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path: root/packages/linux/ixp4xx-kernel/2.6.16/97-ds101-setup.patch
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diff -ruN linux-2.6.15.orig/arch/arm/mach-ixp4xx/ds101-setup.c linux-2.6.15.new/arch/arm/mach-ixp4xx/ds101-setup.c
--- linux-2.6.15.orig/arch/arm/mach-ixp4xx/ds101-setup.c        1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.15.new/arch/arm/mach-ixp4xx/ds101-setup.c 2006-02-11 02:17:35.000000000 +0100
@@ -0,0 +1,284 @@
+/*
+ * arch/arm/mach-ixp4xx/ds101-setup.c
+ *
+ * DS 101 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>
+ * Author: OEyvind Repvik <oyvind@repvik.org>
+ * Maintainers: http://www.nslu2-linux.org/
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/serial.h>
+#include <linux/serial_8250.h>
+#include <linux/mtd/mtd.h>
+#include <linux/leds.h>
+
+#include <asm/setup.h>
+#include <asm/memory.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+
+#include <net/maclist.h>
+
+static struct flash_platform_data ds101_flash_data = {
+       .map_name               = "cfi_probe",
+       .width                  = 2,
+};
+
+static struct resource ds101_flash_resource = {
+       .flags                  = IORESOURCE_MEM,
+};
+
+static struct platform_device ds101_flash = {
+       .name                   = "IXP4XX-Flash",
+       .id                     = 0,
+       .dev.platform_data      = &ds101_flash_data,
+       .num_resources          = 1,
+       .resource               = &ds101_flash_resource,
+};
+
+#ifdef CONFIG_LEDS_CLASS
+static struct resource ds101_led_resources[] = {
+       {
+               .name           = "power", /* blue power led */
+               .start          = 3,
+               .end            = 3,
+               .flags          = IXP4XX_GPIO_LOW,
+       },
+       {
+               .name           = "status-1",
+               .start          = 14,
+               .end            = 14,
+               .flags          = IXP4XX_GPIO_LOW,
+       },
+       {
+               .name           = "status-2",
+               .start          = 15,
+               .end            = 15,
+               .flags          = IXP4XX_GPIO_LOW,
+       },
+       {
+               .name           = "usb-1", /* The usb-copy-button led */
+               .start          = 5,
+               .end            = 5,
+               .flags          = IXP4XX_GPIO_LOW,
+       },
+       {
+               .name           = "usb-2", /* also the usb-copy-button led */
+               .start          = 4,
+               .end            = 4,
+               .flags          = IXP4XX_GPIO_LOW,
+       },
+       {
+               .name           = "test",
+               .start          = 6,
+               .end            = 6,
+               .flags          = IXP4XX_GPIO_LOW,
+       },
+};
+
+
+static struct platform_device ds101_leds = {
+       .name                   = "IXP4XX-GPIO-LED",
+       .id                     = -1,
+       .num_resources          = ARRAY_SIZE(ds101_led_resources),
+       .resource               = ds101_led_resources,
+};
+#endif
+
+static struct ixp4xx_i2c_pins ds101_i2c_gpio_pins = {
+       .sda_pin                = DS101_SDA_PIN,
+       .scl_pin                = DS101_SCL_PIN,
+};
+
+static struct platform_device ds101_i2c_controller = {
+       .name                   = "IXP4XX-I2C",
+       .id                     = 0,
+       .dev.platform_data      = &ds101_i2c_gpio_pins,
+       .num_resources          = 0,
+};
+
+static struct platform_device ds101_beeper = {
+        .name                   = "ixp4xx-beeper",
+        .id                     = 2,
+       .num_resources          = 0,
+};
+
+static struct resource ds101_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 ds101_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 ds101_uart = {
+       .name                   = "serial8250",
+       .id                     = PLAT8250_DEV_PLATFORM,
+       .dev.platform_data      = ds101_uart_data,
+       .num_resources          = 2,
+       .resource               = ds101_uart_resources,
+};
+
+static struct platform_device *ds101_devices[] __initdata = {
+       &ds101_i2c_controller,
+       &ds101_flash,
+       &ds101_beeper,
+};
+
+static void ds101_power_off(void)
+{
+       /* This causes the box to drop the power and go dead. */
+
+       /* enable the pwr cntl gpio */
+       gpio_line_config(DS101_PO_GPIO, IXP4XX_GPIO_OUT);
+
+       /* do the deed */
+       gpio_line_set(DS101_PO_GPIO, IXP4XX_GPIO_HIGH);
+}
+
+/*
+ * When the RedBoot config partition is added the MAC address is read from
+ * it.
