| /* |
| * 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 <asm/arch/gpio.h> |
| #include <asm/arch/mfp-pxa320.h> |
| #include <asm/arch/zylonite.h> |
| |
| #define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x) |
| |
| 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, |
| |
| /* FFUART */ |
| GPIO41_UART1_RXD, |
| GPIO42_UART1_TXD, |
| GPIO43_UART1_CTS, |
| GPIO44_UART1_DCD, |
| GPIO45_UART1_DSR, |
| 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, |
| |
| /* I2C */ |
| GPIO32_I2C_SCL, |
| GPIO33_I2C_SDA, |
| |
| /* Keypad */ |
| GPIO105_KP_DKIN_0, |
| GPIO106_KP_DKIN_1, |
| GPIO113_KP_MKIN_0, |
| GPIO114_KP_MKIN_1, |
| GPIO115_KP_MKIN_2, |
| GPIO116_KP_MKIN_3, |
| GPIO117_KP_MKIN_4, |
| GPIO118_KP_MKIN_5, |
| GPIO119_KP_MKIN_6, |
| GPIO120_KP_MKIN_7, |
| 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, |
| 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 */ |
| }; |
| |
| #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_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 < 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_backlight = mfp_to_gpio(MFP_PIN_GPIO14); |
| gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO9); |
| |
| /* MMC card detect & write protect for controller 0 */ |
| zylonite_mmc_slot[0].gpio_cd = mfp_to_gpio(MFP_PIN_GPIO1); |
| zylonite_mmc_slot[0].gpio_wp = mfp_to_gpio(MFP_PIN_GPIO5); |
| } |
| } |