domenico/openwrt_NSS_ACW
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

sunxi: add support for H6 boards and OrangePiOnePlus

Browse Source 
Specifications:

SoC	Allwinner H6 @ 1.8 Ghz
DRAM	1Gb LPDDR3
Power	DC 5V @ 3A
Video	HDMI (Type 2.0A - full)
Audio	HDMI, on-board microphone
Network	10/100/1000Mbps Ethernet (Realtek RTL8211)
Storage	microSD
USB	1 USB2.0 Host, 1 USB2.0 OTG
Debug	Serial UART

Flashing instructions:
 Standard sunxi SD card installation procedure - copy image to SD card,
 insert into SD card slot on the device and boot.

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
This commit is contained in:
Zoltan HERPAI
2020-04-24 09:58:53 +02:00
parent c2163530db
commit 3225241c2b
8 changed files with 531 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
package/boot/arm-trusted-firmware-sunxi/Makefile
View File

@@ -37,6 +37,11 @@ define Package/arm-trusted-firmware-sunxi-a64
VARIANT:=sun50i_a64
endef
define Package/arm-trusted-firmware-sunxi-h6
$(call Package/arm-trusted-firmware-sunxi/Default)
VARIANT:=sun50i_h6
endef
export GCC_HONOUR_COPTS=s
MAKE_VARS = \
@@ -55,3 +60,4 @@ define Package/arm-trusted-firmware-sunxi/install
endef
$(eval $(call BuildPackage,arm-trusted-firmware-sunxi-a64))
$(eval $(call BuildPackage,arm-trusted-firmware-sunxi-h6))

10
package/boot/uboot-sunxi/Makefile
View File

@@ -204,6 +204,15 @@ define U-Boot/orangepi_one
BUILD_DEVICES:=xunlong_orangepi-one
endef
define U-Boot/orangepi_one_plus
BUILD_SUBTARGET:=cortexa53
NAME:=Orange Pi One Plus (H6)
DEPENDS:=+PACKAGE_u-boot-orangepi_one_plus:arm-trusted-firmware-sunxi-h6
BUILD_DEVICES:=xunlong_orangepi-one-plus
UENV:=h6
ATF:=h6
endef
define U-Boot/orangepi_pc
BUILD_SUBTARGET:=cortexa7
NAME:=Orange Pi PC (H3)
@@ -344,6 +353,7 @@ UBOOT_TARGETS := \
orangepi_zero \
orangepi_r1 \
orangepi_one \
orangepi_one_plus \
orangepi_pc \
orangepi_pc_plus \
orangepi_plus \

7
package/boot/uboot-sunxi/uEnv-h6.txt Normal file
View File

@@ -0,0 +1,7 @@
setenv mmc_rootpart 2
part uuid mmc ${mmc_bootdev}:${mmc_rootpart} uuid
setenv loadkernel fatload mmc \$mmc_bootdev \$kernel_addr_r uImage
setenv loaddtb fatload mmc \$mmc_bootdev \$fdt_addr_r dtb
setenv bootargs console=ttyS0,115200 earlyprintk root=PARTUUID=${uuid} rootwait
setenv uenvcmd run loadkernel \&\& run loaddtb \&\& booti \$kernel_addr_r - \$fdt_addr_r
run uenvcmd

17
target/linux/sunxi/image/cortexa53.mk
View File

@@ -9,13 +9,18 @@ define Device/sun50i
KERNEL := kernel-bin
endef
define Device/sun50i-a64
SOC := sun50i-a64
$(Device/sun50i)
endef
define Device/sun50i-h5
SOC := sun50i-h5
$(Device/sun50i)
endef
define Device/sun50i-a64
SOC := sun50i-a64
define Device/sun50i-h6
SOC := sun50i-h6
$(Device/sun50i)
endef
@@ -79,6 +84,14 @@ define Device/pine64_sopine-baseboard
endef
TARGET_DEVICES += pine64_sopine-baseboard
define Device/xunlong_orangepi-one-plus
$(Device/sun50i-h6)
DEVICE_VENDOR := Xunlong
DEVICE_MODEL := Orange Pi One Plus
SUNXI_DTS_DIR := allwinner/
endef
TARGET_DEVICES += xunlong_orangepi-one-plus
define Device/xunlong_orangepi-pc2
DEVICE_VENDOR := Xunlong
DEVICE_MODEL := Orange Pi PC 2

