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openwrt-xburst/target/linux/ar7/files/arch/mips/ar7/platform.c
florian 89b8dc025e Fix divisor calculation and configuration from previous commit, thanks sn9
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@12454 3c298f89-4303-0410-b956-a3cf2f4a3e73
2008-09-01 11:49:57 +00:00

534 lines
12 KiB
C

/*
* Copyright (C) 2006,2007 Felix Fietkau <nbd@openwrt.org>
* Copyright (C) 2006,2007 Eugene Konev <ejka@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/autoconf.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/mtd/physmap.h>
#include <linux/serial.h>
#include <linux/serial_8250.h>
#include <linux/ioport.h>
#include <linux/io.h>
#include <linux/version.h>
#include <linux/vlynq.h>
#include <linux/leds.h>
#include <linux/string.h>
#include <asm/addrspace.h>
#include <asm/ar7/ar7.h>
#include <asm/ar7/gpio.h>
#include <asm/ar7/prom.h>
struct plat_vlynq_data {
struct plat_vlynq_ops ops;
int gpio_bit;
int reset_bit;
};
static int vlynq_on(struct vlynq_device *dev)
{
int result;
struct plat_vlynq_data *pdata = dev->dev.platform_data;
if ((result = gpio_request(pdata->gpio_bit, "vlynq")))
goto out;
ar7_device_reset(pdata->reset_bit);
if ((result = ar7_gpio_disable(pdata->gpio_bit)))
goto out_enabled;
if ((result = ar7_gpio_enable(pdata->gpio_bit)))
goto out_enabled;
if ((result = gpio_direction_output(pdata->gpio_bit, 0)))
goto out_gpio_enabled;
mdelay(50);
gpio_set_value(pdata->gpio_bit, 1);
mdelay(50);
return 0;
out_gpio_enabled:
ar7_gpio_disable(pdata->gpio_bit);
out_enabled:
ar7_device_disable(pdata->reset_bit);
gpio_free(pdata->gpio_bit);
out:
return result;
}
static void vlynq_off(struct vlynq_device *dev)
{
struct plat_vlynq_data *pdata = dev->dev.platform_data;
ar7_gpio_disable(pdata->gpio_bit);
gpio_free(pdata->gpio_bit);
ar7_device_disable(pdata->reset_bit);
}
static struct resource physmap_flash_resource = {
.name = "mem",
.flags = IORESOURCE_MEM,
.start = 0x10000000,
.end = 0x107fffff,
};
static struct resource cpmac_low_res[] = {
{
.name = "regs",
.flags = IORESOURCE_MEM,
.start = AR7_REGS_MAC0,
.end = AR7_REGS_MAC0 + 0x7ff,
},
{
.name = "irq",
.flags = IORESOURCE_IRQ,
.start = 27,
.end = 27,
},
};
static struct resource cpmac_high_res[] = {
{
.name = "regs",
.flags = IORESOURCE_MEM,
.start = AR7_REGS_MAC1,
.end = AR7_REGS_MAC1 + 0x7ff,
},
{
.name = "irq",
.flags = IORESOURCE_IRQ,
.start = 41,
.end = 41,
},
};
static struct resource vlynq_low_res[] = {
{
.name = "regs",
.flags = IORESOURCE_MEM,
.start = AR7_REGS_VLYNQ0,
.end = AR7_REGS_VLYNQ0 + 0xff,
},
{
.name = "irq",
.flags = IORESOURCE_IRQ,
.start = 29,
.end = 29,
},
{
.name = "mem",
.flags = IORESOURCE_MEM,
.start = 0x04000000,
.end = 0x04ffffff,
},
{
.name = "devirq",
.flags = IORESOURCE_IRQ,
.start = 80,
.end = 111,
},
};
static struct resource vlynq_high_res[] = {
{
.name = "regs",
.flags = IORESOURCE_MEM,
.start = AR7_REGS_VLYNQ1,
.end = AR7_REGS_VLYNQ1 + 0xff,
},
{
.name = "irq",
.flags = IORESOURCE_IRQ,
.start = 33,
.end = 33,
},
{
.name = "mem",
.flags = IORESOURCE_MEM,
.start = 0x0c000000,
.end = 0x0cffffff,
},
{
.name = "devirq",
.flags = IORESOURCE_IRQ,
.start = 112,
.end = 143,
},
};
static struct resource usb_res[] = {
{
.name = "regs",
.flags = IORESOURCE_MEM,
.start = AR7_REGS_USB,
.end = AR7_REGS_USB + 0xff,
},
{
.name = "irq",
.flags = IORESOURCE_IRQ,
.start = 32,
.end = 32,
},
{
.name = "mem",
.flags = IORESOURCE_MEM,
.start = 0x03400000,
.end = 0x034001fff,
},
};
static struct physmap_flash_data physmap_flash_data = {
.width = 2,
};
static struct plat_cpmac_data cpmac_low_data = {
.reset_bit = 17,
.power_bit = 20,
.phy_mask = 0x80000000,
};
static struct plat_cpmac_data cpmac_high_data = {
