arm/mach-pxa/colibri-evalboard.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  *  linux/arch/arm/mach-pxa/colibri-evalboard.c
0004  *
0005  *  Support for Toradex Colibri Evaluation Carrier Board
0006  *  Daniel Mack <daniel@caiaq.de>
0007  *  Marek Vasut <marek.vasut@gmail.com>
0008  */
0009
0010 #include <linux/init.h>
0011 #include <linux/kernel.h>
0012 #include <linux/platform_device.h>
0013 #include <linux/interrupt.h>
0014 #include <linux/gpio/machine.h>
0015 #include <asm/mach-types.h>
0016 #include <asm/mach/arch.h>
0017 #include <linux/i2c.h>
0018 #include <linux/platform_data/i2c-pxa.h>
0019 #include <asm/io.h>
0020
0021 #include "pxa27x.h"
0022 #include "colibri.h"
0023 #include <linux/platform_data/mmc-pxamci.h>
0024 #include <linux/platform_data/usb-ohci-pxa27x.h>
0025 #include "pxa27x-udc.h"
0026
0027 #include "generic.h"
0028 #include "devices.h"
0029
0030 /******************************************************************************
0031  * SD/MMC card controller
0032  ******************************************************************************/
0033 #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
0034 static struct pxamci_platform_data colibri_mci_platform_data = {
0035     .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
0036     .detect_delay_ms    = 200,
0037 };
0038
0039 static struct gpiod_lookup_table colibri_pxa270_mci_gpio_table = {
0040     .dev_id = "pxa2xx-mci.0",
0041     .table = {
0042         GPIO_LOOKUP("gpio-pxa", GPIO0_COLIBRI_PXA270_SD_DETECT,
0043                 "cd", GPIO_ACTIVE_LOW),
0044         { },
0045     },
0046 };
0047
0048 static struct gpiod_lookup_table colibri_pxa300_mci_gpio_table = {
0049     .dev_id = "pxa2xx-mci.0",
0050     .table = {
0051         GPIO_LOOKUP("gpio-pxa", GPIO13_COLIBRI_PXA300_SD_DETECT,
0052                 "cd", GPIO_ACTIVE_LOW),
0053         { },
0054     },
0055 };
0056
0057 static struct gpiod_lookup_table colibri_pxa320_mci_gpio_table = {
0058     .dev_id = "pxa2xx-mci.0",
0059     .table = {
0060         GPIO_LOOKUP("gpio-pxa", GPIO28_COLIBRI_PXA320_SD_DETECT,
0061                 "cd", GPIO_ACTIVE_LOW),
0062         { },
0063     },
0064 };
0065
0066 static void __init colibri_mmc_init(void)
0067 {
0068     if (machine_is_colibri())   /* PXA270 Colibri */
0069         gpiod_add_lookup_table(&colibri_pxa270_mci_gpio_table);
0070     if (machine_is_colibri300())    /* PXA300 Colibri */
0071         gpiod_add_lookup_table(&colibri_pxa300_mci_gpio_table);
0072     else                /* PXA320 Colibri */
0073         gpiod_add_lookup_table(&colibri_pxa320_mci_gpio_table);
0074
0075     pxa_set_mci_info(&colibri_mci_platform_data);
0076 }
0077 #else
0078 static inline void colibri_mmc_init(void) {}
0079 #endif
0080
0081 /******************************************************************************
0082  * USB Host
0083  ******************************************************************************/
0084 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
0085 static int colibri_ohci_init(struct device *dev)
0086 {
0087     UP2OCR = UP2OCR_HXS | UP2OCR_HXOE | UP2OCR_DPPDE | UP2OCR_DMPDE;
0088     return 0;
0089 }
0090
0091 static struct pxaohci_platform_data colibri_ohci_info = {
0092     .port_mode  = PMM_PERPORT_MODE,
0093     .flags      = ENABLE_PORT1 |
0094               POWER_CONTROL_LOW | POWER_SENSE_LOW,
0095     .init       = colibri_ohci_init,
0096 };
0097
0098 static void __init colibri_uhc_init(void)
0099 {
0100     /* Colibri PXA270 has two usb ports, TBA for 320 */
0101     if (machine_is_colibri())
0102         colibri_ohci_info.flags |= ENABLE_PORT2;
0103
0104     pxa_set_ohci_info(&colibri_ohci_info);
0105 }
0106 #else
0107 static inline void colibri_uhc_init(void) {}
0108 #endif
0109
0110 /******************************************************************************
0111  * I2C RTC
0112  ******************************************************************************/
0113 #if defined(CONFIG_RTC_DRV_DS1307) || defined(CONFIG_RTC_DRV_DS1307_MODULE)
0114 static struct i2c_board_info __initdata colibri_i2c_devs[] = {
0115     {
0116         I2C_BOARD_INFO("m41t00", 0x68),
0117     },
0118 };
0119
0120 static void __init colibri_rtc_init(void)
0121 {
0122     pxa_set_i2c_info(NULL);
0123     i2c_register_board_info(0, ARRAY_AND_SIZE(colibri_i2c_devs));
0124 }
0125 #else
0126 static inline void colibri_rtc_init(void) {}
0127 #endif
0128
0129 void __init colibri_evalboard_init(void)
0130 {
0131     pxa_set_ffuart_info(NULL);
0132     pxa_set_btuart_info(NULL);
0133     pxa_set_stuart_info(NULL);
0134
0135     colibri_mmc_init();
0136     colibri_uhc_init();
0137     colibri_rtc_init();
0138 }