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path: root/drivers/mtd/spi
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* sf: Rename sf_ops.c to spi-flash.cJagan Teki2015-12-11-4/+5
| | | | | | | | | Since all spi-flash core operations are moved into sf_ops.c then it's better to renamed as spi-flash.c Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jteki@openedev.com>
* sf: Use static for file-scope functionsJagan Teki2015-12-11-5/+5
| | | | | | | | Used static for file-scope functions in sf_probe.c Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jteki@openedev.com>
* sf: sf_probe: Remove spi_slave pointer argumentJagan Teki2015-12-11-9/+10
| | | | | | | | | | | | | | Since spi_slave is a spi pointer in spi_flash{} then assign spi_slave{} pointer to flash->spi and remove spi_slave pointer argument to - spi_flash_probe_slave - spi_flash_scan Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jteki@openedev.com>
* sf: ops: Fix missing break on spansion read_barJagan Teki2015-12-11-0/+1
| | | | | | | | For assigning read_bar commands in spansion case, break is missing this patch add that break. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jteki@openedev.com>
* sf: Remove unneeded SST_BP and SST_WPJagan Teki2015-12-11-5/+2
| | | | | | | | | | | | SST parts added on sf_params.c supports both SST_WR which consits of both BP and WP and there is a spi controller ich which supports only BP so the relevent _write hook set based on "slave->op_mode_tx" hence there is no respective change required from flash side hance removed these. Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
* sf: Remove unneeded header includesJagan Teki2015-12-11-5/+0
| | | | | | | | Removed unneeded header includes in sf_ops and sf_probe Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jteki@openedev.com>
* sf: Flash power up read-only based on idcode0Jagan Teki2015-12-11-4/+4
| | | | | | | | | | | | Using macro's for flash power up read-only access code leads wrong behaviour hence use idcode0 for runtime detection, hence the flash which require this functionality gets detected at runtime. Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jteki@openedev.com>
* sf: Use simple name for register access functionsJagan Teki2015-12-11-26/+26
| | | | | | | | | | Most of the register access function are static, so used simple name to represent each. Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jteki@openedev.com>
* sf: Fix MakefileJagan Teki2015-12-11-5/+1
| | | | | | | | This patch removes unneeded ifdef and fixed accordingly. Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jteki@openedev.com>
* sf: Use static for file-scope functionsJagan Teki2015-12-11-23/+6
| | | | | | | | | Use static for file-scope functions and removed them from header files. Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
* sf: probe: Code cleanupJagan Teki2015-12-11-41/+39
| | | | | | | | | | | | - Move bar read code below the bar write hance both at once place, hence it easy for #ifdef macro only once and readable. - Move read_cmd_array at top Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jteki@openedev.com>
* sf: Move read_id code to sf_opsJagan Teki2015-12-11-19/+20
| | | | | | | | | | | read_id code is related to spi_flash stuff hence moved to sf_ops. Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jteki@openedev.com>
* sf: Move spi_flash_scan code to sf_opsJagan Teki2015-12-11-342/+357
| | | | | | | | | | | | | | | Intension is that sf_ops should deals all spi_flash related stuff and sf_probe (which should renamed future) should be an interface layer for spi_flash versus spi drivers. sf_ops => spi_flash interface sf_probe => interface layer vs spi_flash(sf_probe) to spi drivers Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jteki@openedev.com>
* sf: spi_flash_validate_params => spi_flash_scanJagan Teki2015-12-11-71/+76
| | | | | | | | | | | | | | | Rename spi_flash_validate_params to spi_flash_scan as this code not only deals with params setup but also configure all spi_flash attributes. And also moved all flash related code into spi_flash_scan for future functionality addition. Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jteki@openedev.com>
* Merge branch 'master' of git://git.denx.de/u-boot-spiTom Rini2015-11-19-121/+18
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| * sf: Correct flash->flags for SST flashBin Meng2015-11-18-4/+5
| | | | | | | | | | | | | | | | flash->flags for SST flash should be updated for both DM and non-DM flash drivers. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
