Florian Fainelli
15 years ago
parent
1d8823ae61
commit
6d12bc20ce
@ -1,16 +0,0 @@ |
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#ifndef _ASM_X86_MACH_RDC321X_GPIO_H |
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#define _ASM_X86_MACH_RDC321X_GPIO_H |
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#include <linux/kernel.h> |
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#define gpio_to_irq(gpio) NULL |
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#define gpio_get_value __gpio_get_value |
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#define gpio_set_value __gpio_set_value |
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#define gpio_cansleep __gpio_cansleep |
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/* For cansleep */ |
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#include <asm-generic/gpio.h> |
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#endif /* _ASM_X86_MACH_RDC321X_GPIO_H */ |
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@ -1,5 +0,0 @@ |
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#
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# Makefile for the RDC321x specific parts of the kernel
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#
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obj-$(CONFIG_X86_RDC321X) := gpio.o platform.o
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@ -1,158 +0,0 @@ |
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/*
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* GPIO support for RDC SoC R3210/R8610 |
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* |
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* Copyright (C) 2007, Florian Fainelli <florian@openwrt.org> |
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* Copyright (C) 2008, Volker Weiss <dev@tintuc.de> |
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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., 675 Mass Ave, Cambridge, MA 02139, USA. |
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* |
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*/ |
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#include <linux/spinlock.h> |
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#include <linux/io.h> |
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#include <linux/types.h> |
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#include <linux/module.h> |
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#include <linux/gpio.h> |
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#include <asm/rdc321x_gpio.h> |
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#include <asm/rdc321x_defs.h> |
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/* spin lock to protect our private copy of GPIO data register plus
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the access to PCI conf registers. */ |
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static DEFINE_SPINLOCK(gpio_lock); |
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/* copy of GPIO data registers */ |
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static u32 gpio_data_reg1; |
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static u32 gpio_data_reg2; |
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static inline void rdc321x_conf_write(unsigned addr, u32 value) |
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{ |
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outl((1 << 31) | (7 << 11) | addr, RDC3210_CFGREG_ADDR); |
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outl(value, RDC3210_CFGREG_DATA); |
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} |
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static inline void rdc321x_conf_or(unsigned addr, u32 value) |
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{ |
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outl((1 << 31) | (7 << 11) | addr, RDC3210_CFGREG_ADDR); |
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value |= inl(RDC3210_CFGREG_DATA); |
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outl(value, RDC3210_CFGREG_DATA); |
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} |
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static inline u32 rdc321x_conf_read(unsigned addr) |
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{ |
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outl((1 << 31) | (7 << 11) | addr, RDC3210_CFGREG_ADDR); |
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return inl(RDC3210_CFGREG_DATA); |
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} |
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/* configure pin as GPIO */ |
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static void rdc321x_configure_gpio(unsigned gpio) |
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{ |
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unsigned long flags; |
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spin_lock_irqsave(&gpio_lock, flags); |
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rdc321x_conf_or(gpio < 32 |
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? RDC321X_GPIO_CTRL_REG1 : RDC321X_GPIO_CTRL_REG2, |
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1 << (gpio & 0x1f)); |
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spin_unlock_irqrestore(&gpio_lock, flags); |
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} |
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/* read GPIO pin */ |
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static int rdc_gpio_get_value(struct gpio_chip *chip, unsigned gpio) |
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{ |
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u32 reg; |
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unsigned long flags; |
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spin_lock_irqsave(&gpio_lock, flags); |
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reg = rdc321x_conf_read(gpio < 32 |
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? RDC321X_GPIO_DATA_REG1 : RDC321X_GPIO_DATA_REG2); |
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spin_unlock_irqrestore(&gpio_lock, flags); |
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return (1 << (gpio & 0x1f)) & reg ? 1 : 0; |
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} |
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/* set GPIO pin to value */ |
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static void rdc_gpio_set_value(struct gpio_chip *chip, |
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unsigned gpio, int value) |
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{ |
