set MRE overrides for spi2/3 pins (rusefi#4136)

* set overrides for spi2/3 pins

* don't enable SPI3, just set the pins

* s

firmware/config/boards/microrusefi/board_configuration.cpp

@@ -82,10 +82,9 @@ static void setupVbatt() {
 static void setupTle8888() {
 	// on microRusEFI SPI3 is exposed on PC10/PC11 and there is interest to use SD card there
 	// PB3/PB4 could be either SPI1 or SP3, let's use not SPI3 to address the contention
-	// Enable spi1
-	engineConfiguration->is_enabled_spi_1 = true;
 
-	// Wire up spi1
+	// Enable and wire up SPI1
+	engineConfiguration->is_enabled_spi_1 = true;
 	engineConfiguration->spi1mosiPin = Gpio::B5;
 	engineConfiguration->spi1misoPin = Gpio::B4;
 	engineConfiguration->spi1sckPin = Gpio::B3;
@@ -163,16 +162,22 @@ void setBoardConfigOverrides() {
 	engineConfiguration->canTxPin = Gpio::B6;
 	engineConfiguration->canRxPin = Gpio::B12;
 
+	// SPI2 for onboard SD card on v0.6.0
+	engineConfiguration->is_enabled_spi_2 = true;
+	engineConfiguration->spi2mosiPin = Gpio::B15;
+	engineConfiguration->spi2misoPin = Gpio::B14;
+	engineConfiguration->spi2sckPin = Gpio::B13;
 
+	// SPI3 for expansion header
+	// Don't override enable since you might want these pins for something else
+	engineConfiguration->spi3mosiPin = Gpio::C12;
+	engineConfiguration->spi3misoPin = Gpio::C11;
+	engineConfiguration->spi3sckPin = Gpio::C10;
 }
 
 void setSerialConfigurationOverrides() {
 	// why would MRE disable serial by default? we definitely have pads exposed
 	engineConfiguration->useSerialPort = false;
-
-
-
-
 }
 
 
@@ -207,17 +212,14 @@ void setBoardDefaultConfiguration() {
 	// "required" hardware is done - set some reasonable defaults
 	setupDefaultSensorInputs();
 
-
-	// SPI for SD card
-	engineConfiguration->is_enabled_spi_2 = true;
+	// Enable onboard SD card on v0.6.0
 	engineConfiguration->sdCardSpiDevice = SPI_DEVICE_2;
 	engineConfiguration->isSdCardEnabled = true;
-
-	engineConfiguration->spi2mosiPin = Gpio::B15;
-	engineConfiguration->spi2misoPin = Gpio::B14;
-	engineConfiguration->spi2sckPin = Gpio::B13;
 	engineConfiguration->sdCardCsPin = Gpio::E15;
 
+	// Don't enable expansion header SPI by default
+	engineConfiguration->is_enabled_spi_3 = false;
+
 	engineConfiguration->specs.cylindersCount = 4;
 	engineConfiguration->specs.firingOrder = FO_1_3_4_2;