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* [PATCH 1/3] ARM: dts: cyclone5: Add stmmac ptp_ref clock
@ 2019-05-15 16:20 Dalon Westergreen
  2019-05-15 16:20 ` [PATCH 2/3] ARM: dts: arria10: " Dalon Westergreen
                   ` (2 more replies)
  0 siblings, 3 replies; 10+ messages in thread
From: Dalon Westergreen @ 2019-05-15 16:20 UTC (permalink / raw)
  To: dinguyen, thor.thayer, devicetree

Add the ptp_ref clock to gmac0 / gmac1 specifying the default clk
of osc1.  The stmmac driver defaults the ptp_ref clock to the main
stmmac clock if ptp_ref is not provided.  This is inappropriate for
the Cyclone5 or Arria5 devices.

Signed-off-by: Dalon Westergreen <dalon.westergreen@linux.intel.com>
---
 arch/arm/boot/dts/socfpga.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
index 28ecb4bdf5aa..c1c9d6a2bb91 100644
--- a/arch/arm/boot/dts/socfpga.dtsi
+++ b/arch/arm/boot/dts/socfpga.dtsi
@@ -557,8 +557,8 @@
 			interrupts = <0 115 4>;
 			interrupt-names = "macirq";
 			mac-address = [00 00 00 00 00 00];/* Filled in by U-Boot */
-			clocks = <&emac_0_clk>;
-			clock-names = "stmmaceth";
+			clocks = <&emac_0_clk>, <&osc1>;
+			clock-names = "stmmaceth", "ptp_ref";
 			resets = <&rst EMAC0_RESET>;
 			reset-names = "stmmaceth";
 			snps,multicast-filter-bins = <256>;
@@ -575,8 +575,8 @@
 			interrupts = <0 120 4>;
 			interrupt-names = "macirq";
 			mac-address = [00 00 00 00 00 00];/* Filled in by U-Boot */
-			clocks = <&emac_1_clk>;
-			clock-names = "stmmaceth";
+			clocks = <&emac_1_clk>, <&osc1>;
+			clock-names = "stmmaceth", "ptp_ref";
 			resets = <&rst EMAC1_RESET>;
 			reset-names = "stmmaceth";
 			snps,multicast-filter-bins = <256>;
-- 
2.19.2

^ permalink raw reply related	[flat|nested] 10+ messages in thread

* [PATCH 2/3] ARM: dts: arria10: Add stmmac ptp_ref clock
  2019-05-15 16:20 [PATCH 1/3] ARM: dts: cyclone5: Add stmmac ptp_ref clock Dalon Westergreen
@ 2019-05-15 16:20 ` Dalon Westergreen
  2019-05-20 16:10   ` Thor Thayer
  2019-05-15 16:20 ` [PATCH 3/3] ARM64: dts: stratix10: " Dalon Westergreen
  2019-05-20 16:09 ` [PATCH 1/3] ARM: dts: cyclone5: " Thor Thayer
  2 siblings, 1 reply; 10+ messages in thread
From: Dalon Westergreen @ 2019-05-15 16:20 UTC (permalink / raw)
  To: dinguyen, thor.thayer, devicetree

Add the default stmmac ptp_ref clock for arria10.  The stmmac
driver defaults the ptp_ref clock to the main stmmac clock
if the ptp_ref clock is not set in the devicetree.  This is inappropriate
for the arria10 device.  The default ptp_ref clock is peri_emac_ptp_clk.

Signed-off-by: Dalon Westergreen <dalon.westergreen@linux.intel.com>
---
 arch/arm/boot/dts/socfpga_arria10.dtsi | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm/boot/dts/socfpga_arria10.dtsi b/arch/arm/boot/dts/socfpga_arria10.dtsi
index 0017bac7f96c..6591def7b225 100644
--- a/arch/arm/boot/dts/socfpga_arria10.dtsi
+++ b/arch/arm/boot/dts/socfpga_arria10.dtsi
@@ -426,8 +426,8 @@
 			snps,perfect-filter-entries = <128>;
 			tx-fifo-depth = <4096>;
 			rx-fifo-depth = <16384>;
-			clocks = <&l4_mp_clk>;
-			clock-names = "stmmaceth";
+			clocks = <&l4_mp_clk>, <&peri_emac_ptp_clk>;
+			clock-names = "stmmaceth", "ptp_ref";
 			resets = <&rst EMAC0_RESET>;
 			reset-names = "stmmaceth";
 			snps,axi-config = <&socfpga_axi_setup>;
@@ -446,8 +446,8 @@
 			snps,perfect-filter-entries = <128>;
 			tx-fifo-depth = <4096>;
 			rx-fifo-depth = <16384>;
-			clocks = <&l4_mp_clk>;
-			clock-names = "stmmaceth";
+			clocks = <&l4_mp_clk>, <&peri_emac_ptp_clk>;
+			clock-names = "stmmaceth", "ptp_ref";
 			resets = <&rst EMAC1_RESET>;
 			reset-names = "stmmaceth";
 			snps,axi-config = <&socfpga_axi_setup>;
@@ -466,8 +466,8 @@
 			snps,perfect-filter-entries = <128>;
 			tx-fifo-depth = <4096>;
 			rx-fifo-depth = <16384>;
-			clocks = <&l4_mp_clk>;
-			clock-names = "stmmaceth";
+			clocks = <&l4_mp_clk>, <&peri_emac_ptp_clk>;
+			clock-names = "stmmaceth", "ptp_ref";
 			snps,axi-config = <&socfpga_axi_setup>;
 			status = "disabled";
 		};
-- 
2.19.2