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unsigned long flags; |
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u32 reg; |
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reg = 1 << (gpio & 0x1f); |
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if (gpio < 32) { |
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spin_lock_irqsave(&gpio_lock, flags); |
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if (value) |
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gpio_data_reg1 |= reg; |
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else |
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gpio_data_reg1 &= ~reg; |
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rdc321x_conf_write(RDC321X_GPIO_DATA_REG1, gpio_data_reg1); |
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spin_unlock_irqrestore(&gpio_lock, flags); |
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} else { |
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spin_lock_irqsave(&gpio_lock, flags); |
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if (value) |
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gpio_data_reg2 |= reg; |
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else |
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gpio_data_reg2 &= ~reg; |
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rdc321x_conf_write(RDC321X_GPIO_DATA_REG2, gpio_data_reg2); |
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spin_unlock_irqrestore(&gpio_lock, flags); |
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} |
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} |
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/* configure GPIO pin as input */ |
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static int rdc_gpio_direction_input(struct gpio_chip *chip, unsigned gpio) |
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{ |
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rdc321x_configure_gpio(gpio); |
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return 0; |
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} |
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/* configure GPIO pin as output and set value */ |
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static int rdc_gpio_direction_output(struct gpio_chip *chip, |
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unsigned gpio, int value) |
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{ |
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rdc321x_configure_gpio(gpio); |
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gpio_set_value(gpio, value); |
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return 0; |
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} |
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static struct gpio_chip rdc321x_gpio_chip = { |
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.label = "rdc321x-gpio", |
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.direction_input = rdc_gpio_direction_input, |
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.direction_output = rdc_gpio_direction_output, |
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.get = rdc_gpio_get_value, |
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.set = rdc_gpio_set_value, |
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.base = 0, |
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.ngpio = RDC321X_MAX_GPIO, |
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}; |
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/* initially setup the 2 copies of the gpio data registers.
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This function is called before the platform setup code. */ |
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static int __init rdc321x_gpio_setup(void) |
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{ |
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/* this might not be, what others (BIOS, bootloader, etc.)
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wrote to these registers before, but it's a good guess. Still |
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better than just using 0xffffffff. */ |
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gpio_data_reg1 = rdc321x_conf_read(RDC321X_GPIO_DATA_REG1); |
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gpio_data_reg2 = rdc321x_conf_read(RDC321X_GPIO_DATA_REG2); |
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printk(KERN_INFO "rdc321x: registering %d GPIOs\n", rdc321x_gpio_chip.ngpio); |
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return gpiochip_add(&rdc321x_gpio_chip); |
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} |
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arch_initcall(rdc321x_gpio_setup); |
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@ -1,290 +0,0 @@ |
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/*
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* Generic RDC321x platform devices |
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* |
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* Copyright (C) 2007-2009 OpenWrt.org |
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* Copyright (C) 2007 Florian Fainelli <florian@openwrt.org> |
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* Copyright (C) 2008-2009 Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us> |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (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 |
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
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* Boston, MA 02110-1301, USA. |
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* |
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*/ |
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#include <linux/init.h> |
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#include <linux/kernel.h> |
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#include <linux/list.h> |
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#include <linux/device.h> |
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#include <linux/platform_device.h> |
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#include <linux/version.h> |
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#include <linux/leds.h> |
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#include <linux/gpio_keys.h> |
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#include <linux/input.h> |
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#include <linux/mtd/map.h> |
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#include <linux/mtd/mtd.h> |
