efDataStatistics functionDefinition.c 韩正义 commit at 2021-02-09

efDataStatistics/calculationOfAlarmUnprocessedData/functionDefinition.c

@@ -452,3 +452,157 @@ static struct spi_board_info __initdata htcherald_spi_board_info[] = {
 		.chip_select		= 1,
 	}
 };
+
+/*
+ * Init functions from here on
+ */
+
+static void __init htcherald_lcd_init(void)
+{
+	u32 reg;
+	unsigned int tries = 200;
+
+	/* disable controller if active */
+	reg = omap_readl(OMAP_LCDC_CONTROL);
+	if (reg & OMAP_LCDC_CTRL_LCD_EN) {
+		reg &= ~OMAP_LCDC_CTRL_LCD_EN;
+		omap_writel(reg, OMAP_LCDC_CONTROL);
+
+		/* wait for end of frame */
+		while (!(omap_readl(OMAP_LCDC_STATUS) & OMAP_LCDC_STAT_DONE)) {
+			tries--;
+			if (!tries)
+				break;
+		}
+		if (!tries)
+			pr_err("Timeout waiting for end of frame -- LCD may not be available\n");
+
+		/* turn off DMA */
+		reg = omap_readw(OMAP_DMA_LCD_CCR);
+		reg &= ~(1 << 7);
+		omap_writew(reg, OMAP_DMA_LCD_CCR);
+
+		reg = omap_readw(OMAP_DMA_LCD_CTRL);
+		reg &= ~(1 << 8);
+		omap_writew(reg, OMAP_DMA_LCD_CTRL);
+	}
+}
+
+static void __init htcherald_map_io(void)
+{
+	omap7xx_map_io();
+
+	/*
+	 * The LCD panel must be disabled and DMA turned off here, as doing
+	 * it later causes the LCD never to reinitialize.
+	 */
+	htcherald_lcd_init();
+
+	printk(KERN_INFO "htcherald_map_io done.\n");
+}
+
+static void __init htcherald_disable_watchdog(void)
+{
+	/* Disable watchdog if running */
+	if (omap_readl(OMAP_WDT_TIMER_MODE) & 0x8000) {
+		/*
+		 * disable a potentially running watchdog timer before
+		 * it kills us.
+		 */
+		printk(KERN_WARNING "OMAP850 Watchdog seems to be activated, disabling it for now.\n");
+		omap_writel(0xF5, OMAP_WDT_TIMER_MODE);
+		omap_writel(0xA0, OMAP_WDT_TIMER_MODE);
+	}
+}
+
+#define HTCHERALD_GPIO_USB_EN1 33
+#define HTCHERALD_GPIO_USB_EN2 73
+#define HTCHERALD_GPIO_USB_DM  35
+#define HTCHERALD_GPIO_USB_DP  36
+
+static void __init htcherald_usb_enable(void)
+{
+	unsigned int tries = 20;
+	unsigned int value = 0;
+
+	/* Request the GPIOs we need to control here */
+	if (gpio_request(HTCHERALD_GPIO_USB_EN1, "herald_usb") < 0)
+		goto err1;
+
+	if (gpio_request(HTCHERALD_GPIO_USB_EN2, "herald_usb") < 0)
+		goto err2;
+
+	if (gpio_request(HTCHERALD_GPIO_USB_DM, "herald_usb") < 0)
+		goto err3;
+
+	if (gpio_request(HTCHERALD_GPIO_USB_DP, "herald_usb") < 0)
+		goto err4;
+
+	/* force USB_EN GPIO to 0 */
+	do {
+		/* output low */
+		gpio_direction_output(HTCHERALD_GPIO_USB_EN1, 0);
+	} while ((value = gpio_get_value(HTCHERALD_GPIO_USB_EN1)) == 1 &&
+			--tries);
+
+	if (value == 1)
+		printk(KERN_WARNING "Unable to reset USB, trying to continue\n");
+
+	gpio_direction_output(HTCHERALD_GPIO_USB_EN2, 0); /* output low */
+	gpio_direction_input(HTCHERALD_GPIO_USB_DM); /* input */
+	gpio_direction_input(HTCHERALD_GPIO_USB_DP); /* input */
+
+	goto done;
+
+err4:
+	gpio_free(HTCHERALD_GPIO_USB_DM);
+err3:
+	gpio_free(HTCHERALD_GPIO_USB_EN2);
+err2:
+	gpio_free(HTCHERALD_GPIO_USB_EN1);
+err1:
+	printk(KERN_ERR "Unabled to request GPIO for USB\n");
+done:
+	printk(KERN_INFO "USB setup complete.\n");
+}
+
+static void __init htcherald_init(void)
+{
+	printk(KERN_INFO "HTC Herald init.\n");
+
+	/* Do board initialization before we register all the devices */
+	htcpld_resources[0].start = gpio_to_irq(HTCHERALD_GIRQ_BTNS);
+	htcpld_resources[0].end = gpio_to_irq(HTCHERALD_GIRQ_BTNS);
+	platform_add_devices(devices, ARRAY_SIZE(devices));
+
+	htcherald_disable_watchdog();
+
+	htcherald_usb_enable();
+	omap1_usb_init(&htcherald_usb_config);
+
+	htcherald_spi_board_info[0].irq = gpio_to_irq(HTCHERALD_GPIO_TS);
+	spi_register_board_info(htcherald_spi_board_info,
+		ARRAY_SIZE(htcherald_spi_board_info));
+
+	omap_register_i2c_bus(1, 100, NULL, 0);
+
+#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
+	htc_mmc_data[0] = &htc_mmc1_data;
+	omap1_init_mmc(htc_mmc_data, 1);
+#endif
+
+	omapfb_set_lcd_config(&htcherald_lcd_config);
+}
+
+MACHINE_START(HERALD, "HTC Herald")
+	/* Maintainer: Cory Maccarrone <darkstar6262@gmail.com> */
+	/* Maintainer: wing-linux.sourceforge.net */
+	.atag_offset    = 0x100,
+	.map_io         = htcherald_map_io,
+	.init_early     = omap1_init_early,
+	.init_irq       = omap1_init_irq,
+	.init_machine   = htcherald_init,
+	.init_late	= omap1_init_late,
+	.timer          = &omap1_timer,
+	.restart	= omap1_restart,
+MACHINE_END