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path: root/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts (follow)
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2018-06-12fsi/fsi-master-gpio: Add "no-gpio-delays" optionBenjamin Herrenschmidt1-0/+1
This adds support for an optional device-tree property that makes the driver skip all the delays around clocking the GPIOs and set it in the device-tree of common POWER9 based OpenPower platforms. This useful on chips like the AST2500 where the GPIO block is running at a fairly low clock frequency (25Mhz typically). In this case, the delays are unnecessary and due to the low precision of the timers, actually quite harmful in terms of performance. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Christopher Bostic <cbostic@linux.vnet.ibm.com> Tested-by: Joel Stanley <joel@jms.id.au>
2018-05-25ARM: dts: aspeed: witherspoon: Set alternate bootEddie James1-0/+4
Set watchdog 2 to boot from the alternate flash chip when the watchdog timer expires and the system is reset. This enables "brick protection." Signed-off-by: Eddie James <eajames@linux.vnet.ibm.com> Signed-off-by: Joel Stanley <joel@jms.id.au>
2018-05-25ARM: dts: aspeed: witherspoon: Add gpio keys for power supply presenceChristopher Bostic1-0/+12
Signed-off-by: Christopher Bostic <cbostic@linux.vnet.ibm.com> Signed-off-by: Joel Stanley <joel@jms.id.au>
2018-05-25ARM: dts: aspeed: witherspoon: Enable checkstop and cooling gpio keysBrad Bishop1-0/+16
Enable gpio-keys events for the checkstop and water/air cooled gpios for use by applications on the Witherspoon system. Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com> Acked-by: Andrew Jeffery <andrew@aj.id.au> Signed-off-by: Joel Stanley <joel@jms.id.au>
2018-02-19ARM: dts: aspeed: Enable IPMI BT node on OpenPower machinesJoel Stanley1-0/+4
These BMC systems require this device to communicate with the host. Acked-by: Andrew Jeffery <andrew@aj.id.au> Signed-off-by: Joel Stanley <joel@jms.id.au>
2017-12-21ARM: dts: aspeed: Add Witherspoon BMC machineJoel Stanley1-0/+548
The Witherspoon BMC is an ASPEED ast2500 based BMC that is part of an OpenPower Power9 server. This adds the device tree description for most upstream components. It is a squashed commit from the OpenBMC kernel tree. Signed-off-by: Brandon Wyman <bjwyman@gmail.com> Signed-off-by: Matt Spinler <spinler@us.ibm.com> Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com> Signed-off-by: Edward A. James <eajames@us.ibm.com> Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Andrew Jeffery <andrew@aj.id.au> Reviewed-by: Brandon Wyman <bjwyman@gmail.com> Signed-off-by: Joel Stanley <joel@jms.id.au>