[PATCH v6 0/8] Add Ethernet driver for StarFive JH7110 SoC

[PATCH v6 0/8] Add Ethernet driver for StarFive JH7110 SoC

[Samin Guo]

This series adds ethernet support for the StarFive JH7110 RISC-V SoC.
The series includes MAC driver. The MAC version is dwmac-5.20 (from
Synopsys DesignWare). For more information and support, you can visit
RVspace wiki[1].

You can simply review or test the patches at the link [2].

This patchset should be applied after the patchset [3] [4].
[1]: https://wiki.rvspace.org/
[2]: https://github.com/SaminGuo/linux/tree/vf2-6.3rc1-gmac
[3]: https://patchwork.kernel.org/project/linux-riscv/cover/20230311090733.56918-1-hal.feng@starfivetech.com
[4]: https://github.com/SaminGuo/linux/commit/fa57aaedb3c195bab99ac351a8e44664ae819bf2

Changes since v5:
- Droped "depends on STMMAC_ETH" and compiled DWMAC_STARFIVE to m by default (by Emil)
- Removed clk_gtx in struct starfive_dwmac due to this pointer is only set, but never read. (by Emil)
- Only setting the plat_dat->fix_mac_speed callback when it is needed (by Emil)
- Moved mdio/phy nodes from SOC .dtsi into board .dtsi (by Andrew)
- Modified the parameters passed by starfive,syscon (by Andrew && Emil)
    <syscon, offset, mask>  ==>  <syscon, offset, shift>
- Optimized the patchs(Fewer patches from 12 to 8)
    1)merged patch-7 into patch-4 (by Rob)
    2)merged patch-9 into patch-5
    2)merged patch-11,12 into patch-10
    3)Adjusted the patchs order
- Fixed the unevaluatedProperties property from true to false (by Rob)
- Replaced contains:enum with items:const for reset-names in snps,dwmac.yaml (by Rob)
- Tested-by: Tommaso Merciai <tomm.merciai@gmail.com>
- Rebased on tag v6.3-rc1

Changes history:

Changes since v4:
- Supported both visionfive 2 v1.2A and visionfive 2 v1.3B.
- Reworded the maxitems number of resets property in 'snps,dwmac.yaml'.
- Suggested by Emil, dropped the _PLAT/_plat from the config/function/struct/file names.
- Suggested by Emil, added MODULE_DEVICE_TABLE().
- Suggested by Emil, dropped clk_gtxclk and use clk_tx_inv to set the clock frequency.
- Added phy interface mode configuration function.
- Rebased on tag v6.2.

Changes since v3:
- Reworded the maxitems number of resets property in 'snps,dwmac.yaml'
- Removed the unused code in 'dwmac-starfive-plat.c'.
- Reworded the return statement in 'starfive_eth_plat_fix_mac_speed' function.

Changes since v2:
- Renamed the dt-bindings 'starfive,jh71x0-dwmac.yaml' to 'starfive,jh7110-dwmac.yaml'.
- Reworded the commit messages.
- Reworded the example context in the dt-binding 'starfive,jh7110-dwmac.yaml'.
- Removed "starfive,jh7100-dwmac" compatible string and special initialization of jh7100.
- Removed the parts of YT8531,so dropped patch 5 and 6.
- Reworded the maxitems number of resets property in 'snps,dwmac.yaml'.

Changes since v1:
- Recovered the author of the 1st and 3rd patches back to Emil Renner Berthing.
- Added a new patch to update maxitems number of resets property in 'snps,dwmac.yaml'.
- Fixed the check errors reported by "make dt_binding_check".
- Renamed the dt-binding 'starfive,dwmac-plat.yaml' to 'starfive,jh71x0-dwmac.yaml'.
- Updated the example context in the dt-binding 'starfive,jh71x0-dwmac.yaml'.
- Added new dt-binding 'motorcomm,yt8531.yaml' to describe details of phy clock
  delay configuration parameters.
- Added more comments for PHY driver setting. For more details, see
  'motorcomm,yt8531.yaml'.
- Moved mdio device tree node from 'jh7110-starfive-visionfive-v2.dts' to 'jh7110.dtsi'.
- Re-worded the commit message of several patches.
- Renamed all the functions with starfive_eth_plat prefix in 'dwmac-starfive-plat.c'.
- Added "starfive,jh7100-dwmac" compatible string and special init to support JH7100.

Previous versions:
v1 - https://patchwork.kernel.org/project/linux-riscv/cover/20221201090242.2381-1-yanhong.wang@starfivetech.com/
v2 - https://patchwork.kernel.org/project/linux-riscv/cover/20221216070632.11444-1-yanhong.wang@starfivetech.com/
v3 - https://patchwork.kernel.org/project/linux-riscv/cover/20230106030001.1952-1-yanhong.wang@starfivetech.com/
v4 - https://patchwork.kernel.org/project/linux-riscv/cover/20230118061701.30047-1-yanhong.wang@starfivetech.com/
v5 - https://patchwork.kernel.org/project/netdevbpf/cover/20230303085928.4535-1-samin.guo@starfivetech.com/


Emil Renner Berthing (2):
  dt-bindings: net: snps,dwmac: Add dwmac-5.20 version
  net: stmmac: platform: Add snps,dwmac-5.20 IP compatible string

Samin Guo (5):
  dt-bindings: net: snps,dwmac: Add 'ahb' reset/reset-name
  net: stmmac: Add glue layer for StarFive JH7110 SoC
  net: stmmac: starfive_dmac: Add phy interface settings
  riscv: dts: starfive: jh7110: Add ethernet device nodes
  riscv: dts: starfive: visionfive 2: Add configuration of gmac and phy

Yanhong Wang (1):
  dt-bindings: net: Add support StarFive dwmac

 .../devicetree/bindings/net/snps,dwmac.yaml   |  17 +-
 .../bindings/net/starfive,jh7110-dwmac.yaml   | 130 ++++++++++++++
 MAINTAINERS                                   |   7 +
 .../jh7110-starfive-visionfive-2-v1.2a.dts    |  13 ++
 .../jh7110-starfive-visionfive-2-v1.3b.dts    |  27 +++
 .../jh7110-starfive-visionfive-2.dtsi         |  32 ++++
 arch/riscv/boot/dts/starfive/jh7110.dtsi      |  69 +++++++
 drivers/net/ethernet/stmicro/stmmac/Kconfig   |  12 ++
 drivers/net/ethernet/stmicro/stmmac/Makefile  |   1 +
 .../ethernet/stmicro/stmmac/dwmac-starfive.c  | 168 ++++++++++++++++++
 .../ethernet/stmicro/stmmac/stmmac_platform.c |   3 +-
 11 files changed, 474 insertions(+), 5 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
 create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c


base-commit: 8ca09d5fa3549d142c2080a72a4c70ce389163cd
prerequisite-patch-id: 46cc850aa0e9e03ccf5ed23d8458babfca3d71af
prerequisite-patch-id: a6975e61ee5803fbd74b1c21ab925fd81c3c0eab
prerequisite-patch-id: ac150a8c622e858e088df8121093d448df49c245
prerequisite-patch-id: 044263ef2fb9f1e5a586edbf85d5f67814a28430
prerequisite-patch-id: 89f049f951e5acf75aab92541992f816fd0acc0d
prerequisite-patch-id: 9f3dbc9073eee89134e68977e941e457593c2757
prerequisite-patch-id: 8600b156a235be2b3db53be3f834e7a370e2cfb9
prerequisite-patch-id: 1b2d0982b18da060c82134f05bf3ce16425bac8d
prerequisite-patch-id: 090ba4b78d47bc19204916e76fdbc70021785388
prerequisite-patch-id: a5d9e0f7d4f8163f566678894cf693015119f2d9
prerequisite-patch-id: 4c12d958e3a3d629d86dddb1e4f099d8909393e0
prerequisite-patch-id: bb939c0c7c26b08addfccd890f9d3974b6eaec53
prerequisite-patch-id: 8f5c66dfb14403424044192f6fa05b347ad356a7
prerequisite-patch-id: fd93763b95469912bde9bdfa4cd827c8d5dba9c6
prerequisite-patch-id: 6987950c2eb4b3773b2df8f7934eff434244aeab
prerequisite-patch-id: 258ea5f9b8bf41b6981345dcc81795f25865d38f
prerequisite-patch-id: 8b6f2c9660c0ac0ee4e73e4c21aca8e6b75e81b9
prerequisite-patch-id: dbb0c0151b8bdf093e6ce79fd2fe3f60791a6e0b
prerequisite-patch-id: e7773c977a7b37692e9792b21cc4f17fa58f9215
prerequisite-patch-id: d57e95d31686772abc4c4d5aa1cadc344dc293cd
prerequisite-patch-id: 9f911969d0a550648493952c99096d26e05d4d83
prerequisite-patch-id: 1be0fb49e0fbe293ca8fa94601e191b13c8c67d9
prerequisite-patch-id: a8340aa3403658e8275d0da0038c2d49bc79843a
--
2.17.1

[PATCH v6 0/8] Add Ethernet driver for StarFive JH7110 SoC

[Samin Guo]

This series adds ethernet support for the StarFive JH7110 RISC-V SoC.
The series includes MAC driver. The MAC version is dwmac-5.20 (from
Synopsys DesignWare). For more information and support, you can visit
RVspace wiki[1].

You can simply review or test the patches at the link [2].

This patchset should be applied after the patchset [3] [4].
[1]: https://wiki.rvspace.org/
[2]: https://github.com/SaminGuo/linux/tree/vf2-6.3rc1-gmac
[3]: https://patchwork.kernel.org/project/linux-riscv/cover/20230311090733.56918-1-hal.feng@starfivetech.com
[4]: https://github.com/SaminGuo/linux/commit/fa57aaedb3c195bab99ac351a8e44664ae819bf2

Changes since v5:
- Droped "depends on STMMAC_ETH" and compiled DWMAC_STARFIVE to m by default (by Emil)
- Removed clk_gtx in struct starfive_dwmac due to this pointer is only set, but never read. (by Emil)
- Only setting the plat_dat->fix_mac_speed callback when it is needed (by Emil)
- Moved mdio/phy nodes from SOC .dtsi into board .dtsi (by Andrew)
- Modified the parameters passed by starfive,syscon (by Andrew && Emil)
    <syscon, offset, mask>  ==>  <syscon, offset, shift>
- Optimized the patchs(Fewer patches from 12 to 8)
    1)merged patch-7 into patch-4 (by Rob)
    2)merged patch-9 into patch-5
    2)merged patch-11,12 into patch-10
    3)Adjusted the patchs order
- Fixed the unevaluatedProperties property from true to false (by Rob)
- Replaced contains:enum with items:const for reset-names in snps,dwmac.yaml (by Rob)
- Tested-by: Tommaso Merciai <tomm.merciai@gmail.com>
- Rebased on tag v6.3-rc1

Changes history:

Changes since v4:
- Supported both visionfive 2 v1.2A and visionfive 2 v1.3B.
- Reworded the maxitems number of resets property in 'snps,dwmac.yaml'.
- Suggested by Emil, dropped the _PLAT/_plat from the config/function/struct/file names.
- Suggested by Emil, added MODULE_DEVICE_TABLE().
- Suggested by Emil, dropped clk_gtxclk and use clk_tx_inv to set the clock frequency.
- Added phy interface mode configuration function.
- Rebased on tag v6.2.

