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
CONFIG_RTC_DRV_ISL1208=y
CONFIG_RTC_DRV_X1205=y
CONFIG_RTC_DRV_PCF8563=y
# CONFIG_RTC_DRV_PCF8583 is not set

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@ -125,6 +125,15 @@ config ARCH_IXDP4XX
depends on ARCH_IXDP425 || MACH_IXDP465 || MACH_KIXRP435
default y
config MACH_FSG
bool
prompt "Freecom FSG-3"
select PCI
help
Say 'Y' here if you want your kernel to support Freecom's
FSG-3 device. For more information on this platform,
see http://www.nslu2-linux.org/wiki/FSG3/HomePage
#
# Certain registers and IRQs are only enabled if supporting IXP465 CPUs
#

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@ -15,6 +15,7 @@ obj-pci-$(CONFIG_MACH_NAS100D) += nas100d-pci.o
obj-pci-$(CONFIG_MACH_DSMG600) += dsmg600-pci.o
obj-pci-$(CONFIG_MACH_GATEWAY7001) += gateway7001-pci.o
obj-pci-$(CONFIG_MACH_WG302V2) += wg302v2-pci.o
obj-pci-$(CONFIG_MACH_FSG) += fsg-pci.o
obj-y += common.o
@ -28,6 +29,7 @@ obj-$(CONFIG_MACH_NAS100D) += nas100d-setup.o
obj-$(CONFIG_MACH_DSMG600) += dsmg600-setup.o
obj-$(CONFIG_MACH_GATEWAY7001) += gateway7001-setup.o
obj-$(CONFIG_MACH_WG302V2) += wg302v2-setup.o
obj-$(CONFIG_MACH_FSG) += fsg-setup.o
obj-$(CONFIG_PCI) += $(obj-pci-$(CONFIG_PCI)) common-pci.o
obj-$(CONFIG_IXP4XX_QMGR) += ixp4xx_qmgr.o

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@ -0,0 +1,71 @@
/*
* arch/arch/mach-ixp4xx/fsg-pci.c
*
* FSG board-level PCI initialization
*
* Author: Rod Whitby <rod@whitby.id.au>
* Maintainer: http://www.nslu2-linux.org/
*
* based on ixdp425-pci.c:
* Copyright (C) 2002 Intel Corporation.
* Copyright (C) 2003-2004 MontaVista Software, Inc.
*
* 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/pci.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <asm/mach/pci.h>
#include <asm/mach-types.h>
void __init fsg_pci_preinit(void)
{
set_irq_type(IRQ_FSG_PCI_INTA, IRQT_LOW);
set_irq_type(IRQ_FSG_PCI_INTB, IRQT_LOW);
set_irq_type(IRQ_FSG_PCI_INTC, IRQT_LOW);
ixp4xx_pci_preinit();
}
static int __init fsg_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
static int pci_irq_table[FSG_PCI_IRQ_LINES] = {
IRQ_FSG_PCI_INTC,
IRQ_FSG_PCI_INTB,
IRQ_FSG_PCI_INTA,
};
int irq = -1;
slot = slot - 11;
if (slot >= 1 && slot <= FSG_PCI_MAX_DEV &&
pin >= 1 && pin <= FSG_PCI_IRQ_LINES)
irq = pci_irq_table[(slot - 1)];
printk(KERN_INFO "%s: Mapped slot %d pin %d to IRQ %d\n",
__func__, slot, pin, irq);
return irq;
}
struct hw_pci fsg_pci __initdata = {
.nr_controllers = 1,
.preinit = fsg_pci_preinit,
.swizzle = pci_std_swizzle,
.setup = ixp4xx_setup,
.scan = ixp4xx_scan_bus,
.map_irq = fsg_map_irq,
};
int __init fsg_pci_init(void)
{
if (machine_is_fsg())
pci_common_init(&fsg_pci);
return 0;
}
subsys_initcall(fsg_pci_init);

