[PATCH] phy: cadence: Sierra: Add PCIe + SGMII PHY multilink configuration
Swapnil Kashinath Jakhade
sjakhade at cadence.com
Thu Mar 9 02:12:05 PST 2023
Hi Siddharth,
> -----Original Message-----
> From: Siddharth Vadapalli <s-vadapalli at ti.com>
> Sent: Thursday, March 9, 2023 3:34 PM
> To: vkoul at kernel.org; kishon at kernel.org; lars at metafoo.de
> Cc: linux-phy at lists.infradead.org; linux-kernel at vger.kernel.org; linux-arm-
> kernel at lists.infradead.org; Swapnil Kashinath Jakhade
> <sjakhade at cadence.com>; srk at ti.com; s-vadapalli at ti.com
> Subject: [PATCH] phy: cadence: Sierra: Add PCIe + SGMII PHY multilink
> configuration
>
> EXTERNAL MAIL
>
>
> From: Swapnil Jakhade <sjakhade at cadence.com>
>
> Add register sequences for PCIe + SGMII PHY multilink configuration.
>
> Signed-off-by: Swapnil Jakhade <sjakhade at cadence.com>
> Signed-off-by: Siddharth Vadapalli <s-vadapalli at ti.com>
> ---
I have already sent this patch for review.
https://patchwork.kernel.org/project/linux-phy/patch/20230220141216.25326-1-sjakhade@cadence.com/
Thanks & regards,
Swapnil
> drivers/phy/cadence/phy-cadence-sierra.c | 141 ++++++++++++++++++++++-
> 1 file changed, 139 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/phy/cadence/phy-cadence-sierra.c
> b/drivers/phy/cadence/phy-cadence-sierra.c
> index 6e86a6517f37..7c0daf3e8880 100644
> --- a/drivers/phy/cadence/phy-cadence-sierra.c
> +++ b/drivers/phy/cadence/phy-cadence-sierra.c
> @@ -24,7 +24,7 @@
> #include <dt-bindings/phy/phy-cadence.h>
>
> #define NUM_SSC_MODE 3
> -#define NUM_PHY_TYPE 4
> +#define NUM_PHY_TYPE 5
>
> /* PHY register offsets */
> #define SIERRA_COMMON_CDB_OFFSET 0x0
> @@ -46,7 +46,9 @@
> #define SIERRA_CMN_REFRCV_PREG 0x98
> #define SIERRA_CMN_REFRCV1_PREG 0xB8
> #define SIERRA_CMN_PLLLC1_GEN_PREG 0xC2
> +#define SIERRA_CMN_PLLLC1_FBDIV_INT_PREG 0xC3
> #define SIERRA_CMN_PLLLC1_LF_COEFF_MODE0_PREG 0xCA
> +#define SIERRA_CMN_PLLLC1_CLK0_PREG 0xCE
> #define SIERRA_CMN_PLLLC1_BWCAL_MODE0_PREG 0xD0
> #define SIERRA_CMN_PLLLC1_SS_TIME_STEPSIZE_MODE_PREG 0xE2
>
> @@ -74,6 +76,7 @@
> #define SIERRA_PSC_RX_A1_PREG 0x031
> #define SIERRA_PSC_RX_A2_PREG 0x032
> #define SIERRA_PSC_RX_A3_PREG 0x033