Changes since v3:
- Reworded the maxitems number of resets property in 'snps,dwmac.yaml'
- Removed the unused code in 'dwmac-starfive-plat.c'.
- Reworded the return statement in 'starfive_eth_plat_fix_mac_speed' function.

Changes since v2:
- Renamed the dt-bindings 'starfive,jh71x0-dwmac.yaml' to 'starfive,jh7110-dwmac.yaml'.
- Reworded the commit messages.
- Reworded the example context in the dt-binding 'starfive,jh7110-dwmac.yaml'.
- Removed "starfive,jh7100-dwmac" compatible string and special initialization of jh7100.
- Removed the parts of YT8531,so dropped patch 5 and 6.
- Reworded the maxitems number of resets property in 'snps,dwmac.yaml'.

Changes since v1:
- Recovered the author of the 1st and 3rd patches back to Emil Renner Berthing.
- Added a new patch to update maxitems number of resets property in 'snps,dwmac.yaml'.
- Fixed the check errors reported by "make dt_binding_check".
- Renamed the dt-binding 'starfive,dwmac-plat.yaml' to 'starfive,jh71x0-dwmac.yaml'.
- Updated the example context in the dt-binding 'starfive,jh71x0-dwmac.yaml'.
- Added new dt-binding 'motorcomm,yt8531.yaml' to describe details of phy clock
  delay configuration parameters.
- Added more comments for PHY driver setting. For more details, see
  'motorcomm,yt8531.yaml'.
- Moved mdio device tree node from 'jh7110-starfive-visionfive-v2.dts' to 'jh7110.dtsi'.
- Re-worded the commit message of several patches.
- Renamed all the functions with starfive_eth_plat prefix in 'dwmac-starfive-plat.c'.
- Added "starfive,jh7100-dwmac" compatible string and special init to support JH7100.

Previous versions:
v1 - https://patchwork.kernel.org/project/linux-riscv/cover/20221201090242.2381-1-yanhong.wang@starfivetech.com/
v2 - https://patchwork.kernel.org/project/linux-riscv/cover/20221216070632.11444-1-yanhong.wang@starfivetech.com/
v3 - https://patchwork.kernel.org/project/linux-riscv/cover/20230106030001.1952-1-yanhong.wang@starfivetech.com/
v4 - https://patchwork.kernel.org/project/linux-riscv/cover/20230118061701.30047-1-yanhong.wang@starfivetech.com/
v5 - https://patchwork.kernel.org/project/netdevbpf/cover/20230303085928.4535-1-samin.guo@starfivetech.com/


Emil Renner Berthing (2):
  dt-bindings: net: snps,dwmac: Add dwmac-5.20 version
  net: stmmac: platform: Add snps,dwmac-5.20 IP compatible string

Samin Guo (5):
  dt-bindings: net: snps,dwmac: Add 'ahb' reset/reset-name
  net: stmmac: Add glue layer for StarFive JH7110 SoC
  net: stmmac: starfive_dmac: Add phy interface settings
  riscv: dts: starfive: jh7110: Add ethernet device nodes
  riscv: dts: starfive: visionfive 2: Add configuration of gmac and phy

Yanhong Wang (1):
  dt-bindings: net: Add support StarFive dwmac

 .../devicetree/bindings/net/snps,dwmac.yaml   |  17 +-
 .../bindings/net/starfive,jh7110-dwmac.yaml   | 130 ++++++++++++++
 MAINTAINERS                                   |   7 +
 .../jh7110-starfive-visionfive-2-v1.2a.dts    |  13 ++
 .../jh7110-starfive-visionfive-2-v1.3b.dts    |  27 +++
 .../jh7110-starfive-visionfive-2.dtsi         |  32 ++++
 arch/riscv/boot/dts/starfive/jh7110.dtsi      |  69 +++++++
 drivers/net/ethernet/stmicro/stmmac/Kconfig   |  12 ++
 drivers/net/ethernet/stmicro/stmmac/Makefile  |   1 +
 .../ethernet/stmicro/stmmac/dwmac-starfive.c  | 168 ++++++++++++++++++
 .../ethernet/stmicro/stmmac/stmmac_platform.c |   3 +-
 11 files changed, 474 insertions(+), 5 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
 create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c


base-commit: 8ca09d5fa3549d142c2080a72a4c70ce389163cd
prerequisite-patch-id: 46cc850aa0e9e03ccf5ed23d8458babfca3d71af
prerequisite-patch-id: a6975e61ee5803fbd74b1c21ab925fd81c3c0eab
prerequisite-patch-id: ac150a8c622e858e088df8121093d448df49c245
prerequisite-patch-id: 044263ef2fb9f1e5a586edbf85d5f67814a28430
prerequisite-patch-id: 89f049f951e5acf75aab92541992f816fd0acc0d
prerequisite-patch-id: 9f3dbc9073eee89134e68977e941e457593c2757
prerequisite-patch-id: 8600b156a235be2b3db53be3f834e7a370e2cfb9
prerequisite-patch-id: 1b2d0982b18da060c82134f05bf3ce16425bac8d
prerequisite-patch-id: 090ba4b78d47bc19204916e76fdbc70021785388
prerequisite-patch-id: a5d9e0f7d4f8163f566678894cf693015119f2d9
prerequisite-patch-id: 4c12d958e3a3d629d86dddb1e4f099d8909393e0
prerequisite-patch-id: bb939c0c7c26b08addfccd890f9d3974b6eaec53
prerequisite-patch-id: 8f5c66dfb14403424044192f6fa05b347ad356a7
prerequisite-patch-id: fd93763b95469912bde9bdfa4cd827c8d5dba9c6
prerequisite-patch-id: 6987950c2eb4b3773b2df8f7934eff434244aeab
prerequisite-patch-id: 258ea5f9b8bf41b6981345dcc81795f25865d38f
prerequisite-patch-id: 8b6f2c9660c0ac0ee4e73e4c21aca8e6b75e81b9
prerequisite-patch-id: dbb0c0151b8bdf093e6ce79fd2fe3f60791a6e0b
prerequisite-patch-id: e7773c977a7b37692e9792b21cc4f17fa58f9215
prerequisite-patch-id: d57e95d31686772abc4c4d5aa1cadc344dc293cd
prerequisite-patch-id: 9f911969d0a550648493952c99096d26e05d4d83
prerequisite-patch-id: 1be0fb49e0fbe293ca8fa94601e191b13c8c67d9
prerequisite-patch-id: a8340aa3403658e8275d0da0038c2d49bc79843a
--
2.17.1


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linux-riscv@lists.infradead.org
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[PATCH v6 1/8] dt-bindings: net: snps,dwmac: Add dwmac-5.20 version

[Samin Guo]

From: Emil Renner Berthing <kernel@esmil.dk>

Add dwmac-5.20 IP version to snps.dwmac.yaml

Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Samin Guo <samin.guo@starfivetech.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 Documentation/devicetree/bindings/net/snps,dwmac.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index 16b7d2904696..01b056ab71f7 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
@@ -30,6 +30,7 @@ select:
           - snps,dwmac-4.10a
           - snps,dwmac-4.20a
           - snps,dwmac-5.10a
+          - snps,dwmac-5.20
           - snps,dwxgmac
           - snps,dwxgmac-2.10
 
@@ -87,6 +88,7 @@ properties:
         - snps,dwmac-4.10a
         - snps,dwmac-4.20a
         - snps,dwmac-5.10a
+        - snps,dwmac-5.20
         - snps,dwxgmac
         - snps,dwxgmac-2.10
 
@@ -575,6 +577,7 @@ allOf:
               - snps,dwmac-3.50a
               - snps,dwmac-4.10a
               - snps,dwmac-4.20a
+              - snps,dwmac-5.20
               - snps,dwxgmac
               - snps,dwxgmac-2.10
               - st,spear600-gmac
@@ -629,6 +632,7 @@ allOf:
               - snps,dwmac-4.10a
               - snps,dwmac-4.20a
               - snps,dwmac-5.10a
+              - snps,dwmac-5.20
               - snps,dwxgmac
               - snps,dwxgmac-2.10
               - st,spear600-gmac
-- 
2.17.1

[PATCH v6 1/8] dt-bindings: net: snps,dwmac: Add dwmac-5.20 version

[Samin Guo]

From: Emil Renner Berthing <kernel@esmil.dk>

Add dwmac-5.20 IP version to snps.dwmac.yaml

Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Samin Guo <samin.guo@starfivetech.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 Documentation/devicetree/bindings/net/snps,dwmac.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index 16b7d2904696..01b056ab71f7 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
@@ -30,6 +30,7 @@ select:
           - snps,dwmac-4.10a
           - snps,dwmac-4.20a
           - snps,dwmac-5.10a
+          - snps,dwmac-5.20
           - snps,dwxgmac
           - snps,dwxgmac-2.10
 
@@ -87,6 +88,7 @@ properties:
         - snps,dwmac-4.10a
         - snps,dwmac-4.20a
         - snps,dwmac-5.10a
+        - snps,dwmac-5.20
         - snps,dwxgmac
         - snps,dwxgmac-2.10
 
@@ -575,6 +577,7 @@ allOf:
               - snps,dwmac-3.50a
               - snps,dwmac-4.10a
               - snps,dwmac-4.20a
+              - snps,dwmac-5.20
               - snps,dwxgmac
               - snps,dwxgmac-2.10
               - st,spear600-gmac
@@ -629,6 +632,7 @@ allOf:
               - snps,dwmac-4.10a
               - snps,dwmac-4.20a
               - snps,dwmac-5.10a
+              - snps,dwmac-5.20
               - snps,dwxgmac
               - snps,dwxgmac-2.10
               - st,spear600-gmac
-- 
2.17.1


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linux-riscv@lists.infradead.org
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[PATCH v6 2/8] net: stmmac: platform: Add snps,dwmac-5.20 IP compatible string

[Samin Guo]

From: Emil Renner Berthing <kernel@esmil.dk>

Add "snps,dwmac-5.20" compatible string for 5.20 version that can avoid
to define some platform data in the glue layer.

Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Samin Guo <samin.guo@starfivetech.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 067a40fe0a23..eb0b2898daa3 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -519,7 +519,8 @@ stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac)
 	if (of_device_is_compatible(np, "snps,dwmac-4.00") ||
 	    of_device_is_compatible(np, "snps,dwmac-4.10a") ||
 	    of_device_is_compatible(np, "snps,dwmac-4.20a") ||
-	    of_device_is_compatible(np, "snps,dwmac-5.10a")) {
+	    of_device_is_compatible(np, "snps,dwmac-5.10a") ||
+	    of_device_is_compatible(np, "snps,dwmac-5.20")) {
 		plat->has_gmac4 = 1;
 		plat->has_gmac = 0;
 		plat->pmt = 1;
-- 
2.17.1

[PATCH v6 2/8] net: stmmac: platform: Add snps,dwmac-5.20 IP compatible string

[Samin Guo]

From: Emil Renner Berthing <kernel@esmil.dk>

Add "snps,dwmac-5.20" compatible string for 5.20 version that can avoid
to define some platform data in the glue layer.

Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Samin Guo <samin.guo@starfivetech.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 067a40fe0a23..eb0b2898daa3 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -519,7 +519,8 @@ stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac)
 	if (of_device_is_compatible(np, "snps,dwmac-4.00") ||
 	    of_device_is_compatible(np, "snps,dwmac-4.10a") ||
 	    of_device_is_compatible(np, "snps,dwmac-4.20a") ||
-	    of_device_is_compatible(np, "snps,dwmac-5.10a")) {
+	    of_device_is_compatible(np, "snps,dwmac-5.10a") ||
+	    of_device_is_compatible(np, "snps,dwmac-5.20")) {
 		plat->has_gmac4 = 1;
 		plat->has_gmac = 0;
 		plat->pmt = 1;
-- 
2.17.1


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[PATCH v6 3/8] dt-bindings: net: snps,dwmac: Add 'ahb' reset/reset-name

[Samin Guo]

According to:
stmmac_platform.c: stmmac_probe_config_dt
stmmac_main.c: stmmac_dvr_probe

dwmac controller may require one (stmmaceth) or two (stmmaceth+ahb)
reset signals, and the maxItems of resets/reset-names is going to be 2.

The gmac of Starfive Jh7110 SOC must have two resets.
it uses snps,dwmac-5.20 IP.

Signed-off-by: Samin Guo <samin.guo@starfivetech.com>
---
 .../devicetree/bindings/net/snps,dwmac.yaml          | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index 01b056ab71f7..e4519cf722ab 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
@@ -133,12 +133,16 @@ properties:
         - ptp_ref
 
   resets:
-    maxItems: 1
-    description:
-      MAC Reset signal.
+    minItems: 1
+    items:
+      - description: GMAC stmmaceth reset
+      - description: AHB reset
 
   reset-names:
-    const: stmmaceth
+    minItems: 1
+    items:
+      - const: stmmaceth
+      - const: ahb
 
   power-domains:
     maxItems: 1
-- 
2.17.1

[PATCH v6 3/8] dt-bindings: net: snps,dwmac: Add 'ahb' reset/reset-name

[Samin Guo]

According to:
stmmac_platform.c: stmmac_probe_config_dt
stmmac_main.c: stmmac_dvr_probe

dwmac controller may require one (stmmaceth) or two (stmmaceth+ahb)
reset signals, and the maxItems of resets/reset-names is going to be 2.

The gmac of Starfive Jh7110 SOC must have two resets.
it uses snps,dwmac-5.20 IP.

Signed-off-by: Samin Guo <samin.guo@starfivetech.com>
---
 .../devicetree/bindings/net/snps,dwmac.yaml          | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index 01b056ab71f7..e4519cf722ab 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
@@ -133,12 +133,16 @@ properties:
         - ptp_ref
 
   resets:
-    maxItems: 1
-    description:
-      MAC Reset signal.
+    minItems: 1
+    items:
+      - description: GMAC stmmaceth reset
+      - description: AHB reset
 
   reset-names:
-    const: stmmaceth
+    minItems: 1
+    items:
+      - const: stmmaceth
+      - const: ahb
 
   power-domains:
     maxItems: 1
-- 
2.17.1


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[PATCH v6 4/8] dt-bindings: net: Add support StarFive dwmac

[Samin Guo]

From: Yanhong Wang <yanhong.wang@starfivetech.com>

Add documentation to describe StarFive dwmac driver(GMAC).

Signed-off-by: Yanhong Wang <yanhong.wang@starfivetech.com>
Signed-off-by: Samin Guo <samin.guo@starfivetech.com>
---
 .../devicetree/bindings/net/snps,dwmac.yaml   |   1 +
 .../bindings/net/starfive,jh7110-dwmac.yaml   | 130 ++++++++++++++++++
 MAINTAINERS                                   |   6 +
 3 files changed, 137 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml

diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index e4519cf722ab..245f7d713261 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
@@ -91,6 +91,7 @@ properties:
         - snps,dwmac-5.20
         - snps,dwxgmac
         - snps,dwxgmac-2.10
+        - starfive,jh7110-dwmac
 
   reg:
     minItems: 1
diff --git a/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml b/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
new file mode 100644
index 000000000000..b59e6bd8201f
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
@@ -0,0 +1,130 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2022 StarFive Technology Co., Ltd.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/starfive,jh7110-dwmac.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive JH7110 DWMAC glue layer
+
+maintainers:
+  - Emil Renner Berthing <kernel@esmil.dk>
+  - Samin Guo <samin.guo@starfivetech.com>
+
+select:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - starfive,jh7110-dwmac
+  required:
+    - compatible
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - starfive,jh7110-dwmac
+      - const: snps,dwmac-5.20
+
+  clocks:
+    items:
+      - description: GMAC main clock
+      - description: GMAC AHB clock
+      - description: PTP clock
+      - description: TX clock
+      - description: GTX clock
+
+  clock-names:
+    items:
+      - const: stmmaceth
+      - const: pclk
+      - const: ptp_ref
+      - const: tx
+      - const: gtx
+
+  resets:
+    items:
+      - description: MAC Reset signal.
+      - description: AHB Reset signal.
+
+  reset-names:
+    items:
+      - const: stmmaceth
+      - const: ahb
+
+  starfive,tx-use-rgmii-clk:
+    description:
+      Tx clock is provided by external rgmii clock.
+    type: boolean
+
+  starfive,syscon:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    items:
+      - items:
+          - description: phandle to syscon that configures phy mode
+          - description: Offset of phy mode selection
+          - description: Shift of phy mode selection
+    description:
+      A phandle to syscon with two arguments that configure phy mode.
+      The argument one is the offset of phy mode selection, the
+      argument two is the shift of phy mode selection.
+
+allOf:
+  - $ref: snps,dwmac.yaml#
+
+unevaluatedProperties: false
+
+required:
+  - compatible
+  - clocks
+  - clock-names
+  - resets
+  - reset-names
+
+examples:
+  - |
+    ethernet@16030000 {
+        compatible = "starfive,jh7110-dwmac", "snps,dwmac-5.20";
+        reg = <0x16030000 0x10000>;
+        clocks = <&clk 3>, <&clk 2>, <&clk 109>,
+                 <&clk 6>, <&clk 111>;
+        clock-names = "stmmaceth", "pclk", "ptp_ref",
+                      "tx", "gtx";
+        resets = <&rst 1>, <&rst 2>;
+        reset-names = "stmmaceth", "ahb";
+        interrupts = <7>, <6>, <5>;
+        interrupt-names = "macirq", "eth_wake_irq", "eth_lpi";
+        phy-mode = "rgmii-id";
+        snps,multicast-filter-bins = <64>;
+        snps,perfect-filter-entries = <8>;
+        rx-fifo-depth = <2048>;
+        tx-fifo-depth = <2048>;
+        snps,fixed-burst;
+        snps,no-pbl-x8;
+        snps,tso;
+        snps,force_thresh_dma_mode;
+        snps,axi-config = <&stmmac_axi_setup>;
+        snps,en-tx-lpi-clockgating;
+        snps,txpbl = <16>;
+        snps,rxpbl = <16>;
+        starfive,syscon = <&aon_syscon 0xc 0x12>;
+        phy-handle = <&phy0>;
+
+        mdio {
+            #address-cells = <1>;
+            #size-cells = <0>;
+            compatible = "snps,dwmac-mdio";
+
+            phy0: ethernet-phy@0 {
+                reg = <0>;
+            };
+        };
+
+        stmmac_axi_setup: stmmac-axi-config {
+            snps,lpi_en;
+            snps,wr_osr_lmt = <4>;
+            snps,rd_osr_lmt = <4>;
+            snps,blen = <256 128 64 32 0 0 0>;
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 958b7ec118b4..ffcda7f2ac5e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19913,6 +19913,12 @@ M:	Emil Renner Berthing <kernel@esmil.dk>
 S:	Maintained
 F:	arch/riscv/boot/dts/starfive/
 
+STARFIVE DWMAC GLUE LAYER
+M:	Emil Renner Berthing <kernel@esmil.dk>
+M:	Samin Guo <samin.guo@starfivetech.com>
+S:	Maintained
+F:	Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
+
 STARFIVE JH71X0 CLOCK DRIVERS
 M:	Emil Renner Berthing <kernel@esmil.dk>
 M:	Hal Feng <hal.feng@starfivetech.com>
-- 
2.17.1

[PATCH v6 4/8] dt-bindings: net: Add support StarFive dwmac

[Samin Guo]

From: Yanhong Wang <yanhong.wang@starfivetech.com>

Add documentation to describe StarFive dwmac driver(GMAC).

Signed-off-by: Yanhong Wang <yanhong.wang@starfivetech.com>
Signed-off-by: Samin Guo <samin.guo@starfivetech.com>
---
 .../devicetree/bindings/net/snps,dwmac.yaml   |   1 +
 .../bindings/net/starfive,jh7110-dwmac.yaml   | 130 ++++++++++++++++++
 MAINTAINERS                                   |   6 +
 3 files changed, 137 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml

diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index e4519cf722ab..245f7d713261 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
@@ -91,6 +91,7 @@ properties:
         - snps,dwmac-5.20
         - snps,dwxgmac
         - snps,dwxgmac-2.10
+        - starfive,jh7110-dwmac
 
