mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-14 13:21:53 +02:00
5a2708d192
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@30888 3c298f89-4303-0410-b956-a3cf2f4a3e73
154 lines
3.9 KiB
C
154 lines
3.9 KiB
C
/*
|
|
* Ralink RT288x SoC specific setup
|
|
*
|
|
* Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
|
|
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
|
|
*
|
|
* Parts of this file are based on Ralink's 2.6.21 BSP
|
|
*
|
|
* 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/init.h>
|
|
#include <linux/module.h>
|
|
|
|
#include <asm/mach-ralink/common.h>
|
|
#include <asm/mach-ralink/ramips_gpio.h>
|
|
#include <asm/mach-ralink/rt288x.h>
|
|
#include <asm/mach-ralink/rt288x_regs.h>
|
|
|
|
void __iomem * rt288x_sysc_base;
|
|
void __iomem * rt288x_memc_base;
|
|
|
|
void __init ramips_soc_prom_init(void)
|
|
{
|
|
void __iomem *sysc = (void __iomem *) KSEG1ADDR(RT2880_SYSC_BASE);
|
|
u32 n0;
|
|
u32 n1;
|
|
u32 id;
|
|
|
|
n0 = __raw_readl(sysc + SYSC_REG_CHIP_NAME0);
|
|
n1 = __raw_readl(sysc + SYSC_REG_CHIP_NAME1);
|
|
id = __raw_readl(sysc + SYSC_REG_CHIP_ID);
|
|
|
|
snprintf(ramips_sys_type, RAMIPS_SYS_TYPE_LEN,
|
|
"Ralink %c%c%c%c%c%c%c%c id:%u rev:%u",
|
|
(char) (n0 & 0xff), (char) ((n0 >> 8) & 0xff),
|
|
(char) ((n0 >> 16) & 0xff), (char) ((n0 >> 24) & 0xff),
|
|
(char) (n1 & 0xff), (char) ((n1 >> 8) & 0xff),
|
|
(char) ((n1 >> 16) & 0xff), (char) ((n1 >> 24) & 0xff),
|
|
(id >> CHIP_ID_ID_SHIFT) & CHIP_ID_ID_MASK,
|
|
(id & CHIP_ID_REV_MASK));
|
|
|
|
ramips_mem_base = RT2880_SDRAM_BASE;
|
|
ramips_mem_size_min = RT288X_MEM_SIZE_MIN;
|
|
ramips_mem_size_max = RT288X_MEM_SIZE_MAX;
|
|
}
|
|
|
|
static struct ramips_gpio_chip rt288x_gpio_chips[] = {
|
|
{
|
|
.chip = {
|
|
.label = "RT288X-GPIO0",
|
|
.base = 0,
|
|
.ngpio = 24,
|
|
},
|
|
.regs = {
|
|
[RAMIPS_GPIO_REG_INT] = 0x00,
|
|
[RAMIPS_GPIO_REG_EDGE] = 0x04,
|
|
[RAMIPS_GPIO_REG_RENA] = 0x08,
|
|
[RAMIPS_GPIO_REG_FENA] = 0x0c,
|
|
[RAMIPS_GPIO_REG_DATA] = 0x20,
|
|
[RAMIPS_GPIO_REG_DIR] = 0x24,
|
|
[RAMIPS_GPIO_REG_POL] = 0x28,
|
|
[RAMIPS_GPIO_REG_SET] = 0x2c,
|
|
[RAMIPS_GPIO_REG_RESET] = 0x30,
|
|
[RAMIPS_GPIO_REG_TOGGLE] = 0x34,