> +#define SIERRA_PLLCTRL_FBDIV_MODE01_PREG 0x039
> #define SIERRA_PLLCTRL_SUBRATE_PREG 0x03A
> #define SIERRA_PLLCTRL_GEN_A_PREG 0x03B
> #define SIERRA_PLLCTRL_GEN_D_PREG 0x03E
> @@ -298,6 +301,7 @@ enum cdns_sierra_phy_type {
> TYPE_NONE,
> TYPE_PCIE,
> TYPE_USB,
> + TYPE_SGMII,
> TYPE_QSGMII
> };
>
> @@ -936,6 +940,9 @@ static int cdns_sierra_get_optional(struct
> cdns_sierra_inst *inst,
> case PHY_TYPE_USB3:
> inst->phy_type = TYPE_USB;
> break;
> + case PHY_TYPE_SGMII:
> + inst->phy_type = TYPE_SGMII;
> + break;
> case PHY_TYPE_QSGMII:
> inst->phy_type = TYPE_QSGMII;
> break;
> @@ -1339,7 +1346,7 @@ static int
> cdns_sierra_phy_configure_multilink(struct cdns_sierra_phy *sp)
> }
> }
>
> - if (phy_t1 == TYPE_QSGMII)
> + if (phy_t1 == TYPE_SGMII || phy_t1 == TYPE_QSGMII)
> reset_control_deassert(sp->phys[node].lnk_rst);
> }
>
> @@ -1537,6 +1544,71 @@ static int cdns_sierra_phy_remove(struct
> platform_device *pdev)
> return 0;
> }
>
> +/* SGMII PHY PMA lane configuration */
> +static struct cdns_reg_pairs sgmii_phy_pma_ln_regs[] = {
> + {0x9010, SIERRA_PHY_PMA_XCVR_CTRL}
> +};
> +
> +static struct cdns_sierra_vals sgmii_phy_pma_ln_vals = {
> + .reg_pairs = sgmii_phy_pma_ln_regs,
> + .num_regs = ARRAY_SIZE(sgmii_phy_pma_ln_regs),
> +};
> +
> +/* SGMII refclk 100MHz, no ssc, opt3 and GE1 links using PLL LC1 */
> +static const struct cdns_reg_pairs
> sgmii_100_no_ssc_plllc1_opt3_cmn_regs[] = {
> + {0x002D, SIERRA_CMN_PLLLC1_FBDIV_INT_PREG},
> + {0x2085, SIERRA_CMN_PLLLC1_LF_COEFF_MODE0_PREG},
> + {0x1005, SIERRA_CMN_PLLLC1_CLK0_PREG},
> + {0x0000, SIERRA_CMN_PLLLC1_BWCAL_MODE0_PREG},
> + {0x0800, SIERRA_CMN_PLLLC1_SS_TIME_STEPSIZE_MODE_PREG}
> +};
> +
> +static const struct cdns_reg_pairs sgmii_100_no_ssc_plllc1_opt3_ln_regs[] =
> {
> + {0x688E, SIERRA_DET_STANDEC_D_PREG},
> + {0x0004, SIERRA_PSC_LN_IDLE_PREG},
> + {0x0FFE, SIERRA_PSC_RX_A0_PREG},
> + {0x0106, SIERRA_PLLCTRL_FBDIV_MODE01_PREG},
> + {0x0013, SIERRA_PLLCTRL_SUBRATE_PREG},
> + {0x0003, SIERRA_PLLCTRL_GEN_A_PREG},
> + {0x0106, SIERRA_PLLCTRL_GEN_D_PREG},
> + {0x5231, SIERRA_PLLCTRL_CPGAIN_MODE_PREG },
> + {0x0000, SIERRA_DRVCTRL_ATTEN_PREG},
> + {0x9702, SIERRA_DRVCTRL_BOOST_PREG},
