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OpenCloudOS-Kernel/drivers/phy/microchip/lan966x_serdes.c

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// SPDX-License-Identifier: GPL-2.0-or-later
#include <linux/err.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/phy.h>
#include <linux/phy/phy.h>
#include <linux/platform_device.h>
#include <dt-bindings/phy/phy-lan966x-serdes.h>
#include "lan966x_serdes_regs.h"
#define PLL_CONF_MASK GENMASK(4, 3)
#define PLL_CONF_25MHZ 0
#define PLL_CONF_125MHZ 1
#define PLL_CONF_SERDES_125MHZ 2
#define PLL_CONF_BYPASS 3
#define lan_offset_(id, tinst, tcnt, \
gbase, ginst, gcnt, gwidth, \
raddr, rinst, rcnt, rwidth) \
(gbase + ((ginst) * gwidth) + raddr + ((rinst) * rwidth))
#define lan_offset(...) lan_offset_(__VA_ARGS__)
#define lan_rmw(val, mask, reg, off) \
lan_rmw_(val, mask, reg, lan_offset(off))
#define SERDES_MUX(_idx, _port, _mode, _submode, _mask, _mux) { \
.idx = _idx, \
.port = _port, \
.mode = _mode, \
.submode = _submode, \
.mask = _mask, \
.mux = _mux, \
}
#define SERDES_MUX_GMII(i, p, m, c) \
SERDES_MUX(i, p, PHY_MODE_ETHERNET, PHY_INTERFACE_MODE_GMII, m, c)
#define SERDES_MUX_SGMII(i, p, m, c) \
SERDES_MUX(i, p, PHY_MODE_ETHERNET, PHY_INTERFACE_MODE_SGMII, m, c)
#define SERDES_MUX_QSGMII(i, p, m, c) \
SERDES_MUX(i, p, PHY_MODE_ETHERNET, PHY_INTERFACE_MODE_QSGMII, m, c)
#define SERDES_MUX_RGMII(i, p, m, c) \
SERDES_MUX(i, p, PHY_MODE_ETHERNET, PHY_INTERFACE_MODE_RGMII, m, c), \
SERDES_MUX(i, p, PHY_MODE_ETHERNET, PHY_INTERFACE_MODE_RGMII_TXID, m, c), \
SERDES_MUX(i, p, PHY_MODE_ETHERNET, PHY_INTERFACE_MODE_RGMII_RXID, m, c), \
SERDES_MUX(i, p, PHY_MODE_ETHERNET, PHY_INTERFACE_MODE_RGMII_ID, m, c)
static void lan_rmw_(u32 val, u32 mask, void __iomem *mem, u32 offset)
{
u32 v;
v = readl(mem + offset);
v = (v & ~mask) | (val & mask);
writel(v, mem + offset);
}
struct serdes_mux {
u8 idx;
u8 port;
enum phy_mode mode;
int submode;
u32 mask;
u32 mux;
};
static const struct serdes_mux lan966x_serdes_muxes[] = {
SERDES_MUX_QSGMII(SERDES6G(1), 0, HSIO_HW_CFG_QSGMII_ENA,
HSIO_HW_CFG_QSGMII_ENA_SET(BIT(0))),
SERDES_MUX_QSGMII(SERDES6G(1), 1, HSIO_HW_CFG_QSGMII_ENA,
HSIO_HW_CFG_QSGMII_ENA_SET(BIT(0))),
SERDES_MUX_QSGMII(SERDES6G(1), 2, HSIO_HW_CFG_QSGMII_ENA,
HSIO_HW_CFG_QSGMII_ENA_SET(BIT(0))),
SERDES_MUX_QSGMII(SERDES6G(1), 3, HSIO_HW_CFG_QSGMII_ENA,
HSIO_HW_CFG_QSGMII_ENA_SET(BIT(0))),
SERDES_MUX_QSGMII(SERDES6G(2), 4, HSIO_HW_CFG_QSGMII_ENA,
HSIO_HW_CFG_QSGMII_ENA_SET(BIT(1))),
SERDES_MUX_QSGMII(SERDES6G(2), 5, HSIO_HW_CFG_QSGMII_ENA,
HSIO_HW_CFG_QSGMII_ENA_SET(BIT(1))),
SERDES_MUX_QSGMII(SERDES6G(2), 6, HSIO_HW_CFG_QSGMII_ENA,
HSIO_HW_CFG_QSGMII_ENA_SET(BIT(1))),
