572 lines
14 KiB
C
572 lines
14 KiB
C
/*
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* board-overo.c (Gumstix Overo)
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*
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* Initial code: Steve Sakoman <steve@sakoman.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#include <linux/clk.h>
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#include <linux/delay.h>
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#include <linux/err.h>
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#include <linux/init.h>
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#include <linux/io.h>
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#include <linux/gpio.h>
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <linux/i2c/twl.h>
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#include <linux/regulator/machine.h>
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#include <linux/regulator/fixed.h>
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#include <linux/spi/spi.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/nand.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mmc/host.h>
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#include <linux/usb/phy.h>
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#include <linux/platform_data/mtd-nand-omap2.h>
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#include <linux/platform_data/spi-omap2-mcspi.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/flash.h>
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#include <asm/mach/map.h>
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#include <video/omapdss.h>
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#include <video/omap-panel-data.h>
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#include "common.h"
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#include "mux.h"
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#include "sdram-micron-mt46h32m32lf-6.h"
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#include "gpmc.h"
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#include "hsmmc.h"
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#include "board-flash.h"
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#include "common-board-devices.h"
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#define NAND_CS 0
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#define OVERO_GPIO_BT_XGATE 15
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#define OVERO_GPIO_W2W_NRESET 16
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#define OVERO_GPIO_PENDOWN 114
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#define OVERO_GPIO_BT_NRESET 164
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#define OVERO_GPIO_USBH_CPEN 168
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#define OVERO_GPIO_USBH_NRESET 183
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#define OVERO_SMSC911X_CS 5
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#define OVERO_SMSC911X_GPIO 176
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#define OVERO_SMSC911X_NRESET 64
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#define OVERO_SMSC911X2_CS 4
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#define OVERO_SMSC911X2_GPIO 65
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/* whether to register LCD35 instead of LCD43 */
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static bool overo_use_lcd35;
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#if defined(CONFIG_TOUCHSCREEN_ADS7846) || \
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defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
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/* fixed regulator for ads7846 */
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static struct regulator_consumer_supply ads7846_supply[] = {
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REGULATOR_SUPPLY("vcc", "spi1.0"),
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};
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static struct regulator_init_data vads7846_regulator = {
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.constraints = {
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.valid_ops_mask = REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = ARRAY_SIZE(ads7846_supply),
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.consumer_supplies = ads7846_supply,
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};
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static struct fixed_voltage_config vads7846 = {
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.supply_name = "vads7846",
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.microvolts = 3300000, /* 3.3V */
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.gpio = -EINVAL,
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.startup_delay = 0,
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.init_data = &vads7846_regulator,
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};
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static struct platform_device vads7846_device = {
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.name = "reg-fixed-voltage",
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.id = 1,
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.dev = {
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.platform_data = &vads7846,
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},
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};
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static void __init overo_ads7846_init(void)
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{
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omap_ads7846_init(1, OVERO_GPIO_PENDOWN, 0, NULL);
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platform_device_register(&vads7846_device);
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}
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#else
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static inline void __init overo_ads7846_init(void) { return; }
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#endif
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#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
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#include <linux/smsc911x.h>
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#include "gpmc-smsc911x.h"
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static struct omap_smsc911x_platform_data smsc911x_cfg = {
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.id = 0,
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.cs = OVERO_SMSC911X_CS,
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.gpio_irq = OVERO_SMSC911X_GPIO,
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.gpio_reset = OVERO_SMSC911X_NRESET,
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.flags = SMSC911X_USE_32BIT,
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};
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static struct omap_smsc911x_platform_data smsc911x2_cfg = {
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.id = 1,
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.cs = OVERO_SMSC911X2_CS,
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.gpio_irq = OVERO_SMSC911X2_GPIO,
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.gpio_reset = -EINVAL,
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.flags = SMSC911X_USE_32BIT,
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};
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static void __init overo_init_smsc911x(void)
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{
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gpmc_smsc911x_init(&smsc911x_cfg);
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gpmc_smsc911x_init(&smsc911x2_cfg);
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}
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#else
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static inline void __init overo_init_smsc911x(void) { return; }
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#endif
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/* DSS */
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#define OVERO_GPIO_LCD_EN 144
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#define OVERO_GPIO_LCD_BL 145
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static struct connector_atv_platform_data overo_tv_pdata = {
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.name = "tv",
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.source = "venc.0",
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.connector_type = OMAP_DSS_VENC_TYPE_SVIDEO,
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.invert_polarity = false,
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};
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static struct platform_device overo_tv_connector_device = {
