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phy: cadence-torrent: Add single link USXGMII configuration for 156.25MHz refclk 

Add register sequences for single link USXGMII configuration supporting
156.25MHz reference clock frequency.

Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Link: https://lore.kernel.org/r/20230530143853.26571-2-sjakhade@cadence.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Swapnil Jakhade 2023-05-30 16:38:52 +02:00 committed by Vinod Koul
parent d746f127ea
commit 16e0f0ea7f
1 changed files with 228 additions and 5 deletions
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233
drivers/phy/cadence/phy-cadence-torrent.c
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@ -27,13 +27,14 @@
#define REF_CLK_19_2MHZ 19200000
#define REF_CLK_25MHZ 25000000
#define REF_CLK_100MHZ 100000000
#define REF_CLK_156_25MHZ 156250000
#define MAX_NUM_LANES 4
#define DEFAULT_MAX_BIT_RATE 8100 /* in Mbps */
#define NUM_SSC_MODE 3
#define NUM_REF_CLK 3
#define NUM_PHY_TYPE 6
#define NUM_REF_CLK 4
#define NUM_PHY_TYPE 7
#define POLL_TIMEOUT_US 5000
#define PLL_LOCK_TIMEOUT 100000
@ -106,6 +107,7 @@
#define CMN_PLL0_HIGH_THR_M0 0x0093U
#define CMN_PLL0_DSM_DIAG_M0 0x0094U
#define CMN_PLL0_DSM_FBH_OVRD_M0 0x0095U
#define CMN_PLL0_DSM_FBL_OVRD_M0 0x0096U
#define CMN_PLL0_SS_CTRL1_M0 0x0098U
#define CMN_PLL0_SS_CTRL2_M0 0x0099U
#define CMN_PLL0_SS_CTRL3_M0 0x009AU
@ -196,6 +198,10 @@
#define RX_PSC_A2 0x0002U
#define RX_PSC_A3 0x0003U
#define RX_PSC_CAL 0x0006U
#define RX_SDCAL0_INIT_TMR 0x0044U
#define RX_SDCAL0_ITER_TMR 0x0045U
#define RX_SDCAL1_INIT_TMR 0x004CU
#define RX_SDCAL1_ITER_TMR 0x004DU
#define RX_CDRLF_CNFG 0x0080U
#define RX_CDRLF_CNFG3 0x0082U
#define RX_SIGDET_HL_FILT_TMR 0x0090U
@ -294,12 +300,14 @@ enum cdns_torrent_phy_type {
TYPE_SGMII,
TYPE_QSGMII,
TYPE_USB,
TYPE_USXGMII,
};
enum cdns_torrent_ref_clk {
CLK_19_2_MHZ,
CLK_25_MHZ,
CLK_100_MHZ
CLK_100_MHZ,
CLK_156_25_MHZ
};
enum cdns_torrent_ssc_mode {
@ -403,6 +411,8 @@ struct cdns_torrent_data {
[NUM_SSC_MODE];
struct cdns_torrent_vals *pcs_cmn_vals[NUM_PHY_TYPE][NUM_PHY_TYPE]
[NUM_SSC_MODE];
struct cdns_torrent_vals *phy_pma_cmn_vals[NUM_PHY_TYPE][NUM_PHY_TYPE]
[NUM_SSC_MODE];
struct cdns_torrent_vals *cmn_vals[NUM_REF_CLK][NUM_PHY_TYPE]
[NUM_PHY_TYPE][NUM_SSC_MODE];
struct cdns_torrent_vals *tx_ln_vals[NUM_REF_CLK][NUM_PHY_TYPE]
@ -644,6 +654,8 @@ static const char *cdns_torrent_get_phy_type(enum cdns_torrent_phy_type phy_type
return "QSGMII";
case TYPE_USB:
return "USB";
case TYPE_USXGMII:
return "USXGMII";
default:
return "None";
}
@ -2244,6 +2256,7 @@ static int cdns_torrent_phy_init(struct phy *phy)
struct cdns_torrent_inst *inst = phy_get_drvdata(phy);
enum cdns_torrent_phy_type phy_type = inst->phy_type;
enum cdns_torrent_ssc_mode ssc = inst->ssc_mode;