SERDES_MUX_QSGMII(SERDES6G(2), 7, HSIO_HW_CFG_QSGMII_ENA,
HSIO_HW_CFG_QSGMII_ENA_SET(BIT(1))),
SERDES_MUX_GMII(CU(0), 0, HSIO_HW_CFG_GMII_ENA,
HSIO_HW_CFG_GMII_ENA_SET(BIT(0))),
SERDES_MUX_GMII(CU(1), 1, HSIO_HW_CFG_GMII_ENA,
HSIO_HW_CFG_GMII_ENA_SET(BIT(1))),
SERDES_MUX_SGMII(SERDES6G(0), 0, HSIO_HW_CFG_SD6G_0_CFG, 0),
SERDES_MUX_SGMII(SERDES6G(1), 1, HSIO_HW_CFG_SD6G_1_CFG, 0),
SERDES_MUX_SGMII(SERDES6G(0), 2, HSIO_HW_CFG_SD6G_0_CFG,
HSIO_HW_CFG_SD6G_0_CFG_SET(1)),
SERDES_MUX_SGMII(SERDES6G(1), 3, HSIO_HW_CFG_SD6G_1_CFG,
HSIO_HW_CFG_SD6G_1_CFG_SET(1)),
SERDES_MUX_RGMII(RGMII(0), 2, HSIO_HW_CFG_RGMII_0_CFG |
HSIO_HW_CFG_RGMII_ENA |
HSIO_HW_CFG_GMII_ENA,
HSIO_HW_CFG_RGMII_0_CFG_SET(0) |
HSIO_HW_CFG_RGMII_ENA_SET(BIT(0)) |
HSIO_HW_CFG_GMII_ENA_SET(BIT(2))),
SERDES_MUX_RGMII(RGMII(1), 3, HSIO_HW_CFG_RGMII_1_CFG |
HSIO_HW_CFG_RGMII_ENA |
HSIO_HW_CFG_GMII_ENA,
HSIO_HW_CFG_RGMII_1_CFG_SET(0) |
HSIO_HW_CFG_RGMII_ENA_SET(BIT(1)) |
HSIO_HW_CFG_GMII_ENA_SET(BIT(3))),
SERDES_MUX_RGMII(RGMII(0), 5, HSIO_HW_CFG_RGMII_0_CFG |
HSIO_HW_CFG_RGMII_ENA |
HSIO_HW_CFG_GMII_ENA,
HSIO_HW_CFG_RGMII_0_CFG_SET(BIT(0)) |
HSIO_HW_CFG_RGMII_ENA_SET(BIT(0)) |
HSIO_HW_CFG_GMII_ENA_SET(BIT(5))),
SERDES_MUX_RGMII(RGMII(1), 6, HSIO_HW_CFG_RGMII_1_CFG |
HSIO_HW_CFG_RGMII_ENA |
HSIO_HW_CFG_GMII_ENA,
HSIO_HW_CFG_RGMII_1_CFG_SET(BIT(0)) |
HSIO_HW_CFG_RGMII_ENA_SET(BIT(1)) |
HSIO_HW_CFG_GMII_ENA_SET(BIT(6))),
};
struct serdes_ctrl {
void __iomem *regs;
struct device *dev;
struct phy *phys[SERDES_MAX];
int ref125;
};
struct serdes_macro {
u8 idx;
int port;
struct serdes_ctrl *ctrl;
int speed;
phy_interface_t mode;
};
enum lan966x_sd6g40_mode {
LAN966X_SD6G40_MODE_QSGMII,
LAN966X_SD6G40_MODE_SGMII,
};
enum lan966x_sd6g40_ltx2rx {
LAN966X_SD6G40_TX2RX_LOOP_NONE,
LAN966X_SD6G40_LTX2RX
};
struct lan966x_sd6g40_setup_args {
enum lan966x_sd6g40_mode mode;
enum lan966x_sd6g40_ltx2rx tx2rx_loop;
bool txinvert;
bool rxinvert;
bool refclk125M;
bool mute;
};
struct lan966x_sd6g40_mode_args {
enum lan966x_sd6g40_mode mode;
u8 lane_10bit_sel;
u8 mpll_multiplier;
u8 ref_clkdiv2;
u8 tx_rate;
u8 rx_rate;
};
struct lan966x_sd6g40_setup {
u8 rx_term_en;
u8 lane_10bit_sel;
u8 tx_invert;
u8 rx_invert;
u8 mpll_multiplier;
u8 lane_loopbk_en;
u8 ref_clkdiv2;
u8 tx_rate;
u8 rx_rate;
};
static int lan966x_sd6g40_reg_cfg(struct serdes_macro *macro,
struct lan966x_sd6g40_setup *res_struct,
u32 idx)
{
u32 value;
/* Note: SerDes HSIO is configured in 1G_LAN mode */
lan_rmw(HSIO_SD_CFG_LANE_10BIT_SEL_SET(res_struct->lane_10bit_sel) |
HSIO_SD_CFG_RX_RATE_SET(res_struct->rx_rate) |
HSIO_SD_CFG_TX_RATE_SET(res_struct->tx_rate) |
HSIO_SD_CFG_TX_INVERT_SET(res_struct->tx_invert) |
HSIO_SD_CFG_RX_INVERT_SET(res_struct->rx_invert) |
