mirror of https://gitee.com/openkylin/linux.git
732 lines
16 KiB
C
732 lines
16 KiB
C
/*
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* Copyright (C) 2006,2007 Felix Fietkau <nbd@openwrt.org>
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* Copyright (C) 2006,2007 Eugene Konev <ejka@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/module.h>
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#include <linux/delay.h>
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#include <linux/dma-mapping.h>
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#include <linux/platform_device.h>
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#include <linux/mtd/physmap.h>
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#include <linux/serial.h>
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#include <linux/serial_8250.h>
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#include <linux/ioport.h>
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#include <linux/io.h>
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#include <linux/vlynq.h>
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#include <linux/leds.h>
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#include <linux/string.h>
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#include <linux/etherdevice.h>
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#include <linux/phy.h>
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#include <linux/phy_fixed.h>
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#include <linux/gpio.h>
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#include <linux/clk.h>
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#include <asm/addrspace.h>
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#include <asm/mach-ar7/ar7.h>
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#include <asm/mach-ar7/gpio.h>
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#include <asm/mach-ar7/prom.h>
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/*****************************************************************************
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* VLYNQ Bus
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****************************************************************************/
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struct plat_vlynq_data {
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struct plat_vlynq_ops ops;
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int gpio_bit;
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int reset_bit;
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};
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static int vlynq_on(struct vlynq_device *dev)
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{
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int ret;
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struct plat_vlynq_data *pdata = dev->dev.platform_data;
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ret = gpio_request(pdata->gpio_bit, "vlynq");
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if (ret)
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goto out;
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ar7_device_reset(pdata->reset_bit);
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ret = ar7_gpio_disable(pdata->gpio_bit);
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if (ret)
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goto out_enabled;
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ret = ar7_gpio_enable(pdata->gpio_bit);
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if (ret)
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goto out_enabled;
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ret = gpio_direction_output(pdata->gpio_bit, 0);
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if (ret)
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goto out_gpio_enabled;
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msleep(50);
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gpio_set_value(pdata->gpio_bit, 1);
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msleep(50);
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return 0;
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out_gpio_enabled:
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ar7_gpio_disable(pdata->gpio_bit);
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out_enabled:
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ar7_device_disable(pdata->reset_bit);
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gpio_free(pdata->gpio_bit);
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out:
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return ret;
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}
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static void vlynq_off(struct vlynq_device *dev)
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{
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struct plat_vlynq_data *pdata = dev->dev.platform_data;
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ar7_gpio_disable(pdata->gpio_bit);
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gpio_free(pdata->gpio_bit);
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ar7_device_disable(pdata->reset_bit);
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}
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static struct resource vlynq_low_res[] = {
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{
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.name = "regs",
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.flags = IORESOURCE_MEM,
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.start = AR7_REGS_VLYNQ0,
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.end = AR7_REGS_VLYNQ0 + 0xff,
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},
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{
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.name = "irq",
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.flags = IORESOURCE_IRQ,
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.start = 29,
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.end = 29,
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},
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{
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.name = "mem",
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.flags = IORESOURCE_MEM,
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.start = 0x04000000,
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.end = 0x04ffffff,
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},
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{
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.name = "devirq",
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.flags = IORESOURCE_IRQ,
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.start = 80,
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.end = 111,
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},
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};
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static struct resource vlynq_high_res[] = {
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{
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.name = "regs",
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.flags = IORESOURCE_MEM,
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.start = AR7_REGS_VLYNQ1,
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.end = AR7_REGS_VLYNQ1 + 0xff,
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},
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{
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.name = "irq",
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.flags = IORESOURCE_IRQ,
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.start = 33,
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.end = 33,
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},
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{
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.name = "mem",
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.flags = IORESOURCE_MEM,
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.start = 0x0c000000,
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.end = 0x0cffffff,
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},
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{
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.name = "devirq",
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.flags = IORESOURCE_IRQ,
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.start = 112,
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.end = 143,
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},
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};
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static struct plat_vlynq_data vlynq_low_data = {
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.ops = {
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.on = vlynq_on,
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.off = vlynq_off,
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},
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.reset_bit = 20,
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.gpio_bit = 18,
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};