struct cdns_torrent_vals *phy_pma_cmn_vals;
struct cdns_torrent_vals *pcs_cmn_vals;
struct cdns_reg_pairs *reg_pairs;
struct regmap *regmap;
@ -2258,9 +2271,9 @@ static int cdns_torrent_phy_init(struct phy *phy)
/**
* Spread spectrum generation is not required or supported
* for SGMII/QSGMII
* for SGMII/QSGMII/USXGMII
*/
if (phy_type == TYPE_SGMII || phy_type == TYPE_QSGMII)
if (phy_type == TYPE_SGMII || phy_type == TYPE_QSGMII || phy_type == TYPE_USXGMII)
ssc = NO_SSC;
/* PHY configuration specific registers for single link */
@ -2304,6 +2317,17 @@ static int cdns_torrent_phy_init(struct phy *phy)
reg_pairs[i].val);
}
/* PHY PMA common registers configurations */
phy_pma_cmn_vals = init_data->phy_pma_cmn_vals[phy_type][TYPE_NONE][ssc];
if (phy_pma_cmn_vals) {
reg_pairs = phy_pma_cmn_vals->reg_pairs;
num_regs = phy_pma_cmn_vals->num_regs;
regmap = cdns_phy->regmap_phy_pma_common_cdb;
for (i = 0; i < num_regs; i++)
regmap_write(regmap, reg_pairs[i].off,
reg_pairs[i].val);
}
/* PMA common registers configurations */
cmn_vals = init_data->cmn_vals[ref_clk][phy_type][TYPE_NONE][ssc];
if (cmn_vals) {
@ -2617,6 +2641,9 @@ static int cdns_torrent_clk(struct cdns_torrent_phy *cdns_phy)
case REF_CLK_100MHZ:
cdns_phy->ref_clk_rate = CLK_100_MHZ;
break;
case REF_CLK_156_25MHZ:
cdns_phy->ref_clk_rate = CLK_156_25_MHZ;
break;
default:
dev_err(cdns_phy->dev, "Invalid Ref Clock Rate\n");
clk_disable_unprepare(cdns_phy->clk);
@ -2736,6 +2763,9 @@ static int cdns_torrent_phy_probe(struct platform_device *pdev)
case PHY_TYPE_USB3:
cdns_phy->phys[node].phy_type = TYPE_USB;
break;
case PHY_TYPE_USXGMII:
cdns_phy->phys[node].phy_type = TYPE_USXGMII;
break;
default:
dev_err(dev, "Unsupported protocol\n");
ret = -EINVAL;
@ -2929,6 +2959,123 @@ static struct cdns_torrent_vals dp_usb_xcvr_diag_ln_vals = {
.num_regs = ARRAY_SIZE(dp_usb_xcvr_diag_ln_regs),
};
/* TI USXGMII configuration: Enable cmn_refclk_rcv_out_en */
static struct cdns_reg_pairs ti_usxgmii_phy_pma_cmn_regs[] = {
{0x0040, PHY_PMA_CMN_CTRL1},
};
static struct cdns_torrent_vals ti_usxgmii_phy_pma_cmn_vals = {
.reg_pairs = ti_usxgmii_phy_pma_cmn_regs,
.num_regs = ARRAY_SIZE(ti_usxgmii_phy_pma_cmn_regs),
};
/* Single USXGMII link configuration */
static struct cdns_reg_pairs sl_usxgmii_link_cmn_regs[] = {
{0x0000, PHY_PLL_CFG},
{0x0400, CMN_PDIAG_PLL0_CLK_SEL_M0}
};
static struct cdns_reg_pairs sl_usxgmii_xcvr_diag_ln_regs[] = {
{0x0000, XCVR_DIAG_HSCLK_SEL},
{0x0001, XCVR_DIAG_HSCLK_DIV},
{0x0001, XCVR_DIAG_PLLDRC_CTRL}
};
static struct cdns_torrent_vals sl_usxgmii_link_cmn_vals = {
.reg_pairs = sl_usxgmii_link_cmn_regs,
.num_regs = ARRAY_SIZE(sl_usxgmii_link_cmn_regs),
};
static struct cdns_torrent_vals sl_usxgmii_xcvr_diag_ln_vals = {
.reg_pairs = sl_usxgmii_xcvr_diag_ln_regs,
.num_regs = ARRAY_SIZE(sl_usxgmii_xcvr_diag_ln_regs),
};
