Hi Greg ! There are a first round of updates of the FSI stack, aiming at reducing/removing he gap with the OpenBMC tree and a first step in getting dependent drivers upstream.
These changes significantly improve the FSI bitbanging driver performance and reliability, and add the new "sbefifo" driver for communicating with the POWER9 Self Boot Engine (which will be needed for some upcoming additional drivers). These were posted to the list as patches a couple of weeks ago and were prior to that tested in the OpenBMC tree and CI. Some subsequent driver work depends on some of these, so merging early is probably the best. The following changes since commit 8efcf34a263965e471e3999904f94d1f6799d42a: Merge tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc (2018-06-11 18:19:45 -0700) are available in the Git repository at: https://git.kernel.org/pub/scm/linux/kernel/git/benh/linux-fsi.git tags/fsi-updates-2018-06-12 for you to fetch changes up to 9f4a8a2d7f9d71093f41c4bb0ef8707e8145bad3: fsi/sbefifo: Add driver for the SBE FIFO (2018-06-12 14:05:39 +1000) ---------------------------------------------------------------- FSI updates and sbefifo driver ---------------------------------------------------------------- Andrew Jeffery (2): fsi: gpio: Trace busy count fsi: gpio: Remove unused 'id' variable Benjamin Herrenschmidt (8): fsi/fsi-master-gpio: Sample input data on different clock phase fsi/fsi-master-gpio: Add "no-gpio-delays" option fsi/fsi-master-gpio: Reduce turnaround clocks fsi/fsi-master-gpio: Reduce dpoll clocks fsi/fsi-master-gpio: Delay sampling of FSI data input fsi/fsi-master-gpio: Implement CRC error recovery fsi/fsi-master-gpio: More error handling cleanup fsi/sbefifo: Add driver for the SBE FIFO Eddie James (1): fsi: scom: Remove PIB reset during probe Jeremy Kerr (4): fsi: gpio: Use a mutex to protect transfers fsi/gpio: Include command build in locked section fsi/gpio: Use relative-addressing commands fsi/master-gpio: Replace bit_bit lock with IRQ disable/enable arch/arm/boot/dts/aspeed-bmc-opp-romulus.dts | 1 + arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts | 1 + arch/arm/boot/dts/aspeed-bmc-opp-zaius.dts | 1 + drivers/fsi/Kconfig | 7 + drivers/fsi/Makefile | 1 + drivers/fsi/fsi-master-gpio.c | 349 ++++++++++++---- drivers/fsi/fsi-sbefifo.c | 1005 +++++++++++++++++++++++++++++++++++++++++++++++ drivers/fsi/fsi-scom.c | 8 - include/linux/fsi-sbefifo.h | 33 ++ include/trace/events/fsi_master_gpio.h | 43 ++ 10 files changed, 1362 insertions(+), 87 deletions(-) create mode 100644 drivers/fsi/fsi-sbefifo.c create mode 100644 include/linux/fsi-sbefifo.h
