[PATCH 0/5] k3-j721e: beagleboneai: Fix USB

[PATCH 0/5] k3-j721e: beagleboneai: Fix USB

[Roger Quadros]

Hi,

This series fixes USB operation on k3-j721e based boards.

CI testing: https://github.com/u-boot/u-boot/pull/468

cheers,
-roger

Roger Quadros (5):
  board: ti: j721e: Drop SERDES PHY init from board file
  usb: cdns3: avoid error messages if phys don't exist
  arm: dts: k3-j721e: Fix USB0 operation
  arm: dts: k3-j721e-beagleboneai64: Fix USB operation
  configs/j721e_beagleboneai64_a72_defconfig: Enable Sierra PHY

 .../dts/k3-j721e-beagleboneai64-u-boot.dtsi   |  2 +
 .../k3-j721e-common-proc-board-u-boot.dtsi    |  8 ++
 arch/arm/dts/k3-j721e-sk-u-boot.dtsi          |  8 ++
 board/ti/j721e/evm.c                          | 77 -------------------
 configs/j721e_beagleboneai64_a72_defconfig    |  2 +
 drivers/usb/cdns3/core.c                      | 28 ++++---
 6 files changed, 38 insertions(+), 87 deletions(-)


base-commit: f28a77589e7505535a4eebdc7269df98f67dbe68
-- 
2.34.1

[PATCH 1/5] board: ti: j721e: Drop SERDES PHY init from board file

[Roger Quadros]

Since commit 69b19ca67bcb ("arm: dts: k3-j721e: Sync with v6.6-rc1"),
the following error message is seen at u-boot
	"Sierra init failed:-19"

Probing and initializing the SERDES PHY from
board file is not a clean solution so drop it.

Proper use case should be via PHY_UCLASS APIs.

Signed-off-by: Roger Quadros <rogerq@kernel.org>
---
 board/ti/j721e/evm.c | 77 --------------------------------------------
 1 file changed, 77 deletions(-)

diff --git a/board/ti/j721e/evm.c b/board/ti/j721e/evm.c
index c541880107..b77cffc5ef 100644
--- a/board/ti/j721e/evm.c
+++ b/board/ti/j721e/evm.c
@@ -352,77 +352,6 @@ static int probe_daughtercards(void)
 }
 #endif
 
-void configure_serdes_torrent(void)
-{
-	struct udevice *dev;
-	struct phy serdes;
-	int ret;
-
-	if (!IS_ENABLED(CONFIG_PHY_CADENCE_TORRENT))
-		return;
-
-	ret = uclass_get_device_by_driver(UCLASS_PHY,
-					  DM_DRIVER_GET(torrent_phy_provider),
-					  &dev);
-	if (ret) {
-		printf("Torrent init failed:%d\n", ret);
-		return;
-	}
-
-	serdes.dev = dev;
-	serdes.id = 0;
-
-	ret = generic_phy_init(&serdes);
-	if (ret) {
-		printf("phy_init failed!!: %d\n", ret);
-		return;
-	}
-
-	ret = generic_phy_power_on(&serdes);
-	if (ret) {
-		printf("phy_power_on failed!!: %d\n", ret);
-		return;
-	}
-}
-
-void configure_serdes_sierra(void)
-{
-	struct udevice *dev, *link_dev;
-	struct phy link;
-	int ret, count, i;
-	int link_count = 0;
-
-	if (!IS_ENABLED(CONFIG_PHY_CADENCE_SIERRA))
-		return;
-
-	ret = uclass_get_device_by_driver(UCLASS_MISC,
-					  DM_DRIVER_GET(sierra_phy_provider),
-					  &dev);
-	if (ret) {
-		printf("Sierra init failed:%d\n", ret);
-		return;
-	}
-
-	count = device_get_child_count(dev);
-	for (i = 0; i < count; i++) {
-		ret = device_get_child(dev, i, &link_dev);
-		if (ret) {
-			printf("probe of sierra child node %d failed: %d\n", i, ret);
-			return;
-		}
-		if (link_dev->driver->id == UCLASS_PHY) {
-			link.dev = link_dev;
-			link.id = link_count++;
-
-			ret = generic_phy_power_on(&link);
-			if (ret) {
-				printf("phy_power_on failed!!: %d\n", ret);
-				return;
-			}
-		}
-	}
-}
-
 #ifdef CONFIG_BOARD_LATE_INIT
 static void setup_board_eeprom_env(void)
 {
@@ -476,12 +405,6 @@ int board_late_init(void)
 			probe_daughtercards();
 	}
 