HSIO_SD_CFG_LANE_LOOPBK_EN_SET(res_struct->lane_loopbk_en) |
HSIO_SD_CFG_RX_RESET_SET(0) |
HSIO_SD_CFG_TX_RESET_SET(0),
HSIO_SD_CFG_LANE_10BIT_SEL |
HSIO_SD_CFG_RX_RATE |
HSIO_SD_CFG_TX_RATE |
HSIO_SD_CFG_TX_INVERT |
HSIO_SD_CFG_RX_INVERT |
HSIO_SD_CFG_LANE_LOOPBK_EN |
HSIO_SD_CFG_RX_RESET |
HSIO_SD_CFG_TX_RESET,
macro->ctrl->regs, HSIO_SD_CFG(idx));
lan_rmw(HSIO_MPLL_CFG_MPLL_MULTIPLIER_SET(res_struct->mpll_multiplier) |
HSIO_MPLL_CFG_REF_CLKDIV2_SET(res_struct->ref_clkdiv2),
HSIO_MPLL_CFG_MPLL_MULTIPLIER |
HSIO_MPLL_CFG_REF_CLKDIV2,
macro->ctrl->regs, HSIO_MPLL_CFG(idx));
lan_rmw(HSIO_SD_CFG_RX_TERM_EN_SET(res_struct->rx_term_en),
HSIO_SD_CFG_RX_TERM_EN,
macro->ctrl->regs, HSIO_SD_CFG(idx));
lan_rmw(HSIO_MPLL_CFG_REF_SSP_EN_SET(1),
HSIO_MPLL_CFG_REF_SSP_EN,
macro->ctrl->regs, HSIO_MPLL_CFG(idx));
usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
lan_rmw(HSIO_SD_CFG_PHY_RESET_SET(0),
HSIO_SD_CFG_PHY_RESET,
macro->ctrl->regs, HSIO_SD_CFG(idx));
usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
lan_rmw(HSIO_MPLL_CFG_MPLL_EN_SET(1),
HSIO_MPLL_CFG_MPLL_EN,
macro->ctrl->regs, HSIO_MPLL_CFG(idx));
usleep_range(7 * USEC_PER_MSEC, 8 * USEC_PER_MSEC);
value = readl(macro->ctrl->regs + lan_offset(HSIO_SD_STAT(idx)));
value = HSIO_SD_STAT_MPLL_STATE_GET(value);
if (value != 0x1) {
dev_err(macro->ctrl->dev,
"Unexpected sd_sd_stat[%u] mpll_state was 0x1 but is 0x%x\n",
idx, value);
return -EIO;
}
lan_rmw(HSIO_SD_CFG_TX_CM_EN_SET(1),
HSIO_SD_CFG_TX_CM_EN,
macro->ctrl->regs, HSIO_SD_CFG(idx));
usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
value = readl(macro->ctrl->regs + lan_offset(HSIO_SD_STAT(idx)));
value = HSIO_SD_STAT_TX_CM_STATE_GET(value);
if (value != 0x1) {
dev_err(macro->ctrl->dev,
"Unexpected sd_sd_stat[%u] tx_cm_state was 0x1 but is 0x%x\n",
idx, value);
return -EIO;
}
lan_rmw(HSIO_SD_CFG_RX_PLL_EN_SET(1) |
HSIO_SD_CFG_TX_EN_SET(1),
HSIO_SD_CFG_RX_PLL_EN |
HSIO_SD_CFG_TX_EN,
macro->ctrl->regs, HSIO_SD_CFG(idx));
usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
/* Waiting for serdes 0 rx DPLL to lock... */
value = readl(macro->ctrl->regs + lan_offset(HSIO_SD_STAT(idx)));
value = HSIO_SD_STAT_RX_PLL_STATE_GET(value);
if (value != 0x1) {
dev_err(macro->ctrl->dev,
"Unexpected sd_sd_stat[%u] rx_pll_state was 0x1 but is 0x%x\n",
idx, value);
return -EIO;
}
/* Waiting for serdes 0 tx operational... */
value = readl(macro->ctrl->regs + lan_offset(HSIO_SD_STAT(idx)));
value = HSIO_SD_STAT_TX_STATE_GET(value);
if (value != 0x1) {
dev_err(macro->ctrl->dev,
"Unexpected sd_sd_stat[%u] tx_state was 0x1 but is 0x%x\n",
idx, value);
return -EIO;
}
lan_rmw(HSIO_SD_CFG_TX_DATA_EN_SET(1) |