^ permalink raw reply related	[flat|nested] 10+ messages in thread

* [PATCH 3/3] ARM64: dts: stratix10: Add stmmac ptp_ref clock
  2019-05-15 16:20 [PATCH 1/3] ARM: dts: cyclone5: Add stmmac ptp_ref clock Dalon Westergreen
  2019-05-15 16:20 ` [PATCH 2/3] ARM: dts: arria10: " Dalon Westergreen
@ 2019-05-15 16:20 ` Dalon Westergreen
  2019-05-20 16:39   ` Thor Thayer
  2019-05-20 16:09 ` [PATCH 1/3] ARM: dts: cyclone5: " Thor Thayer
  2 siblings, 1 reply; 10+ messages in thread
From: Dalon Westergreen @ 2019-05-15 16:20 UTC (permalink / raw)
  To: dinguyen, thor.thayer, devicetree

Add the default stmmac ptp_ref clock for stratix10.  The stmmac
driver defaults the ptp_ref clock to the main stmmac clock
if the ptp_ref clock is not set in the devicetree.  This is
inappropriate for the stratix10.  The default ptp_ref clock is
STRATIX10_PERI_EMAC_PTP_CLK in the clock manager.

Signed-off-by: Dalon Westergreen <dalon.westergreen@linux.intel.com>
---
 arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
index adedd563125a..f464e7ba3402 100644
--- a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
+++ b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
@@ -160,8 +160,8 @@
 			mac-address = [00 00 00 00 00 00];
 			resets = <&rst EMAC0_RESET>, <&rst EMAC0_OCP_RESET>;
 			reset-names = "stmmaceth", "stmmaceth-ocp";
-			clocks = <&clkmgr STRATIX10_EMAC0_CLK>;
-			clock-names = "stmmaceth";
+			clocks = <&clkmgr STRATIX10_EMAC0_CLK>, <&clkmgr STRATIX10_PERI_EMAC_PTP_CLK>;
+			clock-names = "stmmaceth", "ptp_ref";
 			tx-fifo-depth = <16384>;
 			rx-fifo-depth = <16384>;
 			snps,multicast-filter-bins = <256>;
@@ -176,8 +176,8 @@
 			mac-address = [00 00 00 00 00 00];
 			resets = <&rst EMAC1_RESET>, <&rst EMAC1_OCP_RESET>;
 			reset-names = "stmmaceth", "stmmaceth-ocp";
-			clocks = <&clkmgr STRATIX10_EMAC1_CLK>;
-			clock-names = "stmmaceth";
+			clocks = <&clkmgr STRATIX10_EMAC1_CLK>, <&clkmgr STRATIX10_PERI_EMAC_PTP_CLK>;
+			clock-names = "stmmaceth", "ptp_ref";
 			tx-fifo-depth = <16384>;
 			rx-fifo-depth = <16384>;
 			snps,multicast-filter-bins = <256>;
@@ -192,8 +192,8 @@
 			mac-address = [00 00 00 00 00 00];
 			resets = <&rst EMAC2_RESET>, <&rst EMAC2_OCP_RESET>;
 			reset-names = "stmmaceth", "stmmaceth-ocp";
-			clocks = <&clkmgr STRATIX10_EMAC2_CLK>;
-			clock-names = "stmmaceth";
+			clocks = <&clkmgr STRATIX10_EMAC2_CLK>, <&clkmgr STRATIX10_PERI_EMAC_PTP_CLK>;
+			clock-names = "stmmaceth", "ptp_ref";
 			tx-fifo-depth = <16384>;
 			rx-fifo-depth = <16384>;
 			snps,multicast-filter-bins = <256>;
-- 
2.19.2

