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linux/arch/arm/mach-pxa/tosa.c
Russell King dc38e2ad53 [ARM] pxa: Fix RCSR handling 
Related to d3930614e6.

RCSR is only present on PXA2xx CPUs, not on PXA3xx CPUs.  Therefore,
we should not be unconditionally writing to RCSR from generic code.

Since we now clear the RCSR status from the SoC specific PXA PM code
and before reset in the arch_reset() function, the duplication in
the corgi, poodle, spitz and tosa code can be removed.

Acked-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-05-08 18:04:02 +01:00

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11 KiB
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/*
* Support for Sharp SL-C6000x PDAs
* Model: (Tosa)
*
* Copyright (c) 2005 Dirk Opfer
*
* Based on code written by Sharp/Lineo for 2.4 kernels
*
* 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/platform_device.h>
#include <linux/major.h>
#include <linux/fs.h>
#include <linux/interrupt.h>
#include <linux/mmc/host.h>
#include <linux/pm.h>
#include <linux/delay.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/gpio.h>
#include <asm/setup.h>
#include <asm/memory.h>
#include <asm/mach-types.h>
#include <asm/hardware.h>
#include <asm/irq.h>
#include <asm/system.h>
#include <asm/arch/pxa-regs.h>
#include <asm/arch/pxa2xx-regs.h>
#include <asm/arch/mfp-pxa25x.h>
#include <asm/arch/irda.h>
#include <asm/arch/i2c.h>
#include <asm/arch/mmc.h>
#include <asm/arch/udc.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <asm/arch/tosa.h>
#include <asm/hardware/scoop.h>
#include <asm/mach/sharpsl_param.h>
#include "generic.h"
#include "devices.h"
static unsigned long tosa_pin_config[] = {
GPIO78_nCS_2, /* Scoop */
GPIO80_nCS_4, /* tg6393xb */
GPIO33_nCS_5, /* Scoop */
// GPIO76 CARD_VCC_ON1
GPIO19_GPIO, /* Reset out */
GPIO1_RST | WAKEUP_ON_EDGE_FALL,
GPIO0_GPIO | WAKEUP_ON_EDGE_FALL, /* WAKE_UP */
GPIO2_GPIO | WAKEUP_ON_EDGE_BOTH, /* AC_IN */
GPIO3_GPIO | WAKEUP_ON_EDGE_FALL, /* RECORD */
GPIO4_GPIO | WAKEUP_ON_EDGE_FALL, /* SYNC */
GPIO20_GPIO, /* EAR_IN */
GPIO22_GPIO, /* On */
GPIO5_GPIO, /* USB_IN */
GPIO32_GPIO, /* Pen IRQ */
GPIO7_GPIO, /* Jacket Detect */
GPIO14_GPIO, /* BAT0_CRG */
GPIO12_GPIO, /* BAT1_CRG */
GPIO17_GPIO, /* BAT0_LOW */
GPIO84_GPIO, /* BAT1_LOW */
GPIO38_GPIO, /* BAT_LOCK */
GPIO11_3_6MHz,
GPIO15_GPIO, /* TC6393XB IRQ */
GPIO18_RDY,
GPIO27_GPIO, /* LCD Sync */
/* MMC */
GPIO6_MMC_CLK,
GPIO8_MMC_CS0,
GPIO9_GPIO, /* Detect */
// GPIO10 nSD_INT
/* CF */
GPIO13_GPIO, /* CD_IRQ */
GPIO21_GPIO, /* Main Slot IRQ */
GPIO36_GPIO, /* Jacket Slot IRQ */
GPIO48_nPOE,
GPIO49_nPWE,
GPIO50_nPIOR,
GPIO51_nPIOW,
GPIO52_nPCE_1,
