espressif: Fix default pins for SPI bus 2 on ESP32-[C3|C6|H2]

Fix the correct pin number for the SPI 2 bus on ESP32-C3, ESP32-C6
and ESP32-H2.

Documentation/platforms/risc-v/esp32h2/boards/esp32h2-devkit/index.rst

@@ -214,7 +214,7 @@ spi
 --------
 
 This configuration enables the support for the SPI driver.
-You can test it by connecting MOSI and MISO pins which are GPIO7 and GPIO2
+You can test it by connecting MOSI and MISO pins which are GPIO5 and GPIO0
 by default to each other and running the ``spi`` example::
 
     nsh> spi exch -b 2 "AB"

arch/risc-v/src/common/espressif/Kconfig

@@ -947,22 +947,27 @@ config ESPRESSIF_SPI2_SLAVE_BUFSIZE
 
 config ESPRESSIF_SPI2_CSPIN
 	int "SPI2 CS Pin"
-	default 10
+	default 10 if ARCH_CHIP_ESP32C3_GENERIC
+	default 16 if ARCH_CHIP_ESP32C6
+	default 1 if ARCH_CHIP_ESP32H2
 	range 0 21
 
 config ESPRESSIF_SPI2_CLKPIN
 	int "SPI2 CLK Pin"
-	default 6
+	default 6 if !ARCH_CHIP_ESP32H2
+	default 4 if ARCH_CHIP_ESP32H2
 	range 0 21
 
 config ESPRESSIF_SPI2_MOSIPIN
 	int "SPI2 MOSI Pin"
-	default 7
+	default 7 if !ARCH_CHIP_ESP32H2
+	default 5 if ARCH_CHIP_ESP32H2
 	range 0 21
 
 config ESPRESSIF_SPI2_MISOPIN
 	int "SPI2 MISO Pin"
-	default 2
+	default 2 if !ARCH_CHIP_ESP32H2
+	default 0 if ARCH_CHIP_ESP32H2
 	range 0 21
 
 endif # ESPRESSIF_SPI2

arch/risc-v/src/common/espressif/esp_spi.c

@@ -78,10 +78,22 @@
 #  define ESP_IRQ_SPI2     ESP_IRQ_GSPI2
 #endif
 
+#if defined(CONFIG_ARCH_CHIP_ESP32C3_GENERIC)
 #define SPI2_IOMUX_MISOPIN  2
 #define SPI2_IOMUX_MOSIPIN  7
 #define SPI2_IOMUX_CLKPIN   6
 #define SPI2_IOMUX_CSPIN    10
+#elif defined(CONFIG_ARCH_CHIP_ESP32C6)
+#define SPI2_IOMUX_MISOPIN  2
+#define SPI2_IOMUX_MOSIPIN  7
+#define SPI2_IOMUX_CLKPIN   6
+#define SPI2_IOMUX_CSPIN    16
+#elif defined(CONFIG_ARCH_CHIP_ESP32H2)
+#define SPI2_IOMUX_MISOPIN  0
+#define SPI2_IOMUX_MOSIPIN  5
+#define SPI2_IOMUX_CLKPIN   4
+#define SPI2_IOMUX_CSPIN    1
+#endif
 
 /* Check if Chip-Select pin will be controlled via software */
 

boards/risc-v/esp32c6/esp32c6-devkitc/configs/spi/defconfig

@@ -23,6 +23,7 @@ CONFIG_BUILTIN=y
 CONFIG_DEV_ZERO=y
 CONFIG_ESPRESSIF_ESP32C6=y
 CONFIG_ESPRESSIF_SPI2=y
+CONFIG_ESPRESSIF_SPI2_CSPIN=15
 CONFIG_FS_PROCFS=y
 CONFIG_IDLETHREAD_STACKSIZE=2048
 CONFIG_INIT_ENTRYPOINT="nsh_main"

boards/risc-v/esp32c6/esp32c6-devkitm/configs/spi/defconfig

@@ -23,6 +23,7 @@ CONFIG_BUILTIN=y
 CONFIG_DEV_ZERO=y
 CONFIG_ESPRESSIF_ESP32C6=y
 CONFIG_ESPRESSIF_SPI2=y
+CONFIG_ESPRESSIF_SPI2_CSPIN=15
 CONFIG_FS_PROCFS=y
 CONFIG_IDLETHREAD_STACKSIZE=2048
 CONFIG_INIT_ENTRYPOINT="nsh_main"