^ permalink raw reply related	[flat|nested] 10+ messages in thread

* Re: [PATCH 1/3] ARM: dts: cyclone5: Add stmmac ptp_ref clock
  2019-05-15 16:20 [PATCH 1/3] ARM: dts: cyclone5: Add stmmac ptp_ref clock Dalon Westergreen
  2019-05-15 16:20 ` [PATCH 2/3] ARM: dts: arria10: " Dalon Westergreen
  2019-05-15 16:20 ` [PATCH 3/3] ARM64: dts: stratix10: " Dalon Westergreen
@ 2019-05-20 16:09 ` Thor Thayer
  2 siblings, 0 replies; 10+ messages in thread
From: Thor Thayer @ 2019-05-20 16:09 UTC (permalink / raw)
  To: Dalon Westergreen, dinguyen, devicetree

On 5/15/19 11:20 AM, Dalon Westergreen wrote:
> Add the ptp_ref clock to gmac0 / gmac1 specifying the default clk
> of osc1.  The stmmac driver defaults the ptp_ref clock to the main
> stmmac clock if ptp_ref is not provided.  This is inappropriate for
> the Cyclone5 or Arria5 devices.
> 
> Signed-off-by: Dalon Westergreen <dalon.westergreen@linux.intel.com>
> ---
>   arch/arm/boot/dts/socfpga.dtsi | 8 ++++----
>   1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
> index 28ecb4bdf5aa..c1c9d6a2bb91 100644
> --- a/arch/arm/boot/dts/socfpga.dtsi
> +++ b/arch/arm/boot/dts/socfpga.dtsi
> @@ -557,8 +557,8 @@
>   			interrupts = <0 115 4>;
>   			interrupt-names = "macirq";
>   			mac-address = [00 00 00 00 00 00];/* Filled in by U-Boot */
> -			clocks = <&emac_0_clk>;
> -			clock-names = "stmmaceth";
> +			clocks = <&emac_0_clk>, <&osc1>;
> +			clock-names = "stmmaceth", "ptp_ref";
>   			resets = <&rst EMAC0_RESET>;
>   			reset-names = "stmmaceth";
>   			snps,multicast-filter-bins = <256>;
> @@ -575,8 +575,8 @@
>   			interrupts = <0 120 4>;
>   			interrupt-names = "macirq";
>   			mac-address = [00 00 00 00 00 00];/* Filled in by U-Boot */
> -			clocks = <&emac_1_clk>;
> -			clock-names = "stmmaceth";
> +			clocks = <&emac_1_clk>, <&osc1>;
> +			clock-names = "stmmaceth", "ptp_ref";
>   			resets = <&rst EMAC1_RESET>;
>   			reset-names = "stmmaceth";
>   			snps,multicast-filter-bins = <256>;
> 
Reviewed-by: Thor Thayer <thor.thayer@linux.intel.com>

^ permalink raw reply	[flat|nested] 10+ messages in thread

* Re: [PATCH 2/3] ARM: dts: arria10: Add stmmac ptp_ref clock
  2019-05-15 16:20 ` [PATCH 2/3] ARM: dts: arria10: " Dalon Westergreen
@ 2019-05-20 16:10   ` Thor Thayer
  0 siblings, 0 replies; 10+ messages in thread
From: Thor Thayer @ 2019-05-20 16:10 UTC (permalink / raw)
  To: Dalon Westergreen, dinguyen, devicetree

On 5/15/19 11:20 AM, Dalon Westergreen wrote:
> Add the default stmmac ptp_ref clock for arria10.  The stmmac
> driver defaults the ptp_ref clock to the main stmmac clock
> if the ptp_ref clock is not set in the devicetree.  This is inappropriate
> for the arria10 device.  The default ptp_ref clock is peri_emac_ptp_clk.
> 
> Signed-off-by: Dalon Westergreen <dalon.westergreen@linux.intel.com>
> ---
>   arch/arm/boot/dts/socfpga_arria10.dtsi | 12 ++++++------
>   1 file changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/socfpga_arria10.dtsi b/arch/arm/boot/dts/socfpga_arria10.dtsi
> index 0017bac7f96c..6591def7b225 100644
> --- a/arch/arm/boot/dts/socfpga_arria10.dtsi
> +++ b/arch/arm/boot/dts/socfpga_arria10.dtsi
> @@ -426,8 +426,8 @@
>   			snps,perfect-filter-entries = <128>;
>   			tx-fifo-depth = <4096>;
>   			rx-fifo-depth = <16384>;
> -			clocks = <&l4_mp_clk>;
> -			clock-names = "stmmaceth";
> +			clocks = <&l4_mp_clk>, <&peri_emac_ptp_clk>;
> +			clock-names = "stmmaceth", "ptp_ref";
>   			resets = <&rst EMAC0_RESET>;
>   			reset-names = "stmmaceth";
>   			snps,axi-config = <&socfpga_axi_setup>;
> @@ -446,8 +446,8 @@
>   			snps,perfect-filter-entries = <128>;
>   			tx-fifo-depth = <4096>;
>   			rx-fifo-depth = <16384>;
> -			clocks = <&l4_mp_clk>;
> -			clock-names = "stmmaceth";
> +			clocks = <&l4_mp_clk>, <&peri_emac_ptp_clk>;
> +			clock-names = "stmmaceth", "ptp_ref";
>   			resets = <&rst EMAC1_RESET>;
>   			reset-names = "stmmaceth";
>   			snps,axi-config = <&socfpga_axi_setup>;
> @@ -466,8 +466,8 @@
>   			snps,perfect-filter-entries = <128>;
>   			tx-fifo-depth = <4096>;
>   			rx-fifo-depth = <16384>;
> -			clocks = <&l4_mp_clk>;
> -			clock-names = "stmmaceth";
> +			clocks = <&l4_mp_clk>, <&peri_emac_ptp_clk>;
> +			clock-names = "stmmaceth", "ptp_ref";
>   			snps,axi-config = <&socfpga_axi_setup>;
>   			status = "disabled";
>   		};
> 