| * spi: sf_ops: Check the return value from spi_flash_cmd_read_status()Fabio Estevam2015-11-18-2/+8
| | | | | | | | | | | | | | | | | | | | | | We should check the return value from spi_flash_cmd_read_status() and propagate it in the case of error. This fixes a defect caught by Coverity. Reported-by: Tom Rini <trini@konsulko.com> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
| * sf: Add lock ops for SST SPI NOR flashFabio Estevam2015-11-18-3/+5
| | | | | | | | | | | | | | | | | | | | SST SPI NOR flash has the same locking programming bits as ST Micro - added support for it. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> [Minor change on commit message] Signed-off-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
| * sf: Remove eeprom_m95xxx test driverJagan Teki2015-11-18-112/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The relevent boards which used this driver got zapped in previous release and the driver is never used in the code and also it doesn't use/do any spi-flash operations. Commit details for relevent removed boards: "ARM: at91: remove non-generic boards" (sha1: f6b42c140387589ded24749781ce565571092eac) Cc: Tom Rini <trini@konsulko.com> Cc: Albin Tonnerre <albin.tonnerre@free-electrons.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
* | dm: sf: Add support for all targets which requires MANUAL_RELOCMichal Simek2015-11-19-0/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | It is follow up patch based on "dm: Add support for all targets which requires MANUAL_RELOC" (sha1: 484fdf5ba058b07be5ca82763aa2b72063540ef3) to update function pointers for DM. Using post_bind is not ideal but it is one on current option what can be used. Variable reloc_done has to be used do not call relocation after every bind. Maybe new core functions should be introduced for this case. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* | spl: change return values of spl_*_load_image()Nikita Kiryanov2015-11-18-5/+12
|/ | | | | | | | | | | | | | | | | | | | | | | Make spl_*_load_image() functions return a value instead of hanging if a problem is encountered. This enables main spl code to make the decision whether to hang or not, thus preparing it to support alternative boot devices. Some boot devices (namely nand and spi) do not hang on error. Instead, they return normally and SPL proceeds to boot the contents of the load address. This is considered a bug and is rectified by hanging on error for these devices as well. Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> Cc: Igor Grinberg <grinberg@compulab.co.il> Cc: Tom Rini <trini@konsulko.com> Cc: Simon Glass <sjg@chromium.org> Cc: Ian Campbell <ijc@hellion.org.uk> Cc: Hans De Goede <hdegoede@redhat.com> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: Jagan Teki <jteki@openedev.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* sf: Fix NULL pointer exception for flashes without lock methodsBin Meng2015-11-13-6/+12
| | | | | | | | | | | commit c3c016c "sf: Add SPI NOR protection mechanism" introduced flash_lock()/flash_unlock()/flash_is_locked() methods for SPI flash, but not every flash driver supplies these. We should test these methods against NULL before actually calling them. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
* sf: Add SPI NOR protection mechanismFabio Estevam2015-11-05-2/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | Many SPI flashes have protection bits (BP2, BP1 and BP0) in the status register that can protect selected regions of the SPI NOR. Take these bits into account when performing erase operations, making sure that the protected areas are skipped. Tested on a mx6qsabresd: => sf probe SF: Detected M25P32 with page size 256 Bytes, erase size 64 KiB, total 4 MiB => sf protect lock 0x3f0000 0x10000 => sf erase 0x3f0000 0x10000 offset 0x3f0000 is protected and cannot be erased SF: 65536 bytes @ 0x3f0000 Erased: ERROR => sf protect unlock 0x3f0000 0x10000 => sf erase 0x3f0000 0x10000 SF: 65536 bytes @ 0x3f0000 Erased: OK Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> [re-worked to fit the lock common to dm and non-dm] Signed-off-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Heiko Schocher <hs@denx.de> Reviewed-by: Jagan Teki <jteki@openedev.com>
* sf: Add SPI protection mechanism from the kernelFabio Estevam2015-11-05-0/+173
