mirror of https://gitee.com/openkylin/linux.git
838 lines
24 KiB
C
838 lines
24 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Cadence Sierra PHY Driver
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*
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* Copyright (c) 2018 Cadence Design Systems
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* Author: Alan Douglas <adouglas@cadence.com>
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*
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*/
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#include <linux/clk.h>
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#include <linux/delay.h>
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#include <linux/err.h>
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#include <linux/io.h>
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#include <linux/module.h>
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#include <linux/phy/phy.h>
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#include <linux/platform_device.h>
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#include <linux/pm_runtime.h>
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#include <linux/regmap.h>
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#include <linux/reset.h>
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#include <linux/slab.h>
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#include <linux/of.h>
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#include <linux/of_platform.h>
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#include <dt-bindings/phy/phy.h>
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/* PHY register offsets */
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#define SIERRA_COMMON_CDB_OFFSET 0x0
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#define SIERRA_MACRO_ID_REG 0x0
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#define SIERRA_CMN_PLLLC_MODE_PREG 0x48
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#define SIERRA_CMN_PLLLC_LF_COEFF_MODE1_PREG 0x49
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#define SIERRA_CMN_PLLLC_LF_COEFF_MODE0_PREG 0x4A
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#define SIERRA_CMN_PLLLC_LOCK_CNTSTART_PREG 0x4B
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#define SIERRA_CMN_PLLLC_BWCAL_MODE1_PREG 0x4F
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#define SIERRA_CMN_PLLLC_BWCAL_MODE0_PREG 0x50
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#define SIERRA_CMN_PLLLC_SS_TIME_STEPSIZE_MODE_PREG 0x62
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#define SIERRA_LANE_CDB_OFFSET(ln, block_offset, reg_offset) \
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((0x4000 << (block_offset)) + \
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(((ln) << 9) << (reg_offset)))
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#define SIERRA_DET_STANDEC_A_PREG 0x000
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#define SIERRA_DET_STANDEC_B_PREG 0x001
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#define SIERRA_DET_STANDEC_C_PREG 0x002
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#define SIERRA_DET_STANDEC_D_PREG 0x003
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#define SIERRA_DET_STANDEC_E_PREG 0x004
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#define SIERRA_PSM_LANECAL_DLY_A1_RESETS_PREG 0x008
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#define SIERRA_PSM_A0IN_TMR_PREG 0x009
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#define SIERRA_PSM_DIAG_PREG 0x015
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#define SIERRA_PSC_TX_A0_PREG 0x028
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#define SIERRA_PSC_TX_A1_PREG 0x029
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#define SIERRA_PSC_TX_A2_PREG 0x02A
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#define SIERRA_PSC_TX_A3_PREG 0x02B
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#define SIERRA_PSC_RX_A0_PREG 0x030
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#define SIERRA_PSC_RX_A1_PREG 0x031
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#define SIERRA_PSC_RX_A2_PREG 0x032
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#define SIERRA_PSC_RX_A3_PREG 0x033
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#define SIERRA_PLLCTRL_SUBRATE_PREG 0x03A
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#define SIERRA_PLLCTRL_GEN_D_PREG 0x03E
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#define SIERRA_PLLCTRL_CPGAIN_MODE_PREG 0x03F
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#define SIERRA_PLLCTRL_STATUS_PREG 0x044
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#define SIERRA_CLKPATH_BIASTRIM_PREG 0x04B
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#define SIERRA_DFE_BIASTRIM_PREG 0x04C
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#define SIERRA_DRVCTRL_ATTEN_PREG 0x06A
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#define SIERRA_CLKPATHCTRL_TMR_PREG 0x081
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#define SIERRA_RX_CREQ_FLTR_A_MODE3_PREG 0x085
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#define SIERRA_RX_CREQ_FLTR_A_MODE2_PREG 0x086
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#define SIERRA_RX_CREQ_FLTR_A_MODE1_PREG 0x087
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#define SIERRA_RX_CREQ_FLTR_A_MODE0_PREG 0x088
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#define SIERRA_CREQ_CCLKDET_MODE01_PREG 0x08E
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#define SIERRA_RX_CTLE_MAINTENANCE_PREG 0x091
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#define SIERRA_CREQ_FSMCLK_SEL_PREG 0x092
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#define SIERRA_CREQ_EQ_CTRL_PREG 0x093
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#define SIERRA_CREQ_SPARE_PREG 0x096
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#define SIERRA_CREQ_EQ_OPEN_EYE_THRESH_PREG 0x097
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#define SIERRA_CTLELUT_CTRL_PREG 0x098
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#define SIERRA_DFE_ECMP_RATESEL_PREG 0x0C0
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#define SIERRA_DFE_SMP_RATESEL_PREG 0x0C1
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#define SIERRA_DEQ_PHALIGN_CTRL 0x0C4
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#define SIERRA_DEQ_CONCUR_CTRL1_PREG 0x0C8
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#define SIERRA_DEQ_CONCUR_CTRL2_PREG 0x0C9
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#define SIERRA_DEQ_EPIPWR_CTRL2_PREG 0x0CD
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#define SIERRA_DEQ_FAST_MAINT_CYCLES_PREG 0x0CE
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#define SIERRA_DEQ_ERRCMP_CTRL_PREG 0x0D0
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#define SIERRA_DEQ_OFFSET_CTRL_PREG 0x0D8
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#define SIERRA_DEQ_GAIN_CTRL_PREG 0x0E0
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#define SIERRA_DEQ_VGATUNE_CTRL_PREG 0x0E1
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#define SIERRA_DEQ_GLUT0 0x0E8
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#define SIERRA_DEQ_GLUT1 0x0E9
