mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-22 20:23:57 +08:00
176 lines
3.8 KiB
C
176 lines
3.8 KiB
C
/*
|
|
* 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/gpio.h>
|
|
#include <linux/irq.h>
|
|
#include <linux/platform_device.h>
|
|
|
|
#include <asm/mach/arch.h>
|
|
|
|
#include <mach/common.h>
|
|
#include <mach/iomux.h>
|
|
#include <mach/imxfb.h>
|
|
#include <mach/hardware.h>
|
|
#include <mach/mmc.h>
|
|
|
|
#include "devices.h"
|
|
|
|
static int pcm970_pins[] = {
|
|
/* SDHC */
|
|
PB4_PF_SD2_D0,
|
|
PB5_PF_SD2_D1,
|
|
PB6_PF_SD2_D2,
|
|
PB7_PF_SD2_D3,
|
|
PB8_PF_SD2_CMD,
|
|
PB9_PF_SD2_CLK,
|
|
GPIO_PORTC | 28 | GPIO_GPIO | GPIO_IN, /* card detect */
|
|
/* display */
|
|
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,
|
|
/*
|
|
* it seems the data line misses a pullup, so we must enable
|
|
* the internal pullup as a local workaround
|
|
*/
|
|
PD17_PF_I2C_DATA | GPIO_PUEN,
|
|
PD18_PF_I2C_CLK,
|
|
/* Camera */
|
|
PB10_PF_CSI_D0,
|
|
PB11_PF_CSI_D1,
|
|
PB12_PF_CSI_D2,
|
|
PB13_PF_CSI_D3,
|
|
PB14_PF_CSI_D4,
|
|
PB15_PF_CSI_MCLK,
|
|
PB16_PF_CSI_PIXCLK,
|
|
PB17_PF_CSI_D5,
|
|
PB18_PF_CSI_D6,
|
|
PB19_PF_CSI_D7,
|
|
PB20_PF_CSI_VSYNC,
|
|
PB21_PF_CSI_HSYNC,
|
|
};
|
|
|
|
static int pcm970_sdhc2_get_ro(struct device *dev)
|
|
{
|
|
return gpio_get_value(GPIO_PORTC + 28);
|
|
}
|
|
|
|
static int pcm970_sdhc2_init(struct device *dev, irq_handler_t detect_irq, void *data)
|
|
{
|
|
int ret;
|
|
|
|
ret = request_irq(IRQ_GPIOC(29), detect_irq, IRQF_TRIGGER_FALLING,
|
|
"imx-mmc-detect", data);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = gpio_request(GPIO_PORTC + 28, "imx-mmc-ro");
|
|
if (ret) {
|
|
free_irq(IRQ_GPIOC(29), data);
|
|
return ret;
|
|
}
|
|
|
|
gpio_direction_input(GPIO_PORTC + 28);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void pcm970_sdhc2_exit(struct device *dev, void *data)
|
|
{
|
|
free_irq(IRQ_GPIOC(29), data);
|
|
gpio_free(GPIO_PORTC + 28);
|
|
}
|
|
|
|
static struct imxmmc_platform_data sdhc_pdata = {
|
|
.get_ro = pcm970_sdhc2_get_ro,
|
|
.init = pcm970_sdhc2_init,
|
|
.exit = pcm970_sdhc2_exit,
|
|
};
|
|
|
|
/*
|
|
* 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,
|
|
};
|
|
|
|
/*
|
|
* 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_gpio_setup_multiple_pins(pcm970_pins, ARRAY_SIZE(pcm970_pins),
|
|
"PCM970");
|
|
|
|
mxc_register_device(&mxc_fb_device, &pcm038_fb_data);
|
|
mxc_register_device(&mxc_sdhc_device1, &sdhc_pdata);
|
|
}
|