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alistair23-linux/arch/arm/mach-pxa/zylonite_pxa300.c
Sebastian Andrzej Siewior b459396ee9 ARM: pxa2xx: reorganize I2C files 
This patch moves the platform data definition from
arch/arm/plat-pxa/include/plat/i2c.h to include/linux/i2c/pxa-i2c.h so
it can be accessed from x86 the same way as on ARM.

This change should make no functional change to the PXA code. The move
is verified by building the following defconfigs:
  cm_x2xx_defconfig corgi_defconfig em_x270_defconfig ezx_defconfig
  imote2_defconfig pxa3xx_defconfig spitz_defconfig zeus_defconfig
  raumfeld_defconfig magician_defconfig mmp2_defconfig pxa168_defconfig
  pxa910_defconfig

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2011-03-21 09:09:33 +00:00

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/*
* linux/arch/arm/mach-pxa/zylonite_pxa300.c
*
* PXA300/PXA310 specific support code for the
* PXA3xx Development Platform (aka Zylonite)
*
* Copyright (C) 2007 Marvell Internation Ltd.
* 2007-08-21: eric miao <eric.miao@marvell.com>
* initial version
*
* 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/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/i2c.h>
#include <linux/i2c/pxa-i2c.h>
#include <linux/i2c/pca953x.h>
#include <linux/gpio.h>
#include <mach/pxa300.h>
#include <mach/zylonite.h>
#include "generic.h"
/* PXA300/PXA310 common configurations */
static mfp_cfg_t common_mfp_cfg[] __initdata = {
/* LCD */
GPIO54_LCD_LDD_0,
GPIO55_LCD_LDD_1,
GPIO56_LCD_LDD_2,
GPIO57_LCD_LDD_3,
GPIO58_LCD_LDD_4,
GPIO59_LCD_LDD_5,
GPIO60_LCD_LDD_6,
GPIO61_LCD_LDD_7,
GPIO62_LCD_LDD_8,
GPIO63_LCD_LDD_9,
GPIO64_LCD_LDD_10,
GPIO65_LCD_LDD_11,
GPIO66_LCD_LDD_12,
GPIO67_LCD_LDD_13,
GPIO68_LCD_LDD_14,
GPIO69_LCD_LDD_15,
GPIO70_LCD_LDD_16,
GPIO71_LCD_LDD_17,
GPIO72_LCD_FCLK,
GPIO73_LCD_LCLK,
GPIO74_LCD_PCLK,
GPIO75_LCD_BIAS,
GPIO76_LCD_VSYNC,
GPIO127_LCD_CS_N,
GPIO20_PWM3_OUT, /* backlight */
/* BTUART */
GPIO111_UART2_RTS,
GPIO112_UART2_RXD | MFP_LPM_EDGE_FALL,
GPIO113_UART2_TXD,
GPIO114_UART2_CTS | MFP_LPM_EDGE_BOTH,
/* STUART */
GPIO109_UART3_TXD,
GPIO110_UART3_RXD | MFP_LPM_EDGE_FALL,
/* AC97 */
GPIO23_AC97_nACRESET,
GPIO24_AC97_SYSCLK,
GPIO29_AC97_BITCLK,
GPIO25_AC97_SDATA_IN_0,
GPIO27_AC97_SDATA_OUT,
GPIO28_AC97_SYNC,
GPIO17_GPIO, /* SDATA_IN_1 but unused - configure to GPIO */
/* SSP3 */
GPIO91_SSP3_SCLK,
GPIO92_SSP3_FRM,
GPIO93_SSP3_TXD,
GPIO94_SSP3_RXD,
/* WM9713 IRQ */
GPIO26_GPIO,
/* Keypad */
GPIO107_KP_DKIN_0 | MFP_LPM_EDGE_BOTH,
GPIO108_KP_DKIN_1 | MFP_LPM_EDGE_BOTH,
GPIO115_KP_MKIN_0 | MFP_LPM_EDGE_BOTH,
GPIO116_KP_MKIN_1 | MFP_LPM_EDGE_BOTH,
GPIO117_KP_MKIN_2 | MFP_LPM_EDGE_BOTH,
GPIO118_KP_MKIN_3 | MFP_LPM_EDGE_BOTH,
GPIO119_KP_MKIN_4 | MFP_LPM_EDGE_BOTH,
GPIO120_KP_MKIN_5 | MFP_LPM_EDGE_BOTH,
GPIO2_2_KP_MKIN_6 | MFP_LPM_EDGE_BOTH,
GPIO3_2_KP_MKIN_7 | MFP_LPM_EDGE_BOTH,
GPIO121_KP_MKOUT_0,
GPIO122_KP_MKOUT_1,
GPIO123_KP_MKOUT_2,
GPIO124_KP_MKOUT_3,
GPIO125_KP_MKOUT_4,
GPIO4_2_KP_MKOUT_5,
GPIO5_2_KP_MKOUT_6,
GPIO6_2_KP_MKOUT_7,
/* MMC1 */
GPIO3_MMC1_DAT0,
GPIO4_MMC1_DAT1 | MFP_LPM_EDGE_BOTH,
GPIO5_MMC1_DAT2,
GPIO6_MMC1_DAT3,
GPIO7_MMC1_CLK,
GPIO8_MMC1_CMD, /* CMD0 for slot 0 */
GPIO15_GPIO, /* CMD1 default as GPIO for slot 0 */
/* MMC2 */
GPIO9_MMC2_DAT0,
GPIO10_MMC2_DAT1 | MFP_LPM_EDGE_BOTH,
GPIO11_MMC2_DAT2,
GPIO12_MMC2_DAT3,
GPIO13_MMC2_CLK,
GPIO14_MMC2_CMD,
/* USB Host */
GPIO0_2_USBH_PEN,
GPIO1_2_USBH_PWR,