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#define SIERRA_DEQ_GLUT2 0x0EA
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#define SIERRA_DEQ_GLUT3 0x0EB
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#define SIERRA_DEQ_GLUT4 0x0EC
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#define SIERRA_DEQ_GLUT5 0x0ED
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#define SIERRA_DEQ_GLUT6 0x0EE
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#define SIERRA_DEQ_GLUT7 0x0EF
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#define SIERRA_DEQ_GLUT8 0x0F0
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#define SIERRA_DEQ_GLUT9 0x0F1
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#define SIERRA_DEQ_GLUT10 0x0F2
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#define SIERRA_DEQ_GLUT11 0x0F3
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#define SIERRA_DEQ_GLUT12 0x0F4
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#define SIERRA_DEQ_GLUT13 0x0F5
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#define SIERRA_DEQ_GLUT14 0x0F6
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#define SIERRA_DEQ_GLUT15 0x0F7
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#define SIERRA_DEQ_GLUT16 0x0F8
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#define SIERRA_DEQ_ALUT0 0x108
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#define SIERRA_DEQ_ALUT1 0x109
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#define SIERRA_DEQ_ALUT2 0x10A
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#define SIERRA_DEQ_ALUT3 0x10B
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#define SIERRA_DEQ_ALUT4 0x10C
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#define SIERRA_DEQ_ALUT5 0x10D
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#define SIERRA_DEQ_ALUT6 0x10E
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#define SIERRA_DEQ_ALUT7 0x10F
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#define SIERRA_DEQ_ALUT8 0x110
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#define SIERRA_DEQ_ALUT9 0x111
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#define SIERRA_DEQ_ALUT10 0x112
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#define SIERRA_DEQ_ALUT11 0x113
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#define SIERRA_DEQ_ALUT12 0x114
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#define SIERRA_DEQ_ALUT13 0x115
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#define SIERRA_DEQ_DFETAP_CTRL_PREG 0x128
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#define SIERRA_DFE_EN_1010_IGNORE_PREG 0x134
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#define SIERRA_DEQ_TAU_CTRL1_SLOW_MAINT_PREG 0x150
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#define SIERRA_DEQ_TAU_CTRL2_PREG 0x151
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#define SIERRA_DEQ_PICTRL_PREG 0x161
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#define SIERRA_CPICAL_TMRVAL_MODE1_PREG 0x170
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#define SIERRA_CPICAL_TMRVAL_MODE0_PREG 0x171
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#define SIERRA_CPICAL_PICNT_MODE1_PREG 0x174
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#define SIERRA_CPI_OUTBUF_RATESEL_PREG 0x17C
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#define SIERRA_CPICAL_RES_STARTCODE_MODE23_PREG 0x183
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#define SIERRA_LFPSDET_SUPPORT_PREG 0x188
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#define SIERRA_LFPSFILT_NS_PREG 0x18A
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#define SIERRA_LFPSFILT_RD_PREG 0x18B
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#define SIERRA_LFPSFILT_MP_PREG 0x18C
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#define SIERRA_SIGDET_SUPPORT_PREG 0x190
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#define SIERRA_SDFILT_H2L_A_PREG 0x191
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#define SIERRA_SDFILT_L2H_PREG 0x193
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#define SIERRA_RXBUFFER_CTLECTRL_PREG 0x19E
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#define SIERRA_RXBUFFER_RCDFECTRL_PREG 0x19F
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#define SIERRA_RXBUFFER_DFECTRL_PREG 0x1A0
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#define SIERRA_DEQ_TAU_CTRL1_FAST_MAINT_PREG 0x14F
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#define SIERRA_DEQ_TAU_CTRL1_SLOW_MAINT_PREG 0x150
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#define SIERRA_PHY_CONFIG_CTRL_OFFSET(block_offset) \
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(0xc000 << (block_offset))
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#define SIERRA_PHY_PLL_CFG 0xe
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#define SIERRA_MACRO_ID 0x00007364
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#define SIERRA_MAX_LANES 16
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#define PLL_LOCK_TIME 100000
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static const struct reg_field macro_id_type =
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REG_FIELD(SIERRA_MACRO_ID_REG, 0, 15);
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static const struct reg_field phy_pll_cfg_1 =
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REG_FIELD(SIERRA_PHY_PLL_CFG, 1, 1);
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static const struct reg_field pllctrl_lock =
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REG_FIELD(SIERRA_PLLCTRL_STATUS_PREG, 0, 0);
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struct cdns_sierra_inst {
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struct phy *phy;
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u32 phy_type;
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u32 num_lanes;
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u32 mlane;
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struct reset_control *lnk_rst;
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};
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struct cdns_reg_pairs {
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u16 val;
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u32 off;
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};
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struct cdns_sierra_data {
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u32 id_value;
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u8 block_offset_shift;
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u8 reg_offset_shift;
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u32 pcie_cmn_regs;
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u32 pcie_ln_regs;
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u32 usb_cmn_regs;
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u32 usb_ln_regs;
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struct cdns_reg_pairs *pcie_cmn_vals;
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struct cdns_reg_pairs *pcie_ln_vals;
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struct cdns_reg_pairs *usb_cmn_vals;
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struct cdns_reg_pairs *usb_ln_vals;