400
target/linux/sunxi/patches-5.4/440-add-h6-pwm.patch Normal file
View File

@@ -0,0 +1,400 @@
diff --git a/drivers/pwm/pwm-sun4i.c b/drivers/pwm/pwm-sun4i.c
index 581d23287333..487899d4cc3f 100644
--- a/drivers/pwm/pwm-sun4i.c
+++ b/drivers/pwm/pwm-sun4i.c
@@ -16,6 +16,7 @@
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/pwm.h>
+#include <linux/reset.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/time.h>
@@ -78,6 +79,7 @@ struct sun4i_pwm_data {
struct sun4i_pwm_chip {
struct pwm_chip chip;
struct clk *clk;
+ struct reset_control *rst;
void __iomem *base;
spinlock_t ctrl_lock;
const struct sun4i_pwm_data *data;
@@ -364,6 +366,22 @@ static int sun4i_pwm_probe(struct platform_device *pdev)
if (IS_ERR(pwm->clk))
return PTR_ERR(pwm->clk);
+ pwm->rst = devm_reset_control_get_optional_shared(&pdev->dev, NULL);
+ if (IS_ERR(pwm->rst)) {
+ if (PTR_ERR(pwm->rst) != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "get reset failed %pe\n",
+ pwm->rst);
+ return PTR_ERR(pwm->rst);
+ }
+
+ /* Deassert reset */
+ ret = reset_control_deassert(pwm->rst);
+ if (ret) {
+ dev_err(&pdev->dev, "cannot deassert reset control: %pe\n",
+ ERR_PTR(ret));
+ return ret;
+ }
+
pwm->chip.dev = &pdev->dev;
pwm->chip.ops = &sun4i_pwm_ops;
pwm->chip.base = -1;
@@ -376,19 +394,31 @@ static int sun4i_pwm_probe(struct platform_device *pdev)
ret = pwmchip_add(&pwm->chip);
if (ret < 0) {
dev_err(&pdev->dev, "failed to add PWM chip: %d\n", ret);
- return ret;
+ goto err_pwm_add;
}
platform_set_drvdata(pdev, pwm);
return 0;
+
+err_pwm_add:
+ reset_control_assert(pwm->rst);
+
+ return ret;
}
static int sun4i_pwm_remove(struct platform_device *pdev)
{
struct sun4i_pwm_chip *pwm = platform_get_drvdata(pdev);
+ int ret;
+
+ ret = pwmchip_remove(&pwm->chip);
+ if (ret)
+ return ret;
+
+ reset_control_assert(pwm->rst);
- return pwmchip_remove(&pwm->chip);
+ return 0;
}
static struct platform_driver sun4i_pwm_driver = {
diff --git a/drivers/pwm/pwm-sun4i.c b/drivers/pwm/pwm-sun4i.c
index 487899d4cc3f..80026167044b 100644
--- a/drivers/pwm/pwm-sun4i.c
+++ b/drivers/pwm/pwm-sun4i.c
@@ -362,9 +362,34 @@ static int sun4i_pwm_probe(struct platform_device *pdev)
if (IS_ERR(pwm->base))
return PTR_ERR(pwm->base);
- pwm->clk = devm_clk_get(&pdev->dev, NULL);
- if (IS_ERR(pwm->clk))
+ /*
+ * All hardware variants need a source clock that is divided and
+ * then feeds the counter that defines the output wave form. In the
+ * device tree this clock is either unnamed or called "mod".
+ * Some variants (e.g. H6) need another clock to access the
+ * hardware registers; this is called "bus".
+ * So we request "mod" first (and ignore the corner case that a
+ * parent provides a "mod" clock while the right one would be the
+ * unnamed one of the PWM device) and if this is not found we fall
+ * back to the first clock of the PWM.
+ */
+ pwm->clk = devm_clk_get_optional(&pdev->dev, "mod");
+ if (IS_ERR(pwm->clk)) {
+ if (PTR_ERR(pwm->rst) != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "get mod clock failed %pe\n",
