[PATCH v4] phy: cadence: Sierra: Add single link SGMII register configuration

From: Marcin Wierzbicki
Date: Mon Jun 26 2023 - 06:55:56 EST

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Add single link SGMII register configuration for no SSC for
cdns,sierra-phy-t0 compatibility string.
The configuration is based on Sierra Programmer's Guide and
validated in Cisco CrayAR SoC.

Co-developed-by: Bartosz Wawrzyniak <bwawrzyn@xxxxxxxxx>
Signed-off-by: Bartosz Wawrzyniak <bwawrzyn@xxxxxxxxx>
Signed-off-by: Marcin Wierzbicki <mawierzb@xxxxxxxxx>
---
v4
- moved TYPE_NONE under existing TYPE_SGMII entry,
- v3: https://lore.kernel.org/all/20230522172415.1668975-1-mawierzb@xxxxxxxxx/

v3
- removed Change-Id from commit msg,
- removed unnecessary new line,
- renamed sgmii_cmn_vals to sgmii_pma_cmn_vals,
- renamed sgmii_ln_vals to sgmii_pma_ln_vals.
- v2: https://lore.kernel.org/lkml/20230508160142.2489365-1-mawierzb@xxxxxxxxx/T/#u

v2
- rebased version on top of commit 0cfa43ab46b5 ("phy: cadence: Sierra: Add PCIe + SGMII PHY multilink configuration")
- v1: https://lore.kernel.org/lkml/20230419093008.195094-1-mawierzb@xxxxxxxxx/T/

v1
- initial version of single SGMII link support

Regards,
Marcin
---
---
drivers/phy/cadence/phy-cadence-sierra.c | 98 ++++++++++++++++++++++++
1 file changed, 98 insertions(+)

