arch/arm64/src/imx9: Add an mtd driver for NOR flash on FlexSPI inter…

…face This is an initial FlexSPI SPI NOR MTD driver for IMX9 This supprts M25P SPI NOR on FlexSPI for now, and can later be extended to other SPINOR devices if needed. The following configurations are needed to use this driver: CONFIG_IMX9_FLEXSPI_NOR=y CONFIG_MTD_M25P=y In addition, board initialization logic needs to call the imx9_flexspi_nor_initialize to receive a pointer to the mtd device. Signed-off-by: Jukka Laitinen <[email protected]> Co-authored-by: Jouni Ukkonen <[email protected]>
tiiuae · Jul 5, 2024 · 9e125c4 · 9e125c4
1 parent f92c49e
commit 9e125c4
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diff --git a/arch/arm64/src/imx9/Kconfig b/arch/arm64/src/imx9/Kconfig
@@ -250,6 +250,10 @@ config IMX9_FLEXSPI
 	bool "ENABLE FLEXSPI interface"
 	default n
 
+config IMX9_FLEXSPI_NOR
+	bool "Enable NOR flash on FLEXSPI interface"
+	select IMX9_FLEXSPI
+	default n
 
 config IMX9_FLEXIO1_PWM
 	depends on PWM

diff --git a/arch/arm64/src/imx9/Make.defs b/arch/arm64/src/imx9/Make.defs
@@ -71,3 +71,7 @@ endif
 ifeq ($(CONFIG_IMX9_FLEXSPI), y)
   CHIP_CSRCS += imx9_flexspi.c
 endif
+
+ifeq ($(CONFIG_IMX9_FLEXSPI_NOR), y)
+  CHIP_CSRCS += imx9_flexspi_nor.c
+endif