HSIO_SD_CFG_RX_DATA_EN_SET(1),
HSIO_SD_CFG_TX_DATA_EN |
HSIO_SD_CFG_RX_DATA_EN,
macro->ctrl->regs, HSIO_SD_CFG(idx));
return 0;
}
static int lan966x_sd6g40_get_conf_from_mode(struct serdes_macro *macro,
enum lan966x_sd6g40_mode f_mode,
bool ref125M,
struct lan966x_sd6g40_mode_args *ret_val)
{
switch (f_mode) {
case LAN966X_SD6G40_MODE_QSGMII:
ret_val->lane_10bit_sel = 0;
if (ref125M) {
ret_val->mpll_multiplier = 40;
ret_val->ref_clkdiv2 = 0x1;
ret_val->tx_rate = 0x0;
ret_val->rx_rate = 0x0;
} else {
ret_val->mpll_multiplier = 100;
ret_val->ref_clkdiv2 = 0x0;
ret_val->tx_rate = 0x0;
ret_val->rx_rate = 0x0;
}
break;
case LAN966X_SD6G40_MODE_SGMII:
ret_val->lane_10bit_sel = 1;
if (ref125M) {
ret_val->mpll_multiplier = macro->speed == SPEED_2500 ? 50 : 40;
ret_val->ref_clkdiv2 = 0x1;
ret_val->tx_rate = macro->speed == SPEED_2500 ? 0x1 : 0x2;
ret_val->rx_rate = macro->speed == SPEED_2500 ? 0x1 : 0x2;
} else {
ret_val->mpll_multiplier = macro->speed == SPEED_2500 ? 125 : 100;
ret_val->ref_clkdiv2 = 0x0;
ret_val->tx_rate = macro->speed == SPEED_2500 ? 0x1 : 0x2;
ret_val->rx_rate = macro->speed == SPEED_2500 ? 0x1 : 0x2;
}
break;
default:
return -EOPNOTSUPP;
}
return 0;
}
static int lan966x_calc_sd6g40_setup_lane(struct serdes_macro *macro,
struct lan966x_sd6g40_setup_args config,
struct lan966x_sd6g40_setup *ret_val)
{
struct lan966x_sd6g40_mode_args sd6g40_mode;
struct lan966x_sd6g40_mode_args *mode_args = &sd6g40_mode;
int ret;
ret = lan966x_sd6g40_get_conf_from_mode(macro, config.mode,
config.refclk125M, mode_args);
if (ret)
return ret;
ret_val->lane_10bit_sel = mode_args->lane_10bit_sel;
ret_val->rx_rate = mode_args->rx_rate;
ret_val->tx_rate = mode_args->tx_rate;
ret_val->mpll_multiplier = mode_args->mpll_multiplier;
ret_val->ref_clkdiv2 = mode_args->ref_clkdiv2;
ret_val->rx_term_en = 0;
if (config.tx2rx_loop == LAN966X_SD6G40_LTX2RX)
ret_val->lane_loopbk_en = 1;
else
ret_val->lane_loopbk_en = 0;
ret_val->tx_invert = !!config.txinvert;
ret_val->rx_invert = !!config.rxinvert;
return 0;
}
static int lan966x_sd6g40_setup_lane(struct serdes_macro *macro,
struct lan966x_sd6g40_setup_args config,
u32 idx)
{
struct lan966x_sd6g40_setup calc_results = {};
int ret;
ret = lan966x_calc_sd6g40_setup_lane(macro, config, &calc_results);
if (ret)
return ret;
return lan966x_sd6g40_reg_cfg(macro, &calc_results, idx);
}
static int lan966x_sd6g40_setup(struct serdes_macro *macro, u32 idx, int mode)
{
struct lan966x_sd6g40_setup_args conf = {};
conf.refclk125M = macro->ctrl->ref125;
if (mode == PHY_INTERFACE_MODE_QSGMII)
conf.mode = LAN966X_SD6G40_MODE_QSGMII;
else
conf.mode = LAN966X_SD6G40_MODE_SGMII;
return lan966x_sd6g40_setup_lane(macro, conf, idx);
}
