- 根目录:
- arch
- arm
- mach-clps711x
- board-p720t.c
/*
* linux/arch/arm/mach-clps711x/p720t.c
*
* Copyright (C) 2000-2001 Deep Blue Solutions Ltd
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/slab.h>
#include <linux/leds.h>
#include <linux/sizes.h>
#include <linux/backlight.h>
#include <linux/basic_mmio_gpio.h>
#include <linux/platform_device.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/nand-gpio.h>
#include <mach/hardware.h>
#include <asm/pgtable.h>
#include <asm/page.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <video/platform_lcd.h>
#include "common.h"
#include "devices.h"
#define P720T_USERLED CLPS711X_GPIO(3, 0)
#define P720T_NAND_CLE CLPS711X_GPIO(4, 0)
#define P720T_NAND_ALE CLPS711X_GPIO(4, 1)
#define P720T_NAND_NCE CLPS711X_GPIO(4, 2)
#define P720T_NAND_BASE (CLPS711X_SDRAM1_BASE)
#define P720T_MMGPIO_BASE (CLPS711X_NR_GPIO)
#define SYSPLD_PHYS_BASE IOMEM(CS1_PHYS_BASE)
#define PLD_INT (SYSPLD_PHYS_BASE + 0x000000)
#define PLD_INT_MMGPIO_BASE (P720T_MMGPIO_BASE + 0)
#define PLD_INT_PENIRQ (PLD_INT_MMGPIO_BASE + 5)
#define PLD_INT_UCB_IRQ (PLD_INT_MMGPIO_BASE + 1)
#define PLD_INT_KBD_ATN (PLD_INT_MMGPIO_BASE + 0) /* EINT1 */
#define PLD_PWR (SYSPLD_PHYS_BASE + 0x000004)
#define PLD_PWR_MMGPIO_BASE (P720T_MMGPIO_BASE + 8)
#define PLD_PWR_EXT (PLD_PWR_MMGPIO_BASE + 5)
#define PLD_PWR_MODE (PLD_PWR_MMGPIO_BASE + 4) /* 1 = PWM, 0 = PFM */
#define PLD_S4_ON (PLD_PWR_MMGPIO_BASE + 3) /* LCD bias voltage enable */
#define PLD_S3_ON (PLD_PWR_MMGPIO_BASE + 2) /* LCD backlight enable */
#define PLD_S2_ON (PLD_PWR_MMGPIO_BASE + 1) /* LCD 3V3 supply enable */
#define PLD_S1_ON (PLD_PWR_MMGPIO_BASE + 0) /* LCD 3V supply enable */
#define PLD_KBD (SYSPLD_PHYS_BASE + 0x000008)
#define PLD_KBD_MMGPIO_BASE (P720T_MMGPIO_BASE + 16)
#define PLD_KBD_WAKE (PLD_KBD_MMGPIO_BASE + 1)
#define PLD_KBD_EN (PLD_KBD_MMGPIO_BASE + 0)
#define PLD_SPI (SYSPLD_PHYS_BASE + 0x00000c)
#define PLD_SPI_MMGPIO_BASE (P720T_MMGPIO_BASE + 24)
#define PLD_SPI_EN (PLD_SPI_MMGPIO_BASE + 0)
#define PLD_IO (SYSPLD_PHYS_BASE + 0x000010)
#define PLD_IO_MMGPIO_BASE (P720T_MMGPIO_BASE + 32)
#define PLD_IO_BOOTSEL (PLD_IO_MMGPIO_BASE + 6) /* Boot sel switch */
#define PLD_IO_USER (PLD_IO_MMGPIO_BASE + 5) /* User defined switch */
#define PLD_IO_LED3 (PLD_IO_MMGPIO_BASE + 4)
#define PLD_IO_LED2 (PLD_IO_MMGPIO_BASE + 3)
#define PLD_IO_LED1 (PLD_IO_MMGPIO_BASE + 2)
#define PLD_IO_LED0 (PLD_IO_MMGPIO_BASE + 1)
#define PLD_IO_LEDEN (PLD_IO_MMGPIO_BASE + 0)
#define PLD_IRDA (SYSPLD_PHYS_BASE + 0x000014)
#define PLD_IRDA_MMGPIO_BASE (P720T_MMGPIO_BASE + 40)
#define PLD_IRDA_EN (PLD_IRDA_MMGPIO_BASE + 0)
#define PLD_COM2 (SYSPLD_PHYS_BASE + 0x000018)
