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net: dsa: mv88e6xxx: prefix Global 2 EEPROM macros 

Prefix and document the Global 2 EEPROM registers macros.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vivien Didelot 2017-06-19 10:55:42 -04:00 committed by David S. Miller
parent 67d1ea8e84
commit 7fc8c9d520
2 changed files with 38 additions and 25 deletions
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32
drivers/net/dsa/mv88e6xxx/global2.c
View File

@ -282,16 +282,17 @@ static int mv88e6xxx_g2_clear_pot(struct mv88e6xxx_chip *chip)
static int mv88e6xxx_g2_eeprom_wait(struct mv88e6xxx_chip *chip)
{
return mv88e6xxx_g2_wait(chip, GLOBAL2_EEPROM_CMD,
GLOBAL2_EEPROM_CMD_BUSY |
GLOBAL2_EEPROM_CMD_RUNNING);
return mv88e6xxx_g2_wait(chip, MV88E6XXX_G2_EEPROM_CMD,
MV88E6XXX_G2_EEPROM_CMD_BUSY |
MV88E6XXX_G2_EEPROM_CMD_RUNNING);
}
static int mv88e6xxx_g2_eeprom_cmd(struct mv88e6xxx_chip *chip, u16 cmd)
{
int err;
err = mv88e6xxx_g2_write(chip, GLOBAL2_EEPROM_CMD, cmd);
err = mv88e6xxx_g2_write(chip, MV88E6XXX_G2_EEPROM_CMD,
MV88E6XXX_G2_EEPROM_CMD_BUSY | cmd);
if (err)
return err;
@ -301,14 +302,14 @@ static int mv88e6xxx_g2_eeprom_cmd(struct mv88e6xxx_chip *chip, u16 cmd)
static int mv88e6xxx_g2_eeprom_read8(struct mv88e6xxx_chip *chip,
u16 addr, u8 *data)
{
u16 cmd = GLOBAL2_EEPROM_CMD_OP_READ;
u16 cmd = MV88E6XXX_G2_EEPROM_CMD_OP_READ;
int err;
err = mv88e6xxx_g2_eeprom_wait(chip);
if (err)
return err;
err = mv88e6xxx_g2_write(chip, GLOBAL2_EEPROM_ADDR, addr);
err = mv88e6xxx_g2_write(chip, MV88E6390_G2_EEPROM_ADDR, addr);
if (err)
return err;
@ -316,7 +317,7 @@ static int mv88e6xxx_g2_eeprom_read8(struct mv88e6xxx_chip *chip,
if (err)
return err;
err = mv88e6xxx_g2_read(chip, GLOBAL2_EEPROM_CMD, &cmd);
err = mv88e6xxx_g2_read(chip, MV88E6XXX_G2_EEPROM_CMD, &cmd);
if (err)
return err;
@ -328,14 +329,15 @@ static int mv88e6xxx_g2_eeprom_read8(struct mv88e6xxx_chip *chip,
static int mv88e6xxx_g2_eeprom_write8(struct mv88e6xxx_chip *chip,
u16 addr, u8 data)
{
u16 cmd = GLOBAL2_EEPROM_CMD_OP_WRITE | GLOBAL2_EEPROM_CMD_WRITE_EN;
u16 cmd = MV88E6XXX_G2_EEPROM_CMD_OP_WRITE |
MV88E6XXX_G2_EEPROM_CMD_WRITE_EN;
int err;
err = mv88e6xxx_g2_eeprom_wait(chip);
if (err)
return err;
err = mv88e6xxx_g2_write(chip, GLOBAL2_EEPROM_ADDR, addr);
err = mv88e6xxx_g2_write(chip, MV88E6390_G2_EEPROM_ADDR, addr);
if (err)
return err;
@ -345,7 +347,7 @@ static int mv88e6xxx_g2_eeprom_write8(struct mv88e6xxx_chip *chip,
static int mv88e6xxx_g2_eeprom_read16(struct mv88e6xxx_chip *chip,
u8 addr, u16 *data)
{
u16 cmd = GLOBAL2_EEPROM_CMD_OP_READ | addr;
u16 cmd = MV88E6XXX_G2_EEPROM_CMD_OP_READ | addr;
int err;
err = mv88e6xxx_g2_eeprom_wait(chip);
@ -356,20 +358,20 @@ static int mv88e6xxx_g2_eeprom_read16(struct mv88e6xxx_chip *chip,
if (err)
return err;
return mv88e6xxx_g2_read(chip, GLOBAL2_EEPROM_DATA, data);
return mv88e6xxx_g2_read(chip, MV88E6352_G2_EEPROM_DATA, data);
}
static int mv88e6xxx_g2_eeprom_write16(struct mv88e6xxx_chip *chip,
u8 addr, u16 data)
{
u16 cmd = GLOBAL2_EEPROM_CMD_OP_WRITE | addr;
u16 cmd = MV88E6XXX_G2_EEPROM_CMD_OP_WRITE | addr;
int err;
err = mv88e6xxx_g2_eeprom_wait(chip);
if (err)
return err;
err = mv88e6xxx_g2_write(chip, GLOBAL2_EEPROM_DATA, data);
err = mv88e6xxx_g2_write(chip, MV88E6352_G2_EEPROM_DATA, data);
if (err)
return err;
@ -481,11 +483,11 @@ int mv88e6xxx_g2_set_eeprom16(struct mv88e6xxx_chip *chip,
int err;
/* Ensure the RO WriteEn bit is set */
err = mv88e6xxx_g2_read(chip, GLOBAL2_EEPROM_CMD, &val);
err = mv88e6xxx_g2_read(chip, MV88E6XXX_G2_EEPROM_CMD, &val);
if (err)
return err;
if (!(val & GLOBAL2_EEPROM_CMD_WRITE_EN))
if (!(val & MV88E6XXX_G2_EEPROM_CMD_WRITE_EN))
return -EROFS;
eeprom->len = 0;

