1 files changed, 332 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/board-am3517evm.c b/arch/arm/mach-omap2/board-am3517evm.c
new file mode 100644
index 000000000000..c1c4389fbd8f
--- /dev/null
+++ b/arch/arm/mach-omap2/board-am3517evm.c
@@ -0,0 +1,332 @@
+/*
+ * 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/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>
+
+#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
+ */
+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)
+{
+        omap_board_config = am3517_evm_config;
+        omap_board_config_size = ARRAY_SIZE(am3517_evm_config);
+
+        omap2_init_common_hw(NULL, NULL);
+        omap_init_irq();
+        omap_gpio_init();
+}
+
+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,
+
+        .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 = {
+        { .reg_offset = OMAP_MUX_TERMINATOR },
+};
+#else
+#define board_mux       NULL
+#endif
+
+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();
+        omap34xx_map_common_io();
+}
+
+MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
+        .phys_io        = 0x48000000,
+        .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
+        .boot_params    = 0x80000100,
+        .map_io         = am3517_evm_map_io,
+        .init_irq       = am3517_evm_init_irq,
+        .init_machine   = am3517_evm_init,
+        .timer          = &omap_timer,
+MACHINE_END