Hello,

This is a resend of my dgn3500 support patch.
I've changed the MTD partition table and increased the linux size.
Also fixed a printk that was showing up unwanted...

I´m using the dgn3500 right now as a replacement for my huawai modem. It works 
perfectly.

Signed-off-by: Pieter Voorthuijsen <p.voorthuij...@gmail.com>
---

Index: target/linux/lantiq/files-3.2/arch/mips/lantiq/xway/mach-netgear.c
===================================================================
--- target/linux/lantiq/files-3.2/arch/mips/lantiq/xway/mach-netgear.c  
(revision 31548)
+++ target/linux/lantiq/files-3.2/arch/mips/lantiq/xway/mach-netgear.c  
(working copy)
@@ -4,6 +4,7 @@
  *  by the Free Software Foundation.
  *
  *  Copyright (C) 2010 John Crispin <blo...@openwrt.org>
+ *  Copyright (C) 2012 Pieter Voorthuijsen <p.voorthuij...@gmail.com>
  */

 #include <linux/init.h>
@@ -15,14 +16,52 @@
 #include <linux/phy.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
+#include <linux/spi/spi_gpio.h>
+#include <linux/ath9k_platform.h>
+#include <linux/if_ether.h>
+#include <linux/etherdevice.h>
+#include <linux/kobject.h>
+#include <linux/sysfs.h>

 #include <lantiq_soc.h>
 #include <irq.h>
+#include <dev-gpio-leds.h>
+#include <dev-gpio-buttons.h>
+#include "dev-wifi-athxk.h"

 #include "../machtypes.h"
 #include "devices.h"
 #include "dev-dwc_otg.h"
+#include "pci-ath-fixup.h"
+#include <mtd/mtd-abi.h>
+#include <asm-generic/sizes.h>

+static struct mtd_partition dgn3500_partitions[] = {
+       {
+               .name = "u-boot",
+               .offset = 0,
+               .size = 0x10000,
+               .mask_flags = MTD_WRITEABLE,
+       },
+       {
+               .name = "environment",
+               .offset = 0x10000,
+               .size = 0x10000,
+               .mask_flags = MTD_WRITEABLE,
+       },
+       {
+               .name = "calibration",
+               .offset = 0x20000,
+               .size = 0x10000,
+               .mask_flags = MTD_WRITEABLE,
+       },
+       {
+               .name = "linux",
+               .offset = 0x50000,
+               .size = 0xfa0000,
+       },
+};
+
 static struct ltq_pci_data ltq_pci_data = {
        .clock  = PCI_CLOCK_INT,
        .gpio   = PCI_GNT1 | PCI_REQ1,
@@ -35,49 +74,161 @@
        .mii_mode = PHY_INTERFACE_MODE_MII,
 };

-static struct mtd_partition easy98000_nor_partitions[] =
-{
+static struct gpio_led
+dgn3500_gpio_leds[] __initdata = {
+       { .name = "soc:green:power", .gpio = 34, .active_low = 1, },
+       { .name = "soc:red:power", .gpio = 39, .active_low = 1, },
+       { .name = "soc:orange:wlan", .gpio = 51, .active_low = 1, },
+       { .name = "soc:green:wps", .gpio = 52, .active_low = 1, },
+       { .name = "soc:green:usb", .gpio = 22, .active_low = 1, },
+       { .name = "soc:green:dsl", .gpio = 4, .active_low = 1, },
+       { .name = "soc:green:internet", .gpio = 2, .active_low = 1, },
+};
+
+static struct gpio_keys_button
+dgn3500_gpio_keys[] __initdata = {
        {
-               .name   = "uboot",
-               .offset = 0x0,
-               .size   = 0x40000,
+               .desc = "wps",
+               .type = EV_KEY,
+               .code = BTN_0,
+               .debounce_interval = LTQ_KEYS_DEBOUNCE_INTERVAL,
+               .gpio = 54,
+               .active_low = 1,
        },
        {
-               .name   = "uboot_env",
-               .offset = 0x40000,
-               .size   = 0x40000,      /* 2 sectors for redundant env. */
+               .desc = "reset",
+               .type = EV_KEY,
+               .code = BTN_1,
+               .debounce_interval = LTQ_KEYS_DEBOUNCE_INTERVAL,
+               .gpio = 36,
+               .active_low = 1,
        },
-       {
-               .name   = "linux",
-               .offset = 0x80000,
-               .size   = 0xF80000,     /* map only 16 MiB */
-       },
 };

