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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org Hi, On 3/19/21 8:51 AM, tkuw584924@gmail.com wrote: > EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe > > From: Takahiro Kuwano > > The S25HL-T/S25HS-T family is the Cypress Semper Flash with Quad SPI. > > The summary datasheets can be found in the following links. > https://www.cypress.com/file/424146/download (256Mb/512Mb/1Gb, single die) > https://www.cypress.com/file/499246/download (2Gb/4Gb, dual/quad die) > > The full version can be found in the following links (registration > required). > https://community.cypress.com/t5/Semper-Flash-Access-Program/Datasheet-Semper-Flash-with-Quad-SPI/ta-p/260789?attachment-id=19522 > https://community.cypress.com/t5/Semper-Flash-Access-Program/Datasheet-2Gb-MCP-Semper-Flash-with-Quad-SPI/ta-p/260823?attachment-id=29503 Takahiro, looks like I can't access the dual/quad die full datasheet, not enough rights, even after creating an account. How are multi die ops handled when crossing a die boundary? > > Tested on Xilinx Zynq-7000 FPGA board. Have you tried to erase/read/write multiple dies with a single request? Cheers, ta > > Changes in v4: > - Reword 'legacy' to 'default' > - Rename spi_nor_read() to spi_nor_default_ready() > - Fix dummy cycle calculation in spansion_read_any_reg() > - Modify comment for spansion_write_any_reg() > - Merge block comments about SMPT in s25hx_t_post_sfdp_fixups() > - Remove USE_CLSR flags from S25HL02GT and S25HS02GT > > Changes in v3: > - Split into multiple patches > - Remove S25HL256T and S25HS256T > - Add S25HL02GT and S25HS02GT > - Add support for multi-die package parts support > - Cleanup Read/Write Any Register implementation > - Remove erase_map fix for top/split sector layout > - Set ECC data unit size (16B) to writesize > > Changes in v2: > - Remove SPI_NOR_SKIP_SFDP flag and clean up related fixups > - Check CFR3V[4] to determine page_size instead of force 512B > - Depend on the patchset below to support non-uniform sector layout > https://lore.kernel.org/linux-mtd/cover.1601612872.git.Takahiro.Kuwano@infineon.com/ > > Takahiro Kuwano (6): > mtd: spi-nor: core: Add the ->ready() hook > mtd: spi-nor: core: Expose spi_nor_clear_sr() to manufacturer drivers > mtd: spi-nor: spansion: Add support for Read/Write Any Register > mtd: spi-nor: spansion: Add support for volatile QE bit > mtd: spi-nor: spansion: Add status check for multi-die parts > mtd: spi-nor: spansion: Add s25hl-t/s25hs-t IDs and fixups > > drivers/mtd/spi-nor/core.c | 10 +- > drivers/mtd/spi-nor/core.h | 3 + > drivers/mtd/spi-nor/spansion.c | 325 +++++++++++++++++++++++++++++++++ > 3 files changed, 334 insertions(+), 4 deletions(-) > > -- > 2.25.1 > ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/