From: Ondrej Jirman <[email protected]>
This series implements support for Xunlong Orange Pi 3 board. There
are only a few patches remaining.
- ethernet support - just a DT change (patch 1)
- HDMI support (patches 2-4)
For some people, ethernet doesn't work after reboot because u-boot doesn't
support AXP805 PMIC, and will not turn off the etherent PHY regulators.
So the regulator controlled by gpio will be shut down, but the other one
controlled by the AXP PMIC will not.
This is a problem only when running with a builtin driver. This needs
to be fixed in u-boot.
Please take a look.
thank you and regards,
Ondrej Jirman
Changes in v8:
- added reviewed-by tags
- dropped already applied patches
- added more info about the phy initialization issue after reset
Changes in v7:
- dropped stored reference to connector_pdev as suggested by Jernej
- added forgotten dt-bindings reviewed-by tag
Changes in v6:
- added dt-bindings reviewed-by tag
- fix wording in stmmac commit (as suggested by Sergei)
Changes in v5:
- dropped already applied patches (pinctrl patches, mmc1 pinconf patch)
- rename GMAC-3V3 -> GMAC-3V to match the schematic (Jagan)
- changed hdmi-connector's ddc-supply property to ddc-en-gpios
(Rob Herring)
Changes in v4:
- fix checkpatch warnings/style issues
- use enum in struct sunxi_desc_function for io_bias_cfg_variant
- collected acked-by's
- fix compile error in drivers/pinctrl/sunxi/pinctrl-sun9i-a80-r.c:156
caused by missing conversion from has_io_bias_cfg struct member
(I've kept the acked-by, because it's a trivial change, but feel free
to object.) (reported by Martin A. on github)
I did not have A80 pinctrl enabled for some reason, so I did not catch
this sooner.
- dropped brcm firmware patch (was already applied)
- dropped the wifi dts patch (will re-send after H6 RTC gets merged,
along with bluetooth support, in a separate series)
Changes in v3:
- dropped already applied patches
- changed pinctrl I/O bias selection constants to enum and renamed
- added /omit-if-no-ref/ to mmc1_pins
- made mmc1_pins default pinconf for mmc1 in H6 dtsi
- move ddc-supply to HDMI connector node, updated patch descriptions,
changed dt-bindings docs
Changes in v2:
- added dt-bindings documentation for the board's compatible string
(suggested by Clement)
- addressed checkpatch warnings and code formatting issues (on Maxime's
suggestions)
- stmmac: dropped useless parenthesis, reworded description of the patch
(suggested by Sergei)
- drop useles dev_info() about the selected io bias voltage
- docummented io voltage bias selection variant macros
- wifi: marked WiFi DTS patch and realted mmc1_pins as "DO NOT MERGE",
because wifi depends on H6 RTC support that's not merged yet (suggested
by Clement)
- added missing signed-of-bys
- changed &usb2otg dr_mode to otg, and added a note about VBUS
- improved wording of HDMI driver's DDC power supply patch
Ondrej Jirman (4):
arm64: dts: allwinner: orange-pi-3: Enable ethernet
dt-bindings: display: hdmi-connector: Support DDC bus enable
drm: sun4i: Add support for enabling DDC I2C bus to sun8i_dw_hdmi glue
arm64: dts: allwinner: orange-pi-3: Enable HDMI output
.../display/connector/hdmi-connector.txt | 1 +
.../dts/allwinner/sun50i-h6-orangepi-3.dts | 70 +++++++++++++++++++
drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c | 54 ++++++++++++--
drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h | 2 +
4 files changed, 123 insertions(+), 4 deletions(-)
--
2.22.0
From: Ondrej Jirman <[email protected]>
Orange Pi 3 has two regulators that power the Realtek RTL8211E. According
to the phy datasheet, both regulators need to be enabled at the same time,
but we can only specify a single phy-supply in the DT.
This can be achieved by making one regulator depedning on the other via
vin-supply. While it's not a technically correct description of the
hardware, it achieves the purpose.