-static struct flash_platform_data easy98000_spi_flash_platform_data = {
-       .name = "sflash",
-       .parts = easy98000_nor_partitions,
-       .nr_parts = ARRAY_SIZE(easy98000_nor_partitions)
+#define SPI_GPIO_MRST   16
+#define SPI_GPIO_MTSR   17
+#define SPI_GPIO_CLK    18
+#define SPI_GPIO_CS0    10
+
+static struct spi_gpio_platform_data spi_gpio_data = {
+       .sck            = SPI_GPIO_CLK,
+       .mosi           = SPI_GPIO_MTSR,
+       .miso           = SPI_GPIO_MRST,
+       .num_chipselect = 2,
 };

-static struct spi_board_info spi_info __initdata = {
-       .modalias               = "m25p80",
-       .bus_num                = 0,
-       .chip_select            = 3,
-       .max_speed_hz           = 10 * 1000 * 1000,
-       .mode                   = SPI_MODE_3,
-       .platform_data          = &easy98000_spi_flash_platform_data
+static struct platform_device spi_gpio_device = {
+       .name                   = "spi_gpio",
+       .dev.platform_data      = &spi_gpio_data,
 };

-struct ltq_spi_platform_data ltq_spi_data = {
-       .num_chipselect = 4,
+static struct flash_platform_data spi_flash_data = {
+       .name           = "sflash",
+       .parts          = dgn3500_partitions,
+       .nr_parts       = ARRAY_SIZE(dgn3500_partitions),
 };

