mirror of https://github.com/hak5/openwrt.git
Florian Fainelli
parent
1b491bcfbb
commit
dca8af905f
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@ -0,0 +1,59 @@
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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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extern int rdc_gpio_get_value(unsigned gpio);
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extern void rdc_gpio_set_value(unsigned gpio, int value);
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extern int rdc_gpio_direction_input(unsigned gpio);
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extern int rdc_gpio_direction_output(unsigned gpio, int value);
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extern int rdc_gpio_request(unsigned gpio, const char *label);
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extern void rdc_gpio_free(unsigned gpio);
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/* Wrappers for the arch-neutral GPIO API */
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static inline int gpio_request(unsigned gpio, const char *label)
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{
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return rdc_gpio_request(gpio, label);
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}
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static inline void gpio_free(unsigned gpio)
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{
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might_sleep();
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rdc_gpio_free(gpio);
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}
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static inline int gpio_direction_input(unsigned gpio)
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{
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return rdc_gpio_direction_input(gpio);
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}
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static inline int gpio_direction_output(unsigned gpio, int value)
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{
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return rdc_gpio_direction_output(gpio, value);
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}
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static inline int gpio_get_value(unsigned gpio)
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{
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return rdc_gpio_get_value(gpio);
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}
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static inline void gpio_set_value(unsigned gpio, int value)
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{
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rdc_gpio_set_value(gpio, value);
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}
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static inline int gpio_to_irq(unsigned gpio)
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{
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return gpio;
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}
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static inline int irq_to_gpio(unsigned irq)
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{
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return irq;
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}
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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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@ -0,0 +1,12 @@
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#define PFX "rdc321x: "
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/* General purpose configuration and data registers */
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#define RDC3210_CFGREG_ADDR 0x0CF8
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#define RDC3210_CFGREG_DATA 0x0CFC
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#define RDC321X_GPIO_CTRL_REG1 0x48
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#define RDC321X_GPIO_CTRL_REG2 0x84
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#define RDC321X_GPIO_DATA_REG1 0x4c
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#define RDC321X_GPIO_DATA_REG2 0x88
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#define RDC321X_MAX_GPIO 58
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@ -0,0 +1,5 @@
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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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/*
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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 <asm/mach-rdc321x/gpio.h>
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#include <asm/mach-rdc321x/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 u32 gpio_request_data[2];
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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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/* 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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return 0;
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}
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/* determine, if gpio number is valid */
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static inline int rdc321x_is_gpio(unsigned gpio)
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{
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return gpio <= RDC321X_MAX_GPIO;
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}
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/* request GPIO */
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int rdc_gpio_request(unsigned gpio, const char *label)
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{
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unsigned long flags;
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if (!rdc321x_is_gpio(gpio))
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return -EINVAL;
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spin_lock_irqsave(&gpio_lock, flags);
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if (gpio_request_data[(gpio & 0x20) ? 1 : 0] & (1 << (gpio & 0x1f)))
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goto inuse;
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gpio_request_data[(gpio & 0x20) ? 1 : 0] |= (1 << (gpio & 0x1f));
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spin_unlock_irqrestore(&gpio_lock, flags);
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return 0;
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inuse:
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spin_unlock_irqrestore(&gpio_lock, flags);
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return -EINVAL;
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}
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EXPORT_SYMBOL(rdc_gpio_request);
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/* release previously-claimed GPIO */
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void rdc_gpio_free(unsigned gpio)
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{
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unsigned long flags;
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if (!rdc321x_is_gpio(gpio))
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return;
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spin_lock_irqsave(&gpio_lock, flags);
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gpio_request_data[(gpio & 0x20) ? 1 : 0] &= ~(1 << (gpio & 0x1f));