All values of RX/TX delay were tested exhaustively and a middle one of the
working values was chosen.
Signed-off-by: Ondrej Jirman <[email protected]>
---
.../dts/allwinner/sun50i-h6-orangepi-3.dts | 44 +++++++++++++++++++
1 file changed, 44 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
index 17d496990108..2c6807b74ff6 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
@@ -15,6 +15,7 @@
aliases {
serial0 = &uart0;
+ ethernet0 = &emac;
};
chosen {
@@ -44,6 +45,27 @@
regulator-max-microvolt = <5000000>;
regulator-always-on;
};
+
+ /*
+ * The board uses 2.5V RGMII signalling. Power sequence to enable
+ * the phy is to enable GMAC-2V5 and GMAC-3V (aldo2) power rails
+ * at the same time and to wait 100ms.
+ */
+ reg_gmac_2v5: gmac-2v5 {
+ compatible = "regulator-fixed";
+ regulator-name = "gmac-2v5";
+ regulator-min-microvolt = <2500000>;
+ regulator-max-microvolt = <2500000>;
+ startup-delay-us = <100000>;
+ enable-active-high;
+ gpio = <&pio 3 6 GPIO_ACTIVE_HIGH>; /* PD6 */
+
+ /* The real parent of gmac-2v5 is reg_vcc5v, but we need to
+ * enable two regulators to power the phy. This is one way
+ * to achieve that.
+ */
+ vin-supply = <®_aldo2>; /* GMAC-3V */
+ };
};
&cpu0 {
@@ -58,6 +80,28 @@
status = "okay";
};
+&emac {
+ pinctrl-names = "default";
+ pinctrl-0 = <&ext_rgmii_pins>;
+ phy-mode = "rgmii";
+ phy-handle = <&ext_rgmii_phy>;
+ phy-supply = <®_gmac_2v5>;
+ allwinner,rx-delay-ps = <1500>;
+ allwinner,tx-delay-ps = <700>;
+ status = "okay";
+};
+
+&mdio {
+ ext_rgmii_phy: ethernet-phy@1 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <1>;
+
+ reset-gpios = <&pio 3 14 GPIO_ACTIVE_LOW>; /* PD14 */
+ reset-assert-us = <15000>;
+ reset-deassert-us = <40000>;
+ };
+};
+
&mmc0 {
vmmc-supply = <®_cldo1>;
cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>; /* PF6 */
--
2.22.0
From: Ondrej Jirman <[email protected]>
Orange Pi 3 has a DDC_CEC_EN signal connected to PH2, that enables the DDC
I2C bus voltage shifter. Before EDID can be read, we need to pull PH2 high.
This is realized by the ddc-en-gpios property.
Signed-off-by: Ondrej Jirman <[email protected]>
---
.../dts/allwinner/sun50i-h6-orangepi-3.dts | 26 +++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
index 2c6807b74ff6..01bb1bafe284 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
@@ -22,6 +22,18 @@
stdout-path = "serial0:115200n8";
};
+ connector {
+ compatible = "hdmi-connector";
+ ddc-en-gpios = <&pio 7 2 GPIO_ACTIVE_HIGH>; /* PH2 */
+ type = "a";
+
+ port {
+ hdmi_con_in: endpoint {
+ remote-endpoint = <&hdmi_out_con>;
+ };
+ };
+ };
+
leds {
compatible = "gpio-leds";
@@ -72,6 +84,10 @@
cpu-supply = <®_dcdca>;
};
+&de {
+ status = "okay";
+};
+
&ehci0 {
status = "okay";
};
@@ -91,6 +107,16 @@
status = "okay";
};
+&hdmi {
+ status = "okay";
+};
+
+&hdmi_out {
+ hdmi_out_con: endpoint {
+ remote-endpoint = <&hdmi_con_in>;
+ };
+};
+
&mdio {
ext_rgmii_phy: ethernet-phy@1 {
compatible = "ethernet-phy-ieee802.3-c22";
--
2.22.0
On Tue, 6 Aug 2019 at 17:57, <[email protected]> wrote:
>
> From: Ondrej Jirman <[email protected]>
>
> Orange Pi 3 has a DDC_CEC_EN signal connected to PH2, that enables the DDC
> I2C bus voltage shifter. Before EDID can be read, we need to pull PH2 high.
