/* * 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 <asm/gpio.h> #include <mach/mfp-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, /* 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, /* 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, }, }; 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); }