diff options
Diffstat (limited to 'arch/arm/mach-omap2/board-am3517evm.c')
| -rw-r--r-- | arch/arm/mach-omap2/board-am3517evm.c | 239 |
1 files changed, 237 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/board-am3517evm.c b/arch/arm/mach-omap2/board-am3517evm.c index b4e6eca0e8a9..c1c4389fbd8f 100644 --- a/arch/arm/mach-omap2/board-am3517evm.c +++ b/arch/arm/mach-omap2/board-am3517evm.c @@ -20,8 +20,10 @@ #include <linux/init.h> #include <linux/platform_device.h> #include <linux/gpio.h> +#include <linux/i2c/pca953x.h> #include <mach/hardware.h> +#include <mach/am35xx.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> @@ -29,9 +31,228 @@ #include <plat/board.h> #include <plat/common.h> #include <plat/usb.h> +#include <plat/display.h> #include "mux.h" +#define LCD_PANEL_PWR 176 +#define LCD_PANEL_BKLIGHT_PWR 182 +#define LCD_PANEL_PWM 181 + +static struct i2c_board_info __initdata am3517evm_i2c_boardinfo[] = { + { + I2C_BOARD_INFO("s35390a", 0x30), + .type = "s35390a", + }, +}; + +/* + * 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(GPIO_RTCS35390A_IRQ, "rtcs35390a-irq"); + if (r < 0) { + printk(KERN_WARNING "failed to request GPIO#%d\n", + GPIO_RTCS35390A_IRQ); + return; + } + r = gpio_direction_input(GPIO_RTCS35390A_IRQ); + if (r < 0) { + printk(KERN_WARNING "GPIO#%d cannot be configured as input\n", + GPIO_RTCS35390A_IRQ); + gpio_free(GPIO_RTCS35390A_IRQ); + return; + } + am3517evm_i2c_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_tca6416_info_0[] = { + { + 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_ui_tca6416_info[] = { + { + 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_tca6416_info_0, + ARRAY_SIZE(am3517evm_tca6416_info_0)); + omap_register_i2c_bus(3, 400, am3517evm_ui_tca6416_info, + ARRAY_SIZE(am3517evm_ui_tca6416_info)); + + return 0; +} + +static int lcd_enabled; +static int dvi_enabled; + +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); + /* + * Enable GPIO 182 = LCD Backlight Power + */ + r = gpio_request(LCD_PANEL_BKLIGHT_PWR, "lcd_backlight_pwr"); + if (r) { + printk(KERN_ERR "failed to get lcd_backlight_pwr\n"); + return; + } + gpio_direction_output(LCD_PANEL_BKLIGHT_PWR, 1); + /* + * Enable GPIO 181 = LCD Panel PWM + */ + r = gpio_request(LCD_PANEL_PWM, "lcd_pwm"); + if (r) { + printk(KERN_ERR "failed to get lcd_pwm\n"); + goto err_1; + } + gpio_direction_output(LCD_PANEL_PWM, 1); + /* + * Enable GPIO 176 = LCD Panel Power enable pin + */ + r = gpio_request(LCD_PANEL_PWR, "lcd_panel_pwr"); + if (r) { + printk(KERN_ERR "failed to get lcd_panel_pwr\n"); + goto err_2; + } + gpio_direction_output(LCD_PANEL_PWR, 1); + + printk(KERN_INFO "Display initialized successfully\n"); + return; + +err_2: + gpio_free(LCD_PANEL_PWM); +err_1: + gpio_free(LCD_PANEL_BKLIGHT_PWR); +} + +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 omap_dss_device am3517_evm_lcd_device = { + .type = OMAP_DISPLAY_TYPE_DPI, + .name = "lcd", + .driver_name = "sharp_lq_panel", + .phy.dpi.data_lines = 16, + .platform_enable = am3517_evm_panel_enable_lcd, + .platform_disable = am3517_evm_panel_disable_lcd, +}; + +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 int am3517_evm_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 am3517_evm_panel_disable_dvi(struct omap_dss_device *dssdev) +{ + dvi_enabled = 0; +} + +static struct omap_dss_device am3517_evm_dvi_device = { + .type = OMAP_DISPLAY_TYPE_DPI, + .name = "dvi", + .driver_name = "generic_panel", + .phy.dpi.data_lines = 24, + .platform_enable = am3517_evm_panel_enable_dvi, + .platform_disable = am3517_evm_panel_disable_dvi, +}; + +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, +}; + +struct platform_device am3517_evm_dss_device = { + .name = "omapdss", + .id = -1, + .dev = { + .platform_data = &am3517_evm_dss_data, + }, +}; + /* * Board initialization */ @@ -39,6 +260,7 @@ static struct omap_board_config_kernel am3517_evm_config[] __initdata = { }; static struct platform_device *am3517_evm_devices[] __initdata = { + &am3517_evm_dss_device, }; static void __init am3517_evm_init_irq(void) @@ -51,7 +273,7 @@ static void __init am3517_evm_init_irq(void) omap_gpio_init(); } -static struct ehci_hcd_omap_platform_data ehci_pdata __initdata = { +static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = { .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY, .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY, .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN, @@ -73,17 +295,30 @@ static struct omap_board_mux board_mux[] __initdata = { static void __init am3517_evm_init(void) { omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); + + am3517_evm_i2c_init(); platform_add_devices(am3517_evm_devices, ARRAY_SIZE(am3517_evm_devices)); omap_serial_init(); + + /* Configure GPIO for EHCI port */ + omap_mux_init_gpio(57, OMAP_PIN_OUTPUT); usb_ehci_init(&ehci_pdata); + /* DSS */ + am3517_evm_display_init(); + + /* RTC - S35390A */ + am3517_evm_rtc_init(); + + i2c_register_board_info(1, am3517evm_i2c_boardinfo, + ARRAY_SIZE(am3517evm_i2c_boardinfo)); } static void __init am3517_evm_map_io(void) { omap2_set_globals_343x(); - omap2_map_common_io(); + omap34xx_map_common_io(); } MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM") |