/* Single link USXGMII, 156.25 MHz Ref clk, no SSC */
static struct cdns_reg_pairs sl_usxgmii_156_25_no_ssc_cmn_regs[] = {
{0x0014, CMN_SSM_BIAS_TMR},
{0x0028, CMN_PLLSM0_PLLPRE_TMR},
{0x00A4, CMN_PLLSM0_PLLLOCK_TMR},
{0x0028, CMN_PLLSM1_PLLPRE_TMR},
{0x00A4, CMN_PLLSM1_PLLLOCK_TMR},
{0x0062, CMN_BGCAL_INIT_TMR},
{0x0062, CMN_BGCAL_ITER_TMR},
{0x0014, CMN_IBCAL_INIT_TMR},
{0x0018, CMN_TXPUCAL_INIT_TMR},
{0x0005, CMN_TXPUCAL_ITER_TMR},
{0x0018, CMN_TXPDCAL_INIT_TMR},
{0x0005, CMN_TXPDCAL_ITER_TMR},
{0x024A, CMN_RXCAL_INIT_TMR},
{0x0005, CMN_RXCAL_ITER_TMR},
{0x000B, CMN_SD_CAL_REFTIM_START},
{0x0132, CMN_SD_CAL_PLLCNT_START},
{0x0028, CMN_PDIAG_PLL1_CP_PADJ_M0},
{0x0014, CMN_PLL0_DSM_FBH_OVRD_M0},
{0x0014, CMN_PLL1_DSM_FBH_OVRD_M0},
{0x0005, CMN_PLL0_DSM_FBL_OVRD_M0},
{0x0005, CMN_PLL1_DSM_FBL_OVRD_M0},
{0x061B, CMN_PLL0_VCOCAL_INIT_TMR},
{0x061B, CMN_PLL1_VCOCAL_INIT_TMR},
{0x0019, CMN_PLL0_VCOCAL_ITER_TMR},
{0x0019, CMN_PLL1_VCOCAL_ITER_TMR},
{0x1354, CMN_PLL0_VCOCAL_REFTIM_START},
{0x1354, CMN_PLL1_VCOCAL_REFTIM_START},
{0x1354, CMN_PLL0_VCOCAL_PLLCNT_START},
{0x1354, CMN_PLL1_VCOCAL_PLLCNT_START},
{0x0003, CMN_PLL0_VCOCAL_TCTRL},
{0x0003, CMN_PLL1_VCOCAL_TCTRL},
{0x0138, CMN_PLL0_LOCK_REFCNT_START},
{0x0138, CMN_PLL1_LOCK_REFCNT_START},
{0x0138, CMN_PLL0_LOCK_PLLCNT_START},
{0x0138, CMN_PLL1_LOCK_PLLCNT_START}
};
static struct cdns_reg_pairs usxgmii_156_25_no_ssc_tx_ln_regs[] = {
{0x07A2, TX_RCVDET_ST_TMR},
{0x00F3, TX_PSC_A0},
{0x04A2, TX_PSC_A2},
{0x04A2, TX_PSC_A3},
{0x0000, TX_TXCC_CPOST_MULT_00},
{0x0000, XCVR_DIAG_PSC_OVRD}
};
static struct cdns_reg_pairs usxgmii_156_25_no_ssc_rx_ln_regs[] = {
{0x0014, RX_SDCAL0_INIT_TMR},
{0x0062, RX_SDCAL0_ITER_TMR},
{0x0014, RX_SDCAL1_INIT_TMR},
{0x0062, RX_SDCAL1_ITER_TMR},
{0x091D, RX_PSC_A0},
{0x0900, RX_PSC_A2},
{0x0100, RX_PSC_A3},
{0x0030, RX_REE_SMGM_CTRL1},
{0x03C7, RX_REE_GCSM1_EQENM_PH1},
{0x01C7, RX_REE_GCSM1_EQENM_PH2},
{0x0000, RX_DIAG_DFE_CTRL},
{0x0019, RX_REE_TAP1_CLIP},
{0x0019, RX_REE_TAP2TON_CLIP},
{0x00B9, RX_DIAG_NQST_CTRL},
{0x0C21, RX_DIAG_DFE_AMP_TUNE_2},
{0x0002, RX_DIAG_DFE_AMP_TUNE_3},
{0x0033, RX_DIAG_PI_RATE},
{0x0001, RX_DIAG_ACYA},
{0x018C, RX_CDRLF_CNFG}
};
static struct cdns_torrent_vals sl_usxgmii_156_25_no_ssc_cmn_vals = {
.reg_pairs = sl_usxgmii_156_25_no_ssc_cmn_regs,
.num_regs = ARRAY_SIZE(sl_usxgmii_156_25_no_ssc_cmn_regs),
};
static struct cdns_torrent_vals usxgmii_156_25_no_ssc_tx_ln_vals = {
.reg_pairs = usxgmii_156_25_no_ssc_tx_ln_regs,
.num_regs = ARRAY_SIZE(usxgmii_156_25_no_ssc_tx_ln_regs),
};
static struct cdns_torrent_vals usxgmii_156_25_no_ssc_rx_ln_vals = {
.reg_pairs = usxgmii_156_25_no_ssc_rx_ln_regs,
.num_regs = ARRAY_SIZE(usxgmii_156_25_no_ssc_rx_ln_regs),
};
/* PCIe and DP link configuration */
static struct cdns_reg_pairs pcie_dp_link_cmn_regs[] = {
{0x0003, PHY_PLL_CFG},