#define PLD_COM2_MMGPIO_BASE (P720T_MMGPIO_BASE + 48)
#define PLD_COM2_EN (PLD_COM2_MMGPIO_BASE + 0)
#define PLD_COM1 (SYSPLD_PHYS_BASE + 0x00001c)
#define PLD_COM1_MMGPIO_BASE (P720T_MMGPIO_BASE + 56)
#define PLD_COM1_EN (PLD_COM1_MMGPIO_BASE + 0)
#define PLD_AUD (SYSPLD_PHYS_BASE + 0x000020)
#define PLD_AUD_MMGPIO_BASE (P720T_MMGPIO_BASE + 64)
#define PLD_AUD_DIV1 (PLD_AUD_MMGPIO_BASE + 6)
#define PLD_AUD_DIV0 (PLD_AUD_MMGPIO_BASE + 5)
#define PLD_AUD_CLK_SEL1 (PLD_AUD_MMGPIO_BASE + 4)
#define PLD_AUD_CLK_SEL0 (PLD_AUD_MMGPIO_BASE + 3)
#define PLD_AUD_MIC_PWR (PLD_AUD_MMGPIO_BASE + 2)
#define PLD_AUD_MIC_GAIN (PLD_AUD_MMGPIO_BASE + 1)
#define PLD_AUD_CODEC_EN (PLD_AUD_MMGPIO_BASE + 0)
#define PLD_CF (SYSPLD_PHYS_BASE + 0x000024)
#define PLD_CF_MMGPIO_BASE (P720T_MMGPIO_BASE + 72)
#define PLD_CF2_SLEEP (PLD_CF_MMGPIO_BASE + 5)
#define PLD_CF1_SLEEP (PLD_CF_MMGPIO_BASE + 4)
#define PLD_CF2_nPDREQ (PLD_CF_MMGPIO_BASE + 3)
#define PLD_CF1_nPDREQ (PLD_CF_MMGPIO_BASE + 2)
#define PLD_CF2_nIRQ (PLD_CF_MMGPIO_BASE + 1)
#define PLD_CF1_nIRQ (PLD_CF_MMGPIO_BASE + 0)
#define PLD_SDC (SYSPLD_PHYS_BASE + 0x000028)
#define PLD_SDC_MMGPIO_BASE (P720T_MMGPIO_BASE + 80)
#define PLD_SDC_INT_EN (PLD_SDC_MMGPIO_BASE + 2)
#define PLD_SDC_WP (PLD_SDC_MMGPIO_BASE + 1)
#define PLD_SDC_CD (PLD_SDC_MMGPIO_BASE + 0)
#define PLD_CODEC (SYSPLD_PHYS_BASE + 0x400000)
#define PLD_CODEC_MMGPIO_BASE (P720T_MMGPIO_BASE + 88)
#define PLD_CODEC_IRQ3 (PLD_CODEC_MMGPIO_BASE + 4)
#define PLD_CODEC_IRQ2 (PLD_CODEC_MMGPIO_BASE + 3)
#define PLD_CODEC_IRQ1 (PLD_CODEC_MMGPIO_BASE + 2)
#define PLD_CODEC_EN (PLD_CODEC_MMGPIO_BASE + 0)
#define PLD_BRITE (SYSPLD_PHYS_BASE + 0x400004)
#define PLD_BRITE_MMGPIO_BASE (P720T_MMGPIO_BASE + 96)
#define PLD_BRITE_UP (PLD_BRITE_MMGPIO_BASE + 1)
#define PLD_BRITE_DN (PLD_BRITE_MMGPIO_BASE + 0)
#define PLD_LCDEN (SYSPLD_PHYS_BASE + 0x400008)
#define PLD_LCDEN_MMGPIO_BASE (P720T_MMGPIO_BASE + 104)
#define PLD_LCDEN_EN (PLD_LCDEN_MMGPIO_BASE + 0)
#define PLD_TCH (SYSPLD_PHYS_BASE + 0x400010)
#define PLD_TCH_MMGPIO_BASE (P720T_MMGPIO_BASE + 112)
#define PLD_TCH_PENIRQ (PLD_TCH_MMGPIO_BASE + 1)
#define PLD_TCH_EN (PLD_TCH_MMGPIO_BASE + 0)
#define PLD_GPIO (SYSPLD_PHYS_BASE + 0x400014)
#define PLD_GPIO_MMGPIO_BASE (P720T_MMGPIO_BASE + 120)
#define PLD_GPIO2 (PLD_GPIO_MMGPIO_BASE + 2)
#define PLD_GPIO1 (PLD_GPIO_MMGPIO_BASE + 1)
#define PLD_GPIO0 (PLD_GPIO_MMGPIO_BASE + 0)
static struct gpio p720t_gpios[] __initconst = {
{ PLD_S1_ON, GPIOF_OUT_INIT_LOW, "PLD_S1_ON" },
{ PLD_S2_ON, GPIOF_OUT_INIT_LOW, "PLD_S2_ON" },
{ PLD_S3_ON, GPIOF_OUT_INIT_LOW, "PLD_S3_ON" },
{ PLD_S4_ON, GPIOF_OUT_INIT_LOW, "PLD_S4_ON" },
{ PLD_KBD_EN, GPIOF_OUT_INIT_LOW, "PLD_KBD_EN" },
