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Message-ID: <0882751c9a272e7adc3a68dcfe0b8cab815933af.camel@microchip.com>
Date: Tue, 16 Feb 2021 10:58:38 +0000
From: <Bjarni.Jonasson@...rochip.com>
To: <andrew@...n.ch>, <linux@...linux.org.uk>, <f.fainelli@...il.com>,
<kuba@...nel.org>, <vladimir.oltean@....com>,
<davem@...emloft.net>, <hkallweit1@...il.com>,
<atenart@...nel.org>, <ioana.ciornei@....com>
CC: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<UNGLinuxDriver@...rochip.com>, <Steen.Hegelund@...rochip.com>
Subject: Re: [PATCH net-next v2 2/3] net: phy: mscc: improved serdes
calibration applied to VSC8514
On Mon, 2021-02-15 at 18:27 +0100, Heiner Kallweit wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you
> know the content is safe
>
> On 15.02.2021 17:57, Bjarni Jonasson wrote:
> > The current IB serdes calibration algorithm (performed by the
> > onboard 8051)
> > has proven to be unstable for the VSC8514 QSGMII phy.
> > A new algorithm has been developed based on
> > 'Frequency-offset Jittered-Injection' or 'FoJi' method which solves
> > all known issues. This patch disables the 8051 algorithm and
> > replaces it with the new FoJi algorithm.
> > The calibration is now performed in the drive.
> >
> > Signed-off-by: Steen Hegelund <steen.hegelund@...rochip.com>
> > Signed-off-by: Bjarni Jonasson <bjarni.jonasson@...rochip.com>
> > Tested-by: Vladimir Oltean <vladimir.oltean@....com>
> > Fixes: e4f9ba642f0b ("net: phy: mscc: add support for VSC8514
> > PHY.")
> > ---
> > v1 -> v2:
> > Preserved reversed christmas tree
> > Changed net to net-next
> >
> > drivers/net/phy/mscc/mscc.h | 23 +
> > drivers/net/phy/mscc/mscc_main.c | 930 +++++++++++++++++++++++++
> > ------
> > 2 files changed, 795 insertions(+), 158 deletions(-)
>
> This is a massive workaround. Would it make sense to place it in a
> separate source code file instead of polluting mscc_main.c?
> This may improve maintainability.
Yes its big. Unfortunatly we had to pull he serdes tuning into the
driver.
Seperate file sounds like an good idea. The new file would then be the
placeholder for all serdes related configuration, will call it
'mscc_serdes.c'. The bulk of this patch will go into that file while
the first patch is not really a serdes configuration and would stay in
mscc_main.c.
>
> >
> > diff --git a/drivers/net/phy/mscc/mscc.h
> > b/drivers/net/phy/mscc/mscc.h
> > index c2023f93c0b2..9d8ee387739e 100644
> > --- a/drivers/net/phy/mscc/mscc.h
> > +++ b/drivers/net/phy/mscc/mscc.h
> > @@ -113,6 +113,9 @@ enum rgmii_clock_delay {
> > #define PHY_S6G_PLL_STATUS 0x31
> > #define PHY_S6G_IB_STATUS0 0x2f
> >
> > +#define PHY_S6G_PLL5G_CFG2_GAIN_MASK GENMASK(9, 5)
> > +#define PHY_S6G_PLL5G_CFG2_ENA_GAIN 1
> > +
> > #define PHY_S6G_SYS_RST_POS 31
> > #define PHY_S6G_ENA_LANE_POS 18
> > #define PHY_S6G_ENA_LOOP_POS 8
> > @@ -125,6 +128,21 @@ enum rgmii_clock_delay {
> > #define PHY_S6G_CFG2_FSM_DIS 1
> > #define PHY_S6G_CFG2_FSM_CLK_BP 23
> >
> > +#define PHY_S6G_DES_PHY_CTRL_POS 13
> > +#define PHY_S6G_DES_MBTR_CTRL_POS 10
> > +#define PHY_S6G_DES_CPMD_SEL_POS 8
> > +#define PHY_S6G_DES_BW_HYST_POS 5
> > +#define PHY_S6G_DES_BW_ANA_POS 1
> > +#define PHY_S6G_DES_CFG 0x21
> > +#define PHY_S6G_IB_CFG0 0x22
> > +#define PHY_S6G_IB_CFG1 0x23
> > +#define PHY_S6G_IB_CFG2 0x24
> > +#define PHY_S6G_IB_CFG3 0x25
> > +#define PHY_S6G_IB_CFG4 0x26
> > +#define PHY_S6G_GP_CFG 0x2E
> > +#define PHY_S6G_DFT_CFG0 0x35
> > +#define PHY_S6G_IB_DFT_CFG2 0x37
> > +
> > #define MSCC_EXT_PAGE_ACCESS 31
> > #define MSCC_PHY_PAGE_STANDARD 0x0000 /* Standard
> > registers */
> > #define MSCC_PHY_PAGE_EXTENDED 0x0001 /* Extended
> > registers */
> > @@ -140,6 +158,7 @@ enum rgmii_clock_delay {
> > #define MSCC_PHY_PAGE_1588 0x1588 /* PTP (1588) */
> > #define MSCC_PHY_PAGE_TEST 0x2a30 /* Test reg */
> > #define MSCC_PHY_PAGE_TR 0x52b5 /* Token ring
> > registers */
> > +#define MSCC_PHY_GPIO_CONTROL_2 14
> >
> > /* Extended Page 1 Registers */
> > #define MSCC_PHY_CU_MEDIA_CRC_VALID_CNT 18
> > @@ -339,6 +358,10 @@ enum rgmii_clock_delay {
> > #define VSC8584_REVB 0x0001
> > #define MSCC_DEV_REV_MASK GENMASK(3, 0)
> >
> > +#define MSCC_ROM_TRAP_SERDES_6G_CFG 0x1E48
> > +#define MSCC_RAM_TRAP_SERDES_6G_CFG 0x1E4F
> > +#define PATCH_VEC_ZERO_EN 0x0100
> > +
> > struct reg_val {
> > u16 reg;
> > u32 val;
