diff options
-rw-r--r-- | drivers/net/phy/mv88e6xxx/Makefile | 1 | ||||
-rw-r--r-- | drivers/net/phy/mv88e6xxx/chip.c | 34 | ||||
-rw-r--r-- | drivers/net/phy/mv88e6xxx/chip.h | 1 | ||||
-rw-r--r-- | drivers/net/phy/mv88e6xxx/global1.c | 51 | ||||
-rw-r--r-- | drivers/net/phy/mv88e6xxx/global1.h | 37 |
5 files changed, 124 insertions, 0 deletions
diff --git a/drivers/net/phy/mv88e6xxx/Makefile b/drivers/net/phy/mv88e6xxx/Makefile index e09ea0aa47..e1d4b1b9d7 100644 --- a/drivers/net/phy/mv88e6xxx/Makefile +++ b/drivers/net/phy/mv88e6xxx/Makefile @@ -1,5 +1,6 @@ obj-y += mv88e6xxx.o mv88e6xxx-objs := chip.o +mv88e6xxx-objs += global1.o mv88e6xxx-objs += global2.o mv88e6xxx-objs += port.o diff --git a/drivers/net/phy/mv88e6xxx/chip.c b/drivers/net/phy/mv88e6xxx/chip.c index 7ae09aa9c3..b1bffe5cbc 100644 --- a/drivers/net/phy/mv88e6xxx/chip.c +++ b/drivers/net/phy/mv88e6xxx/chip.c @@ -11,6 +11,7 @@ #include <of_gpio.h> #include "chip.h" +#include "global1.h" #include "global2.h" #include "port.h" @@ -342,6 +343,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6085", .num_ports = 10, .port_base_addr = 0x10, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6085_ops, }, @@ -352,6 +354,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6095/88E6095F", .num_ports = 11, .port_base_addr = 0x10, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6095_ops, }, @@ -362,6 +365,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6097/88E6097F", .num_ports = 11, .port_base_addr = 0x10, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6097_ops, }, @@ -372,6 +376,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6123", .num_ports = 3, .port_base_addr = 0x10, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6123_ops, }, @@ -382,6 +387,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6131", .num_ports = 8, .port_base_addr = 0x10, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6131_ops, }, @@ -392,6 +398,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6341", .num_ports = 6, .port_base_addr = 0x10, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6141_ops, }, @@ -402,6 +409,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6161", .num_ports = 6, .port_base_addr = 0x10, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6161_ops, }, @@ -412,6 +420,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6165", .num_ports = 6, .port_base_addr = 0x10, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6165_ops, }, @@ -422,6 +431,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6171", .num_ports = 7, .port_base_addr = 0x10, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6171_ops, }, @@ -432,6 +442,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6172", .num_ports = 7, .port_base_addr = 0x10, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6172_ops, }, @@ -442,6 +453,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6175", .num_ports = 7, .port_base_addr = 0x10, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6175_ops, }, @@ -452,6 +464,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6176", .num_ports = 7, .port_base_addr = 0x10, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6176_ops, }, @@ -462,6 +475,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6185", .num_ports = 10, .port_base_addr = 0x10, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6185_ops, }, @@ -472,6 +486,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6190", .num_ports = 11, /* 10 + Z80 */ .port_base_addr = 0x0, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6190_ops, }, @@ -482,6 +497,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6190X", .num_ports = 11, /* 10 + Z80 */ .port_base_addr = 0x0, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6190x_ops, }, @@ -492,6 +508,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6191", .num_ports = 11, /* 10 + Z80 */ .port_base_addr = 0x0, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6191_ops, }, @@ -502,6 +519,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6240", .num_ports = 7, .port_base_addr = 0x10, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6240_ops, }, @@ -512,6 +530,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6290", .num_ports = 11, /* 10 + Z80 */ .port_base_addr = 0x0, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6290_ops, }, @@ -522,6 +541,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6320", .num_ports = 7, .port_base_addr = 0x10, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6320_ops, }, @@ -532,6 +552,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6321", .num_ports = 7, .port_base_addr = 0x10, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6321_ops, }, @@ -542,6 +563,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6341", .num_ports = 6, .port_base_addr = 0x10, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6341_ops, }, @@ -552,6 +574,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6350", .num_ports = 7, .port_base_addr = 0x10, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6350_ops, }, @@ -562,6 +585,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6351", .num_ports = 7, .port_base_addr = 0x10, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6351_ops, }, @@ -572,6 +596,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6352", .num_ports = 7, .port_base_addr = 0x10, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6352_ops, }, @@ -582,6 +607,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6390", .num_ports = 11, /* 10 + Z80 */ .port_base_addr = 0x0, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6390_ops, }, @@ -592,6 +618,7 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = { .name = "Marvell 88E6390X", .num_ports = 11, /* 10 + Z80 */ .port_base_addr = 0x0, + .global1_addr = 0x1b, .global2_addr = 0x1c, .ops = &mv88e6390x_ops, }, @@ -741,6 +768,8 @@ static void mv88e6xxx_hardware_reset(struct mv88e6xxx_chip *chip) mv88e6xxx_hardware_reset_delay(); gpio_set_active(chip->reset, 0); mv88e6xxx_hardware_reset_delay(); + + mv88e6xxx_g1_wait_eeprom_done(chip); } } @@ -836,6 +865,11 @@ static int mv88e6xxx_probe(struct device_d *dev) */ mv88e6xxx_hardware_reset_delay(); } + /* + * Switch will not return valid data over MDIO until EEPROM is + * loaded + */ + mv88e6xxx_g1_wait_eeprom_done(chip); err = mv88e6xxx_detect(chip); if (err) diff --git a/drivers/net/phy/mv88e6xxx/chip.h b/drivers/net/phy/mv88e6xxx/chip.h index 7548358de0..57f74a39a0 100644 --- a/drivers/net/phy/mv88e6xxx/chip.h +++ b/drivers/net/phy/mv88e6xxx/chip.h @@ -34,6 +34,7 @@ struct mv88e6xxx_info { const char *name; unsigned int num_ports; unsigned int port_base_addr; + unsigned int global1_addr; unsigned int global2_addr; const struct mv88e6xxx_ops *ops; diff --git a/drivers/net/phy/mv88e6xxx/global1.c b/drivers/net/phy/mv88e6xxx/global1.c new file mode 100644 index 0000000000..bace5396e9 --- /dev/null +++ b/drivers/net/phy/mv88e6xxx/global1.c @@ -0,0 +1,51 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Marvell 88E6xxx Switch Global (1) Registers support + * + * Copyright (c) 2008 Marvell Semiconductor + * + * Copyright (c) 2016-2017 Savoir-faire Linux Inc. + * Vivien Didelot <vivien.didelot@savoirfairelinux.com> + */ + +#include <clock.h> +#include <linux/bitfield.h> + +#include "chip.h" +#include "global1.h" + +static int mv88e6xxx_g1_read(struct mv88e6xxx_chip *chip, int reg, u16 *val) +{ + int addr = chip->info->global1_addr; + + return mv88e6xxx_read(chip, addr, reg, val); +} + +void mv88e6xxx_g1_wait_eeprom_done(struct mv88e6xxx_chip *chip) +{ + const uint64_t start = get_time_ns(); + const uint64_t timeout = SECOND; + u16 val; + int err; + + /* Wait up to 1 second for the switch to finish reading the + * EEPROM. + */ + while (!is_timeout(start, timeout)) { + err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_STS, &val); + if (err) { + dev_err(chip->dev, "Error reading status\n"); + return; + } + + if (val != 0xFFFF && /* switch will return 0xffff until + * EEPROM is loaded + */ + val & BIT(MV88E6XXX_G1_STS_IRQ_EEPROM_DONE)) + return; + + mdelay(2); + } + + dev_err(chip->dev, "Timeout waiting for EEPROM done\n"); +} diff --git a/drivers/net/phy/mv88e6xxx/global1.h b/drivers/net/phy/mv88e6xxx/global1.h new file mode 100644 index 0000000000..a505bae2bf --- /dev/null +++ b/drivers/net/phy/mv88e6xxx/global1.h @@ -0,0 +1,37 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Marvell 88E6xxx Switch Global (1) Registers support + * + * Copyright (c) 2008 Marvell Semiconductor + * + * Copyright (c) 2016-2017 Savoir-faire Linux Inc. + * Vivien Didelot <vivien.didelot@savoirfairelinux.com> + */ + +#ifndef _MV88E6XXX_GLOBAL1_H +#define _MV88E6XXX_GLOBAL1_H + +#include "chip.h" + +/* 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_PROB 5 +#define MV88E6XXX_G1_STS_IRQ_VTU_DONE 4 +#define MV88E6XXX_G1_STS_IRQ_ATU_PROB 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 + +void mv88e6xxx_g1_wait_eeprom_done(struct mv88e6xxx_chip *chip); + +#endif /* _MV88E6XXX_GLOBAL1_H */ |