Reviewed-by: Thor Thayer <thor.thayer@linux.intel.com>

^ permalink raw reply	[flat|nested] 10+ messages in thread

* Re: [PATCH 3/3] ARM64: dts: stratix10: Add stmmac ptp_ref clock
  2019-05-15 16:20 ` [PATCH 3/3] ARM64: dts: stratix10: " Dalon Westergreen
@ 2019-05-20 16:39   ` Thor Thayer
  2019-05-21 13:09     ` Dalon L Westergreen
  0 siblings, 1 reply; 10+ messages in thread
From: Thor Thayer @ 2019-05-20 16:39 UTC (permalink / raw)
  To: Dalon Westergreen, dinguyen, devicetree

On 5/15/19 11:20 AM, Dalon Westergreen wrote:
> Add the default stmmac ptp_ref clock for stratix10.  The stmmac
> driver defaults the ptp_ref clock to the main stmmac clock
> if the ptp_ref clock is not set in the devicetree.  This is
> inappropriate for the stratix10.  The default ptp_ref clock is
> STRATIX10_PERI_EMAC_PTP_CLK in the clock manager.
> 
> Signed-off-by: Dalon Westergreen <dalon.westergreen@linux.intel.com>
> ---
>   arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi | 12 ++++++------
>   1 file changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
> index adedd563125a..f464e7ba3402 100644
> --- a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
> +++ b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
> @@ -160,8 +160,8 @@
>   			mac-address = [00 00 00 00 00 00];
>   			resets = <&rst EMAC0_RESET>, <&rst EMAC0_OCP_RESET>;
>   			reset-names = "stmmaceth", "stmmaceth-ocp";
> -			clocks = <&clkmgr STRATIX10_EMAC0_CLK>;
> -			clock-names = "stmmaceth";
> +			clocks = <&clkmgr STRATIX10_EMAC0_CLK>, <&clkmgr STRATIX10_PERI_EMAC_PTP_CLK>;
> +			clock-names = "stmmaceth", "ptp_ref";
>   			tx-fifo-depth = <16384>;
>   			rx-fifo-depth = <16384>;
>   			snps,multicast-filter-bins = <256>;
> @@ -176,8 +176,8 @@
>   			mac-address = [00 00 00 00 00 00];
>   			resets = <&rst EMAC1_RESET>, <&rst EMAC1_OCP_RESET>;
>   			reset-names = "stmmaceth", "stmmaceth-ocp";
> -			clocks = <&clkmgr STRATIX10_EMAC1_CLK>;
> -			clock-names = "stmmaceth";
> +			clocks = <&clkmgr STRATIX10_EMAC1_CLK>, <&clkmgr STRATIX10_PERI_EMAC_PTP_CLK>;
> +			clock-names = "stmmaceth", "ptp_ref";
>   			tx-fifo-depth = <16384>;
>   			rx-fifo-depth = <16384>;
>   			snps,multicast-filter-bins = <256>;
> @@ -192,8 +192,8 @@
>   			mac-address = [00 00 00 00 00 00];
>   			resets = <&rst EMAC2_RESET>, <&rst EMAC2_OCP_RESET>;
>   			reset-names = "stmmaceth", "stmmaceth-ocp";
> -			clocks = <&clkmgr STRATIX10_EMAC2_CLK>;
> -			clock-names = "stmmaceth";
> +			clocks = <&clkmgr STRATIX10_EMAC2_CLK>, <&clkmgr STRATIX10_PERI_EMAC_PTP_CLK>;
> +			clock-names = "stmmaceth", "ptp_ref";
>   			tx-fifo-depth = <16384>;
>   			rx-fifo-depth = <16384>;
>   			snps,multicast-filter-bins = <256>;
> 

Should STRATIX10_EMAC_PTP_CLK be used instead of 
STRATIX10_PERI_EMAC_PTP_CLK since this is the gate of the clkgmr?