> > diff --git a/drivers/net/phy/mscc/mscc_main.c
> > b/drivers/net/phy/mscc/mscc_main.c
> > index 09650c3340a1..03181542bcb7 100644
> > --- a/drivers/net/phy/mscc/mscc_main.c
> > +++ b/drivers/net/phy/mscc/mscc_main.c
> > @@ -1738,6 +1738,738 @@ static int vsc85xx_config_init(struct
> > phy_device *phydev)
> > return 0;
> > }
> >
> > +static int __phy_write_mcb_s6g(struct phy_device *phydev, u32 reg,
> > u8 mcb,
> > + u32 op)
> > +{
> > + unsigned long deadline;
> > + u32 val;
> > + int ret;
> > +
> > + ret = vsc85xx_csr_write(phydev, PHY_MCB_TARGET, reg,
> > + op | (1 << mcb));
> > + if (ret)
> > + return -EINVAL;
> > +
> > + deadline = jiffies +
> > msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS);
> > + do {
> > + usleep_range(500, 1000);
> > + val = vsc85xx_csr_read(phydev, PHY_MCB_TARGET, reg);
> > +
> > + if (val == 0xffffffff)
> > + return -EIO;
> > +
> > + } while (time_before(jiffies, deadline) && (val & op));
> > +
> > + if (val & op)
> > + return -ETIMEDOUT;
> > +
> > + return 0;
> > +}
> > +
> > +/* Trigger a read to the specified MCB */
> > +static int phy_update_mcb_s6g(struct phy_device *phydev, u32 reg,
> > u8 mcb)
> > +{
> > + return __phy_write_mcb_s6g(phydev, reg, mcb,
> > PHY_MCB_S6G_READ);
> > +}
> > +
> > +/* Trigger a write to the specified MCB */
> > +static int phy_commit_mcb_s6g(struct phy_device *phydev, u32 reg,
> > u8 mcb)
> > +{
> > + return __phy_write_mcb_s6g(phydev, reg, mcb,
> > PHY_MCB_S6G_WRITE);
> > +}
> > +
> > +static int pll5g_detune(struct phy_device *phydev)
> > +{
> > + u32 rd_dat;
> > + int ret;
> > +
> > + rd_dat = vsc85xx_csr_read(phydev, MACRO_CTRL,
> > PHY_S6G_PLL5G_CFG2);
> > + rd_dat &= ~PHY_S6G_PLL5G_CFG2_GAIN_MASK;
> > + rd_dat |= PHY_S6G_PLL5G_CFG2_ENA_GAIN;
> > + ret = vsc85xx_csr_write(phydev, MACRO_CTRL,
> > + PHY_S6G_PLL5G_CFG2, rd_dat);
> > + if (ret)
> > + dev_err(&phydev->mdio.dev, "%s: write error\n",
> > __func__);
> > + return ret;
> > +}
> > +
> > +static int pll5g_tune(struct phy_device *phydev)
> > +{
> > + u32 rd_dat;
> > + int ret;
> > +
> > + rd_dat = vsc85xx_csr_read(phydev, MACRO_CTRL,
> > PHY_S6G_PLL5G_CFG2);
> > + rd_dat &= ~PHY_S6G_PLL5G_CFG2_ENA_GAIN;
> > + ret = vsc85xx_csr_write(phydev, MACRO_CTRL,
> > + PHY_S6G_PLL5G_CFG2, rd_dat);
> > + if (ret)
> > + dev_err(&phydev->mdio.dev, "%s: write error\n",
> > __func__);
> > + return ret;
> > +}
> > +
> > +static int vsc85xx_sd6g_pll_cfg_wr(struct phy_device *phydev,
> > + const u32 pll_ena_offs,
> > + const u32 pll_fsm_ctrl_data,
> > + const u32 pll_fsm_ena)
> > +{
> > + int ret;
> > +
> > + ret = vsc85xx_csr_write(phydev, MACRO_CTRL,
> > + PHY_S6G_PLL_CFG,
> > + (pll_fsm_ena <<
> > PHY_S6G_PLL_ENA_OFFS_POS) |
> > + (pll_fsm_ctrl_data <<
> > PHY_S6G_PLL_FSM_CTRL_DATA_POS) |
> > + (pll_ena_offs <<
> > PHY_S6G_PLL_FSM_ENA_POS));
> > + if (ret)
> > + dev_err(&phydev->mdio.dev, "%s: write error\n",
> > __func__);
> > + return ret;
> > +}
> > +
> > +static int vsc85xx_sd6g_common_cfg_wr(struct phy_device *phydev,
> > + const u32 sys_rst,
> > + const u32 ena_lane,
> > + const u32 ena_loop,
> > + const u32 qrate,
> > + const u32 if_mode,
> > + const u32 pwd_tx)
> > +{
> > + /* ena_loop = 8 for eloop */
> > + /* = 4 for floop */
> > + /* = 2 for iloop */
> > + /* = 1 for ploop */
> > + /* qrate = 1 for SGMII, 0 for QSGMII */
> > + /* if_mode = 1 for SGMII, 3 for QSGMII */
> > +
> > + int ret;
> > +
> > + ret = vsc85xx_csr_write(phydev, MACRO_CTRL,
> > + PHY_S6G_COMMON_CFG,
> > + (sys_rst << PHY_S6G_SYS_RST_POS) |
> > + (ena_lane << PHY_S6G_ENA_LANE_POS) |
> > + (ena_loop << PHY_S6G_ENA_LOOP_POS) |
> > + (qrate << PHY_S6G_QRATE_POS) |
> > + (if_mode << PHY_S6G_IF_MODE_POS));
> > + if (ret)
> > + dev_err(&phydev->mdio.dev, "%s: write error\n",
> > __func__);
> > + return ret;
> > +}
> > +
> > +static int vsc85xx_sd6g_des_cfg_wr(struct phy_device *phydev,
> > + const u32 des_phy_ctrl,
> > + const u32 des_mbtr_ctrl,
> > + const u32 des_bw_hyst,
> > + const u32 des_bw_ana,
> > + const u32 des_cpmd_sel)
> > +{
> > + u32 reg_val;
> > + int ret;
> > +
> > + /* configurable terms */
> > + reg_val = (des_phy_ctrl << PHY_S6G_DES_PHY_CTRL_POS) |
> > + (des_mbtr_ctrl << PHY_S6G_DES_MBTR_CTRL_POS) |
> > + (des_cpmd_sel << PHY_S6G_DES_CPMD_SEL_POS) |
> > + (des_bw_hyst << PHY_S6G_DES_BW_HYST_POS) |
> > + (des_bw_ana << PHY_S6G_DES_BW_ANA_POS);
> > + ret = vsc85xx_csr_write(phydev, MACRO_CTRL,
