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authorAndrew Lunn <andrew@lunn.ch>2019-01-09 00:24:03 +0100
committerDavid S. Miller <davem@davemloft.net>2019-01-10 16:53:46 -0500
commitea89098ef9a574bceca00d3b5df14aaf0b3f9ccf (patch)
treee297bdc4b07f14ad205a03f50c4d572c60285c96 /drivers/net/dsa/mv88e6xxx/port.h
parentbonding: update nest level on unlink (diff)
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linux-dev-ea89098ef9a574bceca00d3b5df14aaf0b3f9ccf.zip
net: dsa: mv88x6xxx: mv88e6390 errata
The 6390 copper ports have an errata which require poking magic values into undocumented magic registers and then performing a software reset. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
-rw-r--r--drivers/net/dsa/mv88e6xxx/port.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/port.h b/drivers/net/dsa/mv88e6xxx/port.h
index 0d81866d0e4a..e583641de758 100644
--- a/drivers/net/dsa/mv88e6xxx/port.h
+++ b/drivers/net/dsa/mv88e6xxx/port.h
@@ -251,6 +251,16 @@
/* Offset 0x19: Port IEEE Priority Remapping Registers (4-7) */
#define MV88E6095_PORT_IEEE_PRIO_REMAP_4567 0x19
+/* Offset 0x1a: Magic undocumented errata register */
+#define PORT_RESERVED_1A 0x1a
+#define PORT_RESERVED_1A_BUSY BIT(15)
+#define PORT_RESERVED_1A_WRITE BIT(14)
+#define PORT_RESERVED_1A_READ 0
+#define PORT_RESERVED_1A_PORT_SHIFT 5
+#define PORT_RESERVED_1A_BLOCK (0xf << 10)
+#define PORT_RESERVED_1A_CTRL_PORT 4
+#define PORT_RESERVED_1A_DATA_PORT 5
+
int mv88e6xxx_port_read(struct mv88e6xxx_chip *chip, int port, int reg,
u16 *val);
int mv88e6xxx_port_write(struct mv88e6xxx_chip *chip, int port, int reg,