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D61269.1794671930.diff
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diff --git a/sys/dev/mii/lan867xphy.c b/sys/dev/mii/lan867xphy.c
--- a/sys/dev/mii/lan867xphy.c
+++ b/sys/dev/mii/lan867xphy.c
@@ -10,7 +10,6 @@
* This driver is sufficient for basic connectivity with CSMA/CD.
*
* TODO:
- * - Revision-specific configuration for D0 silicon
* - PHY-Level Collision Avoidance (PLCA) configuration
* - Sleep mode (C2, D0 and later)
* - Topology discovery (D0 and later)
@@ -48,6 +47,7 @@
/* Silicon revisions. */
#define LAN867X_REV_C2 5
+#define LAN867X_REV_D0 6
struct lan867x_cfg_fixup {
uint16_t address;
@@ -161,6 +161,32 @@
nitems(lan867x_cfgdata_revc_part2));
}
+/*
+ * Hardware revision D0 configuration parameters.
+ *
+ * From Microchip AN1699 LAN8670/1/2 Configuration Application Note
+ * (Revision G, October 2025).
+ */
+static const struct lan867x_cfg_fixup lan867x_cfgdata_revd[] = {
+ { 0x0037, 0x0800 },
+ { 0x008a, 0xbfc0 },
+ { 0x0118, 0x029c },
+ { 0x00d6, 0x1001 },
+ { 0x0082, 0x001c },
+ /* Per AN1699, write 0x00fd twice with different values. */
+ { 0x00fd, 0x0c0b },
+ { 0x00fd, 0x8c07 },
+ { 0x0091, 0x9660 },
+ /* 0x0012 (LSCTL) to be added along with link state reporting. */
+};
+
+static void
+lan867xphy_config_revd(struct mii_softc *sc)
+{
+ lan867xphy_config(sc, lan867x_cfgdata_revd,
+ nitems(lan867x_cfgdata_revd));
+}
+
static int lan867x_probe(device_t);
static int lan867x_attach(device_t);
@@ -202,6 +228,9 @@
case LAN867X_REV_C2:
lan867xphy_config_revc(sc);
break;
+ case LAN867X_REV_D0:
+ lan867xphy_config_revd(sc);
+ break;
}
/* XXX apply PLCA settings */
@@ -247,6 +276,7 @@
switch (sc->mii_mpd_rev) {
case LAN867X_REV_C2:
+ case LAN867X_REV_D0:
break;
default:
device_printf(dev,

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