   reg:
     minItems: 1
diff --git a/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml b/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
new file mode 100644
index 000000000000..b59e6bd8201f
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
@@ -0,0 +1,130 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2022 StarFive Technology Co., Ltd.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/starfive,jh7110-dwmac.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive JH7110 DWMAC glue layer
+
+maintainers:
+  - Emil Renner Berthing <kernel@esmil.dk>
+  - Samin Guo <samin.guo@starfivetech.com>
+
+select:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - starfive,jh7110-dwmac
+  required:
+    - compatible
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - starfive,jh7110-dwmac
+      - const: snps,dwmac-5.20
+
+  clocks:
+    items:
+      - description: GMAC main clock
+      - description: GMAC AHB clock
+      - description: PTP clock
+      - description: TX clock
+      - description: GTX clock
+
+  clock-names:
+    items:
+      - const: stmmaceth
+      - const: pclk
+      - const: ptp_ref
+      - const: tx
+      - const: gtx
+
+  resets:
+    items:
+      - description: MAC Reset signal.
+      - description: AHB Reset signal.
+
+  reset-names:
+    items:
+      - const: stmmaceth
+      - const: ahb
+
+  starfive,tx-use-rgmii-clk:
+    description:
+      Tx clock is provided by external rgmii clock.
+    type: boolean
+
+  starfive,syscon:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    items:
+      - items:
+          - description: phandle to syscon that configures phy mode
+          - description: Offset of phy mode selection
+          - description: Shift of phy mode selection
+    description:
+      A phandle to syscon with two arguments that configure phy mode.
+      The argument one is the offset of phy mode selection, the
+      argument two is the shift of phy mode selection.
+
+allOf:
+  - $ref: snps,dwmac.yaml#
+
+unevaluatedProperties: false
+
+required:
+  - compatible
+  - clocks
+  - clock-names
+  - resets
+  - reset-names
+
+examples:
+  - |
+    ethernet@16030000 {
+        compatible = "starfive,jh7110-dwmac", "snps,dwmac-5.20";
+        reg = <0x16030000 0x10000>;
+        clocks = <&clk 3>, <&clk 2>, <&clk 109>,
+                 <&clk 6>, <&clk 111>;
+        clock-names = "stmmaceth", "pclk", "ptp_ref",
+                      "tx", "gtx";
+        resets = <&rst 1>, <&rst 2>;
+        reset-names = "stmmaceth", "ahb";
+        interrupts = <7>, <6>, <5>;
+        interrupt-names = "macirq", "eth_wake_irq", "eth_lpi";
+        phy-mode = "rgmii-id";
+        snps,multicast-filter-bins = <64>;
+        snps,perfect-filter-entries = <8>;
+        rx-fifo-depth = <2048>;
+        tx-fifo-depth = <2048>;
+        snps,fixed-burst;
+        snps,no-pbl-x8;
+        snps,tso;
+        snps,force_thresh_dma_mode;
+        snps,axi-config = <&stmmac_axi_setup>;
+        snps,en-tx-lpi-clockgating;
+        snps,txpbl = <16>;
+        snps,rxpbl = <16>;
+        starfive,syscon = <&aon_syscon 0xc 0x12>;
+        phy-handle = <&phy0>;
+
+        mdio {
+            #address-cells = <1>;
+            #size-cells = <0>;
+            compatible = "snps,dwmac-mdio";
+
+            phy0: ethernet-phy@0 {
+                reg = <0>;
+            };
+        };
+
+        stmmac_axi_setup: stmmac-axi-config {
+            snps,lpi_en;
+            snps,wr_osr_lmt = <4>;
+            snps,rd_osr_lmt = <4>;
+            snps,blen = <256 128 64 32 0 0 0>;
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 958b7ec118b4..ffcda7f2ac5e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19913,6 +19913,12 @@ M:	Emil Renner Berthing <kernel@esmil.dk>
 S:	Maintained
 F:	arch/riscv/boot/dts/starfive/
 
+STARFIVE DWMAC GLUE LAYER
+M:	Emil Renner Berthing <kernel@esmil.dk>
+M:	Samin Guo <samin.guo@starfivetech.com>
+S:	Maintained
+F:	Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
+
 STARFIVE JH71X0 CLOCK DRIVERS
 M:	Emil Renner Berthing <kernel@esmil.dk>
 M:	Hal Feng <hal.feng@starfivetech.com>
-- 
2.17.1


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[PATCH v6 5/8] net: stmmac: Add glue layer for StarFive JH7110 SoC

[Samin Guo]

This adds StarFive dwmac driver support on the StarFive JH7110 SoC.

Co-developed-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Samin Guo <samin.guo@starfivetech.com>
Tested-by: Tommaso Merciai <tomm.merciai@gmail.com>
---
 MAINTAINERS                                   |   1 +
 drivers/net/ethernet/stmicro/stmmac/Kconfig   |  12 ++
 drivers/net/ethernet/stmicro/stmmac/Makefile  |   1 +
 .../ethernet/stmicro/stmmac/dwmac-starfive.c  | 121 ++++++++++++++++++
 4 files changed, 135 insertions(+)
 create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c

diff --git a/MAINTAINERS b/MAINTAINERS
index ffcda7f2ac5e..ba4672b41012 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19917,6 +19917,7 @@ STARFIVE DWMAC GLUE LAYER
 M:	Emil Renner Berthing <kernel@esmil.dk>
 M:	Samin Guo <samin.guo@starfivetech.com>
 S:	Maintained
+F:	Documentation/devicetree/bindings/net/dwmac-starfive.c
 F:	Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
 
 STARFIVE JH71X0 CLOCK DRIVERS
diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig
index f77511fe4e87..5f5a997f21f3 100644
--- a/drivers/net/ethernet/stmicro/stmmac/Kconfig
+++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig
@@ -165,6 +165,18 @@ config DWMAC_SOCFPGA
 	  for the stmmac device driver. This driver is used for
 	  arria5 and cyclone5 FPGA SoCs.
 
+config DWMAC_STARFIVE
+	tristate "StarFive dwmac support"
+	depends on OF && (ARCH_STARFIVE || COMPILE_TEST)
+	select MFD_SYSCON
+	default m if ARCH_STARFIVE
+	help
+	  Support for ethernet controllers on StarFive RISC-V SoCs
+
+	  This selects the StarFive platform specific glue layer support for
+	  the stmmac device driver. This driver is used for StarFive JH7110
+	  ethernet controller.
+
 config DWMAC_STI
 	tristate "STi GMAC support"
 	default ARCH_STI
diff --git a/drivers/net/ethernet/stmicro/stmmac/Makefile b/drivers/net/ethernet/stmicro/stmmac/Makefile
index 057e4bab5c08..8738fdbb4b2d 100644
--- a/drivers/net/ethernet/stmicro/stmmac/Makefile
+++ b/drivers/net/ethernet/stmicro/stmmac/Makefile
@@ -23,6 +23,7 @@ obj-$(CONFIG_DWMAC_OXNAS)	+= dwmac-oxnas.o
 obj-$(CONFIG_DWMAC_QCOM_ETHQOS)	+= dwmac-qcom-ethqos.o
 obj-$(CONFIG_DWMAC_ROCKCHIP)	+= dwmac-rk.o
 obj-$(CONFIG_DWMAC_SOCFPGA)	+= dwmac-altr-socfpga.o
+obj-$(CONFIG_DWMAC_STARFIVE)	+= dwmac-starfive.o
 obj-$(CONFIG_DWMAC_STI)		+= dwmac-sti.o
 obj-$(CONFIG_DWMAC_STM32)	+= dwmac-stm32.o
 obj-$(CONFIG_DWMAC_SUNXI)	+= dwmac-sunxi.o
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c
new file mode 100644
index 000000000000..ef5a769b1c75
--- /dev/null
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c
@@ -0,0 +1,121 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * StarFive DWMAC platform driver
+ *
+ * Copyright (C) 2021 Emil Renner Berthing <kernel@esmil.dk>
+ * Copyright (C) 2022 StarFive Technology Co., Ltd.
+ *
+ */
+
+#include <linux/mfd/syscon.h>
+#include <linux/of_device.h>
+#include <linux/regmap.h>
+
+#include "stmmac_platform.h"
+
+struct starfive_dwmac {
+	struct device *dev;
+	struct clk *clk_tx;
+};
+
+static void starfive_dwmac_fix_mac_speed(void *priv, unsigned int speed)
+{
+	struct starfive_dwmac *dwmac = priv;
+	unsigned long rate;
+	int err;
+
+	switch (speed) {
+	case SPEED_1000:
+		rate = 125000000;
+		break;
+	case SPEED_100:
+		rate = 25000000;
+		break;
+	case SPEED_10:
+		rate = 2500000;
+		break;
+	default:
+		dev_err(dwmac->dev, "invalid speed %u\n", speed);
+		break;
+	}
+
+	err = clk_set_rate(dwmac->clk_tx, rate);
+	if (err)
+		dev_err(dwmac->dev, "failed to set tx rate %lu\n", rate);
+}
+
+static int starfive_dwmac_probe(struct platform_device *pdev)
+{
+	struct plat_stmmacenet_data *plat_dat;
+	struct stmmac_resources stmmac_res;
+	struct starfive_dwmac *dwmac;
+	struct clk *clk_gtx;
+	int err;
+
+	err = stmmac_get_platform_resources(pdev, &stmmac_res);
+	if (err)
+		return err;
+
+	plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac);
+	if (IS_ERR(plat_dat)) {
+		dev_err(&pdev->dev, "dt configuration failed\n");
+		return PTR_ERR(plat_dat);
+	}
+
+	dwmac = devm_kzalloc(&pdev->dev, sizeof(*dwmac), GFP_KERNEL);
+	if (!dwmac)
+		return -ENOMEM;
+
+	dwmac->clk_tx = devm_clk_get_enabled(&pdev->dev, "tx");
+	if (IS_ERR(dwmac->clk_tx))
+		return dev_err_probe(&pdev->dev, PTR_ERR(dwmac->clk_tx),
+				     "error getting tx clock\n");
+
+	clk_gtx = devm_clk_get_enabled(&pdev->dev, "gtx");
+	if (IS_ERR(clk_gtx))
+		return dev_err_probe(&pdev->dev, PTR_ERR(clk_gtx),
+				     "error getting gtx clock\n");
+
+	/* Generally, the rgmii_tx clock is provided by the internal clock,
+	 * which needs to match the corresponding clock frequency according
+	 * to different speeds. If the rgmii_tx clock is provided by the
+	 * external rgmii_rxin, there is no need to configure the clock
+	 * internally, because rgmii_rxin will be adaptively adjusted.
+	 */
+	if (!device_property_read_bool(&pdev->dev, "starfive,tx-use-rgmii-clk"))
+		plat_dat->fix_mac_speed = starfive_dwmac_fix_mac_speed;
+
+	dwmac->dev = &pdev->dev;
+	plat_dat->bsp_priv = dwmac;
+	plat_dat->dma_cfg->dche = true;
+
+	err = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
+	if (err) {
+		stmmac_remove_config_dt(pdev, plat_dat);
+		return err;
+	}
+
+	return 0;
+}
+
+static const struct of_device_id starfive_dwmac_match[] = {
+	{ .compatible = "starfive,jh7110-dwmac"	},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, starfive_dwmac_match);
+
+static struct platform_driver starfive_dwmac_driver = {
+	.probe  = starfive_dwmac_probe,
+	.remove = stmmac_pltfr_remove,
+	.driver = {
+		.name = "starfive-dwmac",
+		.pm = &stmmac_pltfr_pm_ops,
+		.of_match_table = starfive_dwmac_match,
+	},
+};
+module_platform_driver(starfive_dwmac_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("StarFive DWMAC platform driver");
+MODULE_AUTHOR("Emil Renner Berthing <kernel@esmil.dk>");
+MODULE_AUTHOR("Samin Guo <samin.guo@starfivetech.com>");
-- 
2.17.1

[PATCH v6 5/8] net: stmmac: Add glue layer for StarFive JH7110 SoC

[Samin Guo]

This adds StarFive dwmac driver support on the StarFive JH7110 SoC.

