Support the mac3 (RGMII4) as an NC-SI stack instead of an MDIO PHY.
The OCP slot #0 and OCP slot #1 use a common the BMC_NCSI signal,
so we use only one of them at the same time. The OCP slot #0 will
be enabled by PCA9539's setting by default.
Also, enable the OCP Auxiliary Power during booting.
Signed-off-by: Chanh Nguyen <[email protected]>
---
.../boot/dts/aspeed-bmc-ampere-mtmitchell.dts | 37 ++++++++++++++++++-
1 file changed, 36 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts b/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts
index 4b91600eaf62..e8a6b1f08d6a 100644
--- a/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts
@@ -251,6 +251,14 @@
pinctrl-0 = <&pinctrl_rgmii1_default>;
};
+&mac3 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_rmii4_default>;
+ clock-names = "MACCLK", "RCLK";
+ use-ncsi;
+};
+
&fmc {
status = "okay";
flash@0 {
@@ -439,6 +447,26 @@
status = "okay";
};
+&i2c8 {
+ status = "okay";
+
+ pca9539@77 {
+ compatible = "nxp,pca9539";
+ reg = <0x77>;
+ gpio-controller;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #gpio-cells = <2>;
+
+ bmc-ocp0-en-hog {
+ gpio-hog;
+ gpios = <7 GPIO_ACTIVE_LOW>;
+ output-high;
+ line-name = "bmc-ocp0-en-n";
+ };
+ };
+};
+
&i2c9 {
status = "okay";
};
@@ -530,13 +558,20 @@
/*V0-V7*/ "s0-hightemp-n","s0-fault-alert","s0-sys-auth-failure-n",
"host0-reboot-ack-n","host0-ready","host0-shd-req-n",
"host0-shd-ack-n","s0-overtemp-n",
- /*W0-W7*/ "ocp-aux-pwren","ocp-main-pwren","ocp-pgood","",
+ /*W0-W7*/ "","ocp-main-pwren","ocp-pgood","",
"bmc-ok","bmc-ready","spi0-program-sel","spi0-backup-sel",
/*X0-X7*/ "i2c-backup-sel","s1-fault-alert","s1-fw-boot-ok",
"s1-hightemp-n","s0-spi-auth-fail-n","s1-sys-auth-failure-n",
"s1-overtemp-n","s1-spi-auth-fail-n",
/*Y0-Y7*/ "","","","","","","","host0-special-boot",
/*Z0-Z7*/ "reset-button","ps0-pgood","ps1-pgood","","","","","";
+
+ ocp-aux-pwren-hog {
+ gpio-hog;
+ gpios = <ASPEED_GPIO(W, 0) GPIO_ACTIVE_HIGH>;
+ output-high;
+ line-name = "ocp-aux-pwren";
+ };
};
&gpio1 {
--
2.17.1
On 17/02/2023 11:21, Chanh Nguyen wrote:
> Support the mac3 (RGMII4) as an NC-SI stack instead of an MDIO PHY.
>
> The OCP slot #0 and OCP slot #1 use a common the BMC_NCSI signal,
> so we use only one of them at the same time. The OCP slot #0 will
> be enabled by PCA9539's setting by default.
>
> Also, enable the OCP Auxiliary Power during booting.
>
> Signed-off-by: Chanh Nguyen <[email protected]>
> ---
> .../boot/dts/aspeed-bmc-ampere-mtmitchell.dts | 37 ++++++++++++++++++-
> 1 file changed, 36 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts b/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts
> index 4b91600eaf62..e8a6b1f08d6a 100644
> --- a/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts
> +++ b/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts
> @@ -251,6 +251,14 @@
> pinctrl-0 = <&pinctrl_rgmii1_default>;
> };
>
> +&mac3 {
> + status = "okay";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_rmii4_default>;
> + clock-names = "MACCLK", "RCLK";
> + use-ncsi;
> +};
> +
> &fmc {
> status = "okay";
> flash@0 {
> @@ -439,6 +447,26 @@
> status = "okay";
> };
>
> +&i2c8 {
> + status = "okay";
> +
> + pca9539@77 {
Node names should be generic, so I believe this is "gpio".
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation
Best regards,
Krzysztof
On 17/02/2023 18:32, Krzysztof Kozlowski wrote:
> On 17/02/2023 11:21, Chanh Nguyen wrote:
>> Support the mac3 (RGMII4) as an NC-SI stack instead of an MDIO PHY.
>>
>> The OCP slot #0 and OCP slot #1 use a common the BMC_NCSI signal,
>> so we use only one of them at the same time. The OCP slot #0 will
>> be enabled by PCA9539's setting by default.
>>
>> Also, enable the OCP Auxiliary Power during booting.
>>
>> Signed-off-by: Chanh Nguyen <[email protected]>
>> ---
>> .../boot/dts/aspeed-bmc-ampere-mtmitchell.dts | 37 ++++++++++++++++++-
>> 1 file changed, 36 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts b/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts
>> index 4b91600eaf62..e8a6b1f08d6a 100644
>> --- a/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts
>> +++ b/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts
>> @@ -251,6 +251,14 @@
>> pinctrl-0 = <&pinctrl_rgmii1_default>;
>> };
>>
>> +&mac3 {
>> + status = "okay";
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_rmii4_default>;
>> + clock-names = "MACCLK", "RCLK";
>> + use-ncsi;
>> +};
>> +
>> &fmc {
>> status = "okay";
>> flash@0 {
>> @@ -439,6 +447,26 @@
>> status = "okay";
>> };
>>
>> +&i2c8 {
>> + status = "okay";
>> +
>> + pca9539@77 {
>
> Node names should be generic, so I believe this is "gpio".
> https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation
>
> Best regards,
> Krzysztof
>
Thank Krzysztof,
The PCA9539APW is a GPIO expander via I2C. For a generic name, I think
the "gpio" is suitable.