| | | | | | | | | | | | | | | | | | Add the SPI NOR protection mechanism from the kernel. This code is based on the work from Brian Norris <computersforpeace@gmail.com> Here is the commit details: "mtd: spi-nor: refactor block protection functions" (sha1: 62593cf40b23b523b9fc9334ca61ba6c595ebb09) Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Heiko Schocher <hs@denx.de> Reviewed-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
* Merge branch 'master' of git://git.denx.de/u-boot-spiTom Rini2015-10-28-100/+115
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| * sf: Add FSR support to spi_flash_cmd_wait_readyJagan Teki2015-10-25-9/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds flag status register reading support to spi_flash_cmd_wait_ready. Cc: Simon Glass <sjg@chromium.org> Cc: Marek Vasut <marex@denx.de> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Stefan Roese <sr@denx.de> Cc: Tom Warren <twarren@nvidia.com> Cc: Tom Rini <trini@konsulko.com> Cc: Hou Zhiqiang <B48286@freescale.com> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
| * sf: Update status reg check in spi_flash_cmd_wait_readyJagan Teki2015-10-25-58/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current flash wait_ready logic is not modular to add new register status check, hence updated the status check for adding few more register checks in future. Below are the sf speed runs with 'sf update' on whole flash, 16MiB. => sf update 0x100 0x0 0x1000000 device 0 whole chip 16777216 bytes written, 0 bytes skipped in 59.564s, speed 289262 B/s => sf update 0x100 0x0 0x1000000 device 0 whole chip 16777216 bytes written, 0 bytes skipped in 62.549s, speed 275036 B/s => sf update 0x100 0x0 0x1000000 device 0 whole chip 16777216 bytes written, 0 bytes skipped in 61.276s, speed 284359 B/s Cc: Simon Glass <sjg@chromium.org> Cc: Marek Vasut <marex@denx.de> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Stefan Roese <sr@denx.de> Cc: Tom Warren <twarren@nvidia.com> Cc: Tom Rini <trini@konsulko.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
| * sf: Make flash->flags use for generic usageJagan Teki2015-10-25-5/+9
| | | | | | | | | | | | | | | | | | | | Use the flash->flags for generic usage, not only for dm-spi-flash, this will be used for future flag additions. [Correct the spi flash flags detect logic] Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
| * sf: Optimize BAR write codeJagan Teki2015-10-25-28/+13
| | | | | | | | | | | | | | | | | | | | Optimized spi-flash bar writing code and also removed unnecessary bank_sel in read_ops. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
| * sf: Add spi_flash_read_barJagan Teki2015-10-25-19/+34
| | | | | | | | | | | | | | | | | | Add spi_flash_read_bar function for reading bar and discovering bar commands at probe time. Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
| * sf: Return bank_sel, if flash->bank_curr == bank_selJagan Teki2015-10-25-1/+1
| | | | | | | | | | | | | | | | | | If computed bank_sel is same as flash->bank_curr which is computed at probe time, then return the bank_sel instead of zero. Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
| * sf: params: Add IS25LP128 part supportJagan Teki2015-10-25-0/+1
| | | | | | | | | | | | | | | | Added support for IS25LP128 flash part. Signed-off-by: Jagan Teki <jteki@openedev.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Michal Simek <michal.simek@xilinx.com>
| * sf: params: Add IS25LP064 part supportJagan Teki2015-10-25-0/+1
| | | | | | | | | | | | | | | | Added support for IS25LP064 flash part. Signed-off-by: Jagan Teki <jteki@openedev.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Michal Simek <michal.simek@xilinx.com>
| * sf: params: Add IS25LP032 part supportJagan Teki2015-10-25-0/+3
| | | | | | | | | | | | | | | | Added support for IS25LP032 flash part. Signed-off-by: Jagan Teki <jteki@openedev.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Michal Simek <michal.simek@xilinx.com>
* | dm: Rename dev_get_parentdata() to dev_get_parent_priv()Simon Glass2015-10-23-2/+2
|/ | | | | | | | The current name is inconsistent with other driver model data access functions. Rename it and fix up all users. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
* mtd: sf: Add support AT26DF081A chipYao Yuan2015-10-11-0/+1
| | | | | | | | AT26DF081A is the spi flash type of TWR-MEM(SCH-26248) card. We can access the flash through DSPI2 on LS1021ATWR board. Signed-off-by: Yuan Yao <yao.yuan@freescale.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