31
drivers/net/dsa/mv88e6xxx/global2.h
View File

@ -99,16 +99,27 @@
#define GLOBAL2_PRIO_OVERRIDE_SNOOP_SHIFT 4
#define GLOBAL2_PRIO_OVERRIDE_FORCE_ARP BIT(3)
#define GLOBAL2_PRIO_OVERRIDE_ARP_SHIFT 0
#define GLOBAL2_EEPROM_CMD 0x14
#define GLOBAL2_EEPROM_CMD_BUSY BIT(15)
#define GLOBAL2_EEPROM_CMD_OP_WRITE ((0x3 << 12) | GLOBAL2_EEPROM_CMD_BUSY)
#define GLOBAL2_EEPROM_CMD_OP_READ ((0x4 << 12) | GLOBAL2_EEPROM_CMD_BUSY)
#define GLOBAL2_EEPROM_CMD_OP_LOAD ((0x6 << 12) | GLOBAL2_EEPROM_CMD_BUSY)
#define GLOBAL2_EEPROM_CMD_RUNNING BIT(11)
#define GLOBAL2_EEPROM_CMD_WRITE_EN BIT(10)
#define GLOBAL2_EEPROM_CMD_ADDR_MASK 0xff
#define GLOBAL2_EEPROM_DATA 0x15
#define GLOBAL2_EEPROM_ADDR 0x15 /* 6390, 6341 */
/* Offset 0x14: EEPROM Command */
#define MV88E6XXX_G2_EEPROM_CMD 0x14
#define MV88E6XXX_G2_EEPROM_CMD_BUSY 0x8000
#define MV88E6XXX_G2_EEPROM_CMD_OP_MASK 0x7000
#define MV88E6XXX_G2_EEPROM_CMD_OP_WRITE 0x3000
#define MV88E6XXX_G2_EEPROM_CMD_OP_READ 0x4000
#define MV88E6XXX_G2_EEPROM_CMD_OP_LOAD 0x6000
#define MV88E6XXX_G2_EEPROM_CMD_RUNNING 0x0800
#define MV88E6XXX_G2_EEPROM_CMD_WRITE_EN 0x0400
#define MV88E6352_G2_EEPROM_CMD_ADDR_MASK 0x00ff
#define MV88E6390_G2_EEPROM_CMD_DATA_MASK 0x00ff
/* Offset 0x15: EEPROM Data */
#define MV88E6352_G2_EEPROM_DATA 0x15
#define MV88E6352_G2_EEPROM_DATA_MASK 0xffff
/* Offset 0x15: EEPROM Addr */
#define MV88E6390_G2_EEPROM_ADDR 0x15
#define MV88E6390_G2_EEPROM_ADDR_MASK 0xffff
#define GLOBAL2_PTP_AVB_OP 0x16
#define GLOBAL2_PTP_AVB_DATA 0x17