+ pwm->clk);
return PTR_ERR(pwm->clk);
+ }
+
+ if (!pwm->clk) {
+ pwm->clk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(pwm->clk)) {
+ if (PTR_ERR(pwm->rst) != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "get unnamed clock failed %pe\n",
+ pwm->clk);
+ return PTR_ERR(pwm->clk);
+ }
+ }
pwm->rst = devm_reset_control_get_optional_shared(&pdev->dev, NULL);
if (IS_ERR(pwm->rst)) {
diff --git a/drivers/pwm/pwm-sun4i.c b/drivers/pwm/pwm-sun4i.c
index 80026167044b..a6727dd89e28 100644
--- a/drivers/pwm/pwm-sun4i.c
+++ b/drivers/pwm/pwm-sun4i.c
@@ -78,6 +78,7 @@ struct sun4i_pwm_data {
struct sun4i_pwm_chip {
struct pwm_chip chip;
+ struct clk *bus_clk;
struct clk *clk;
struct reset_control *rst;
void __iomem *base;
@@ -391,6 +392,14 @@ static int sun4i_pwm_probe(struct platform_device *pdev)
}
}
+ pwm->bus_clk = devm_clk_get_optional(&pdev->dev, "bus");
+ if (IS_ERR(pwm->bus_clk)) {
+ if (PTR_ERR(pwm->rst) != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "get bus clock failed %pe\n",
+ pwm->bus_clk);
+ return PTR_ERR(pwm->bus_clk);
+ }
+
pwm->rst = devm_reset_control_get_optional_shared(&pdev->dev, NULL);
if (IS_ERR(pwm->rst)) {
if (PTR_ERR(pwm->rst) != -EPROBE_DEFER)
@@ -407,6 +416,17 @@ static int sun4i_pwm_probe(struct platform_device *pdev)
return ret;
}
+ /*
+ * We're keeping the bus clock on for the sake of simplicity.
+ * Actually it only needs to be on for hardware register accesses.
+ */
+ ret = clk_prepare_enable(pwm->bus_clk);
+ if (ret) {
+ dev_err(&pdev->dev, "cannot prepare and enable bus_clk %pe\n",
+ ERR_PTR(ret));
+ goto err_bus;
+ }
+
pwm->chip.dev = &pdev->dev;
pwm->chip.ops = &sun4i_pwm_ops;
pwm->chip.base = -1;
@@ -427,6 +447,8 @@ static int sun4i_pwm_probe(struct platform_device *pdev)
return 0;
err_pwm_add:
+ clk_disable_unprepare(pwm->bus_clk);
+err_bus:
reset_control_assert(pwm->rst);
return ret;
@@ -441,6 +463,7 @@ static int sun4i_pwm_remove(struct platform_device *pdev)
if (ret)
return ret;
+ clk_disable_unprepare(pwm->bus_clk);
reset_control_assert(pwm->rst);
return 0;
diff --git a/drivers/pwm/pwm-sun4i.c b/drivers/pwm/pwm-sun4i.c
index a6727dd89e28..e369b5a398f4 100644
--- a/drivers/pwm/pwm-sun4i.c
+++ b/drivers/pwm/pwm-sun4i.c
@@ -202,9 +202,9 @@ static int sun4i_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
{
struct sun4i_pwm_chip *sun4i_pwm = to_sun4i_pwm_chip(chip);
struct pwm_state cstate;
- u32 ctrl;
+ u32 ctrl, duty, period, val;
int ret;
- unsigned int delay_us;
+ unsigned int delay_us, prescaler;
unsigned long now;
pwm_get_state(pwm, &cstate);
@@ -220,43 +220,37 @@ static int sun4i_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
spin_lock(&sun4i_pwm->ctrl_lock);
ctrl = sun4i_pwm_readl(sun4i_pwm, PWM_CTRL_REG);
- if ((cstate.period != state->period) ||
- (cstate.duty_cycle != state->duty_cycle)) {
- u32 period, duty, val;
- unsigned int prescaler;
-
- ret = sun4i_pwm_calculate(sun4i_pwm, state,
- &duty, &period, &prescaler);
- if (ret) {
- dev_err(chip->dev, "period exceeds the maximum value\n");
