mirror of https://github.com/hak5/openwrt.git
217 lines
5.7 KiB
C
217 lines
5.7 KiB
C
/*
|
|
* Ralink RT3662/RT3883 SoC specific setup
|
|
*
|
|
* Copyright (C) 2011-2012 Gabor Juhos <juhosg@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/rt3883.h>
|
|
#include <asm/mach-ralink/rt3883_regs.h>
|
|
|
|
void __iomem * rt3883_sysc_base;
|
|
void __iomem * rt3883_memc_base;
|
|
|
|
void __init ramips_soc_prom_init(void)
|
|
{
|
|
void __iomem *sysc = (void __iomem *) KSEG1ADDR(RT3883_SYSC_BASE);
|
|
u32 n0;
|
|
u32 n1;
|
|
u32 id;
|
|
|
|
n0 = __raw_readl(sysc + RT3883_SYSC_REG_CHIPID0_3);
|
|
n1 = __raw_readl(sysc + RT3883_SYSC_REG_CHIPID4_7);
|
|
id = __raw_readl(sysc + RT3883_SYSC_REG_REVID);
|
|
|
|
snprintf(ramips_sys_type, RAMIPS_SYS_TYPE_LEN,
|
|
"Ralink %c%c%c%c%c%c%c%c ver:%u eco:%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 >> RT3883_REVID_VER_ID_SHIFT) & RT3883_REVID_VER_ID_MASK,
|
|
(id & RT3883_REVID_ECO_ID_MASK));
|
|
|
|
ramips_mem_base = RT3883_SDRAM_BASE;
|
|
ramips_mem_size_min = RT3883_MEM_SIZE_MIN;
|
|
ramips_mem_size_max = RT3883_MEM_SIZE_MAX;
|
|
}
|
|
|
|
static struct ramips_gpio_chip rt3883_gpio_chips[] = {
|
|
{
|
|
.chip = {
|
|
.label = "RT3883-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 = RT3883_PIO_BASE,
|
|
.map_size = RT3883_PIO_SIZE,
|
|
},
|
|
{
|
|
.chip = {
|
|
.label = "RT3883-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 = RT3883_PIO_BASE,
|
|
.map_size = RT3883_PIO_SIZE,
|
|
},
|
|
{
|
|
.chip = {
|
|
.label = "RT3883-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 = RT3883_PIO_BASE,
|
|
.map_size = RT3883_PIO_SIZE,
|
|
},
|
|
{
|
|
.chip = {
|
|
.label = "RT3883-GPIO3",
|
|
.base = 72,
|
|
.ngpio = 24,
|
|
},
|
|
.regs = {
|
|
[RAMIPS_GPIO_REG_INT] = 0x88,
|
|
[RAMIPS_GPIO_REG_EDGE] = 0x8c,
|
|
[RAMIPS_GPIO_REG_RENA] = 0x90,
|
|
[RAMIPS_GPIO_REG_FENA] = 0x94,
|
|
[RAMIPS_GPIO_REG_DATA] = 0x98,
|
|
[RAMIPS_GPIO_REG_DIR] = 0x9c,
|
|
[RAMIPS_GPIO_REG_POL] = 0xa0,
|
|
[RAMIPS_GPIO_REG_SET] = 0xa4,
|
|
[RAMIPS_GPIO_REG_RESET] = 0xa8,
|
|
[RAMIPS_GPIO_REG_TOGGLE] = 0xac,
|
|
},
|
|
.map_base = RT3883_PIO_BASE,
|
|
.map_size = RT3883_PIO_SIZE,
|
|
},
|
|
};
|
|
|
|
static struct ramips_gpio_data rt3883_gpio_data = {
|
|
.chips = rt3883_gpio_chips,
|
|
.num_chips = ARRAY_SIZE(rt3883_gpio_chips),
|
|
};
|
|
|
|