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};
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struct cdns_regmap_cdb_context {
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struct device *dev;
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void __iomem *base;
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u8 reg_offset_shift;
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};
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struct cdns_sierra_phy {
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struct device *dev;
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struct regmap *regmap;
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struct cdns_sierra_data *init_data;
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struct cdns_sierra_inst phys[SIERRA_MAX_LANES];
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struct reset_control *phy_rst;
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struct reset_control *apb_rst;
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struct regmap *regmap_lane_cdb[SIERRA_MAX_LANES];
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struct regmap *regmap_phy_config_ctrl;
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struct regmap *regmap_common_cdb;
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struct regmap_field *macro_id_type;
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struct regmap_field *phy_pll_cfg_1;
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struct regmap_field *pllctrl_lock[SIERRA_MAX_LANES];
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struct clk *clk;
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struct clk *cmn_refclk_dig_div;
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struct clk *cmn_refclk1_dig_div;
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int nsubnodes;
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u32 num_lanes;
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bool autoconf;
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};
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static int cdns_regmap_write(void *context, unsigned int reg, unsigned int val)
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{
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struct cdns_regmap_cdb_context *ctx = context;
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u32 offset = reg << ctx->reg_offset_shift;
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writew(val, ctx->base + offset);
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return 0;
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}
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static int cdns_regmap_read(void *context, unsigned int reg, unsigned int *val)
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{
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struct cdns_regmap_cdb_context *ctx = context;
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u32 offset = reg << ctx->reg_offset_shift;
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*val = readw(ctx->base + offset);
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return 0;
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}
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#define SIERRA_LANE_CDB_REGMAP_CONF(n) \
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{ \
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.name = "sierra_lane" n "_cdb", \
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.reg_stride = 1, \
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.fast_io = true, \
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.reg_write = cdns_regmap_write, \
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.reg_read = cdns_regmap_read, \
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}
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static struct regmap_config cdns_sierra_lane_cdb_config[] = {
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SIERRA_LANE_CDB_REGMAP_CONF("0"),
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SIERRA_LANE_CDB_REGMAP_CONF("1"),
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SIERRA_LANE_CDB_REGMAP_CONF("2"),
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SIERRA_LANE_CDB_REGMAP_CONF("3"),
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SIERRA_LANE_CDB_REGMAP_CONF("4"),
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SIERRA_LANE_CDB_REGMAP_CONF("5"),
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SIERRA_LANE_CDB_REGMAP_CONF("6"),
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SIERRA_LANE_CDB_REGMAP_CONF("7"),
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SIERRA_LANE_CDB_REGMAP_CONF("8"),
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SIERRA_LANE_CDB_REGMAP_CONF("9"),
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SIERRA_LANE_CDB_REGMAP_CONF("10"),
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SIERRA_LANE_CDB_REGMAP_CONF("11"),
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SIERRA_LANE_CDB_REGMAP_CONF("12"),
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SIERRA_LANE_CDB_REGMAP_CONF("13"),
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SIERRA_LANE_CDB_REGMAP_CONF("14"),
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SIERRA_LANE_CDB_REGMAP_CONF("15"),
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};
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static struct regmap_config cdns_sierra_common_cdb_config = {
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.name = "sierra_common_cdb",
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.reg_stride = 1,
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.fast_io = true,
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.reg_write = cdns_regmap_write,
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.reg_read = cdns_regmap_read,
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};
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static struct regmap_config cdns_sierra_phy_config_ctrl_config = {
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.name = "sierra_phy_config_ctrl",
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.reg_stride = 1,
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.fast_io = true,
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.reg_write = cdns_regmap_write,
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.reg_read = cdns_regmap_read,
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};
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static int cdns_sierra_phy_init(struct phy *gphy)
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{
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struct cdns_sierra_inst *ins = phy_get_drvdata(gphy);
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struct cdns_sierra_phy *phy = dev_get_drvdata(gphy->dev.parent);
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struct regmap *regmap;
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int i, j;
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struct cdns_reg_pairs *cmn_vals, *ln_vals;
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u32 num_cmn_regs, num_ln_regs;
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/* Initialise the PHY registers, unless auto configured */
