/*
* board-overo.c (Gumstix Overo)
*
* Initial code: Steve Sakoman <steve@sakoman.com>
*
* 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.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/i2c/twl.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/fixed.h>
#include <linux/spi/spi.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <linux/mmc/host.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/map.h>
#include <plat/board.h>
#include <plat/common.h>
#include <plat/display.h>
#include <plat/panel-generic-dpi.h>
#include <mach/gpio.h>
#include <plat/gpmc.h>
#include <mach/hardware.h>
#include <plat/nand.h>
#include <plat/mcspi.h>
#include <plat/mux.h>
#include <plat/usb.h>
#include "mux.h"
#include "sdram-micron-mt46h32m32lf-6.h"
#include "hsmmc.h"
#include "common-board-devices.h"
#define OVERO_GPIO_BT_XGATE 15
#define OVERO_GPIO_W2W_NRESET 16
#define OVERO_GPIO_PENDOWN 114
#define OVERO_GPIO_BT_NRESET 164
#define OVERO_GPIO_USBH_CPEN 168
#define OVERO_GPIO_USBH_NRESET 183
#define NAND_BLOCK_SIZE SZ_128K
#define OVERO_SMSC911X_CS 5
#define OVERO_SMSC911X_GPIO 176
#define OVERO_SMSC911X2_CS 4
#define OVERO_SMSC911X2_GPIO 65
#if defined(CONFIG_TOUCHSCREEN_ADS7846) || \
defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
/* fixed regulator for ads7846 */
static struct regulator_consumer_supply ads7846_supply =
REGULATOR_SUPPLY("vcc", "spi1.0");
static struct regulator_init_data vads7846_regulator = {
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = 1,
.consumer_supplies = &ads7846_supply,
};
static struct fixed_voltage_config vads7846 = {
.supply_name = "vads7846",
.microvolts = 3300000, /* 3.3V */
.gpio = -EINVAL,
.startup_delay = 0,
.init_data = &vads7846_regulator,
};
static struct platform_device vads7846_device = {
.name = "reg-fixed-voltage",
.id = 1,
.dev = {
.platform_data = &vads7846,
},
};
static void __init overo_ads7846_init(void)
{
omap_ads7846_init(1, OVERO_GPIO_PENDOWN, 0, NULL);
platform_device_register(&vads7846_device);
}
#else
static inline void __init overo_ads7846_init(void) { return; }
#endif
#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
#include <linux/smsc911x.h>
#include <plat/gpmc-smsc911x.h>
static struct omap_smsc911x_platform_data smsc911x_cfg = {
.id = 0,
.cs = OVERO_SMSC911X_CS,
.gpio_irq = OVERO_SMSC911X_GPIO,
.gpio_reset = -EINVAL,
.flags = SMSC911X_USE_32BIT,
};
static struct omap_smsc911x_platform_data smsc911x2_cfg = {
.id = 1,
.cs = OVERO_SMSC911X2_CS,
.gpio_irq = OVERO_SMSC911X2_GPIO,
.gpio_reset = -EINVAL,
.flags = SMSC911X_USE_32BIT,
};
static void __init overo_init_smsc911x(void)
{
gpmc_smsc911x_init(&smsc911x_cfg);
gpmc_smsc911x_init(&smsc911x2_cfg);
}
#else
static inline void __init overo_init_smsc911x(void) { return; }
#endif
/* DSS */
static int lcd_enabled;
static int dvi_enabled;
#define OVERO_GPIO_LCD_EN 144
#define OVERO_GPIO_LCD_BL 145
static void __init overo_display_init(void)
{
if ((gpio_request(OVERO_GPIO_LCD_EN, "OVERO_GPIO_LCD_EN") == 0) &&
(gpio_direction_output(OVERO_GPIO_LCD_EN, 1) == 0))
gpio_export(OVERO_GPIO_LCD_EN, 0);
else
printk(KERN_ERR "could not obtain gpio for "
"OVERO_GPIO_LCD_EN\n");
if ((gpio_request(OVERO_GPIO_LCD_BL, "OVERO_GPIO_LCD_BL") == 0) &&
(gpio_direction_output(OVERO_GPIO_LCD_BL, 1) == 0))
gpio_export(OVERO_GPIO_LCD_BL, 0);
else
printk(KERN_ERR "could not obtain gpio for "
"OVERO_GPIO_LCD_BL\n");
}
static int overo_panel_enable_dvi(struct omap_dss_device *dssdev)
{
if (lcd_enabled) {
printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
return -EINVAL;
}
dvi_enabled = 1;
return 0;
}
static void overo_panel_disable_dvi(struct omap_dss_device *dssdev)