^ permalink raw reply	[flat|nested] 10+ messages in thread

* Re: [PATCH 3/3] ARM64: dts: stratix10: Add stmmac ptp_ref clock
  2019-05-20 16:39   ` Thor Thayer
@ 2019-05-21 13:09     ` Dalon L Westergreen
  2019-05-21 20:27       ` Dinh Nguyen
  0 siblings, 1 reply; 10+ messages in thread
From: Dalon L Westergreen @ 2019-05-21 13:09 UTC (permalink / raw)
  To: thor.thayer, dinguyen, devicetree

On Mon, 2019-05-20 at 11:39 -0500, Thor Thayer wrote:
> On 5/15/19 11:20 AM, Dalon Westergreen wrote:
> > Add the default stmmac ptp_ref clock for stratix10.  The stmmac
> > driver defaults the ptp_ref clock to the main stmmac clock
> > if the ptp_ref clock is not set in the devicetree.  This is
> > inappropriate for the stratix10.  The default ptp_ref clock is
> > STRATIX10_PERI_EMAC_PTP_CLK in the clock manager.
> > 
> > Signed-off-by: Dalon Westergreen <
> > dalon.westergreen@linux.intel.com
> > >
> > ---
> >   arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi | 12 ++++++------
> >   1 file changed, 6 insertions(+), 6 deletions(-)
> > 
> > diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
> > b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
> > index adedd563125a..f464e7ba3402 100644
> > --- a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
> > +++ b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
> > @@ -160,8 +160,8 @@
> >   			mac-address = [00 00 00 00 00 00];
> >   			resets = <&rst EMAC0_RESET>, <&rst EMAC0_OCP_RESET>;
> >   			reset-names = "stmmaceth", "stmmaceth-ocp";
> > -			clocks = <&clkmgr STRATIX10_EMAC0_CLK>;
> > -			clock-names = "stmmaceth";
> > +			clocks = <&clkmgr STRATIX10_EMAC0_CLK>, <&clkmgr
> > STRATIX10_PERI_EMAC_PTP_CLK>;
> > +			clock-names = "stmmaceth", "ptp_ref";
> >   			tx-fifo-depth = <16384>;
> >   			rx-fifo-depth = <16384>;
> >   			snps,multicast-filter-bins = <256>;
> > @@ -176,8 +176,8 @@
> >   			mac-address = [00 00 00 00 00 00];
> >   			resets = <&rst EMAC1_RESET>, <&rst EMAC1_OCP_RESET>;
> >   			reset-names = "stmmaceth", "stmmaceth-ocp";
> > -			clocks = <&clkmgr STRATIX10_EMAC1_CLK>;
> > -			clock-names = "stmmaceth";
> > +			clocks = <&clkmgr STRATIX10_EMAC1_CLK>, <&clkmgr
> > STRATIX10_PERI_EMAC_PTP_CLK>;
> > +			clock-names = "stmmaceth", "ptp_ref";
> >   			tx-fifo-depth = <16384>;
> >   			rx-fifo-depth = <16384>;
> >   			snps,multicast-filter-bins = <256>;
> > @@ -192,8 +192,8 @@
> >   			mac-address = [00 00 00 00 00 00];
> >   			resets = <&rst EMAC2_RESET>, <&rst EMAC2_OCP_RESET>;
> >   			reset-names = "stmmaceth", "stmmaceth-ocp";
> > -			clocks = <&clkmgr STRATIX10_EMAC2_CLK>;
> > -			clock-names = "stmmaceth";
> > +			clocks = <&clkmgr STRATIX10_EMAC2_CLK>, <&clkmgr
> > STRATIX10_PERI_EMAC_PTP_CLK>;
> > +			clock-names = "stmmaceth", "ptp_ref";
> >   			tx-fifo-depth = <16384>;
> >   			rx-fifo-depth = <16384>;
> >   			snps,multicast-filter-bins = <256>;
> > 
> 
> Should STRATIX10_EMAC_PTP_CLK be used instead of 
> STRATIX10_PERI_EMAC_PTP_CLK since this is the gate of the clkgmr?
> 

Either can be used, but the default in the hps configuration is the
peripheral pll output and not the main pll output.