{ PLD_SPI_EN, GPIOF_OUT_INIT_LOW, "PLD_SPI_EN" },
{ PLD_IO_USER, GPIOF_OUT_INIT_LOW, "PLD_IO_USER" },
{ PLD_IO_LED0, GPIOF_OUT_INIT_LOW, "PLD_IO_LED0" },
{ PLD_IO_LED1, GPIOF_OUT_INIT_LOW, "PLD_IO_LED1" },
{ PLD_IO_LED2, GPIOF_OUT_INIT_LOW, "PLD_IO_LED2" },
{ PLD_IO_LED3, GPIOF_OUT_INIT_LOW, "PLD_IO_LED3" },
{ PLD_IO_LEDEN, GPIOF_OUT_INIT_LOW, "PLD_IO_LEDEN" },
{ PLD_IRDA_EN, GPIOF_OUT_INIT_LOW, "PLD_IRDA_EN" },
{ PLD_COM1_EN, GPIOF_OUT_INIT_HIGH, "PLD_COM1_EN" },
{ PLD_COM2_EN, GPIOF_OUT_INIT_HIGH, "PLD_COM2_EN" },
{ PLD_CODEC_EN, GPIOF_OUT_INIT_LOW, "PLD_CODEC_EN" },
{ PLD_LCDEN_EN, GPIOF_OUT_INIT_LOW, "PLD_LCDEN_EN" },
{ PLD_TCH_EN, GPIOF_OUT_INIT_LOW, "PLD_TCH_EN" },
{ P720T_USERLED,GPIOF_OUT_INIT_LOW, "USER_LED" },
};
static struct resource p720t_mmgpio_resource[] __initdata = {
DEFINE_RES_MEM_NAMED(0, 4, "dat"),
};
static struct bgpio_pdata p720t_mmgpio_pdata = {
.ngpio = 8,
};
static struct platform_device p720t_mmgpio __initdata = {
.name = "basic-mmio-gpio",
.id = -1,
.resource = p720t_mmgpio_resource,
.num_resources = ARRAY_SIZE(p720t_mmgpio_resource),
.dev = {
.platform_data = &p720t_mmgpio_pdata,
},
};
static void __init p720t_mmgpio_init(void __iomem *addrbase, int gpiobase)
{
p720t_mmgpio_resource[0].start = (unsigned long)addrbase;
p720t_mmgpio_pdata.base = gpiobase;
platform_device_register(&p720t_mmgpio);
}
static struct {
void __iomem *addrbase;
int gpiobase;
} mmgpios[] __initconst = {
{ PLD_INT, PLD_INT_MMGPIO_BASE },
{ PLD_PWR, PLD_PWR_MMGPIO_BASE },
{ PLD_KBD, PLD_KBD_MMGPIO_BASE },
{ PLD_SPI, PLD_SPI_MMGPIO_BASE },
{ PLD_IO, PLD_IO_MMGPIO_BASE },
{ PLD_IRDA, PLD_IRDA_MMGPIO_BASE },
{ PLD_COM2, PLD_COM2_MMGPIO_BASE },
{ PLD_COM1, PLD_COM1_MMGPIO_BASE },
{ PLD_AUD, PLD_AUD_MMGPIO_BASE },
{ PLD_CF, PLD_CF_MMGPIO_BASE },
{ PLD_SDC, PLD_SDC_MMGPIO_BASE },
{ PLD_CODEC, PLD_CODEC_MMGPIO_BASE },
{ PLD_BRITE, PLD_BRITE_MMGPIO_BASE },
{ PLD_LCDEN, PLD_LCDEN_MMGPIO_BASE },
{ PLD_TCH, PLD_TCH_MMGPIO_BASE },
{ PLD_GPIO, PLD_GPIO_MMGPIO_BASE },
};
static struct resource p720t_nand_resource[] __initdata = {
DEFINE_RES_MEM(P720T_NAND_BASE, SZ_4),
};
static struct mtd_partition p720t_nand_parts[] __initdata = {
{
.name = "Flash partition 1",
.offset = 0,
.size = SZ_2M,
},
{
.name = "Flash partition 2",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
},
};
static struct gpio_nand_platdata p720t_nand_pdata __initdata = {
.gpio_rdy = -1,
.gpio_nce = P720T_NAND_NCE,
.gpio_ale = P720T_NAND_ALE,
.gpio_cle = P720T_NAND_CLE,
.gpio_nwp = -1,
.chip_delay = 15,
.parts = p720t_nand_parts,
.num_parts = ARRAY_SIZE(p720t_nand_parts),
};
static struct platform_device p720t_nand_pdev __initdata = {
.name = "gpio-nand",
.id = -1,
.resource = p720t_nand_resource,
