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path: root/drivers/mtd/spi/sf_internal.h
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2015-08-17sf: Make 4K sector support configurableMarek Vasut
Make the support for 4K subpage I/O on a SPI NOR flash configurable. A board which requires the SPI NOR to be accessed in larger 32KiB or 64KiB pages can disable the 4K subpage support, but by default, the support for 4K subpage I/O is enabled. The functionality of this option is the same as CONFIG_MTD_SPI_NOR_USE_4K_SECTORS in Linux. This is extremely useful in case one uses UBI on a SPI NOR flash. UBI needs at least 15k EBs and can not work on a flash which uses 4k ones, so disabling the support for 4k subpages lets UBI work on such flash. Signed-off-by: Marek Vasut <marex@denx.de> Reviewed-by: Jagan Teki <jteki@openedev.com>
2015-07-01spi/sf: Minor cleanupsJagan Teki
- Adjust tab spaces - Add comments Signed-off-by: Jagan Teki <jteki@openedev.com>
2015-06-30mtd, spi: Add MTD layer driverDaniel Schwierzeck
Add MTD layer driver for spi, original patch from: http://git.denx.de/?p=u-boot/u-boot-mips.git;a=commitdiff;h=bb246819cdc90493dd7089eaa51b9e639765cced Changes from Heiko Schocher against this patch: - Remove compile error if not defining CONFIG_SPI_FLASH_MTD: LD drivers/mtd/spi/built-in.o drivers/mtd/spi/sf_probe.o: In function `spi_flash_mtd_unregister': /home/hs/abb/imx6/u-boot/drivers/mtd/spi/sf_internal.h:168: multiple definition of `spi_flash_mtd_unregister' drivers/mtd/spi/sf_params.o:/home/hs/abb/imx6/u-boot/drivers/mtd/spi/sf_internal.h:168: first defined here drivers/mtd/spi/sf_ops.o: In function `spi_flash_mtd_unregister': /home/hs/abb/imx6/u-boot/drivers/mtd/spi/sf_internal.h:168: multiple definition of `spi_flash_mtd_unregister' drivers/mtd/spi/sf_params.o:/home/hs/abb/imx6/u-boot/drivers/mtd/spi/sf_internal.h:168: first defined here make[1]: *** [drivers/mtd/spi/built-in.o] Fehler 1 make: *** [drivers/mtd/spi] Fehler 2 - Add a README entry. - Add correct writebufsize, to fit with Linux v3.14 MTD, UBI/UBIFS sync. Note (From Jagan): For testing raw mtd parition erase/read/write operations using cmd_sf, sf_mtd should be required to register the spi flash device to MTD layer but the sf_mtd_info ops were not required until and unless if we use any flash filesystem layer say for example UBI. Due to this the foot-print got increased ~290bytes in non-UBI case here that should be acceptible. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Signed-off-by: Heiko Schocher <hs@denx.de> Tested-by: Jagannadh Teki <jteki@openedev.com> Reviewed-by: Jagannadh Teki <jteki@openedev.com>
2015-04-28sf: Fix to compute proper sector_sizeJagannadha Sutradharudu Teki
Upto now flash sector_size is assigned from params which isn't necessarily a sector size from vendor, so based on the SECT_* flags from flash_params the erase_size will compute and it will become the sector_size finally. Bug report (from Bin Meng): => sf probe SF: Detected SST25VF016B with page size 256 Bytes, erase size 4 KiB, total 2 MiB, mapped at ffe00000 => sf erase 0 +100 SF: 65536 bytes @ 0x0 Erased: OK Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Reported-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
2015-04-23Revert "spi: add config option to enable the WP pin function on st micron ↵Jagannadha Sutradharudu Teki
flashes" This reverts commit 562f8df18da62ae02c4ace1e530451fe82c3312d. Note: Even un-reverting this patch couldn't works as expected, based on the latest testing from Heiko Schocher. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Heiko Schocher <hs@denx.de>
2014-12-13sf: Enable byte program supportJagannadha Sutradharudu Teki
Enabled byte program support for sst flashes in sf. Few controllers will only support BP, so this patch gives a tx transfer flag to set the BP so-that sf will operate on byte program transfer. A new TX operation mode SPI_OPM_TX_BP is introduced for such SPI controller to use byte program op for SST flash. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
2014-12-13spi: sf: Support byte program for sst spi flashBin Meng
Currently if SST flash advertises SST_WP flag in the params table the word program command (ADh) with auto address increment will be used for the flash write op. However some SPI controllers do not support the word program command (like the Intel ICH 7), the byte programm command (02h) has to be used. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
2014-12-13spi: Fix flag collision for SST_WPSimon Glass
At present SECT_4K is the same as SST_WP so we cannot tell these apart. Fix this so that the table in sf_params.c can be used correctly. Reported-by: Jens Rottmann <Jens.Rottmann@adlinktech.com> Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