> + {0x0051, SIERRA_RX_CREQ_FLTR_A_MODE0_PREG},
> + {0x3C0E, SIERRA_CREQ_CCLKDET_MODE01_PREG},
> + {0x3220, SIERRA_CREQ_FSMCLK_SEL_PREG},
> + {0x0000, SIERRA_CREQ_EQ_CTRL_PREG},
> + {0x0002, SIERRA_DEQ_PHALIGN_CTRL},
> + {0x0186, SIERRA_DEQ_GLUT0},
> + {0x0186, SIERRA_DEQ_GLUT1},
> + {0x0186, SIERRA_DEQ_GLUT2},
> + {0x0186, SIERRA_DEQ_GLUT3},
> + {0x0186, SIERRA_DEQ_GLUT4},
> + {0x0861, SIERRA_DEQ_ALUT0},
> + {0x07E0, SIERRA_DEQ_ALUT1},
> + {0x079E, SIERRA_DEQ_ALUT2},
> + {0x071D, SIERRA_DEQ_ALUT3},
> + {0x03F5, SIERRA_DEQ_DFETAP_CTRL_PREG},
> + {0x0C01, SIERRA_DEQ_TAU_CTRL1_FAST_MAINT_PREG},
> + {0x3C40, SIERRA_DEQ_TAU_CTRL1_SLOW_MAINT_PREG},
> + {0x1C04, SIERRA_DEQ_TAU_CTRL2_PREG},
> + {0x0033, SIERRA_DEQ_PICTRL_PREG},
> + {0x0000, SIERRA_CPI_OUTBUF_RATESEL_PREG},
> + {0x0B6D, SIERRA_CPI_RESBIAS_BIN_PREG},
> + {0x0102, SIERRA_RXBUFFER_CTLECTRL_PREG},
> + {0x0002, SIERRA_RXBUFFER_RCDFECTRL_PREG}
> +};
> +
> +static struct cdns_sierra_vals sgmii_100_no_ssc_plllc1_opt3_cmn_vals = {
> + .reg_pairs = sgmii_100_no_ssc_plllc1_opt3_cmn_regs,
> + .num_regs = ARRAY_SIZE(sgmii_100_no_ssc_plllc1_opt3_cmn_regs),
> +};
> +
> +static struct cdns_sierra_vals sgmii_100_no_ssc_plllc1_opt3_ln_vals = {
> + .reg_pairs = sgmii_100_no_ssc_plllc1_opt3_ln_regs,
> + .num_regs = ARRAY_SIZE(sgmii_100_no_ssc_plllc1_opt3_ln_regs),
> +};
> +
> /* QSGMII PHY PMA lane configuration */
> static struct cdns_reg_pairs qsgmii_phy_pma_ln_regs[] = {
> {0x9010, SIERRA_PHY_PMA_XCVR_CTRL}
> @@ -2363,6 +2435,11 @@ static const struct cdns_sierra_data
> cdns_map_sierra = {
> [EXTERNAL_SSC] = &pcie_phy_pcs_cmn_vals,
> [INTERNAL_SSC] = &pcie_phy_pcs_cmn_vals,
> },
> + [TYPE_SGMII] = {
> + [NO_SSC] = &pcie_phy_pcs_cmn_vals,
> + [EXTERNAL_SSC] = &pcie_phy_pcs_cmn_vals,
> + [INTERNAL_SSC] = &pcie_phy_pcs_cmn_vals,
> + },
> [TYPE_QSGMII] = {
> [NO_SSC] = &pcie_phy_pcs_cmn_vals,
> [EXTERNAL_SSC] = &pcie_phy_pcs_cmn_vals,
> @@ -2377,6 +2454,11 @@ static const struct cdns_sierra_data
> cdns_map_sierra = {
> [EXTERNAL_SSC] =
> &pcie_100_ext_ssc_cmn_vals,
> [INTERNAL_SSC] =
> &pcie_100_int_ssc_cmn_vals,
> },
> + [TYPE_SGMII] = {
> + [NO_SSC] =
> &pcie_100_no_ssc_plllc_cmn_vals,
> + [EXTERNAL_SSC] =
> &pcie_100_ext_ssc_plllc_cmn_vals,