.num_resources = ARRAY_SIZE(p720t_nand_resource),
.dev = {
.platform_data = &p720t_nand_pdata,
},
};
static void p720t_lcd_power_set(struct plat_lcd_data *pd, unsigned int power)
{
if (power) {
gpio_set_value(PLD_LCDEN_EN, 1);
gpio_set_value(PLD_S1_ON, 1);
gpio_set_value(PLD_S2_ON, 1);
gpio_set_value(PLD_S4_ON, 1);
} else {
gpio_set_value(PLD_S1_ON, 0);
gpio_set_value(PLD_S2_ON, 0);
gpio_set_value(PLD_S4_ON, 0);
gpio_set_value(PLD_LCDEN_EN, 0);
}
}
static struct plat_lcd_data p720t_lcd_power_pdata = {
.set_power = p720t_lcd_power_set,
};
static void p720t_lcd_backlight_set_intensity(int intensity)
{
gpio_set_value(PLD_S3_ON, intensity);
}
static struct generic_bl_info p720t_lcd_backlight_pdata = {
.name = "lcd-backlight.0",
.default_intensity = 0x01,
.max_intensity = 0x01,
.set_bl_intensity = p720t_lcd_backlight_set_intensity,
};
static void __init
fixup_p720t(struct tag *tag, char **cmdline)
{
/*
* Our bootloader doesn't setup any tags (yet).
*/
if (tag->hdr.tag != ATAG_CORE) {
tag->hdr.tag = ATAG_CORE;
tag->hdr.size = tag_size(tag_core);
tag->u.core.flags = 0;
tag->u.core.pagesize = PAGE_SIZE;
tag->u.core.rootdev = 0x0100;
tag = tag_next(tag);
tag->hdr.tag = ATAG_MEM;
tag->hdr.size = tag_size(tag_mem32);
tag->u.mem.size = 4096;
tag->u.mem.start = PHYS_OFFSET;
tag = tag_next(tag);
tag->hdr.tag = ATAG_NONE;
tag->hdr.size = 0;
}
}
static struct gpio_led p720t_gpio_leds[] = {
{
.name = "User LED",
.default_trigger = "heartbeat",
.gpio = P720T_USERLED,
},
};
static struct gpio_led_platform_data p720t_gpio_led_pdata __initdata = {
.leds = p720t_gpio_leds,
.num_leds = ARRAY_SIZE(p720t_gpio_leds),
};
static void __init p720t_init(void)
{
int i;
clps711x_devices_init();
for (i = 0; i < ARRAY_SIZE(mmgpios); i++)
p720t_mmgpio_init(mmgpios[i].addrbase, mmgpios[i].gpiobase);
platform_device_register(&p720t_nand_pdev);
}
static void __init p720t_init_late(void)
{
WARN_ON(gpio_request_array(p720t_gpios, ARRAY_SIZE(p720t_gpios)));
platform_device_register_data(NULL, "platform-lcd", 0,
&p720t_lcd_power_pdata,
sizeof(p720t_lcd_power_pdata));
platform_device_register_data(NULL, "generic-bl", 0,
&p720t_lcd_backlight_pdata,
sizeof(p720t_lcd_backlight_pdata));
platform_device_register_simple("video-clps711x", 0, NULL, 0);
platform_device_register_data(NULL, "leds-gpio", 0,
&p720t_gpio_led_pdata,
sizeof(p720t_gpio_led_pdata));
}
MACHINE_START(P720T, "ARM-Prospector720T")
/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
.atag_offset = 0x100,
.fixup = fixup_p720t,
.map_io = clps711x_map_io,
.init_irq = clps711x_init_irq,
.init_time = clps711x_timer_init,
.init_machine = p720t_init,
.init_late = p720t_init_late,
.restart = clps711x_restart,
MACHINE_END