GPIO53_nPCE_2,
GPIO54_nPSKTSEL,
GPIO55_nPREG,
GPIO56_nPWAIT,
GPIO57_nIOIS16,
/* AC97 */
GPIO31_AC97_SYNC,
GPIO30_AC97_SDATA_OUT,
GPIO28_AC97_BITCLK,
GPIO29_AC97_SDATA_IN_0,
// GPIO79 nAUD_IRQ
/* FFUART */
GPIO34_FFUART_RXD,
GPIO35_FFUART_CTS,
GPIO37_FFUART_DSR,
GPIO39_FFUART_TXD,
GPIO40_FFUART_DTR,
GPIO41_FFUART_RTS,
/* BTUART */
GPIO42_BTUART_RXD,
GPIO43_BTUART_TXD,
GPIO44_BTUART_CTS,
GPIO45_BTUART_RTS,
/* IrDA */
GPIO46_STUART_RXD,
GPIO47_STUART_TXD,
/* Keybd */
GPIO58_GPIO,
GPIO59_GPIO,
GPIO60_GPIO,
GPIO61_GPIO,
GPIO62_GPIO,
GPIO63_GPIO,
GPIO64_GPIO,
GPIO65_GPIO,
GPIO66_GPIO,
GPIO67_GPIO,
GPIO68_GPIO,
GPIO69_GPIO,
GPIO70_GPIO,
GPIO71_GPIO,
GPIO72_GPIO,
GPIO73_GPIO,
GPIO74_GPIO,
GPIO75_GPIO,
/* SPI */
GPIO81_SSP2_CLK_OUT,
GPIO82_SSP2_FRM_OUT,
GPIO83_SSP2_TXD,
};
/*
* SCOOP Device
*/
static struct resource tosa_scoop_resources[] = {
[0] = {
.start = TOSA_CF_PHYS,
.end = TOSA_CF_PHYS + 0xfff,
.flags = IORESOURCE_MEM,
},
};
static struct scoop_config tosa_scoop_setup = {
.io_dir = TOSA_SCOOP_IO_DIR,
.gpio_base = TOSA_SCOOP_GPIO_BASE,
};
static struct platform_device tosascoop_device = {
.name = "sharp-scoop",
.id = 0,
.dev = {
.platform_data = &tosa_scoop_setup,
},
.num_resources = ARRAY_SIZE(tosa_scoop_resources),
.resource = tosa_scoop_resources,
};
/*
* SCOOP Device Jacket
*/
static struct resource tosa_scoop_jc_resources[] = {
[0] = {
.start = TOSA_SCOOP_PHYS + 0x40,
.end = TOSA_SCOOP_PHYS + 0xfff,
.flags = IORESOURCE_MEM,
},
};
static struct scoop_config tosa_scoop_jc_setup = {
.io_dir = TOSA_SCOOP_JC_IO_DIR,
.gpio_base = TOSA_SCOOP_JC_GPIO_BASE,
};
static struct platform_device tosascoop_jc_device = {
.name = "sharp-scoop",
.id = 1,
.dev = {
.platform_data = &tosa_scoop_jc_setup,
.parent = &tosascoop_device.dev,
},
.num_resources = ARRAY_SIZE(tosa_scoop_jc_resources),
.resource = tosa_scoop_jc_resources,
};
/*
* PCMCIA
*/
static struct scoop_pcmcia_dev tosa_pcmcia_scoop[] = {
{
.dev = &tosascoop_device.dev,
.irq = TOSA_IRQ_GPIO_CF_IRQ,
.cd_irq = TOSA_IRQ_GPIO_CF_CD,
.cd_irq_str = "PCMCIA0 CD",
},{
.dev = &tosascoop_jc_device.dev,
.irq = TOSA_IRQ_GPIO_JC_CF_IRQ,
.cd_irq = -1,
},
};
static struct scoop_pcmcia_config tosa_pcmcia_config = {
.devs = &tosa_pcmcia_scoop[0],
.num_devs = 2,
};
/*
* USB Device Controller
*/
static struct pxa2xx_udc_mach_info udc_info __initdata = {
.gpio_pullup = TOSA_GPIO_USB_PULLUP,
.gpio_vbus = TOSA_GPIO_USB_IN,
.gpio_vbus_inverted = 1,
};
/*
* MMC/SD Device
*/
static struct pxamci_platform_data tosa_mci_platform_data;
static int tosa_mci_init(struct device *dev, irq_handler_t tosa_detect_int, void *data)
{
int err;
tosa_mci_platform_data.detect_delay = msecs_to_jiffies(250);