> + [INTERNAL_SSC] =
> &pcie_100_int_ssc_plllc_cmn_vals,
> + },
> [TYPE_QSGMII] = {
> [NO_SSC] =
> &pcie_100_no_ssc_plllc_cmn_vals,
> [EXTERNAL_SSC] =
> &pcie_100_ext_ssc_plllc_cmn_vals,
> @@ -2388,6 +2470,13 @@ static const struct cdns_sierra_data
> cdns_map_sierra = {
> [EXTERNAL_SSC] =
> &usb_100_ext_ssc_cmn_vals,
> },
> },
> + [TYPE_SGMII] = {
> + [TYPE_PCIE] = {
> + [NO_SSC] =
> &sgmii_100_no_ssc_plllc1_opt3_cmn_vals,
> + [EXTERNAL_SSC] =
> &sgmii_100_no_ssc_plllc1_opt3_cmn_vals,
> + [INTERNAL_SSC] =
> &sgmii_100_no_ssc_plllc1_opt3_cmn_vals,
> + },
> + },
> [TYPE_QSGMII] = {
> [TYPE_PCIE] = {
> [NO_SSC] =
> &qsgmii_100_no_ssc_plllc1_cmn_vals,
> @@ -2403,6 +2492,11 @@ static const struct cdns_sierra_data
> cdns_map_sierra = {
> [EXTERNAL_SSC] = &pcie_100_ext_ssc_ln_vals,
> [INTERNAL_SSC] = &pcie_100_int_ssc_ln_vals,
> },
> + [TYPE_SGMII] = {
> + [NO_SSC] = &ml_pcie_100_no_ssc_ln_vals,
> + [EXTERNAL_SSC] =
> &ml_pcie_100_ext_ssc_ln_vals,
> + [INTERNAL_SSC] =
> &ml_pcie_100_int_ssc_ln_vals,
> + },
> [TYPE_QSGMII] = {
> [NO_SSC] = &ml_pcie_100_no_ssc_ln_vals,
> [EXTERNAL_SSC] =
> &ml_pcie_100_ext_ssc_ln_vals,
> @@ -2414,6 +2508,13 @@ static const struct cdns_sierra_data
> cdns_map_sierra = {
> [EXTERNAL_SSC] = &usb_100_ext_ssc_ln_vals,
> },
> },
> + [TYPE_SGMII] = {
> + [TYPE_PCIE] = {
> + [NO_SSC] =
> &sgmii_100_no_ssc_plllc1_opt3_ln_vals,
> + [EXTERNAL_SSC] =
> &sgmii_100_no_ssc_plllc1_opt3_ln_vals,
> + [INTERNAL_SSC] =
> &sgmii_100_no_ssc_plllc1_opt3_ln_vals,
> + },
> + },
> [TYPE_QSGMII] = {
> [TYPE_PCIE] = {
> [NO_SSC] =
> &qsgmii_100_no_ssc_plllc1_ln_vals,
> @@ -2435,6 +2536,11 @@ static const struct cdns_sierra_data
> cdns_ti_map_sierra = {
> [EXTERNAL_SSC] = &pcie_phy_pcs_cmn_vals,
> [INTERNAL_SSC] = &pcie_phy_pcs_cmn_vals,
> },
> + [TYPE_SGMII] = {
> + [NO_SSC] = &pcie_phy_pcs_cmn_vals,
> + [EXTERNAL_SSC] = &pcie_phy_pcs_cmn_vals,
> + [INTERNAL_SSC] = &pcie_phy_pcs_cmn_vals,
> + },
> [TYPE_QSGMII] = {
> [NO_SSC] = &pcie_phy_pcs_cmn_vals,
> [EXTERNAL_SSC] = &pcie_phy_pcs_cmn_vals,
> @@ -2443,6 +2549,13 @@ static const struct cdns_sierra_data
> cdns_ti_map_sierra = {
> },
> },
> .phy_pma_ln_vals = {
> + [TYPE_SGMII] = {
> + [TYPE_PCIE] = {
