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path: root/drivers/spi/altera_spi.c
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2017-06-01dm: Rename dev_addr..() functionsSimon Glass
These support the flat device tree. We want to use the dev_read_..() prefix for functions that support both flat tree and live tree. So rename the existing functions to avoid confusion. In the end we will have: 1. dev_read_addr...() - works on devices, supports flat/live tree 2. devfdt_get_addr...() - current functions, flat tree only 3. of_get_address() etc. - new functions, live tree only All drivers will be written to use 1. That function will in turn call either 2 or 3 depending on whether the flat or live tree is in use. Note this involves changing some dead code - the imx_lpi2c.c file. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-11-18altera_spi: change ioremap to map_physmemThomas Chou
Change ioremap() to map_physmem(), as it is more used in u-boot. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Marek Vasut <marex@denx.de>
2015-11-06spi: altera_spi: minor clean upThomas Chou
- Remove the penultimate comma in of_match ids Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Jagan Teki <jteki@openedev.com>
2015-10-28spi: altera_spi: Minor cleanupJagan Teki
- Moved macro definitions to top - Give tab space to CONFIG_ALTERA_SPI_IDLE_VAL value - Re-arrange header includes ascending order Acked-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Jagan Teki <jteki@openedev.com>
2015-10-28spi: altera_spi: Use BIT macroJagan Teki
Replace numerical bit shift with BIT macro in altera_spi :%s/(1 << nr)/BIT(nr)/g where nr = 0, 1, 2 .... 31 Cc: Marek Vasut <marex@denx.de> Acked-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
2015-10-23spi : convert altera_spi to driver modelThomas Chou
Convert altera_spi to driver model Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Jagan Teki <jteki@openedev.com>
2014-10-27spi: altera: Move the config options to the topMarek Vasut
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>
2014-10-27spi: altera: Clean up the use of variable dMarek Vasut
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>
2014-10-27spi: altera: Zap endless loopMarek Vasut
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>
2014-10-27spi: altera: Clean up most checkpatch issuesMarek Vasut
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>
2014-10-27spi: altera: Clean up bit definitionsMarek Vasut
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>
2014-10-27spi: altera: Use struct-based register accessMarek Vasut
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>
2013-10-16spi: Add GPL-2.0+ SPDX-License-Identifier for missing filesJagannadha Sutradharudu Teki
Added GPL-2.0+ SPDX-License-Identifier for missed spi source files. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
2013-03-19spi: Use spi_alloc_slave() in each SPI driverSimon Glass
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>
2011-02-08altera_spi: add spi_set_speedThomas Chou
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>
2010-05-28spi: add altera spi controller supportThomas Chou
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>