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static struct plat_vlynq_data vlynq_high_data = {
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.ops = {
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.on = vlynq_on,
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.off = vlynq_off,
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},
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.reset_bit = 16,
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.gpio_bit = 19,
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};
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static struct platform_device vlynq_low = {
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.id = 0,
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.name = "vlynq",
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.dev = {
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.platform_data = &vlynq_low_data,
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},
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.resource = vlynq_low_res,
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.num_resources = ARRAY_SIZE(vlynq_low_res),
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};
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static struct platform_device vlynq_high = {
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.id = 1,
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.name = "vlynq",
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.dev = {
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.platform_data = &vlynq_high_data,
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},
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.resource = vlynq_high_res,
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.num_resources = ARRAY_SIZE(vlynq_high_res),
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};
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/*****************************************************************************
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* Flash
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****************************************************************************/
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static struct resource physmap_flash_resource = {
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.name = "mem",
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.flags = IORESOURCE_MEM,
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.start = 0x10000000,
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.end = 0x107fffff,
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};
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static const char *ar7_probe_types[] = { "ar7part", NULL };
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static struct physmap_flash_data physmap_flash_data = {
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.width = 2,
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.part_probe_types = ar7_probe_types,
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};
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static struct platform_device physmap_flash = {
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.name = "physmap-flash",
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.dev = {
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.platform_data = &physmap_flash_data,
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},
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.resource = &physmap_flash_resource,
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.num_resources = 1,
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};
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/*****************************************************************************
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* Ethernet
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****************************************************************************/
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static struct resource cpmac_low_res[] = {
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{
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.name = "regs",
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.flags = IORESOURCE_MEM,
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.start = AR7_REGS_MAC0,
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.end = AR7_REGS_MAC0 + 0x7ff,
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},
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{
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.name = "irq",
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.flags = IORESOURCE_IRQ,
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.start = 27,
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.end = 27,
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},
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};
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static struct resource cpmac_high_res[] = {
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{
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.name = "regs",
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.flags = IORESOURCE_MEM,
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.start = AR7_REGS_MAC1,
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.end = AR7_REGS_MAC1 + 0x7ff,
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},
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{
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.name = "irq",
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.flags = IORESOURCE_IRQ,
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.start = 41,
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.end = 41,
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},
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};
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static struct fixed_phy_status fixed_phy_status __initdata = {
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.link = 1,
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.speed = 100,
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.duplex = 1,
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};
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static struct plat_cpmac_data cpmac_low_data = {
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.reset_bit = 17,
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.power_bit = 20,
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.phy_mask = 0x80000000,
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};
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static struct plat_cpmac_data cpmac_high_data = {
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.reset_bit = 21,
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.power_bit = 22,
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.phy_mask = 0x7fffffff,
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};
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static u64 cpmac_dma_mask = DMA_BIT_MASK(32);
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static struct platform_device cpmac_low = {
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.id = 0,
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.name = "cpmac",
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.dev = {
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.dma_mask = &cpmac_dma_mask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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.platform_data = &cpmac_low_data,
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},
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.resource = cpmac_low_res,
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.num_resources = ARRAY_SIZE(cpmac_low_res),
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};
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static struct platform_device cpmac_high = {
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.id = 1,
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.name = "cpmac",
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.dev = {
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.dma_mask = &cpmac_dma_mask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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.platform_data = &cpmac_high_data,
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},
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.resource = cpmac_high_res,
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.num_resources = ARRAY_SIZE(cpmac_high_res),
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};
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static void __init cpmac_get_mac(int instance, unsigned char *dev_addr)
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{
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char name[5], *mac;
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sprintf(name, "mac%c", 'a' + instance);
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mac = prom_getenv(name);
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if (!mac && instance) {
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sprintf(name, "mac%c", 'a');
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mac = prom_getenv(name);
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}
