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path: root/drivers/spi/altera_spi.c
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* spi: altera: Move the config options to the topMarek Vasut2014-10-27-8/+8
| | | | | | | | | | | | | Just move the configuration options scattered all over the driver to the top of the source file. No functional change. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Chin Liang See <clsee@altera.com> Cc: Dinh Nguyen <dinguyen@altera.com> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: Pavel Machek <pavel@denx.de> Acked-by: Pavel Machek <pavel@denx.de> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
* spi: altera: Clean up the use of variable dMarek Vasut2014-10-27-10/+13
| | | | | | | | | | | | | | | | The variable d is used in rather questionable way. Rework the code a bit so it's clearer what it does. Also, rename the variable from d to data to make it's name less mysterious. Finally, change it's data type to uint32_t , since it's accessed as a 32bit number. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Chin Liang See <clsee@altera.com> Cc: Dinh Nguyen <dinguyen@altera.com> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: Pavel Machek <pavel@denx.de> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Pavel Machek <pavel@denx.de> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
* spi: altera: Zap endless loopMarek Vasut2014-10-27-2/+11
| | | | | | | | | | | | | | | The driver contained an endless loop when waiting for TX completion, this is a bad idea since if the hardware fails, the loop might spin forever. Add timeout and handle it. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Chin Liang See <clsee@altera.com> Cc: Dinh Nguyen <dinguyen@altera.com> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: Pavel Machek <pavel@denx.de> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Pavel Machek <pavel@denx.de> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
* spi: altera: Clean up most checkpatch issuesMarek Vasut2014-10-27-10/+13
| | | | | | | | | | | | | | | | | This patch just zaps most of the checkpatch cries present in the driver. There is one more left, which will be addressed separately. There is no functional change. This patch also adds a bunch of newlines all around the place, this is to make the code much more readable. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Chin Liang See <clsee@altera.com> Cc: Dinh Nguyen <dinguyen@altera.com> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: Pavel Machek <pavel@denx.de> Acked-by: Pavel Machek <pavel@denx.de> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
* spi: altera: Clean up bit definitionsMarek Vasut2014-10-27-13/+13
| | | | | | | | | | | | | | Clean up the definitions of bits in the Altera SPI driver, there is no need to put braces around numbers afterall. No functional change. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Chin Liang See <clsee@altera.com> Cc: Dinh Nguyen <dinguyen@altera.com> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: Pavel Machek <pavel@denx.de> Acked-by: Pavel Machek <pavel@denx.de> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
* spi: altera: Use struct-based register accessMarek Vasut2014-10-27-24/+25
| | | | | | | | | | | | | | | | Zap the offset-based register access and use the struct-based one as this is the preferred method. No functional change, but there are some line-over-80 problems in the driver, which will be addressed later. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Chin Liang See <clsee@altera.com> Cc: Dinh Nguyen <dinguyen@altera.com> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: Pavel Machek <pavel@denx.de> Acked-by: Pavel Machek <pavel@denx.de> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
* spi: Add GPL-2.0+ SPDX-License-Identifier for missing filesJagannadha Sutradharudu Teki2013-10-16-1/+1
| | | | | | | Added GPL-2.0+ SPDX-License-Identifier for missed spi source files. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
* spi: Use spi_alloc_slave() in each SPI driverSimon Glass2013-03-19-3/+1
| | | | | | | | Rather than each driver having its own way to allocate a SPI slave, use the new allocation function everywhere. This will make it easier to extend the interface without breaking drivers. Signed-off-by: Simon Glass <sjg@chromium.org>
* altera_spi: add spi_set_speedThomas Chou2011-02-08-0/+5
| | | | | | | | | Added this for mmc_spi driver. Though altera spi core does not support programmable speed. It is fixed when configured in sopc-builder. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Scott McNutt <smcnutt@psyent.com>
* spi: add altera spi controller supportThomas Chou2010-05-28-0/+165
This patch adds the driver of altera spi controller, which is used as epcs/spi flash controller. It also works with mmc_spi driver. This driver support more than one spi bus, with base list declared #define CONFIG_SYS_ALTERA_SPI_LIST { BASE_0,BASE_1,... } Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Tested-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Scott McNutt <smcnutt@psyent.com>
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