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280 lines
6.1 KiB
280 lines
6.1 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* linux/arch/arm/mach-pxa/zylonite_pxa300.c |
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* |
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* PXA300/PXA310 specific support code for the |
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* PXA3xx Development Platform (aka Zylonite) |
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* |
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* Copyright (C) 2007 Marvell Internation Ltd. |
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* 2007-08-21: eric miao <[email protected]> |
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* initial version |
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*/ |
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#include <linux/module.h> |
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#include <linux/kernel.h> |
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#include <linux/init.h> |
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#include <linux/i2c.h> |
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#include <linux/platform_data/i2c-pxa.h> |
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#include <linux/platform_data/pca953x.h> |
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#include <linux/gpio.h> |
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#include "pxa300.h" |
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#include "devices.h" |
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#include "zylonite.h" |
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#include "generic.h" |
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/* PXA300/PXA310 common configurations */ |
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static mfp_cfg_t common_mfp_cfg[] __initdata = { |
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/* LCD */ |
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GPIO54_LCD_LDD_0, |
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GPIO55_LCD_LDD_1, |
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GPIO56_LCD_LDD_2, |
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GPIO57_LCD_LDD_3, |
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GPIO58_LCD_LDD_4, |
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GPIO59_LCD_LDD_5, |
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GPIO60_LCD_LDD_6, |
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GPIO61_LCD_LDD_7, |
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GPIO62_LCD_LDD_8, |
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GPIO63_LCD_LDD_9, |
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GPIO64_LCD_LDD_10, |
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GPIO65_LCD_LDD_11, |
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GPIO66_LCD_LDD_12, |
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GPIO67_LCD_LDD_13, |
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GPIO68_LCD_LDD_14, |
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GPIO69_LCD_LDD_15, |
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GPIO70_LCD_LDD_16, |
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GPIO71_LCD_LDD_17, |
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GPIO72_LCD_FCLK, |
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GPIO73_LCD_LCLK, |
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GPIO74_LCD_PCLK, |
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GPIO75_LCD_BIAS, |
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GPIO76_LCD_VSYNC, |
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GPIO127_LCD_CS_N, |
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GPIO20_PWM3_OUT, /* backlight */ |
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/* BTUART */ |
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GPIO111_UART2_RTS, |
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GPIO112_UART2_RXD | MFP_LPM_EDGE_FALL, |
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GPIO113_UART2_TXD, |
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GPIO114_UART2_CTS | MFP_LPM_EDGE_BOTH, |
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/* STUART */ |
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GPIO109_UART3_TXD, |
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GPIO110_UART3_RXD | MFP_LPM_EDGE_FALL, |
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/* AC97 */ |
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GPIO23_AC97_nACRESET, |
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GPIO24_AC97_SYSCLK, |
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GPIO29_AC97_BITCLK, |
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GPIO25_AC97_SDATA_IN_0, |
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GPIO27_AC97_SDATA_OUT, |
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GPIO28_AC97_SYNC, |
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GPIO17_GPIO, /* SDATA_IN_1 but unused - configure to GPIO */ |
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/* SSP3 */ |
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GPIO91_SSP3_SCLK, |
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GPIO92_SSP3_FRM, |
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GPIO93_SSP3_TXD, |
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GPIO94_SSP3_RXD, |
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/* WM9713 IRQ */ |
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GPIO26_GPIO, |
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/* Keypad */ |
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GPIO107_KP_DKIN_0 | MFP_LPM_EDGE_BOTH, |
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GPIO108_KP_DKIN_1 | MFP_LPM_EDGE_BOTH, |
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GPIO115_KP_MKIN_0 | MFP_LPM_EDGE_BOTH, |
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GPIO116_KP_MKIN_1 | MFP_LPM_EDGE_BOTH, |
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GPIO117_KP_MKIN_2 | MFP_LPM_EDGE_BOTH, |
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GPIO118_KP_MKIN_3 | MFP_LPM_EDGE_BOTH, |
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GPIO119_KP_MKIN_4 | MFP_LPM_EDGE_BOTH, |
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GPIO120_KP_MKIN_5 | MFP_LPM_EDGE_BOTH, |