-	if (board_is_j7200_som())
-		configure_serdes_torrent();
-
-	if (board_is_j721e_som())
-		configure_serdes_sierra();
-
 	return 0;
 }
 #endif
-- 
2.34.1

[PATCH 2/5] usb: cdns3: avoid error messages if phys don't exist

[Roger Quadros]

The phys property is optional so don't complain
if it doesn't exist in device tree.

Signed-off-by: Roger Quadros <rogerq@kernel.org>
---
 drivers/usb/cdns3/core.c | 28 ++++++++++++++++++----------
 1 file changed, 18 insertions(+), 10 deletions(-)

diff --git a/drivers/usb/cdns3/core.c b/drivers/usb/cdns3/core.c
index 644a9791b9..12a741c6ea 100644
--- a/drivers/usb/cdns3/core.c
+++ b/drivers/usb/cdns3/core.c
@@ -333,20 +333,28 @@ static int cdns3_probe(struct cdns3 *cdns)
 	mutex_init(&cdns->mutex);
 
 	ret = generic_phy_get_by_name(dev, "cdns3,usb2-phy", &cdns->usb2_phy);
-	if (ret)
-		dev_warn(dev, "Unable to get USB2 phy (ret %d)\n", ret);
-
-	ret = generic_phy_init(&cdns->usb2_phy);
-	if (ret)
+	if (!ret) {
+		ret = generic_phy_init(&cdns->usb2_phy);
+		if (ret) {
+			dev_err(dev, "USB2 PHY init failed: %d\n", ret);
+			return ret;
+		}
+	} else if (ret != -ENOENT && ret != -ENODATA) {
+		dev_err(dev, "Couldn't get USB2 PHY:  %d\n", ret);
 		return ret;
+	}
 
 	ret = generic_phy_get_by_name(dev, "cdns3,usb3-phy", &cdns->usb3_phy);
-	if (ret)
-		dev_warn(dev, "Unable to get USB3 phy (ret %d)\n", ret);
-
-	ret = generic_phy_init(&cdns->usb3_phy);
-	if (ret)
+	if (!ret) {
+		ret = generic_phy_init(&cdns->usb3_phy);
+		if (ret) {
+			dev_err(dev, "USB3 PHY init failed: %d\n", ret);
+			return ret;
+		}
+	} else if (ret != -ENOENT && ret != -ENODATA) {
+		dev_err(dev, "Couldn't get USB3 PHY:  %d\n", ret);
 		return ret;
+	}
 
 	ret = generic_phy_power_on(&cdns->usb2_phy);
 	if (ret)
-- 
2.34.1

[PATCH 3/5] arm: dts: k3-j721e: Fix USB0 operation

[Roger Quadros]

Without correct SERDES MUX and Lane control settings
USB0 will be broken. Set the MUX and Lane control devices
to be auto probed so they are configured correctly.

Fixes: 69b19ca67bcb ("arm: dts: k3-j721e: Sync with v6.6-rc1")
Signed-off-by: Roger Quadros <rogerq@kernel.org>
---
 arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi | 8 ++++++++
 arch/arm/dts/k3-j721e-sk-u-boot.dtsi                | 8 ++++++++
 2 files changed, 16 insertions(+)

diff --git a/arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi b/arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi
index b77f8d92de..7ae7cf3d4c 100644
--- a/arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi
+++ b/arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi
@@ -93,6 +93,14 @@
 	bootph-all;
 };
 
+&serdes_ln_ctrl {
+	u-boot,mux-autoprobe;
+};
+
+&usb_serdes_mux {
+	u-boot,mux-autoprobe;
+};
+
 &main_usbss0_pins_default {
 	bootph-all;
 };
diff --git a/arch/arm/dts/k3-j721e-sk-u-boot.dtsi b/arch/arm/dts/k3-j721e-sk-u-boot.dtsi
index 370fe5190b..479b7bcd6f 100644
--- a/arch/arm/dts/k3-j721e-sk-u-boot.dtsi
+++ b/arch/arm/dts/k3-j721e-sk-u-boot.dtsi
@@ -89,6 +89,14 @@
 	bootph-all;
 };
 
