mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 06:34:11 +08:00
f91e4906e2
PXA mmc host driver supports card detect, read only and power gpio pin setting already. Zylonite platform driver needn't implement this any more. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
216 lines
5.0 KiB
C
216 lines
5.0 KiB
C
/*
|
|
* linux/arch/arm/mach-pxa/zylonite_pxa320.c
|
|
*
|
|
* PXA320 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/gpio.h>
|
|
|
|
#include <mach/pxa320.h>
|
|
#include <mach/zylonite.h>
|
|
|
|
#include "generic.h"
|
|
|
|
static mfp_cfg_t mfp_cfg[] __initdata = {
|
|
/* LCD */
|
|
GPIO6_2_LCD_LDD_0,
|
|
GPIO7_2_LCD_LDD_1,
|
|
GPIO8_2_LCD_LDD_2,
|
|
GPIO9_2_LCD_LDD_3,
|
|
GPIO10_2_LCD_LDD_4,
|
|
GPIO11_2_LCD_LDD_5,
|
|
GPIO12_2_LCD_LDD_6,
|
|
GPIO13_2_LCD_LDD_7,
|
|
GPIO63_LCD_LDD_8,
|
|
GPIO64_LCD_LDD_9,
|
|
GPIO65_LCD_LDD_10,
|
|
GPIO66_LCD_LDD_11,
|
|
GPIO67_LCD_LDD_12,
|
|
GPIO68_LCD_LDD_13,
|
|
GPIO69_LCD_LDD_14,
|
|
GPIO70_LCD_LDD_15,
|
|
GPIO71_LCD_LDD_16,
|
|
GPIO72_LCD_LDD_17,
|
|
GPIO73_LCD_CS_N,
|
|
GPIO74_LCD_VSYNC,
|
|
GPIO14_2_LCD_FCLK,
|
|
GPIO15_2_LCD_LCLK,
|
|
GPIO16_2_LCD_PCLK,
|
|
GPIO17_2_LCD_BIAS,
|
|
GPIO14_PWM3_OUT, /* backlight */
|
|
|
|
/* FFUART */
|
|
GPIO41_UART1_RXD | MFP_LPM_EDGE_FALL,
|
|
GPIO42_UART1_TXD,
|
|
GPIO43_UART1_CTS,
|
|
GPIO44_UART1_DCD,
|
|
GPIO45_UART1_DSR | MFP_LPM_EDGE_FALL,
|
|
GPIO46_UART1_RI,
|
|
GPIO47_UART1_DTR,
|
|
GPIO48_UART1_RTS,
|
|
|
|
/* AC97 */
|
|
GPIO34_AC97_SYSCLK,
|
|
GPIO35_AC97_SDATA_IN_0,
|
|
GPIO37_AC97_SDATA_OUT,
|
|
GPIO38_AC97_SYNC,
|
|
GPIO39_AC97_BITCLK,
|
|
GPIO40_AC97_nACRESET,
|
|
GPIO36_GPIO, /* SDATA_IN_1 but unused - configure to GPIO */
|
|
|
|
/* SSP3 */
|
|
GPIO89_SSP3_SCLK,
|
|
GPIO90_SSP3_FRM,
|
|
GPIO91_SSP3_TXD,
|
|
GPIO92_SSP3_RXD,
|
|
|
|
/* WM9713 IRQ */
|
|
GPIO15_GPIO,
|
|
|
|
/* I2C */
|
|
GPIO32_I2C_SCL,
|
|
GPIO33_I2C_SDA,
|
|
|
|
/* Keypad */
|
|
GPIO105_KP_DKIN_0 | MFP_LPM_EDGE_BOTH,
|
|
GPIO106_KP_DKIN_1 | MFP_LPM_EDGE_BOTH,
|
|
GPIO113_KP_MKIN_0 | MFP_LPM_EDGE_BOTH,
|
|
GPIO114_KP_MKIN_1 | MFP_LPM_EDGE_BOTH,
|
|
GPIO115_KP_MKIN_2 | MFP_LPM_EDGE_BOTH,
|
|
GPIO116_KP_MKIN_3 | MFP_LPM_EDGE_BOTH,
|
|
GPIO117_KP_MKIN_4 | MFP_LPM_EDGE_BOTH,
|
|
GPIO118_KP_MKIN_5 | MFP_LPM_EDGE_BOTH,
|
|
GPIO119_KP_MKIN_6 | MFP_LPM_EDGE_BOTH,
|
|
GPIO120_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,
|
|
GPIO126_KP_MKOUT_5,
|
|
GPIO127_KP_MKOUT_6,
|
|
GPIO5_2_KP_MKOUT_7,
|
|
|
|
/* Ethernet */
|
|
GPIO4_nCS3,
|
|