|
|
},
|
|
.map_base = RT2880_PIO_BASE,
|
|
.map_size = RT2880_PIO_SIZE,
|
|
},
|
|
{
|
|
.chip = {
|
|
.label = "RT288X-GPIO1",
|
|
.base = 24,
|
|
.ngpio = 16,
|
|
},
|
|
.regs = {
|
|
[RAMIPS_GPIO_REG_INT] = 0x38,
|
|
[RAMIPS_GPIO_REG_EDGE] = 0x3c,
|
|
[RAMIPS_GPIO_REG_RENA] = 0x40,
|
|
[RAMIPS_GPIO_REG_FENA] = 0x44,
|
|
[RAMIPS_GPIO_REG_DATA] = 0x48,
|
|
[RAMIPS_GPIO_REG_DIR] = 0x4c,
|
|
[RAMIPS_GPIO_REG_POL] = 0x50,
|
|
[RAMIPS_GPIO_REG_SET] = 0x54,
|
|
[RAMIPS_GPIO_REG_RESET] = 0x58,
|
|
[RAMIPS_GPIO_REG_TOGGLE] = 0x5c,
|
|
},
|
|
.map_base = RT2880_PIO_BASE,
|
|
.map_size = RT2880_PIO_SIZE,
|
|
},
|
|
{
|
|
.chip = {
|
|
.label = "RT288X-GPIO2",
|
|
.base = 40,
|
|
.ngpio = 32,
|
|
},
|
|
.regs = {
|
|
[RAMIPS_GPIO_REG_INT] = 0x60,
|
|
[RAMIPS_GPIO_REG_EDGE] = 0x64,
|
|
[RAMIPS_GPIO_REG_RENA] = 0x68,
|
|
[RAMIPS_GPIO_REG_FENA] = 0x6c,
|
|
[RAMIPS_GPIO_REG_DATA] = 0x70,
|
|
[RAMIPS_GPIO_REG_DIR] = 0x74,
|
|
[RAMIPS_GPIO_REG_POL] = 0x78,
|
|
[RAMIPS_GPIO_REG_SET] = 0x7c,
|
|
[RAMIPS_GPIO_REG_RESET] = 0x80,
|
|
[RAMIPS_GPIO_REG_TOGGLE] = 0x84,
|
|
},
|
|
.map_base = RT2880_PIO_BASE,
|
|
.map_size = RT2880_PIO_SIZE,
|
|
},
|
|
};
|
|
|
|
static struct ramips_gpio_data rt288x_gpio_data = {
|
|
.chips = rt288x_gpio_chips,
|
|
.num_chips = ARRAY_SIZE(rt288x_gpio_chips),
|
|
};
|
|
|
|
static void rt288x_gpio_reserve(int first, int last)
|
|
{
|
|
for (; first <= last; first++)
|
|
gpio_request(first, "reserved");
|
|
}
|
|
|
|
void __init rt288x_gpio_init(u32 mode)
|
|
{
|
|
rt288x_sysc_wr(mode, SYSC_REG_GPIO_MODE);
|
|
|
|
ramips_gpio_init(&rt288x_gpio_data);
|
|
if ((mode & RT2880_GPIO_MODE_I2C) == 0)
|
|
rt288x_gpio_reserve(1, 2);
|
|
|
|
if ((mode & RT2880_GPIO_MODE_SPI) == 0)
|
|
rt288x_gpio_reserve(3, 6);
|
|
|
|
if ((mode & RT2880_GPIO_MODE_UART0) == 0)
|
|
rt288x_gpio_reserve(7, 14);
|
|
|
|
if ((mode & RT2880_GPIO_MODE_JTAG) == 0)
|
|
rt288x_gpio_reserve(17, 21);
|
|
|
|
if ((mode & RT2880_GPIO_MODE_MDIO) == 0)
|
|
rt288x_gpio_reserve(22, 23);
|
|
|
|
if ((mode & RT2880_GPIO_MODE_SDRAM) == 0)
|
|
rt288x_gpio_reserve(24, 39);
|
|
|
|
if ((mode & RT2880_GPIO_MODE_PCI) == 0)
|
|
rt288x_gpio_reserve(40, 71);
|
|
}
|