> > + PHY_S6G_DES_CFG,
> > + reg_val);
> > + if (ret)
> > + dev_err(&phydev->mdio.dev, "%s: write error\n",
> > __func__);
> > + return ret;
> > +}
> > +
> > +static int vsc85xx_sd6g_ib_cfg0_wr(struct phy_device *phydev,
> > + const u32 ib_rtrm_adj,
> > + const u32 ib_sig_det_clk_sel,
> > + const u32 ib_reg_pat_sel_offset,
> > + const u32 ib_cal_ena)
> > +{
> > + u32 base_val;
> > + u32 reg_val;
> > + int ret;
> > +
> > + /* constant terms */
> > + base_val = 0x60a85837;
> > + /* configurable terms */
> > + reg_val = base_val | (ib_rtrm_adj << 25) |
> > + (ib_sig_det_clk_sel << 16) |
> > + (ib_reg_pat_sel_offset << 8) |
> > + (ib_cal_ena << 3);
> > + ret = vsc85xx_csr_write(phydev, MACRO_CTRL,
> > + PHY_S6G_IB_CFG0,
> > + reg_val);
> > + if (ret)
> > + dev_err(&phydev->mdio.dev, "%s: write error\n",
> > __func__);
> > + return ret;
> > +}
> > +
> > +static int vsc85xx_sd6g_ib_cfg1_wr(struct phy_device *phydev,
> > + const u32 ib_tjtag,
> > + const u32 ib_tsdet,
> > + const u32 ib_scaly,
> > + const u32 ib_frc_offset,
> > + const u32 ib_filt_offset)
> > +{
> > + u32 ib_filt_val;
> > + u32 reg_val = 0;
> > + int ret;
> > +
> > + /* constant terms */
> > + ib_filt_val = 0xe0;
> > + /* configurable terms */
> > + reg_val = (ib_tjtag << 17) + (ib_tsdet << 12) + (ib_scaly <<
> > 8) +
> > + ib_filt_val + (ib_filt_offset << 4) +
> > (ib_frc_offset << 0);
> > + ret = vsc85xx_csr_write(phydev, MACRO_CTRL,
> > + PHY_S6G_IB_CFG1,
> > + reg_val);
> > + if (ret)
> > + dev_err(&phydev->mdio.dev, "%s: write error\n",
> > __func__);
> > + return ret;
> > +}
> > +
> > +static int vsc85xx_sd6g_ib_cfg2_wr(struct phy_device *phydev,
> > + const u32 ib_tinfv,
> > + const u32 ib_tcalv,
> > + const u32 ib_ureg)
> > +{
> > + u32 ib_cfg2_val;
> > + u32 base_val;
> > + int ret;
> > +
> > + /* constant terms */
> > + base_val = 0x0f878010;
> > + /* configurable terms */
> > + ib_cfg2_val = base_val | ((ib_tinfv) << 28) | ((ib_tcalv) <<
> > 5) |
> > + (ib_ureg << 0);
> > + ret = vsc85xx_csr_write(phydev, MACRO_CTRL,
> > + PHY_S6G_IB_CFG2,
> > + ib_cfg2_val);
> > + if (ret)
> > + dev_err(&phydev->mdio.dev, "%s: write error\n",
> > __func__);
> > + return ret;
> > +}
> > +
> > +static int vsc85xx_sd6g_ib_cfg3_wr(struct phy_device *phydev,
> > + const u32 ib_ini_hp,
> > + const u32 ib_ini_mid,
> > + const u32 ib_ini_lp,
> > + const u32 ib_ini_offset)
> > +{
> > + u32 reg_val;
> > + int ret;
> > +
> > + reg_val = (ib_ini_hp << 24) + (ib_ini_mid << 16) +
> > + (ib_ini_lp << 8) + (ib_ini_offset << 0);
> > + ret = vsc85xx_csr_write(phydev, MACRO_CTRL,
> > + PHY_S6G_IB_CFG3,
> > + reg_val);
> > + if (ret)
> > + dev_err(&phydev->mdio.dev, "%s: write error\n",
> > __func__);
> > + return ret;
> > +}
> > +
> > +static int vsc85xx_sd6g_ib_cfg4_wr(struct phy_device *phydev,
> > + const u32 ib_max_hp,
> > + const u32 ib_max_mid,
> > + const u32 ib_max_lp,
> > + const u32 ib_max_offset)
> > +{
> > + u32 reg_val;
> > + int ret;
> > +
> > + reg_val = (ib_max_hp << 24) + (ib_max_mid << 16) +
> > + (ib_max_lp << 8) + (ib_max_offset << 0);
> > + ret = vsc85xx_csr_write(phydev, MACRO_CTRL,
> > + PHY_S6G_IB_CFG4,
> > + reg_val);
> > + if (ret)
> > + dev_err(&phydev->mdio.dev, "%s: write error\n",
> > __func__);
> > + return ret;
> > +}
> > +
> > +static int vsc85xx_sd6g_misc_cfg_wr(struct phy_device *phydev,
> > + const u32 lane_rst)
> > +{
> > + int ret;
> > +
> > + ret = vsc85xx_csr_write(phydev, MACRO_CTRL,
> > + PHY_S6G_MISC_CFG,
> > + lane_rst);
> > + if (ret)
> > + dev_err(&phydev->mdio.dev, "%s: write error\n",
> > __func__);
> > + return ret;
> > +}
> > +
> > +static int vsc85xx_sd6g_gp_cfg_wr(struct phy_device *phydev, const
> > u32 gp_cfg_val)
> > +{
> > + int ret;
> > +
> > + ret = vsc85xx_csr_write(phydev, MACRO_CTRL,
> > + PHY_S6G_GP_CFG,
> > + gp_cfg_val);
> > + if (ret)
> > + dev_err(&phydev->mdio.dev, "%s: write error\n",
> > __func__);
> > + return ret;
> > +}
> > +
> > +static int vsc85xx_sd6g_dft_cfg2_wr(struct phy_device *phydev,
> > + const u32 rx_ji_ampl,
> > + const u32 rx_step_freq,
> > + const u32 rx_ji_ena,
> > + const u32 rx_waveform_sel,
> > + const u32 rx_freqoff_dir,
> > + const u32 rx_freqoff_ena)
> > +{
> > + u32 reg_val;
> > + int ret;
> > +
> > + /* configurable terms */
> > + reg_val = (rx_ji_ampl << 8) | (rx_step_freq << 4) |
> > + (rx_ji_ena << 3) | (rx_waveform_sel << 2) |