err = request_irq(TOSA_IRQ_GPIO_nSD_DETECT, tosa_detect_int,
IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"MMC/SD card detect", data);
if (err) {
printk(KERN_ERR "tosa_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
goto err_irq;
}
err = gpio_request(TOSA_GPIO_SD_WP, "sd_wp");
if (err) {
printk(KERN_ERR "tosa_mci_init: can't request SD_WP gpio\n");
goto err_gpio_wp;
}
err = gpio_direction_input(TOSA_GPIO_SD_WP);
if (err)
goto err_gpio_wp_dir;
err = gpio_request(TOSA_GPIO_PWR_ON, "sd_pwr");
if (err) {
printk(KERN_ERR "tosa_mci_init: can't request SD_PWR gpio\n");
goto err_gpio_pwr;
}
err = gpio_direction_output(TOSA_GPIO_PWR_ON, 0);
if (err)
goto err_gpio_pwr_dir;
return 0;
err_gpio_pwr_dir:
gpio_free(TOSA_GPIO_PWR_ON);
err_gpio_pwr:
err_gpio_wp_dir:
gpio_free(TOSA_GPIO_SD_WP);
err_gpio_wp:
free_irq(TOSA_IRQ_GPIO_nSD_DETECT, data);
err_irq:
return err;
}
static void tosa_mci_setpower(struct device *dev, unsigned int vdd)
{
struct pxamci_platform_data* p_d = dev->platform_data;
if (( 1 << vdd) & p_d->ocr_mask) {
gpio_set_value(TOSA_GPIO_PWR_ON, 1);
} else {
gpio_set_value(TOSA_GPIO_PWR_ON, 0);
}
}
static int tosa_mci_get_ro(struct device *dev)
{
return gpio_get_value(TOSA_GPIO_SD_WP);
}
static void tosa_mci_exit(struct device *dev, void *data)
{
gpio_free(TOSA_GPIO_PWR_ON);
gpio_free(TOSA_GPIO_SD_WP);
free_irq(TOSA_IRQ_GPIO_nSD_DETECT, data);
}
static struct pxamci_platform_data tosa_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.init = tosa_mci_init,
.get_ro = tosa_mci_get_ro,
.setpower = tosa_mci_setpower,
.exit = tosa_mci_exit,
};
/*
* Irda
*/
static int tosa_irda_startup(struct device *dev)
{
int ret;
ret = gpio_request(TOSA_GPIO_IR_POWERDWN, "IrDA powerdown");
if (ret)
return ret;
ret = gpio_direction_output(TOSA_GPIO_IR_POWERDWN, 0);
if (ret)
gpio_free(TOSA_GPIO_IR_POWERDWN);
return ret;
}
static void tosa_irda_shutdown(struct device *dev)
{
gpio_free(TOSA_GPIO_IR_POWERDWN);
}
static void tosa_irda_transceiver_mode(struct device *dev, int mode)
{
gpio_set_value(TOSA_GPIO_IR_POWERDWN, !(mode & IR_OFF));
}
static struct pxaficp_platform_data tosa_ficp_platform_data = {
.transceiver_cap = IR_SIRMODE | IR_OFF,
.transceiver_mode = tosa_irda_transceiver_mode,
.startup = tosa_irda_startup,
.shutdown = tosa_irda_shutdown,
};
/*
* Tosa Keyboard
*/
static struct platform_device tosakbd_device = {
.name = "tosa-keyboard",
.id = -1,
};
static struct gpio_keys_button tosa_gpio_keys[] = {
/*
* Two following keys are directly tied to "ON" button of tosa. Why?
* The first one can be used as a wakeup source, the second can't;
* also the first one is OR of ac_powered and on_button.