+&serdes_ln_ctrl {
+	u-boot,mux-autoprobe;
+};
+
+&usb_serdes_mux {
+	u-boot,mux-autoprobe;
+};
+
 &main_usbss0_pins_default {
 	bootph-all;
 };
-- 
2.34.1

[PATCH 4/5] arm: dts: k3-j721e-beagleboneai64: Fix USB operation

[Roger Quadros]

Without correct SERDES MUX and Lane control settings
USB0 will be broken. Set the MUX and Lane control devices
to be auto probed so they are configured correctly.

Signed-off-by: Roger Quadros <rogerq@kernel.org>
---
 arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi b/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
index f83caf7998..017a5a722e 100644
--- a/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
+++ b/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
@@ -165,6 +165,7 @@
 
 &serdes_ln_ctrl {
 	bootph-all;
+	u-boot,mux-autoprobe;
 };
 
 &serdes2_usb_link {
@@ -173,6 +174,7 @@
 
 &usb_serdes_mux {
 	bootph-all;
+	u-boot,mux-autoprobe;
 };
 
 &serdes_wiz2 {
-- 
2.34.1

Re: [PATCH 4/5] arm: dts: k3-j721e-beagleboneai64: Fix USB operation

[Nishanth Menon]

On 14:49-20240112, Roger Quadros wrote:
> Without correct SERDES MUX and Lane control settings
> USB0 will be broken. Set the MUX and Lane control devices
> to be auto probed so they are configured correctly.
> 
> Signed-off-by: Roger Quadros <rogerq@kernel.org>
> ---
>  arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi b/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
> index f83caf7998..017a5a722e 100644
> --- a/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
> +++ b/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
> @@ -165,6 +165,7 @@
>  
>  &serdes_ln_ctrl {
>  	bootph-all;
> +	u-boot,mux-autoprobe;
>  };
>  
>  &serdes2_usb_link {
> @@ -173,6 +174,7 @@
>  
>  &usb_serdes_mux {
>  	bootph-all;
> +	u-boot,mux-autoprobe;
>  };
>  
>  &serdes_wiz2 {
> -- 
> 2.34.1
> 

Is this a u-boot thing? or a driver limitation?

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D

Re: [PATCH 4/5] arm: dts: k3-j721e-beagleboneai64: Fix USB operation

[Roger Quadros]

On 12/01/2024 15:02, Nishanth Menon wrote:
> On 14:49-20240112, Roger Quadros wrote:
>> Without correct SERDES MUX and Lane control settings
>> USB0 will be broken. Set the MUX and Lane control devices
>> to be auto probed so they are configured correctly.
>>
>> Signed-off-by: Roger Quadros <rogerq@kernel.org>
>> ---
>>  arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi | 2 ++
>>  1 file changed, 2 insertions(+)
>>
>> diff --git a/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi b/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
>> index f83caf7998..017a5a722e 100644
>> --- a/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
>> +++ b/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
>> @@ -165,6 +165,7 @@
>>  
>>  &serdes_ln_ctrl {
>>  	bootph-all;
>> +	u-boot,mux-autoprobe;
>>  };
>>  
>>  &serdes2_usb_link {
>> @@ -173,6 +174,7 @@
>>  
>>  &usb_serdes_mux {
>>  	bootph-all;
>> +	u-boot,mux-autoprobe;
>>  };
>>  
>>  &serdes_wiz2 {
>> -- 
>> 2.34.1
>>
> 
> Is this a u-boot thing? or a driver limitation?
> 

u-boot specific. We just want the mux driver to probe
and apply the settings.