diff --git a/drivers/phy/cadence/phy-cadence-sierra.c b/drivers/phy/cadence/phy-cadence-sierra.c
index 13fcd3a65fe9..3c1f5ebe667b 100644
--- a/drivers/phy/cadence/phy-cadence-sierra.c
+++ b/drivers/phy/cadence/phy-cadence-sierra.c
@@ -30,23 +30,34 @@
#define SIERRA_COMMON_CDB_OFFSET 0x0
#define SIERRA_MACRO_ID_REG 0x0
#define SIERRA_CMN_PLLLC_GEN_PREG 0x42
+#define SIERRA_CMN_PLLLC_FBDIV_INT_MODE0_PREG 0x43
+#define SIERRA_CMN_PLLLC_DCOCAL_CTRL_PREG 0x45
+#define SIERRA_CMN_PLLLC_INIT_PREG 0x46
+#define SIERRA_CMN_PLLLC_ITERTMR_PREG 0x47
#define SIERRA_CMN_PLLLC_MODE_PREG 0x48
#define SIERRA_CMN_PLLLC_LF_COEFF_MODE1_PREG 0x49
#define SIERRA_CMN_PLLLC_LF_COEFF_MODE0_PREG 0x4A
#define SIERRA_CMN_PLLLC_LOCK_CNTSTART_PREG 0x4B
+#define SIERRA_CMN_PLLLC_LOCKSEARCH_PREG 0x4C
#define SIERRA_CMN_PLLLC_CLK1_PREG 0x4D
+#define SIERRA_CMN_PLLLC_CLK0_PREG 0x4E
#define SIERRA_CMN_PLLLC_BWCAL_MODE1_PREG 0x4F
#define SIERRA_CMN_PLLLC_BWCAL_MODE0_PREG 0x50
#define SIERRA_CMN_PLLLC_DSMCORR_PREG 0x51
#define SIERRA_CMN_PLLLC_SS_PREG 0x52
#define SIERRA_CMN_PLLLC_SS_AMP_STEP_SIZE_PREG 0x53
#define SIERRA_CMN_PLLLC_SSTWOPT_PREG 0x54
+#define SIERRA_CMN_PLLCSM_PLLEN_TMR_PREG 0x5D
+#define SIERRA_CMN_PLLCSM_PLLPRE_TMR_PREG 0x5E
#define SIERRA_CMN_PLLLC_SS_TIME_STEPSIZE_MODE_PREG 0x62
#define SIERRA_CMN_PLLLC_LOCK_DELAY_CTRL_PREG 0x63
+#define SIERRA_SDOSCCAL_CLK_CNT_PREG 0x6E
#define SIERRA_CMN_REFRCV_PREG 0x98
+#define SIERRA_CMN_RESCAL_CTRLA_PREG 0xA0
#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_DCOCAL_CTRL_PREG 0xC5
#define SIERRA_CMN_PLLLC1_LF_COEFF_MODE0_PREG 0xCA
#define SIERRA_CMN_PLLLC1_CLK0_PREG 0xCE
#define SIERRA_CMN_PLLLC1_BWCAL_MODE0_PREG 0xD0
@@ -86,6 +97,7 @@
#define SIERRA_DFE_BIASTRIM_PREG 0x04C
#define SIERRA_DRVCTRL_ATTEN_PREG 0x06A
#define SIERRA_DRVCTRL_BOOST_PREG 0x06F
+#define SIERRA_LANE_TX_RECEIVER_DETECT_PREG 0x071
#define SIERRA_TX_RCVDET_OVRD_PREG 0x072
#define SIERRA_CLKPATHCTRL_TMR_PREG 0x081