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#include <linux/mtd/physmap.h> |
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#include <linux/root_dev.h> |
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#include <asm/rdc321x_gpio.h> |
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/* Flash */ |
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#ifdef CONFIG_MTD_R8610 |
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#define CONFIG_MTD_RDC3210 1 |
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#elif defined CONFIG_MTD_RDC3210 |
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static struct resource rdc_flash_resource[] = { |
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[0] = { |
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.start = (u32)-CONFIG_MTD_RDC3210_SIZE, |
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.end = (u32)-1, |
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.flags = IORESOURCE_MEM, |
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}, |
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}; |
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static struct platform_device rdc_flash_device = { |
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.name = "rdc321x-flash", |
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.id = -1, |
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.num_resources = ARRAY_SIZE(rdc_flash_resource), |
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.resource = rdc_flash_resource, |
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}; |
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#else |
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static struct mtd_partition rdc_flash_parts[15]; |
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static struct resource rdc_flash_resource = { |
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.end = (u32)-1, |
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.flags = IORESOURCE_MEM, |
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}; |
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static struct physmap_flash_data rdc_flash_data = { |
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.parts = rdc_flash_parts, |
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}; |
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static struct platform_device rdc_flash_device = { |
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.name = "physmap-flash", |
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.id = -1, |
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.resource = &rdc_flash_resource, |
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.num_resources = 1, |
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.dev.platform_data = &rdc_flash_data, |
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}; |
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#endif |
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/* LEDS */ |
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static struct gpio_led default_leds[] = { |
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{ .name = "rdc321x:dmz", .gpio = 1, .active_low = 1}, |
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}; |
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static struct gpio_led_platform_data rdc321x_led_data = { |
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.num_leds = ARRAY_SIZE(default_leds), |
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.leds = default_leds, |
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}; |
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static struct platform_device rdc321x_leds = { |
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.name = "leds-gpio", |
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.id = -1, |
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.dev = { |
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.platform_data = &rdc321x_led_data, |
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} |
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}; |
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/* Watchdog */ |
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static struct platform_device rdc321x_wdt = { |
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.name = "rdc321x-wdt", |
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.id = -1, |
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.num_resources = 0, |
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}; |
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/* Button */ |
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static struct gpio_keys_button rdc321x_gpio_btn[] = { |
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{ |
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.gpio = 0, |
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.code = BTN_0, |
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.desc = "Reset", |
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.active_low = 1, |
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} |
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}; |
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static struct gpio_keys_platform_data rdc321x_gpio_btn_data = { |
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.buttons = rdc321x_gpio_btn, |
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.nbuttons = ARRAY_SIZE(rdc321x_gpio_btn), |
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}; |
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static struct platform_device rdc321x_button = { |
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.name = "gpio-keys", |
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.id = -1, |
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.dev = { |
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.platform_data = &rdc321x_gpio_btn_data, |
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} |
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}; |
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static struct platform_device *rdc321x_devs[] = { |
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&rdc_flash_device, |
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&rdc321x_leds, |
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&rdc321x_wdt, |
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&rdc321x_button, |
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}; |
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static int probe_flash_start(struct map_info *the_map) |
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{ |
