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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 <linux/errno.h>
- #include <asm/io.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->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;
- }
- 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->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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