{
dvi_enabled = 0;
}
static struct panel_generic_dpi_data dvi_panel = {
.name = "generic",
.platform_enable = overo_panel_enable_dvi,
.platform_disable = overo_panel_disable_dvi,
};
static struct omap_dss_device overo_dvi_device = {
.name = "dvi",
.type = OMAP_DISPLAY_TYPE_DPI,
.driver_name = "generic_dpi_panel",
.data = &dvi_panel,
.phy.dpi.data_lines = 24,
};
static struct omap_dss_device overo_tv_device = {
.name = "tv",
.driver_name = "venc",
.type = OMAP_DISPLAY_TYPE_VENC,
.phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
};
static int overo_panel_enable_lcd(struct omap_dss_device *dssdev)
{
if (dvi_enabled) {
printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
return -EINVAL;
}
gpio_set_value(OVERO_GPIO_LCD_EN, 1);
gpio_set_value(OVERO_GPIO_LCD_BL, 1);
lcd_enabled = 1;
return 0;
}
static void overo_panel_disable_lcd(struct omap_dss_device *dssdev)
{
gpio_set_value(OVERO_GPIO_LCD_EN, 0);
gpio_set_value(OVERO_GPIO_LCD_BL, 0);
lcd_enabled = 0;
}
static struct panel_generic_dpi_data lcd43_panel = {
.name = "samsung_lte430wq_f0c",
.platform_enable = overo_panel_enable_lcd,
.platform_disable = overo_panel_disable_lcd,
};
static struct omap_dss_device overo_lcd43_device = {
.name = "lcd43",
.type = OMAP_DISPLAY_TYPE_DPI,
.driver_name = "generic_dpi_panel",
.data = &lcd43_panel,
.phy.dpi.data_lines = 24,
};
#if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
static struct omap_dss_device overo_lcd35_device = {
.type = OMAP_DISPLAY_TYPE_DPI,
.name = "lcd35",
.driver_name = "lgphilips_lb035q02_panel",
.phy.dpi.data_lines = 24,
.platform_enable = overo_panel_enable_lcd,
.platform_disable = overo_panel_disable_lcd,
};
#endif
static struct omap_dss_device *overo_dss_devices[] = {
&overo_dvi_device,
&overo_tv_device,
#if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
&overo_lcd35_device,
#endif
&overo_lcd43_device,
};
static struct omap_dss_board_info overo_dss_data = {
.num_devices = ARRAY_SIZE(overo_dss_devices),
.devices = overo_dss_devices,
.default_device = &overo_dvi_device,
};
static struct regulator_consumer_supply overo_vdda_dac_supply =
REGULATOR_SUPPLY("vdda_dac", "omapdss_venc");
static struct regulator_consumer_supply overo_vdds_dsi_supply[] = {
REGULATOR_SUPPLY("vdds_dsi", "omapdss"),
REGULATOR_SUPPLY("vdds_dsi", "omapdss_dsi1"),
};
static struct mtd_partition overo_nand_partitions[] = {
{
.name = "xloader",
.offset = 0, /* Offset = 0x00000 */
.size = 4 * NAND_BLOCK_SIZE,
.mask_flags = MTD_WRITEABLE
},
{
.name = "uboot",
.offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
.size = 14 * NAND_BLOCK_SIZE,
},
{
.name = "uboot environment",
.offset = MTDPART_OFS_APPEND, /* Offset = 0x240000 */
.size = 2 * NAND_BLOCK_SIZE,
},
{
.name = "linux",
.offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
.size = 32 * NAND_BLOCK_SIZE,
},
{
.name = "rootfs",
.offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
.size = MTDPART_SIZ_FULL,
},
};
static struct omap_nand_platform_data overo_nand_data = {
.parts = overo_nand_partitions,
.nr_parts = ARRAY_SIZE(overo_nand_partitions),
.dma_channel = -1, /* disable DMA in OMAP NAND driver */
};
static void __init overo_flash_init(void)
{
u8 cs = 0;
u8 nandcs = GPMC_CS_NUM + 1;
/* find out the chip-select on which NAND exists */
while (cs < GPMC_CS_NUM) {
u32 ret = 0;
ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
if ((ret & 0xC00) == 0x800) {
printk(KERN_INFO "Found NAND on CS%d\n", cs);
if (nandcs > GPMC_CS_NUM)
nandcs = cs;
}
cs++;
}
if (nandcs > GPMC_CS_NUM) {
printk(KERN_INFO "NAND: Unable to find configuration "
"in GPMC\n ");
return;
}
