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net: dsa: mv88e6xxx: prefix Global Status macros

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Prefix and document the Global Status Register macros and give clear
16-bit register representation.

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 2017-06-15 12:13:59 -04:00 committed by David S. Miller
parent 83ad357dee
commit 8246692182
4 changed files with 33 additions and 31 deletions
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4
drivers/net/dsa/mv88e6xxx/chip.c
View File

@ -261,7 +261,7 @@ static irqreturn_t mv88e6xxx_g1_irq_thread_fn(int irq, void *dev_id)
int err;
mutex_lock(&chip->reg_lock);
err = mv88e6xxx_g1_read(chip, GLOBAL_STATUS, &reg);
err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_STS, &reg);
mutex_unlock(&chip->reg_lock);
if (err)
@ -381,7 +381,7 @@ static int mv88e6xxx_g1_irq_setup(struct mv88e6xxx_chip *chip)
goto out_disable;
/* Reading the interrupt status clears (most of) them */
err = mv88e6xxx_g1_read(chip, GLOBAL_STATUS, &reg);
err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_STS, &reg);
if (err)
goto out_disable;

20
drivers/net/dsa/mv88e6xxx/global1.c
View File

@ -42,13 +42,13 @@ static int mv88e6185_g1_wait_ppu_disabled(struct mv88e6xxx_chip *chip)
int i, err;
for (i = 0; i < 16; i++) {
err = mv88e6xxx_g1_read(chip, GLOBAL_STATUS, &state);
err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_STS, &state);
if (err)
return err;
/* Check the value of the PPUState bits 15:14 */
state &= GLOBAL_STATUS_PPU_STATE_MASK;
if (state != GLOBAL_STATUS_PPU_STATE_POLLING)
state &= MV88E6185_G1_STS_PPU_STATE_MASK;
if (state != MV88E6185_G1_STS_PPU_STATE_POLLING)
return 0;
usleep_range(1000, 2000);
@ -63,13 +63,13 @@ static int mv88e6185_g1_wait_ppu_polling(struct mv88e6xxx_chip *chip)
int i, err;
for (i = 0; i < 16; ++i) {
err = mv88e6xxx_g1_read(chip, GLOBAL_STATUS, &state);
err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_STS, &state);
if (err)
return err;
/* Check the value of the PPUState bits 15:14 */
state &= GLOBAL_STATUS_PPU_STATE_MASK;
if (state == GLOBAL_STATUS_PPU_STATE_POLLING)
state &= MV88E6185_G1_STS_PPU_STATE_MASK;
if (state == MV88E6185_G1_STS_PPU_STATE_POLLING)
return 0;
usleep_range(1000, 2000);
@ -84,12 +84,12 @@ static int mv88e6352_g1_wait_ppu_polling(struct mv88e6xxx_chip *chip)
int i, err;
for (i = 0; i < 16; ++i) {
err = mv88e6xxx_g1_read(chip, GLOBAL_STATUS, &state);
err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_STS, &state);
if (err)
return err;
/* Check the value of the PPUState (or InitState) bit 15 */
if (state & GLOBAL_STATUS_PPU_STATE)
if (state & MV88E6352_G1_STS_PPU_STATE)
return 0;
usleep_range(1000, 2000);
@ -109,11 +109,11 @@ static int mv88e6xxx_g1_wait_init_ready(struct mv88e6xxx_chip *chip)
* have finished their initialization and are ready to accept frames.
*/
while (time_before(jiffies, timeout)) {
err = mv88e6xxx_g1_read(chip, GLOBAL_STATUS, &val);
err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_STS, &val);
if (err)
return err;
if (val & GLOBAL_STATUS_INIT_READY)
if (val & MV88E6XXX_G1_STS_INIT_READY)
break;
usleep_range(1000, 2000);

