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Date: Fri, 29 Mar 2024 16:09:49 +0800 From: Richard Zhu <hongxing.zhu@....com> To: vkoul@...nel.org, kishon@...nel.org, robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org, frank.li@....com Cc: hongxing.zhu@....com, linux-phy@...ts.infradead.org, devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, kernel@...gutronix.de, linux-imx@....com Subject: [PATCH v1 2/3] dt-bindings: phy: phy-imx8-pcie: Add binding for i.MX8Q HSIO SerDes PHY Add binding for controller ID and HSIO configuration setting of the i.MX8Q HSIO SerDes PHY. Signed-off-by: Richard Zhu <hongxing.zhu@....com> --- include/dt-bindings/phy/phy-imx8-pcie.h | 26 +++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/include/dt-bindings/phy/phy-imx8-pcie.h b/include/dt-bindings/phy/phy-imx8-pcie.h index 8bbe2d6538d8..5cd5580879fa 100644 --- a/include/dt-bindings/phy/phy-imx8-pcie.h +++ b/include/dt-bindings/phy/phy-imx8-pcie.h @@ -11,4 +11,30 @@ #define IMX8_PCIE_REFCLK_PAD_INPUT 1 #define IMX8_PCIE_REFCLK_PAD_OUTPUT 2 +/* + * i.MX8QM HSIO subsystem has three lane PHYs and three controllers: + * PCIEA(2 lanes capapble PCIe controller), PCIEB (only support one + * lane) and SATA. + * In the different use cases. PCIEA can be binded to PHY lane0, lane1 + * or Lane0 and lane1. PCIEB can be binded to lane1 or lane2 PHY. SATA + * can only be binded to last lane2 PHY. + * Define i.MX8Q HSIO controller ID here to specify the controller + * binded to the PHY. + * Meanwhile, i.MX8QXP HSIO subsystem has one lane PHY and PCIEB(only + * support one lane) controller. + */ +#define IMX8Q_HSIO_PCIEA_ID 0 +#define IMX8Q_HSIO_PCIEB_ID 1 +#define IMX8Q_HSIO_SATA_ID 2 + +/* + * On i.MX8QM, PCIEA is mandatory required if the HSIO is enabled. + * Define configurations beside PCIEA is enabled. + * On i.MX8QXP, HSIO module only has PCIEB and one lane PHY. + * The "IMX8Q_HSIO_CFG_PCIEB" can be used on i.MX8QXP platforms. + */ +#define IMX8Q_HSIO_CFG_SATA 1 +#define IMX8Q_HSIO_CFG_PCIEB 2 +#define IMX8Q_HSIO_CFG_PCIEBSATA 3 + #endif /* _DT_BINDINGS_IMX8_PCIE_H */ -- 2.37.1
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