From: Tudor Ambarus tudor.ambarus@microchip.com
Backport the driver from linux v5.1-rc5 and adapt it for u-boot. Tested on sama5d2_xplained Rev B with mx25l25635e spi-nor flash, and on sama5d27_som1_ek with sst26vf064b spi-nor flash.
v2: update/add configs and update sama5d2_xplained dts
Cyrille Pitchen (2): ARM: dts: at91: sama5d2_xplained: fix QSPI0 node ARM: at91: sama5: add common environment for QSPI
Eugen Hristev (1): configs: sama5d2_xplained: add support QSPI flash boot
Tudor Ambarus (7): dt-bindings: spi: add bindings for Atmel QSPI driver spi: Add Atmel QuadSPI driver configs: sama5d2_xplained: enable qspi controller and flashes configs: sama5d27_som1_ek: enable qspi controller and flashes configs: sama5d2_xplained: add qspiflash_defconfig configs: sama5d27_som1_ek: add qspiflash_defconfig configs: sama5d27_som1_ek: qspi: use common memory layout
arch/arm/dts/at91-sama5d2_xplained.dts | 36 +- configs/sama5d27_som1_ek_mmc1_defconfig | 2 + configs/sama5d27_som1_ek_mmc_defconfig | 2 + configs/sama5d27_som1_ek_qspiflash_defconfig | 101 +++++ configs/sama5d2_xplained_emmc_defconfig | 5 + configs/sama5d2_xplained_mmc_defconfig | 5 + configs/sama5d2_xplained_qspiflash_defconfig | 101 +++++ configs/sama5d2_xplained_spiflash_defconfig | 5 + doc/device-tree-bindings/spi/atmel-quadspi.txt | 37 ++ drivers/spi/Kconfig | 7 + drivers/spi/Makefile | 1 + drivers/spi/atmel-quadspi.c | 535 +++++++++++++++++++++++++ include/configs/at91-sama5_common.h | 8 + include/configs/sama5d27_som1_ek.h | 7 - include/configs/sama5d2_xplained.h | 11 + 15 files changed, 837 insertions(+), 26 deletions(-) create mode 100644 configs/sama5d27_som1_ek_qspiflash_defconfig create mode 100644 configs/sama5d2_xplained_qspiflash_defconfig create mode 100644 doc/device-tree-bindings/spi/atmel-quadspi.txt create mode 100644 drivers/spi/atmel-quadspi.c