Co-developed-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Samin Guo <samin.guo@starfivetech.com>
Tested-by: Tommaso Merciai <tomm.merciai@gmail.com>
---
 MAINTAINERS                                   |   1 +
 drivers/net/ethernet/stmicro/stmmac/Kconfig   |  12 ++
 drivers/net/ethernet/stmicro/stmmac/Makefile  |   1 +
 .../ethernet/stmicro/stmmac/dwmac-starfive.c  | 121 ++++++++++++++++++
 4 files changed, 135 insertions(+)
 create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c

diff --git a/MAINTAINERS b/MAINTAINERS
index ffcda7f2ac5e..ba4672b41012 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19917,6 +19917,7 @@ STARFIVE DWMAC GLUE LAYER
 M:	Emil Renner Berthing <kernel@esmil.dk>
 M:	Samin Guo <samin.guo@starfivetech.com>
 S:	Maintained
+F:	Documentation/devicetree/bindings/net/dwmac-starfive.c
 F:	Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
 
 STARFIVE JH71X0 CLOCK DRIVERS
diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig
index f77511fe4e87..5f5a997f21f3 100644
--- a/drivers/net/ethernet/stmicro/stmmac/Kconfig
+++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig
@@ -165,6 +165,18 @@ config DWMAC_SOCFPGA
 	  for the stmmac device driver. This driver is used for
 	  arria5 and cyclone5 FPGA SoCs.
 
+config DWMAC_STARFIVE
+	tristate "StarFive dwmac support"
+	depends on OF && (ARCH_STARFIVE || COMPILE_TEST)
+	select MFD_SYSCON
+	default m if ARCH_STARFIVE
+	help
+	  Support for ethernet controllers on StarFive RISC-V SoCs
+
+	  This selects the StarFive platform specific glue layer support for
+	  the stmmac device driver. This driver is used for StarFive JH7110
+	  ethernet controller.
+
 config DWMAC_STI
 	tristate "STi GMAC support"
 	default ARCH_STI
diff --git a/drivers/net/ethernet/stmicro/stmmac/Makefile b/drivers/net/ethernet/stmicro/stmmac/Makefile
index 057e4bab5c08..8738fdbb4b2d 100644
--- a/drivers/net/ethernet/stmicro/stmmac/Makefile
+++ b/drivers/net/ethernet/stmicro/stmmac/Makefile
@@ -23,6 +23,7 @@ obj-$(CONFIG_DWMAC_OXNAS)	+= dwmac-oxnas.o
 obj-$(CONFIG_DWMAC_QCOM_ETHQOS)	+= dwmac-qcom-ethqos.o
 obj-$(CONFIG_DWMAC_ROCKCHIP)	+= dwmac-rk.o
 obj-$(CONFIG_DWMAC_SOCFPGA)	+= dwmac-altr-socfpga.o
+obj-$(CONFIG_DWMAC_STARFIVE)	+= dwmac-starfive.o
 obj-$(CONFIG_DWMAC_STI)		+= dwmac-sti.o
 obj-$(CONFIG_DWMAC_STM32)	+= dwmac-stm32.o
 obj-$(CONFIG_DWMAC_SUNXI)	+= dwmac-sunxi.o
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c
new file mode 100644
index 000000000000..ef5a769b1c75
--- /dev/null
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c
@@ -0,0 +1,121 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * StarFive DWMAC platform driver
+ *
+ * Copyright (C) 2021 Emil Renner Berthing <kernel@esmil.dk>
+ * Copyright (C) 2022 StarFive Technology Co., Ltd.
+ *
+ */
+
+#include <linux/mfd/syscon.h>
+#include <linux/of_device.h>
+#include <linux/regmap.h>
+
+#include "stmmac_platform.h"
+
+struct starfive_dwmac {
+	struct device *dev;
+	struct clk *clk_tx;
+};
+
+static void starfive_dwmac_fix_mac_speed(void *priv, unsigned int speed)
+{
+	struct starfive_dwmac *dwmac = priv;
+	unsigned long rate;
+	int err;
+
+	switch (speed) {
+	case SPEED_1000:
+		rate = 125000000;
+		break;
+	case SPEED_100:
+		rate = 25000000;
+		break;
+	case SPEED_10:
+		rate = 2500000;
+		break;
+	default:
+		dev_err(dwmac->dev, "invalid speed %u\n", speed);
+		break;
+	}
+
+	err = clk_set_rate(dwmac->clk_tx, rate);
+	if (err)
+		dev_err(dwmac->dev, "failed to set tx rate %lu\n", rate);
+}
+
+static int starfive_dwmac_probe(struct platform_device *pdev)
+{
+	struct plat_stmmacenet_data *plat_dat;
+	struct stmmac_resources stmmac_res;
+	struct starfive_dwmac *dwmac;
+	struct clk *clk_gtx;
+	int err;
+
+	err = stmmac_get_platform_resources(pdev, &stmmac_res);
+	if (err)
+		return err;
+
+	plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac);
+	if (IS_ERR(plat_dat)) {
+		dev_err(&pdev->dev, "dt configuration failed\n");
+		return PTR_ERR(plat_dat);
+	}
+
+	dwmac = devm_kzalloc(&pdev->dev, sizeof(*dwmac), GFP_KERNEL);
+	if (!dwmac)
+		return -ENOMEM;
+
+	dwmac->clk_tx = devm_clk_get_enabled(&pdev->dev, "tx");
+	if (IS_ERR(dwmac->clk_tx))
+		return dev_err_probe(&pdev->dev, PTR_ERR(dwmac->clk_tx),
+				     "error getting tx clock\n");
+
+	clk_gtx = devm_clk_get_enabled(&pdev->dev, "gtx");
+	if (IS_ERR(clk_gtx))
+		return dev_err_probe(&pdev->dev, PTR_ERR(clk_gtx),
+				     "error getting gtx clock\n");
+
+	/* Generally, the rgmii_tx clock is provided by the internal clock,
+	 * which needs to match the corresponding clock frequency according
+	 * to different speeds. If the rgmii_tx clock is provided by the
+	 * external rgmii_rxin, there is no need to configure the clock
+	 * internally, because rgmii_rxin will be adaptively adjusted.
+	 */
+	if (!device_property_read_bool(&pdev->dev, "starfive,tx-use-rgmii-clk"))
+		plat_dat->fix_mac_speed = starfive_dwmac_fix_mac_speed;
+
+	dwmac->dev = &pdev->dev;
+	plat_dat->bsp_priv = dwmac;
+	plat_dat->dma_cfg->dche = true;
+
+	err = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
+	if (err) {
+		stmmac_remove_config_dt(pdev, plat_dat);
+		return err;
+	}
+
+	return 0;
+}
+
+static const struct of_device_id starfive_dwmac_match[] = {
+	{ .compatible = "starfive,jh7110-dwmac"	},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, starfive_dwmac_match);
+
+static struct platform_driver starfive_dwmac_driver = {
+	.probe  = starfive_dwmac_probe,
+	.remove = stmmac_pltfr_remove,
+	.driver = {
+		.name = "starfive-dwmac",
+		.pm = &stmmac_pltfr_pm_ops,
+		.of_match_table = starfive_dwmac_match,
+	},
+};
+module_platform_driver(starfive_dwmac_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("StarFive DWMAC platform driver");
+MODULE_AUTHOR("Emil Renner Berthing <kernel@esmil.dk>");
+MODULE_AUTHOR("Samin Guo <samin.guo@starfivetech.com>");
-- 
2.17.1


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[PATCH v6 6/8] net: stmmac: starfive_dmac: Add phy interface settings

[Samin Guo]

dwmac supports multiple modess. When working under rmii and rgmii,
you need to set different phy interfaces.

According to the dwmac document, when working in rmii, it needs to be
set to 0x4, and rgmii needs to be set to 0x1.

The phy interface needs to be set in syscon, the format is as follows:
starfive,syscon: <&syscon, offset, shift>

Signed-off-by: Samin Guo <samin.guo@starfivetech.com>
Tested-by: Tommaso Merciai <tomm.merciai@gmail.com>
---
 .../ethernet/stmicro/stmmac/dwmac-starfive.c  | 47 +++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c
index ef5a769b1c75..84690c8f0250 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c
@@ -13,6 +13,10 @@
 
 #include "stmmac_platform.h"
 
+#define STARFIVE_DWMAC_PHY_INFT_RGMII	0x1
+#define STARFIVE_DWMAC_PHY_INFT_RMII	0x4
+#define STARFIVE_DWMAC_PHY_INFT_FIELD	0x7U
+
 struct starfive_dwmac {
 	struct device *dev;
 	struct clk *clk_tx;
@@ -44,6 +48,43 @@ static void starfive_dwmac_fix_mac_speed(void *priv, unsigned int speed)
 		dev_err(dwmac->dev, "failed to set tx rate %lu\n", rate);
 }
 
+static int starfive_dwmac_set_mode(struct plat_stmmacenet_data *plat_dat)
+{
+	struct starfive_dwmac *dwmac = plat_dat->bsp_priv;
+	struct regmap *regmap;
+	unsigned int args[2];
+	unsigned int mode;
+
+	switch (plat_dat->interface) {
+	case PHY_INTERFACE_MODE_RMII:
+		mode = STARFIVE_DWMAC_PHY_INFT_RMII;
+		break;
+
+	case PHY_INTERFACE_MODE_RGMII:
+	case PHY_INTERFACE_MODE_RGMII_ID:
+		mode = STARFIVE_DWMAC_PHY_INFT_RGMII;
+		break;
+
+	default:
+		dev_err(dwmac->dev, "unsupported interface %d\n",
+			plat_dat->interface);
+		return -EINVAL;
+	}
+
+	regmap = syscon_regmap_lookup_by_phandle_args(dwmac->dev->of_node,
+						      "starfive,syscon",
+						      2, args);
+	if (IS_ERR(regmap)) {
+		dev_err(dwmac->dev, "syscon regmap failed.\n");
+		return -ENXIO;
+	}
+
+	/* args[0]:offset  args[1]: shift */
+	return regmap_update_bits(regmap, args[0],
+				  STARFIVE_DWMAC_PHY_INFT_FIELD << args[1],
+				  mode << args[1]);
+}
+
 static int starfive_dwmac_probe(struct platform_device *pdev)
 {
 	struct plat_stmmacenet_data *plat_dat;
@@ -89,6 +130,12 @@ static int starfive_dwmac_probe(struct platform_device *pdev)
 	plat_dat->bsp_priv = dwmac;
 	plat_dat->dma_cfg->dche = true;
 
+	err = starfive_dwmac_set_mode(plat_dat);
+	if (err) {
+		dev_err(&pdev->dev, "dwmac set mode failed.\n");
+		return err;
+	}
+
 	err = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
 	if (err) {
 		stmmac_remove_config_dt(pdev, plat_dat);
-- 
2.17.1

[PATCH v6 6/8] net: stmmac: starfive_dmac: Add phy interface settings

[Samin Guo]

dwmac supports multiple modess. When working under rmii and rgmii,
you need to set different phy interfaces.