static void rt3883_gpio_reserve(int first, int last)
|
|
{
|
|
for (; first <= last; first++)
|
|
gpio_request(first, "reserved");
|
|
}
|
|
|
|
void __init rt3883_gpio_init(u32 mode)
|
|
{
|
|
u32 t;
|
|
|
|
rt3883_sysc_wr(mode, RT3883_SYSC_REG_GPIO_MODE);
|
|
|
|
ramips_gpio_init(&rt3883_gpio_data);
|
|
if ((mode & RT3883_GPIO_MODE_I2C) == 0)
|
|
rt3883_gpio_reserve(RT3883_GPIO_I2C_SD, RT3883_GPIO_I2C_SCLK);
|
|
|
|
if ((mode & RT3883_GPIO_MODE_SPI) == 0)
|
|
rt3883_gpio_reserve(RT3883_GPIO_SPI_CS0, RT3883_GPIO_SPI_MISO);
|
|
|
|
t = mode >> RT3883_GPIO_MODE_UART0_SHIFT;
|
|
t &= RT3883_GPIO_MODE_UART0_MASK;
|
|
switch (t) {
|
|
case RT3883_GPIO_MODE_UARTF:
|
|
case RT3883_GPIO_MODE_PCM_UARTF:
|
|
case RT3883_GPIO_MODE_PCM_I2S:
|
|
case RT3883_GPIO_MODE_I2S_UARTF:
|
|
rt3883_gpio_reserve(RT3883_GPIO_7, RT3883_GPIO_14);
|
|
break;
|
|
case RT3883_GPIO_MODE_PCM_GPIO:
|
|
rt3883_gpio_reserve(RT3883_GPIO_11, RT3883_GPIO_14);
|
|
break;
|
|
case RT3883_GPIO_MODE_GPIO_UARTF:
|
|
case RT3883_GPIO_MODE_GPIO_I2S:
|
|
rt3883_gpio_reserve(RT3883_GPIO_7, RT3883_GPIO_10);
|
|
break;
|
|
}
|
|
|
|
if ((mode & RT3883_GPIO_MODE_UART1) == 0)
|
|
rt3883_gpio_reserve(RT3883_GPIO_UART1_TXD,
|
|
RT3883_GPIO_UART1_RXD);
|
|
|
|
if ((mode & RT3883_GPIO_MODE_JTAG) == 0)
|
|
rt3883_gpio_reserve(RT3883_GPIO_JTAG_TDO,
|
|
RT3883_GPIO_JTAG_TCLK);
|
|
|
|
if ((mode & RT3883_GPIO_MODE_MDIO) == 0)
|
|
rt3883_gpio_reserve(RT3883_GPIO_MDIO_MDC,
|
|
RT3883_GPIO_MDIO_MDIO);
|
|
|
|
if ((mode & RT3883_GPIO_MODE_GE1) == 0)
|
|
rt3883_gpio_reserve(RT3883_GPIO_GE1_TXD0,
|
|
RT3883_GPIO_GE1_RXCLK);
|
|
|
|
if ((mode & RT3883_GPIO_MODE_GE2) == 0)
|
|
rt3883_gpio_reserve(RT3883_GPIO_GE2_TXD0,
|
|
RT3883_GPIO_GE2_RXCLK);
|
|
|
|
t = mode >> RT3883_GPIO_MODE_PCI_SHIFT;
|
|
t &= RT3883_GPIO_MODE_PCI_MASK;
|
|
if (t != RT3883_GPIO_MODE_PCI_GPIO)
|
|
rt3883_gpio_reserve(RT3883_GPIO_PCI_AD0,
|
|
RT3883_GPIO_PCI_AD31);
|
|
|
|
t = mode >> RT3883_GPIO_MODE_LNA_A_SHIFT;
|
|
t &= RT3883_GPIO_MODE_LNA_A_MASK;
|
|
if (t != RT3883_GPIO_MODE_LNA_A_GPIO)
|
|
rt3883_gpio_reserve(RT3883_GPIO_LNA_PE_A0,
|
|
RT3883_GPIO_LNA_PE_A2);
|
|
|
|
t = mode >> RT3883_GPIO_MODE_LNA_G_SHIFT;
|
|
t &= RT3883_GPIO_MODE_LNA_G_MASK;
|
|
if (t != RT3883_GPIO_MODE_LNA_G_GPIO)
|
|
rt3883_gpio_reserve(RT3883_GPIO_LNA_PE_G0,
|
|
RT3883_GPIO_LNA_PE_G2);
|
|
}
|