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.name = "connector-analog-tv",
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.id = 0,
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.dev.platform_data = &overo_tv_pdata,
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};
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static const struct display_timing overo_lcd43_videomode = {
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.pixelclock = { 0, 9200000, 0 },
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.hactive = { 0, 480, 0 },
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.hfront_porch = { 0, 8, 0 },
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.hback_porch = { 0, 4, 0 },
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.hsync_len = { 0, 41, 0 },
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.vactive = { 0, 272, 0 },
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.vfront_porch = { 0, 4, 0 },
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.vback_porch = { 0, 2, 0 },
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.vsync_len = { 0, 10, 0 },
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.flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW |
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DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_POSEDGE,
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};
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static struct panel_dpi_platform_data overo_lcd43_pdata = {
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.name = "lcd43",
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.source = "dpi.0",
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.data_lines = 24,
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.display_timing = &overo_lcd43_videomode,
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.enable_gpio = OVERO_GPIO_LCD_EN,
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.backlight_gpio = OVERO_GPIO_LCD_BL,
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};
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static struct platform_device overo_lcd43_device = {
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.name = "panel-dpi",
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.id = 0,
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.dev.platform_data = &overo_lcd43_pdata,
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};
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static struct connector_dvi_platform_data overo_dvi_connector_pdata = {
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.name = "dvi",
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.source = "tfp410.0",
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.i2c_bus_num = 3,
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};
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static struct platform_device overo_dvi_connector_device = {
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.name = "connector-dvi",
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.id = 0,
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.dev.platform_data = &overo_dvi_connector_pdata,
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};
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static struct encoder_tfp410_platform_data overo_tfp410_pdata = {
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.name = "tfp410.0",
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.source = "dpi.0",
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.data_lines = 24,
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.power_down_gpio = -1,
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};
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static struct platform_device overo_tfp410_device = {
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.name = "tfp410",
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.id = 0,
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.dev.platform_data = &overo_tfp410_pdata,
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};
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static struct omap_dss_board_info overo_dss_data = {
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.default_display_name = "lcd43",
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};
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static void __init overo_display_init(void)
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{
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omap_display_init(&overo_dss_data);
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if (!overo_use_lcd35)
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platform_device_register(&overo_lcd43_device);
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platform_device_register(&overo_tfp410_device);
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platform_device_register(&overo_dvi_connector_device);
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platform_device_register(&overo_tv_connector_device);
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}
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static struct mtd_partition overo_nand_partitions[] = {
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{
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.name = "xloader",
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.offset = 0, /* Offset = 0x00000 */
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.size = 4 * NAND_BLOCK_SIZE,
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.mask_flags = MTD_WRITEABLE
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},
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{
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.name = "uboot",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
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.size = 14 * NAND_BLOCK_SIZE,
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},
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{
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.name = "uboot environment",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x240000 */
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.size = 2 * NAND_BLOCK_SIZE,
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},
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{
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.name = "linux",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
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.size = 32 * NAND_BLOCK_SIZE,
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},
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{
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.name = "rootfs",
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.offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
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.size = MTDPART_SIZ_FULL,
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},
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};
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static struct omap2_hsmmc_info mmc[] = {
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{
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.mmc = 1,
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.caps = MMC_CAP_4_BIT_DATA,
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.gpio_cd = -EINVAL,
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.gpio_wp = -EINVAL,
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},
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{
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.mmc = 2,
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.caps = MMC_CAP_4_BIT_DATA,
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.gpio_cd = -EINVAL,
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.gpio_wp = -EINVAL,
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.transceiver = true,
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.ocr_mask = 0x00100000, /* 3.3V */
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},
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{} /* Terminator */
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};
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static struct regulator_consumer_supply overo_vmmc1_supply[] = {
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REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
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};
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#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
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#include <linux/leds.h>
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static struct gpio_led gpio_leds[] = {
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{
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.name = "overo:red:gpio21",
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.default_trigger = "heartbeat",