> > + (rx_freqoff_dir << 1) | rx_freqoff_ena;
> > + ret = vsc85xx_csr_write(phydev, MACRO_CTRL,
> > + PHY_S6G_IB_DFT_CFG2,
> > + reg_val);
> > + if (ret)
> > + dev_err(&phydev->mdio.dev, "%s: write error\n",
> > __func__);
> > + return ret;
> > +}
> > +
> > +static int vsc85xx_sd6g_dft_cfg0_wr(struct phy_device *phydev,
> > + const u32 prbs_sel,
> > + const u32 test_mode,
> > + const u32 rx_dft_ena)
> > +{
> > + u32 reg_val;
> > + int ret;
> > +
> > + /* configurable terms */
> > + reg_val = (prbs_sel << 20) | (test_mode << 16) | (rx_dft_ena
> > << 2);
> > + ret = vsc85xx_csr_write(phydev, MACRO_CTRL,
> > + PHY_S6G_DFT_CFG0,
> > + reg_val);
> > + if (ret)
> > + dev_err(&phydev->mdio.dev, "%s: write error\n",
> > __func__);
> > + return ret;
> > +}
> > +
> > +/* Access LCPLL Cfg_0 */
> > +static int vsc85xx_pll5g_cfg0_wr(struct phy_device *phydev,
> > + const u32 selbgv820)
> > +{
> > + u32 base_val;
> > + u32 reg_val;
> > + int ret;
> > +
> > + /* constant terms */
> > + base_val = 0x7036f145;
> > + /* configurable terms */
> > + reg_val = base_val | (selbgv820 << 23);
> > + ret = vsc85xx_csr_write(phydev, MACRO_CTRL,
> > + PHY_S6G_PLL5G_CFG0, reg_val);
> > + if (ret)
> > + dev_err(&phydev->mdio.dev, "%s: write error\n",
> > __func__);
> > + return ret;
> > +}
> > +
> > +static int vsc85xx_sd6g_config_v2(struct phy_device *phydev)
> > +{
> > + u32 ib_sig_det_clk_sel_cal = 0;
> > + u32 ib_sig_det_clk_sel_mm = 7;
> > + u32 pll_fsm_ctrl_data = 60;
> > + unsigned long deadline;
> > + u32 des_bw_ana_val = 3;
> > + u32 ib_tsdet_cal = 16;
> > + u32 ib_tsdet_mm = 5;
> > + u32 ib_rtrm_adj;
> > + u32 if_mode = 1;
> > + u32 gp_iter = 5;
> > + u32 val32 = 0;
> > + u32 qrate = 1;
> > + u32 iter;
> > + int val = 0;
> > + int ret;
> > +
> > + phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
> > MSCC_PHY_PAGE_STANDARD);
> > +
> > + /* Detune/Unlock LCPLL */
> > + ret = pll5g_detune(phydev);
> > + if (ret)
> > + return ret;
> > +
> > + /* 0. Reset RCPLL */
> > + ret = vsc85xx_sd6g_pll_cfg_wr(phydev, 3, pll_fsm_ctrl_data,
> > 0);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_common_cfg_wr(phydev, 0, 0, 0, qrate,
> > if_mode, 0);
> > + if (ret)
> > + return ret;
> > + ret = phy_commit_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_des_cfg_wr(phydev, 6, 2, 5,
> > des_bw_ana_val, 0);
> > + if (ret)
> > + return ret;
> > +
> > + /* 1. Configure sd6g for SGMII prior to sd6g_IB_CAL */
> > + ib_rtrm_adj = 13;
> > + ret = vsc85xx_sd6g_ib_cfg0_wr(phydev, ib_rtrm_adj,
> > ib_sig_det_clk_sel_mm, 0, 0);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_ib_cfg1_wr(phydev, 8, ib_tsdet_mm, 15, 0,
> > 1);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_ib_cfg2_wr(phydev, 3, 13, 5);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_ib_cfg3_wr(phydev, 0, 31, 1, 31);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_ib_cfg4_wr(phydev, 63, 63, 2, 63);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_common_cfg_wr(phydev, 1, 1, 0, qrate,
> > if_mode, 0);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_misc_cfg_wr(phydev, 1);
> > + if (ret)
> > + return ret;
> > + ret = phy_commit_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > + if (ret)
> > + return ret;
> > +
> > + /* 2. Start rcpll_fsm */
> > + ret = vsc85xx_sd6g_pll_cfg_wr(phydev, 3, pll_fsm_ctrl_data,
> > 1);
> > + if (ret)
> > + return ret;
> > + ret = phy_commit_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > + if (ret)
> > + return ret;
> > +
> > + deadline = jiffies +
> > msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS);
> > + do {
> > + usleep_range(500, 1000);
> > + ret = phy_update_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > + if (ret)
> > + return ret;
> > + val32 = vsc85xx_csr_read(phydev, MACRO_CTRL,
> > + PHY_S6G_PLL_STATUS);
> > + /* wait for bit 12 to clear */
> > + } while (time_before(jiffies, deadline) && (val32 &
> > BIT(12)));
> > +
> > + if (val32 & BIT(12))
> > + return -ETIMEDOUT;
> > +
> > + /* 4. Release digital reset and disable transmitter */
> > + ret = vsc85xx_sd6g_misc_cfg_wr(phydev, 0);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_common_cfg_wr(phydev, 1, 1, 0, qrate,
> > if_mode, 1);
> > + if (ret)
> > + return ret;
> > + ret = phy_commit_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > + if (ret)
> > + return ret;
> > +