According to the dwmac document, when working in rmii, it needs to be
set to 0x4, and rgmii needs to be set to 0x1.

The phy interface needs to be set in syscon, the format is as follows:
starfive,syscon: <&syscon, offset, shift>

Signed-off-by: Samin Guo <samin.guo@starfivetech.com>
Tested-by: Tommaso Merciai <tomm.merciai@gmail.com>
---
 .../ethernet/stmicro/stmmac/dwmac-starfive.c  | 47 +++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c
index ef5a769b1c75..84690c8f0250 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c
@@ -13,6 +13,10 @@
 
 #include "stmmac_platform.h"
 
+#define STARFIVE_DWMAC_PHY_INFT_RGMII	0x1
+#define STARFIVE_DWMAC_PHY_INFT_RMII	0x4
+#define STARFIVE_DWMAC_PHY_INFT_FIELD	0x7U
+
 struct starfive_dwmac {
 	struct device *dev;
 	struct clk *clk_tx;
@@ -44,6 +48,43 @@ static void starfive_dwmac_fix_mac_speed(void *priv, unsigned int speed)
 		dev_err(dwmac->dev, "failed to set tx rate %lu\n", rate);
 }
 
+static int starfive_dwmac_set_mode(struct plat_stmmacenet_data *plat_dat)
+{
+	struct starfive_dwmac *dwmac = plat_dat->bsp_priv;
+	struct regmap *regmap;
+	unsigned int args[2];
+	unsigned int mode;
+
+	switch (plat_dat->interface) {
+	case PHY_INTERFACE_MODE_RMII:
+		mode = STARFIVE_DWMAC_PHY_INFT_RMII;
+		break;
+
+	case PHY_INTERFACE_MODE_RGMII:
+	case PHY_INTERFACE_MODE_RGMII_ID:
+		mode = STARFIVE_DWMAC_PHY_INFT_RGMII;
+		break;
+
+	default:
+		dev_err(dwmac->dev, "unsupported interface %d\n",
+			plat_dat->interface);
+		return -EINVAL;
+	}
+
+	regmap = syscon_regmap_lookup_by_phandle_args(dwmac->dev->of_node,
+						      "starfive,syscon",
+						      2, args);
+	if (IS_ERR(regmap)) {
+		dev_err(dwmac->dev, "syscon regmap failed.\n");
+		return -ENXIO;
+	}
+
+	/* args[0]:offset  args[1]: shift */
+	return regmap_update_bits(regmap, args[0],
+				  STARFIVE_DWMAC_PHY_INFT_FIELD << args[1],
+				  mode << args[1]);
+}
+
 static int starfive_dwmac_probe(struct platform_device *pdev)
 {
 	struct plat_stmmacenet_data *plat_dat;
@@ -89,6 +130,12 @@ static int starfive_dwmac_probe(struct platform_device *pdev)
 	plat_dat->bsp_priv = dwmac;
 	plat_dat->dma_cfg->dche = true;
 
+	err = starfive_dwmac_set_mode(plat_dat);
+	if (err) {
+		dev_err(&pdev->dev, "dwmac set mode failed.\n");
+		return err;
+	}
+
 	err = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
 	if (err) {
 		stmmac_remove_config_dt(pdev, plat_dat);
-- 
2.17.1


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http://lists.infradead.org/mailman/listinfo/linux-riscv

[PATCH v6 7/8] riscv: dts: starfive: jh7110: Add ethernet device nodes

[Samin Guo]

Add JH7110 ethernet device node to support gmac driver for the JH7110
RISC-V SoC.

Signed-off-by: Yanhong Wang <yanhong.wang@starfivetech.com>
Signed-off-by: Samin Guo <samin.guo@starfivetech.com>
---
 arch/riscv/boot/dts/starfive/jh7110.dtsi | 69 ++++++++++++++++++++++++
 1 file changed, 69 insertions(+)

diff --git a/arch/riscv/boot/dts/starfive/jh7110.dtsi b/arch/riscv/boot/dts/starfive/jh7110.dtsi
index 49dd62276b0d..6ff0796e8877 100644
--- a/arch/riscv/boot/dts/starfive/jh7110.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7110.dtsi
@@ -239,6 +239,13 @@
 		#clock-cells = <0>;
 	};
 
+	stmmac_axi_setup: stmmac-axi-config {
+		snps,lpi_en;
+		snps,wr_osr_lmt = <4>;
+		snps,rd_osr_lmt = <4>;
+		snps,blen = <256 128 64 32 0 0 0>;
+	};
+
 	tdm_ext: tdm-ext-clock {
 		compatible = "fixed-clock";
 		clock-output-names = "tdm_ext";
@@ -488,6 +495,68 @@
 			#gpio-cells = <2>;
 		};
 
+		gmac0: ethernet@16030000 {
+			compatible = "starfive,jh7110-dwmac", "snps,dwmac-5.20";
+			reg = <0x0 0x16030000 0x0 0x10000>;
+			clocks = <&aoncrg JH7110_AONCLK_GMAC0_AXI>,
+				 <&aoncrg JH7110_AONCLK_GMAC0_AHB>,
+				 <&syscrg JH7110_SYSCLK_GMAC0_PTP>,
+				 <&aoncrg JH7110_AONCLK_GMAC0_TX_INV>,
+				 <&syscrg JH7110_SYSCLK_GMAC0_GTXC>;
+			clock-names = "stmmaceth", "pclk", "ptp_ref",
+				      "tx", "gtx";
+			resets = <&aoncrg JH7110_AONRST_GMAC0_AXI>,
+				 <&aoncrg JH7110_AONRST_GMAC0_AHB>;
+			reset-names = "stmmaceth", "ahb";
+			interrupts = <7>, <6>, <5>;
+			interrupt-names = "macirq", "eth_wake_irq", "eth_lpi";
+			snps,multicast-filter-bins = <64>;
+			snps,perfect-filter-entries = <8>;
+			rx-fifo-depth = <2048>;
+			tx-fifo-depth = <2048>;
+			snps,fixed-burst;
+			snps,no-pbl-x8;
+			snps,force_thresh_dma_mode;
+			snps,axi-config = <&stmmac_axi_setup>;
+			snps,tso;
+			snps,en-tx-lpi-clockgating;
+			snps,txpbl = <16>;
+			snps,rxpbl = <16>;
+			starfive,syscon = <&aon_syscon 0xc 0x12>;
+			status = "disabled";
+		};
+
+		gmac1: ethernet@16040000 {
+			compatible = "starfive,jh7110-dwmac", "snps,dwmac-5.20";
+			reg = <0x0 0x16040000 0x0 0x10000>;
+			clocks = <&syscrg JH7110_SYSCLK_GMAC1_AXI>,
+				 <&syscrg JH7110_SYSCLK_GMAC1_AHB>,
+				 <&syscrg JH7110_SYSCLK_GMAC1_PTP>,
+				 <&syscrg JH7110_SYSCLK_GMAC1_TX_INV>,
+				 <&syscrg JH7110_SYSCLK_GMAC1_GTXC>;
+			clock-names = "stmmaceth", "pclk", "ptp_ref",
+				      "tx", "gtx";
+			resets = <&syscrg JH7110_SYSRST_GMAC1_AXI>,
+				 <&syscrg JH7110_SYSRST_GMAC1_AHB>;
+			reset-names = "stmmaceth", "ahb";
+			interrupts = <78>, <77>, <76>;
+			interrupt-names = "macirq", "eth_wake_irq", "eth_lpi";
+			snps,multicast-filter-bins = <64>;
+			snps,perfect-filter-entries = <8>;
+			rx-fifo-depth = <2048>;
+			tx-fifo-depth = <2048>;
+			snps,fixed-burst;
+			snps,no-pbl-x8;
+			snps,force_thresh_dma_mode;
+			snps,axi-config = <&stmmac_axi_setup>;
+			snps,tso;
+			snps,en-tx-lpi-clockgating;
+			snps,txpbl = <16>;
+			snps,rxpbl = <16>;
+			starfive,syscon = <&sys_syscon 0x90 0x2>;
+			status = "disabled";
+		};
+
 		aoncrg: clock-controller@17000000 {
 			compatible = "starfive,jh7110-aoncrg";
 			reg = <0x0 0x17000000 0x0 0x10000>;
-- 
2.17.1

[PATCH v6 7/8] riscv: dts: starfive: jh7110: Add ethernet device nodes

[Samin Guo]

Add JH7110 ethernet device node to support gmac driver for the JH7110
RISC-V SoC.

Signed-off-by: Yanhong Wang <yanhong.wang@starfivetech.com>
Signed-off-by: Samin Guo <samin.guo@starfivetech.com>
---
 arch/riscv/boot/dts/starfive/jh7110.dtsi | 69 ++++++++++++++++++++++++
 1 file changed, 69 insertions(+)

diff --git a/arch/riscv/boot/dts/starfive/jh7110.dtsi b/arch/riscv/boot/dts/starfive/jh7110.dtsi
index 49dd62276b0d..6ff0796e8877 100644
--- a/arch/riscv/boot/dts/starfive/jh7110.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7110.dtsi
@@ -239,6 +239,13 @@
 		#clock-cells = <0>;
 	};
 
+	stmmac_axi_setup: stmmac-axi-config {
+		snps,lpi_en;
+		snps,wr_osr_lmt = <4>;
+		snps,rd_osr_lmt = <4>;
+		snps,blen = <256 128 64 32 0 0 0>;
+	};
+
 	tdm_ext: tdm-ext-clock {
 		compatible = "fixed-clock";
 		clock-output-names = "tdm_ext";
@@ -488,6 +495,68 @@
 			#gpio-cells = <2>;
 		};
 