2014-12-13sf: Fix look for the fastest read commandJagannadha Sutradharudu Teki
Few of the spi controllers are only supports array slow read which is quite different behaviour compared to others. So this fix on sf will correctly handle the slow read supported controllers. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
2014-10-22sf: Tidy up public and private header filesSimon Glass
Since spi_flash.h is supposed to be the public API for SPI flash, move private things to sf_internal.h. Also tidy up a few comment nits. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
2014-07-23spi: add config option to enable the WP pin function on st micron flashesHeiko Schocher
enable the W#/Vpp signal to disable writing to the status register on ST MICRON flashes like the N25Q128 thorugh the new config option CONFIG_SYS_SPI_ST_ENABLE_WP_PIN Signed-off-by: Heiko Schocher <hs@denx.de> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
2014-01-12sf: Code cleanupsJagannadha Sutradharudu Teki
- comment typo's - func args have a proper names Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
2014-01-11sf: Divide flash register ops from QEB codeJagannadha Sutradharudu Teki
QEB code comprises of couple of flash register read/write operations, this patch moved flash register operations on to sf_op Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
2014-01-11sf: Add macronix set QEB supportJagannadha Sutradharudu Teki
This patch adds set QEB support for macronix flash devices which are trying to program/read quad operations. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
2014-01-11sf: Discover read dummy_byteJagannadha Sutradharudu Teki
Discovered the read dummy_byte based on the configured read command. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
2014-01-11sf: Add QUAD_IO_FAST read supportJagannadha Sutradharudu Teki
This patch adds support QUAD_IO_FAST read command. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
2014-01-11sf: Set quad enable bit supportJagannadha Sutradharudu Teki
This patch provides support to set the quad enable bit on flash. quad enable bit needs to set before performing any quad IO operations on respective SPI flashes. Currently added set quad enable bit for winbond and spansion flash devices. stmicro flash doesn't require to set as qeb is volatile. remaining flash devices support will add in future patches. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
2014-01-11sf: Add quad read/write commands supportJagannadha Sutradharudu Teki
This patch add quad commands support like - QUAD_PAGE_PROGRAM => for write program - QUAD_OUTPUT_FAST ->> for read program Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
2014-01-11sf: Add extended read commands supportJagannadha Sutradharudu Teki
Current sf uses FAST_READ command, this patch adds support to use the different/extended read command. This implementation will determine the fastest command by taking the supported commands from the flash and the controller, controller is always been a priority. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
2013-12-09sandbox: spi: Add new SPI flash driverMike Frysinger
This adds a SPI flash driver which simulates SPI flash clients. Currently supports the bare min that U-Boot requires: you can probe, read, erase, and write. Should be easy to extend to make it behave more exactly like a real SPI flash, but this is good enough to merge now. sjg@chromium.org added a README and tidied up code a little. Added a required map_sysmem() for sandbox. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2013-10-16sf: Add GPL-2.0+ SPDX-License-Identifier for missing onesJagannadha Sutradharudu Teki
Added GPL-2.0+ SPDX-License-Identifier for missed sf source files. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Signed-off-by: Bo Shen <voice.shen@atmel.com>
2013-10-16sf: Minor cleanups.Jagannadha Sutradharudu Teki
- Add comments. - Renamed few macros. - Add tabs. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> Signed-off-by: Bo Shen <voice.shen@atmel.com>
2013-10-07sf: Minor cleanupsJagannadha Sutradharudu Teki
- Add spaces, tabs - Commenting. - Rearrange code. - Add static qualifier for missing func. - Remove memory_map from ramtron.c - Ramtron: spi_flash_internal.h -> sf_internal.h Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
2013-10-07sf: Rename spi_flash filesJagannadha Sutradharudu Teki
Renamed: spi_flash.c -> sf.c spi_flash_internal.h -> sf_internal.h spi_flash_ops.c -> sf_ops.c spi_flash_probe.c -> sf_probe.c Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
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