> > + /* 5. Apply a frequency offset on RX-side (using internal
> > FoJi logic) */
> > + ret = vsc85xx_sd6g_gp_cfg_wr(phydev, 768);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_dft_cfg2_wr(phydev, 0, 2, 0, 0, 0, 1);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_dft_cfg0_wr(phydev, 0, 0, 1);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_des_cfg_wr(phydev, 6, 2, 5,
> > des_bw_ana_val, 2);
> > + if (ret)
> > + return ret;
> > + ret = phy_commit_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > + if (ret)
> > + return ret;
> > +
> > + /* 6. Prepare required settings for IBCAL */
> > + ret = vsc85xx_sd6g_ib_cfg1_wr(phydev, 8, ib_tsdet_cal, 15, 1,
> > 0);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_ib_cfg0_wr(phydev, ib_rtrm_adj,
> > ib_sig_det_clk_sel_cal, 0, 0);
> > + if (ret)
> > + return ret;
> > + ret = phy_commit_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > + if (ret)
> > + return ret;
> > +
> > + /* 7. Start IB_CAL */
> > + ret = vsc85xx_sd6g_ib_cfg0_wr(phydev, ib_rtrm_adj,
> > + ib_sig_det_clk_sel_cal, 0, 1);
> > + if (ret)
> > + return ret;
> > + ret = phy_commit_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > + if (ret)
> > + return ret;
> > + /* 11 cycles (for ViperA) or 5 cycles (for ViperB & Elise) w/
> > SW clock */
> > + for (iter = 0; iter < gp_iter; iter++) {
> > + /* set gp(0) */
> > + ret = vsc85xx_sd6g_gp_cfg_wr(phydev, 769);
> > + if (ret)
> > + return ret;
> > + ret = phy_commit_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > + if (ret)
> > + return ret;
> > + /* clear gp(0) */
> > + ret = vsc85xx_sd6g_gp_cfg_wr(phydev, 768);
> > + if (ret)
> > + return ret;
> > + ret = phy_commit_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > + if (ret)
> > + return ret;
> > + }
> > +
> > + ret = vsc85xx_sd6g_ib_cfg1_wr(phydev, 8, ib_tsdet_cal, 15, 1,
> > 1);
> > + if (ret)
> > + return ret;
> > + ret = phy_commit_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_ib_cfg1_wr(phydev, 8, ib_tsdet_cal, 15, 0,
> > 1);
> > + if (ret)
> > + return ret;
> > + ret = phy_commit_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > + if (ret)
> > + return ret;
> > +
> > + /* 8. Wait for IB cal to complete */
> > + deadline = jiffies +
> > msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS);
> > + do {
> > + usleep_range(500, 1000);
> > + ret = phy_update_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > + if (ret)
> > + return ret;
> > + val32 = vsc85xx_csr_read(phydev, MACRO_CTRL,
> > + PHY_S6G_IB_STATUS0);
> > + /* wait for bit 8 to set */
> > + } while (time_before(jiffies, deadline) && (~val32 &
> > BIT(8)));
> > +
> > + if (~val32 & BIT(8))
> > + return -ETIMEDOUT;
> > +
> > + /* 9. Restore cfg values for mission mode */
> > + ret = vsc85xx_sd6g_ib_cfg0_wr(phydev, ib_rtrm_adj,
> > ib_sig_det_clk_sel_mm, 0, 1);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_ib_cfg1_wr(phydev, 8, ib_tsdet_mm, 15, 0,
> > 1);
> > + if (ret)
> > + return ret;
> > + ret = phy_commit_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > + if (ret)
> > + return ret;
> > +
> > + /* 10. Re-enable transmitter */
> > + ret = vsc85xx_sd6g_common_cfg_wr(phydev, 1, 1, 0, qrate,
> > if_mode, 0);
> > + if (ret)
> > + return ret;
> > + ret = phy_commit_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > + if (ret)
> > + return ret;
> > +
> > + /* 11. Disable frequency offset generation (using internal
> > FoJi logic) */
> > + ret = vsc85xx_sd6g_dft_cfg2_wr(phydev, 0, 0, 0, 0, 0, 0);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_dft_cfg0_wr(phydev, 0, 0, 0);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_des_cfg_wr(phydev, 6, 2, 5,
> > des_bw_ana_val, 0);
> > + if (ret)
> > + return ret;
> > + ret = phy_commit_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > + if (ret)
> > + return ret;
> > +
> > + /* Tune/Re-lock LCPLL */
> > + ret = pll5g_tune(phydev);
> > + if (ret)
> > + return ret;
> > +
> > + /* 12. Configure for Final Configuration and Settings */
> > + /* a. Reset RCPLL */
> > + ret = vsc85xx_sd6g_pll_cfg_wr(phydev, 3, pll_fsm_ctrl_data,
> > 0);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_common_cfg_wr(phydev, 0, 1, 0, qrate,
> > if_mode, 0);
> > + if (ret)
> > + return ret;
> > + ret = phy_commit_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > + if (ret)
> > + return ret;
> > +
