/*
* linux/arch/arm/mach-omap2/board-am3517evm.c
*
* Copyright (C) 2009 Texas Instruments Incorporated
* Author: Ranjith Lohithakshan <ranjithl@ti.com>
*
* Based on mach-omap2/board-omap3evm.c
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation version 2.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
* whether express or implied; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/i2c/pca953x.h>
#include <linux/can/platform/ti_hecc.h>
#include <linux/davinci_emac.h>
#include <linux/mmc/host.h>
#include <linux/platform_data/gpio-omap.h>
#include <mach/am35xx.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include "common.h"
#include <plat/usb.h>
#include <video/omapdss.h>
#include <video/omap-panel-generic-dpi.h>
#include <video/omap-panel-tfp410.h>
#include "am35xx-emac.h"
#include "mux.h"
#include "control.h"
#include "hsmmc.h"
#define LCD_PANEL_PWR 176
#define LCD_PANEL_BKLIGHT_PWR 182
#define LCD_PANEL_PWM 181
static struct i2c_board_info __initdata am3517evm_i2c1_boardinfo[] = {
{
I2C_BOARD_INFO("s35390a", 0x30),
},
};
/*
* RTC - S35390A
*/
#define GPIO_RTCS35390A_IRQ 55
static void __init am3517_evm_rtc_init(void)
{
int r;
omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP);
r = gpio_request_one(GPIO_RTCS35390A_IRQ, GPIOF_IN, "rtcs35390a-irq");
if (r < 0) {
printk(KERN_WARNING "failed to request GPIO#%d\n",
GPIO_RTCS35390A_IRQ);
return;
}
am3517evm_i2c1_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
}
/*
* I2C GPIO Expander - TCA6416
*/
/* Mounted on Base-Board */
static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
.gpio_base = OMAP_MAX_GPIO_LINES,
};
static struct i2c_board_info __initdata am3517evm_i2c2_boardinfo[] = {
{
I2C_BOARD_INFO("tlv320aic23", 0x1A),
},
{
I2C_BOARD_INFO("tca6416", 0x21),
.platform_data = &am3517evm_gpio_expander_info_0,
},
};
/* Mounted on UI Card */
static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
.gpio_base = OMAP_MAX_GPIO_LINES + 16,
};
static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
.gpio_base = OMAP_MAX_GPIO_LINES + 32,
};
static struct i2c_board_info __initdata am3517evm_i2c3_boardinfo[] = {
{
I2C_BOARD_INFO("tca6416", 0x20),
.platform_data = &am3517evm_ui_gpio_expander_info_1,
},
{
I2C_BOARD_INFO("tca6416", 0x21),
.platform_data = &am3517evm_ui_gpio_expander_info_2,
},
};
static int __init am3517_evm_i2c_init(void)
{
omap_register_i2c_bus(1, 400, NULL, 0);
omap_register_i2c_bus(2, 400, am3517evm_i2c2_boardinfo,
ARRAY_SIZE(am3517evm_i2c2_boardinfo));
omap_register_i2c_bus(3, 400, am3517evm_i2c3_boardinfo,
ARRAY_SIZE(am3517evm_i2c3_boardinfo));
return 0;
}
static int lcd_enabled;
static int dvi_enabled;
#if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
static struct gpio am3517_evm_dss_gpios[] __initdata = {
/* GPIO 182 = LCD Backlight Power */
{ LCD_PANEL_BKLIGHT_PWR, GPIOF_OUT_INIT_HIGH, "lcd_backlight_pwr" },
/* GPIO 181 = LCD Panel PWM */
{ LCD_PANEL_PWM, GPIOF_OUT_INIT_HIGH, "lcd bl enable" },
/* GPIO 176 = LCD Panel Power enable pin */
{ LCD_PANEL_PWR, GPIOF_OUT_INIT_HIGH, "dvi enable" },
};
static void __init am3517_evm_display_init(void)
{
int r;
omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);
omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);
r = gpio_request_array(am3517_evm_dss_gpios,
ARRAY_SIZE(am3517_evm_dss_gpios));
if (r) {
printk(KERN_ERR "failed to get DSS panel control GPIOs\n");
return;
}
printk(KERN_INFO "Display initialized successfully\n");
}
#else
static void __init am3517_evm_display_init(void) {}
#endif
static int am3517_evm_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(LCD_PANEL_PWR, 1);
lcd_enabled = 1;
return 0;
}
static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)
{
gpio_set_value(LCD_PANEL_PWR, 0);
lcd_enabled = 0;
}
static struct panel_generic_dpi_data lcd_panel = {
.name = "sharp_lq",
.platform_enable = am3517_evm_panel_enable_lcd,
.platform_disable = am3517_evm_panel_disable_lcd,
};
static struct omap_dss_device am3517_evm_lcd_device = {
.type = OMAP_DISPLAY_TYPE_DPI,
.name = "lcd",
.driver_name = "generic_dpi_panel",
.data = &lcd_panel,
.phy.dpi.data_lines = 16,
};
static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
{
return 0;
}
static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
{
}
static struct omap_dss_device am3517_evm_tv_device = {
.type = OMAP_DISPLAY_TYPE_VENC,