+static struct spi_board_info spi_flash __initdata = {
+       .modalias               = "m25p80",
+       .bus_num                = 0,
+       .chip_select            = 0,
+       .max_speed_hz           = 10 * 1000 * 1000,
+       .mode                   = SPI_MODE_3,
+       .chip_select            = 0,
+       .controller_data        = (void *) SPI_GPIO_CS0,
+       .platform_data          = &spi_flash_data
+};
+
+static u8 ltq_ethaddr[6] = { 0 };
+
+static int __init setup_ethaddr(char *str)
+{
+       if (!mac_pton(str, ltq_ethaddr))
+               memset(ltq_ethaddr, 0, 6);
+       return 0;
+}
+__setup("ethaddr=", setup_ethaddr);
+
+static u16 dgn3500_eeprom_data[ATH9K_PLAT_EEP_MAX_WORDS] = {0};
+
+static ssize_t ath_eeprom_read(struct file *filp, struct kobject *kobj,
+               struct bin_attribute *attr, char *buf,
+               loff_t offset, size_t count)
+{
+       if (unlikely(offset >= sizeof(dgn3500_eeprom_data)))
+               return 0;
+       if ((offset + count) > sizeof(dgn3500_eeprom_data))
+               count = sizeof(dgn3500_eeprom_data) - offset;
+       if (unlikely(!count))
+               return count;
+
+       memcpy(buf, (char *)(dgn3500_eeprom_data) + offset, count);
+
+       return count;
+}
+
+extern struct ath9k_platform_data ath9k_pdata;
+
+static ssize_t ath_eeprom_write(struct file *filp, struct kobject *kobj,
+               struct bin_attribute *attr, char *buf,
+               loff_t offset, size_t count)
+{
+       int i;
+       char *eeprom_bytes = (char *)dgn3500_eeprom_data;
+
+       if (unlikely(offset >= sizeof(dgn3500_eeprom_data)))
+               return -EFBIG;
+       if ((offset + count) > sizeof(dgn3500_eeprom_data))
+               count = sizeof(dgn3500_eeprom_data) - offset;
+       if (unlikely(!count))
+               return count;
+       if (count % 2)
+               return 0;
+
+       /* The PCI fixup routine requires an endian swap of the calibartion data
+        * stored in flash */
+       for (i = 0; i < count; i += 2) {
+               eeprom_bytes[offset + i + 1] = buf[i];
+               eeprom_bytes[offset + i] = buf[i+1];
+       }
+
+       /* The original data does not contain a checksum. Set the country and
+        * calculate new checksum when all data is received */
+       if ((count + offset) == sizeof(dgn3500_eeprom_data))
+               memcpy(ath9k_pdata.eeprom_data, dgn3500_eeprom_data,
+                               sizeof(ath9k_pdata.eeprom_data));
+
+       return count;
+}
+
+static struct bin_attribute dev_attr_ath_eeprom = {
+       .attr = {
+               .name = "ath_eeprom",
+               .mode = S_IRUGO|S_IWUSR,
+       },
+       .read = ath_eeprom_read,
+       .write = ath_eeprom_write,
+};
+
 static void __init dgn3500_init(void)
 {
+       if (sysfs_create_bin_file(firmware_kobj, &dev_attr_ath_eeprom))
+               printk(KERN_INFO "Failed to create ath eeprom sysfs entry\n");
+       ltq_add_device_gpio_leds(-1, ARRAY_SIZE(dgn3500_gpio_leds),
+                       dgn3500_gpio_leds);
+       ltq_register_gpio_keys_polled(-1, LTQ_KEYS_POLL_INTERVAL,
+                       ARRAY_SIZE(dgn3500_gpio_keys), dgn3500_gpio_keys);
+       platform_device_register(&spi_gpio_device);
        ltq_register_pci(&ltq_pci_data);
+       spi_register_board_info(&spi_flash, 1);
+       if (!is_valid_ether_addr(ltq_ethaddr)) {
+               printk(KERN_INFO "MAC invalid using random\n");
+               random_ether_addr(ltq_ethaddr);
+       }
+       memcpy(&ltq_eth_data.mac.sa_data, ltq_ethaddr, 6);
        ltq_register_etop(&ltq_eth_data);
-       ltq_register_spi(&ltq_spi_data, &spi_info, 1);
+       ltq_register_ath9k(dgn3500_eeprom_data, ltq_ethaddr);
+       ltq_pci_ath_fixup(14, dgn3500_eeprom_data);
        /* The usb power is always enabled, protected by a fuse */
        xway_register_dwc(-1);
 }
Index: target/linux/lantiq/config-3.2
===================================================================
--- target/linux/lantiq/config-3.2      (revision 31548)
+++ target/linux/lantiq/config-3.2      (working copy)
@@ -57,6 +57,11 @@
 CONFIG_HAVE_IRQ_WORK=y
 CONFIG_HAVE_OPROFILE=y
 CONFIG_HAVE_PERF_EVENTS=y
+CONFIG_HOTPLUG_PCI=y
+# CONFIG_HOTPLUG_PCI_CPCI is not set
+CONFIG_HOTPLUG_PCI_FAKE=y
+# CONFIG_HOTPLUG_PCI_SHPC is not set
+CONFIG_HW_HAS_PCI=y
 CONFIG_HW_RANDOM=y
 CONFIG_HZ=250
 # CONFIG_HZ_100 is not set
@@ -71,6 +76,7 @@
 CONFIG_LANTIQ_MACH_EASY98020=y
 CONFIG_LANTIQ_WDT=y
 CONFIG_LEDS_GPIO=y
+CONFIG_M25PXX_USE_FAST_READ=y
 CONFIG_MACH_NO_WESTBRIDGE=y
 # CONFIG_MINIX_FS_NATIVE_ENDIAN is not set
 CONFIG_MIPS=y
@@ -83,11 +89,15 @@
 CONFIG_MTD_CFI_ADV_OPTIONS=y
 CONFIG_MTD_CFI_GEOMETRY=y
 CONFIG_MTD_CMDLINE_PARTS=y
+CONFIG_MTD_M25P80=y
 CONFIG_MTD_LANTIQ=y
 CONFIG_MTD_UIMAGE_SPLIT=y
 CONFIG_NEED_DMA_MAP_STATE=y
 CONFIG_NEED_PER_CPU_KM=y
 CONFIG_PAGEFLAGS_EXTENDED=y
+CONFIG_PCI=y
+CONFIG_PCI_DOMAINS=y
+CONFIG_PCI_LANTIQ_NONE=y
 CONFIG_PERF_USE_VMALLOC=y
 CONFIG_PHYLIB=y
 # CONFIG_PREEMPT_RCU is not set
@@ -99,6 +109,11 @@
 CONFIG_SERIAL_LANTIQ=y
 CONFIG_SWAP_IO_SPACE=y
 CONFIG_SWCONFIG=y
+CONFIG_SPI=y
+CONFIG_SPI_BITBANG=y
+CONFIG_SPI_GPIO=y
+CONFIG_SPI_MASTER=y
+CONFIG_SWAP_IO_SPACE=y
 CONFIG_SYS_HAS_CPU_MIPS32_R1=y
 CONFIG_SYS_HAS_CPU_MIPS32_R2=y
 CONFIG_SYS_HAS_EARLY_PRINTK=y
Index: target/linux/lantiq/base-files/lib/preinit/42_athfix
===================================================================
--- target/linux/lantiq/base-files/lib/preinit/42_athfix        (revision 0)
+++ target/linux/lantiq/base-files/lib/preinit/42_athfix        (revision 0)
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+. /lib/lantiq.sh
+
+init_atheeprom() {
+       local board=$(lantiq_board_name)
+       case $board in
+       "Netgear DGN3500B")
+               echo "- loading eeprom -"
+               dd if=/dev/mtd2 of=/sys/firmware/ath_eeprom bs=1k skip=60 
count=4
+               echo 0 > /sys/bus/pci/slots/0000\:00\:0e.0/power
+               sleep 1
+               echo 1 > /sys/bus/pci/rescan
+               ;;
+       esac
+}
+
+boot_hook_add preinit_essential init_atheeprom
+
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