> This is realized by the ddc-en-gpios property.
Great work. Is there any chance you can move this to the
arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi?, as all the H6
based orange-pi's have this feature.
BR,
CK
>
> Signed-off-by: Ondrej Jirman <[email protected]>
> ---
> .../dts/allwinner/sun50i-h6-orangepi-3.dts | 26 +++++++++++++++++++
> 1 file changed, 26 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
> index 2c6807b74ff6..01bb1bafe284 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
> @@ -22,6 +22,18 @@
> stdout-path = "serial0:115200n8";
> };
>
> + connector {
> + compatible = "hdmi-connector";
> + ddc-en-gpios = <&pio 7 2 GPIO_ACTIVE_HIGH>; /* PH2 */
> + type = "a";
> +
> + port {
> + hdmi_con_in: endpoint {
> + remote-endpoint = <&hdmi_out_con>;
> + };
> + };
> + };
> +
> leds {
> compatible = "gpio-leds";
>
> @@ -72,6 +84,10 @@
> cpu-supply = <®_dcdca>;
> };
>
> +&de {
> + status = "okay";
> +};
> +
> &ehci0 {
> status = "okay";
> };
> @@ -91,6 +107,16 @@
> status = "okay";
> };
>
> +&hdmi {
> + status = "okay";
> +};
> +
> +&hdmi_out {
> + hdmi_out_con: endpoint {
> + remote-endpoint = <&hdmi_con_in>;
> + };
> +};
> +
> &mdio {
> ext_rgmii_phy: ethernet-phy@1 {
> compatible = "ethernet-phy-ieee802.3-c22";
> --
> 2.22.0
>
> --
> You received this message because you are subscribed to the Google Groups "linux-sunxi" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to [email protected].
> To view this discussion on the web, visit https://groups.google.com/d/msgid/linux-sunxi/20190806155744.10263-5-megous%40megous.com.
On Fri, Aug 09, 2019 at 10:25:32AM +0200, Code Kipper wrote:
> On Tue, 6 Aug 2019 at 17:57, <[email protected]> wrote:
> >
> > From: Ondrej Jirman <[email protected]>
> >
> > Orange Pi 3 has a DDC_CEC_EN signal connected to PH2, that enables the DDC
> > I2C bus voltage shifter. Before EDID can be read, we need to pull PH2 high.
> > This is realized by the ddc-en-gpios property.
> Great work. Is there any chance you can move this to the
> arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi?, as all the H6
> based orange-pi's have this feature.
I plan to do that as a followup patch, once this is merged.
regards,
o.
> BR,
> CK
> >
> > Signed-off-by: Ondrej Jirman <[email protected]>
> > ---
> > .../dts/allwinner/sun50i-h6-orangepi-3.dts | 26 +++++++++++++++++++
> > 1 file changed, 26 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
> > index 2c6807b74ff6..01bb1bafe284 100644
> > --- a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
> > +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
> > @@ -22,6 +22,18 @@
> > stdout-path = "serial0:115200n8";
> > };
> >
> > + connector {
> > + compatible = "hdmi-connector";
> > + ddc-en-gpios = <&pio 7 2 GPIO_ACTIVE_HIGH>; /* PH2 */
> > + type = "a";
> > +
> > + port {
> > + hdmi_con_in: endpoint {
> > + remote-endpoint = <&hdmi_out_con>;
> > + };
> > + };
> > + };
> > +
> > leds {
> > compatible = "gpio-leds";
> >
> > @@ -72,6 +84,10 @@
> > cpu-supply = <®_dcdca>;
> > };
> >
> > +&de {
> > + status = "okay";
> > +};
> > +
> > &ehci0 {
> > status = "okay";
> > };
> > @@ -91,6 +107,16 @@
> > status = "okay";
> > };
> >
> > +&hdmi {
> > + status = "okay";
> > +};
> > +
> > +&hdmi_out {
> > + hdmi_out_con: endpoint {
> > + remote-endpoint = <&hdmi_con_in>;
> > + };
> > +};
> > +
> > &mdio {
> > ext_rgmii_phy: ethernet-phy@1 {
> > compatible = "ethernet-phy-ieee802.3-c22";
> > --
> > 2.22.0
> >
> > --
> > You received this message because you are subscribed to the Google Groups "linux-sunxi" group.
