mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 18:37:53 +07:00
8d310c9107
Make the SIRQ polarity for Aspeed AST24xx/25xx VUART configurable via sysfs. This setting need to be changed on specific host platforms depending on the selected host interface (LPC / eSPI). The setting is configurable via sysfs rather than device-tree to stay in line with other related configurable settings. On AST2500 the VUART SIRQ polarity can be auto-configured by reading a bit from a configuration register, e.g. the LPC/eSPI interface configuration bit. Tested: Verified on TYAN S7106 mainboard. Signed-off-by: Oskar Senft <osk@google.com> Link: https://lore.kernel.org/r/20190905144130.220713-1-osk@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
25 lines
955 B
Plaintext
25 lines
955 B
Plaintext
What: /sys/bus/platform/drivers/aspeed-vuart/*/lpc_address
|
|
Date: April 2017
|
|
Contact: Jeremy Kerr <jk@ozlabs.org>
|
|
Description: Configures which IO port the host side of the UART
|
|
will appear on the host <-> BMC LPC bus.
|
|
Users: OpenBMC. Proposed changes should be mailed to
|
|
openbmc@lists.ozlabs.org
|
|
|
|
What: /sys/bus/platform/drivers/aspeed-vuart/*/sirq
|
|
Date: April 2017
|
|
Contact: Jeremy Kerr <jk@ozlabs.org>
|
|
Description: Configures which interrupt number the host side of
|
|
the UART will appear on the host <-> BMC LPC bus.
|
|
Users: OpenBMC. Proposed changes should be mailed to
|
|
openbmc@lists.ozlabs.org
|
|
|
|
What: /sys/bus/platform/drivers/aspeed-vuart/*/sirq_polarity
|
|
Date: July 2019
|
|
Contact: Oskar Senft <osk@google.com>
|
|
Description: Configures the polarity of the serial interrupt to the
|
|
host via the BMC LPC bus.
|
|
Set to 0 for active-low or 1 for active-high.
|
|
Users: OpenBMC. Proposed changes should be mailed to
|
|
openbmc@lists.ozlabs.org
|