if (nandcs < GPMC_CS_NUM) {
overo_nand_data.cs = nandcs;
printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
if (gpmc_nand_init(&overo_nand_data) < 0)
printk(KERN_ERR "Unable to register NAND device\n");
}
}
static struct omap2_hsmmc_info mmc[] = {
{
.mmc = 1,
.caps = MMC_CAP_4_BIT_DATA,
.gpio_cd = -EINVAL,
.gpio_wp = -EINVAL,
},
{
.mmc = 2,
.caps = MMC_CAP_4_BIT_DATA,
.gpio_cd = -EINVAL,
.gpio_wp = -EINVAL,
.transceiver = true,
.ocr_mask = 0x00100000, /* 3.3V */
},
{} /* Terminator */
};
static struct regulator_consumer_supply overo_vmmc1_supply = {
.supply = "vmmc",
};
#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
#include <linux/leds.h>
static struct gpio_led gpio_leds[] = {
{
.name = "overo:red:gpio21",
.default_trigger = "heartbeat",
.gpio = 21,
.active_low = true,
},
{
.name = "overo:blue:gpio22",
.default_trigger = "none",
.gpio = 22,
.active_low = true,
},
{
.name = "overo:blue:COM",
.default_trigger = "mmc0",
.gpio = -EINVAL, /* gets replaced */
.active_low = true,
},
};
static struct gpio_led_platform_data gpio_leds_pdata = {
.leds = gpio_leds,
.num_leds = ARRAY_SIZE(gpio_leds),
};
static struct platform_device gpio_leds_device = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &gpio_leds_pdata,
},
};
static void __init overo_init_led(void)
{
platform_device_register(&gpio_leds_device);
}
#else
static inline void __init overo_init_led(void) { return; }
#endif
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
#include <linux/input.h>
#include <linux/gpio_keys.h>
static struct gpio_keys_button gpio_buttons[] = {
{
.code = BTN_0,
.gpio = 23,
.desc = "button0",
.wakeup = 1,
},
{
.code = BTN_1,
.gpio = 14,
.desc = "button1",
.wakeup = 1,
},
};
static struct gpio_keys_platform_data gpio_keys_pdata = {
.buttons = gpio_buttons,
.nbuttons = ARRAY_SIZE(gpio_buttons),
};
static struct platform_device gpio_keys_device = {
.name = "gpio-keys",
.id = -1,
.dev = {
.platform_data = &gpio_keys_pdata,
},
};
static void __init overo_init_keys(void)
{
platform_device_register(&gpio_keys_device);
}
#else
static inline void __init overo_init_keys(void) { return; }
#endif
static int overo_twl_gpio_setup(struct device *dev,
unsigned gpio, unsigned ngpio)
{
omap2_hsmmc_init(mmc);
overo_vmmc1_supply.dev = mmc[0].dev;
#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
/* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
#endif
return 0;
}
static struct twl4030_gpio_platform_data overo_gpio_data = {
.gpio_base = OMAP_MAX_GPIO_LINES,
.irq_base = TWL4030_GPIO_IRQ_BASE,
.irq_end = TWL4030_GPIO_IRQ_END,
.use_leds = true,
.setup = overo_twl_gpio_setup,
};
static struct twl4030_usb_data overo_usb_data = {
.usb_mode = T2_USB_MODE_ULPI,
};
static struct regulator_init_data overo_vmmc1 = {
.constraints = {
.min_uV = 1850000,
.max_uV = 3150000,
.valid_modes_mask = REGULATOR_MODE_NORMAL
| REGULATOR_MODE_STANDBY,
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
| REGULATOR_CHANGE_MODE
| REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = 1,
.consumer_supplies = &overo_vmmc1_supply,
};
/* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
static struct regulator_init_data overo_vdac = {
.constraints = {
.min_uV = 1800000,
.max_uV = 1800000,
.valid_modes_mask = REGULATOR_MODE_NORMAL
| REGULATOR_MODE_STANDBY,
.valid_ops_mask = REGULATOR_CHANGE_MODE
| REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = 1,
.consumer_supplies = &overo_vdda_dac_supply,
};
/* VPLL2 for digital video outputs */
static struct regulator_init_data overo_vpll2 = {
.constraints = {
.name = "VDVI",
.min_uV = 1800000,
.max_uV = 1800000,
.valid_modes_mask = REGULATOR_MODE_NORMAL