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.gpio = 21,
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.active_low = true,
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},
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{
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.name = "overo:blue:gpio22",
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.default_trigger = "none",
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.gpio = 22,
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.active_low = true,
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},
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{
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.name = "overo:blue:COM",
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.default_trigger = "mmc0",
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.gpio = -EINVAL, /* gets replaced */
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.active_low = true,
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},
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};
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static struct gpio_led_platform_data gpio_leds_pdata = {
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.leds = gpio_leds,
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.num_leds = ARRAY_SIZE(gpio_leds),
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};
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static struct platform_device gpio_leds_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 = &gpio_leds_pdata,
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},
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};
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static void __init overo_init_led(void)
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{
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platform_device_register(&gpio_leds_device);
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}
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#else
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static inline void __init overo_init_led(void) { return; }
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#endif
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#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
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#include <linux/input.h>
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#include <linux/gpio_keys.h>
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static struct gpio_keys_button gpio_buttons[] = {
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{
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.code = BTN_0,
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.gpio = 23,
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.desc = "button0",
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.wakeup = 1,
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},
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{
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.code = BTN_1,
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.gpio = 14,
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.desc = "button1",
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.wakeup = 1,
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},
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};
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static struct gpio_keys_platform_data gpio_keys_pdata = {
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.buttons = gpio_buttons,
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.nbuttons = ARRAY_SIZE(gpio_buttons),
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};
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static struct platform_device gpio_keys_device = {
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.name = "gpio-keys",
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.id = -1,
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.dev = {
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.platform_data = &gpio_keys_pdata,
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},
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};
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static void __init overo_init_keys(void)
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{
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platform_device_register(&gpio_keys_device);
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}
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#else
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static inline void __init overo_init_keys(void) { return; }
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#endif
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static int overo_twl_gpio_setup(struct device *dev,
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unsigned gpio, unsigned ngpio)
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{
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#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
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/* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
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gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
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#endif
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return 0;
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}
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static struct twl4030_gpio_platform_data overo_gpio_data = {
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.use_leds = true,
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.setup = overo_twl_gpio_setup,
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};
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static struct regulator_init_data overo_vmmc1 = {
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.constraints = {
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.min_uV = 1850000,
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.max_uV = 3150000,
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.valid_modes_mask = REGULATOR_MODE_NORMAL
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| REGULATOR_MODE_STANDBY,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_MODE
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| REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = ARRAY_SIZE(overo_vmmc1_supply),
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.consumer_supplies = overo_vmmc1_supply,
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};
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static struct twl4030_platform_data overo_twldata = {
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.gpio = &overo_gpio_data,
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.vmmc1 = &overo_vmmc1,
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};
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static int __init overo_i2c_init(void)
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{
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omap3_pmic_get_config(&overo_twldata,
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TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO,
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TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
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overo_twldata.vpll2->constraints.name = "VDVI";
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omap3_pmic_init("tps65950", &overo_twldata);
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/* i2c2 pins are used for gpio */
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omap_register_i2c_bus(3, 400, NULL, 0);
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return 0;
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}
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static struct panel_lb035q02_platform_data overo_lcd35_pdata = {
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.name = "lcd35",
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.source = "dpi.0",
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.data_lines = 24,
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.enable_gpio = OVERO_GPIO_LCD_EN,
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.backlight_gpio = OVERO_GPIO_LCD_BL,
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};
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/*
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* NOTE: We need to add either the lgphilips panel, or the lcd43 panel. The
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* selection is done based on the overo_use_lcd35 field. If new SPI
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* devices are added here, extra work is needed to make only the lgphilips panel
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* affected by the overo_use_lcd35 field.