> > + /* b. Configure sd6g for desired operating mode */
> > + phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
> > MSCC_PHY_PAGE_EXTENDED_GPIO);
> > + ret = phy_base_read(phydev, MSCC_PHY_MAC_CFG_FASTLINK);
> > + if ((ret & MAC_CFG_MASK) == MAC_CFG_QSGMII) {
> > + /* QSGMII */
> > + pll_fsm_ctrl_data = 120;
> > + qrate = 0;
> > + if_mode = 3;
> > + des_bw_ana_val = 5;
> > + val = PROC_CMD_MCB_ACCESS_MAC_CONF |
> > PROC_CMD_RST_CONF_PORT |
> > + PROC_CMD_READ_MOD_WRITE_PORT |
> > PROC_CMD_QSGMII_MAC;
> > +
> > + ret = vsc8584_cmd(phydev, val);
> > + if (ret) {
> > + dev_err(&phydev->mdio.dev, "%s: QSGMII error:
> > %d\n",
> > + __func__, ret);
> > + return ret;
> > + }
> > +
> > + phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
> > MSCC_PHY_PAGE_STANDARD);
> > + } else if ((ret & MAC_CFG_MASK) == MAC_CFG_SGMII) {
> > + /* SGMII */
> > + pll_fsm_ctrl_data = 60;
> > + qrate = 1;
> > + if_mode = 1;
> > + des_bw_ana_val = 3;
> > +
> > + val = PROC_CMD_MCB_ACCESS_MAC_CONF |
> > PROC_CMD_RST_CONF_PORT |
> > + PROC_CMD_READ_MOD_WRITE_PORT |
> > PROC_CMD_SGMII_MAC;
> > +
> > + ret = vsc8584_cmd(phydev, val);
> > + if (ret) {
> > + dev_err(&phydev->mdio.dev, "%s: SGMII error:
> > %d\n",
> > + __func__, ret);
> > + return ret;
> > + }
> > +
> > + phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
> > MSCC_PHY_PAGE_STANDARD);
> > + } else {
> > + dev_err(&phydev->mdio.dev, "%s: invalid mac_if:
> > %x\n",
> > + __func__, ret);
> > + }
> > +
> > + ret = phy_update_mcb_s6g(phydev, PHY_S6G_LCPLL_CFG, 0);
> > + if (ret)
> > + return ret;
> > + ret = phy_update_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_pll5g_cfg0_wr(phydev, 4);
> > + if (ret)
> > + return ret;
> > + ret = phy_commit_mcb_s6g(phydev, PHY_S6G_LCPLL_CFG, 0);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_des_cfg_wr(phydev, 6, 2, 5,
> > des_bw_ana_val, 0);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_ib_cfg0_wr(phydev, ib_rtrm_adj,
> > ib_sig_det_clk_sel_mm, 0, 1);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_ib_cfg1_wr(phydev, 8, ib_tsdet_mm, 15, 0,
> > 1);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_common_cfg_wr(phydev, 1, 1, 0, qrate,
> > if_mode, 0);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_ib_cfg2_wr(phydev, 3, 13, 5);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_ib_cfg3_wr(phydev, 0, 31, 1, 31);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_ib_cfg4_wr(phydev, 63, 63, 2, 63);
> > + if (ret)
> > + return ret;
> > + ret = vsc85xx_sd6g_misc_cfg_wr(phydev, 1);
> > + if (ret)
> > + return ret;
> > + ret = phy_commit_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > + if (ret)
> > + return ret;
> > +
> > + /* 13. Start rcpll_fsm */
> > + ret = vsc85xx_sd6g_pll_cfg_wr(phydev, 3, pll_fsm_ctrl_data,
> > 1);
> > + if (ret)
> > + return ret;
> > + ret = phy_commit_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > + if (ret)
> > + return ret;
> > +
> > + /* 14. Wait for PLL cal to complete */
> > + deadline = jiffies +
> > msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS);
> > + do {
> > + usleep_range(500, 1000);
> > + ret = phy_update_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > + if (ret)
> > + return ret;
> > + val32 = vsc85xx_csr_read(phydev, MACRO_CTRL,
> > + PHY_S6G_PLL_STATUS);
> > + /* wait for bit 12 to clear */
> > + } while (time_before(jiffies, deadline) && (val32 &
> > BIT(12)));
> > +
> > + if (val32 & BIT(12))
> > + return -ETIMEDOUT;
> > +
> > + /* release lane reset */
> > + ret = vsc85xx_sd6g_misc_cfg_wr(phydev, 0);
> > + if (ret)
> > + return ret;
> > +
> > + return phy_commit_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > +}
> > +
> > +static int vsc8514_config_host_serdes(struct phy_device *phydev)
> > +{
> > + int ret;
> > + u16 val;
> > +
> > + ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
> > + MSCC_PHY_PAGE_EXTENDED_GPIO);
> > + if (ret)
> > + return ret;
> > +
> > + val = phy_base_read(phydev, MSCC_PHY_MAC_CFG_FASTLINK);
> > + val &= ~MAC_CFG_MASK;
> > + val |= MAC_CFG_QSGMII;
> > + ret = phy_base_write(phydev, MSCC_PHY_MAC_CFG_FASTLINK, val);
> > + if (ret)
> > + return ret;
> > +
> > + ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
> > + MSCC_PHY_PAGE_STANDARD);
> > + if (ret)
> > + return ret;
> > +
> > + ret = vsc8584_cmd(phydev, PROC_CMD_NOP);
> > + if (ret)
> > + return ret;
