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Message-Id: <20190821232724.1544-10-marek.behun@nic.cz>
Date: Thu, 22 Aug 2019 01:27:23 +0200
From: Marek Behún <marek.behun@....cz>
To: netdev@...r.kernel.org
Cc: Andrew Lunn <andrew@...n.ch>,
Vivien Didelot <vivien.didelot@...il.com>,
Florian Fainelli <f.fainelli@...il.com>,
Vladimir Oltean <olteanv@...il.com>,
Marek Behún <marek.behun@....cz>
Subject: [PATCH net-next 09/10] net: dsa: mv88e6xxx: support Block Address setting in hidden registers
Add support for setting the Block Address parameter when reading/writing
hidden registers. Marvell's mdio examples for SERDES settings on Topaz
use Block Address 0x7 when reading/writing hidden registers, although
the specification says that block must be set to 0xf.
Signed-off-by: Marek Behún <marek.behun@....cz>
---
drivers/net/dsa/mv88e6xxx/chip.c | 4 ++--
drivers/net/dsa/mv88e6xxx/hidden.c | 8 ++++----
drivers/net/dsa/mv88e6xxx/hidden.h | 8 +++++---
3 files changed, 11 insertions(+), 9 deletions(-)
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 96f7ac56dd02..9af6f3aeb83b 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -2326,7 +2326,7 @@ static bool mv88e6390_setup_errata_applied(struct mv88e6xxx_chip *chip)
u16 val;
for (port = 0; port < mv88e6xxx_num_ports(chip); port++) {
- err = mv88e6390_hidden_read(chip, port, 0, &val);
+ err = mv88e6390_hidden_read(chip, 0xf, port, 0, &val);
if (err) {
dev_err(chip->dev,
"Error reading hidden register: %d\n", err);
@@ -2359,7 +2359,7 @@ static int mv88e6390_setup_errata(struct mv88e6xxx_chip *chip)
}
for (port = 0; port < mv88e6xxx_num_ports(chip); port++) {
- err = mv88e6390_hidden_write(chip, port, 0, 0x01c0);
+ err = mv88e6390_hidden_write(chip, 0xf, port, 0, 0x01c0);
if (err)
return err;
}
diff --git a/drivers/net/dsa/mv88e6xxx/hidden.c b/drivers/net/dsa/mv88e6xxx/hidden.c
index efa93c776a30..d071c8810057 100644
--- a/drivers/net/dsa/mv88e6xxx/hidden.c
+++ b/drivers/net/dsa/mv88e6xxx/hidden.c
@@ -16,7 +16,7 @@
/* The mv88e6390 and mv88e6341 have some hidden registers used for debug and
* development. The errata also makes use of them.
*/
-int mv88e6390_hidden_write(struct mv88e6xxx_chip *chip, int port,
+int mv88e6390_hidden_write(struct mv88e6xxx_chip *chip, int block, int port,
int reg, u16 val)
{
u16 ctrl;
@@ -29,7 +29,7 @@ int mv88e6390_hidden_write(struct mv88e6xxx_chip *chip, int port,
ctrl = MV88E6XXX_PORT_RESERVED_1A_BUSY |
MV88E6XXX_PORT_RESERVED_1A_WRITE |
- MV88E6XXX_PORT_RESERVED_1A_BLOCK |
+ (block << MV88E6XXX_PORT_RESERVED_1A_BLOCK_SHIFT) |
port << MV88E6XXX_PORT_RESERVED_1A_PORT_SHIFT | reg;
return mv88e6xxx_port_write(chip, MV88E6XXX_PORT_RESERVED_1A_CTRL_PORT,
@@ -44,7 +44,7 @@ int mv88e6390_hidden_wait(struct mv88e6xxx_chip *chip)
MV88E6XXX_PORT_RESERVED_1A, bit, 0);
}
-int mv88e6390_hidden_read(struct mv88e6xxx_chip *chip, int port,
+int mv88e6390_hidden_read(struct mv88e6xxx_chip *chip, int block, int port,
int reg, u16 *val)
{
u16 ctrl;
@@ -52,7 +52,7 @@ int mv88e6390_hidden_read(struct mv88e6xxx_chip *chip, int port,
ctrl = MV88E6XXX_PORT_RESERVED_1A_BUSY |
MV88E6XXX_PORT_RESERVED_1A_READ |
- MV88E6XXX_PORT_RESERVED_1A_BLOCK |
+ (block << MV88E6XXX_PORT_RESERVED_1A_BLOCK_SHIFT) |
port << MV88E6XXX_PORT_RESERVED_1A_PORT_SHIFT | reg;
err = mv88e6xxx_port_write(chip, MV88E6XXX_PORT_RESERVED_1A_CTRL_PORT,
diff --git a/drivers/net/dsa/mv88e6xxx/hidden.h b/drivers/net/dsa/mv88e6xxx/hidden.h
index 632abbe4e139..71cc2f78fa30 100644
--- a/drivers/net/dsa/mv88e6xxx/hidden.h
+++ b/drivers/net/dsa/mv88e6xxx/hidden.h
@@ -18,14 +18,16 @@
#define MV88E6XXX_PORT_RESERVED_1A_WRITE BIT(14)
#define MV88E6XXX_PORT_RESERVED_1A_READ 0
#define MV88E6XXX_PORT_RESERVED_1A_PORT_SHIFT 5
-#define MV88E6XXX_PORT_RESERVED_1A_BLOCK (0xf << 10)
+#define MV88E6XXX_PORT_RESERVED_1A_BLOCK_SHIFT 10
#define MV88E6XXX_PORT_RESERVED_1A_CTRL_PORT 4
#define MV88E6XXX_PORT_RESERVED_1A_DATA_PORT 5
+#define MV88E6341_PORT_RESERVED_1A_FORCE_CMODE BIT(15)
+#define MV88E6341_PORT_RESERVED_1A_SGMII_AN BIT(13)
-int mv88e6390_hidden_write(struct mv88e6xxx_chip *chip, int port,
+int mv88e6390_hidden_write(struct mv88e6xxx_chip *chip, int block, int port,
int reg, u16 val);
int mv88e6390_hidden_wait(struct mv88e6xxx_chip *chip);
-int mv88e6390_hidden_read(struct mv88e6xxx_chip *chip, int port,
+int mv88e6390_hidden_read(struct mv88e6xxx_chip *chip, int block, int port,
int reg, u16 *val);
#endif /* _MV88E6XXX_HIDDEN_H */
--
2.21.0
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