/* Standard I2C */
GPIO21_I2C_SCL,
GPIO22_I2C_SDA,
/* GPIO */
GPIO18_GPIO | MFP_PULL_HIGH, /* GPIO Expander #0 INT_N */
GPIO19_GPIO | MFP_PULL_HIGH, /* GPIO Expander #1 INT_N */
};
static mfp_cfg_t pxa300_mfp_cfg[] __initdata = {
/* FFUART */
GPIO30_UART1_RXD | MFP_LPM_EDGE_FALL,
GPIO31_UART1_TXD,
GPIO32_UART1_CTS,
GPIO37_UART1_RTS,
GPIO33_UART1_DCD,
GPIO34_UART1_DSR | MFP_LPM_EDGE_FALL,
GPIO35_UART1_RI,
GPIO36_UART1_DTR,
/* Ethernet */
GPIO2_nCS3,
GPIO99_GPIO,
};
static mfp_cfg_t pxa310_mfp_cfg[] __initdata = {
/* FFUART */
GPIO99_UART1_RXD | MFP_LPM_EDGE_FALL,
GPIO100_UART1_TXD,
GPIO101_UART1_CTS,
GPIO106_UART1_RTS,
/* Ethernet */
GPIO2_nCS3,
GPIO102_GPIO,
/* MMC3 */
GPIO7_2_MMC3_DAT0,
GPIO8_2_MMC3_DAT1 | MFP_LPM_EDGE_BOTH,
GPIO9_2_MMC3_DAT2,
GPIO10_2_MMC3_DAT3,
GPIO103_MMC3_CLK,
GPIO105_MMC3_CMD,
};
#define NUM_LCD_DETECT_PINS 7
static int lcd_detect_pins[] __initdata = {
MFP_PIN_GPIO71, /* LCD_LDD_17 - ORIENT */
MFP_PIN_GPIO70, /* LCD_LDD_16 - LCDID[5] */
MFP_PIN_GPIO75, /* LCD_BIAS - LCDID[4] */
MFP_PIN_GPIO73, /* LCD_LCLK - LCDID[3] */
MFP_PIN_GPIO72, /* LCD_FCLK - LCDID[2] */
MFP_PIN_GPIO127,/* LCD_CS_N - LCDID[1] */
MFP_PIN_GPIO76, /* LCD_VSYNC - LCDID[0] */
};
static void __init zylonite_detect_lcd_panel(void)
{
unsigned long mfpr_save[NUM_LCD_DETECT_PINS];
int i, gpio, id = 0;
/* save the original MFP settings of these pins and configure
* them as GPIO Input, DS01X, Pull Neither, Edge Clear
*/
for (i = 0; i < NUM_LCD_DETECT_PINS; i++) {
mfpr_save[i] = pxa3xx_mfp_read(lcd_detect_pins[i]);
pxa3xx_mfp_write(lcd_detect_pins[i], 0x8440);
}
for (i = 0; i < NUM_LCD_DETECT_PINS; i++) {
id = id << 1;
gpio = mfp_to_gpio(lcd_detect_pins[i]);
gpio_request(gpio, "LCD_ID_PINS");
gpio_direction_input(gpio);
if (gpio_get_value(gpio))
id = id | 0x1;
gpio_free(gpio);
}
/* lcd id, flush out bit 1 */
lcd_id = id & 0x3d;
/* lcd orientation, portrait or landscape */
lcd_orientation = (id >> 6) & 0x1;
/* restore the original MFP settings */
for (i = 0; i < NUM_LCD_DETECT_PINS; i++)
pxa3xx_mfp_write(lcd_detect_pins[i], mfpr_save[i]);
}
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
static struct pca953x_platform_data gpio_exp[] = {
[0] = {
.gpio_base = 128,
},
[1] = {
.gpio_base = 144,
},
};
static struct i2c_board_info zylonite_i2c_board_info[] = {
{
.type = "pca9539",
.addr = 0x74,
.platform_data = &gpio_exp[0],
.irq = IRQ_GPIO(18),
}, {
.type = "pca9539",
.addr = 0x75,
.platform_data = &gpio_exp[1],
.irq = IRQ_GPIO(19),
},
};
static void __init zylonite_init_i2c(void)
{
pxa_set_i2c_info(NULL);
i2c_register_board_info(0, ARRAY_AND_SIZE(zylonite_i2c_board_info));
}
#else
static inline void zylonite_init_i2c(void) {}
#endif
void __init zylonite_pxa300_init(void)
{
if (cpu_is_pxa300() || cpu_is_pxa310()) {
/* initialize MFP */
pxa3xx_mfp_config(ARRAY_AND_SIZE(common_mfp_cfg));
/* detect LCD panel */
zylonite_detect_lcd_panel();
/* WM9713 IRQ */
wm9713_irq = mfp_to_gpio(MFP_PIN_GPIO26);
zylonite_init_i2c();
}
if (cpu_is_pxa300()) {
pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa300_mfp_cfg));
gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO99);
}
if (cpu_is_pxa310()) {
pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa310_mfp_cfg));
gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO102);
}
/* GPIOs for Debug LEDs */
gpio_debug_led1 = EXT_GPIO(25);
gpio_debug_led2 = EXT_GPIO(26);
}
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