> > To unsubscribe from this group and stop receiving emails from it, send an email to [email protected].
> > To view this discussion on the web, visit https://groups.google.com/d/msgid/linux-sunxi/20190806155744.10263-5-megous%40megous.com.
Dne torek, 06. avgust 2019 ob 17:57:39 CEST je [email protected] napisal(a):
> From: Ondrej Jirman <[email protected]>
>
> This series implements support for Xunlong Orange Pi 3 board. There
> are only a few patches remaining.
>
> - ethernet support - just a DT change (patch 1)
> - HDMI support (patches 2-4)
>
> For some people, ethernet doesn't work after reboot because u-boot doesn't
> support AXP805 PMIC, and will not turn off the etherent PHY regulators.
> So the regulator controlled by gpio will be shut down, but the other one
> controlled by the AXP PMIC will not.
>
> This is a problem only when running with a builtin driver. This needs
> to be fixed in u-boot.
>
>
> Please take a look.
Is there anything missing? It would be nice to get this in 5.4. There is a lot
of H6 boards which needs DDC bus enable mechanism (part of H6 reference
design), including Beelink GS1 which already has HDMI node in mainline kernel
DT, but due to disabled DDC lines works only with 1024x768 (fallback
resolution in DRM core).
Best regards,
Jernej
>
> thank you and regards,
> Ondrej Jirman
>
> Changes in v8:
> - added reviewed-by tags
> - dropped already applied patches
> - added more info about the phy initialization issue after reset
>
> Changes in v7:
> - dropped stored reference to connector_pdev as suggested by Jernej
> - added forgotten dt-bindings reviewed-by tag
>
> Changes in v6:
> - added dt-bindings reviewed-by tag
> - fix wording in stmmac commit (as suggested by Sergei)
>
> Changes in v5:
> - dropped already applied patches (pinctrl patches, mmc1 pinconf patch)
> - rename GMAC-3V3 -> GMAC-3V to match the schematic (Jagan)
> - changed hdmi-connector's ddc-supply property to ddc-en-gpios
> (Rob Herring)
>
> Changes in v4:
> - fix checkpatch warnings/style issues
> - use enum in struct sunxi_desc_function for io_bias_cfg_variant
> - collected acked-by's
> - fix compile error in drivers/pinctrl/sunxi/pinctrl-sun9i-a80-r.c:156
> caused by missing conversion from has_io_bias_cfg struct member
> (I've kept the acked-by, because it's a trivial change, but feel free
> to object.) (reported by Martin A. on github)
> I did not have A80 pinctrl enabled for some reason, so I did not catch
> this sooner.
