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path: root/drivers/mtd/spi/sf_probe.c
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* dm: spi: Move slave details to child platdataSimon Glass2015-01-29-1/+2
| | | | | | | | | | | | | | | | At present we go through various contortions to store the SPI slave's chip select in its private data. This only exists when the slave is active so must be set up when it is probed. Until the device is probed we don't actually know what chip select it will appear on. However, now that we can support per-child platform data, we can use that instead. This allows us to set up the chip select when the child is bound, and avoid the messy contortions. Unfortunately this is a fairly large change and it seems to be difficult to break it down further. Signed-off-by: Simon Glass <sjg@chromium.org>
* sf: Enable byte program supportJagannadha Sutradharudu Teki2014-12-13-2/+6
| | | | | | | | | | | | | | 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>
* sf: Fix look for the fastest read commandJagannadha Sutradharudu Teki2014-12-13-0/+1
| | | | | | | | | | | 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>
* dm: Convert spi_flash_probe() and 'sf probe' to use driver modelSimon Glass2014-10-22-2/+64
| | | | | | | | | | | | | | | | | | | We want the SPI flash probing feature to operate as a standard driver. Add a driver for the basic probing feature used by most boards. This will be activated by device_probe() as with any other driver. The 'sf probe' command currently keeps track of the SPI slave that it last used. This doesn't work with driver model, since some other driver or system may have probed the device and have access to it too. On the other hand, if we try to probe a device twice the second probe is a nop with driver model. Fix this by searching for the matching device, removing it, and then probing it again. This should work as expected regardless of other device activity. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
* spi: Use error return value in sf_opsSimon Glass2014-10-22-33/+57
| | | | | | | | | | | | | Adjust spi_flash_probe_slave() to return an error value instead of a pointer so we get the correct error return. Have the caller allocate memory for spi_flash to simplify error handling, and also so that driver model can use its existing allocated memory. Add a spi.h include in the sf_params file. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
* spi: add config option to enable the WP pin function on st micron flashesHeiko Schocher2014-07-23-0/+30
| | | | | | | | | 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>
* sf: probe: Fix quad bit set pathPoddar, Sourav2014-06-08-10/+10
| | | | | | | | | | Currently, flash quad bit is set in "spi_flash_validate_params" and later at the end in the same api, we write 0 to status register for few flashes, thereby overriding the quad bit set. This fix moves the quad bit setting outside this api in "spi_flash_probe_slave" Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
* mtd: spi: Fix page size for S25FL032P,S25FL064PMarek Vasut2014-03-17-1/+15
| | | | | | | | | | | | The commit 6af8dc3ebccb3b1e4b2e479315e49545e7f53150 broke support for S25FL032P and S25FL064P by carelessly removing the code handling special page size for these two SPI NOR flashes and unifying the code under the assumption that Extended JEDEC ID of 0x4d00 always implies 512b page size. Add special case handling for these two SPI NOR flashes. Signed-off-by: Marek Vasut <marex@denx.de> Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
* sf: Squash the malloc+memset comboMarek Vasut2014-03-17-2/+1
| | | | | | | Squash the malloc()+memset() combo in favor of calloc(). Signed-off-by: Marek Vasut <marex@denx.de> Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
* sf: Add CONFIG_SF_DUAL_FLASHJagannadha Sutradharudu Teki2014-01-12-0/+2
| | | | | | | This config will use for defining greater than single flash support. currently - DUAL_STACKED and DUAL_PARALLEL. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
* sf: Add dual memories support - DUAL_PARALLELJagannadha Sutradharudu Teki2014-01-12-5/+6
| | | | | | | | | This patch added support for accessing dual memories in parallel connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
* sf: Add dual memories support - DUAL_STACKEDJagannadha Sutradharudu Teki2014-01-12-1/+7
| | | | | | | | | This patch added support for accessing dual memories in stacked connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
* sf: Code cleanupsJagannadha Sutradharudu Teki2014-01-12-2/+2
| | | | | | | - comment typo's - func args have a proper names Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
