468 lines
10 KiB
C
468 lines
10 KiB
C
/*
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* linux/arch/arm/mach-pxa/cm-x300.c
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*
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* Support for the CompuLab CM-X300 modules
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*
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* Copyright (C) 2008 CompuLab Ltd.
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*
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* Mike Rapoport <mike@compulab.co.il>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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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/interrupt.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/gpio.h>
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#include <linux/dm9000.h>
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#include <linux/leds.h>
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#include <linux/i2c.h>
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#include <linux/i2c/pca953x.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <mach/mfp-pxa300.h>
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#include <mach/hardware.h>
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#include <mach/pxafb.h>
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#include <mach/mmc.h>
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#include <mach/ohci.h>
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#include <mach/i2c.h>
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#include <mach/pxa3xx_nand.h>
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#include <asm/mach/map.h>
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#include "generic.h"
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#define CM_X300_ETH_PHYS 0x08000010
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#define GPIO82_MMC2_IRQ (82)
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#define GPIO85_MMC2_WP (85)
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#define CM_X300_MMC2_IRQ IRQ_GPIO(GPIO82_MMC2_IRQ)
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static mfp_cfg_t cm_x300_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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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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/* 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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/* Keypad */
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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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/* 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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/* 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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/* 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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/* GPIOs */
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GPIO79_GPIO, /* LED */
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GPIO82_GPIO | MFP_PULL_HIGH, /* MMC CD */
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GPIO85_GPIO, /* MMC WP */
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GPIO99_GPIO, /* Ethernet IRQ */
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/* Standard I2C */
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GPIO21_I2C_SCL,
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GPIO22_I2C_SDA,
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};
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#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
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static struct resource dm9000_resources[] = {
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[0] = {
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.start = CM_X300_ETH_PHYS,
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.end = CM_X300_ETH_PHYS + 0x3,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = CM_X300_ETH_PHYS + 0x4,
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.end = CM_X300_ETH_PHYS + 0x4 + 500,
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.flags = IORESOURCE_MEM,
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},
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[2] = {
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.start = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
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.end = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
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}
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};
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static struct dm9000_plat_data cm_x300_dm9000_platdata = {
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.flags = DM9000_PLATF_16BITONLY,
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};
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static struct platform_device dm9000_device = {
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.name = "dm9000",
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.id = 0,
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.num_resources = ARRAY_SIZE(dm9000_resources),
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.resource = dm9000_resources,
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.dev = {
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.platform_data = &cm_x300_dm9000_platdata,
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}
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};
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static void __init cm_x300_init_dm9000(void)
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{
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platform_device_register(&dm9000_device);
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}
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#else
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static inline void cm_x300_init_dm9000(void) {}
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#endif
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#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
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static struct pxafb_mode_info cm_x300_lcd_modes[] = {
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[0] = {
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.pixclock = 38000,
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.bpp = 16,
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.xres = 480,
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.yres = 640,
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.hsync_len = 8,
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.vsync_len = 2,
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.left_margin = 8,
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.upper_margin = 0,
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.right_margin = 24,
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.lower_margin = 4,
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.cmap_greyscale = 0,
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},
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[1] = {
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.pixclock = 153800,
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.bpp = 16,
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.xres = 240,
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.yres = 320,
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.hsync_len = 8,
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.vsync_len = 2,
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.left_margin = 8,
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.upper_margin = 2,
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.right_margin = 88,
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.lower_margin = 2,
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.cmap_greyscale = 0,
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},
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};
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static struct pxafb_mach_info cm_x300_lcd = {
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.modes = cm_x300_lcd_modes,
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.num_modes = 2,
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.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
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};
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static void __init cm_x300_init_lcd(void)
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{
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set_pxa_fb_info(&cm_x300_lcd);
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}
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#else
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static inline void cm_x300_init_lcd(void) {}
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#endif
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#if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
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static struct mtd_partition cm_x300_nand_partitions[] = {
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[0] = {
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.name = "OBM",
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.offset = 0,
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.size = SZ_256K,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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},
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[1] = {
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.name = "U-Boot",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_256K,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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},
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[2] = {
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.name = "Environment",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_256K,
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},
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[3] = {
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.name = "reserved",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_256K + SZ_1M,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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},
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[4] = {
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.name = "kernel",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_4M,
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},
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[5] = {
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.name = "fs",
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.offset = MTDPART_OFS_APPEND,
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.size = MTDPART_SIZ_FULL,
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},
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};
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static struct pxa3xx_nand_platform_data cm_x300_nand_info = {
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.enable_arbiter = 1,
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.parts = cm_x300_nand_partitions,
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.nr_parts = ARRAY_SIZE(cm_x300_nand_partitions),
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};
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static void __init cm_x300_init_nand(void)
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{
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pxa3xx_set_nand_info(&cm_x300_nand_info);
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}
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#else
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static inline void cm_x300_init_nand(void) {}
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#endif
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#if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
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/* The first MMC slot of CM-X300 is hardwired to Libertas card and has