@ -4029,6 +4176,11 @@ static const struct cdns_torrent_data cdns_map_torrent = {
[NO_SSC] = &usb_dp_link_cmn_vals,
},
},
[TYPE_USXGMII] = {
[TYPE_NONE] = {
[NO_SSC] = &sl_usxgmii_link_cmn_vals,
},
},
},
.xcvr_diag_vals = {
[TYPE_DP] = {
@ -4122,6 +4274,11 @@ static const struct cdns_torrent_data cdns_map_torrent = {
[NO_SSC] = &usb_dp_xcvr_diag_ln_vals,
},
},
[TYPE_USXGMII] = {
[TYPE_NONE] = {
[NO_SSC] = &sl_usxgmii_xcvr_diag_ln_vals,
},
},
},
.pcs_cmn_vals = {
[TYPE_USB] = {
@ -4150,6 +4307,13 @@ static const struct cdns_torrent_data cdns_map_torrent = {
},
},
},
.phy_pma_cmn_vals = {
[TYPE_USXGMII] = {
[TYPE_NONE] = {
[NO_SSC] = NULL,
},
},
},
.cmn_vals = {
[CLK_19_2_MHZ] = {
[TYPE_DP] = {
@ -4258,6 +4422,13 @@ static const struct cdns_torrent_data cdns_map_torrent = {
},
},
},
[CLK_156_25_MHZ] = {
[TYPE_USXGMII] = {
[TYPE_NONE] = {
[NO_SSC] = &sl_usxgmii_156_25_no_ssc_cmn_vals,
},
},
},
},
.tx_ln_vals = {
[CLK_19_2_MHZ] = {
@ -4367,6 +4538,13 @@ static const struct cdns_torrent_data cdns_map_torrent = {
},
},
},
[CLK_156_25_MHZ] = {
[TYPE_USXGMII] = {
[TYPE_NONE] = {
[NO_SSC] = &usxgmii_156_25_no_ssc_tx_ln_vals,
},
},
},
},
.rx_ln_vals = {
[CLK_19_2_MHZ] = {
@ -4476,6 +4654,13 @@ static const struct cdns_torrent_data cdns_map_torrent = {
},
},
},
[CLK_156_25_MHZ] = {
[TYPE_USXGMII] = {
[TYPE_NONE] = {
[NO_SSC] = &usxgmii_156_25_no_ssc_rx_ln_vals,
},
},
},
},
};
@ -4574,6 +4759,11 @@ static const struct cdns_torrent_data ti_j721e_map_torrent = {
[NO_SSC] = &usb_dp_link_cmn_vals,
},
},
[TYPE_USXGMII] = {
[TYPE_NONE] = {
[NO_SSC] = &sl_usxgmii_link_cmn_vals,
},
},
},
.xcvr_diag_vals = {
[TYPE_DP] = {
@ -4667,6 +4857,11 @@ static const struct cdns_torrent_data ti_j721e_map_torrent = {
[NO_SSC] = &usb_dp_xcvr_diag_ln_vals,
},
},
[TYPE_USXGMII] = {
[TYPE_NONE] = {
[NO_SSC] = &sl_usxgmii_xcvr_diag_ln_vals,
},
},
},
.pcs_cmn_vals = {
[TYPE_USB] = {
@ -4695,6 +4890,13 @@ static const struct cdns_torrent_data ti_j721e_map_torrent = {
},
},
},
.phy_pma_cmn_vals = {
[TYPE_USXGMII] = {
[TYPE_NONE] = {
[NO_SSC] = &ti_usxgmii_phy_pma_cmn_vals,
},
},
},
.cmn_vals = {
[CLK_19_2_MHZ] = {
[TYPE_DP] = {
@ -4803,6 +5005,13 @@ static const struct cdns_torrent_data ti_j721e_map_torrent = {
},
},
},
[CLK_156_25_MHZ] = {
[TYPE_USXGMII] = {
[TYPE_NONE] = {
[NO_SSC] = &sl_usxgmii_156_25_no_ssc_cmn_vals,
},
},
},
},
.tx_ln_vals = {
[CLK_19_2_MHZ] = {
@ -4912,6 +5121,13 @@ static const struct cdns_torrent_data ti_j721e_map_torrent = {
},
},
},
[CLK_156_25_MHZ] = {
[TYPE_USXGMII] = {
[TYPE_NONE] = {
[NO_SSC] = &usxgmii_156_25_no_ssc_tx_ln_vals,
},
},
},
},
.rx_ln_vals = {
[CLK_19_2_MHZ] = {
@ -5021,6 +5237,13 @@ static const struct cdns_torrent_data ti_j721e_map_torrent = {
},
},
},
[CLK_156_25_MHZ] = {
[TYPE_USXGMII] = {
[TYPE_NONE] = {
[NO_SSC] = &usxgmii_156_25_no_ssc_rx_ln_vals,
},
},
},
},
};