* sf: Divide flash register ops from QEB codeJagannadha Sutradharudu Teki2014-01-11-0/+44
| | | | | | | 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>
* sf: Add macronix set QEB supportJagannadha Sutradharudu Teki2014-01-11-0/+4
| | | | | | | 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>
* sf: Discover read dummy_byteJagannadha Sutradharudu Teki2014-01-11-0/+19
| | | | | | | Discovered the read dummy_byte based on the configured read command. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
* sf: Add QUAD_IO_FAST read supportJagannadha Sutradharudu Teki2014-01-11-0/+2
| | | | | | This patch adds support QUAD_IO_FAST read command. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
* sf: Separate the flash params tableJagannadha Sutradharudu Teki2014-01-11-143/+3
| | | | | | | | Moved the flash params table from sf_probe.c and placed on to sf_params.c, hence flash params file will alter based on new addons. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
* sf: probe: Enable RD_FULL and WR_QPPJagannadha Sutradharudu Teki2014-01-11-30/+30
| | | | | | | | | This patch enabled RD_FULL and WR_QPP for supported flashes in micron, winbond and spansion. Remaining parts will be add in future patches. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
* sf: Set quad enable bit supportJagannadha Sutradharudu Teki2014-01-11-0/+28
| | | | | | | | | | | | | 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>
* sf: Add quad read/write commands supportJagannadha Sutradharudu Teki2014-01-11-85/+93
| | | | | | | | 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>
* sf: Add extended read commands supportJagannadha Sutradharudu Teki2014-01-11-85/+105
| | | | | | | | | | | 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>
* sf: probe: add support for MX25L2006ELuka Perkov2013-12-18-0/+1
| | | | | | | Add support for Macronix MX25L2006E SPI flash. Signed-off-by: Luka Perkov <luka@openwrt.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
* sf: probe: Hex values are in lower caseLuka Perkov2013-12-18-1/+1
| | | | | | | | All other hex values in sf_probe.c are in lower case so we should fix this one too. Signed-off-by: Luka Perkov <luka@openwrt.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
* sandbox: spi: Add new SPI flash driverMike Frysinger2013-12-09-1/+2
| | | | | | | | | | | | | | 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>
* spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT nodeSimon Glass2013-12-09-4/+21
| | | | | | | This allows us to put the SPI flash chip inside the SPI interface node, with U-Boot finding the correct bus and chip select automatically. Signed-off-by: Simon Glass <sjg@chromium.org>
* sf: probe: Add missing Atmel at25df321 flashBo Shen2013-10-16-0/+1
| | | | | | | | | As the spi flash transfer to multiple parts, it is forgot to add Atmel AT25DF321 spi flash support, which broken several Atmel EK boards which this chip. So, add it Signed-off-by: Bo Shen <voice.shen@atmel.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
* sf: Add GPL-2.0+ SPDX-License-Identifier for missing onesJagannadha Sutradharudu Teki2013-10-16-1/+1
| | | | | | | | 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>
* sf: Minor cleanups.Jagannadha Sutradharudu Teki2013-10-16-2/+3
| | | | | | | | | - 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>
* sf: Minor cleanupsJagannadha Sutradharudu Teki2013-10-07-3/+4
| | | | | | | | | | | - 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>
* sf: Add memory mapped read supportPoddar, Sourav2013-10-07-0/+1
| | | | | | | | | | | | | | | | | | Qspi controller can have a memory mapped port which can be used for data read. Added support to enable memory mapped port read. This patch enables the following: - It enables exchange of memory map address between mtd and qspi through the introduction of "memory_map" flag. - Add support to communicate to the driver that memory mapped transfer is to be started through introduction of new flags like "SPI_XFER_MEM_MAP" and "SPI_XFER_MEM_MAP_END". This will enable the spi controller to do memory mapped configurations if required. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
* sf: probe: Add support for EN25S64Priyanka Jain2013-10-07-0/+1
| | | | | | | Add support for EON EN25S64 SPI flash. Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com> Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
* sf: Rename spi_flash filesJagannadha Sutradharudu Teki2013-10-07-0/+360
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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