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spin_unlock_irqrestore(&gpio_lock, flags);
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}
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EXPORT_SYMBOL(rdc_gpio_free);
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/* read GPIO pin */
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int rdc_gpio_get_value(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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EXPORT_SYMBOL(rdc_gpio_get_value);
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/* set GPIO pin to value */
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void rdc_gpio_set_value(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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EXPORT_SYMBOL(rdc_gpio_set_value);
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/* configure GPIO pin as input */
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int rdc_gpio_direction_input(unsigned gpio)
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{
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if (!rdc321x_is_gpio(gpio))
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return -EINVAL;
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rdc321x_configure_gpio(gpio);
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return 0;
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}
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EXPORT_SYMBOL(rdc_gpio_direction_input);
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/* configure GPIO pin as output and set value */
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int rdc_gpio_direction_output(unsigned gpio, int value)
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{
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if (!rdc321x_is_gpio(gpio))
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return -EINVAL;
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gpio_set_value(gpio, value);
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rdc321x_configure_gpio(gpio);
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return 0;
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}
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EXPORT_SYMBOL(rdc_gpio_direction_output);
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arch_initcall(rdc321x_gpio_setup);
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@ -0,0 +1,264 @@
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/*
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* Generic RDC321x platform devices
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*
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* Copyright (C) 2007-2008 OpenWrt.org
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* Copyright (C) 2007 Florian Fainelli <florian@openwrt.org>
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* Copyright (C) 2008 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/mach-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, },
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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[4];
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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.phys = 0xff000000;
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rdc_map_info.size = 0x1000000;
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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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rdc_map_info.phys++;
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if (--rdc_map_info.size)
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panic("Could not find start of flash!");
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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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if (!memcmp(the_header, "GMTK", 4)) { /* Gemtek */
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/* TODO */
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} else if (!memcmp(the_header, "CSYS", 4)) { /* Sitecom */
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/* TODO */
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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";
|
||||
rdc_flash_parts[1].offset = 0x10;
|
||||
rdc_flash_parts[1].size = 0xffff0;
|
||||
rdc_flash_parts[2].name = "rootfs_parthdr";
|
||||
rdc_flash_parts[2].offset = 0x100000;
|
||||
rdc_flash_parts[2].size = 0x10;
|
||||
rdc_flash_parts[3].name = "rootfs";
|
||||
rdc_flash_parts[3].offset = 0x100010;
|
||||
rdc_flash_parts[3].size = rdc_map_info.size - 0x160010;
|
||||
rdc_flash_parts[4].name = "config_parthdr";
|
||||
rdc_flash_parts[4].offset = rdc_map_info.size - 0x60000;
|
||||
rdc_flash_parts[4].size = 0x10;
|
||||
rdc_flash_parts[5].name = "config";
|
||||
rdc_flash_parts[5].offset = rdc_map_info.size - 0x5fff0;
|
||||
rdc_flash_parts[5].size = 0xfff0;
|
||||
rdc_flash_parts[6].name = "recoveryfs_parthdr";
|
||||
rdc_flash_parts[6].offset = rdc_map_info.size - 0x50000;
|
||||
rdc_flash_parts[6].size = 0x10;
|
||||
rdc_flash_parts[7].name = "recoveryfs";
|
||||
rdc_flash_parts[7].offset = rdc_map_info.size - 0x4fff0;
|
||||
rdc_flash_parts[7].size = 0x3fff0;
|
||||
rdc_flash_parts[8].name = "recovery_parthdr";
|
||||
rdc_flash_parts[8].offset = rdc_map_info.size - 0x10000;
|
||||
rdc_flash_parts[8].size = 0x10;
|
||||
rdc_flash_parts[9].name = "recovery";
|
||||
rdc_flash_parts[9].offset = rdc_map_info.size - 0xfff0;
|
||||
rdc_flash_parts[9].size = 0x7ff0;
|
||||
rdc_flash_parts[10].name = "productinfo_parthdr";
|
||||
rdc_flash_parts[10].offset = rdc_map_info.size - 0x8000;
|
||||
rdc_flash_parts[10].size = 0x10;
|
||||
rdc_flash_parts[11].name = "productinfo";
|
||||
rdc_flash_parts[11].offset = rdc_map_info.size - 0x7ff0;
|
||||
rdc_flash_parts[11].size = 0x1ff0;
|
||||
rdc_flash_parts[12].name = "bootloader_parthdr";
|
||||
rdc_flash_parts[12].offset = rdc_map_info.size - 0x6000;
|
||||
rdc_flash_parts[12].size = 0x10;
|
||||
rdc_flash_parts[13].name = "bootloader";
|
||||
rdc_flash_parts[13].offset = rdc_map_info.size - 0x5ff0;
|
||||
rdc_flash_parts[13].size = 0x5ff0;
|
||||
rdc_flash_parts[14].name = "everything";
|
||||
rdc_flash_parts[14].offset = 0;
|
||||
rdc_flash_parts[14].size = rdc_map_info.size;
|
||||
rdc_flash_data.nr_parts = 15;
|
||||
} else { /* ZyXEL */
|
||||
rdc_flash_parts[0].name = "kernel";
|
||||
rdc_flash_parts[0].offset = 0;
|
||||
rdc_flash_parts[0].size = 0x100000;
|
||||
rdc_flash_parts[1].name = "rootfs";
|
||||
rdc_flash_parts[1].offset = 0x100000;
|
||||
rdc_flash_parts[1].size = rdc_map_info.size - 0x140000;
|
||||
rdc_flash_parts[2].name = "linux";
|
||||
rdc_flash_parts[2].offset = 0;
|
||||
rdc_flash_parts[2].size = rdc_map_info.size - 0x40000;
|
||||
rdc_flash_parts[3].name = "config";
|
||||
rdc_flash_parts[3].offset = rdc_map_info.size - 0x40000;
|
||||
rdc_flash_parts[3].size = 0x10000;
|
||||
rdc_flash_parts[4].name = "productinfo";
|
||||
rdc_flash_parts[4].offset = rdc_map_info.size - 0x30000;
|
||||
rdc_flash_parts[4].size = 0x10000;
|
||||
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
|
||||
|
|
@ -0,0 +1,13 @@
|
|||
--- a/arch/x86/Makefile
|
||||
+++ b/arch/x86/Makefile
|
||||
@@ -124,6 +124,10 @@ core-y += $(fcore-y)
|
||||
# Xen paravirtualization support
|
||||
core-$(CONFIG_XEN) += arch/x86/xen/
|
||||
|
||||
+# RDC R-321X support
|
||||
+cflags-$(CONFIG_X86_RDC321X) := -Iarch/x86/include/asm/mach-rdc321x
|
||||
+core-$(CONFIG_X86_RDC321X) += arch/x86/mach-rdc321x/
|
||||
+
|
||||
# lguest paravirtualization support
|
||||
core-$(CONFIG_LGUEST_GUEST) += arch/x86/lguest/
|
||||
|
||||
Loading…
Reference in New Issue