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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2015-2016 Marvell International Ltd.
*
* Copyright (C) 2016 Stefan Roese <sr@denx.de>
*/
#include <common.h>
#include <dm.h>
#include <fdtdec.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include <dm/device_compat.h>
#include <linux/err.h>
#include <linux/errno.h>
#include <linux/libfdt.h>
#include "comphy_core.h"
#define COMPHY_MAX_CHIP 4
DECLARE_GLOBAL_DATA_PTR;
static const char *get_speed_string(u32 speed)
{
static const char * const speed_strings[] = {
"1.25 Gbps", "2.5 Gbps", "3.125 Gbps",
"5 Gbps", "5.125 Gpbs", "6 Gbps",
"10.3125 Gbps"
};
if (speed < 0 || speed > COMPHY_SPEED_MAX)
return "invalid";
return speed_strings[speed];
}
static const char *get_type_string(u32 type)
{
static const char * const type_strings[] = {
"UNCONNECTED", "PEX0", "PEX1", "PEX2", "PEX3",
"SATA0", "SATA1", "SGMII0", "SGMII1", "SGMII2",
"USB3", "USB3_HOST0", "USB3_HOST1",
"USB3_DEVICE", "RXAUI0", "RXAUI1", "SFI0", "SFI1", "AP",
"IGNORE"
};
if (type < 0 || type > COMPHY_TYPE_MAX)
return "invalid";
return type_strings[type];
}
void comphy_print(struct chip_serdes_phy_config *chip_cfg,
struct comphy_map *comphy_map_data)
{
u32 lane;
for (lane = 0; lane < chip_cfg->comphy_lanes_count;
lane++, comphy_map_data++) {
if (comphy_map_data->speed == COMPHY_SPEED_INVALID) {
printf("Comphy-%d: %-13s\n", lane,
get_type_string(comphy_map_data->type));
} else {
printf("Comphy-%d: %-13s %-10s\n", lane,
get_type_string(comphy_map_data->type),
get_speed_string(comphy_map_data->speed));
}
}
}
int comphy_rx_training(struct udevice *dev, u32 lane)
{
struct chip_serdes_phy_config *chip_cfg = dev_get_priv(dev);
if (chip_cfg->rx_training)
return chip_cfg->rx_training(chip_cfg, lane);
return 0;
}
static int comphy_probe(struct udevice *dev)
{
int node = dev_of_offset(dev);
struct chip_serdes_phy_config *chip_cfg = dev_get_priv(dev);
int last_idx = 0;
static int current_idx;
int res;
/* Save base addresses for later use */
chip_cfg->comphy_base_addr = (void *)devfdt_get_addr_index(dev, 0);
if (IS_ERR(chip_cfg->comphy_base_addr))
return PTR_ERR(chip_cfg->comphy_base_addr);
chip_cfg->hpipe3_base_addr = (void *)devfdt_get_addr_index(dev, 1);
if (IS_ERR(chip_cfg->hpipe3_base_addr))
return PTR_ERR(chip_cfg->hpipe3_base_addr);
if (device_is_compatible(dev, "marvell,comphy-armada-3700")) {
chip_cfg->comphy_init_map = comphy_a3700_init_serdes_map;
chip_cfg->ptr_comphy_chip_init = comphy_a3700_init;
chip_cfg->rx_training = NULL;
}
if (device_is_compatible(dev, "marvell,comphy-cp110")) {
chip_cfg->comphy_init_map = comphy_cp110_init_serdes_map;
chip_cfg->ptr_comphy_chip_init = comphy_cp110_init;
chip_cfg->rx_training = comphy_cp110_sfi_rx_training;
}
/*
* Bail out if no chip_init function is defined, e.g. no
* compatible node is found
*/
if (!chip_cfg->ptr_comphy_chip_init) {
dev_err(dev, "comphy: No compatible DT node found\n");
return -ENODEV;
}
res = chip_cfg->comphy_init_map(node, chip_cfg);
if (res < 0)
return res;
/* Save CP index for MultiCP devices (A8K) */
chip_cfg->cp_index = current_idx++;
/* PHY power UP sequence */
chip_cfg->ptr_comphy_chip_init(chip_cfg, chip_cfg->comphy_map_data);
/* PHY print SerDes status */
printf("Comphy chip #%d:\n", chip_cfg->cp_index);
comphy_print(chip_cfg, chip_cfg->comphy_map_data);
/*
* Only run the dedicated PHY init code once, in the last PHY init call
*/
if (of_machine_is_compatible("marvell,armada8040"))
last_idx = 1;
if (chip_cfg->cp_index == last_idx) {
/* Initialize dedicated PHYs (not muxed SerDes lanes) */
comphy_dedicated_phys_init();
}
return 0;
}
static const struct udevice_id comphy_ids[] = {
{ .compatible = "marvell,mvebu-comphy" },
{ }
};
U_BOOT_DRIVER(mvebu_comphy) = {
.name = "mvebu_comphy",
.id = UCLASS_MISC,
.of_match = comphy_ids,
.probe = comphy_probe,
.priv_auto = sizeof(struct chip_serdes_phy_config),
};
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