from drivers/mux/mux-uclass.c

int dm_mux_init(void)
{
        struct uclass *uc;
        struct udevice *dev;
        int ret;

        ret = uclass_get(UCLASS_MUX, &uc);
        if (ret < 0) {
                log_debug("unable to get MUX uclass\n");
                return ret;
        }
        uclass_foreach_dev(dev, uc) {
                if (dev_read_bool(dev, "u-boot,mux-autoprobe")) {
                        ret = device_probe(dev);
                        if (ret)
                                log_debug("unable to probe device %s\n",
                                          dev->name);
                }
        }

        return 0;
}


-- 
cheers,
-roger

Re: [PATCH 4/5] arm: dts: k3-j721e-beagleboneai64: Fix USB operation

[Nishanth Menon]

On 15:06-20240112, Roger Quadros wrote:
> 
> 
> On 12/01/2024 15:02, Nishanth Menon wrote:
> > On 14:49-20240112, Roger Quadros wrote:
> >> Without correct SERDES MUX and Lane control settings
> >> USB0 will be broken. Set the MUX and Lane control devices
> >> to be auto probed so they are configured correctly.
> >>
> >> Signed-off-by: Roger Quadros <rogerq@kernel.org>
> >> ---
> >>  arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi | 2 ++
> >>  1 file changed, 2 insertions(+)
> >>
> >> diff --git a/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi b/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
> >> index f83caf7998..017a5a722e 100644
> >> --- a/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
> >> +++ b/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
> >> @@ -165,6 +165,7 @@
> >>  
> >>  &serdes_ln_ctrl {
> >>  	bootph-all;
> >> +	u-boot,mux-autoprobe;
> >>  };
> >>  
> >>  &serdes2_usb_link {
> >> @@ -173,6 +174,7 @@
> >>  
> >>  &usb_serdes_mux {
> >>  	bootph-all;
> >> +	u-boot,mux-autoprobe;
> >>  };
> >>  
> >>  &serdes_wiz2 {
> >> -- 
> >> 2.34.1
> >>
> > 
> > Is this a u-boot thing? or a driver limitation?
> > 
> 
> u-boot specific. We just want the mux driver to probe
> and apply the settings.
> 
> from drivers/mux/mux-uclass.c
> 
> int dm_mux_init(void)
> {
>         struct uclass *uc;
>         struct udevice *dev;
>         int ret;
> 
>         ret = uclass_get(UCLASS_MUX, &uc);
>         if (ret < 0) {
>                 log_debug("unable to get MUX uclass\n");
>                 return ret;
>         }
>         uclass_foreach_dev(dev, uc) {
>                 if (dev_read_bool(dev, "u-boot,mux-autoprobe")) {
>                         ret = device_probe(dev);
>                         if (ret)
>                                 log_debug("unable to probe device %s\n",
>                                           dev->name);
>                 }
>         }
> 
>         return 0;
> }
> 
> 

Uggh.. We need to see eventually how to get rid of this.
This makes
https://lore.kernel.org/u-boot/20240110103547.719757-1-sumit.garg@linaro.org/#t
harder now?

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D

Re: [PATCH 4/5] arm: dts: k3-j721e-beagleboneai64: Fix USB operation

[Tom Rini]

[-- Attachment #1: Type: text/plain, Size: 2583 bytes --]

On Fri, Jan 12, 2024 at 07:14:50AM -0600, Nishanth Menon wrote:
> On 15:06-20240112, Roger Quadros wrote:
> > 
> > 
> > On 12/01/2024 15:02, Nishanth Menon wrote:
> > > On 14:49-20240112, Roger Quadros wrote:
> > >> Without correct SERDES MUX and Lane control settings
> > >> USB0 will be broken. Set the MUX and Lane control devices
> > >> to be auto probed so they are configured correctly.
> > >>
> > >> Signed-off-by: Roger Quadros <rogerq@kernel.org>
> > >> ---
> > >>  arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi | 2 ++
> > >>  1 file changed, 2 insertions(+)
> > >>
> > >> diff --git a/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi b/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
> > >> index f83caf7998..017a5a722e 100644
> > >> --- a/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
> > >> +++ b/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
> > >> @@ -165,6 +165,7 @@
> > >>  
> > >>  &serdes_ln_ctrl {
> > >>  	bootph-all;
> > >> +	u-boot,mux-autoprobe;
> > >>  };
> > >>  
> > >>  &serdes2_usb_link {
> > >> @@ -173,6 +174,7 @@
> > >>  
> > >>  &usb_serdes_mux {
> > >>  	bootph-all;
> > >> +	u-boot,mux-autoprobe;
> > >>  };
> > >>  
> > >>  &serdes_wiz2 {

OK, so both of these are compatible = "mmio-mux", is the problem they
aren't probed in time or something else?