> - dropped brcm firmware patch (was already applied)
> - dropped the wifi dts patch (will re-send after H6 RTC gets merged,
> along with bluetooth support, in a separate series)
>
> Changes in v3:
> - dropped already applied patches
> - changed pinctrl I/O bias selection constants to enum and renamed
> - added /omit-if-no-ref/ to mmc1_pins
> - made mmc1_pins default pinconf for mmc1 in H6 dtsi
> - move ddc-supply to HDMI connector node, updated patch descriptions,
> changed dt-bindings docs
>
> Changes in v2:
> - added dt-bindings documentation for the board's compatible string
> (suggested by Clement)
> - addressed checkpatch warnings and code formatting issues (on Maxime's
> suggestions)
> - stmmac: dropped useless parenthesis, reworded description of the patch
> (suggested by Sergei)
> - drop useles dev_info() about the selected io bias voltage
> - docummented io voltage bias selection variant macros
> - wifi: marked WiFi DTS patch and realted mmc1_pins as "DO NOT MERGE",
> because wifi depends on H6 RTC support that's not merged yet (suggested
> by Clement)
> - added missing signed-of-bys
> - changed &usb2otg dr_mode to otg, and added a note about VBUS
> - improved wording of HDMI driver's DDC power supply patch
>
> Ondrej Jirman (4):
> arm64: dts: allwinner: orange-pi-3: Enable ethernet
> dt-bindings: display: hdmi-connector: Support DDC bus enable
> drm: sun4i: Add support for enabling DDC I2C bus to sun8i_dw_hdmi glue
> arm64: dts: allwinner: orange-pi-3: Enable HDMI output
>
> .../display/connector/hdmi-connector.txt | 1 +
> .../dts/allwinner/sun50i-h6-orangepi-3.dts | 70 +++++++++++++++++++
> drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c | 54 ++++++++++++--
> drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h | 2 +
> 4 files changed, 123 insertions(+), 4 deletions(-)
On Mon, Aug 12, 2019 at 3:45 PM Jernej Škrabec <[email protected]> wrote:
>
> Dne torek, 06. avgust 2019 ob 17:57:39 CEST je [email protected] napisal(a):
> > From: Ondrej Jirman <[email protected]>
> >
> > This series implements support for Xunlong Orange Pi 3 board. There
> > are only a few patches remaining.
> >
> > - ethernet support - just a DT change (patch 1)
> > - HDMI support (patches 2-4)
> >
> > For some people, ethernet doesn't work after reboot because u-boot doesn't
> > support AXP805 PMIC, and will not turn off the etherent PHY regulators.
> > So the regulator controlled by gpio will be shut down, but the other one
> > controlled by the AXP PMIC will not.
> >
> > This is a problem only when running with a builtin driver. This needs
> > to be fixed in u-boot.
> >
> >
> > Please take a look.
>
> Is there anything missing? It would be nice to get this in 5.4. There is a lot
> of H6 boards which needs DDC bus enable mechanism (part of H6 reference
> design), including Beelink GS1 which already has HDMI node in mainline kernel
> DT, but due to disabled DDC lines works only with 1024x768 (fallback
> resolution in DRM core).
I have a few minor comments about patch 1.
I think the HDMI bits are good, but I don't have maintainership / commit
permissions for drm-misc, so I'll have to wait until someone applies patches
2 and 3 before I apply patch 4.
ChenYu
> Best regards,
> Jernej
>
> >
> > thank you and regards,
> > Ondrej Jirman
> >
> > Changes in v8:
> > - added reviewed-by tags
> > - dropped already applied patches
> > - added more info about the phy initialization issue after reset
> >
> > Changes in v7:
> > - dropped stored reference to connector_pdev as suggested by Jernej
> > - added forgotten dt-bindings reviewed-by tag
> >
> > Changes in v6:
> > - added dt-bindings reviewed-by tag
> > - fix wording in stmmac commit (as suggested by Sergei)
> >
> > Changes in v5:
> > - dropped already applied patches (pinctrl patches, mmc1 pinconf patch)
> > - rename GMAC-3V3 -> GMAC-3V to match the schematic (Jagan)
> > - changed hdmi-connector's ddc-supply property to ddc-en-gpios
> > (Rob Herring)
> >
> > Changes in v4:
> > - fix checkpatch warnings/style issues
> > - use enum in struct sunxi_desc_function for io_bias_cfg_variant
> > - collected acked-by's
> > - fix compile error in drivers/pinctrl/sunxi/pinctrl-sun9i-a80-r.c:156
> > caused by missing conversion from has_io_bias_cfg struct member
> > (I've kept the acked-by, because it's a trivial change, but feel free
> > to object.) (reported by Martin A. on github)
> > I did not have A80 pinctrl enabled for some reason, so I did not catch
> > this sooner.
