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/*
* Copyright (C) 2015-2016 Marvell International Ltd.
*
* Copyright (C) 2016 Stefan Roese <sr@denx.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <fdtdec.h>
#include <linux/errno.h>
#include <asm/io.h>
#include "comphy.h"
#define COMPHY_MAX_CHIP 4
DECLARE_GLOBAL_DATA_PTR;
static char *get_speed_string(u32 speed)
{
char *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 char *get_type_string(u32 type)
{
char *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", "KR"};
if (type < 0 || type > PHY_TYPE_MAX)
return "invalid";
return type_strings[type];
}
void reg_set(void __iomem *addr, u32 data, u32 mask)
{
debug("Write to address = %#010lx, data = %#010x (mask = %#010x) - ",
(unsigned long)addr, data, mask);
debug("old value = %#010x ==> ", readl(addr));
reg_set_silent(addr, data, mask);
debug("new value %#010x\n", readl(addr));
}
void reg_set_silent(void __iomem *addr, u32 data, u32 mask)
{
u32 reg_data;
reg_data = readl(addr);
reg_data &= ~mask;
reg_data |= data;
writel(reg_data, addr);
}
void reg_set16(void __iomem *addr, u16 data, u16 mask)
{
debug("Write to address = %#010lx, data = %#06x (mask = %#06x) - ",
(unsigned long)addr, data, mask);
debug("old value = %#06x ==> ", readw(addr));
reg_set_silent16(addr, data, mask);
debug("new value %#06x\n", readw(addr));
}
void reg_set_silent16(void __iomem *addr, u16 data, u16 mask)
{
u16 reg_data;
reg_data = readw(addr);
reg_data &= ~mask;
reg_data |= data;
writew(reg_data, addr);
}
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->type == PHY_TYPE_UNCONNECTED)
continue;
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));
}
}
}
static int comphy_probe(struct udevice *dev)
{
const void *blob = gd->fdt_blob;
int node = dev->of_offset;
struct chip_serdes_phy_config *chip_cfg = dev_get_priv(dev);
struct comphy_map comphy_map_data[MAX_LANE_OPTIONS];
int subnode;
int lane;
/* Save base addresses for later use */
chip_cfg->comphy_base_addr = (void *)dev_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 *)dev_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->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->dev, "comphy mux bit count is wrong\n");
return -EINVAL;
}
if (of_device_is_compatible(dev, "marvell,comphy-armada-3700"))
chip_cfg->ptr_comphy_chip_init = comphy_a3700_init;
if (of_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->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");
if (comphy_map_data[lane].type == PHY_TYPE_INVALID) {
printf("no phy type for lane %d, setting lane as unconnected\n",
lane + 1);
}
lane++;
}
/* Save comphy index for MultiCP devices (A8K) */
chip_cfg->comphy_index = dev->seq;
/* PHY power UP sequence */
chip_cfg->ptr_comphy_chip_init(chip_cfg, comphy_map_data);
/* PHY print SerDes status */
comphy_print(chip_cfg, comphy_map_data);
/* 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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