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| author | Artem Senichev <a.senichev@yadro.com> | 2020-02-19 12:20:50 +0300 |
|---|---|---|
| committer | Brad Bishop <bradleyb@fuzziesquirrel.com> | 2020-02-20 20:06:38 +0300 |
| commit | 7f598ef5f3886ac6b773889b6bb33ec6fe741091 (patch) | |
| tree | 63270073dcaa97c3c4bfa125e05fac08a5d9a198 /meta-yadro/meta-nicole/recipes-kernel/linux/linux-aspeed/arch/arm/boot/dts/aspeed-bmc-opp-nicole.dts | |
| parent | 110bb2f806d9387213c11f2bd4b1ff24c326bdef (diff) | |
| download | openbmc-7f598ef5f3886ac6b773889b6bb33ec6fe741091.tar.xz | |
nicole: NCSI channel selector
NCSI channel number is selected depending on GPIO state of a pin
described in the device tree (gpio/nsci_cfg node).
Currently, this pin is controlled via MCU, and its state represents
Nicole's physical position inside a fabric.
Channel selector scheme:
* GPIO pin is LOW: channel 0;
* GPIO pin is HIGH: channel 1;
* invalid configuration or error: channel 0.
After changing pin's state it is necessary to reboot the BMC to apply
new channel number.
(From meta-yadro rev: 2661355417e52d968e9845298c37cae8ff1dfe6b)
Signed-off-by: Artem Senichev <a.senichev@yadro.com>
Change-Id: I8eeac34f71197fc110e41d186dd1fd4d2f1ef064
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
Diffstat (limited to 'meta-yadro/meta-nicole/recipes-kernel/linux/linux-aspeed/arch/arm/boot/dts/aspeed-bmc-opp-nicole.dts')
| -rw-r--r-- | meta-yadro/meta-nicole/recipes-kernel/linux/linux-aspeed/arch/arm/boot/dts/aspeed-bmc-opp-nicole.dts | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/meta-yadro/meta-nicole/recipes-kernel/linux/linux-aspeed/arch/arm/boot/dts/aspeed-bmc-opp-nicole.dts b/meta-yadro/meta-nicole/recipes-kernel/linux/linux-aspeed/arch/arm/boot/dts/aspeed-bmc-opp-nicole.dts index 51c8de0df..07f7d2902 100644 --- a/meta-yadro/meta-nicole/recipes-kernel/linux/linux-aspeed/arch/arm/boot/dts/aspeed-bmc-opp-nicole.dts +++ b/meta-yadro/meta-nicole/recipes-kernel/linux/linux-aspeed/arch/arm/boot/dts/aspeed-bmc-opp-nicole.dts @@ -217,6 +217,12 @@ output-low; line-name = "seq_cont"; }; + ncsi_cfg { + gpio-hog; + input; + gpios = <ASPEED_GPIO(E, 1) GPIO_ACTIVE_HIGH>; + line-name = "ncsi_cfg"; + }; }; &vuart { |