#define SIERRA_RX_CREQ_FLTR_A_MODE3_PREG 0x085
@@ -101,6 +113,8 @@
#define SIERRA_CREQ_SPARE_PREG 0x096
#define SIERRA_CREQ_EQ_OPEN_EYE_THRESH_PREG 0x097
#define SIERRA_CTLELUT_CTRL_PREG 0x098
+#define SIERRA_DEQ_BLK_TAU_CTRL1_PREG 0x0AC
+#define SIERRA_DEQ_BLK_TAU_CTRL4_PREG 0x0AF
#define SIERRA_DFE_ECMP_RATESEL_PREG 0x0C0
#define SIERRA_DFE_SMP_RATESEL_PREG 0x0C1
#define SIERRA_DEQ_PHALIGN_CTRL 0x0C4
@@ -129,6 +143,9 @@
#define SIERRA_DEQ_GLUT14 0x0F6
#define SIERRA_DEQ_GLUT15 0x0F7
#define SIERRA_DEQ_GLUT16 0x0F8
+#define SIERRA_POSTPRECUR_EN_CEPH_CTRL_PREG 0x0F9
+#define SIERRA_TAU_EN_CEPH2TO0_PREG 0x0FB
+#define SIERRA_TAU_EN_CEPH5TO3_PREG 0x0FC
#define SIERRA_DEQ_ALUT0 0x108
#define SIERRA_DEQ_ALUT1 0x109
#define SIERRA_DEQ_ALUT2 0x10A
@@ -143,6 +160,7 @@
#define SIERRA_DEQ_ALUT11 0x113
#define SIERRA_DEQ_ALUT12 0x114
#define SIERRA_DEQ_ALUT13 0x115
+#define SIERRA_OEPH_EN_CTRL_PREG 0x124
#define SIERRA_DEQ_DFETAP_CTRL_PREG 0x128
#define SIERRA_DEQ_DFETAP0 0x129
#define SIERRA_DEQ_DFETAP1 0x12B
@@ -157,6 +175,7 @@
#define SIERRA_DEQ_TAU_CTRL2_PREG 0x151
#define SIERRA_DEQ_TAU_CTRL3_PREG 0x152
#define SIERRA_DEQ_OPENEYE_CTRL_PREG 0x158
+#define SIERRA_DEQ_CONCUR_EPIOFFSET_MODE_PREG 0x159
#define SIERRA_DEQ_PICTRL_PREG 0x161
#define SIERRA_CPICAL_TMRVAL_MODE1_PREG 0x170
#define SIERRA_CPICAL_TMRVAL_MODE0_PREG 0x171
@@ -165,6 +184,7 @@
#define SIERRA_CPI_RESBIAS_BIN_PREG 0x17E
#define SIERRA_CPI_TRIM_PREG 0x17F
#define SIERRA_CPICAL_RES_STARTCODE_MODE23_PREG 0x183
+#define SIERRA_CPICAL_RES_STARTCODE_MODE01_PREG 0x184
#define SIERRA_EPI_CTRL_PREG 0x187
#define SIERRA_LFPSDET_SUPPORT_PREG 0x188
#define SIERRA_LFPSFILT_NS_PREG 0x18A
@@ -176,6 +196,7 @@
#define SIERRA_RXBUFFER_CTLECTRL_PREG 0x19E
#define SIERRA_RXBUFFER_RCDFECTRL_PREG 0x19F
#define SIERRA_RXBUFFER_DFECTRL_PREG 0x1A0
+#define SIERRA_LN_SPARE_REG_PREG 0x1B0
#define SIERRA_DEQ_TAU_CTRL1_FAST_MAINT_PREG 0x14F
#define SIERRA_DEQ_TAU_CTRL1_SLOW_MAINT_PREG 0x150