36
drivers/net/dsa/mv88e6xxx/global1.h
View File

@ -17,23 +17,25 @@
#include "chip.h"
#define GLOBAL_STATUS 0x00
#define GLOBAL_STATUS_PPU_STATE BIT(15) /* 6351 and 6171 */
#define GLOBAL_STATUS_PPU_STATE_MASK (0x3 << 14) /* 6165 6185 */
#define GLOBAL_STATUS_PPU_STATE_DISABLED_RST (0x0 << 14)
#define GLOBAL_STATUS_PPU_STATE_INITIALIZING (0x1 << 14)
#define GLOBAL_STATUS_PPU_STATE_DISABLED (0x2 << 14)
#define GLOBAL_STATUS_PPU_STATE_POLLING (0x3 << 14)
#define GLOBAL_STATUS_INIT_READY BIT(11)
#define GLOBAL_STATUS_IRQ_AVB 8
#define GLOBAL_STATUS_IRQ_DEVICE 7
#define GLOBAL_STATUS_IRQ_STATS 6
#define GLOBAL_STATUS_IRQ_VTU_PROBLEM 5
#define GLOBAL_STATUS_IRQ_VTU_DONE 4
#define GLOBAL_STATUS_IRQ_ATU_PROBLEM 3
#define GLOBAL_STATUS_IRQ_ATU_DONE 2
#define GLOBAL_STATUS_IRQ_TCAM_DONE 1
#define GLOBAL_STATUS_IRQ_EEPROM_DONE 0
/* Offset 0x00: Switch Global Status Register */
#define MV88E6XXX_G1_STS 0x00
#define MV88E6352_G1_STS_PPU_STATE 0x8000
#define MV88E6185_G1_STS_PPU_STATE_MASK 0xc000
#define MV88E6185_G1_STS_PPU_STATE_DISABLED_RST 0x0000
#define MV88E6185_G1_STS_PPU_STATE_INITIALIZING 0x4000
#define MV88E6185_G1_STS_PPU_STATE_DISABLED 0x8000
#define MV88E6185_G1_STS_PPU_STATE_POLLING 0xc000
#define MV88E6XXX_G1_STS_INIT_READY 0x0800
#define MV88E6XXX_G1_STS_IRQ_AVB 8
#define MV88E6XXX_G1_STS_IRQ_DEVICE 7
#define MV88E6XXX_G1_STS_IRQ_STATS 6
#define MV88E6XXX_G1_STS_IRQ_VTU_PROBLEM 5
#define MV88E6XXX_G1_STS_IRQ_VTU_DONE 4
#define MV88E6XXX_G1_STS_IRQ_ATU_PROBLEM 3
#define MV88E6XXX_G1_STS_IRQ_ATU_DONE 2
#define MV88E6XXX_G1_STS_IRQ_TCAM_DONE 1
#define MV88E6XXX_G1_STS_IRQ_EEPROM_DONE 0
#define GLOBAL_MAC_01 0x01
#define GLOBAL_MAC_23 0x02
#define GLOBAL_MAC_45 0x03

4
drivers/net/dsa/mv88e6xxx/global2.c
View File

@ -17,7 +17,7 @@
#include <linux/irqdomain.h>
#include "chip.h"
#include "global1.h" /* for GLOBAL_STATUS_IRQ_DEVICE */
#include "global1.h" /* for MV88E6XXX_G1_STS_IRQ_DEVICE */
#include "global2.h"
static int mv88e6xxx_g2_read(struct mv88e6xxx_chip *chip, int reg, u16 *val)
@ -977,7 +977,7 @@ int mv88e6xxx_g2_irq_setup(struct mv88e6xxx_chip *chip)
chip->g2_irq.masked = ~0;
chip->device_irq = irq_find_mapping(chip->g1_irq.domain,
GLOBAL_STATUS_IRQ_DEVICE);
MV88E6XXX_G1_STS_IRQ_DEVICE);
if (chip->device_irq < 0) {
err = chip->device_irq;
goto out;