waterInvestigationHiddenDanger main.c 岳彩东 commit at 2021-02-01

waterInvestigationHiddenDanger/main.c

@@ -212,3 +212,99 @@ static void __init ek_add_device_nand(void)
 		ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
 	else
 		ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
+
+	/* configure chip-select 3 (NAND) */
+	sam9_smc_configure(0, 3, &ek_nand_smc_config);
+
+	at91_add_device_nand(&ek_nand_data);
+}
+
+/*
+ * SPI related devices
+ */
+#if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
+
+/*
+ * ADS7846 Touchscreen
+ */
+#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
+
+static int ads7843_pendown_state(void)
+{
+	return !at91_get_gpio_value(AT91_PIN_PC2);	/* Touchscreen PENIRQ */
+}
+
+static struct ads7846_platform_data ads_info = {
+	.model			= 7843,
+	.x_min			= 150,
+	.x_max			= 3830,
+	.y_min			= 190,
+	.y_max			= 3830,
+	.vref_delay_usecs	= 100,
+	.x_plate_ohms		= 450,
+	.y_plate_ohms		= 250,
+	.pressure_max		= 15000,
+	.debounce_max		= 1,
+	.debounce_rep		= 0,
+	.debounce_tol		= (~0),
+	.get_pendown_state	= ads7843_pendown_state,
+};
+
+static void __init ek_add_device_ts(void)
+{
+	at91_set_B_periph(AT91_PIN_PC2, 1);	/* External IRQ0, with pullup */
+	at91_set_gpio_input(AT91_PIN_PA11, 1);	/* Touchscreen BUSY signal */
+}
+#else
+static void __init ek_add_device_ts(void) {}
+#endif
+
+/*
+ * Audio
+ */
+static struct at73c213_board_info at73c213_data = {
+	.ssc_id		= 1,
+#if defined(CONFIG_MACH_AT91SAM9261EK)
+	.shortname	= "AT91SAM9261-EK external DAC",
+#else
+	.shortname	= "AT91SAM9G10-EK external DAC",
+#endif
+};
+
+#if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
+static void __init at73c213_set_clk(struct at73c213_board_info *info)
+{
+	struct clk *pck2;
+	struct clk *plla;
+
+	pck2 = clk_get(NULL, "pck2");
+	plla = clk_get(NULL, "plla");
+
+	/* AT73C213 MCK Clock */
+	at91_set_B_periph(AT91_PIN_PB31, 0);	/* PCK2 */
+
+	clk_set_parent(pck2, plla);
+	clk_put(plla);
+
+	info->dac_clk = pck2;
+}
+#else
+static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
+#endif
+
+/*
+ * SPI devices
+ */
+static struct spi_board_info ek_spi_devices[] = {
+	{	/* DataFlash chip */
+		.modalias	= "mtd_dataflash",
+		.chip_select	= 0,
+		.max_speed_hz	= 15 * 1000 * 1000,
+		.bus_num	= 0,
+	},
+#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
+	{
+		.modalias	= "ads7846",
+		.chip_select	= 2,
+		.max_speed_hz	= 125000 * 26,	/* (max sample rate @ 3V) * (cmd + data + overhead) */
+		.bus_num	= 0,