.reset_bit = 21,
.power_bit = 22,
.phy_mask = 0x7fffffff,
};
static struct plat_vlynq_data vlynq_low_data = {
.ops.on = vlynq_on,
.ops.off = vlynq_off,
.reset_bit = 20,
.gpio_bit = 18,
};
static struct plat_vlynq_data vlynq_high_data = {
.ops.on = vlynq_on,
.ops.off = vlynq_off,
.reset_bit = 16,
.gpio_bit = 19,
};
static struct platform_device physmap_flash = {
.id = 0,
.name = "physmap-flash",
.dev.platform_data = &physmap_flash_data,
.resource = &physmap_flash_resource,
.num_resources = 1,
};
static u64 cpmac_dma_mask = DMA_32BIT_MASK;
static struct platform_device cpmac_low = {
.id = 0,
.name = "cpmac",
.dev = {
.dma_mask = &cpmac_dma_mask,
.coherent_dma_mask = DMA_32BIT_MASK,
.platform_data = &cpmac_low_data,
},
.resource = cpmac_low_res,
.num_resources = ARRAY_SIZE(cpmac_low_res),
};
static struct platform_device cpmac_high = {
.id = 1,
.name = "cpmac",
.dev = {
.dma_mask = &cpmac_dma_mask,
.coherent_dma_mask = DMA_32BIT_MASK,
.platform_data = &cpmac_high_data,
},
.resource = cpmac_high_res,
.num_resources = ARRAY_SIZE(cpmac_high_res),
};
static struct platform_device vlynq_low = {
.id = 0,
.name = "vlynq",
.dev.platform_data = &vlynq_low_data,
.resource = vlynq_low_res,
.num_resources = ARRAY_SIZE(vlynq_low_res),
};
static struct platform_device vlynq_high = {
.id = 1,
.name = "vlynq",
.dev.platform_data = &vlynq_high_data,
.resource = vlynq_high_res,
.num_resources = ARRAY_SIZE(vlynq_high_res),
};
/* This is proper way to define uart ports, but they are then detected
* as xscale and, obviously, don't work...
*/
#if !defined(CONFIG_SERIAL_8250)
static struct plat_serial8250_port uart0_data = {
.mapbase = AR7_REGS_UART0,
.irq = AR7_IRQ_UART0,
.regshift = 2,
.iotype = UPIO_MEM,
.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
};
static struct plat_serial8250_port uart1_data = {
.mapbase = UR8_REGS_UART1,
.irq = AR7_IRQ_UART1,
.regshift = 2,
.iotype = UPIO_MEM,
.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
};
static struct plat_serial8250_port uart_data[] = {
uart0_data,
uart1_data,
{ .flags = 0 }
};
static struct plat_serial8250_port uart_data_single[] = {
uart0_data,
{ .flags = 0 }
};
static struct platform_device uart = {
.id = 0,
.name = "serial8250",
.dev.platform_data = uart_data_single
};
#endif
static struct gpio_led default_leds[] = {
{ .name = "status", .gpio = 8, .active_low = 1, },
};
static struct gpio_led dsl502t_leds[] = {
{ .name = "status", .gpio = 9, .active_low = 1, },
{ .name = "ethernet", .gpio = 7, .active_low = 1, },
{ .name = "usb", .gpio = 12, .active_low = 1, },
};
static struct gpio_led dg834g_leds[] = {
{ .name = "ppp", .gpio = 6, .active_low = 1, },
{ .name = "status", .gpio = 7, .active_low = 1, },
{ .name = "adsl", .gpio = 8, .active_low = 1, },
{ .name = "wifi", .gpio = 12, .active_low = 1, },
{ .name = "power", .gpio = 14, .active_low = 1, .default_trigger = "default-on", },
};
static struct gpio_led fb_sl_leds[] = {
{ .name = "1", .gpio = 7, },
{ .name = "2", .gpio = 13, .active_low = 1, },
{ .name = "3", .gpio = 10, .active_low = 1, },
{ .name = "4", .gpio = 12, .active_low = 1, },
{ .name = "5", .gpio = 9, .active_low = 1, },
};
static struct gpio_led fb_fon_leds[] = {
{ .name = "1", .gpio = 8, },
{ .name = "2", .gpio = 3, .active_low = 1, },
{ .name = "3", .gpio = 5, },
{ .name = "4", .gpio = 4, .active_low = 1, },
{ .name = "5", .gpio = 11, .active_low = 1, },
};
static struct gpio_led_platform_data ar7_led_data;
static struct platform_device ar7_gpio_leds = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &ar7_led_data,
}
};
static struct platform_device ar7_udc = {
.id = -1,
.name = "ar7_udc",
.resource = usb_res,
.num_resources = ARRAY_SIZE(usb_res),
};
