This adds appropriate bindings for the macs which use the SerDes. The 156.25MHz fixed clock is a crystal. The 100MHz clocks (there are actually 3) come from a Renesas 6V49205B at address 69 on i2c0. There is no driver for this device (and as far as I know all you can do with the 100MHz clocks is gate them), so I have chosen to model it as a single fixed clock.
Note: the SerDes1 lane numbering for the LS1046A is *reversed*. This means that Lane A (what the driver thinks is lane 0) uses pins SD1_TX3_P/N. Because this will break ethernet if the serdes is not enabled, enable the serdes driver by default on Layerscape. Signed-off-by: Sean Anderson <sean.ander...@seco.com> --- This depends on [1]. [1] https://lore.kernel.org/netdev/20220804194705.459670-4-sean.ander...@seco.com/ Changes in v9: - Fix name of phy mode node - phy-type -> fsl,phy Changes in v8: - Rename serdes phy handles to use _A, _B, etc. instead of _0, _1, etc. This should help remind readers that the numbering corresponds to the physical layout of the registers, and not the lane (pin) number. Changes in v6: - XGI.9 -> XFI.9 Changes in v4: - Convert to new bindings .../boot/dts/freescale/fsl-ls1046a-rdb.dts | 112 ++++++++++++++++++ drivers/phy/freescale/Kconfig | 1 + 2 files changed, 113 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts index 7025aad8ae89..534f19855b47 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts +++ b/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts @@ -10,6 +10,8 @@ /dts-v1/; +#include <dt-bindings/phy/phy.h> + #include "fsl-ls1046a.dtsi" / { @@ -26,8 +28,110 @@ aliases { chosen { stdout-path = "serial0:115200n8"; }; + + clocks { + clk_100mhz: clock-100mhz { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <100000000>; + }; + + clk_156mhz: clock-156mhz { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <156250000>; + }; + }; }; +&serdes1 { + clocks = <&clk_100mhz>, <&clk_156mhz>; + clock-names = "ref0", "ref1"; + status = "okay"; + + /* + * XXX: Lane A uses pins SD1_RX3_P/N! That is, the lane numbers and pin + * numbers are _reversed_. In addition, the PCCR documentation is + * _inconsistent_ in its usage of these terms! + * + * PCCR "Lane 0" refers to... + * ==== ===================== + * 0 Lane A + * 2 Lane A + * 8 Lane A + * 9 Lane A + * B Lane D! + */ + serdes1_A: phy@0 { + #phy-cells = <0>; + reg = <0>; + + /* SGMII.6 */ + sgmii-0 { + fsl,pccr = <0x8>; + fsl,index = <0>; + fsl,cfg = <0x1>; + fsl,type = <PHY_TYPE_SGMII>; + }; + }; + + serdes1_B: phy@1 { + #phy-cells = <0>; + reg = <1>; + + /* SGMII.5 */ + sgmii-1 { + fsl,pccr = <0x8>; + fsl,index = <1>; + fsl,cfg = <0x1>; + fsl,type = <PHY_TYPE_2500BASEX>; + }; + }; + + serdes1_C: phy@2 { + #phy-cells = <0>; + reg = <2>; + + /* SGMII.10 */ + sgmii-2 { + fsl,pccr = <0x8>; + fsl,index = <2>; + fsl,cfg = <0x1>; + fsl,type = <PHY_TYPE_2500BASEX>; + }; + + /* XFI.10 */ + xfi-0 { + fsl,pccr = <0xb>; + fsl,index = <0>; + fsl,cfg = <0x2>; + fsl,type = <PHY_TYPE_10GBASER>; + }; + }; + + serdes1_D: phy@3 { + #phy-cells = <0>; + reg = <3>; + + /* SGMII.9 */ + sgmii-3 { + fsl,pccr = <0x8>; + fsl,index = <3>; + fsl,cfg = <0x1>; + fsl,type = <PHY_TYPE_2500BASEX>; + }; + + /* XFI.9 */ + xfi-1 { + fsl,pccr = <0xb>; + fsl,index = <1>; + fsl,cfg = <0x1>; + fsl,type = <PHY_TYPE_10GBASER>; + }; + }; +}; + + &duart0 { status = "okay"; }; @@ -140,21 +244,29 @@ ethernet@e6000 { ethernet@e8000 { phy-handle = <&sgmii_phy1>; phy-connection-type = "sgmii"; + phys = <&serdes1_B>; + phy-names = "serdes"; }; ethernet@ea000 { phy-handle = <&sgmii_phy2>; phy-connection-type = "sgmii"; + phys = <&serdes1_A>; + phy-names = "serdes"; }; ethernet@f0000 { /* 10GEC1 */ phy-handle = <&aqr106_phy>; phy-connection-type = "xgmii"; + phys = <&serdes1_D>; + phy-names = "serdes"; }; ethernet@f2000 { /* 10GEC2 */ fixed-link = <0 1 1000 0 0>; phy-connection-type = "xgmii"; + phys = <&serdes1_C>; + phy-names = "serdes"; }; mdio@fc000 { diff --git a/drivers/phy/freescale/Kconfig b/drivers/phy/freescale/Kconfig index 6bebe00f5889..b396162dc859 100644 --- a/drivers/phy/freescale/Kconfig +++ b/drivers/phy/freescale/Kconfig @@ -54,6 +54,7 @@ config PHY_FSL_LYNX_10G depends on ARCH_LAYERSCAPE || PPC || COMPILE_TEST select GENERIC_PHY select REGMAP_MMIO + default y if ARCH_LAYERSCAPE help This adds support for the Lynx "SerDes" devices found on various QorIQ SoCs. There may be up to four SerDes devices on each SoC, and each -- 2.35.1.1320.gc452695387.dirty