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if (mac) {
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if (!mac_pton(mac, dev_addr)) {
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pr_warn("cannot parse mac address, using random address\n");
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eth_random_addr(dev_addr);
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}
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} else
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eth_random_addr(dev_addr);
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}
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/*****************************************************************************
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* USB
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****************************************************************************/
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static struct resource usb_res[] = {
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{
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.name = "regs",
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.flags = IORESOURCE_MEM,
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.start = AR7_REGS_USB,
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.end = AR7_REGS_USB + 0xff,
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},
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{
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.name = "irq",
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.flags = IORESOURCE_IRQ,
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.start = 32,
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.end = 32,
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},
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{
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.name = "mem",
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.flags = IORESOURCE_MEM,
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.start = 0x03400000,
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.end = 0x03401fff,
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},
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};
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static struct platform_device ar7_udc = {
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.name = "ar7_udc",
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.resource = usb_res,
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.num_resources = ARRAY_SIZE(usb_res),
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};
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/*****************************************************************************
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* LEDs
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****************************************************************************/
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static struct gpio_led default_leds[] = {
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{
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.name = "status",
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.gpio = 8,
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.active_low = 1,
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},
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};
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static struct gpio_led titan_leds[] = {
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{ .name = "status", .gpio = 8, .active_low = 1, },
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{ .name = "wifi", .gpio = 13, .active_low = 1, },
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};
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static struct gpio_led dsl502t_leds[] = {
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{
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.name = "status",
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.gpio = 9,
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.active_low = 1,
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},
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{
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.name = "ethernet",
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.gpio = 7,
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.active_low = 1,
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},
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{
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.name = "usb",
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.gpio = 12,
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.active_low = 1,
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},
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};
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static struct gpio_led dg834g_leds[] = {
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{
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.name = "ppp",
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.gpio = 6,
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.active_low = 1,
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},
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{
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.name = "status",
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.gpio = 7,
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.active_low = 1,
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},
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{
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.name = "adsl",
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.gpio = 8,
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.active_low = 1,
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},
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{
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.name = "wifi",
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.gpio = 12,
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.active_low = 1,
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},
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{
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.name = "power",
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.gpio = 14,
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.active_low = 1,
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.default_trigger = "default-on",
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},
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};
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static struct gpio_led fb_sl_leds[] = {
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{
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.name = "1",
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.gpio = 7,
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},
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{
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.name = "2",
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.gpio = 13,
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.active_low = 1,
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},
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{
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.name = "3",
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.gpio = 10,
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.active_low = 1,
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},
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{
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.name = "4",
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.gpio = 12,
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.active_low = 1,
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},
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{
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.name = "5",
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.gpio = 9,
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.active_low = 1,
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},
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};
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static struct gpio_led fb_fon_leds[] = {
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{
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.name = "1",
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.gpio = 8,
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},
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{
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.name = "2",
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.gpio = 3,
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.active_low = 1,
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},
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{
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.name = "3",
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.gpio = 5,
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},
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{
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.name = "4",
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.gpio = 4,
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.active_low = 1,