> + [NO_SSC] = &sgmii_phy_pma_ln_vals,
> + [EXTERNAL_SSC] = &sgmii_phy_pma_ln_vals,
> + [INTERNAL_SSC] = &sgmii_phy_pma_ln_vals,
> + },
> + },
> [TYPE_QSGMII] = {
> [TYPE_PCIE] = {
> [NO_SSC] = &qsgmii_phy_pma_ln_vals,
> @@ -2458,6 +2571,11 @@ static const struct cdns_sierra_data
> cdns_ti_map_sierra = {
> [EXTERNAL_SSC] =
> &pcie_100_ext_ssc_cmn_vals,
> [INTERNAL_SSC] =
> &pcie_100_int_ssc_cmn_vals,
> },
> + [TYPE_SGMII] = {
> + [NO_SSC] =
> &pcie_100_no_ssc_plllc_cmn_vals,
> + [EXTERNAL_SSC] =
> &pcie_100_ext_ssc_plllc_cmn_vals,
> + [INTERNAL_SSC] =
> &pcie_100_int_ssc_plllc_cmn_vals,
> + },
> [TYPE_QSGMII] = {
> [NO_SSC] =
> &pcie_100_no_ssc_plllc_cmn_vals,
> [EXTERNAL_SSC] =
> &pcie_100_ext_ssc_plllc_cmn_vals,
> @@ -2469,6 +2587,13 @@ static const struct cdns_sierra_data
> cdns_ti_map_sierra = {
> [EXTERNAL_SSC] =
> &usb_100_ext_ssc_cmn_vals,
> },
> },
> + [TYPE_SGMII] = {
> + [TYPE_PCIE] = {
> + [NO_SSC] =
> &sgmii_100_no_ssc_plllc1_opt3_cmn_vals,
> + [EXTERNAL_SSC] =
> &sgmii_100_no_ssc_plllc1_opt3_cmn_vals,
> + [INTERNAL_SSC] =
> &sgmii_100_no_ssc_plllc1_opt3_cmn_vals,
> + },
> + },
> [TYPE_QSGMII] = {
> [TYPE_PCIE] = {
> [NO_SSC] =
> &qsgmii_100_no_ssc_plllc1_cmn_vals,
> @@ -2484,6 +2609,11 @@ static const struct cdns_sierra_data
> cdns_ti_map_sierra = {
> [EXTERNAL_SSC] = &pcie_100_ext_ssc_ln_vals,
> [INTERNAL_SSC] = &pcie_100_int_ssc_ln_vals,
> },
> + [TYPE_SGMII] = {
> + [NO_SSC] = &ti_ml_pcie_100_no_ssc_ln_vals,
> + [EXTERNAL_SSC] =
> &ti_ml_pcie_100_ext_ssc_ln_vals,
> + [INTERNAL_SSC] =
> &ti_ml_pcie_100_int_ssc_ln_vals,
> + },
> [TYPE_QSGMII] = {
> [NO_SSC] = &ti_ml_pcie_100_no_ssc_ln_vals,
> [EXTERNAL_SSC] =
> &ti_ml_pcie_100_ext_ssc_ln_vals,
> @@ -2495,6 +2625,13 @@ static const struct cdns_sierra_data
> cdns_ti_map_sierra = {
> [EXTERNAL_SSC] = &usb_100_ext_ssc_ln_vals,
> },
> },
> + [TYPE_SGMII] = {
> + [TYPE_PCIE] = {
> + [NO_SSC] =
> &sgmii_100_no_ssc_plllc1_opt3_ln_vals,
> + [EXTERNAL_SSC] =
> &sgmii_100_no_ssc_plllc1_opt3_ln_vals,
> + [INTERNAL_SSC] =
> &sgmii_100_no_ssc_plllc1_opt3_ln_vals,
> + },
> + },
> [TYPE_QSGMII] = {
> [TYPE_PCIE] = {
> [NO_SSC] =
> &qsgmii_100_no_ssc_plllc1_ln_vals,
> --
> 2.25.1
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