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GPIO2_2_KP_MKIN_6 | MFP_LPM_EDGE_BOTH, |
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GPIO3_2_KP_MKIN_7 | MFP_LPM_EDGE_BOTH, |
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GPIO121_KP_MKOUT_0, |
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GPIO122_KP_MKOUT_1, |
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GPIO123_KP_MKOUT_2, |
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GPIO124_KP_MKOUT_3, |
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GPIO125_KP_MKOUT_4, |
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GPIO4_2_KP_MKOUT_5, |
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GPIO5_2_KP_MKOUT_6, |
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GPIO6_2_KP_MKOUT_7, |
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/* MMC1 */ |
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GPIO3_MMC1_DAT0, |
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GPIO4_MMC1_DAT1 | MFP_LPM_EDGE_BOTH, |
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GPIO5_MMC1_DAT2, |
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GPIO6_MMC1_DAT3, |
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GPIO7_MMC1_CLK, |
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GPIO8_MMC1_CMD, /* CMD0 for slot 0 */ |
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GPIO15_GPIO, /* CMD1 default as GPIO for slot 0 */ |
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/* MMC2 */ |
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GPIO9_MMC2_DAT0, |
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GPIO10_MMC2_DAT1 | MFP_LPM_EDGE_BOTH, |
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GPIO11_MMC2_DAT2, |
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GPIO12_MMC2_DAT3, |
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GPIO13_MMC2_CLK, |
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GPIO14_MMC2_CMD, |
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/* USB Host */ |
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GPIO0_2_USBH_PEN, |
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GPIO1_2_USBH_PWR, |
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/* Standard I2C */ |
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GPIO21_I2C_SCL, |
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GPIO22_I2C_SDA, |
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/* GPIO */ |
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GPIO18_GPIO | MFP_PULL_HIGH, /* GPIO Expander #0 INT_N */ |
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GPIO19_GPIO | MFP_PULL_HIGH, /* GPIO Expander #1 INT_N */ |
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}; |
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static mfp_cfg_t pxa300_mfp_cfg[] __initdata = { |
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/* FFUART */ |
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GPIO30_UART1_RXD | MFP_LPM_EDGE_FALL, |
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GPIO31_UART1_TXD, |
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GPIO32_UART1_CTS, |
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GPIO37_UART1_RTS, |
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GPIO33_UART1_DCD, |
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GPIO34_UART1_DSR | MFP_LPM_EDGE_FALL, |
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GPIO35_UART1_RI, |
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GPIO36_UART1_DTR, |
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/* Ethernet */ |
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GPIO2_nCS3, |
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GPIO99_GPIO, |
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}; |
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static mfp_cfg_t pxa310_mfp_cfg[] __initdata = { |
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/* FFUART */ |
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GPIO99_UART1_RXD | MFP_LPM_EDGE_FALL, |
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GPIO100_UART1_TXD, |
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GPIO101_UART1_CTS, |
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GPIO106_UART1_RTS, |
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/* Ethernet */ |
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GPIO2_nCS3, |
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GPIO102_GPIO, |
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/* MMC3 */ |
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GPIO7_2_MMC3_DAT0, |
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GPIO8_2_MMC3_DAT1 | MFP_LPM_EDGE_BOTH, |
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GPIO9_2_MMC3_DAT2, |
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GPIO10_2_MMC3_DAT3, |
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GPIO103_MMC3_CLK, |
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GPIO105_MMC3_CMD, |
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}; |
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#define NUM_LCD_DETECT_PINS 7 |
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static int lcd_detect_pins[] __initdata = { |
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MFP_PIN_GPIO71, /* LCD_LDD_17 - ORIENT */ |
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MFP_PIN_GPIO70, /* LCD_LDD_16 - LCDID[5] */ |
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MFP_PIN_GPIO75, /* LCD_BIAS - LCDID[4] */ |
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MFP_PIN_GPIO73, /* LCD_LCLK - LCDID[3] */ |
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MFP_PIN_GPIO72, /* LCD_FCLK - LCDID[2] */ |
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MFP_PIN_GPIO127,/* LCD_CS_N - LCDID[1] */ |
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MFP_PIN_GPIO76, /* LCD_VSYNC - LCDID[0] */ |
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}; |
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static void __init zylonite_detect_lcd_panel(void) |
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{ |
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unsigned long mfpr_save[NUM_LCD_DETECT_PINS]; |
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int i, gpio, id = 0; |
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/* save the original MFP settings of these pins and configure |