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no detection/ro pins */
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static int cm_x300_mci_init(struct device *dev,
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irq_handler_t cm_x300_detect_int,
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void *data)
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{
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return 0;
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}
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static void cm_x300_mci_exit(struct device *dev, void *data)
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{
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}
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static struct pxamci_platform_data cm_x300_mci_platform_data = {
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.detect_delay = 20,
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.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
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.init = cm_x300_mci_init,
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.exit = cm_x300_mci_exit,
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};
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static int cm_x300_mci2_ro(struct device *dev)
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{
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return gpio_get_value(GPIO85_MMC2_WP);
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}
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static int cm_x300_mci2_init(struct device *dev,
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irq_handler_t cm_x300_detect_int,
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void *data)
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{
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int err;
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/*
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* setup GPIO for CM-X300 MMC controller
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*/
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err = gpio_request(GPIO82_MMC2_IRQ, "mmc card detect");
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if (err)
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goto err_request_cd;
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gpio_direction_input(GPIO82_MMC2_IRQ);
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err = gpio_request(GPIO85_MMC2_WP, "mmc write protect");
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if (err)
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goto err_request_wp;
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gpio_direction_input(GPIO85_MMC2_WP);
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err = request_irq(CM_X300_MMC2_IRQ, cm_x300_detect_int,
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IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
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"MMC card detect", data);
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if (err) {
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printk(KERN_ERR "%s: MMC/SD/SDIO: "
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"can't request card detect IRQ\n", __func__);
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goto err_request_irq;
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}
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return 0;
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err_request_irq:
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gpio_free(GPIO85_MMC2_WP);
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err_request_wp:
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gpio_free(GPIO82_MMC2_IRQ);
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err_request_cd:
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return err;
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}
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static void cm_x300_mci2_exit(struct device *dev, void *data)
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{
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free_irq(CM_X300_MMC2_IRQ, data);
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gpio_free(GPIO82_MMC2_IRQ);
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gpio_free(GPIO85_MMC2_WP);
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}
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static struct pxamci_platform_data cm_x300_mci2_platform_data = {
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.detect_delay = 20,
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.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
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.init = cm_x300_mci2_init,
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.exit = cm_x300_mci2_exit,
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.get_ro = cm_x300_mci2_ro,
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};
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static void __init cm_x300_init_mmc(void)
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{
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pxa_set_mci_info(&cm_x300_mci_platform_data);
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pxa3xx_set_mci2_info(&cm_x300_mci2_platform_data);
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}
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#else
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static inline void cm_x300_init_mmc(void) {}
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#endif
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#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
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static struct pxaohci_platform_data cm_x300_ohci_platform_data = {
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.port_mode = PMM_PERPORT_MODE,
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.flags = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
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};
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static void __init cm_x300_init_ohci(void)
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{
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pxa_set_ohci_info(&cm_x300_ohci_platform_data);
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}
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#else
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static inline void cm_x300_init_ohci(void) {}
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#endif
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#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
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static struct gpio_led cm_x300_leds[] = {
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[0] = {
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.name = "cm-x300:green",
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.default_trigger = "heartbeat",
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.gpio = 79,
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.active_low = 1,
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},
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};
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static struct gpio_led_platform_data cm_x300_gpio_led_pdata = {
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.num_leds = ARRAY_SIZE(cm_x300_leds),
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.leds = cm_x300_leds,
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};
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static struct platform_device cm_x300_led_device = {
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.name = "leds-gpio",
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.id = -1,
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.dev = {
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.platform_data = &cm_x300_gpio_led_pdata,
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},
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};
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static void __init cm_x300_init_leds(void)
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{
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platform_device_register(&cm_x300_led_device);
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}
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#else
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static inline void cm_x300_init_leds(void) {}
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#endif
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#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
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/* PCA9555 */
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static struct pca953x_platform_data cm_x300_gpio_ext_pdata_0 = {
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.gpio_base = 128,
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};
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static struct pca953x_platform_data cm_x300_gpio_ext_pdata_1 = {
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.gpio_base = 144,
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};
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static struct i2c_board_info cm_x300_gpio_ext_info[] = {
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[0] = {
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I2C_BOARD_INFO("pca9555", 0x24),
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.platform_data = &cm_x300_gpio_ext_pdata_0,
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},
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[1] = {
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I2C_BOARD_INFO("pca9555", 0x25),
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.platform_data = &cm_x300_gpio_ext_pdata_1,
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},
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};
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static void __init cm_x300_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, cm_x300_gpio_ext_info,
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ARRAY_SIZE(cm_x300_gpio_ext_info));
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}
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#else
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static inline void cm_x300_init_i2c(void) {}
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#endif
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static void __init cm_x300_init(void)
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{
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/* board-processor specific GPIO initialization */
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pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x300_mfp_cfg));
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cm_x300_init_dm9000();
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cm_x300_init_lcd();
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cm_x300_init_ohci();
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cm_x300_init_mmc();
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cm_x300_init_nand();
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cm_x300_init_leds();
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cm_x300_init_i2c();
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}
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MACHINE_START(CM_X300, "CM-X300 module")
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.phys_io = 0x40000000,
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.boot_params = 0xa0000100,
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.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
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.map_io = pxa_map_io,
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.init_irq = pxa3xx_init_irq,
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.timer = &pxa_timer,
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.init_machine = cm_x300_init,
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MACHINE_END
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