Re: [PATCH net-next 4/6] r8169: add ERI functions

@@ -1046,6 +1046,49 @@ static u32 rtl_csi_read(void __iomem *ioaddr, int addr)
 	return value;
 }
 
+static
+void rtl_eri_write(void __iomem *ioaddr, int addr, u32 mask, u32 val, int type)
+{
+	unsigned int i;
+
+	BUG_ON((addr & 3) || (mask == 0));
+	RTL_W32(ERIDR, val);
+	RTL_W32(ERIAR, ERIAR_WRITE_CMD | type | mask | addr);
+
+	for (i = 0; i < 100; i++) {
+		udelay(100);
+		if (!(RTL_R32(ERIAR) & ERIAR_FLAG))
+			break;