- spin_unlock(&sun4i_pwm->ctrl_lock);
- if (!cstate.enabled)
- clk_disable_unprepare(sun4i_pwm->clk);
- return ret;
- }
-
- if (PWM_REG_PRESCAL(ctrl, pwm->hwpwm) != prescaler) {
- /* Prescaler changed, the clock has to be gated */
- ctrl &= ~BIT_CH(PWM_CLK_GATING, pwm->hwpwm);
- sun4i_pwm_writel(sun4i_pwm, ctrl, PWM_CTRL_REG);
+ ret = sun4i_pwm_calculate(sun4i_pwm, state, &duty, &period, &prescaler);
+ if (ret) {
+ dev_err(chip->dev, "period exceeds the maximum value\n");
+ spin_unlock(&sun4i_pwm->ctrl_lock);
+ if (!cstate.enabled)
+ clk_disable_unprepare(sun4i_pwm->clk);
+ return ret;
+ }
- ctrl &= ~BIT_CH(PWM_PRESCAL_MASK, pwm->hwpwm);
- ctrl |= BIT_CH(prescaler, pwm->hwpwm);
- }
+ if (PWM_REG_PRESCAL(ctrl, pwm->hwpwm) != prescaler) {
+ /* Prescaler changed, the clock has to be gated */
+ ctrl &= ~BIT_CH(PWM_CLK_GATING, pwm->hwpwm);
+ sun4i_pwm_writel(sun4i_pwm, ctrl, PWM_CTRL_REG);
- val = (duty & PWM_DTY_MASK) | PWM_PRD(period);
- sun4i_pwm_writel(sun4i_pwm, val, PWM_CH_PRD(pwm->hwpwm));
- sun4i_pwm->next_period[pwm->hwpwm] = jiffies +
- usecs_to_jiffies(cstate.period / 1000 + 1);
- sun4i_pwm->needs_delay[pwm->hwpwm] = true;
+ ctrl &= ~BIT_CH(PWM_PRESCAL_MASK, pwm->hwpwm);
+ ctrl |= BIT_CH(prescaler, pwm->hwpwm);
}
+ val = (duty & PWM_DTY_MASK) | PWM_PRD(period);
+ sun4i_pwm_writel(sun4i_pwm, val, PWM_CH_PRD(pwm->hwpwm));
+ sun4i_pwm->next_period[pwm->hwpwm] = jiffies +
+ usecs_to_jiffies(cstate.period / 1000 + 1);
+ sun4i_pwm->needs_delay[pwm->hwpwm] = true;
+
if (state->polarity != PWM_POLARITY_NORMAL)
ctrl &= ~BIT_CH(PWM_ACT_STATE, pwm->hwpwm);
else
ctrl |= BIT_CH(PWM_ACT_STATE, pwm->hwpwm);
ctrl |= BIT_CH(PWM_CLK_GATING, pwm->hwpwm);
+
if (state->enabled) {
ctrl |= BIT_CH(PWM_EN, pwm->hwpwm);
} else if (!sun4i_pwm->needs_delay[pwm->hwpwm]) {
diff --git a/drivers/pwm/pwm-sun4i.c b/drivers/pwm/pwm-sun4i.c
index e369b5a398f4..07bf7be6074b 100644
--- a/drivers/pwm/pwm-sun4i.c
+++ b/drivers/pwm/pwm-sun4i.c
@@ -3,6 +3,10 @@
* Driver for Allwinner sun4i Pulse Width Modulation Controller
*
* Copyright (C) 2014 Alexandre Belloni <alexandre.belloni@free-electrons.com>
+ *
+ * Limitations:
+ * - When outputing the source clock directly, the PWM logic will be bypassed
+ * and the currently running period is not guaranteed to be completed
*/
#include <linux/bitops.h>
@@ -73,6 +77,7 @@ static const u32 prescaler_table[] = {
struct sun4i_pwm_data {
bool has_prescaler_bypass;
+ bool has_direct_mod_clk_output;
unsigned int npwm;
};
@@ -118,6 +123,20 @@ static void sun4i_pwm_get_state(struct pwm_chip *chip,
val = sun4i_pwm_readl(sun4i_pwm, PWM_CTRL_REG);
+ /*
+ * PWM chapter in H6 manual has a diagram which explains that if bypass
+ * bit is set, no other setting has any meaning. Even more, experiment
+ * proved that also enable bit is ignored in this case.
+ */
+ if ((val & BIT_CH(PWM_BYPASS, pwm->hwpwm)) &&
+ sun4i_pwm->data->has_direct_mod_clk_output) {
+ state->period = DIV_ROUND_UP_ULL(NSEC_PER_SEC, clk_rate);
+ state->duty_cycle = DIV_ROUND_UP_ULL(state->period, 2);