static inline unsigned char char2hex(char h)
{
switch (h) {
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
return h - '0';
case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
return h - 'A' + 10;
case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
return h - 'a' + 10;
default:
return 0;
}
}
static void cpmac_get_mac(int instance, unsigned char *dev_addr)
{
int i;
char name[5], default_mac[] = "00:00:00:12:34:56", *mac;
mac = NULL;
sprintf(name, "mac%c", 'a' + instance);
mac = prom_getenv(name);
if (!mac) {
sprintf(name, "mac%c", 'a');
mac = prom_getenv(name);
}
if (!mac)
mac = default_mac;
for (i = 0; i < 6; i++)
dev_addr[i] = (char2hex(mac[i * 3]) << 4) +
char2hex(mac[i * 3 + 1]);
}
static void __init detect_leds(void)
{
char *prId, *usb_prod;
/* Default LEDs */
ar7_led_data.num_leds = ARRAY_SIZE(default_leds);
ar7_led_data.leds = default_leds;
/* FIXME: the whole thing is unreliable */
prId = prom_getenv("ProductID");
usb_prod = prom_getenv("usb_prod");
/* If we can't get the product id from PROM, use the default LEDs */
if (!prId)
return;
if (strstr(prId, "Fritz_Box_FON")) {
ar7_led_data.num_leds = ARRAY_SIZE(fb_fon_leds);
ar7_led_data.leds = fb_fon_leds;
} else if (strstr(prId, "Fritz_Box_")) {
ar7_led_data.num_leds = ARRAY_SIZE(fb_sl_leds);
ar7_led_data.leds = fb_sl_leds;
} else if ((!strcmp(prId, "AR7RD") || !strcmp(prId, "AR7DB")) && usb_prod != NULL && strstr(usb_prod, "DSL-502T")) {
ar7_led_data.num_leds = ARRAY_SIZE(dsl502t_leds);
ar7_led_data.leds = dsl502t_leds;
} else if (strstr(prId, "DG834")) {
ar7_led_data.num_leds = ARRAY_SIZE(dg834g_leds);
ar7_led_data.leds = dg834g_leds;
}
}
static int __init ar7_register_devices(void)
{
int res;
#ifdef CONFIG_SERIAL_8250
static struct uart_port uart_port[2];
memset(uart_port, 0, sizeof(struct uart_port) * 2);
uart_port[0].type = PORT_AR7;
uart_port[0].line = 0;
uart_port[0].irq = AR7_IRQ_UART0;
uart_port[0].uartclk = ar7_bus_freq() / 2;
uart_port[0].iotype = UPIO_MEM;
uart_port[0].mapbase = AR7_REGS_UART0;
uart_port[0].membase = ioremap(uart_port[0].mapbase, 256);
uart_port[0].regshift = 2;
res = early_serial_setup(&uart_port[0]);
if (res)
return res;
/* Only TNETD73xx have a second serial port */
if (ar7_has_second_uart()) {
uart_port[1].type = PORT_AR7;
uart_port[1].line = 1;
uart_port[1].irq = AR7_IRQ_UART1;
uart_port[1].uartclk = ar7_bus_freq() / 2;
uart_port[1].iotype = UPIO_MEM;
uart_port[1].mapbase = UR8_REGS_UART1;
uart_port[1].membase = ioremap(uart_port[1].mapbase, 256);
uart_port[1].regshift = 2;
res = early_serial_setup(&uart_port[1]);
if (res)
return res;
}
#else /* !CONFIG_SERIAL_8250 */
uart_data[0].uartclk = ar7_bus_freq() / 2;
uart_data[1].uartclk = uart_data[0].uartclk;
/* Only TNETD73xx have a second serial port */
if (ar7_has_second_uart())
uart.dev.platform_data = uart_data;
res = platform_device_register(&uart);
if (res)
return res;
#endif /* CONFIG_SERIAL_8250 */
res = platform_device_register(&physmap_flash);
if (res)
return res;
ar7_device_disable(vlynq_low_data.reset_bit);
res = platform_device_register(&vlynq_low);
if (res)
return res;
if (ar7_has_high_vlynq()) {
ar7_device_disable(vlynq_high_data.reset_bit);
res = platform_device_register(&vlynq_high);
if (res)
return res;
}
if (ar7_has_high_cpmac()) {
cpmac_get_mac(1, cpmac_high_data.dev_addr);
res = platform_device_register(&cpmac_high);
if (res)
return res;
} else {
cpmac_low_data.phy_mask = 0xffffffff;
}
cpmac_get_mac(0, cpmac_low_data.dev_addr);
res = platform_device_register(&cpmac_low);
if (res)
return res;
detect_leds();
res = platform_device_register(&ar7_gpio_leds);
if (res)
return res;
res = platform_device_register(&ar7_udc);
return res;
}
arch_initcall(ar7_register_devices);