--dalon

^ permalink raw reply	[flat|nested] 10+ messages in thread

* Re: [PATCH 3/3] ARM64: dts: stratix10: Add stmmac ptp_ref clock
  2019-05-21 13:09     ` Dalon L Westergreen
@ 2019-05-21 20:27       ` Dinh Nguyen
  2019-05-22 14:47         ` Dalon L Westergreen
  0 siblings, 1 reply; 10+ messages in thread
From: Dinh Nguyen @ 2019-05-21 20:27 UTC (permalink / raw)
  To: dalon.westergreen, thor.thayer, devicetree



On 5/21/19 8:09 AM, Dalon L Westergreen wrote:
> On Mon, 2019-05-20 at 11:39 -0500, Thor Thayer wrote:
>> On 5/15/19 11:20 AM, Dalon Westergreen wrote:
>>> Add the default stmmac ptp_ref clock for stratix10.  The stmmac
>>> driver defaults the ptp_ref clock to the main stmmac clock
>>> if the ptp_ref clock is not set in the devicetree.  This is
>>> inappropriate for the stratix10.  The default ptp_ref clock is
>>> STRATIX10_PERI_EMAC_PTP_CLK in the clock manager.
>>>
>>> Signed-off-by: Dalon Westergreen <
>>> dalon.westergreen@linux.intel.com
>>>>
>>> ---
>>>   arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi | 12 ++++++------
>>>   1 file changed, 6 insertions(+), 6 deletions(-)
>>>
>>> diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
>>> b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
>>> index adedd563125a..f464e7ba3402 100644
>>> --- a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
>>> +++ b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
>>> @@ -160,8 +160,8 @@
>>>   			mac-address = [00 00 00 00 00 00];
>>>   			resets = <&rst EMAC0_RESET>, <&rst EMAC0_OCP_RESET>;
>>>   			reset-names = "stmmaceth", "stmmaceth-ocp";
>>> -			clocks = <&clkmgr STRATIX10_EMAC0_CLK>;
>>> -			clock-names = "stmmaceth";
>>> +			clocks = <&clkmgr STRATIX10_EMAC0_CLK>, <&clkmgr
>>> STRATIX10_PERI_EMAC_PTP_CLK>;
>>> +			clock-names = "stmmaceth", "ptp_ref";
>>>   			tx-fifo-depth = <16384>;
>>>   			rx-fifo-depth = <16384>;
>>>   			snps,multicast-filter-bins = <256>;
>>> @@ -176,8 +176,8 @@
>>>   			mac-address = [00 00 00 00 00 00];
>>>   			resets = <&rst EMAC1_RESET>, <&rst EMAC1_OCP_RESET>;
>>>   			reset-names = "stmmaceth", "stmmaceth-ocp";
>>> -			clocks = <&clkmgr STRATIX10_EMAC1_CLK>;
>>> -			clock-names = "stmmaceth";
>>> +			clocks = <&clkmgr STRATIX10_EMAC1_CLK>, <&clkmgr
>>> STRATIX10_PERI_EMAC_PTP_CLK>;
>>> +			clock-names = "stmmaceth", "ptp_ref";
>>>   			tx-fifo-depth = <16384>;
>>>   			rx-fifo-depth = <16384>;
>>>   			snps,multicast-filter-bins = <256>;
>>> @@ -192,8 +192,8 @@
>>>   			mac-address = [00 00 00 00 00 00];
>>>   			resets = <&rst EMAC2_RESET>, <&rst EMAC2_OCP_RESET>;
>>>   			reset-names = "stmmaceth", "stmmaceth-ocp";
>>> -			clocks = <&clkmgr STRATIX10_EMAC2_CLK>;
>>> -			clock-names = "stmmaceth";
>>> +			clocks = <&clkmgr STRATIX10_EMAC2_CLK>, <&clkmgr
>>> STRATIX10_PERI_EMAC_PTP_CLK>;
>>> +			clock-names = "stmmaceth", "ptp_ref";
>>>   			tx-fifo-depth = <16384>;
>>>   			rx-fifo-depth = <16384>;
>>>   			snps,multicast-filter-bins = <256>;
>>>
>>
>> Should STRATIX10_EMAC_PTP_CLK be used instead of 
>> STRATIX10_PERI_EMAC_PTP_CLK since this is the gate of the clkgmr?
>>
> 
> Either can be used, but the default in the hps configuration is the
> peripheral pll output and not the main pll output.
> 

I think it should be the emac_ptp_clk. If you look at the clock tree,
the emac_ptp_clk(50 MHz) and is derived from the peri_emac_ptp_clk(200
MHz).

You can look at the clock tree by doing a 'cat
/sys/kernel/debug/clk/clk_summary'.

