boards: spresense: Add LCD support on LTE board

SPRESENSE · Jan 26, 2023 · d25be15 · d25be15
2 parents 85fea3d + 0a1855b
commit d25be15
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Showing 2 changed files with 23 additions and 2 deletions.
diff --git a/boards/arm/cxd56xx/spresense/Kconfig b/boards/arm/cxd56xx/spresense/Kconfig
@@ -497,6 +497,12 @@ choice
 	prompt "LCD SPI connection"
 	default LCD_ON_EXTENSION_BOARD
 
+config LCD_ON_LTE_EXTENSION_BOARD
+	bool "LTE extension board: SPI3"
+	select CXD56_SPI3
+	---help---
+		Display connected to LTE extension board.
+
 config LCD_ON_EXTENSION_BOARD
 	bool "Extension board: SPI4"
 	select CXD56_SPI4
@@ -609,7 +615,7 @@ endchoice
 
 endif
 
-if LCD_ON_EXTENSION_BOARD
+if LCD_ON_EXTENSION_BOARD || LCD_ON_LTE_EXTENSION_BOARD
 
 choice
 	prompt "LCD ILI934x RST Pin selection"

diff --git a/boards/arm/cxd56xx/spresense/include/board.h b/boards/arm/cxd56xx/spresense/include/board.h
@@ -216,7 +216,7 @@ enum board_power_device
 #define BOARD_POWEROFF_DEEP (0)
 #define BOARD_POWEROFF_COLD (1)
 
-/* Power domain definitions **********************************************/
+/* Power domain definitions *************************************************/
 
 #define BOARD_PM_IDLE       (0)
 #define BOARD_PM_APPS       (1)
@@ -244,6 +244,21 @@ enum board_power_device
 #define DISPLAY_DMA_TX_MAXSIZE (192000)
 #define DISPLAY_DMA_RX_MAXSIZE (192000)
 
+#elif defined(CONFIG_LCD_ON_LTE_EXTENSION_BOARD)
+
+/* Display connected to LTE extension board. */
+
+#define DISPLAY_SPI     3
+
+/* Specify invalid channels because DMA cannot be used */
+
+#define DISPLAY_DMA_TXCH       (-1)
+#define DISPLAY_DMA_RXCH       (-1)
+#define DISPLAY_DMA_TXCH_CFG   (-1)
+#define DISPLAY_DMA_RXCH_CFG   (-1)
+#define DISPLAY_DMA_TX_MAXSIZE (192000)
+#define DISPLAY_DMA_RX_MAXSIZE (192000)
+
 #else /* Display is connected through extension board. */
 
 #define DISPLAY_SPI     4