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* dm: at91: Add driver model support for the spi driverWenyou Yang2016-10-28-0/+288
| | | | | | | | | | Add driver model support while retaining the existing legacy code. This allows the driver to support boards that have converted to driver model as well as those that have not. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Stephen Warren <swarren@nvidia.com>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-17/+1
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* spi: atmel_spi: using ip version to check whether has wdrbtBo Shen2013-05-12-3/+12
| | | | | | | | | | | Using IP version to check whether it has wdrbt bit in mode register Tested in at91sam9x5ek and at91sam9n12ek. Signed-off-by: Bo Shen <voice.shen@atmel.com> [fix warning about incompatible parameter] Signed-off-by: Josh Wu <josh.wu@atmel.com> Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.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: atmel: sam9m10g45 also support WDRBT bitBo Shen2012-12-09-1/+1
| | | | | | | The at91sam9m10g45 also support WDRBT bit, add support for it Signed-off-by: Bo Shen <voice.shen@atmel.com> Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
* spi: atmel: add WDRBT bit to avoid receive overrunBo Shen2012-09-01-0/+3
| | | | | | | | | | The atmel at91sam9x5 series spi has feature to avoid receive overren Using the patch to enable it Signed-off-by: Bo Shen <voice.shen@atmel.com> Acked-by: Andreas Bießmann <andreas.devel@googlemail.com> Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
* drivers/spi/atmel_spi.c: Fix GCC 4.6 warningAnatolij Gustschin2011-11-16-2/+0
| | | | | | | | | Fix: atmel_spi.c: In function 'spi_xfer': atmel_spi.c:139:7: warning: variable 'ret' set but not used [-Wunused-but-set-variable] Signed-off-by: Anatolij Gustschin <agust@denx.de>
* ATMEL: fix related common atmel driver filesReinhard Meyer2011-05-18-8/+8
| | | | Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
* AT91/AVR32: atmel_spi.c: flush RDR before next SPI transactionReinhard Meyer2010-09-03-2/+11
| | | | Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
* atmel_spi: Driver for the Atmel SPI controllerHans-Christian Egtvedt2008-06-03-0/+210
This adds a driver for the SPI controller found on most AT91 and AVR32 chips, implementing the new SPI API. Changed in v4: - Update to new API - Handle zero-length transfers appropriately. The user may send a zero-length SPI transfer with SPI_XFER_END set in order to deactivate the chip select after a series of transfers with chip select active. This is useful e.g. when polling the status register of DataFlash. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
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