Ășt 14. 11. 2023 v 5:57 odesĂlatel Venkatesh Yadav Abbarapu <venkatesh.abbar...@amd.com> napsal: > > This series adds support for Xilinx qspi parallel and stacked memeories. > > In parallel mode, the current implementation assumes that a maximum of > two flashes are connected. The QSPI controller splits the data evenly > between both the flashes so, both the flashes that are connected in > parallel mode should be identical. > During each operation SPI-NOR sets 0th bit for CS0 & 1st bit for CS1 in > nor->flags. > > In stacked mode the current implementation assumes that a maximum of two > flashes are connected and both the flashes are of same make but can differ > in sizes. So, except the sizes all other flash parameters of both the flashes > are identical. > > Spi-nor will pass on the appropriate flash select flag to low level driver, > and it will select pass all the data to that particular flash. > > Write operation in parallel mode are performed in page size * 2 chunks as each > write operation results in writing both the flashes. For doubling the address > space each operation is performed at addr/2 flash offset, where addr is the > address specified by the user. > > Similarly for read and erase operations it will read from both flashes, so > size > and offset are divided by 2 and send to flash. > > > Changes in v2: > - Fixed the compilation issues. > Changes in v3: > - Fixed the CI issues. > Changes in v4: > - Removed the dio,dummy_bytes variables from zynq_qspi driver. > - Fix the compilation issue by including the DM_SERIAL config. > > Ashok Reddy Soma (4): > mtd: spi-nor: Add parallel and stacked memories support > mtd: spi-nor: Add parallel memories support for read_sr and read_fsr > mtd: spi-nor: Add parallel and stacked memories support in read_bar > and write_bar > spi: spi-uclass: Read chipselect and restrict capabilities > > Venkatesh Yadav Abbarapu (2): > spi: zynqmp_gqspi: Add parallel memories support in GQSPI driver > spi: zynq_qspi: Add parallel memories support in QSPI driver > > drivers/mtd/spi/sandbox.c | 2 +- > drivers/mtd/spi/spi-nor-core.c | 389 ++++++++++++++++++++++++++++----- > drivers/spi/altera_spi.c | 4 +- > drivers/spi/atcspi200_spi.c | 2 +- > drivers/spi/ath79_spi.c | 2 +- > drivers/spi/atmel_spi.c | 6 +- > drivers/spi/bcm63xx_hsspi.c | 42 ++-- > drivers/spi/bcm63xx_spi.c | 6 +- > drivers/spi/bcmbca_hsspi.c | 34 +-- > drivers/spi/cf_spi.c | 6 +- > drivers/spi/davinci_spi.c | 6 +- > drivers/spi/fsl_dspi.c | 18 +- > drivers/spi/fsl_espi.c | 4 +- > drivers/spi/fsl_qspi.c | 4 +- > drivers/spi/gxp_spi.c | 2 +- > drivers/spi/mpc8xx_spi.c | 4 +- > drivers/spi/mpc8xxx_spi.c | 10 +- > drivers/spi/mscc_bb_spi.c | 4 +- > drivers/spi/mxc_spi.c | 6 +- > drivers/spi/npcm_fiu_spi.c | 14 +- > drivers/spi/nxp_fspi.c | 2 +- > drivers/spi/octeon_spi.c | 2 +- > drivers/spi/omap3_spi.c | 4 +- > drivers/spi/pic32_spi.c | 2 +- > drivers/spi/rk_spi.c | 4 +- > drivers/spi/rockchip_sfc.c | 2 +- > drivers/spi/spi-aspeed-smc.c | 28 +-- > drivers/spi/spi-mxic.c | 6 +- > drivers/spi/spi-qup.c | 4 +- > drivers/spi/spi-sifive.c | 6 +- > drivers/spi/spi-sn-f-ospi.c | 2 +- > drivers/spi/spi-sunxi.c | 6 +- > drivers/spi/spi-synquacer.c | 4 +- > drivers/spi/spi-uclass.c | 23 +- > drivers/spi/stm32_qspi.c | 2 +- > drivers/spi/stm32_spi.c | 4 +- > drivers/spi/ti_qspi.c | 14 +- > drivers/spi/xilinx_spi.c | 4 +- > drivers/spi/zynq_qspi.c | 120 ++++++++-- > drivers/spi/zynq_spi.c | 6 +- > drivers/spi/zynqmp_gqspi.c | 140 ++++++++++-- > include/linux/mtd/spi-nor.h | 13 ++ > include/spi.h | 26 ++- > lib/acpi/acpi_device.c | 2 +- > 44 files changed, 765 insertions(+), 226 deletions(-) > > -- > 2.17.1 >
There are some issues related to sandbox reported in CI that's why v5 is required. Thanks, Michal -- Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91 w: www.monstr.eu p: +42-0-721842854 Maintainer of Linux kernel - Xilinx Microblaze Maintainer of Linux kernel - Xilinx Zynq ARM and ZynqMP ARM64 SoCs U-Boot custodian - Xilinx Microblaze/Zynq/ZynqMP/Versal SoCs