Dinh

^ permalink raw reply	[flat|nested] 10+ messages in thread

* Re: [PATCH 3/3] ARM64: dts: stratix10: Add stmmac ptp_ref clock
  2019-05-21 20:27       ` Dinh Nguyen
@ 2019-05-22 14:47         ` Dalon L Westergreen
  0 siblings, 0 replies; 10+ messages in thread
From: Dalon L Westergreen @ 2019-05-22 14:47 UTC (permalink / raw)
  To: Dinh Nguyen, thor.thayer, devicetree

On Tue, 2019-05-21 at 15:27 -0500, Dinh Nguyen wrote:
> 
> On 5/21/19 8:09 AM, Dalon L Westergreen wrote:
> > On Mon, 2019-05-20 at 11:39 -0500, Thor Thayer wrote:
> > > On 5/15/19 11:20 AM, Dalon Westergreen wrote:
> > > > Add the default stmmac ptp_ref clock for stratix10.  The stmmac
> > > > driver defaults the ptp_ref clock to the main stmmac clock
> > > > if the ptp_ref clock is not set in the devicetree.  This is
> > > > inappropriate for the stratix10.  The default ptp_ref clock is
> > > > STRATIX10_PERI_EMAC_PTP_CLK in the clock manager.
> > > > 
> > > > Signed-off-by: Dalon Westergreen <
> > > > dalon.westergreen@linux.intel.com
> > > > 
> > > > 
> > > > ---
> > > >   arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi | 12 ++++++------
> > > >   1 file changed, 6 insertions(+), 6 deletions(-)
> > > > 
> > > > diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
> > > > b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
> > > > index adedd563125a..f464e7ba3402 100644
> > > > --- a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
> > > > +++ b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
> > > > @@ -160,8 +160,8 @@
> > > >   			mac-address = [00 00 00 00 00 00];
> > > >   			resets = <&rst EMAC0_RESET>, <&rst
> > > > EMAC0_OCP_RESET>;
> > > >   			reset-names = "stmmaceth", "stmmaceth-ocp";
> > > > -			clocks = <&clkmgr STRATIX10_EMAC0_CLK>;
> > > > -			clock-names = "stmmaceth";
> > > > +			clocks = <&clkmgr STRATIX10_EMAC0_CLK>, <&clkmgr
> > > > STRATIX10_PERI_EMAC_PTP_CLK>;
> > > > +			clock-names = "stmmaceth", "ptp_ref";
> > > >   			tx-fifo-depth = <16384>;
> > > >   			rx-fifo-depth = <16384>;
> > > >   			snps,multicast-filter-bins = <256>;
> > > > @@ -176,8 +176,8 @@
> > > >   			mac-address = [00 00 00 00 00 00];
> > > >   			resets = <&rst EMAC1_RESET>, <&rst
> > > > EMAC1_OCP_RESET>;
> > > >   			reset-names = "stmmaceth", "stmmaceth-ocp";
> > > > -			clocks = <&clkmgr STRATIX10_EMAC1_CLK>;
> > > > -			clock-names = "stmmaceth";
> > > > +			clocks = <&clkmgr STRATIX10_EMAC1_CLK>, <&clkmgr
> > > > STRATIX10_PERI_EMAC_PTP_CLK>;
> > > > +			clock-names = "stmmaceth", "ptp_ref";
> > > >   			tx-fifo-depth = <16384>;
> > > >   			rx-fifo-depth = <16384>;
> > > >   			snps,multicast-filter-bins = <256>;
> > > > @@ -192,8 +192,8 @@
> > > >   			mac-address = [00 00 00 00 00 00];
> > > >   			resets = <&rst EMAC2_RESET>, <&rst
> > > > EMAC2_OCP_RESET>;
> > > >   			reset-names = "stmmaceth", "stmmaceth-ocp";
> > > > -			clocks = <&clkmgr STRATIX10_EMAC2_CLK>;
> > > > -			clock-names = "stmmaceth";
> > > > +			clocks = <&clkmgr STRATIX10_EMAC2_CLK>, <&clkmgr
> > > > STRATIX10_PERI_EMAC_PTP_CLK>;
> > > > +			clock-names = "stmmaceth", "ptp_ref";
> > > >   			tx-fifo-depth = <16384>;
> > > >   			rx-fifo-depth = <16384>;
> > > >   			snps,multicast-filter-bins = <256>;
> > > > 
> > > 
> > > Should STRATIX10_EMAC_PTP_CLK be used instead of 
> > > STRATIX10_PERI_EMAC_PTP_CLK since this is the gate of the clkgmr?
> > > 
> > 
> > Either can be used, but the default in the hps configuration is the
> > peripheral pll output and not the main pll output.
> > 
> 
> I think it should be the emac_ptp_clk. If you look at the clock tree,
> the emac_ptp_clk(50 MHz) and is derived from the peri_emac_ptp_clk(200
> MHz).
> 
> You can look at the clock tree by doing a 'cat
> /sys/kernel/debug/clk/clk_summary'.
> 
> Dinh
> 
I dont disagree, but this devicetree is a representation of what was implemented
in the devkit no?  Should we first request that this is changed in the design?
or should i set this to STRATIX10_EMAC_PTP_CLK and overide it in the top level
socdk devicetree?