> > >> -- 
> > >> 2.34.1
> > >>
> > > 
> > > Is this a u-boot thing? or a driver limitation?
> > > 
> > 
> > u-boot specific. We just want the mux driver to probe
> > and apply the settings.
> > 
> > from drivers/mux/mux-uclass.c
> > 
> > int dm_mux_init(void)
> > {
> >         struct uclass *uc;
> >         struct udevice *dev;
> >         int ret;
> > 
> >         ret = uclass_get(UCLASS_MUX, &uc);
> >         if (ret < 0) {
> >                 log_debug("unable to get MUX uclass\n");
> >                 return ret;
> >         }
> >         uclass_foreach_dev(dev, uc) {
> >                 if (dev_read_bool(dev, "u-boot,mux-autoprobe")) {
> >                         ret = device_probe(dev);
> >                         if (ret)
> >                                 log_debug("unable to probe device %s\n",
> >                                           dev->name);
> >                 }
> >         }
> > 
> >         return 0;
> > }
> > 
> > 
> 
> Uggh.. We need to see eventually how to get rid of this.
> This makes
> https://lore.kernel.org/u-boot/20240110103547.719757-1-sumit.garg@linaro.org/#t
> harder now?

No, it should be fine, Sumit's series handles -u-boot.dtsi files.

-- 
Tom

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Re: [PATCH 4/5] arm: dts: k3-j721e-beagleboneai64: Fix USB operation

[Roger Quadros]

On 12/01/2024 15:21, Tom Rini wrote:
> On Fri, Jan 12, 2024 at 07:14:50AM -0600, Nishanth Menon wrote:
>> On 15:06-20240112, Roger Quadros wrote:
>>>
>>>
>>> On 12/01/2024 15:02, Nishanth Menon wrote:
>>>> On 14:49-20240112, Roger Quadros wrote:
>>>>> Without correct SERDES MUX and Lane control settings
>>>>> USB0 will be broken. Set the MUX and Lane control devices
>>>>> to be auto probed so they are configured correctly.
>>>>>
>>>>> Signed-off-by: Roger Quadros <rogerq@kernel.org>
>>>>> ---
>>>>>  arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi | 2 ++
>>>>>  1 file changed, 2 insertions(+)
>>>>>
>>>>> diff --git a/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi b/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
>>>>> index f83caf7998..017a5a722e 100644
>>>>> --- a/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
>>>>> +++ b/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
>>>>> @@ -165,6 +165,7 @@
>>>>>  
>>>>>  &serdes_ln_ctrl {
>>>>>  	bootph-all;
>>>>> +	u-boot,mux-autoprobe;
>>>>>  };
>>>>>  
>>>>>  &serdes2_usb_link {
>>>>> @@ -173,6 +174,7 @@
>>>>>  
>>>>>  &usb_serdes_mux {
>>>>>  	bootph-all;
>>>>> +	u-boot,mux-autoprobe;
>>>>>  };
>>>>>  
>>>>>  &serdes_wiz2 {
> 
> OK, so both of these are compatible = "mmio-mux", is the problem they
> aren't probed in time or something else?
> 

That's correct. They aren't probed ever. But that is because there are no
explicit consumers for them. Since this is a platform wide configuration,
we have been relying on the "idle-states" property and that they are auto-probed.

