net: dsa: microchip: ksz8795: add support for ksz88xx chips

We add support for the ksz8863 and ksz8873 chips which are
using the same register patterns but other offsets as the
ksz8795.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/dsa/microchip/ksz8795_reg.h

@@ -16,7 +16,8 @@
 
 #define REG_CHIP_ID0			0x00
 
-#define FAMILY_ID			0x87
+#define KSZ87_FAMILY_ID			0x87
+#define KSZ88_FAMILY_ID			0x88
 
 #define REG_CHIP_ID1			0x01
 
@@ -28,6 +29,12 @@
 
 #define CHIP_ID_94			0x60
 #define CHIP_ID_95			0x90
+#define CHIP_ID_63			0x30
+
+#define KSZ8863_REG_SW_RESET		0x43
+
+#define KSZ8863_GLOBAL_SOFTWARE_RESET	BIT(4)
+#define KSZ8863_PCS_RESET		BIT(0)
 
 #define REG_SW_CTRL_0			0x02
 
@@ -267,6 +274,7 @@
 #define REG_PORT_3_CTRL_9		0x3C
 #define REG_PORT_4_CTRL_9		0x4C
 
+#define PORT_AUTO_NEG_ENABLE		BIT(7)
 #define PORT_AUTO_NEG_DISABLE		BIT(7)
 #define PORT_FORCE_100_MBIT		BIT(6)
 #define PORT_FORCE_FULL_DUPLEX		BIT(5)
@@ -800,6 +808,7 @@
 
 #define KSZ8795_ID_HI			0x0022
 #define KSZ8795_ID_LO			0x1550
+#define KSZ8863_ID_LO			0x1430
 
 #define KSZ8795_SW_ID			0x8795
 
@@ -830,7 +839,7 @@
 
 #define KS_PRIO_IN_REG			4
 
-#define KSZ8795_COUNTER_NUM		0x20
+#define MIB_COUNTER_NUM		0x20
 
 /* Common names used by other drivers */
 
@@ -876,26 +885,13 @@
 
 #define MIB_COUNTER_VALUE		0x3FFFFFFF
 
-#define KS_MIB_TOTAL_RX_0		0x100
-#define KS_MIB_TOTAL_TX_0		0x101
-#define KS_MIB_PACKET_DROPPED_RX_0	0x102
-#define KS_MIB_PACKET_DROPPED_TX_0	0x103
-#define KS_MIB_TOTAL_RX_1		0x104
-#define KS_MIB_TOTAL_TX_1		0x105
-#define KS_MIB_PACKET_DROPPED_TX_1	0x106
-#define KS_MIB_PACKET_DROPPED_RX_1	0x107
-#define KS_MIB_TOTAL_RX_2		0x108
-#define KS_MIB_TOTAL_TX_2		0x109
-#define KS_MIB_PACKET_DROPPED_TX_2	0x10A
-#define KS_MIB_PACKET_DROPPED_RX_2	0x10B
-#define KS_MIB_TOTAL_RX_3		0x10C
-#define KS_MIB_TOTAL_TX_3		0x10D
-#define KS_MIB_PACKET_DROPPED_TX_3	0x10E
-#define KS_MIB_PACKET_DROPPED_RX_3	0x10F
-#define KS_MIB_TOTAL_RX_4		0x110
-#define KS_MIB_TOTAL_TX_4		0x111
-#define KS_MIB_PACKET_DROPPED_TX_4	0x112
-#define KS_MIB_PACKET_DROPPED_RX_4	0x113
+#define KSZ8795_MIB_TOTAL_RX_0		0x100
+#define KSZ8795_MIB_TOTAL_TX_0		0x101
+#define KSZ8795_MIB_TOTAL_RX_1		0x104
+#define KSZ8795_MIB_TOTAL_TX_1		0x105
+
+#define KSZ8863_MIB_PACKET_DROPPED_TX_0 0x100
+#define KSZ8863_MIB_PACKET_DROPPED_RX_0 0x105
 
 #define MIB_PACKET_DROPPED		0x0000FFFF
 

drivers/net/dsa/microchip/ksz_common.h

@@ -71,6 +71,7 @@ struct ksz_device {
 	int port_cnt;
 	int reg_mib_cnt;
 	int mib_cnt;
+	const struct mib_names *mib_names;
 	phy_interface_t compat_interface;
 	u32 regs_size;
 	bool phy_errata_9477;