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},
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{
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.name = "5",
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.gpio = 11,
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.active_low = 1,
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},
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};
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static struct gpio_led gt701_leds[] = {
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{
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.name = "inet:green",
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.gpio = 13,
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.active_low = 1,
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},
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{
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.name = "usb",
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.gpio = 12,
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.active_low = 1,
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},
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{
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.name = "inet:red",
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.gpio = 9,
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.active_low = 1,
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},
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{
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.name = "power:red",
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.gpio = 7,
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.active_low = 1,
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},
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{
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.name = "power:green",
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.gpio = 8,
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.active_low = 1,
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.default_trigger = "default-on",
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},
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{
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.name = "ethernet",
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.gpio = 10,
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.active_low = 1,
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},
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};
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static struct gpio_led_platform_data ar7_led_data;
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static struct platform_device ar7_gpio_leds = {
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.name = "leds-gpio",
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.dev = {
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.platform_data = &ar7_led_data,
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}
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};
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static void __init detect_leds(void)
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{
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char *prid, *usb_prod;
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/* Default LEDs */
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ar7_led_data.num_leds = ARRAY_SIZE(default_leds);
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ar7_led_data.leds = default_leds;
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/* FIXME: the whole thing is unreliable */
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prid = prom_getenv("ProductID");
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usb_prod = prom_getenv("usb_prod");
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/* If we can't get the product id from PROM, use the default LEDs */
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if (!prid)
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return;
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if (strstr(prid, "Fritz_Box_FON")) {
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ar7_led_data.num_leds = ARRAY_SIZE(fb_fon_leds);
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ar7_led_data.leds = fb_fon_leds;
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} else if (strstr(prid, "Fritz_Box_")) {
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ar7_led_data.num_leds = ARRAY_SIZE(fb_sl_leds);
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ar7_led_data.leds = fb_sl_leds;
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} else if ((!strcmp(prid, "AR7RD") || !strcmp(prid, "AR7DB"))
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&& usb_prod != NULL && strstr(usb_prod, "DSL-502T")) {
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ar7_led_data.num_leds = ARRAY_SIZE(dsl502t_leds);
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ar7_led_data.leds = dsl502t_leds;
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} else if (strstr(prid, "DG834")) {
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ar7_led_data.num_leds = ARRAY_SIZE(dg834g_leds);
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ar7_led_data.leds = dg834g_leds;
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} else if (strstr(prid, "CYWM") || strstr(prid, "CYWL")) {
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ar7_led_data.num_leds = ARRAY_SIZE(titan_leds);
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ar7_led_data.leds = titan_leds;
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} else if (strstr(prid, "GT701")) {
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ar7_led_data.num_leds = ARRAY_SIZE(gt701_leds);
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ar7_led_data.leds = gt701_leds;
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}
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}
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/*****************************************************************************
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* Watchdog
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****************************************************************************/
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static struct resource ar7_wdt_res = {
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.name = "regs",
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.flags = IORESOURCE_MEM,
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.start = -1, /* Filled at runtime */
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.end = -1, /* Filled at runtime */
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};
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static struct platform_device ar7_wdt = {
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.name = "ar7_wdt",
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.resource = &ar7_wdt_res,
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.num_resources = 1,
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};
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/*****************************************************************************
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* Init
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****************************************************************************/
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static int __init ar7_register_uarts(void)
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{
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#ifdef CONFIG_SERIAL_8250
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static struct uart_port uart_port __initdata;
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struct clk *bus_clk;
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int res;
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memset(&uart_port, 0, sizeof(struct uart_port));
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bus_clk = clk_get(NULL, "bus");
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if (IS_ERR(bus_clk))
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panic("unable to get bus clk");
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uart_port.type = PORT_AR7;
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uart_port.uartclk = clk_get_rate(bus_clk) / 2;
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uart_port.iotype = UPIO_MEM32;
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uart_port.regshift = 2;
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uart_port.line = 0;
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uart_port.irq = AR7_IRQ_UART0;
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uart_port.mapbase = AR7_REGS_UART0;
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uart_port.membase = ioremap(uart_port.mapbase, 256);
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res = early_serial_setup(&uart_port);
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if (res)
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return res;
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/* Only TNETD73xx have a second serial port */
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if (ar7_has_second_uart()) {
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uart_port.line = 1;