+ * FIXME: This isn't correct on the DS101!
+ */
+static void ds101_flash_add(struct mtd_info *mtd) {
+       if (strcmp(mtd->name, "RedBoot config") == 0) {
+               size_t retlen;
+               u_char mac[6];
+
+               /* The MAC is at a known offset... */
+               if (mtd->read(mtd, 0x0FD8, 6, &retlen, mac) == 0 && retlen == 6) {
+                       printk(KERN_INFO "DS101 MAC: %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
+                               mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+                       maclist_add(mac);
+               } else {
+                       printk(KERN_ERR "DS101 MAC: read failed\n");
+               }
+       }
+}
+
+/*
+ * Nothing to do on remove at present.
+ */
+static void ds101_flash_remove(struct mtd_info *mtd) {
+}
+
+static struct mtd_notifier ds101_flash_notifier = {
+       .add = ds101_flash_add,
+       .remove = ds101_flash_remove,
+};
+
+static void __init ds101_init(void)
+{
+       /* The flash has an ethernet MAC embedded in it which we need,
+        * that is all this notifier does.
+        */
+       register_mtd_user(&ds101_flash_notifier);
+
+       ixp4xx_sys_init();
+
+       ds101_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
+       ds101_flash_resource.end =
+               IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
+
+       pm_power_off = ds101_power_off;
+
+       /* 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(&ds101_uart);
+
+       platform_add_devices(ds101_devices, ARRAY_SIZE(ds101_devices));
+
+#ifdef CONFIG_LEDS_CLASS
+       /* We don't care whether or not this works. */
+       (void)platform_device_register(&ds101_leds);
+#endif
+}
+
+/*
+ * DS101 bootstrap may pass in parameters, but we zap the mem
+ * settings to be safe (the box always has 64MByte at 0).  The
+ * passed in command line can override this default, we prepend
+ * to the config'ed default.
+ *
+ * NOTE: the startup sequence is:
+ *     1) Call the machine fixup
+ *     2) Parse the ATAG list, the ATAG_CMDLINE is copied in
+ *        to default_command_line which is the value of *from
+ *     3) Parse the command line in *from (*not*
+ *        default_command_line unless they are the same!)
+ *
+ * Setting mi->nr_banks causes (2) to 'squash' (set to ATAG_NONE)
+ * any ATAG_MEM tags, but mem= command line options cause nr_banks
+ * to be reset to 0 (on the first mem=)
+ */
+static char ds101_command_line[] __initdata =
+       "root=/dev/sda1 rootfstype=ext3 init=/sbin/init "
+       CONFIG_CMDLINE;
+
+static void __init ds101_fixup(struct machine_desc *desc,
+               struct tag *tags, char **cmdline, struct meminfo *mi)
+{
+       /* The DS101 has one bank of 64MByte memory.
+        * NOTE: setting nr_banks != 0 causes kernel/setup.c to remove
+        * the mem tags from the tag list.  We need do nothing here!
+        */
+       mi->nr_banks=1;
+       mi->bank[0].start = 0;
+       mi->bank[0].size = (64*1024*1024);
+       mi->bank[0].node = PHYS_TO_NID(0);
+
+       /* A command line in the ATAG list will override this one,
+        * as is intended.
+        */
+       strlcpy(*cmdline, ds101_command_line, COMMAND_LINE_SIZE);
+}
+
+MACHINE_START(DS101, "Synology DiskStation DS101")
+       /* Maintainer: www.nslu2-linux.org */
+       .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
+       .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC,
+       .boot_params    = 0x00000100,
+       .fixup          = ds101_fixup,
+       .map_io         = ixp4xx_map_io,
+       .init_irq       = ixp4xx_init_irq,
+       .timer          = &ixp4xx_timer,
+       .init_machine   = ds101_init,
+MACHINE_END