.name = "tv",
.driver_name = "venc",
.phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
.platform_enable = am3517_evm_panel_enable_tv,
.platform_disable = am3517_evm_panel_disable_tv,
};
static struct tfp410_platform_data dvi_panel = {
.power_down_gpio = -1,
};
static struct omap_dss_device am3517_evm_dvi_device = {
.type = OMAP_DISPLAY_TYPE_DPI,
.name = "dvi",
.driver_name = "tfp410",
.data = &dvi_panel,
.phy.dpi.data_lines = 24,
};
static struct omap_dss_device *am3517_evm_dss_devices[] = {
&am3517_evm_lcd_device,
&am3517_evm_tv_device,
&am3517_evm_dvi_device,
};
static struct omap_dss_board_info am3517_evm_dss_data = {
.num_devices = ARRAY_SIZE(am3517_evm_dss_devices),
.devices = am3517_evm_dss_devices,
.default_device = &am3517_evm_lcd_device,
};
/*
* Board initialization
*/
static struct omap_musb_board_data musb_board_data = {
.interface_type = MUSB_INTERFACE_ULPI,
.mode = MUSB_OTG,
.power = 500,
.set_phy_power = am35x_musb_phy_power,
.clear_irq = am35x_musb_clear_irq,
.set_mode = am35x_set_mode,
.reset = am35x_musb_reset,
};
static __init void am3517_evm_musb_init(void)
{
u32 devconf2;
/*
* Set up USB clock/mode in the DEVCONF2 register.
*/
devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
/* USB2.0 PHY reference clock is 13 MHz */
devconf2 &= ~(CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE);
devconf2 |= CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | CONF2_VBDTCTEN
| CONF2_DATPOL;
omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
usb_musb_init(&musb_board_data);
}
static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
#if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
.port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
#else
.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
#endif
.port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
.phy_reset = true,
.reset_gpio_port[0] = 57,
.reset_gpio_port[1] = -EINVAL,
.reset_gpio_port[2] = -EINVAL
};
#ifdef CONFIG_OMAP_MUX
static struct omap_board_mux board_mux[] __initdata = {
/* USB OTG DRVVBUS offset = 0x212 */
OMAP3_MUX(SAD2D_MCAD23, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
{ .reg_offset = OMAP_MUX_TERMINATOR },
};
#endif
static struct resource am3517_hecc_resources[] = {
{
.start = AM35XX_IPSS_HECC_BASE,
.end = AM35XX_IPSS_HECC_BASE + 0x3FFF,
.flags = IORESOURCE_MEM,
},
{
.start = 24 + OMAP_INTC_START,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device am3517_hecc_device = {
.name = "ti_hecc",
.id = -1,
.num_resources = ARRAY_SIZE(am3517_hecc_resources),
.resource = am3517_hecc_resources,
};
static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
.scc_hecc_offset = AM35XX_HECC_SCC_HECC_OFFSET,
.scc_ram_offset = AM35XX_HECC_SCC_RAM_OFFSET,
.hecc_ram_offset = AM35XX_HECC_RAM_OFFSET,
.mbx_offset = AM35XX_HECC_MBOX_OFFSET,
.int_line = AM35XX_HECC_INT_LINE,
.version = AM35XX_HECC_VERSION,
};
static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
{
am3517_hecc_device.dev.platform_data = pdata;
platform_device_register(&am3517_hecc_device);
}
static struct omap2_hsmmc_info mmc[] = {
{
.mmc = 1,
.caps = MMC_CAP_4_BIT_DATA,
.gpio_cd = 127,
.gpio_wp = 126,
},
{
.mmc = 2,
.caps = MMC_CAP_4_BIT_DATA,
.gpio_cd = 128,
.gpio_wp = 129,
},
{} /* Terminator */
};
static void __init am3517_evm_init(void)
{
omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
am3517_evm_i2c_init();
omap_display_init(&am3517_evm_dss_data);
omap_serial_init();
omap_sdrc_init(NULL, NULL);
/* Configure GPIO for EHCI port */
omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
usbhs_init(&usbhs_bdata);
am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
/* DSS */
am3517_evm_display_init();
/* RTC - S35390A */
am3517_evm_rtc_init();
i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
ARRAY_SIZE(am3517evm_i2c1_boardinfo));
/*Ethernet*/
am35xx_emac_init(AM35XX_DEFAULT_MDIO_FREQUENCY, 1);
/* MUSB */
am3517_evm_musb_init();
/* MMC init function */
omap_hsmmc_init(mmc);
}
MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
.atag_offset = 0x100,
.reserve = omap_reserve,
.map_io = omap3_map_io,
.init_early = am35xx_init_early,
.init_irq = omap3_init_irq,
.handle_irq = omap3_intc_handle_irq,
.init_machine = am3517_evm_init,
.init_late = am35xx_init_late,
.timer = &omap3_timer,
.restart = omap_prcm_restart,
MACHINE_END