>>>>> -- 
>>>>> 2.34.1
>>>>>
>>>>
>>>> Is this a u-boot thing? or a driver limitation?
>>>>
>>>
>>> u-boot specific. We just want the mux driver to probe
>>> and apply the settings.
>>>
>>> from drivers/mux/mux-uclass.c
>>>
>>> int dm_mux_init(void)
>>> {
>>>         struct uclass *uc;
>>>         struct udevice *dev;
>>>         int ret;
>>>
>>>         ret = uclass_get(UCLASS_MUX, &uc);
>>>         if (ret < 0) {
>>>                 log_debug("unable to get MUX uclass\n");
>>>                 return ret;
>>>         }
>>>         uclass_foreach_dev(dev, uc) {
>>>                 if (dev_read_bool(dev, "u-boot,mux-autoprobe")) {
>>>                         ret = device_probe(dev);
>>>                         if (ret)
>>>                                 log_debug("unable to probe device %s\n",
>>>                                           dev->name);
>>>                 }
>>>         }
>>>
>>>         return 0;
>>> }
>>>
>>>
>>
>> Uggh.. We need to see eventually how to get rid of this.
>> This makes
>> https://lore.kernel.org/u-boot/20240110103547.719757-1-sumit.garg@linaro.org/#t
>> harder now?
> 
> No, it should be fine, Sumit's series handles -u-boot.dtsi files.
> 

-- 
cheers,
-roger

Re: [PATCH 4/5] arm: dts: k3-j721e-beagleboneai64: Fix USB operation

[Tom Rini]

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On Mon, Jan 15, 2024 at 01:40:00PM +0200, Roger Quadros wrote:
> 
> 
> On 12/01/2024 15:21, Tom Rini wrote:
> > On Fri, Jan 12, 2024 at 07:14:50AM -0600, Nishanth Menon wrote:
> >> On 15:06-20240112, Roger Quadros wrote:
> >>>
> >>>
> >>> On 12/01/2024 15:02, Nishanth Menon wrote:
> >>>> On 14:49-20240112, Roger Quadros wrote:
> >>>>> Without correct SERDES MUX and Lane control settings
> >>>>> USB0 will be broken. Set the MUX and Lane control devices
> >>>>> to be auto probed so they are configured correctly.
> >>>>>
> >>>>> Signed-off-by: Roger Quadros <rogerq@kernel.org>
> >>>>> ---
> >>>>>  arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi | 2 ++
> >>>>>  1 file changed, 2 insertions(+)
> >>>>>
> >>>>> diff --git a/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi b/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
> >>>>> index f83caf7998..017a5a722e 100644
> >>>>> --- a/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
> >>>>> +++ b/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
> >>>>> @@ -165,6 +165,7 @@
> >>>>>  
> >>>>>  &serdes_ln_ctrl {
> >>>>>  	bootph-all;
> >>>>> +	u-boot,mux-autoprobe;
> >>>>>  };
> >>>>>  
> >>>>>  &serdes2_usb_link {
> >>>>> @@ -173,6 +174,7 @@
> >>>>>  
> >>>>>  &usb_serdes_mux {
> >>>>>  	bootph-all;
> >>>>> +	u-boot,mux-autoprobe;
> >>>>>  };
> >>>>>  
> >>>>>  &serdes_wiz2 {
> > 
> > OK, so both of these are compatible = "mmio-mux", is the problem they
> > aren't probed in time or something else?
> > 
> 
> That's correct. They aren't probed ever. But that is because there are no
> explicit consumers for them. Since this is a platform wide configuration,
> we have been relying on the "idle-states" property and that they are auto-probed.

OK.  Could we borrow the "wrap" logic that drivers/led/led_gpio.c for
example does to get the probe to happen inside drivers/mux/mmio.c
instead? I feel like there might have been assumptions about grander
needs back when the framework for muxers was done that has not panned
out since.

-- 
Tom

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Re: [PATCH 4/5] arm: dts: k3-j721e-beagleboneai64: Fix USB operation

[Roger Quadros]