static int lan966x_rgmii_setup(struct serdes_macro *macro, u32 idx, int mode)
{
bool tx_delay = false;
bool rx_delay = false;
/* Configure RGMII */
lan_rmw(HSIO_RGMII_CFG_RGMII_RX_RST_SET(0) |
HSIO_RGMII_CFG_RGMII_TX_RST_SET(0) |
HSIO_RGMII_CFG_TX_CLK_CFG_SET(macro->speed == SPEED_1000 ? 1 :
macro->speed == SPEED_100 ? 2 :
macro->speed == SPEED_10 ? 3 : 0),
HSIO_RGMII_CFG_RGMII_RX_RST |
HSIO_RGMII_CFG_RGMII_TX_RST |
HSIO_RGMII_CFG_TX_CLK_CFG,
macro->ctrl->regs, HSIO_RGMII_CFG(idx));
if (mode == PHY_INTERFACE_MODE_RGMII ||
mode == PHY_INTERFACE_MODE_RGMII_TXID)
rx_delay = true;
if (mode == PHY_INTERFACE_MODE_RGMII ||
mode == PHY_INTERFACE_MODE_RGMII_RXID)
tx_delay = true;
/* Setup DLL configuration */
lan_rmw(HSIO_DLL_CFG_DLL_RST_SET(0) |
HSIO_DLL_CFG_DLL_ENA_SET(rx_delay),
HSIO_DLL_CFG_DLL_RST |
HSIO_DLL_CFG_DLL_ENA,
macro->ctrl->regs, HSIO_DLL_CFG(idx == 0 ? 0x0 : 0x2));
lan_rmw(HSIO_DLL_CFG_DELAY_ENA_SET(rx_delay),
HSIO_DLL_CFG_DELAY_ENA,
macro->ctrl->regs, HSIO_DLL_CFG(idx == 0 ? 0x0 : 0x2));
lan_rmw(HSIO_DLL_CFG_DLL_RST_SET(0) |
HSIO_DLL_CFG_DLL_ENA_SET(tx_delay),
HSIO_DLL_CFG_DLL_RST |
HSIO_DLL_CFG_DLL_ENA,
macro->ctrl->regs, HSIO_DLL_CFG(idx == 0 ? 0x1 : 0x3));
lan_rmw(HSIO_DLL_CFG_DELAY_ENA_SET(tx_delay),
HSIO_DLL_CFG_DELAY_ENA,
macro->ctrl->regs, HSIO_DLL_CFG(idx == 0 ? 0x1 : 0x3));
return 0;
}
static int serdes_set_speed(struct phy *phy, int speed)
{
struct serdes_macro *macro = phy_get_drvdata(phy);
if (!phy_interface_mode_is_rgmii(macro->mode))
return 0;
macro->speed = speed;
lan966x_rgmii_setup(macro, macro->idx - (SERDES6G_MAX + 1), macro->mode);
return 0;
}
static int serdes_set_mode(struct phy *phy, enum phy_mode mode, int submode)
{
struct serdes_macro *macro = phy_get_drvdata(phy);
unsigned int i;
int val;
/* As of now only PHY_MODE_ETHERNET is supported */
if (mode != PHY_MODE_ETHERNET)
return -EOPNOTSUPP;
if (submode == PHY_INTERFACE_MODE_2500BASEX)
macro->speed = SPEED_2500;
else
macro->speed = SPEED_1000;
if (submode == PHY_INTERFACE_MODE_1000BASEX ||
submode == PHY_INTERFACE_MODE_2500BASEX)
submode = PHY_INTERFACE_MODE_SGMII;
if (submode == PHY_INTERFACE_MODE_QUSGMII)
submode = PHY_INTERFACE_MODE_QSGMII;
for (i = 0; i < ARRAY_SIZE(lan966x_serdes_muxes); i++) {
if (macro->idx != lan966x_serdes_muxes[i].idx ||
mode != lan966x_serdes_muxes[i].mode ||
submode != lan966x_serdes_muxes[i].submode ||
macro->port != lan966x_serdes_muxes[i].port)
continue;
val = readl(macro->ctrl->regs + lan_offset(HSIO_HW_CFG));
val |= lan966x_serdes_muxes[i].mux;
lan_rmw(val, lan966x_serdes_muxes[i].mask,
macro->ctrl->regs, HSIO_HW_CFG);
macro->mode = lan966x_serdes_muxes[i].submode;
if (macro->idx < CU_MAX)
return 0;
if (macro->idx < SERDES6G_MAX)