> > +
> > + ret = vsc8584_cmd(phydev,
> > + PROC_CMD_MCB_ACCESS_MAC_CONF |
> > + PROC_CMD_RST_CONF_PORT |
> > + PROC_CMD_READ_MOD_WRITE_PORT |
> > PROC_CMD_QSGMII_MAC);
> > + if (ret) {
> > + dev_err(&phydev->mdio.dev, "%s: QSGMII error: %d\n",
> > + __func__, ret);
> > + return ret;
> > + }
> > +
> > + /* Apply 6G SerDes FOJI Algorithm
> > + * Initial condition requirement:
> > + * 1. hold 8051 in reset
> > + * 2. disable patch vector 0, in order to allow IB cal poll
> > during FoJi
> > + * 3. deassert 8051 reset after change patch vector status
> > + * 4. proceed with FoJi (vsc85xx_sd6g_config_v2)
> > + */
> > + vsc8584_micro_assert_reset(phydev);
> > + val = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
> > + /* clear bit 8, to disable patch vector 0 */
> > + val &= ~PATCH_VEC_ZERO_EN;
> > + ret = phy_base_write(phydev, MSCC_INT_MEM_CNTL, val);
> > + /* Enable 8051 clock, don't set patch present, disable PRAM
> > clock override */
> > + vsc8584_micro_deassert_reset(phydev, false);
> > +
> > + return vsc85xx_sd6g_config_v2(phydev);
> > +}
> > +
> > static int vsc8514_config_pre_init(struct phy_device *phydev)
> > {
> > /* These are the settings to override the silicon default
> > @@ -1807,56 +2539,48 @@ static int vsc8514_config_pre_init(struct
> > phy_device *phydev)
> > reg &= ~SMI_BROADCAST_WR_EN;
> > phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);
> >
> > - return 0;
> > -}
> > -
> > -static int __phy_write_mcb_s6g(struct phy_device *phydev, u32 reg,
> > u8 mcb,
> > - u32 op)
> > -{
> > - unsigned long deadline;
> > - u32 val;
> > - int ret;
> > + /* Add pre-patching commands to:
> > + * 1. enable 8051 clock, operate 8051 clock at 125 MHz
> > + * instead of HW default 62.5MHz
> > + * 2. write patch vector 0, to skip IB cal polling executed
> > + * as part of the 0x80E0 ROM command
> > + */
> > + vsc8584_micro_deassert_reset(phydev, false);
> >
> > - ret = vsc85xx_csr_write(phydev, PHY_MCB_TARGET, reg,
> > - op | (1 << mcb));
> > + vsc8584_micro_assert_reset(phydev);
> > + phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
> > + MSCC_PHY_PAGE_EXTENDED_GPIO);
> > + /* ROM address to trap, for patch vector 0 */
> > + reg = MSCC_ROM_TRAP_SERDES_6G_CFG;
> > + ret = phy_base_write(phydev, MSCC_TRAP_ROM_ADDR(1), reg);
> > if (ret)
> > - return -EINVAL;
> > -
> > - deadline = jiffies +
> > msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS);
> > - do {
> > - usleep_range(500, 1000);
> > - val = vsc85xx_csr_read(phydev, PHY_MCB_TARGET, reg);
> > -
> > - if (val == 0xffffffff)
> > - return -EIO;
> > -
> > - } while (time_before(jiffies, deadline) && (val & op));
> > -
> > - if (val & op)
> > - return -ETIMEDOUT;
> > -
> > - return 0;
> > -}
> > -
> > -/* Trigger a read to the specified MCB */
> > -static int phy_update_mcb_s6g(struct phy_device *phydev, u32 reg,
> > u8 mcb)
> > -{
> > - return __phy_write_mcb_s6g(phydev, reg, mcb,
> > PHY_MCB_S6G_READ);
> > -}
> > + goto err;
> > + /* RAM address to jump to, when patch vector 0 enabled */
> > + reg = MSCC_RAM_TRAP_SERDES_6G_CFG;
> > + ret = phy_base_write(phydev, MSCC_PATCH_RAM_ADDR(1), reg);
> > + if (ret)
> > + goto err;
> > + reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
> > + reg |= PATCH_VEC_ZERO_EN; /* bit 8, enable patch vector 0 */
> > + ret = phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg);
> > + if (ret)
> > + goto err;
> >
> > -/* Trigger a write to the specified MCB */
> > -static int phy_commit_mcb_s6g(struct phy_device *phydev, u32 reg,
> > u8 mcb)
> > -{
> > - return __phy_write_mcb_s6g(phydev, reg, mcb,
> > PHY_MCB_S6G_WRITE);
> > + /* Enable 8051 clock, don't set patch present
> > + * yet, disable PRAM clock override
> > + */
> > + vsc8584_micro_deassert_reset(phydev, false);
> > + return ret;
> > + err:
> > + /* restore 8051 and bail w error */
> > + vsc8584_micro_deassert_reset(phydev, false);
> > + return ret;
> > }
> >
> > static int vsc8514_config_init(struct phy_device *phydev)
> > {
> > struct vsc8531_private *vsc8531 = phydev->priv;
> > - unsigned long deadline;
> > int ret, i;
> > - u16 val;
> > - u32 reg;
> >
> > phydev->mdix_ctrl = ETH_TP_MDI_AUTO;
> >
> > @@ -1873,123 +2597,13 @@ static int vsc8514_config_init(struct
> > phy_device *phydev)
> > * do the correct init sequence for all PHYs that are
> > package-critical
> > * in this pre-init function.