dalon

^ permalink raw reply	[flat|nested] 10+ messages in thread

* [PATCH 3/3] ARM64: dts: stratix10: Add stmmac ptp_ref clock
  2018-12-13 23:03 dwesterg
@ 2018-12-13 23:03 ` dwesterg
  0 siblings, 0 replies; 10+ messages in thread
From: dwesterg @ 2018-12-13 23:03 UTC (permalink / raw)
  To: dinguyen, robh+dt, mark.rutland, devicetree, linux-kernel, thor.thayer
  Cc: Dalon Westergreen

From: Dalon Westergreen <dalon.westergreen@linux.intel.com>

Add the default stmmac ptp_ref clock for stratix10.  The stmmac
driver defaults the ptp_ref clock to the main stmmac clock
if the ptp_ref clock is not set in the devicetree.  This is
inappropriate for the stratix10.  The default ptp_ref clock is
STRATIX10_PERI_EMAC_PTP_CLK in the clock manager.

Signed-off-by: Dalon Westergreen <dalon.westergreen@linux.intel.com>
---
 arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
index adedd563125a..f464e7ba3402 100644
--- a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
+++ b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
@@ -160,8 +160,8 @@
 			mac-address = [00 00 00 00 00 00];
 			resets = <&rst EMAC0_RESET>, <&rst EMAC0_OCP_RESET>;
 			reset-names = "stmmaceth", "stmmaceth-ocp";
-			clocks = <&clkmgr STRATIX10_EMAC0_CLK>;
-			clock-names = "stmmaceth";
+			clocks = <&clkmgr STRATIX10_EMAC0_CLK>, <&clkmgr STRATIX10_PERI_EMAC_PTP_CLK>;
+			clock-names = "stmmaceth", "ptp_ref";
 			tx-fifo-depth = <16384>;
 			rx-fifo-depth = <16384>;
 			snps,multicast-filter-bins = <256>;
@@ -176,8 +176,8 @@
 			mac-address = [00 00 00 00 00 00];
 			resets = <&rst EMAC1_RESET>, <&rst EMAC1_OCP_RESET>;
 			reset-names = "stmmaceth", "stmmaceth-ocp";
-			clocks = <&clkmgr STRATIX10_EMAC1_CLK>;
-			clock-names = "stmmaceth";
+			clocks = <&clkmgr STRATIX10_EMAC1_CLK>, <&clkmgr STRATIX10_PERI_EMAC_PTP_CLK>;
+			clock-names = "stmmaceth", "ptp_ref";
 			tx-fifo-depth = <16384>;
 			rx-fifo-depth = <16384>;
 			snps,multicast-filter-bins = <256>;
@@ -192,8 +192,8 @@
 			mac-address = [00 00 00 00 00 00];
 			resets = <&rst EMAC2_RESET>, <&rst EMAC2_OCP_RESET>;
 			reset-names = "stmmaceth", "stmmaceth-ocp";
-			clocks = <&clkmgr STRATIX10_EMAC2_CLK>;
-			clock-names = "stmmaceth";
+			clocks = <&clkmgr STRATIX10_EMAC2_CLK>, <&clkmgr STRATIX10_PERI_EMAC_PTP_CLK>;
+			clock-names = "stmmaceth", "ptp_ref";
 			tx-fifo-depth = <16384>;
 			rx-fifo-depth = <16384>;
 			snps,multicast-filter-bins = <256>;
-- 
2.19.2


^ permalink raw reply related	[flat|nested] 10+ messages in thread

end of thread, other threads:[~2019-05-22 14:47 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-05-15 16:20 [PATCH 1/3] ARM: dts: cyclone5: Add stmmac ptp_ref clock Dalon Westergreen
2019-05-15 16:20 ` [PATCH 2/3] ARM: dts: arria10: " Dalon Westergreen
2019-05-20 16:10   ` Thor Thayer
2019-05-15 16:20 ` [PATCH 3/3] ARM64: dts: stratix10: " Dalon Westergreen
2019-05-20 16:39   ` Thor Thayer
2019-05-21 13:09     ` Dalon L Westergreen
2019-05-21 20:27       ` Dinh Nguyen
2019-05-22 14:47         ` Dalon L Westergreen
2019-05-20 16:09 ` [PATCH 1/3] ARM: dts: cyclone5: " Thor Thayer
  -- strict thread matches above, loose matches on Subject: below --
2018-12-13 23:03 dwesterg
2018-12-13 23:03 ` [PATCH 3/3] ARM64: dts: stratix10: " dwesterg

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