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uart_port.irq = AR7_IRQ_UART1;
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uart_port.mapbase = UR8_REGS_UART1;
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uart_port.membase = ioremap(uart_port.mapbase, 256);
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res = early_serial_setup(&uart_port);
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if (res)
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return res;
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}
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#endif
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return 0;
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}
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static void __init titan_fixup_devices(void)
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{
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/* Set vlynq0 data */
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vlynq_low_data.reset_bit = 15;
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vlynq_low_data.gpio_bit = 14;
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/* Set vlynq1 data */
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vlynq_high_data.reset_bit = 16;
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vlynq_high_data.gpio_bit = 7;
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/* Set vlynq0 resources */
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vlynq_low_res[0].start = TITAN_REGS_VLYNQ0;
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vlynq_low_res[0].end = TITAN_REGS_VLYNQ0 + 0xff;
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vlynq_low_res[1].start = 33;
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vlynq_low_res[1].end = 33;
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vlynq_low_res[2].start = 0x0c000000;
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vlynq_low_res[2].end = 0x0fffffff;
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vlynq_low_res[3].start = 80;
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vlynq_low_res[3].end = 111;
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/* Set vlynq1 resources */
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vlynq_high_res[0].start = TITAN_REGS_VLYNQ1;
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vlynq_high_res[0].end = TITAN_REGS_VLYNQ1 + 0xff;
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vlynq_high_res[1].start = 34;
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vlynq_high_res[1].end = 34;
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vlynq_high_res[2].start = 0x40000000;
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vlynq_high_res[2].end = 0x43ffffff;
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vlynq_high_res[3].start = 112;
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vlynq_high_res[3].end = 143;
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/* Set cpmac0 data */
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cpmac_low_data.phy_mask = 0x40000000;
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/* Set cpmac1 data */
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cpmac_high_data.phy_mask = 0x80000000;
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/* Set cpmac0 resources */
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cpmac_low_res[0].start = TITAN_REGS_MAC0;
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cpmac_low_res[0].end = TITAN_REGS_MAC0 + 0x7ff;
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/* Set cpmac1 resources */
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cpmac_high_res[0].start = TITAN_REGS_MAC1;
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cpmac_high_res[0].end = TITAN_REGS_MAC1 + 0x7ff;
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}
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static int __init ar7_register_devices(void)
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{
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void __iomem *bootcr;
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u32 val;
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int res;
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res = ar7_register_uarts();
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if (res)
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pr_err("unable to setup uart(s): %d\n", res);
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res = platform_device_register(&physmap_flash);
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if (res)
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pr_warn("unable to register physmap-flash: %d\n", res);
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if (ar7_is_titan())
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titan_fixup_devices();
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ar7_device_disable(vlynq_low_data.reset_bit);
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res = platform_device_register(&vlynq_low);
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if (res)
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pr_warn("unable to register vlynq-low: %d\n", res);
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if (ar7_has_high_vlynq()) {
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ar7_device_disable(vlynq_high_data.reset_bit);
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res = platform_device_register(&vlynq_high);
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if (res)
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pr_warn("unable to register vlynq-high: %d\n", res);
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}
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if (ar7_has_high_cpmac()) {
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res = fixed_phy_add(PHY_POLL, cpmac_high.id, &fixed_phy_status);
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if (!res) {
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cpmac_get_mac(1, cpmac_high_data.dev_addr);
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res = platform_device_register(&cpmac_high);
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if (res)
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pr_warn("unable to register cpmac-high: %d\n",
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res);
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} else
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pr_warn("unable to add cpmac-high phy: %d\n", res);
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} else
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cpmac_low_data.phy_mask = 0xffffffff;
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res = fixed_phy_add(PHY_POLL, cpmac_low.id, &fixed_phy_status);
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if (!res) {
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cpmac_get_mac(0, cpmac_low_data.dev_addr);
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res = platform_device_register(&cpmac_low);
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if (res)
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pr_warn("unable to register cpmac-low: %d\n", res);
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} else
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pr_warn("unable to add cpmac-low phy: %d\n", res);
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detect_leds();
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res = platform_device_register(&ar7_gpio_leds);
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if (res)
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pr_warn("unable to register leds: %d\n", res);
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res = platform_device_register(&ar7_udc);
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if (res)
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pr_warn("unable to register usb slave: %d\n", res);
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/* Register watchdog only if enabled in hardware */
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bootcr = ioremap_nocache(AR7_REGS_DCL, 4);
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val = readl(bootcr);
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iounmap(bootcr);
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if (val & AR7_WDT_HW_ENA) {
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if (ar7_has_high_vlynq())
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ar7_wdt_res.start = UR8_REGS_WDT;
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else
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ar7_wdt_res.start = AR7_REGS_WDT;
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ar7_wdt_res.end = ar7_wdt_res.start + 0x20;
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res = platform_device_register(&ar7_wdt);
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if (res)
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pr_warn("unable to register watchdog: %d\n", res);
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}
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return 0;
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}
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device_initcall(ar7_register_devices);
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