> > */
> > - if (phy_package_init_once(phydev))
> > - vsc8514_config_pre_init(phydev);
> > -
> > - ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
> > - MSCC_PHY_PAGE_EXTENDED_GPIO);
> > - if (ret)
> > - goto err;
> > -
> > - val = phy_base_read(phydev, MSCC_PHY_MAC_CFG_FASTLINK);
> > -
> > - val &= ~MAC_CFG_MASK;
> > - val |= MAC_CFG_QSGMII;
> > - ret = phy_base_write(phydev, MSCC_PHY_MAC_CFG_FASTLINK, val);
> > - if (ret)
> > - goto err;
> > -
> > - ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
> > - MSCC_PHY_PAGE_STANDARD);
> > - if (ret)
> > - goto err;
> > -
> > - ret = vsc8584_cmd(phydev,
> > - PROC_CMD_MCB_ACCESS_MAC_CONF |
> > - PROC_CMD_RST_CONF_PORT |
> > - PROC_CMD_READ_MOD_WRITE_PORT |
> > PROC_CMD_QSGMII_MAC);
> > - if (ret)
> > - goto err;
> > -
> > - /* 6g mcb */
> > - phy_update_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > - /* lcpll mcb */
> > - phy_update_mcb_s6g(phydev, PHY_S6G_LCPLL_CFG, 0);
> > - /* pll5gcfg0 */
> > - ret = vsc85xx_csr_write(phydev, PHY_MCB_TARGET,
> > - PHY_S6G_PLL5G_CFG0, 0x7036f145);
> > - if (ret)
> > - goto err;
> > -
> > - phy_commit_mcb_s6g(phydev, PHY_S6G_LCPLL_CFG, 0);
> > - /* pllcfg */
> > - ret = vsc85xx_csr_write(phydev, PHY_MCB_TARGET,
> > - PHY_S6G_PLL_CFG,
> > - (3 << PHY_S6G_PLL_ENA_OFFS_POS) |
> > - (120 <<
> > PHY_S6G_PLL_FSM_CTRL_DATA_POS)
> > - | (0 << PHY_S6G_PLL_FSM_ENA_POS));
> > - if (ret)
> > - goto err;
> > -
> > - /* commoncfg */
> > - ret = vsc85xx_csr_write(phydev, PHY_MCB_TARGET,
> > - PHY_S6G_COMMON_CFG,
> > - (0 << PHY_S6G_SYS_RST_POS) |
> > - (0 << PHY_S6G_ENA_LANE_POS) |
> > - (0 << PHY_S6G_ENA_LOOP_POS) |
> > - (0 << PHY_S6G_QRATE_POS) |
> > - (3 << PHY_S6G_IF_MODE_POS));
> > - if (ret)
> > - goto err;
> > -
> > - /* misccfg */
> > - ret = vsc85xx_csr_write(phydev, PHY_MCB_TARGET,
> > - PHY_S6G_MISC_CFG, 1);
> > - if (ret)
> > - goto err;
> > -
> > - /* gpcfg */
> > - ret = vsc85xx_csr_write(phydev, PHY_MCB_TARGET,
> > - PHY_S6G_GPC_CFG, 768);
> > - if (ret)
> > - goto err;
> > -
> > - phy_commit_mcb_s6g(phydev, PHY_S6G_DFT_CFG2, 0);
> > -
> > - deadline = jiffies +
> > msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS);
> > - do {
> > - usleep_range(500, 1000);
> > - phy_update_mcb_s6g(phydev, PHY_MCB_S6G_CFG,
> > - 0); /* read 6G MCB into CSRs */
> > - reg = vsc85xx_csr_read(phydev, PHY_MCB_TARGET,
> > - PHY_S6G_PLL_STATUS);
> > - if (reg == 0xffffffff) {
> > - phy_unlock_mdio_bus(phydev);
> > - return -EIO;
> > - }
> > -
> > - } while (time_before(jiffies, deadline) && (reg & BIT(12)));
> > -
> > - if (reg & BIT(12)) {
> > - phy_unlock_mdio_bus(phydev);
> > - return -ETIMEDOUT;
> > - }
> > -
> > - /* misccfg */
> > - ret = vsc85xx_csr_write(phydev, PHY_MCB_TARGET,
> > - PHY_S6G_MISC_CFG, 0);
> > - if (ret)
> > - goto err;
> > -
> > - phy_commit_mcb_s6g(phydev, PHY_MCB_S6G_CFG, 0);
> > -
> > - deadline = jiffies +
> > msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS);
> > - do {
> > - usleep_range(500, 1000);
> > - phy_update_mcb_s6g(phydev, PHY_MCB_S6G_CFG,
> > - 0); /* read 6G MCB into CSRs */
> > - reg = vsc85xx_csr_read(phydev, PHY_MCB_TARGET,
> > - PHY_S6G_IB_STATUS0);
> > - if (reg == 0xffffffff) {
> > - phy_unlock_mdio_bus(phydev);
> > - return -EIO;
> > - }
> > -
> > - } while (time_before(jiffies, deadline) && !(reg & BIT(8)));
> > -
> > - if (!(reg & BIT(8))) {
> > - phy_unlock_mdio_bus(phydev);
> > - return -ETIMEDOUT;
> > + if (phy_package_init_once(phydev)) {
> > + ret = vsc8514_config_pre_init(phydev);
> > + if (ret)
> > + goto err;
> > + ret = vsc8514_config_host_serdes(phydev);
> > + if (ret)
> > + goto err;
> > }
> >
> > phy_unlock_mdio_bus(phydev);
> >
>
>
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