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D36274.id109602.diff
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diff --git a/share/man/man4/cgem.4 b/share/man/man4/cgem.4
--- a/share/man/man4/cgem.4
+++ b/share/man/man4/cgem.4
@@ -39,13 +39,19 @@
.Cd "device miibus"
.Cd "device cgem"
.Ed
+.Pp
+To load the driver as a module at boot time, place the following line in
+.Xr loader.conf 5 :
+.Bd -literal -offset indent
+if_cgem_load="YES"
+.Ed
.Sh DESCRIPTION
The
.Nm
driver provides support for the Cadence GEM (Gigabit Ethernet MAC).
The Cadence GEM is used in some SoC (System on a Chip) devices such as
-the Xilinx Zynq-7000, the Xilinx Zynq UltraScale+, and the SiFive
-HiFive Unleashed.
+the Xilinx Zynq-7000, the Xilinx Zynq UltraScale+, the SiFive
+HiFive Unleashed, and the Microchip PolarFire SoC.
.Pp
The
.Nm
@@ -98,6 +104,14 @@
The driver provides support for TCP/UDP/IP checksum offloading (although
disabled by default).
The device and driver also support 1536-byte frames for VLANs (vlanmtu).
+.Pp
+The
+.Nm
+driver's default MAC to PHY connection type is GMII/RGMII, it is
+possible to use SGMII when declared in device tree like
+.Bd -literal -offset indent
+phy-mode = "sgmii";
+.Ed
.Sh SYSCTL VARIABLES
The following variables are available as both
.Xr sysctl 8
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D36274: Document additions from reviews D34687 and D34764 in cgem.4 manpage
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