+ state->polarity = PWM_POLARITY_NORMAL;
+ state->enabled = true;
+ return;
+ }
+
if ((PWM_REG_PRESCAL(val, pwm->hwpwm) == PWM_PRESCAL_MASK) &&
sun4i_pwm->data->has_prescaler_bypass)
prescaler = 1;
@@ -149,13 +168,24 @@ static void sun4i_pwm_get_state(struct pwm_chip *chip,
static int sun4i_pwm_calculate(struct sun4i_pwm_chip *sun4i_pwm,
const struct pwm_state *state,
- u32 *dty, u32 *prd, unsigned int *prsclr)
+ u32 *dty, u32 *prd, unsigned int *prsclr,
+ bool *bypass)
{
u64 clk_rate, div = 0;
unsigned int pval, prescaler = 0;
clk_rate = clk_get_rate(sun4i_pwm->clk);
+ *bypass = sun4i_pwm->data->has_direct_mod_clk_output &&
+ state->enabled &&
+ (state->period * clk_rate >= NSEC_PER_SEC) &&
+ (state->period * clk_rate < 2 * NSEC_PER_SEC) &&
+ (state->duty_cycle * clk_rate * 2 >= NSEC_PER_SEC);
+
+ /* Skip calculation of other parameters if we bypass them */
+ if (*bypass)
+ return 0;
+
if (sun4i_pwm->data->has_prescaler_bypass) {
/* First, test without any prescaler when available */
prescaler = PWM_PRESCAL_MASK;
@@ -206,6 +236,7 @@ static int sun4i_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
int ret;
unsigned int delay_us, prescaler;
unsigned long now;
+ bool bypass;
pwm_get_state(pwm, &cstate);
@@ -220,7 +251,8 @@ static int sun4i_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
spin_lock(&sun4i_pwm->ctrl_lock);
ctrl = sun4i_pwm_readl(sun4i_pwm, PWM_CTRL_REG);
- ret = sun4i_pwm_calculate(sun4i_pwm, state, &duty, &period, &prescaler);
+ ret = sun4i_pwm_calculate(sun4i_pwm, state, &duty, &period, &prescaler,
+ &bypass);
if (ret) {
dev_err(chip->dev, "period exceeds the maximum value\n");
spin_unlock(&sun4i_pwm->ctrl_lock);
@@ -229,6 +261,18 @@ static int sun4i_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
return ret;
}
+ if (sun4i_pwm->data->has_direct_mod_clk_output) {
+ if (bypass) {
+ ctrl |= BIT_CH(PWM_BYPASS, pwm->hwpwm);
+ /* We can skip other parameter */
+ sun4i_pwm_writel(sun4i_pwm, ctrl, PWM_CTRL_REG);
+ spin_unlock(&sun4i_pwm->ctrl_lock);
+ return 0;
+ } else {
+ ctrl &= ~BIT_CH(PWM_BYPASS, pwm->hwpwm);
+ }
+ }
+
if (PWM_REG_PRESCAL(ctrl, pwm->hwpwm) != prescaler) {
/* Prescaler changed, the clock has to be gated */
ctrl &= ~BIT_CH(PWM_CLK_GATING, pwm->hwpwm);
diff --git a/drivers/pwm/pwm-sun4i.c b/drivers/pwm/pwm-sun4i.c
index 07bf7be6074b..c394878c7e5d 100644
--- a/drivers/pwm/pwm-sun4i.c
+++ b/drivers/pwm/pwm-sun4i.c
@@ -360,6 +360,12 @@ static const struct sun4i_pwm_data sun4i_pwm_single_bypass = {
.npwm = 1,
};
+static const struct sun4i_pwm_data sun50i_h6_pwm_data = {
+ .has_prescaler_bypass = true,
+ .has_direct_mod_clk_output = true,
+ .npwm = 2,
+};
+
static const struct of_device_id sun4i_pwm_dt_ids[] = {
{
.compatible = "allwinner,sun4i-a10-pwm",
@@ -376,6 +382,9 @@ static const struct of_device_id sun4i_pwm_dt_ids[] = {
}, {
.compatible = "allwinner,sun8i-h3-pwm",
.data = &sun4i_pwm_single_bypass,
+ }, {
+ .compatible = "allwinner,sun50i-h6-pwm",
+ .data = &sun50i_h6_pwm_data,
}, {
/* sentinel */
},

