mirror of https://github.com/hak5/openwrt.git
97 lines
2.1 KiB
C
97 lines
2.1 KiB
C
|
/*
|
||
|
|
* Ralink RT305x SoC platform device registration
|
||
|
|
*
|
||
|
|
* Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify it
|
||
|
|
* under the terms of the GNU General Public License version 2 as published
|
||
|
|
* by the Free Software Foundation.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/kernel.h>
|
||
|
|
#include <linux/platform_device.h>
|
||
|
|
#include <linux/mtd/mtd.h>
|
||
|
|
#include <linux/mtd/physmap.h>
|
||
|
|
|
||
|
|
#include <asm/addrspace.h>
|
||
|
|
|
||
|
|
#include <asm/mach-ralink/rt305x.h>
|
||
|
|
#include <asm/mach-ralink/rt305x_regs.h>
|
||
|
|
#include "devices.h"
|
||
|
|
|
||
|
|
static struct resource rt305x_flash0_resources[] = {
|
||
|
|
{
|
||
|
|
.flags = IORESOURCE_MEM,
|
||
|
|
.start = KSEG1ADDR(RT305X_FLASH0_BASE),
|
||
|
|
.end = KSEG1ADDR(RT305X_FLASH0_BASE) +
|
||
|
|
RT305X_FLASH0_SIZE - 1,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct platform_device rt305x_flash0_device = {
|
||
|
|
.name = "physmap-flash",
|
||
|
|
.resource = rt305x_flash0_resources,
|
||
|
|
.num_resources = ARRAY_SIZE(rt305x_flash0_resources),
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct resource rt305x_flash1_resources[] = {
|
||
|
|
{
|
||
|
|
.flags = IORESOURCE_MEM,
|
||
|
|
.start = KSEG1ADDR(RT305X_FLASH1_BASE),
|
||
|
|
.end = KSEG1ADDR(RT305X_FLASH1_BASE) +
|
||
|
|
RT305X_FLASH1_SIZE - 1,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct platform_device rt305x_flash1_device = {
|
||
|
|
.name = "physmap-flash",
|
||
|
|
.resource = rt305x_flash1_resources,
|
||
|
|
.num_resources = ARRAY_SIZE(rt305x_flash1_resources),
|
||
|
|
};
|
||
|
|
|
||
|
|
static int rt305x_flash_instance __initdata;
|
||
|
|
void __init rt305x_register_flash(unsigned int id,
|
||
|
|
struct physmap_flash_data *pdata)
|
||
|
|
{
|
||
|
|
struct platform_device *pdev;
|
||
|
|
u32 t;
|
||
|
|
int reg;
|
||
|
|
|
||
|
|
switch (id) {
|
||
|
|
case 0:
|
||
|
|
pdev = &rt305x_flash0_device;
|
||
|
|
reg = MEMC_REG_FLASH_CFG0;
|
||
|
|
break;
|
||
|
|
case 1:
|
||
|
|
pdev = &rt305x_flash1_device;
|
||
|
|
reg = MEMC_REG_FLASH_CFG1;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
t = rt305x_memc_rr(reg);
|
||
|
|
t = (t >> FLASH_CFG_WIDTH_SHIFT) & FLASH_CFG_WIDTH_MASK;
|
||
|
|
|
||
|
|
switch (t) {
|
||
|
|
case FLASH_CFG_WIDTH_8BIT:
|
||
|
|
pdata->width = 1;
|
||
|
|
break;
|
||
|
|
case FLASH_CFG_WIDTH_16BIT:
|
||
|
|
pdata->width = 2;
|
||
|
|
break;
|
||
|
|
case FLASH_CFG_WIDTH_32BIT:
|
||
|
|
pdata->width = 4;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
printk(KERN_ERR "RT305x: flash bank%u witdh is invalid\n", id);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
pdev->dev.platform_data = pdata;
|
||
|
|
pdev->id = rt305x_flash_instance;
|
||
|
|
|
||
|
|
platform_device_register(pdev);
|
||
|
|
rt305x_flash_instance++;
|
||
|
|
}
|