> > - dropped brcm firmware patch (was already applied)
> > - dropped the wifi dts patch (will re-send after H6 RTC gets merged,
> > along with bluetooth support, in a separate series)
> >
> > Changes in v3:
> > - dropped already applied patches
> > - changed pinctrl I/O bias selection constants to enum and renamed
> > - added /omit-if-no-ref/ to mmc1_pins
> > - made mmc1_pins default pinconf for mmc1 in H6 dtsi
> > - move ddc-supply to HDMI connector node, updated patch descriptions,
> > changed dt-bindings docs
> >
> > Changes in v2:
> > - added dt-bindings documentation for the board's compatible string
> > (suggested by Clement)
> > - addressed checkpatch warnings and code formatting issues (on Maxime's
> > suggestions)
> > - stmmac: dropped useless parenthesis, reworded description of the patch
> > (suggested by Sergei)
> > - drop useles dev_info() about the selected io bias voltage
> > - docummented io voltage bias selection variant macros
> > - wifi: marked WiFi DTS patch and realted mmc1_pins as "DO NOT MERGE",
> > because wifi depends on H6 RTC support that's not merged yet (suggested
> > by Clement)
> > - added missing signed-of-bys
> > - changed &usb2otg dr_mode to otg, and added a note about VBUS
> > - improved wording of HDMI driver's DDC power supply patch
> >
> > Ondrej Jirman (4):
> > arm64: dts: allwinner: orange-pi-3: Enable ethernet
> > dt-bindings: display: hdmi-connector: Support DDC bus enable
> > drm: sun4i: Add support for enabling DDC I2C bus to sun8i_dw_hdmi glue
> > arm64: dts: allwinner: orange-pi-3: Enable HDMI output
> >
> > .../display/connector/hdmi-connector.txt | 1 +
> > .../dts/allwinner/sun50i-h6-orangepi-3.dts | 70 +++++++++++++++++++
> > drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c | 54 ++++++++++++--
> > drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h | 2 +
> > 4 files changed, 123 insertions(+), 4 deletions(-)
>
>
>
>
> --
> You received this message because you are subscribed to the Google Groups "linux-sunxi" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to [email protected].
> To view this discussion on the web, visit https://groups.google.com/d/msgid/linux-sunxi/2218280.0sI6yjypBf%40jernej-laptop.
On Mon, Aug 12, 2019 at 03:54:03PM +0800, Chen-Yu Tsai wrote:
> On Mon, Aug 12, 2019 at 3:45 PM Jernej Škrabec <[email protected]> wrote:
> >
> > Dne torek, 06. avgust 2019 ob 17:57:39 CEST je [email protected] napisal(a):
> > > From: Ondrej Jirman <[email protected]>
> > >
> > > This series implements support for Xunlong Orange Pi 3 board. There
> > > are only a few patches remaining.
> > >
> > > - ethernet support - just a DT change (patch 1)
> > > - HDMI support (patches 2-4)
> > >
> > > For some people, ethernet doesn't work after reboot because u-boot doesn't
> > > support AXP805 PMIC, and will not turn off the etherent PHY regulators.
> > > So the regulator controlled by gpio will be shut down, but the other one
> > > controlled by the AXP PMIC will not.
> > >
> > > This is a problem only when running with a builtin driver. This needs
> > > to be fixed in u-boot.
> > >
> > >
> > > Please take a look.
> >
> > Is there anything missing? It would be nice to get this in 5.4. There is a lot
> > of H6 boards which needs DDC bus enable mechanism (part of H6 reference
> > design), including Beelink GS1 which already has HDMI node in mainline kernel
> > DT, but due to disabled DDC lines works only with 1024x768 (fallback
> > resolution in DRM core).
