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/*
* Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
*
* 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 Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/irq.h>
#include <asm/mach/arch.h>
#include <mach/hardware.h>
#include <mach/common.h>
#include <mach/mmc.h>
#include <mach/imxfb.h>
#include <mach/iomux.h>
#include "devices.h"
static int pcm970_sdhc2_get_ro(struct device *dev)
{
return gpio_get_value(GPIO_PORTC + 28);
}
static int pcm970_sdhc2_pins[] = {
PB4_PF_SD2_D0,
PB5_PF_SD2_D1,
PB6_PF_SD2_D2,
PB7_PF_SD2_D3,
PB8_PF_SD2_CMD,
PB9_PF_SD2_CLK,
};
static int pcm970_sdhc2_init(struct device *dev, irq_handler_t detect_irq, void *data)
{
int ret;
ret = mxc_gpio_setup_multiple_pins(pcm970_sdhc2_pins,
ARRAY_SIZE(pcm970_sdhc2_pins), "sdhc2");
if(ret)
return ret;
ret = request_irq(IRQ_GPIOC(29), detect_irq, 0,
"imx-mmc-detect", data);
if (ret)
goto out_release_gpio;
set_irq_type(IRQ_GPIOC(29), IRQF_TRIGGER_FALLING);
ret = gpio_request(GPIO_PORTC + 28, "imx-mmc-ro");
if (ret)
goto out_release_gpio;
mxc_gpio_mode((GPIO_PORTC | 28) | GPIO_GPIO | GPIO_IN);
gpio_direction_input(GPIO_PORTC + 28);
return 0;
out_release_gpio:
mxc_gpio_release_multiple_pins(pcm970_sdhc2_pins,
ARRAY_SIZE(pcm970_sdhc2_pins));
return ret;
}
static void pcm970_sdhc2_exit(struct device *dev, void *data)
{
free_irq(IRQ_GPIOC(29), data);
gpio_free(GPIO_PORTC + 28);
mxc_gpio_release_multiple_pins(pcm970_sdhc2_pins,
ARRAY_SIZE(pcm970_sdhc2_pins));
}
static struct imxmmc_platform_data sdhc_pdata = {
.get_ro = pcm970_sdhc2_get_ro,
.init = pcm970_sdhc2_init,
.exit = pcm970_sdhc2_exit,
};
static int mxc_fb_pins[] = {
PA5_PF_LSCLK, PA6_PF_LD0, PA7_PF_LD1, PA8_PF_LD2,
PA9_PF_LD3, PA10_PF_LD4, PA11_PF_LD5, PA12_PF_LD6,
PA13_PF_LD7, PA14_PF_LD8, PA15_PF_LD9, PA16_PF_LD10,
PA17_PF_LD11, PA18_PF_LD12, PA19_PF_LD13, PA20_PF_LD14,
PA21_PF_LD15, PA22_PF_LD16, PA23_PF_LD17, PA24_PF_REV,
PA25_PF_CLS, PA26_PF_PS, PA27_PF_SPL_SPR, PA28_PF_HSYNC,
PA29_PF_VSYNC, PA30_PF_CONTRAST, PA31_PF_OE_ACD
};
static int pcm038_fb_init(struct platform_device *pdev)
{
return mxc_gpio_setup_multiple_pins(mxc_fb_pins,
ARRAY_SIZE(mxc_fb_pins), "FB");
}
static void pcm038_fb_exit(struct platform_device *pdev)
{
mxc_gpio_release_multiple_pins(mxc_fb_pins, ARRAY_SIZE(mxc_fb_pins));
}
/*
* Connected is a portrait Sharp-QVGA display
* of type: LQ035Q7DH06
*/
static struct imx_fb_platform_data pcm038_fb_data = {
.pixclock = 188679, /* in ps (5.3MHz) */
.xres = 240,
.yres = 320,
.bpp = 16,
.hsync_len = 7,
.left_margin = 5,
.right_margin = 16,
.vsync_len = 1,
.upper_margin = 7,
.lower_margin = 9,
.fixed_screen_cpu = 0,
/*
* - HSYNC active high
* - VSYNC active high
* - clk notenabled while idle
* - clock not inverted
* - data not inverted
* - data enable low active
* - enable sharp mode
*/
.pcr = 0xFA0080C0,
.pwmr = 0x00A903FF,
.lscr1 = 0x00120300,
.dmacr = 0x00020010,
.init = pcm038_fb_init,
.exit = pcm038_fb_exit,
};
/*
* system init for baseboard usage. Will be called by pcm038 init.
*
* Add platform devices present on this baseboard and init
* them from CPU side as far as required to use them later on
*/
void __init pcm970_baseboard_init(void)
{
mxc_register_device(&mxc_fb_device, &pcm038_fb_data);
mxc_register_device(&mxc_sdhc_device1, &sdhc_pdata);
}
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