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struct mtd_info *res; |
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the_map->virt = ioremap(the_map->phys, the_map->size); |
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if (the_map->virt == NULL) |
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return 1; |
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for (the_map->bankwidth = 32; the_map->bankwidth; the_map->bankwidth |
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>>= 1) { |
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res = do_map_probe("cfi_probe", the_map); |
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if (res == NULL) |
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res = do_map_probe("jedec_probe", the_map); |
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if (res != NULL) |
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break; |
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} |
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iounmap(the_map->virt); |
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if (res != NULL) |
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the_map->phys = (u32)-(s32)(the_map->size = res->size); |
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return res == NULL; |
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} |
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static int __init rdc_board_setup(void) |
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{ |
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#ifndef CONFIG_MTD_RDC3210 |
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struct map_info rdc_map_info; |
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u32 the_header[8]; |
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ROOT_DEV = 0; |
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rdc_map_info.name = rdc_flash_device.name; |
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rdc_map_info.size = 0x800000; //8MB
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rdc_map_info.phys = (u32) -rdc_map_info.size; |
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rdc_map_info.bankwidth = 2; |
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rdc_map_info.set_vpp = NULL; |
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simple_map_init(&rdc_map_info); |
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while (probe_flash_start(&rdc_map_info)) { |
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if (rdc_map_info.size /= 2 < 0x100000) //1MB
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panic("Could not find start of flash!"); |
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rdc_map_info.phys = (u32) -rdc_map_info.size; |
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} |
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rdc_flash_resource.start = rdc_map_info.phys; |
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rdc_flash_data.width = rdc_map_info.bankwidth; |
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rdc_map_info.virt = ioremap_nocache(rdc_map_info.phys, 0x10); |
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if (rdc_map_info.virt == NULL) |
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panic("Could not ioremap to read device magic!"); |
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the_header[0] = ((u32 *)rdc_map_info.virt)[0]; |
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the_header[1] = ((u32 *)rdc_map_info.virt)[1]; |
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the_header[2] = ((u32 *)rdc_map_info.virt)[2]; |
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the_header[3] = ((u32 *)rdc_map_info.virt)[3]; |
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iounmap(rdc_map_info.virt); |
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rdc_map_info.virt = ioremap_nocache(rdc_map_info.phys + 0x8000, 0x10); |
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if (rdc_map_info.virt == NULL) |
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panic("Could not ioremap to read device magic!"); |
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the_header[4] = ((u32 *)rdc_map_info.virt)[0]; |
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the_header[5] = ((u32 *)rdc_map_info.virt)[1]; |
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the_header[6] = ((u32 *)rdc_map_info.virt)[2]; |
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the_header[7] = ((u32 *)rdc_map_info.virt)[3]; |
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iounmap(rdc_map_info.virt); |
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if (!memcmp(the_header, "GMTK", 4)) { /* Gemtek */ |
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/* TODO */ |
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} else if (!memcmp(the_header + 4, "CSYS", 4)) { /* Sitecom */ |
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rdc_flash_parts[0].name = "system"; |
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rdc_flash_parts[0].offset = 0; |
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rdc_flash_parts[0].size = rdc_map_info.size - 0x10000; |
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rdc_flash_parts[1].name = "config"; |
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rdc_flash_parts[1].offset = 0; |
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rdc_flash_parts[1].size = 0x8000; |
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rdc_flash_parts[2].name = "magic"; |
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rdc_flash_parts[2].offset = 0x8000; |
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rdc_flash_parts[2].size = 0x14; |
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rdc_flash_parts[3].name = "kernel"; |
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rdc_flash_parts[3].offset = 0x8014; |
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rdc_flash_parts[3].size = the_header[5]; |
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rdc_flash_parts[4].name = "rootfs"; |
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rdc_flash_parts[4].offset = 0x8014 + the_header[5]; |
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rdc_flash_parts[4].size = rdc_flash_parts[0].size - rdc_flash_parts[4].offset; |
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rdc_flash_parts[5].name = "bootloader"; |
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rdc_flash_parts[5].offset = rdc_flash_parts[0].size; |
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rdc_flash_parts[5].size = 0x10000; |
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rdc_flash_data.nr_parts = 6; |