>
> I have a few minor comments about patch 1.
>
> I think the HDMI bits are good, but I don't have maintainership / commit
> permissions for drm-misc, so I'll have to wait until someone applies patches
> 2 and 3 before I apply patch 4.
I've applied 2,3 and 4
Thanks!
Maxime
--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
On Tue, Aug 6, 2019 at 11:57 PM <[email protected]> wrote:
>
> From: Ondrej Jirman <[email protected]>
>
> Orange Pi 3 has two regulators that power the Realtek RTL8211E. According
> to the phy datasheet, both regulators need to be enabled at the same time,
> but we can only specify a single phy-supply in the DT.
>
> This can be achieved by making one regulator depedning on the other via
> vin-supply. While it's not a technically correct description of the
> hardware, it achieves the purpose.
>
> All values of RX/TX delay were tested exhaustively and a middle one of the
> working values was chosen.
>
> Signed-off-by: Ondrej Jirman <[email protected]>
> ---
> .../dts/allwinner/sun50i-h6-orangepi-3.dts | 44 +++++++++++++++++++
> 1 file changed, 44 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
> index 17d496990108..2c6807b74ff6 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
> @@ -15,6 +15,7 @@
>
> aliases {
> serial0 = &uart0;
> + ethernet0 = &emac;
> };
>
> chosen {
> @@ -44,6 +45,27 @@
> regulator-max-microvolt = <5000000>;
> regulator-always-on;
> };
> +
> + /*
> + * The board uses 2.5V RGMII signalling. Power sequence to enable
> + * the phy is to enable GMAC-2V5 and GMAC-3V (aldo2) power rails
> + * at the same time and to wait 100ms.
> + */
> + reg_gmac_2v5: gmac-2v5 {
> + compatible = "regulator-fixed";
> + regulator-name = "gmac-2v5";
> + regulator-min-microvolt = <2500000>;
> + regulator-max-microvolt = <2500000>;
> + startup-delay-us = <100000>;
> + enable-active-high;
> + gpio = <&pio 3 6 GPIO_ACTIVE_HIGH>; /* PD6 */
> +
> + /* The real parent of gmac-2v5 is reg_vcc5v, but we need to
> + * enable two regulators to power the phy. This is one way
> + * to achieve that.
> + */
> + vin-supply = <®_aldo2>; /* GMAC-3V */
> + };
The RTL8211E datasheet I have says:
2.5V (or 1.8/1.5V) RGMII power should be risen simultaneously or slightly
earlier than 3.3V power. Rising 2.5V (or 1.8/1.5V) power later than 3.3V
power may lead to errors.
Since you can't reverse the parent relationship in your patch, maybe it's
time to add a phy-io-supply property?
It also says the rise time for 3.3V must be between 1ms and 100ms. However
the PMIC doesn't support voltage ramp control for the LDOs, nor does it list
the ramp rate.
ChenYu
> };
>
> &cpu0 {
> @@ -58,6 +80,28 @@
> status = "okay";
> };
>
> +&emac {
> + pinctrl-names = "default";
> + pinctrl-0 = <&ext_rgmii_pins>;
> + phy-mode = "rgmii";
> + phy-handle = <&ext_rgmii_phy>;
> + phy-supply = <®_gmac_2v5>;
> + allwinner,rx-delay-ps = <1500>;
> + allwinner,tx-delay-ps = <700>;
> + status = "okay";
> +};
> +
> +&mdio {
> + ext_rgmii_phy: ethernet-phy@1 {
> + compatible = "ethernet-phy-ieee802.3-c22";
> + reg = <1>;
> +
> + reset-gpios = <&pio 3 14 GPIO_ACTIVE_LOW>; /* PD14 */
> + reset-assert-us = <15000>;
> + reset-deassert-us = <40000>;
> + };
> +};
> +
> &mmc0 {
> vmmc-supply = <®_cldo1>;
> cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>; /* PF6 */
> --
> 2.22.0
>
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