* of: clean up OF_CONTROL ifdef conditionalsMasahiro Yamada2015-08-18-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | We have flipped CONFIG_SPL_DISABLE_OF_CONTROL. We have cleansing devices, $(SPL_) and CONFIG_IS_ENABLED(), so we are ready to clear away the ugly logic in include/fdtdec.h: #ifdef CONFIG_OF_CONTROL # if defined(CONFIG_SPL_BUILD) && !defined(SPL_OF_CONTROL) # define OF_CONTROL 0 # else # define OF_CONTROL 1 # endif #else # define OF_CONTROL 0 #endif Now CONFIG_IS_ENABLED(OF_CONTROL) is the substitute. It refers to CONFIG_OF_CONTROL for U-boot proper and CONFIG_SPL_OF_CONTROL for SPL. Also, we no longer have to cancel CONFIG_OF_CONTROL in include/config_uncmd_spl.h and scripts/Makefile.spl. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
* sf: ops: Add spi_flash_copy_mmap functionTom Rini2015-08-17-1/+7
| | | | | | | | | | When doing a memory mapped copy we may have DMA available and thus need to have this copy abstracted so that the driver can do it, rather than a simple memcpy. Signed-off-by: Tom Rini <trini@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
* sf: Make 4K sector support configurableMarek Vasut2015-08-17-0/+19
| | | | | | | | | | | | | | | | 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>
* sf: kconfig: add kconfig options for spi flashesNikita Kiryanov2015-08-02-0/+44
| | | | | | | | | | Add kconfig options for various SPI flashes and use them in cm-fx6 defconfig. Cc: Jagan Teki <jteki@openedev.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> Acked-by: Igor Grinberg <grinberg@compulab.co.il>
* sf: Kconfig: Add SPI_FLASH_BAR entryJagan Teki2015-07-01-0/+8
| | | | | | Added SPI_FLASH_BAR entry on Kconfig with help description Signed-off-by: Jagan Teki <jteki@openedev.com>
* sf: Kconfig: Add SPI_FLASH_DATAFLASH entryJagan Teki2015-07-01-10/+15
| | | | | | | | | | | Added SPI_FLASH_DATAFLASH entry on Kconfig with help description. data flash driver comes with good decription, hence moved the same on to kconfig help decription. Signed-off-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Simon Glass <sjg@chromium.org> Cc: Haikun Wang <haikun.wang@freescale.com>
* sf: Kconfig: Add SPI_FLASH_MTD entryJagan Teki2015-07-01-0/+12
| | | | | | | | Added SPI_FLASH_MTD entry on Kconfig with help description. Signed-off-by: Jagan Teki <jteki@openedev.com> Acked-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Cc: Heiko Schocher <hs@denx.de>
* sf: Kconfig: Update SPI_FLASH entryJagan Teki2015-07-01-9/+9
| | | | | | | Updated SPI_FLASH entry on Kconfig with depends on and along with config help description. Signed-off-by: Jagan Teki <jteki@openedev.com>
* sf: Add Kconfig menu entryJagan Teki2015-07-01-0/+4
| | | | | | Added Kconfig menu ... endmenu enties for spi flash suppor Signed-off-by: Jagan Teki <jteki@openedev.com>
* sf: dataflash: Rename to CONFIG_SPI_FLASH_DATAFLASHJagan Teki2015-07-01-1/+1
| | | | | | | Rename CONFIG_SF_DATAFLASH into CONFIG_SPI_FLASH_DATAFLASH as it follows the naming convention same as remaining configs. Signed-off-by: Jagan Teki <jteki@openedev.com>
* spi/sf: Minor cleanupsJagan Teki2015-07-01-9/+9
| | | | | | | - Adjust tab spaces - Add comments Signed-off-by: Jagan Teki <jteki@openedev.com>
* sf: update sst25wf040b flash paramsHaikun Wang2015-06-30-1/+1
| | | | | | | | | sst25wf040b doesn't support Auto Address Increment Programming command. Remove SST_WR flag. Signed-off-by: Haikun Wang <B53464@freescale.com> Tested-by: Haikun Wang <haikun.wang@freescale.com> Reviewed-by: Jagannadh Teki <jteki@openedev.com>
* mtd, spi: Add MTD layer driverDaniel Schwierzeck2015-06-30-5/+116
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* dm: sf: Add Atmel DataFlash spi flash driverHaikun Wang2015-06-30-0/+712
| | | | | | | | | | | | | | | | | | | | | | | | | | Atmel DataFlash chips have commands different from common spi flash commands. Atmel DataFlash also have special page-size. This driver add support for accessing Atmel DataFlash. It is based on the Driver Model. Example: => sf probe 1:0 SPI DataFlash: Detected AT45DB021B with page size 264 Bytes, erase size 264 Bytes, total 264 KiB, revision d => sf erase 0 42000 SF: 270336 bytes @ 0x0 Erased: OK => mw.l 82000000 45444342 20000 => sf write 82000000 0 42000 SF: 270336 bytes @ 0x0 Written: OK => sf read 83000000 0 42000 SF: 270336 bytes @ 0x0 Read: OK => cmp.b 82000000 83000000 42000 Total of 270336 byte(s) were the same Signed-off-by: Haikun Wang <haikun.wang@freescale.com> Tested-by: Haikun Wang <haikun.wang@freescale.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Chakra Divi <cdivi@openedev.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
generated by cgit v1.1 at 2024-10-21 11:50:55 +0000