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} else if (!memcmp(((u8 *)the_header) + 14, "Li", 2)) { /* AMIT */ |
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rdc_flash_parts[0].name = "kernel_parthdr"; |
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rdc_flash_parts[0].offset = 0; |
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rdc_flash_parts[0].size = 0x10; |
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rdc_flash_parts[1].name = "kernel"; |
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rdc_flash_parts[1].offset = 0x10; |
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rdc_flash_parts[1].size = 0xffff0; |
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rdc_flash_parts[2].name = "rootfs_parthdr"; |
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rdc_flash_parts[2].offset = 0x100000; |
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rdc_flash_parts[2].size = 0x10; |
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rdc_flash_parts[3].name = "rootfs"; |
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rdc_flash_parts[3].offset = 0x100010; |
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rdc_flash_parts[3].size = rdc_map_info.size - 0x160010; |
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rdc_flash_parts[4].name = "config_parthdr"; |
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rdc_flash_parts[4].offset = rdc_map_info.size - 0x60000; |
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rdc_flash_parts[4].size = 0x10; |
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rdc_flash_parts[5].name = "config"; |
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rdc_flash_parts[5].offset = rdc_map_info.size - 0x5fff0; |
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rdc_flash_parts[5].size = 0xfff0; |
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rdc_flash_parts[6].name = "recoveryfs_parthdr"; |
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rdc_flash_parts[6].offset = rdc_map_info.size - 0x50000; |
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rdc_flash_parts[6].size = 0x10; |
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rdc_flash_parts[7].name = "recoveryfs"; |
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rdc_flash_parts[7].offset = rdc_map_info.size - 0x4fff0; |
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rdc_flash_parts[7].size = 0x3fff0; |
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rdc_flash_parts[8].name = "recovery_parthdr"; |
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rdc_flash_parts[8].offset = rdc_map_info.size - 0x10000; |
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rdc_flash_parts[8].size = 0x10; |
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rdc_flash_parts[9].name = "recovery"; |
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rdc_flash_parts[9].offset = rdc_map_info.size - 0xfff0; |
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rdc_flash_parts[9].size = 0x7ff0; |
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rdc_flash_parts[10].name = "productinfo_parthdr"; |
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rdc_flash_parts[10].offset = rdc_map_info.size - 0x8000; |
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rdc_flash_parts[10].size = 0x10; |
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rdc_flash_parts[11].name = "productinfo"; |
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rdc_flash_parts[11].offset = rdc_map_info.size - 0x7ff0; |
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rdc_flash_parts[11].size = 0x1ff0; |
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rdc_flash_parts[12].name = "bootloader_parthdr"; |
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rdc_flash_parts[12].offset = rdc_map_info.size - 0x6000; |
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rdc_flash_parts[12].size = 0x10; |
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rdc_flash_parts[13].name = "bootloader"; |
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rdc_flash_parts[13].offset = rdc_map_info.size - 0x5ff0; |
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rdc_flash_parts[13].size = 0x5ff0; |
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rdc_flash_parts[14].name = "everything"; |
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rdc_flash_parts[14].offset = 0; |
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rdc_flash_parts[14].size = rdc_map_info.size; |
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rdc_flash_data.nr_parts = 15; |
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} else { /* ZyXEL */ |
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rdc_flash_parts[0].name = "kernel"; |
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rdc_flash_parts[0].offset = 0; |
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rdc_flash_parts[0].size = 0x100000; |
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rdc_flash_parts[1].name = "rootfs"; |
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rdc_flash_parts[1].offset = 0x100000; |
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rdc_flash_parts[1].size = rdc_map_info.size - 0x140000; |
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rdc_flash_parts[2].name = "linux"; |
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rdc_flash_parts[2].offset = 0; |
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rdc_flash_parts[2].size = rdc_map_info.size - 0x40000; |
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rdc_flash_parts[3].name = "config"; |
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rdc_flash_parts[3].offset = rdc_map_info.size - 0x40000; |
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rdc_flash_parts[3].size = 0x10000; |
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rdc_flash_parts[4].name = "productinfo"; |
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rdc_flash_parts[4].offset = rdc_map_info.size - 0x30000; |
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rdc_flash_parts[4].size = 0x10000; |
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rdc_flash_parts[5].name = "bootloader"; |
||||
rdc_flash_parts[5].offset = rdc_map_info.size - 0x20000; |
||||
rdc_flash_parts[5].size = 0x20000; |
||||
rdc_flash_data.nr_parts = 6; |
||||
} |
||||
#endif |
||||
return platform_add_devices(rdc321x_devs, ARRAY_SIZE(rdc321x_devs)); |
||||
} |
||||
|
||||
#ifdef CONFIG_MTD_RDC3210 |
||||
arch_initcall(rdc_board_setup); |
||||
#else |
||||
late_initcall(rdc_board_setup); |
||||
#endif |
||||
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Reference in new issue