| REGULATOR_MODE_STANDBY,
.valid_ops_mask = REGULATOR_CHANGE_MODE
| REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = ARRAY_SIZE(overo_vdds_dsi_supply),
.consumer_supplies = overo_vdds_dsi_supply,
};
static struct twl4030_codec_audio_data overo_audio_data;
static struct twl4030_codec_data overo_codec_data = {
.audio_mclk = 26000000,
.audio = &overo_audio_data,
};
static struct twl4030_platform_data overo_twldata = {
.irq_base = TWL4030_IRQ_BASE,
.irq_end = TWL4030_IRQ_END,
.gpio = &overo_gpio_data,
.usb = &overo_usb_data,
.codec = &overo_codec_data,
.vmmc1 = &overo_vmmc1,
.vdac = &overo_vdac,
.vpll2 = &overo_vpll2,
};
static int __init overo_i2c_init(void)
{
omap3_pmic_init("tps65950", &overo_twldata);
/* i2c2 pins are used for gpio */
omap_register_i2c_bus(3, 400, NULL, 0);
return 0;
}
static struct spi_board_info overo_spi_board_info[] __initdata = {
#if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
{
.modalias = "lgphilips_lb035q02_panel-spi",
.bus_num = 1,
.chip_select = 1,
.max_speed_hz = 500000,
.mode = SPI_MODE_3,
},
#endif
};
static int __init overo_spi_init(void)
{
overo_ads7846_init();
spi_register_board_info(overo_spi_board_info,
ARRAY_SIZE(overo_spi_board_info));
return 0;
}
static void __init overo_init_early(void)
{
omap2_init_common_infrastructure();
omap2_init_common_devices(mt46h32m32lf6_sdrc_params,
mt46h32m32lf6_sdrc_params);
}
static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
.port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
.port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
.phy_reset = true,
.reset_gpio_port[0] = -EINVAL,
.reset_gpio_port[1] = OVERO_GPIO_USBH_NRESET,
.reset_gpio_port[2] = -EINVAL
};
#ifdef CONFIG_OMAP_MUX
static struct omap_board_mux board_mux[] __initdata = {
{ .reg_offset = OMAP_MUX_TERMINATOR },
};
#endif
static struct omap_musb_board_data musb_board_data = {
.interface_type = MUSB_INTERFACE_ULPI,
.mode = MUSB_OTG,
.power = 100,
};
static void __init overo_init(void)
{
omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
overo_i2c_init();
omap_display_init(&overo_dss_data);
omap_serial_init();
overo_flash_init();
usb_musb_init(&musb_board_data);
usbhs_init(&usbhs_bdata);
overo_spi_init();
overo_ads7846_init();
overo_init_smsc911x();
overo_display_init();
overo_init_led();
overo_init_keys();
/* 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);
if ((gpio_request(OVERO_GPIO_W2W_NRESET,
"OVERO_GPIO_W2W_NRESET") == 0) &&
(gpio_direction_output(OVERO_GPIO_W2W_NRESET, 1) == 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 {
printk(KERN_ERR "could not obtain gpio for "
"OVERO_GPIO_W2W_NRESET\n");
}
if ((gpio_request(OVERO_GPIO_BT_XGATE, "OVERO_GPIO_BT_XGATE") == 0) &&
(gpio_direction_output(OVERO_GPIO_BT_XGATE, 0) == 0))
gpio_export(OVERO_GPIO_BT_XGATE, 0);
else
printk(KERN_ERR "could not obtain gpio for OVERO_GPIO_BT_XGATE\n");
if ((gpio_request(OVERO_GPIO_BT_NRESET, "OVERO_GPIO_BT_NRESET") == 0) &&
(gpio_direction_output(OVERO_GPIO_BT_NRESET, 1) == 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);
} else {
printk(KERN_ERR "could not obtain gpio for "
"OVERO_GPIO_BT_NRESET\n");
}
if ((gpio_request(OVERO_GPIO_USBH_CPEN, "OVERO_GPIO_USBH_CPEN") == 0) &&
(gpio_direction_output(OVERO_GPIO_USBH_CPEN, 1) == 0))
gpio_export(OVERO_GPIO_USBH_CPEN, 0);
else
printk(KERN_ERR "could not obtain gpio for "
"OVERO_GPIO_USBH_CPEN\n");
}
MACHINE_START(OVERO, "Gumstix Overo")
.boot_params = 0x80000100,
.reserve = omap_reserve,
.map_io = omap3_map_io,
.init_early = overo_init_early,
.init_irq = omap_init_irq,
.init_machine = overo_init,
.timer = &omap_timer,
MACHINE_END