+		gmac0: ethernet@16030000 {
+			compatible = "starfive,jh7110-dwmac", "snps,dwmac-5.20";
+			reg = <0x0 0x16030000 0x0 0x10000>;
+			clocks = <&aoncrg JH7110_AONCLK_GMAC0_AXI>,
+				 <&aoncrg JH7110_AONCLK_GMAC0_AHB>,
+				 <&syscrg JH7110_SYSCLK_GMAC0_PTP>,
+				 <&aoncrg JH7110_AONCLK_GMAC0_TX_INV>,
+				 <&syscrg JH7110_SYSCLK_GMAC0_GTXC>;
+			clock-names = "stmmaceth", "pclk", "ptp_ref",
+				      "tx", "gtx";
+			resets = <&aoncrg JH7110_AONRST_GMAC0_AXI>,
+				 <&aoncrg JH7110_AONRST_GMAC0_AHB>;
+			reset-names = "stmmaceth", "ahb";
+			interrupts = <7>, <6>, <5>;
+			interrupt-names = "macirq", "eth_wake_irq", "eth_lpi";
+			snps,multicast-filter-bins = <64>;
+			snps,perfect-filter-entries = <8>;
+			rx-fifo-depth = <2048>;
+			tx-fifo-depth = <2048>;
+			snps,fixed-burst;
+			snps,no-pbl-x8;
+			snps,force_thresh_dma_mode;
+			snps,axi-config = <&stmmac_axi_setup>;
+			snps,tso;
+			snps,en-tx-lpi-clockgating;
+			snps,txpbl = <16>;
+			snps,rxpbl = <16>;
+			starfive,syscon = <&aon_syscon 0xc 0x12>;
+			status = "disabled";
+		};
+
+		gmac1: ethernet@16040000 {
+			compatible = "starfive,jh7110-dwmac", "snps,dwmac-5.20";
+			reg = <0x0 0x16040000 0x0 0x10000>;
+			clocks = <&syscrg JH7110_SYSCLK_GMAC1_AXI>,
+				 <&syscrg JH7110_SYSCLK_GMAC1_AHB>,
+				 <&syscrg JH7110_SYSCLK_GMAC1_PTP>,
+				 <&syscrg JH7110_SYSCLK_GMAC1_TX_INV>,
+				 <&syscrg JH7110_SYSCLK_GMAC1_GTXC>;
+			clock-names = "stmmaceth", "pclk", "ptp_ref",
+				      "tx", "gtx";
+			resets = <&syscrg JH7110_SYSRST_GMAC1_AXI>,
+				 <&syscrg JH7110_SYSRST_GMAC1_AHB>;
+			reset-names = "stmmaceth", "ahb";
+			interrupts = <78>, <77>, <76>;
+			interrupt-names = "macirq", "eth_wake_irq", "eth_lpi";
+			snps,multicast-filter-bins = <64>;
+			snps,perfect-filter-entries = <8>;
+			rx-fifo-depth = <2048>;
+			tx-fifo-depth = <2048>;
+			snps,fixed-burst;
+			snps,no-pbl-x8;
+			snps,force_thresh_dma_mode;
+			snps,axi-config = <&stmmac_axi_setup>;
+			snps,tso;
+			snps,en-tx-lpi-clockgating;
+			snps,txpbl = <16>;
+			snps,rxpbl = <16>;
+			starfive,syscon = <&sys_syscon 0x90 0x2>;
+			status = "disabled";
+		};
+
 		aoncrg: clock-controller@17000000 {
 			compatible = "starfive,jh7110-aoncrg";
 			reg = <0x0 0x17000000 0x0 0x10000>;
-- 
2.17.1


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[PATCH v6 8/8] riscv: dts: starfive: visionfive 2: Add configuration of gmac and phy

[Samin Guo]

v1.3B:
  v1.3B uses motorcomm YT8531(rgmii-id phy) x2, need delay and
  inverse configurations.
  The tx_clk of v1.3B uses an external clock and needs to be
  switched to an external clock source.

v1.2A:
  v1.2A gmac0 uses motorcomm YT8531(rgmii-id) PHY, and needs delay
  configurations.
  v1.2A gmac1 uses motorcomm YT8512(rmii) PHY, and needs to
  switch rx and rx to external clock sources.

Signed-off-by: Samin Guo <samin.guo@starfivetech.com>
---
 .../jh7110-starfive-visionfive-2-v1.2a.dts    | 13 ++++++++
 .../jh7110-starfive-visionfive-2-v1.3b.dts    | 27 ++++++++++++++++
 .../jh7110-starfive-visionfive-2.dtsi         | 32 +++++++++++++++++++
 3 files changed, 72 insertions(+)

diff --git a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2-v1.2a.dts b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2-v1.2a.dts
index 4af3300f3cf3..205a13d8c8b1 100644
--- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2-v1.2a.dts
+++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2-v1.2a.dts
@@ -11,3 +11,16 @@
 	model = "StarFive VisionFive 2 v1.2A";
 	compatible = "starfive,visionfive-2-v1.2a", "starfive,jh7110";
 };
+
+&gmac1 {
+	phy-mode = "rmii";
+	assigned-clocks = <&syscrg JH7110_SYSCLK_GMAC1_TX>,
+			  <&syscrg JH7110_SYSCLK_GMAC1_RX>;
+	assigned-clock-parents = <&syscrg JH7110_SYSCLK_GMAC1_RMII_RTX>,
+				 <&syscrg JH7110_SYSCLK_GMAC1_RMII_RTX>;
+};
+
+&phy0 {
+	rx-internal-delay-ps = <1900>;
+	tx-internal-delay-ps = <1350>;
+};
diff --git a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2-v1.3b.dts b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2-v1.3b.dts
index 9230cc3d8946..32fae0de9a44 100644
--- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2-v1.3b.dts
+++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2-v1.3b.dts
@@ -11,3 +11,30 @@
 	model = "StarFive VisionFive 2 v1.3B";
 	compatible = "starfive,visionfive-2-v1.3b", "starfive,jh7110";
 };
+
+&gmac0 {
+	starfive,tx-use-rgmii-clk;
+	assigned-clocks = <&aoncrg JH7110_AONCLK_GMAC0_TX>;
+	assigned-clock-parents = <&aoncrg JH7110_AONCLK_GMAC0_RMII_RTX>;
+};
+
+&gmac1 {
+	starfive,tx-use-rgmii-clk;
+	assigned-clocks = <&syscrg JH7110_SYSCLK_GMAC1_TX>;
+	assigned-clock-parents = <&syscrg JH7110_SYSCLK_GMAC1_RMII_RTX>;
+};
+
+&phy0 {
+	motorcomm,tx-clk-adj-enabled;
+	motorcomm,tx-clk-100-inverted;
+	motorcomm,tx-clk-1000-inverted;
+	rx-internal-delay-ps = <1900>;
+	tx-internal-delay-ps = <1500>;
+};
+
+&phy1 {
+	motorcomm,tx-clk-adj-enabled;
+	motorcomm,tx-clk-100-inverted;
+	rx-internal-delay-ps = <0>;
+	tx-internal-delay-ps = <0>;
+};
diff --git a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
index 2a6d81609284..ce6664071f40 100644
--- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
@@ -11,6 +11,8 @@
 
 / {
 	aliases {
+		ethernet0 = &gmac0;
+		ethernet1 = &gmac1;
 		i2c0 = &i2c0;
 		i2c2 = &i2c2;
 		i2c5 = &i2c5;
@@ -86,6 +88,36 @@
 	clock-frequency = <49152000>;
 };
 
+&gmac0 {
+	phy-handle = <&phy0>;
+	phy-mode = "rgmii-id";
+	status = "okay";
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "snps,dwmac-mdio";
+
+		phy0: ethernet-phy@0 {
+			reg = <0>;
+		};
+	};
+};
+
+&gmac1 {
+	phy-handle = <&phy1>;
+	phy-mode = "rgmii-id";
+	status = "okay";
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "snps,dwmac-mdio";
+
+		phy1: ethernet-phy@1 {
+			reg = <0>;
+		};
+	};
+};
+
 &i2c0 {
 	clock-frequency = <100000>;
 	i2c-sda-hold-time-ns = <300>;
-- 
2.17.1

[PATCH v6 8/8] riscv: dts: starfive: visionfive 2: Add configuration of gmac and phy

[Samin Guo]

v1.3B:
  v1.3B uses motorcomm YT8531(rgmii-id phy) x2, need delay and
  inverse configurations.
  The tx_clk of v1.3B uses an external clock and needs to be
  switched to an external clock source.

v1.2A:
  v1.2A gmac0 uses motorcomm YT8531(rgmii-id) PHY, and needs delay
  configurations.
  v1.2A gmac1 uses motorcomm YT8512(rmii) PHY, and needs to
  switch rx and rx to external clock sources.

Signed-off-by: Samin Guo <samin.guo@starfivetech.com>
---
 .../jh7110-starfive-visionfive-2-v1.2a.dts    | 13 ++++++++
 .../jh7110-starfive-visionfive-2-v1.3b.dts    | 27 ++++++++++++++++
 .../jh7110-starfive-visionfive-2.dtsi         | 32 +++++++++++++++++++
 3 files changed, 72 insertions(+)

diff --git a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2-v1.2a.dts b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2-v1.2a.dts
index 4af3300f3cf3..205a13d8c8b1 100644
--- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2-v1.2a.dts
+++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2-v1.2a.dts
@@ -11,3 +11,16 @@
 	model = "StarFive VisionFive 2 v1.2A";
 	compatible = "starfive,visionfive-2-v1.2a", "starfive,jh7110";
 };
+
+&gmac1 {
+	phy-mode = "rmii";
+	assigned-clocks = <&syscrg JH7110_SYSCLK_GMAC1_TX>,
+			  <&syscrg JH7110_SYSCLK_GMAC1_RX>;
+	assigned-clock-parents = <&syscrg JH7110_SYSCLK_GMAC1_RMII_RTX>,
+				 <&syscrg JH7110_SYSCLK_GMAC1_RMII_RTX>;
+};
+
+&phy0 {
+	rx-internal-delay-ps = <1900>;
+	tx-internal-delay-ps = <1350>;
+};
diff --git a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2-v1.3b.dts b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2-v1.3b.dts
index 9230cc3d8946..32fae0de9a44 100644
--- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2-v1.3b.dts
+++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2-v1.3b.dts
@@ -11,3 +11,30 @@
 	model = "StarFive VisionFive 2 v1.3B";
 	compatible = "starfive,visionfive-2-v1.3b", "starfive,jh7110";
 };
+
+&gmac0 {
+	starfive,tx-use-rgmii-clk;
+	assigned-clocks = <&aoncrg JH7110_AONCLK_GMAC0_TX>;
+	assigned-clock-parents = <&aoncrg JH7110_AONCLK_GMAC0_RMII_RTX>;
+};
+
+&gmac1 {
+	starfive,tx-use-rgmii-clk;
+	assigned-clocks = <&syscrg JH7110_SYSCLK_GMAC1_TX>;
+	assigned-clock-parents = <&syscrg JH7110_SYSCLK_GMAC1_RMII_RTX>;
+};
+
+&phy0 {
+	motorcomm,tx-clk-adj-enabled;
+	motorcomm,tx-clk-100-inverted;
+	motorcomm,tx-clk-1000-inverted;
+	rx-internal-delay-ps = <1900>;
+	tx-internal-delay-ps = <1500>;
+};
+
+&phy1 {
+	motorcomm,tx-clk-adj-enabled;
+	motorcomm,tx-clk-100-inverted;
+	rx-internal-delay-ps = <0>;
+	tx-internal-delay-ps = <0>;
+};
diff --git a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
index 2a6d81609284..ce6664071f40 100644
--- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
@@ -11,6 +11,8 @@
 
 / {
 	aliases {
+		ethernet0 = &gmac0;
+		ethernet1 = &gmac1;
 		i2c0 = &i2c0;
 		i2c2 = &i2c2;
 		i2c5 = &i2c5;
@@ -86,6 +88,36 @@
 	clock-frequency = <49152000>;
 };
 
+&gmac0 {
+	phy-handle = <&phy0>;
+	phy-mode = "rgmii-id";
+	status = "okay";
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "snps,dwmac-mdio";
+
+		phy0: ethernet-phy@0 {
+			reg = <0>;
+		};
+	};
+};
+
+&gmac1 {
+	phy-handle = <&phy1>;
+	phy-mode = "rgmii-id";
+	status = "okay";
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "snps,dwmac-mdio";
+
+		phy1: ethernet-phy@1 {
+			reg = <0>;
+		};
+	};
+};
+
 &i2c0 {
 	clock-frequency = <100000>;
 	i2c-sda-hold-time-ns = <300>;
-- 
2.17.1


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Re: [PATCH v6 0/8] Add Ethernet driver for StarFive JH7110 SoC

[Jakub Kicinski]

On Mon, 13 Mar 2023 11:46:37 +0800 Samin Guo wrote:
> This series adds ethernet support for the StarFive JH7110 RISC-V SoC.
> The series includes MAC driver. The MAC version is dwmac-5.20 (from
> Synopsys DesignWare). For more information and support, you can visit
> RVspace wiki[1].