@@ -2401,6 +2422,77 @@ static struct cdns_sierra_vals usb_100_ext_ssc_ln_vals = {
.num_regs = ARRAY_SIZE(cdns_usb_ln_regs_ext_ssc),
};

+/* SGMII PHY common configuration */
+static const struct cdns_reg_pairs sgmii_pma_cmn_vals[] = {
+ {0x0180, SIERRA_SDOSCCAL_CLK_CNT_PREG},
+ {0x6000, SIERRA_CMN_REFRCV_PREG},
+ {0x0031, SIERRA_CMN_RESCAL_CTRLA_PREG},
+ {0x001C, SIERRA_CMN_PLLLC_FBDIV_INT_MODE0_PREG},
+ {0x2106, SIERRA_CMN_PLLLC_LF_COEFF_MODE0_PREG},
+ {0x0000, SIERRA_CMN_PLLLC_LOCKSEARCH_PREG},
+ {0x8103, SIERRA_CMN_PLLLC_CLK0_PREG},
+ {0x0000, SIERRA_CMN_PLLLC_BWCAL_MODE0_PREG},
+ {0x0027, SIERRA_CMN_PLLCSM_PLLEN_TMR_PREG},
+ {0x0062, SIERRA_CMN_PLLCSM_PLLPRE_TMR_PREG},
+ {0x0800, SIERRA_CMN_PLLLC_SS_TIME_STEPSIZE_MODE_PREG},
+ {0x0000, SIERRA_CMN_PLLLC_INIT_PREG},
+ {0x0000, SIERRA_CMN_PLLLC_ITERTMR_PREG},
+ {0x0020, SIERRA_CMN_PLLLC_LOCK_CNTSTART_PREG},
+ {0x0013, SIERRA_CMN_PLLLC_DCOCAL_CTRL_PREG},
+ {0x0013, SIERRA_CMN_PLLLC1_DCOCAL_CTRL_PREG},
+};
+
+static struct cdns_sierra_vals sgmii_cmn_vals = {
+ .reg_pairs = sgmii_pma_cmn_vals,
+ .num_regs = ARRAY_SIZE(sgmii_pma_cmn_vals),
+};
+
+/* SGMII PHY lane configuration */
+static const struct cdns_reg_pairs sgmii_ln_regs[] = {
+ {0x691E, SIERRA_DET_STANDEC_D_PREG},
+ {0x0FFE, SIERRA_PSC_RX_A0_PREG},
+ {0x0104, SIERRA_PLLCTRL_FBDIV_MODE01_PREG},
+ {0x0013, SIERRA_PLLCTRL_SUBRATE_PREG},
+ {0x0106, SIERRA_PLLCTRL_GEN_D_PREG},
+ {0x5234, SIERRA_PLLCTRL_CPGAIN_MODE_PREG},
+ {0x0000, SIERRA_DRVCTRL_ATTEN_PREG},
+ {0x00AB, 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},
+ {0x6320, SIERRA_DEQ_CONCUR_EPIOFFSET_MODE_PREG},
+ {0x0000, SIERRA_CPI_OUTBUF_RATESEL_PREG},
+ {0x15A2, SIERRA_LN_SPARE_REG_PREG},
+ {0x7900, SIERRA_DEQ_BLK_TAU_CTRL1_PREG},
+ {0x2202, SIERRA_DEQ_BLK_TAU_CTRL4_PREG},
+ {0x2206, SIERRA_DEQ_TAU_CTRL2_PREG},
+ {0x0005, SIERRA_LANE_TX_RECEIVER_DETECT_PREG},
+ {0x8001, SIERRA_CREQ_SPARE_PREG},
+ {0x0000, SIERRA_DEQ_CONCUR_CTRL1_PREG},
+ {0xD004, SIERRA_DEQ_CONCUR_CTRL2_PREG},
+ {0x0101, SIERRA_DEQ_GLUT9},
+ {0x0101, SIERRA_DEQ_GLUT10},
+ {0x0101, SIERRA_DEQ_GLUT11},
+ {0x0101, SIERRA_DEQ_GLUT12},
+ {0x0000, SIERRA_DEQ_GLUT13},
+ {0x0000, SIERRA_DEQ_GLUT16},
+ {0x0000, SIERRA_POSTPRECUR_EN_CEPH_CTRL_PREG},
+ {0x0000, SIERRA_TAU_EN_CEPH2TO0_PREG},
+ {0x0003, SIERRA_TAU_EN_CEPH5TO3_PREG},
+ {0x0101, SIERRA_DEQ_ALUT8},
+ {0x0101, SIERRA_DEQ_ALUT9},
+ {0x0100, SIERRA_DEQ_ALUT10},
+ {0x0000, SIERRA_OEPH_EN_CTRL_PREG},
+ {0x5425, SIERRA_DEQ_OPENEYE_CTRL_PREG},
+ {0x7458, SIERRA_CPICAL_RES_STARTCODE_MODE23_PREG},
+ {0x321F, SIERRA_CPICAL_RES_STARTCODE_MODE01_PREG},
+};
+
+static struct cdns_sierra_vals sgmii_pma_ln_vals = {
+ .reg_pairs = sgmii_ln_regs,
+ .num_regs = ARRAY_SIZE(sgmii_ln_regs),
+};
+
static const struct cdns_sierra_data cdns_map_sierra = {
.id_value = SIERRA_MACRO_ID,
.block_offset_shift = 0x2,
@@ -2448,6 +2540,9 @@ static const struct cdns_sierra_data cdns_map_sierra = {
},
},
[TYPE_SGMII] = {
+ [TYPE_NONE] = {
+ [NO_SSC] = &sgmii_cmn_vals,
+ },
[TYPE_PCIE] = {
[NO_SSC] = &sgmii_100_no_ssc_plllc1_opt3_cmn_vals,
[EXTERNAL_SSC] = &sgmii_100_no_ssc_plllc1_opt3_cmn_vals,
@@ -2486,6 +2581,9 @@ static const struct cdns_sierra_data cdns_map_sierra = {
},
},
[TYPE_SGMII] = {
+ [TYPE_NONE] = {
+ [NO_SSC] = &sgmii_pma_ln_vals,
+ },
[TYPE_PCIE] = {
[NO_SSC] = &sgmii_100_no_ssc_plllc1_opt3_ln_vals,
[EXTERNAL_SSC] = &sgmii_100_no_ssc_plllc1_opt3_ln_vals,
--
2.28.0

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