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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/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", "1.5 Gbps", "2.5 Gbps",
"3.0 Gbps", "3.125 Gbps", "5 Gbps", "6 Gbps",
"6.25 Gbps", "10.31 Gbps"
};
if (speed < 0 || speed > PHY_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", "SATA2", "SATA3", "SGMII0",
"SGMII1", "SGMII2", "SGMII3", "QSGMII",
"USB3_HOST0", "USB3_HOST1", "USB3_DEVICE",
"XAUI0", "XAUI1", "XAUI2", "XAUI3",
"RXAUI0", "RXAUI1", "SFI", "IGNORE"
};
if (type < 0 || type > PHY_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 == PHY_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));
}
}
}
__weak int comphy_update_map(struct comphy_map *serdes_map, int count)
{
return 0;
}
static int comphy_probe(struct udevice *dev)
{
const void *blob = gd->fdt_blob;
int node = dev_of_offset(dev);
struct chip_serdes_phy_config *chip_cfg = dev_get_priv(dev);
struct comphy_map comphy_map_data[MAX_LANE_OPTIONS];
int subnode;
int lane;
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);
chip_cfg->comphy_lanes_count = fdtdec_get_int(blob, node,
"max-lanes", 0);
if (chip_cfg->comphy_lanes_count <= 0) {
dev_err(dev, "comphy max lanes is wrong\n");
return -EINVAL;
}
chip_cfg->comphy_mux_bitcount = fdtdec_get_int(blob, node,
"mux-bitcount", 0);
if (chip_cfg->comphy_mux_bitcount <= 0) {
dev_err(dev, "comphy mux bit count is wrong\n");
return -EINVAL;
}
chip_cfg->comphy_mux_lane_order =
fdtdec_locate_array(blob, node, "mux-lane-order",
chip_cfg->comphy_lanes_count);
if (device_is_compatible(dev, "marvell,comphy-armada-3700"))
chip_cfg->ptr_comphy_chip_init = comphy_a3700_init;
if (device_is_compatible(dev, "marvell,comphy-cp110"))
chip_cfg->ptr_comphy_chip_init = comphy_cp110_init;
/*
* 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;
}
lane = 0;
fdt_for_each_subnode(subnode, blob, node) {
/* Skip disabled ports */
if (!fdtdec_get_is_enabled(blob, subnode))
continue;
comphy_map_data[lane].speed = fdtdec_get_int(
blob, subnode, "phy-speed", PHY_TYPE_INVALID);
comphy_map_data[lane].type = fdtdec_get_int(
blob, subnode, "phy-type", PHY_SPEED_INVALID);
comphy_map_data[lane].invert = fdtdec_get_int(
blob, subnode, "phy-invert", PHY_POLARITY_NO_INVERT);
comphy_map_data[lane].clk_src = fdtdec_get_bool(blob, subnode,
"clk-src");
comphy_map_data[lane].end_point = fdtdec_get_bool(blob, subnode,
"end_point");
if (comphy_map_data[lane].type == PHY_TYPE_INVALID) {
printf("no phy type for lane %d, setting lane as unconnected\n",
lane + 1);
}
lane++;
}
res = comphy_update_map(comphy_map_data, chip_cfg->comphy_lanes_count);
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, comphy_map_data);
/* PHY print SerDes status */
if (of_machine_is_compatible("marvell,armada8040"))
printf("Comphy chip #%d:\n", chip_cfg->cp_index);
comphy_print(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_alloc_size = sizeof(struct chip_serdes_phy_config),
};
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