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path: root/drivers/spi/xilinx_spi.c
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* spi: xilinx: Add new compatible stringsMichal Simek2015-12-11-1/+2
| | | | | | | | | Add xlnx,xps-spi-2.00.a/b which is compatible string listed in the Linux kernel. Remove origin one which has no real background. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
* spi: xilinx_spi: Use GENMASKJagan Teki2015-10-27-7/+7
| | | | | | | | Replace numeric mask hexcodes with GENMASK macro in xilinx_spi Cc: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
* spi: xilinx_spi: Use BIT macroJagan Teki2015-10-27-16/+16
| | | | | | | | | | | | Replace numerical bit shift with BIT macro in xilinx_spi :%s/(1 << nr)/BIT(nr)/g where nr = 0, 1, 2 .... 31 Cc: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
* spi: xilinx_spi: Fix to configure CPOL, CPHA maskJagan Teki2015-10-11-5/+5
| | | | | | | | | | | | | priv->mode is initialized when .set_speed triggers with mode value, so checking mode for configuring CPOL, CPHA using priv->mode is invalid hence use mode from .set_speed argument, and at the end priv->mode will initialized with mode. This patch also replaces formatting string to use speed instead of mode in .set_speed ops. Signed-off-by: Jagan Teki <jteki@openedev.com>
* spi: xilinx_spi: Add asm/io.h include fileJagan Teki2015-07-01-0/+1
| | | | | | | | | | | | | This patch includes asm/io.h for readl and writel calls. build errors: drivers/spi/xilinx_spi.c: In function 'xilinx_spi_probe': drivers/spi/xilinx_spi.c:119:2: warning: implicit declaration of function 'writel' [-Wimplicit-function-declaration] drivers/spi/xilinx_spi.c: In function 'xilinx_spi_xfer': drivers/spi/xilinx_spi.c:193:2: warning: implicit declaration of function 'readl' [-Wimplicit-function-declaration] Signed-off-by: Jagan Teki <jteki@openedev.com> Cc: Michal Simek <michal.simek@xilinx.com>
* dm: spi: xilinx_spi: Convert to driver modelJagan Teki2015-07-01-88/+112
| | | | | | | | This converts the xilinx spi driver to use the driver model. Signed-off-by: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com>
* spi: xilinx_spi: Driver clean-upJagan Teki2015-07-01-107/+57
| | | | | | | | | | | | | | - Zap unneeded macros - Re-arrange the code - Removed __attribute__((weak)) - Replace __func__ macro with func names to save macro transition. - Re-arranged comment lines. - Arrange driver code in more readable format[1] [1] http://patchwork.ozlabs.org/patch/265683/ Signed-off-by: Jagan Teki <jteki@openedev.com> Acked-by: Michal Simek <michal.simek@xilinx.com>
* spi: xilinx_spi: Move header code to driverJagan Teki2015-07-01-1/+112
| | | | | | | | Move the header code into driver for more readable and easy to access it. Signed-off-by: Jagan Teki <jteki@openedev.com> Acked-by: Michal Simek <michal.simek@xilinx.com>
* spi: xilinx: Move timeout calculation out of the loopMichal Simek2014-02-18-3/+5
| | | | | | | | Timeout calculation should be out of the data loop. This patch increase spi bandwidth for 30%. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.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>
* spi: xilinx_spi: Perform software reset during slave setupJason Wu2013-02-04-0/+2
| | | | | | to make sure it is in the clear state. Signed-off-by: Jason Wu <huanyu@xilinx.com>
* spi: xilinx: Remove unused variableStephan Linz2012-09-11-1/+0
| | | | | | | | | | Warning is: xilinx_spi.c: In function 'spi_setup_slave': xilinx_spi.c:81: warning: unused variable 'regs' Signed-off-by: Stephan Linz <linz@li-pro.net> CC: Michal Simek <monstr@monstr.eu>
* spi: microblaze: Adds driver for Xilinx SPI controllerStephan Linz2012-07-31-0/+214
This is an improved version of the driver patch original submitted by Graeme Smecher <graeme.smecher@mail.mcgill.ca> The changes are: - remove hard coded Xilinx BSP defines (XPAR_SPI_*) and use CONFIG_SYS_SPI_BASE from config.h instead - add extensive register struct definitions - remove offset calculation for register access and use the new register struct instead - move default SPI controller configuration from spi_setup_slave() to spi_claim_bus() - add spi_set_speed() - insert SPI controller deactivation in spi_release_bus() - protect while loops in spi_xfer() with counter / timeouts - support SPI mode flags: LSB_FIRST, CPHA, CPOL, LOOP Come from: http://patchwork.ozlabs.org/patch/71797/ Signed-off-by: Stephan Linz <linz@li-pro.net> Tested-by: Michal Simek <monstr@monstr.eu>
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