*/
{
.type = EV_PWR,
.code = KEY_RESERVED,
.gpio = TOSA_GPIO_POWERON,
.desc = "Poweron",
.wakeup = 1,
.active_low = 1,
},
{
.type = EV_PWR,
.code = KEY_SUSPEND,
.gpio = TOSA_GPIO_ON_KEY,
.desc = "On key",
/*
* can't be used as wakeup
* .wakeup = 1,
*/
.active_low = 1,
},
{
.type = EV_KEY,
.code = TOSA_KEY_RECORD,
.gpio = TOSA_GPIO_RECORD_BTN,
.desc = "Record Button",
.wakeup = 1,
.active_low = 1,
},
{
.type = EV_KEY,
.code = TOSA_KEY_SYNC,
.gpio = TOSA_GPIO_SYNC,
.desc = "Sync Button",
.wakeup = 1,
.active_low = 1,
},
};
static struct gpio_keys_platform_data tosa_gpio_keys_platform_data = {
.buttons = tosa_gpio_keys,
.nbuttons = ARRAY_SIZE(tosa_gpio_keys),
};
static struct platform_device tosa_gpio_keys_device = {
.name = "gpio-keys",
.id = -1,
.dev = {
.platform_data = &tosa_gpio_keys_platform_data,
},
};
/*
* Tosa LEDs
*/
static struct gpio_led tosa_gpio_leds[] = {
{
.name = "tosa:amber:charge",
.default_trigger = "main-battery-charging",
.gpio = TOSA_GPIO_CHRG_ERR_LED,
},
{
.name = "tosa:green:mail",
.default_trigger = "nand-disk",
.gpio = TOSA_GPIO_NOTE_LED,
},
{
.name = "tosa:dual:wlan",
.default_trigger = "none",
.gpio = TOSA_GPIO_WLAN_LED,
},
{
.name = "tosa:blue:bluetooth",
.default_trigger = "none",
.gpio = TOSA_GPIO_BT_LED,
},
};
static struct gpio_led_platform_data tosa_gpio_leds_platform_data = {
.leds = tosa_gpio_leds,
.num_leds = ARRAY_SIZE(tosa_gpio_leds),
};
static struct platform_device tosaled_device = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &tosa_gpio_leds_platform_data,
},
};
static struct platform_device *devices[] __initdata = {
&tosascoop_device,
&tosascoop_jc_device,
&tosakbd_device,
&tosa_gpio_keys_device,
&tosaled_device,
};
static void tosa_poweroff(void)
{
pxa_gpio_mode(TOSA_GPIO_ON_RESET | GPIO_OUT);
GPSR(TOSA_GPIO_ON_RESET) = GPIO_bit(TOSA_GPIO_ON_RESET);
mdelay(1000);
arm_machine_restart('h');
}
static void tosa_restart(char mode)
{
/* Bootloader magic for a reboot */
if((MSC0 & 0xffff0000) == 0x7ff00000)
MSC0 = (MSC0 & 0xffff) | 0x7ee00000;
tosa_poweroff();
}
static void __init tosa_init(void)
{
pxa2xx_mfp_config(ARRAY_AND_SIZE(tosa_pin_config));
gpio_set_wake(MFP_PIN_GPIO1, 1);
/* We can't pass to gpio-keys since it will drop the Reset altfunc */
pm_power_off = tosa_poweroff;
arm_pm_restart = tosa_restart;
PCFR |= PCFR_OPDE;
/* enable batt_fault */
PMCR = 0x01;
pxa_set_mci_info(&tosa_mci_platform_data);
pxa_set_udc_info(&udc_info);
pxa_set_ficp_info(&tosa_ficp_platform_data);
pxa_set_i2c_info(NULL);
platform_scoop_config = &tosa_pcmcia_config;
platform_add_devices(devices, ARRAY_SIZE(devices));
}
static void __init fixup_tosa(struct machine_desc *desc,
struct tag *tags, char **cmdline, struct meminfo *mi)
{
sharpsl_save_param();
mi->nr_banks=1;
mi->bank[0].start = 0xa0000000;
mi->bank[0].node = 0;
mi->bank[0].size = (64*1024*1024);
}
MACHINE_START(TOSA, "SHARP Tosa")
.phys_io = 0x40000000,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.fixup = fixup_tosa,
.map_io = pxa_map_io,
.init_irq = pxa25x_init_irq,
.init_machine = tosa_init,
.timer = &pxa_timer,
MACHINE_END
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