linux_dsm_epyc7002/drivers/spi
Greg Ungerer df59fa7f4b spi: orion: support armada extended baud rates
The Armada SoC family implementation of this SPI hardware module has
extended the configuration register to allow for a wider range of SPI
clock rates. Specifically the Serial Baud Rate Pre-selection bits in the
SPI Interface Configuration Register now also use bits 6 and 7 as well.

Modify the baud rate calculation to handle these differences for the
Armada case. Potentially a baud rate can be setup using a number of
different pre-scalar and scalar combinations. This code tries all
possible pre-scalar divisors (8 in total) to try and find the most
accurate set.

This change introduces (and documents) a new device tree compatible
device name "armada-370-spi" to support this.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Reviewed-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-01 19:21:51 +01:00
..
Kconfig Merge remote-tracking branches 'spi/topic/sh', 'spi/topic/sh-msiof' and 'spi/topic/topcliff-pch' into spi-next 2014-08-04 17:21:16 +01:00
Makefile
spi-adi-v3.c
spi-altera.c
spi-ath79.c
spi-atmel.c
spi-au1550.c Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2014-08-07 08:47:00 -07:00
spi-bcm63xx-hsspi.c
spi-bcm63xx.c
spi-bcm2835.c
spi-bfin5xx.c
spi-bfin-sport.c
spi-bitbang-txrx.h
spi-bitbang.c
spi-butterfly.c
spi-cadence.c Merge remote-tracking branches 'spi/topic/adi-v3', 'spi/topic/atmel', 'spi/topic/cleanup' and 'spi/topic/davinci' into spi-next 2014-08-04 17:21:04 +01:00
spi-clps711x.c
spi-coldfire-qspi.c
spi-davinci.c
spi-dw-mid.c
spi-dw-mmio.c
spi-dw-pci.c
spi-dw.c
spi-dw.h
spi-efm32.c
spi-ep93xx.c
spi-falcon.c
spi-fsl-cpm.c
spi-fsl-cpm.h
spi-fsl-dspi.c
spi-fsl-espi.c
spi-fsl-lib.c
spi-fsl-lib.h
spi-fsl-spi.c
spi-fsl-spi.h
spi-gpio.c
spi-imx.c
spi-lm70llp.c
spi-mpc52xx-psc.c
spi-mpc52xx.c
spi-mpc512x-psc.c
spi-mxs.c
spi-nuc900.c
spi-oc-tiny.c
spi-octeon.c
spi-omap2-mcspi.c
spi-omap-100k.c
spi-omap-uwire.c
spi-orion.c spi: orion: support armada extended baud rates 2014-10-01 19:21:51 +01:00
spi-pl022.c
spi-ppc4xx.c
spi-pxa2xx-dma.c
spi-pxa2xx-pci.c
spi-pxa2xx-pxadma.c
spi-pxa2xx.c
spi-pxa2xx.h
spi-qup.c Merge remote-tracking branches 'spi/topic/orion', 'spi/topic/pl022', 'spi/topic/qup', 'spi/topic/rockchip' and 'spi/topic/rspi' into spi-next 2014-08-04 17:21:12 +01:00
spi-rockchip.c
spi-rspi.c
spi-s3c24xx-fiq.h
spi-s3c24xx-fiq.S
spi-s3c24xx.c
spi-s3c64xx.c ARM: SoC cleanups for 3.17 2014-08-08 11:00:26 -07:00
spi-sc18is602.c
spi-sh-hspi.c
spi-sh-msiof.c
spi-sh-sci.c
spi-sh.c
spi-sirf.c
spi-sun4i.c
spi-sun6i.c
spi-tegra20-sflash.c
spi-tegra20-slink.c
spi-tegra114.c
spi-ti-qspi.c
spi-tle62x0.c
spi-topcliff-pch.c
spi-txx9.c
spi-xcomm.c
spi-xilinx.c
spi-xtensa-xtfpga.c
spi.c spi: Updates for v3.17 2014-08-05 16:18:13 -07:00
spidev.c