This patch series aims to enable serial NOR flash on RZ/G2UL SMARC EVK. The RZ/{G2L,G2LC,V2L} SMARC EVK uses Micron MT25QU412A flash and RZ/G2UL SMARC EVK uses Renesas AT25QL128A flash. With current pin setting for IOVF pin, 4-bit flash write fails for AT25QL128A flash. Use Hi-Z state as the default for IOVF pins, so that spi controller driver in linux will be independent of flash type. To support this, during board production, the bit 4 of the NV config register must be cleared by the bootloader for Micron flash. Output from u-boot after clearing bit4 of NVCR register. => renesas_micron_flash_nvcr SF: Detected mt25qu512a with page size 256 Bytes, erase size 64 KiB, total 64 MiB Update partition table for spi-nor flash, so that we can flash bootloaders in Linux by executing the below commands: flash_erase /dev/mtd0 0 0 flash_erase /dev/mtd1 0 0 mtd_debug write /dev/mtd0 0 ${BL2_FILE_SIZE} ${BL2_IMAGE} mtd_debug write /dev/mtd1 512 ${FIP_FILE_SIZE} ${FIP_IMAGE} v2->v2 resend: * Rebased to next RFC->v2: * Dropped patches related to set_iofv() callback * Used Hi-Z state as the default for IOVF pin state. * Enabled Serial NOR flash on RZ/G2UL SMARC EVK * Updated partition table on RZ/{G2L,G2LC,V2L} SMARC EVK in order to flash bootloader images from Linux. RFC: https://lore.kernel.org/all/c9b0cffbb1566a7d38f2251ac7c8883a@xxxxxxxx/ Biju Das (3): memory: renesas-rpc-if: Use Hi-Z state as the default setting for IOVF pins arm64: dts: renesas: rzg2ul-smarc-som: Enable serial NOR flash arm64: dts: renesas: rz{g2l,g2lc}-smarc-som: Update partition table for spi-nor flash .../boot/dts/renesas/rzg2l-smarc-som.dtsi | 15 ++++-- .../boot/dts/renesas/rzg2lc-smarc-som.dtsi | 15 ++++-- .../boot/dts/renesas/rzg2ul-smarc-som.dtsi | 48 +++++++++++++++++++ drivers/memory/renesas-rpc-if.c | 2 +- 4 files changed, 71 insertions(+), 9 deletions(-) -- 2.43.0