On 20/01/2024 18:50, Tom Rini wrote:
> On Mon, Jan 15, 2024 at 01:40:00PM +0200, Roger Quadros wrote:
>>
>>
>> On 12/01/2024 15:21, Tom Rini wrote:
>>> On Fri, Jan 12, 2024 at 07:14:50AM -0600, Nishanth Menon wrote:
>>>> On 15:06-20240112, Roger Quadros wrote:
>>>>>
>>>>>
>>>>> On 12/01/2024 15:02, Nishanth Menon wrote:
>>>>>> On 14:49-20240112, Roger Quadros wrote:
>>>>>>> Without correct SERDES MUX and Lane control settings
>>>>>>> USB0 will be broken. Set the MUX and Lane control devices
>>>>>>> to be auto probed so they are configured correctly.
>>>>>>>
>>>>>>> Signed-off-by: Roger Quadros <rogerq@kernel.org>
>>>>>>> ---
>>>>>>>  arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi | 2 ++
>>>>>>>  1 file changed, 2 insertions(+)
>>>>>>>
>>>>>>> diff --git a/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi b/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
>>>>>>> index f83caf7998..017a5a722e 100644
>>>>>>> --- a/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
>>>>>>> +++ b/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
>>>>>>> @@ -165,6 +165,7 @@
>>>>>>>  
>>>>>>>  &serdes_ln_ctrl {
>>>>>>>  	bootph-all;
>>>>>>> +	u-boot,mux-autoprobe;
>>>>>>>  };
>>>>>>>  
>>>>>>>  &serdes2_usb_link {
>>>>>>> @@ -173,6 +174,7 @@
>>>>>>>  
>>>>>>>  &usb_serdes_mux {
>>>>>>>  	bootph-all;
>>>>>>> +	u-boot,mux-autoprobe;
>>>>>>>  };
>>>>>>>  
>>>>>>>  &serdes_wiz2 {
>>>
>>> OK, so both of these are compatible = "mmio-mux", is the problem they
>>> aren't probed in time or something else?
>>>
>>
>> That's correct. They aren't probed ever. But that is because there are no
>> explicit consumers for them. Since this is a platform wide configuration,
>> we have been relying on the "idle-states" property and that they are auto-probed.
> 
> OK.  Could we borrow the "wrap" logic that drivers/led/led_gpio.c for
> example does to get the probe to happen inside drivers/mux/mmio.c
> instead? I feel like there might have been assumptions about grander
> needs back when the framework for muxers was done that has not panned
> out since.
> 

We only need the MUX driver to probe if the MUX node contains the "idle-states"
property.

So maybe the MUX UCLASS code should be checking for that instead of/along with
the custom u-boot,mux-autoprobe property?

How does this look?

diff --git a/drivers/mux/mux-uclass.c b/drivers/mux/mux-uclass.c
index c98576ceb8..8833888ded 100644
--- a/drivers/mux/mux-uclass.c
+++ b/drivers/mux/mux-uclass.c
@@ -318,7 +318,8 @@ int dm_mux_init(void)
 		return ret;
 	}
 	uclass_foreach_dev(dev, uc) {
-		if (dev_read_bool(dev, "u-boot,mux-autoprobe")) {
+		if (dev_read_bool(dev, "u-boot,mux-autoprobe") ||
+		    dev_read_bool(dev, "idle-states")) {
 			ret = device_probe(dev);
 			if (ret)
 				log_debug("unable to probe device %s\n",

-- 
cheers,
-roger

Re: [PATCH 4/5] arm: dts: k3-j721e-beagleboneai64: Fix USB operation

[Tom Rini]