37
target/linux/sunxi/patches-5.4/441-arm64-dts-add-PWM-node.patch Normal file
View File

@@ -0,0 +1,37 @@
From: Jernej Skrabec <jernej.skrabec@siol.net>
Allwinner H6 PWM is similar to that in A20 except that it has additional
bus clock and reset line.
Note that first PWM channel is connected to output pin and second
channel is used internally, as a clock source to AC200 co-packaged chip.
This means that any combination of these two channels can be used and
thus it doesn't make sense to add pinctrl nodes at this point.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Clément Péron <peron.clem@gmail.com>
---
arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
index 29824081b43b..6d4bde488f15 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
@@ -245,6 +245,16 @@
status = "disabled";
};
+ pwm: pwm@300a000 {
+ compatible = "allwinner,sun50i-h6-pwm";
+ reg = <0x0300a000 0x400>;
+ clocks = <&osc24M>, <&ccu CLK_BUS_PWM>;
+ clock-names = "mod", "bus";
+ resets = <&ccu RST_BUS_PWM>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
pio: pinctrl@300b000 {
compatible = "allwinner,sun50i-h6-pinctrl";
reg = <0x0300b000 0x400>;

12
target/linux/sunxi/patches-5.4/442-arm64-dts-orangepi-one-plus-enable-PWM.patch Normal file
View File

@@ -0,0 +1,12 @@
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-one-plus.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-one-plus.dts
index f335f7482a73..cf684bc7374d 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-one-plus.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-one-plus.dts
@@ -45,3 +45,7 @@
reg = <1>;
};
};
+
+&pwm {
+ status = "okay";
+};

44
target/linux/sunxi/patches-5.4/443-board-h6-orangepioneplus-fix-missing-ethernet.patch Normal file
View File

@@ -0,0 +1,44 @@
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-one-plus.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-one-plus.dts
index 12e1756..79139f3 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-one-plus.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-one-plus.dts
@@ -9,4 +9,39 @@
/ {
model = "OrangePi One Plus";
compatible = "xunlong,orangepi-one-plus", "allwinner,sun50i-h6";
+
+ aliases {
+ serial0 = &uart0;
+ ethernet0 = &emac;
+ };
+
+ reg_gmac_3v3: gmac-3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc-gmac-3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ startup-delay-us = <100000>;
+ enable-active-high;
+ gpio = <&pio 3 6 GPIO_ACTIVE_HIGH>; /* PD6 */
+ vin-supply = <&reg_aldo2>;
+ };
+};
+
+
+&emac {
+ pinctrl-names = "default";
+ pinctrl-0 = <&ext_rgmii_pins>;
+ phy-mode = "rgmii";
+ phy-handle = <&ext_rgmii_phy>;
+ phy-supply = <&reg_gmac_3v3>;
+ allwinner,rx-delay-ps = <200>;
+ allwinner,tx-delay-ps = <200>;
+ status = "okay";
+};
+
+&mdio {
+ ext_rgmii_phy: ethernet-phy@1 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <1>;
+ };
};