u-boot.git/drivers/spi, branch v2018.03-rc2

atcspi200: avoid possible NULL dereference

2018-02-08T03:06:18Z

Check if ns before and not after dereferencing it. Indicated by cppcheck. Signed-off-by: Heinrich Schuchardt

Merge git://git.denx.de/u-boot-spi

2018-01-26T12:46:34Z

DW SPI: Get clock value from Device Tree

2018-01-26T05:56:16Z

Add option to set spi controller clock frequency via device tree using standard clock bindings. Define dw_spi_get_clk function as 'weak' as some targets (like SOCFPGA_GEN5 and SOCFPGA_ARRIA10) don't use standard clock API and implement dw_spi_get_clk their own way in their clock manager. Get rid of clock_manager.h include as we don't use cm_get_spi_controller_clk_hz function anymore. (we use redefined dw_spi_get_clk in SOCFPGA clock managers instead) Reviewed-by: Marek Vasut Signed-off-by: Eugeniy Paltsev Reviewed-by: Jagan Teki

spi: cadence_qspi_apb: Make flash writes 32 bit aligned

2018-01-24T06:41:36Z

Make flash writes 32 bit aligned by using bounce buffers to deal with non 32 bit aligned buffers. This is required because as per TI K2G TRM[1], the external master is only permitted to issue 32-bit data interface writes until the last word of an indirect transfer. Otherwise indirect writes is known to fail sometimes. [1] http://www.ti.com/lit/ug/spruhy8g/spruhy8g.pdf Signed-off-by: Vignesh R Acked-by: Marek Vasut Acked-by: Simon Goldschmidt Reviewed-by: Jason Rush Acked-by: Jason Rush Reviewed-by: Jagan Teki

Revert "spi: cadence_qspi_apb: Use 32 bit indirect write transaction when possible"

2018-01-24T06:41:36Z

This reverts commit 57897c13de03ac0136d64641a3eab526c6810387. Using bounce_buf.c to handle non-DMA alignment problems is bad as bounce_buf.c does cache manipulations which is not required. Therefore revert this patch in favour of local bounce buffer solution in the next patch. Signed-off-by: Vignesh R Acked-by: Marek Vasut Acked-by: Simon Goldschmidt Reviewed-by: Jason Rush Acked-by: Jason Rush Reviewed-by: Jagan Teki

Revert "spi: cadence_qspi_apb: Use 32 bit indirect read transaction when possible"

2018-01-24T06:41:36Z

This reverts commit b63b46313ed29e9b0c36b3d6b9407f6eade40c8f. This commit changed cadence_qspi_apb to use bouncebuf.c, which invalidates the data cache after reading. This is meant for dma transfers only and breaks the cadence_qspi driver which copies via cpu only: data that is copied by the cpu is in cache only and the cache invalidation at the end throws away this data. Signed-off-by: Simon Goldschmidt Signed-off-by: Vignesh R Acked-by: Marek Vasut Reviewed-by: Jason Rush Acked-by: Jason Rush Reviewed-by: Jagan Teki

spi: cadence_spi: Sync DT bindings with Linux

2018-01-24T06:37:50Z

Adopt the Linux DT bindings. This also fixes an issue with the indaddrtrig register on the Cadence QSPI device being programmed with the wrong value for the socfpga arch. Tested on TI K2G platform: Tested-by: Vignesh R Tested on a socfpga-cyclonev board: Tested-by: Simon Goldschmidt Signed-off-by: Jason Rush Reviewed-by: Jagan Teki Acked-by: Simon Goldschmidt Acked-by: Marek Vasut

spi: kirkwood_spi: implement workaround for FE-9144572

2018-01-24T06:34:08Z

Erratum NO. FE-9144572: The device SPI interface supports frequencies of up to 50 MHz. However, due to this erratum, when the device core clock is 250 MHz and the SPI interfaces is configured for 50MHz SPI clock and CPOL=CPHA=1 there might occur data corruption on reads from the SPI device. Implement the workaround by setting the TMISO_SAMPLE value to 0x2 in the timing1 register. Signed-off-by: Chris Packham Reviewed-by: Stefan Roese Reviewed-by: Jagan Teki

spi: spi-uclass: Fix style violations

2018-01-24T06:34:08Z

Remove a superfluous newline, and reduce the scope of a variable. Reviewed-by: Simon Glass Reviewed-by: Jagan Teki Signed-off-by: Mario Six

spi: Remove spi_setup_slave_fdt

2018-01-24T06:34:07Z

A previous patch removed the spi_flash_probe_fdt function, which contained the last call of the spi_setup_slave_fdt function, which is now equally obsolete. This patch removes the function. Reviewed-by: Simon Glass Reviewed-by: Jagan Teki Signed-off-by: Mario Six