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On Mon, Jan 22, 2024 at 01:39:06PM +0200, Roger Quadros wrote:
> 
> 
> On 20/01/2024 18:50, Tom Rini wrote:
> > On Mon, Jan 15, 2024 at 01:40:00PM +0200, Roger Quadros wrote:
> >>
> >>
> >> On 12/01/2024 15:21, Tom Rini wrote:
> >>> On Fri, Jan 12, 2024 at 07:14:50AM -0600, Nishanth Menon wrote:
> >>>> On 15:06-20240112, Roger Quadros wrote:
> >>>>>
> >>>>>
> >>>>> On 12/01/2024 15:02, Nishanth Menon wrote:
> >>>>>> On 14:49-20240112, Roger Quadros wrote:
> >>>>>>> Without correct SERDES MUX and Lane control settings
> >>>>>>> USB0 will be broken. Set the MUX and Lane control devices
> >>>>>>> to be auto probed so they are configured correctly.
> >>>>>>>
> >>>>>>> Signed-off-by: Roger Quadros <rogerq@kernel.org>
> >>>>>>> ---
> >>>>>>>  arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi | 2 ++
> >>>>>>>  1 file changed, 2 insertions(+)
> >>>>>>>
> >>>>>>> diff --git a/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi b/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
> >>>>>>> index f83caf7998..017a5a722e 100644
> >>>>>>> --- a/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
> >>>>>>> +++ b/arch/arm/dts/k3-j721e-beagleboneai64-u-boot.dtsi
> >>>>>>> @@ -165,6 +165,7 @@
> >>>>>>>  
> >>>>>>>  &serdes_ln_ctrl {
> >>>>>>>  	bootph-all;
> >>>>>>> +	u-boot,mux-autoprobe;
> >>>>>>>  };
> >>>>>>>  
> >>>>>>>  &serdes2_usb_link {
> >>>>>>> @@ -173,6 +174,7 @@
> >>>>>>>  
> >>>>>>>  &usb_serdes_mux {
> >>>>>>>  	bootph-all;
> >>>>>>> +	u-boot,mux-autoprobe;
> >>>>>>>  };
> >>>>>>>  
> >>>>>>>  &serdes_wiz2 {
> >>>
> >>> OK, so both of these are compatible = "mmio-mux", is the problem they
> >>> aren't probed in time or something else?
> >>>
> >>
> >> That's correct. They aren't probed ever. But that is because there are no
> >> explicit consumers for them. Since this is a platform wide configuration,
> >> we have been relying on the "idle-states" property and that they are auto-probed.
> > 
> > OK.  Could we borrow the "wrap" logic that drivers/led/led_gpio.c for
> > example does to get the probe to happen inside drivers/mux/mmio.c
> > instead? I feel like there might have been assumptions about grander
> > needs back when the framework for muxers was done that has not panned
> > out since.
> > 
> 
> We only need the MUX driver to probe if the MUX node contains the "idle-states"
> property.
> 
> So maybe the MUX UCLASS code should be checking for that instead of/along with
> the custom u-boot,mux-autoprobe property?
> 
> How does this look?
> 
> diff --git a/drivers/mux/mux-uclass.c b/drivers/mux/mux-uclass.c
> index c98576ceb8..8833888ded 100644
> --- a/drivers/mux/mux-uclass.c
> +++ b/drivers/mux/mux-uclass.c
> @@ -318,7 +318,8 @@ int dm_mux_init(void)
>  		return ret;
>  	}
>  	uclass_foreach_dev(dev, uc) {
> -		if (dev_read_bool(dev, "u-boot,mux-autoprobe")) {
> +		if (dev_read_bool(dev, "u-boot,mux-autoprobe") ||
> +		    dev_read_bool(dev, "idle-states")) {
>  			ret = device_probe(dev);
>  			if (ret)
>  				log_debug("unable to probe device %s\n",

I would just drop "u-boot,mux-autoprobe" as TI platforms are the only
users of this uclass and mmio driver, iirc.

-- 
Tom

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[PATCH 5/5] configs/j721e_beagleboneai64_a72_defconfig: Enable Sierra PHY

[Roger Quadros]

This is required for USB Super-Speed operation.

Signed-off-by: Roger Quadros <rogerq@kernel.org>
---
 configs/j721e_beagleboneai64_a72_defconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/configs/j721e_beagleboneai64_a72_defconfig b/configs/j721e_beagleboneai64_a72_defconfig
index 959f86844d..f66206f6e3 100644
--- a/configs/j721e_beagleboneai64_a72_defconfig
+++ b/configs/j721e_beagleboneai64_a72_defconfig
@@ -127,6 +127,8 @@ CONFIG_PHY_TI_DP83867=y
 CONFIG_PHY_FIXED=y
 CONFIG_TI_AM65_CPSW_NUSS=y
 CONFIG_PHY=y
+CONFIG_PHY_J721E_WIZ=y
+CONFIG_PHY_CADENCE_SIERRA=y
 CONFIG_SPL_PHY=y
 CONFIG_PINCTRL=y
 # CONFIG_PINCTRL_GENERIC is not set
-- 
2.34.1

Re: [PATCH 0/5] k3-j721e: beagleboneai: Fix USB

[Tom Rini]

On Fri, 12 Jan 2024 14:49:46 +0200, Roger Quadros wrote:

> This series fixes USB operation on k3-j721e based boards.
> 
> CI testing: https://github.com/u-boot/u-boot/pull/468
> 
> cheers,
> -roger
> 
> [...]

Applied to u-boot/master, thanks!

-- 
Tom