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@ -0,0 +1,276 @@
/*
* arch/arm/mach-ixp4xx/fsg-setup.c
*
* FSG board-setup
*
* Copyright (C) 2008 Rod Whitby <rod@whitby.id.au>
*
* based on ixdp425-setup.c:
* Copyright (C) 2003-2004 MontaVista Software, Inc.
* based on nslu2-power.c
* Copyright (C) 2005 Tower Technologies
*
* Author: Rod Whitby <rod@whitby.id.au>
* Maintainers: http://www.nslu2-linux.org/
*
*/
#include <linux/if_ether.h>
#include <linux/irq.h>
#include <linux/serial.h>
#include <linux/serial_8250.h>
#include <linux/leds.h>
#include <linux/reboot.h>
#include <linux/i2c.h>
#include <linux/i2c-gpio.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/io.h>
#include <asm/gpio.h>
static struct flash_platform_data fsg_flash_data = {
.map_name = "cfi_probe",
.width = 2,
};
static struct resource fsg_flash_resource = {
.flags = IORESOURCE_MEM,
};
static struct platform_device fsg_flash = {
.name = "IXP4XX-Flash",
.id = 0,
.dev = {
.platform_data = &fsg_flash_data,
},
.num_resources = 1,
.resource = &fsg_flash_resource,
};
static struct i2c_gpio_platform_data fsg_i2c_gpio_data = {
.sda_pin = FSG_SDA_PIN,
.scl_pin = FSG_SCL_PIN,
};
static struct platform_device fsg_i2c_gpio = {
.name = "i2c-gpio",
.id = 0,
.dev = {
.platform_data = &fsg_i2c_gpio_data,
},
};
static struct i2c_board_info __initdata fsg_i2c_board_info [] = {
{
I2C_BOARD_INFO("rtc-isl1208", 0x6f),
},
};
static struct resource fsg_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 fsg_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 fsg_uart = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = fsg_uart_data,
},
.num_resources = ARRAY_SIZE(fsg_uart_resources),
.resource = fsg_uart_resources,
};
static struct platform_device fsg_leds = {
.name = "fsg-led",
.id = -1,
};
/* Built-in 10/100 Ethernet MAC interfaces */
static struct eth_plat_info fsg_plat_eth[] = {
{
.phy = 5,
.rxq = 3,
.txreadyq = 20,
}, {
.phy = 4,
.rxq = 4,
.txreadyq = 21,
}
};
static struct platform_device fsg_eth[] = {
{
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEB,
.dev = {
.platform_data = fsg_plat_eth,
},
}, {
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEC,
.dev = {
.platform_data = fsg_plat_eth + 1,
},
}
};
static struct platform_device *fsg_devices[] __initdata = {
&fsg_i2c_gpio,
&fsg_flash,
&fsg_leds,
&fsg_eth[0],
&fsg_eth[1],
};
static irqreturn_t fsg_power_handler(int irq, void *dev_id)
{
/* 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 irqreturn_t fsg_reset_handler(int irq, void *dev_id)
{
/* This is the paper-clip reset which does an emergency reboot. */
printk(KERN_INFO "Restarting system.\n");
machine_restart(NULL);
/* This should never be reached. */
return IRQ_HANDLED;
}
static void __init fsg_init(void)
{
DECLARE_MAC_BUF(mac_buf);
uint8_t __iomem *f;
int i;
ixp4xx_sys_init();
fsg_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
fsg_flash_resource.end =
IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
*IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
*IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
/* Configure CS2 for operation, 8bit and writable */
*IXP4XX_EXP_CS2 = 0xbfff0002;
i2c_register_board_info(0, fsg_i2c_board_info,
ARRAY_SIZE(fsg_i2c_board_info));
/* This is only useful on a modified machine, but it is valuable
* to have it first in order to see debug messages, and so that
* it does *not* get removed if platform_add_devices fails!
*/
(void)platform_device_register(&fsg_uart);
platform_add_devices(fsg_devices, ARRAY_SIZE(fsg_devices));
if (request_irq(gpio_to_irq(FSG_RB_GPIO), &fsg_reset_handler,
IRQF_DISABLED | IRQF_TRIGGER_LOW,
"FSG reset button", NULL) < 0) {
printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
gpio_to_irq(FSG_RB_GPIO));
}
if (request_irq(gpio_to_irq(FSG_SB_GPIO), &fsg_power_handler,
IRQF_DISABLED | IRQF_TRIGGER_LOW,
"FSG power button", NULL) < 0) {
printk(KERN_DEBUG "Power Button IRQ %d not available\n",
gpio_to_irq(FSG_SB_GPIO));
}
/*
* Map in a portion of the flash and read the MAC addresses.
* Since it is stored in BE in the flash itself, we need to
* byteswap it if we're in LE mode.
*/
f = ioremap(IXP4XX_EXP_BUS_BASE(0), 0x400000);
if (f) {
#ifdef __ARMEB__
for (i = 0; i < 6; i++) {
fsg_plat_eth[0].hwaddr[i] = readb(f + 0x3C0422 + i);
fsg_plat_eth[1].hwaddr[i] = readb(f + 0x3C043B + i);
}
#else
/*
Endian-swapped reads from unaligned addresses are
required to extract the two MACs from the big-endian
Redboot config area in flash.
*/
fsg_plat_eth[0].hwaddr[0] = readb(f + 0x3C0421);
fsg_plat_eth[0].hwaddr[1] = readb(f + 0x3C0420);
fsg_plat_eth[0].hwaddr[2] = readb(f + 0x3C0427);
fsg_plat_eth[0].hwaddr[3] = readb(f + 0x3C0426);
fsg_plat_eth[0].hwaddr[4] = readb(f + 0x3C0425);
fsg_plat_eth[0].hwaddr[5] = readb(f + 0x3C0424);
fsg_plat_eth[1].hwaddr[0] = readb(f + 0x3C0439);
fsg_plat_eth[1].hwaddr[1] = readb(f + 0x3C043F);
fsg_plat_eth[1].hwaddr[2] = readb(f + 0x3C043E);
fsg_plat_eth[1].hwaddr[3] = readb(f + 0x3C043D);
fsg_plat_eth[1].hwaddr[4] = readb(f + 0x3C043C);
fsg_plat_eth[1].hwaddr[5] = readb(f + 0x3C0443);
#endif
iounmap(f);
}
printk(KERN_INFO "FSG: Using MAC address %s for port 0\n",
print_mac(mac_buf, fsg_plat_eth[0].hwaddr));
printk(KERN_INFO "FSG: Using MAC address %s for port 1\n",
print_mac(mac_buf, fsg_plat_eth[1].hwaddr));
}
MACHINE_START(FSG, "Freecom FSG-3")
/* Maintainer: www.nslu2-linux.org */
.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 = fsg_init,
MACHINE_END

