[PATCH net-next] net: dsa: mv88e6352: Use mnemonics for EEPROM registers and bits

[Andrew Lunn]

Add register definitions #defines for accessing the EEPROM.

Signed-off-by: Andrew Lunn <and...@lunn.ch>
---
 drivers/net/dsa/mv88e6352.c | 18 ++++++++++--------
 drivers/net/dsa/mv88e6xxx.h |  8 ++++++--
 2 files changed, 16 insertions(+), 10 deletions(-)

diff --git a/drivers/net/dsa/mv88e6352.c b/drivers/net/dsa/mv88e6352.c
index af210efecc55..7e935852e192 100644
--- a/drivers/net/dsa/mv88e6352.c
+++ b/drivers/net/dsa/mv88e6352.c
@@ -123,8 +123,9 @@ static int mv88e6352_read_eeprom_word(struct dsa_switch 
*ds, int addr)
 
        mutex_lock(&ps->eeprom_mutex);
 
-       ret = mv88e6xxx_reg_write(ds, REG_GLOBAL2, 0x14,
-                                 0xc000 | (addr & 0xff));
+       ret = mv88e6xxx_reg_write(ds, REG_GLOBAL2, GLOBAL2_EEPROM_OP,
+                                 GLOBAL2_EEPROM_OP_READ |
+                                 (addr & GLOBAL2_EEPROM_OP_ADDR_MASK));
        if (ret < 0)
                goto error;
 
@@ -132,7 +133,7 @@ static int mv88e6352_read_eeprom_word(struct dsa_switch 
*ds, int addr)
        if (ret < 0)
                goto error;
 
-       ret = mv88e6xxx_reg_read(ds, REG_GLOBAL2, 0x15);
+       ret = mv88e6xxx_reg_read(ds, REG_GLOBAL2, GLOBAL2_EEPROM_DATA);
 error:
        mutex_unlock(&ps->eeprom_mutex);
        return ret;
@@ -205,11 +206,11 @@ static int mv88e6352_eeprom_is_readonly(struct dsa_switch 
*ds)
 {
        int ret;
 
-       ret = mv88e6xxx_reg_read(ds, REG_GLOBAL2, 0x14);
+       ret = mv88e6xxx_reg_read(ds, REG_GLOBAL2, GLOBAL2_EEPROM_OP);
        if (ret < 0)
                return ret;
 
-       if (!(ret & 0x0400))
+       if (!(ret & GLOBAL2_EEPROM_OP_WRITE_EN))
                return -EROFS;
 
        return 0;
@@ -223,12 +224,13 @@ static int mv88e6352_write_eeprom_word(struct dsa_switch 
*ds, int addr,
 
        mutex_lock(&ps->eeprom_mutex);
 
-       ret = mv88e6xxx_reg_write(ds, REG_GLOBAL2, 0x15, data);
+       ret = mv88e6xxx_reg_write(ds, REG_GLOBAL2, GLOBAL2_EEPROM_DATA, data);
        if (ret < 0)
                goto error;
 
-       ret = mv88e6xxx_reg_write(ds, REG_GLOBAL2, 0x14,
-                                 0xb000 | (addr & 0xff));
+       ret = mv88e6xxx_reg_write(ds, REG_GLOBAL2, GLOBAL2_EEPROM_OP,
+                                 GLOBAL2_EEPROM_OP_WRITE |
+                                 (addr & GLOBAL2_EEPROM_OP_ADDR_MASK));
        if (ret < 0)
                goto error;
 
diff --git a/drivers/net/dsa/mv88e6xxx.h b/drivers/net/dsa/mv88e6xxx.h
index 78e37226a37d..8b017d65b691 100644
--- a/drivers/net/dsa/mv88e6xxx.h
+++ b/drivers/net/dsa/mv88e6xxx.h
@@ -285,8 +285,12 @@
 #define GLOBAL2_PRIO_OVERRIDE_FORCE_ARP                BIT(3)
 #define GLOBAL2_PRIO_OVERRIDE_ARP_SHIFT                0
 #define GLOBAL2_EEPROM_OP      0x14
-#define GLOBAL2_EEPROM_OP_BUSY BIT(15)
-#define GLOBAL2_EEPROM_OP_LOAD BIT(11)
+#define GLOBAL2_EEPROM_OP_BUSY         BIT(15)
+#define GLOBAL2_EEPROM_OP_WRITE                ((3 << 12) | 
GLOBAL2_EEPROM_OP_BUSY)
+#define GLOBAL2_EEPROM_OP_READ         ((4 << 12) | GLOBAL2_EEPROM_OP_BUSY)
+#define GLOBAL2_EEPROM_OP_LOAD         BIT(11)
+#define GLOBAL2_EEPROM_OP_WRITE_EN     BIT(10)
+#define GLOBAL2_EEPROM_OP_ADDR_MASK    0xff
 #define GLOBAL2_EEPROM_DATA    0x15
 #define GLOBAL2_PTP_AVB_OP     0x16
 #define GLOBAL2_PTP_AVB_DATA   0x17
-- 
2.5.0

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