/*
* Hardware definitions for the Toshiba eseries PDAs
*
* Copyright (c) 2003 Ian Molton <spyro@f2s.com>
*
* This file is licensed under
* the terms of the GNU General Public License version 2. This program
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <asm/setup.h>
#include <asm/mach/arch.h>
#include <asm/mach-types.h>
#include <mach/pxa25x.h>
#include <mach/eseries-gpio.h>
#include <mach/udc.h>
#include <mach/irda.h>
#include "generic.h"
#include "clock.h"
/* Only e800 has 128MB RAM */
void __init eseries_fixup(struct machine_desc *desc,
struct tag *tags, char **cmdline, struct meminfo *mi)
{
mi->nr_banks=1;
mi->bank[0].start = 0xa0000000;
mi->bank[0].node = 0;
if (machine_is_e800())
mi->bank[0].size = (128*1024*1024);
else
mi->bank[0].size = (64*1024*1024);
}
struct pxa2xx_udc_mach_info e7xx_udc_mach_info = {
.gpio_vbus = GPIO_E7XX_USB_DISC,
.gpio_pullup = GPIO_E7XX_USB_PULLUP,
.gpio_pullup_inverted = 1
};
static void e7xx_irda_transceiver_mode(struct device *dev, int mode)
{
if (mode & IR_OFF) {
gpio_set_value(GPIO_E7XX_IR_OFF, 1);
pxa2xx_transceiver_mode(dev, mode);
} else {
pxa2xx_transceiver_mode(dev, mode);
gpio_set_value(GPIO_E7XX_IR_OFF, 0);
}
}
int e7xx_irda_init(void)
{
int ret;
ret = gpio_request(GPIO_E7XX_IR_OFF, "IrDA power");
if (ret)
goto out;
ret = gpio_direction_output(GPIO_E7XX_IR_OFF, 0);
if (ret)
goto out;
e7xx_irda_transceiver_mode(NULL, IR_SIRMODE | IR_OFF);
out:
return ret;
}
static void e7xx_irda_shutdown(struct device *dev)
{
e7xx_irda_transceiver_mode(dev, IR_SIRMODE | IR_OFF);
gpio_free(GPIO_E7XX_IR_OFF);
}
struct pxaficp_platform_data e7xx_ficp_platform_data = {
.transceiver_cap = IR_SIRMODE | IR_OFF,
.transceiver_mode = e7xx_irda_transceiver_mode,
.shutdown = e7xx_irda_shutdown,
};
int eseries_tmio_enable(struct platform_device *dev)
{
/* Reset - bring SUSPEND high before PCLR */
gpio_set_value(GPIO_ESERIES_TMIO_SUSPEND, 0);
gpio_set_value(GPIO_ESERIES_TMIO_PCLR, 0);
msleep(1);
gpio_set_value(GPIO_ESERIES_TMIO_SUSPEND, 1);
msleep(1);
gpio_set_value(GPIO_ESERIES_TMIO_PCLR, 1);
msleep(1);
return 0;
}
int eseries_tmio_disable(struct platform_device *dev)
{
gpio_set_value(GPIO_ESERIES_TMIO_SUSPEND, 0);
gpio_set_value(GPIO_ESERIES_TMIO_PCLR, 0);
return 0;
}
int eseries_tmio_suspend(struct platform_device *dev)
{
gpio_set_value(GPIO_ESERIES_TMIO_SUSPEND, 0);
return 0;
}
int eseries_tmio_resume(struct platform_device *dev)
{
gpio_set_value(GPIO_ESERIES_TMIO_SUSPEND, 1);
msleep(1);
return 0;
}
void eseries_get_tmio_gpios(void)
{
gpio_request(GPIO_ESERIES_TMIO_SUSPEND, NULL);
gpio_request(GPIO_ESERIES_TMIO_PCLR, NULL);
gpio_direction_output(GPIO_ESERIES_TMIO_SUSPEND, 0);
gpio_direction_output(GPIO_ESERIES_TMIO_PCLR, 0);
}
/* TMIO controller uses the same resources on all e-series machines. */
struct resource eseries_tmio_resources[] = {
[0] = {
.start = PXA_CS4_PHYS,
.end = PXA_CS4_PHYS + 0x1fffff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_GPIO(GPIO_ESERIES_TMIO_IRQ),
.end = IRQ_GPIO(GPIO_ESERIES_TMIO_IRQ),
.flags = IORESOURCE_IRQ,
},
};
/* Some e-series hardware cannot control the 32K clock */
static void clk_32k_dummy(struct clk *clk)
{
}
static const struct clkops clk_32k_dummy_ops = {
.enable = clk_32k_dummy,
.disable = clk_32k_dummy,
};
static struct clk tmio_dummy_clk = {
.ops = &clk_32k_dummy_ops,
.rate = 32768,
};
static struct clk_lookup eseries_clkregs[] = {
INIT_CLKREG(&tmio_dummy_clk, NULL, "CLK_CK32K"),
};
void eseries_register_clks(void)
{
clks_register(eseries_clkregs, ARRAY_SIZE(eseries_clkregs));
}
