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linux/arch/arm/mach-pxa/zylonite_pxa300.c
Eric Miao 51c62982a3 [ARM] pxa: introduce pxa{25x,27x,300,320,930}.h for board usage 
Considering the header mess ATM, it is not always possible to include
the correct header files within board code. Let's keep this simple:

  <mach/pxa25x.h>  - for pxa25x based platforms
  <mach/pxa27x.h>  - for pxa27x based platforms
  <mach/pxa300.h>  - for pxa300 based platforms
  <mach/pxa320.h>  - for pxa320 based platforms
  <mach/pxa930.h>  - for pxa930 based platforms

NOTE:

1. one header one board file, they are not compatible (i.e. they have
   conflicting definitions which won't compile if included together).

2. Unless strictly necessary, the following header files are considered
   to be SoC files use _only_, and is not recommended to be included in
   board code:

    <mach/hardware.h>
    <mach/pxa-regs.h>
    <mach/pxa2xx-regs.h>
    <mach/pxa3xx-regs.h>
    <mach/mfp.h>
    <mach/mfp-pxa2xx.h>
    <mach/mfp-pxa25x.h>
    <mach/mfp-pxa27x.h>
    <mach/mfp-pxa3xx.h>
    <mach/mfp-pxa300.h>
    <mach/mfp-pxa320.h>
    <mach/mfp-pxa930.h>

Signed-off-by: Eric Miao <eric.miao@marvell.com>
2009-03-09 21:22:36 +08:00

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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/pca953x.h>
#include <linux/gpio.h>
#include <mach/pxa300.h>
#include <mach/i2c.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,
/* 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,
};
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_direction_input(gpio);
if (gpio_get_value(gpio))
id = id | 0x1;
}
/* 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();
/* MMC card detect & write protect for controller 0 */
zylonite_mmc_slot[0].gpio_cd = EXT_GPIO(0);
zylonite_mmc_slot[0].gpio_wp = EXT_GPIO(2);
/* 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);
/* MMC card detect & write protect for controller 2 */
zylonite_mmc_slot[2].gpio_cd = EXT_GPIO(30);
zylonite_mmc_slot[2].gpio_wp = EXT_GPIO(31);
}
/* GPIOs for Debug LEDs */
gpio_debug_led1 = EXT_GPIO(25);
gpio_debug_led2 = EXT_GPIO(26);
}
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