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*/
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static struct spi_board_info overo_spi_board_info[] __initdata = {
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{
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.modalias = "panel_lgphilips_lb035q02",
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.bus_num = 1,
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.chip_select = 1,
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.max_speed_hz = 500000,
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.mode = SPI_MODE_3,
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.platform_data = &overo_lcd35_pdata,
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},
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};
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static int __init overo_spi_init(void)
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{
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overo_ads7846_init();
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if (overo_use_lcd35) {
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spi_register_board_info(overo_spi_board_info,
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ARRAY_SIZE(overo_spi_board_info));
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}
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return 0;
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}
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static struct usbhs_phy_data phy_data[] __initdata = {
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{
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.port = 2,
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.reset_gpio = OVERO_GPIO_USBH_NRESET,
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.vcc_gpio = -EINVAL,
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},
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};
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static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
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.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
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};
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#ifdef CONFIG_OMAP_MUX
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static struct omap_board_mux board_mux[] __initdata = {
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{ .reg_offset = OMAP_MUX_TERMINATOR },
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};
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#endif
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static struct gpio overo_bt_gpios[] __initdata = {
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{ OVERO_GPIO_BT_XGATE, GPIOF_OUT_INIT_LOW, "lcd enable" },
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{ OVERO_GPIO_BT_NRESET, GPIOF_OUT_INIT_HIGH, "lcd bl enable" },
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};
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static struct regulator_consumer_supply dummy_supplies[] = {
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REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
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REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
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REGULATOR_SUPPLY("vddvario", "smsc911x.1"),
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REGULATOR_SUPPLY("vdd33a", "smsc911x.1"),
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};
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static void __init overo_init(void)
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{
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int ret;
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if (strstr(boot_command_line, "omapdss.def_disp=lcd35"))
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overo_use_lcd35 = true;
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|
|
|
regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
|
|
omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
|
|
overo_i2c_init();
|
|
omap_hsmmc_init(mmc);
|
|
omap_serial_init();
|
|
omap_sdrc_init(mt46h32m32lf6_sdrc_params,
|
|
mt46h32m32lf6_sdrc_params);
|
|
board_nand_init(overo_nand_partitions,
|
|
ARRAY_SIZE(overo_nand_partitions), NAND_CS, 0, NULL);
|
|
usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
|
|
usb_musb_init(NULL);
|
|
|
|
usbhs_init_phys(phy_data, ARRAY_SIZE(phy_data));
|
|
usbhs_init(&usbhs_bdata);
|
|
overo_spi_init();
|
|
overo_init_smsc911x();
|
|
overo_init_led();
|
|
overo_init_keys();
|
|
omap_twl4030_audio_init("overo", NULL);
|
|
|
|
overo_display_init();
|
|
|
|
/* Ensure SDRC pins are mux'd for self-refresh */
|
|
omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
|
|
omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
|
|
|
|
ret = gpio_request_one(OVERO_GPIO_W2W_NRESET, GPIOF_OUT_INIT_HIGH,
|
|
"OVERO_GPIO_W2W_NRESET");
|
|
if (ret == 0) {
|
|
gpio_export(OVERO_GPIO_W2W_NRESET, 0);
|
|
gpio_set_value(OVERO_GPIO_W2W_NRESET, 0);
|
|
udelay(10);
|
|
gpio_set_value(OVERO_GPIO_W2W_NRESET, 1);
|
|
} else {
|
|
pr_err("could not obtain gpio for OVERO_GPIO_W2W_NRESET\n");
|
|
}
|
|
|
|
ret = gpio_request_array(overo_bt_gpios, ARRAY_SIZE(overo_bt_gpios));
|
|
if (ret) {
|
|
pr_err("%s: could not obtain BT gpios\n", __func__);
|
|
} else {
|
|
gpio_export(OVERO_GPIO_BT_XGATE, 0);
|
|
gpio_export(OVERO_GPIO_BT_NRESET, 0);
|
|
gpio_set_value(OVERO_GPIO_BT_NRESET, 0);
|
|
mdelay(6);
|
|
gpio_set_value(OVERO_GPIO_BT_NRESET, 1);
|
|
}
|
|
|
|
ret = gpio_request_one(OVERO_GPIO_USBH_CPEN, GPIOF_OUT_INIT_HIGH,
|
|
"OVERO_GPIO_USBH_CPEN");
|
|
if (ret == 0)
|
|
gpio_export(OVERO_GPIO_USBH_CPEN, 0);
|
|
else
|
|
pr_err("could not obtain gpio for OVERO_GPIO_USBH_CPEN\n");
|
|
}
|
|
|
|
MACHINE_START(OVERO, "Gumstix Overo")
|
|
.atag_offset = 0x100,
|
|
.reserve = omap_reserve,
|
|
.map_io = omap3_map_io,
|
|
.init_early = omap35xx_init_early,
|
|
.init_irq = omap3_init_irq,
|
|
.init_machine = overo_init,
|
|
.init_late = omap35xx_init_late,
|
|
.init_time = omap3_sync32k_timer_init,
|
|
.restart = omap3xxx_restart,
|
|
MACHINE_END
|