![Bridge Wu](/assets/img/avatar_default.png)
This patch is to add the second mmc controller support for pxa3xx. It's valid for pxa3[0|1|2]0. On zylonite, the second controller has no slot. Signed-off-by: Bridge Wu <bridge.wu@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
210 lines
4.5 KiB
C
210 lines
4.5 KiB
C
/*
|
|
* 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 <asm/gpio.h>
|
|
#include <asm/arch/mfp-pxa300.h>
|
|
#include <asm/arch/zylonite.h>
|
|
|
|
#define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x)
|
|
|
|
/* 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,
|
|
|
|
/* BTUART */
|
|
GPIO111_UART2_RTS,
|
|
GPIO112_UART2_RXD,
|
|
GPIO113_UART2_TXD,
|
|
GPIO114_UART2_CTS,
|
|
|
|
/* STUART */
|
|
GPIO109_UART3_TXD,
|
|
GPIO110_UART3_RXD,
|
|
|
|
/* AC97 */
|
|
GPIO23_AC97_nACRESET,
|
|
GPIO24_AC97_SYSCLK,
|
|
GPIO29_AC97_BITCLK,
|
|
GPIO25_AC97_SDATA_IN_0,
|
|
GPIO27_AC97_SDATA_OUT,
|
|
GPIO28_AC97_SYNC,
|
|
|
|
/* Keypad */
|
|
GPIO107_KP_DKIN_0,
|
|
GPIO108_KP_DKIN_1,
|
|
GPIO115_KP_MKIN_0,
|
|
GPIO116_KP_MKIN_1,
|
|
GPIO117_KP_MKIN_2,
|
|
GPIO118_KP_MKIN_3,
|
|
GPIO119_KP_MKIN_4,
|
|
GPIO120_KP_MKIN_5,
|
|
GPIO2_2_KP_MKIN_6,
|
|
GPIO3_2_KP_MKIN_7,
|
|
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,
|
|
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,
|
|
GPIO11_MMC2_DAT2,
|
|
GPIO12_MMC2_DAT3,
|
|
GPIO13_MMC2_CLK,
|
|
GPIO14_MMC2_CMD,
|
|
};
|
|
|
|
static mfp_cfg_t pxa300_mfp_cfg[] __initdata = {
|
|
/* FFUART */
|
|
GPIO30_UART1_RXD,
|
|
GPIO31_UART1_TXD,
|
|
GPIO32_UART1_CTS,
|
|
GPIO37_UART1_RTS,
|
|
GPIO33_UART1_DCD,
|
|
GPIO34_UART1_DSR,
|
|
GPIO35_UART1_RI,
|
|
GPIO36_UART1_DTR,
|
|
|
|
/* Ethernet */
|
|
GPIO2_nCS3,
|
|
GPIO99_GPIO,
|
|
};
|
|
|
|
static mfp_cfg_t pxa310_mfp_cfg[] __initdata = {
|
|
/* FFUART */
|
|
GPIO99_UART1_RXD,
|
|
GPIO100_UART1_TXD,
|
|
GPIO101_UART1_CTS,
|
|
GPIO106_UART1_RTS,
|
|
|
|
/* Ethernet */
|
|
GPIO2_nCS3,
|
|
GPIO102_GPIO,
|
|
};
|
|
|
|
#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]);
|
|
}
|
|
|
|
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();
|
|
|
|
/* GPIO pin assignment */
|
|
gpio_backlight = mfp_to_gpio(MFP_PIN_GPIO20);
|
|
|
|
/* 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);
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|