diff mbox series

[v4,1/3] dt-bindings: phy: phy-imx8-pcie: Add header file for i.MX8Q HSIO SerDes PHY

Message ID 1715234181-672-2-git-send-email-hongxing.zhu@nxp.com
State Changes Requested
Headers show
Series Add i.MX8Q HSIO PHY support | expand

Checks

Context Check Description
robh/checkpatch success
robh/patch-applied success

Commit Message

Richard Zhu May 9, 2024, 5:56 a.m. UTC 
Add lane index and HSIO configuration definitions of the i.MX8Q HSIO
SerDes PHY into header file.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
---
 include/dt-bindings/phy/phy-imx8-pcie.h | 29 +++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
diff mbox series

Patch

diff --git a/include/dt-bindings/phy/phy-imx8-pcie.h b/include/dt-bindings/phy/phy-imx8-pcie.h
index 8bbe2d6538d8..8f65a77fca09 100644
--- a/include/dt-bindings/phy/phy-imx8-pcie.h
+++ b/include/dt-bindings/phy/phy-imx8-pcie.h
@@ -11,4 +11,33 @@ 
 #define IMX8_PCIE_REFCLK_PAD_INPUT	1
 #define IMX8_PCIE_REFCLK_PAD_OUTPUT	2
 
+/*
+ * Regarding the design of i.MX8QM HSIO subsystem, HSIO module can be
+ * confiured as following three use cases.
+ *
+ * Define different configurations refer to the use cases, since it is
+ * mandatory required in the initialization.
+ *
+ * On i.MX8QXP, HSIO module only has PCIEB and one lane PHY.
+ * Define "IMX8Q_HSIO_CFG_PCIEB" for i.MX8QXP platforms.
+ *
+ * +----------------------------------------------------+----------+
+ * |                               | i.MX8QM            | i.MX8QXP |
+ * |-------------------------------|--------------------|----------|
+ * |                               | Lane0| Lane1| Lane2| Lane0    |
+ * |-------------------------------|------|------|------|----------|
+ * | IMX8Q_HSIO_CFG_PCIEAX2SATA    | PCIEA| PCIEA| SATA |          |
+ * |-------------------------------|------|------|------|----------|
+ * | IMX8Q_HSIO_CFG_PCIEAX2PCIEB   | PCIEA| PCIEA| PCIEB|          |
+ * |-------------------------------|------|------|------|----------|
+ * | IMX8Q_HSIO_CFG_PCIEAPCIEBSATA | PCIEA| PCIEB| SATA |          |
+ * |-------------------------------|------|------|------|----------|
+ * | IMX8Q_HSIO_CFG_PCIEB          | -    | -    | -    | PCIEB    |
+ * +----------------------------------------------------+----------+
+ */
+#define IMX8Q_HSIO_CFG_PCIEAX2SATA	0x1
+#define IMX8Q_HSIO_CFG_PCIEAX2PCIEB	0x2
+#define IMX8Q_HSIO_CFG_PCIEAPCIEBSATA	(IMX8Q_HSIO_CFG_PCIEAX2SATA | IMX8Q_HSIO_CFG_PCIEAX2PCIEB)
+#define IMX8Q_HSIO_CFG_PCIEB		IMX8Q_HSIO_CFG_PCIEAX2PCIEB
+
 #endif /* _DT_BINDINGS_IMX8_PCIE_H */