GPIO90_GPIO,
|
|
|
|
/* MMC1 */
|
|
GPIO18_MMC1_DAT0,
|
|
GPIO19_MMC1_DAT1 | MFP_LPM_EDGE_BOTH,
|
|
GPIO20_MMC1_DAT2,
|
|
GPIO21_MMC1_DAT3,
|
|
GPIO22_MMC1_CLK,
|
|
GPIO23_MMC1_CMD,/* CMD0 for slot 0 */
|
|
GPIO31_GPIO, /* CMD1 default as GPIO for slot 0 */
|
|
|
|
/* MMC2 */
|
|
GPIO24_MMC2_DAT0,
|
|
GPIO25_MMC2_DAT1 | MFP_LPM_EDGE_BOTH,
|
|
GPIO26_MMC2_DAT2,
|
|
GPIO27_MMC2_DAT3,
|
|
GPIO28_MMC2_CLK,
|
|
GPIO29_MMC2_CMD,
|
|
|
|
/* USB Host */
|
|
GPIO2_2_USBH_PEN,
|
|
GPIO3_2_USBH_PWR,
|
|
|
|
/* Debug LEDs */
|
|
GPIO1_2_GPIO | MFP_LPM_DRIVE_HIGH,
|
|
GPIO4_2_GPIO | MFP_LPM_DRIVE_HIGH,
|
|
};
|
|
|
|
#define NUM_LCD_DETECT_PINS 7
|
|
|
|
static int lcd_detect_pins[] __initdata = {
|
|
MFP_PIN_GPIO72, /* LCD_LDD_17 - ORIENT */
|
|
MFP_PIN_GPIO71, /* LCD_LDD_16 - LCDID[5] */
|
|
MFP_PIN_GPIO17_2, /* LCD_BIAS - LCDID[4] */
|
|
MFP_PIN_GPIO15_2, /* LCD_LCLK - LCDID[3] */
|
|
MFP_PIN_GPIO14_2, /* LCD_FCLK - LCDID[2] */
|
|
MFP_PIN_GPIO73, /* LCD_CS_N - LCDID[1] */
|
|
MFP_PIN_GPIO74, /* LCD_VSYNC - LCDID[0] */
|
|
/*
|
|
* set the MFP_PIN_GPIO 14/15/17 to alternate function other than
|
|
* GPIO to avoid input level confliction with 14_2, 15_2, 17_2
|
|
*/
|
|
MFP_PIN_GPIO14,
|
|
MFP_PIN_GPIO15,
|
|
MFP_PIN_GPIO17,
|
|
};
|
|
|
|
static int lcd_detect_mfpr[] __initdata = {
|
|
/* AF0, DS 1X, Pull Neither, Edge Clear */
|
|
0x8440, 0x8440, 0x8440, 0x8440, 0x8440, 0x8440, 0x8440,
|
|
0xc442, /* Backlight, Pull-Up, AF2 */
|
|
0x8445, /* AF5 */
|
|
0x8445, /* AF5 */
|
|
};
|
|
|
|
static void __init zylonite_detect_lcd_panel(void)
|
|
{
|
|
unsigned long mfpr_save[ARRAY_SIZE(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 < ARRAY_SIZE(lcd_detect_pins); i++) {
|
|
mfpr_save[i] = pxa3xx_mfp_read(lcd_detect_pins[i]);
|
|
pxa3xx_mfp_write(lcd_detect_pins[i], lcd_detect_mfpr[i]);
|
|
}
|
|
|
|
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 < ARRAY_SIZE(lcd_detect_pins); i++)
|
|
pxa3xx_mfp_write(lcd_detect_pins[i], mfpr_save[i]);
|
|
}
|
|
|
|
void __init zylonite_pxa320_init(void)
|
|
{
|
|
if (cpu_is_pxa320()) {
|
|
/* initialize MFP */
|
|
pxa3xx_mfp_config(ARRAY_AND_SIZE(mfp_cfg));
|
|
|
|
/* detect LCD panel */
|
|
zylonite_detect_lcd_panel();
|
|
|
|
/* GPIO pin assignment */
|
|
gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO9);
|
|
gpio_debug_led1 = mfp_to_gpio(MFP_PIN_GPIO1_2);
|
|
gpio_debug_led2 = mfp_to_gpio(MFP_PIN_GPIO4_2);
|
|
|
|
/* WM9713 IRQ */
|
|
wm9713_irq = mfp_to_gpio(MFP_PIN_GPIO15);
|
|
}
|
|
}
|