I'm guessing the first 6 patches need to go via networking and patches
7 and 8 via riscv trees? Please repost those separately, otherwise
the series won't apply and relevant CIs can't run on it.

Re: [PATCH v6 0/8] Add Ethernet driver for StarFive JH7110 SoC

[Jakub Kicinski]

On Mon, 13 Mar 2023 11:46:37 +0800 Samin Guo wrote:
> This series adds ethernet support for the StarFive JH7110 RISC-V SoC.
> The series includes MAC driver. The MAC version is dwmac-5.20 (from
> Synopsys DesignWare). For more information and support, you can visit
> RVspace wiki[1].

I'm guessing the first 6 patches need to go via networking and patches
7 and 8 via riscv trees? Please repost those separately, otherwise
the series won't apply and relevant CIs can't run on it.

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Re: [PATCH v6 0/8] Add Ethernet driver for StarFive JH7110 SoC

[Guo Samin]

Re: [PATCH v6 0/8] Add Ethernet driver for StarFive JH7110 SoC
From: Jakub Kicinski <kuba@kernel.org>
to: Samin Guo <samin.guo@starfivetech.com>
data: 2023/3/14

> On Mon, 13 Mar 2023 11:46:37 +0800 Samin Guo wrote:
>> This series adds ethernet support for the StarFive JH7110 RISC-V SoC.
>> The series includes MAC driver. The MAC version is dwmac-5.20 (from
>> Synopsys DesignWare). For more information and support, you can visit
>> RVspace wiki[1].
> 
> I'm guessing the first 6 patches need to go via networking and patches
> 7 and 8 via riscv trees? Please repost those separately, otherwise
> the series won't apply and relevant CIs can't run on it.

Hi Jakub,

	Thanks a lot, I will repost those separately.

Best regards,
Samin

Re: [PATCH v6 0/8] Add Ethernet driver for StarFive JH7110 SoC

[Guo Samin]

Re: [PATCH v6 0/8] Add Ethernet driver for StarFive JH7110 SoC
From: Jakub Kicinski <kuba@kernel.org>
to: Samin Guo <samin.guo@starfivetech.com>
data: 2023/3/14

> On Mon, 13 Mar 2023 11:46:37 +0800 Samin Guo wrote:
>> This series adds ethernet support for the StarFive JH7110 RISC-V SoC.
>> The series includes MAC driver. The MAC version is dwmac-5.20 (from
>> Synopsys DesignWare). For more information and support, you can visit
>> RVspace wiki[1].
> 
> I'm guessing the first 6 patches need to go via networking and patches
> 7 and 8 via riscv trees? Please repost those separately, otherwise
> the series won't apply and relevant CIs can't run on it.

Hi Jakub,

	Thanks a lot, I will repost those separately.

Best regards,
Samin

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Re: [PATCH v6 0/8] Add Ethernet driver for StarFive JH7110 SoC

[Aurelien Jarno]

Hi,

On 2023-03-15 09:31, Guo Samin wrote:
> Re: [PATCH v6 0/8] Add Ethernet driver for StarFive JH7110 SoC
> From: Jakub Kicinski <kuba@kernel.org>
> to: Samin Guo <samin.guo@starfivetech.com>
> data: 2023/3/14
> 
> > On Mon, 13 Mar 2023 11:46:37 +0800 Samin Guo wrote:
> >> This series adds ethernet support for the StarFive JH7110 RISC-V SoC.
> >> The series includes MAC driver. The MAC version is dwmac-5.20 (from
> >> Synopsys DesignWare). For more information and support, you can visit
> >> RVspace wiki[1].
> > 
> > I'm guessing the first 6 patches need to go via networking and patches
> > 7 and 8 via riscv trees? Please repost those separately, otherwise
> > the series won't apply and relevant CIs can't run on it.
> 
> Hi Jakub,
> 
> 	Thanks a lot, I will repost those separately.

Unless I am mistaken, this patches haven't been reposted since them.
Could you please do that?

Thanks
Aurelien

-- 
Aurelien Jarno                          GPG: 4096R/1DDD8C9B
aurelien@aurel32.net                     http://aurel32.net

Re: [PATCH v6 0/8] Add Ethernet driver for StarFive JH7110 SoC

[Aurelien Jarno]

Hi,

On 2023-03-15 09:31, Guo Samin wrote:
> Re: [PATCH v6 0/8] Add Ethernet driver for StarFive JH7110 SoC
> From: Jakub Kicinski <kuba@kernel.org>
> to: Samin Guo <samin.guo@starfivetech.com>
> data: 2023/3/14
> 
> > On Mon, 13 Mar 2023 11:46:37 +0800 Samin Guo wrote:
> >> This series adds ethernet support for the StarFive JH7110 RISC-V SoC.
> >> The series includes MAC driver. The MAC version is dwmac-5.20 (from
> >> Synopsys DesignWare). For more information and support, you can visit
> >> RVspace wiki[1].
> > 
> > I'm guessing the first 6 patches need to go via networking and patches
> > 7 and 8 via riscv trees? Please repost those separately, otherwise
> > the series won't apply and relevant CIs can't run on it.
> 
> Hi Jakub,
> 
> 	Thanks a lot, I will repost those separately.

Unless I am mistaken, this patches haven't been reposted since them.
Could you please do that?

Thanks
Aurelien

-- 
Aurelien Jarno                          GPG: 4096R/1DDD8C9B
aurelien@aurel32.net                     http://aurel32.net

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Re: [PATCH v6 0/8] Add Ethernet driver for StarFive JH7110 SoC

[Guo Samin]

Re: [PATCH v6 0/8] Add Ethernet driver for StarFive JH7110 SoC
From: Aurelien Jarno <aurelien@aurel32.net>
tro: Guo Samin <samin.guo@starfivetech.com>
data: 2023/7/2

> Hi,
> 
> On 2023-03-15 09:31, Guo Samin wrote:
>> Re: [PATCH v6 0/8] Add Ethernet driver for StarFive JH7110 SoC
>> From: Jakub Kicinski <kuba@kernel.org>
>> to: Samin Guo <samin.guo@starfivetech.com>
>> data: 2023/3/14
>>
>>> On Mon, 13 Mar 2023 11:46:37 +0800 Samin Guo wrote:
>>>> This series adds ethernet support for the StarFive JH7110 RISC-V SoC.
>>>> The series includes MAC driver. The MAC version is dwmac-5.20 (from
>>>> Synopsys DesignWare). For more information and support, you can visit
>>>> RVspace wiki[1].
>>>
>>> I'm guessing the first 6 patches need to go via networking and patches
>>> 7 and 8 via riscv trees? Please repost those separately, otherwise
>>> the series won't apply and relevant CIs can't run on it.
>>
>> Hi Jakub,
>>
>> 	Thanks a lot, I will repost those separately.
> 
> Unless I am mistaken, this patches haven't been reposted since them.
> Could you please do that?
> 
> Thanks
> Aurelien
> 

Hi Aurelien,

Sorry for not having an update in a while. I'm waiting for the configuration of PHY to be finalized and the SYSCON patch to finally be merged in.
1) There are some updates to visionfive 2's PHY Drive Strength[1], but the implementation has not yet been finalized. Of course this is not the most important thing, since it can be updated later.
2) DTS depends on SYSCON. If the patch about SYSCON[2] has not been merged into the main line, there will be compilation problems. SYSCON's patch is part of Xingyu's PLL patchsets, and if the parts of SYSCON could be merged first, there would be no problem.

[1]: https://patchwork.kernel.org/project/netdevbpf/cover/20230526090502.29835-1-samin.guo@starfivetech.com
[2]: https://patchwork.kernel.org/project/linux-riscv/patch/20230613125852.211636-7-xingyu.wu@starfivetech.com
 
Best regards,
Samin

Re: [PATCH v6 0/8] Add Ethernet driver for StarFive JH7110 SoC

[Guo Samin]

Re: [PATCH v6 0/8] Add Ethernet driver for StarFive JH7110 SoC
From: Aurelien Jarno <aurelien@aurel32.net>
tro: Guo Samin <samin.guo@starfivetech.com>
data: 2023/7/2

> Hi,
> 
> On 2023-03-15 09:31, Guo Samin wrote:
>> Re: [PATCH v6 0/8] Add Ethernet driver for StarFive JH7110 SoC
>> From: Jakub Kicinski <kuba@kernel.org>
>> to: Samin Guo <samin.guo@starfivetech.com>
>> data: 2023/3/14
>>
>>> On Mon, 13 Mar 2023 11:46:37 +0800 Samin Guo wrote:
>>>> This series adds ethernet support for the StarFive JH7110 RISC-V SoC.
>>>> The series includes MAC driver. The MAC version is dwmac-5.20 (from
>>>> Synopsys DesignWare). For more information and support, you can visit
>>>> RVspace wiki[1].
>>>
>>> I'm guessing the first 6 patches need to go via networking and patches
>>> 7 and 8 via riscv trees? Please repost those separately, otherwise
>>> the series won't apply and relevant CIs can't run on it.
>>
>> Hi Jakub,
>>
>> 	Thanks a lot, I will repost those separately.
> 
> Unless I am mistaken, this patches haven't been reposted since them.
> Could you please do that?
> 
> Thanks
> Aurelien
> 

Hi Aurelien,

Sorry for not having an update in a while. I'm waiting for the configuration of PHY to be finalized and the SYSCON patch to finally be merged in.
1) There are some updates to visionfive 2's PHY Drive Strength[1], but the implementation has not yet been finalized. Of course this is not the most important thing, since it can be updated later.
2) DTS depends on SYSCON. If the patch about SYSCON[2] has not been merged into the main line, there will be compilation problems. SYSCON's patch is part of Xingyu's PLL patchsets, and if the parts of SYSCON could be merged first, there would be no problem.

[1]: https://patchwork.kernel.org/project/netdevbpf/cover/20230526090502.29835-1-samin.guo@starfivetech.com
[2]: https://patchwork.kernel.org/project/linux-riscv/patch/20230613125852.211636-7-xingyu.wu@starfivetech.com
 
Best regards,
Samin

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