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@ -0,0 +1,50 @@
/*
* include/asm-arm/arch-ixp4xx/fsg.h
*
* Freecom FSG-3 platform specific definitions
*
* Author: Rod Whitby <rod@whitby.id.au>
* Author: Tomasz Chmielewski <mangoo@wpkg.org>
* Maintainers: http://www.nslu2-linux.org
*
* Based on coyote.h by
* 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 FSG_SDA_PIN 12
#define FSG_SCL_PIN 13
/*
* FSG PCI IRQs
*/
#define FSG_PCI_MAX_DEV 3
#define FSG_PCI_IRQ_LINES 3
/* PCI controller GPIO to IRQ pin mappings */
#define FSG_PCI_INTA_PIN 6
#define FSG_PCI_INTB_PIN 7
#define FSG_PCI_INTC_PIN 5
/* Buttons */
#define FSG_SB_GPIO 4 /* sync button */
#define FSG_RB_GPIO 9 /* reset button */
#define FSG_UB_GPIO 10 /* usb button */
/* LEDs */
#define FSG_LED_WLAN_BIT 0
#define FSG_LED_WAN_BIT 1
#define FSG_LED_SATA_BIT 2
#define FSG_LED_USB_BIT 4
#define FSG_LED_RING_BIT 5
#define FSG_LED_SYNC_BIT 7

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@ -45,5 +45,6 @@
#include "nslu2.h"
#include "nas100d.h"
#include "dsmg600.h"
#include "fsg.h"
#endif /* _ASM_ARCH_HARDWARE_H */

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@ -128,4 +128,11 @@
#define IRQ_DSMG600_PCI_INTE IRQ_IXP4XX_GPIO7
#define IRQ_DSMG600_PCI_INTF IRQ_IXP4XX_GPIO6
/*
* Freecom FSG-3 Board IRQs
*/
#define IRQ_FSG_PCI_INTA IRQ_IXP4XX_GPIO6
#define IRQ_FSG_PCI_INTB IRQ_IXP4XX_GPIO7
#define IRQ_FSG_PCI_INTC IRQ_IXP4XX_GPIO5
#endif