return lan966x_sd6g40_setup(macro,
macro->idx - (CU_MAX + 1),
macro->mode);
if (macro->idx < RGMII_MAX)
return lan966x_rgmii_setup(macro,
macro->idx - (SERDES6G_MAX + 1),
macro->mode);
return -EOPNOTSUPP;
}
return -EINVAL;
}
static const struct phy_ops serdes_ops = {
.set_mode = serdes_set_mode,
.set_speed = serdes_set_speed,
.owner = THIS_MODULE,
};
static struct phy *serdes_simple_xlate(struct device *dev,
struct of_phandle_args *args)
{
struct serdes_ctrl *ctrl = dev_get_drvdata(dev);
unsigned int port, idx, i;
if (args->args_count != 2)
return ERR_PTR(-EINVAL);
port = args->args[0];
idx = args->args[1];
for (i = 0; i < SERDES_MAX; i++) {
struct serdes_macro *macro = phy_get_drvdata(ctrl->phys[i]);
if (idx != macro->idx)
continue;
macro->port = port;
return ctrl->phys[i];
}
return ERR_PTR(-ENODEV);
}
static int serdes_phy_create(struct serdes_ctrl *ctrl, u8 idx, struct phy **phy)
{
struct serdes_macro *macro;
*phy = devm_phy_create(ctrl->dev, NULL, &serdes_ops);
if (IS_ERR(*phy))
return PTR_ERR(*phy);
macro = devm_kzalloc(ctrl->dev, sizeof(*macro), GFP_KERNEL);
if (!macro)
return -ENOMEM;
macro->idx = idx;
macro->ctrl = ctrl;
macro->port = -1;
phy_set_drvdata(*phy, macro);
return 0;
}
static int serdes_probe(struct platform_device *pdev)
{
struct phy_provider *provider;
struct serdes_ctrl *ctrl;
void __iomem *hw_stat;
unsigned int i;
u32 val;
int ret;
ctrl = devm_kzalloc(&pdev->dev, sizeof(*ctrl), GFP_KERNEL);
if (!ctrl)
return -ENOMEM;
ctrl->dev = &pdev->dev;
ctrl->regs = devm_platform_get_and_ioremap_resource(pdev, 0, NULL);
if (IS_ERR(ctrl->regs))
return PTR_ERR(ctrl->regs);
hw_stat = devm_platform_get_and_ioremap_resource(pdev, 1, NULL);
if (IS_ERR(hw_stat))
return PTR_ERR(hw_stat);
for (i = 0; i < SERDES_MAX; i++) {
ret = serdes_phy_create(ctrl, i, &ctrl->phys[i]);
if (ret)
return ret;
}
val = readl(hw_stat);
val = FIELD_GET(PLL_CONF_MASK, val);
ctrl->ref125 = (val == PLL_CONF_125MHZ ||
val == PLL_CONF_SERDES_125MHZ);
dev_set_drvdata(&pdev->dev, ctrl);
provider = devm_of_phy_provider_register(ctrl->dev,
serdes_simple_xlate);
return PTR_ERR_OR_ZERO(provider);
}
static const struct of_device_id serdes_ids[] = {
{ .compatible = "microchip,lan966x-serdes", },
{},
};
MODULE_DEVICE_TABLE(of, serdes_ids);
static struct platform_driver mscc_lan966x_serdes = {
.probe = serdes_probe,
.driver = {
.name = "microchip,lan966x-serdes",
.of_match_table = of_match_ptr(serdes_ids),
},
};
module_platform_driver(mscc_lan966x_serdes);
MODULE_DESCRIPTION("Microchip lan966x switch serdes driver");
MODULE_AUTHOR("Horatiu Vultur <horatiu.vultur@microchip.com>");
MODULE_LICENSE("GPL v2");
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