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* them as GPIO Input, DS01X, Pull Neither, Edge Clear |
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*/ |
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for (i = 0; i < NUM_LCD_DETECT_PINS; i++) { |
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mfpr_save[i] = pxa3xx_mfp_read(lcd_detect_pins[i]); |
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pxa3xx_mfp_write(lcd_detect_pins[i], 0x8440); |
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} |
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for (i = 0; i < NUM_LCD_DETECT_PINS; i++) { |
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id = id << 1; |
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gpio = mfp_to_gpio(lcd_detect_pins[i]); |
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gpio_request(gpio, "LCD_ID_PINS"); |
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gpio_direction_input(gpio); |
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if (gpio_get_value(gpio)) |
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id = id | 0x1; |
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gpio_free(gpio); |
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} |
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/* lcd id, flush out bit 1 */ |
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lcd_id = id & 0x3d; |
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/* lcd orientation, portrait or landscape */ |
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lcd_orientation = (id >> 6) & 0x1; |
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/* restore the original MFP settings */ |
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for (i = 0; i < NUM_LCD_DETECT_PINS; i++) |
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pxa3xx_mfp_write(lcd_detect_pins[i], mfpr_save[i]); |
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} |
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#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
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static struct pca953x_platform_data gpio_exp[] = { |
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[0] = { |
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.gpio_base = 128, |
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}, |
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[1] = { |
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.gpio_base = 144, |
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}, |
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}; |
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static struct i2c_board_info zylonite_i2c_board_info[] = { |
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{ |
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.type = "pca9539", |
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.dev_name = "pca9539-a", |
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.addr = 0x74, |
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.platform_data = &gpio_exp[0], |
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.irq = PXA_GPIO_TO_IRQ(18), |
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}, { |
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.type = "pca9539", |
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.dev_name = "pca9539-b", |
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.addr = 0x75, |
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.platform_data = &gpio_exp[1], |
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.irq = PXA_GPIO_TO_IRQ(19), |
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}, |
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}; |
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static void __init zylonite_init_i2c(void) |
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{ |
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pxa_set_i2c_info(NULL); |
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i2c_register_board_info(0, ARRAY_AND_SIZE(zylonite_i2c_board_info)); |
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} |
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#else |
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static inline void zylonite_init_i2c(void) {} |
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#endif |
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void __init zylonite_pxa300_init(void) |
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{ |
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if (cpu_is_pxa300() || cpu_is_pxa310()) { |
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/* initialize MFP */ |
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pxa3xx_mfp_config(ARRAY_AND_SIZE(common_mfp_cfg)); |
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/* detect LCD panel */ |
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zylonite_detect_lcd_panel(); |
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/* WM9713 IRQ */ |
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wm9713_irq = mfp_to_gpio(MFP_PIN_GPIO26); |
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zylonite_init_i2c(); |
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} |
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if (cpu_is_pxa300()) { |
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pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa300_mfp_cfg)); |
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gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO99); |
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} |
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if (cpu_is_pxa310()) { |
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pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa310_mfp_cfg)); |
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gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO102); |
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} |
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/* GPIOs for Debug LEDs */ |
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gpio_debug_led1 = EXT_GPIO(25); |
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gpio_debug_led2 = EXT_GPIO(26); |
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}
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