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if (phy->autoconf)
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return 0;
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clk_set_rate(phy->cmn_refclk_dig_div, 25000000);
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clk_set_rate(phy->cmn_refclk1_dig_div, 25000000);
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if (ins->phy_type == PHY_TYPE_PCIE) {
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num_cmn_regs = phy->init_data->pcie_cmn_regs;
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num_ln_regs = phy->init_data->pcie_ln_regs;
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cmn_vals = phy->init_data->pcie_cmn_vals;
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ln_vals = phy->init_data->pcie_ln_vals;
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} else if (ins->phy_type == PHY_TYPE_USB3) {
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num_cmn_regs = phy->init_data->usb_cmn_regs;
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num_ln_regs = phy->init_data->usb_ln_regs;
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cmn_vals = phy->init_data->usb_cmn_vals;
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ln_vals = phy->init_data->usb_ln_vals;
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} else {
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return -EINVAL;
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}
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regmap = phy->regmap_common_cdb;
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for (j = 0; j < num_cmn_regs ; j++)
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regmap_write(regmap, cmn_vals[j].off, cmn_vals[j].val);
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for (i = 0; i < ins->num_lanes; i++) {
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for (j = 0; j < num_ln_regs ; j++) {
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regmap = phy->regmap_lane_cdb[i + ins->mlane];
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regmap_write(regmap, ln_vals[j].off, ln_vals[j].val);
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}
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}
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return 0;
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}
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static int cdns_sierra_phy_on(struct phy *gphy)
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{
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struct cdns_sierra_phy *sp = dev_get_drvdata(gphy->dev.parent);
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struct cdns_sierra_inst *ins = phy_get_drvdata(gphy);
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struct device *dev = sp->dev;
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u32 val;
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int ret;
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/* Take the PHY lane group out of reset */
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ret = reset_control_deassert(ins->lnk_rst);
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if (ret) {
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dev_err(dev, "Failed to take the PHY lane out of reset\n");
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return ret;
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}
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ret = regmap_field_read_poll_timeout(sp->pllctrl_lock[ins->mlane],
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val, val, 1000, PLL_LOCK_TIME);
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if (ret < 0)
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dev_err(dev, "PLL lock of lane failed\n");
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return ret;
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}
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static int cdns_sierra_phy_off(struct phy *gphy)
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{
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struct cdns_sierra_inst *ins = phy_get_drvdata(gphy);
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return reset_control_assert(ins->lnk_rst);
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}
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static int cdns_sierra_phy_reset(struct phy *gphy)
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{
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struct cdns_sierra_phy *sp = dev_get_drvdata(gphy->dev.parent);
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reset_control_assert(sp->phy_rst);
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reset_control_deassert(sp->phy_rst);
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return 0;
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};
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static const struct phy_ops ops = {
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.init = cdns_sierra_phy_init,
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.power_on = cdns_sierra_phy_on,
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.power_off = cdns_sierra_phy_off,
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.reset = cdns_sierra_phy_reset,
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.owner = THIS_MODULE,
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};
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static int cdns_sierra_get_optional(struct cdns_sierra_inst *inst,
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struct device_node *child)
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{
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if (of_property_read_u32(child, "reg", &inst->mlane))
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return -EINVAL;
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if (of_property_read_u32(child, "cdns,num-lanes", &inst->num_lanes))
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return -EINVAL;
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if (of_property_read_u32(child, "cdns,phy-type", &inst->phy_type))
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return -EINVAL;
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return 0;
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}
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static const struct of_device_id cdns_sierra_id_table[];
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static struct regmap *cdns_regmap_init(struct device *dev, void __iomem *base,
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u32 block_offset, u8 reg_offset_shift,
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const struct regmap_config *config)
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{
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struct cdns_regmap_cdb_context *ctx;
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ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
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if (!ctx)
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return ERR_PTR(-ENOMEM);
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ctx->dev = dev;
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ctx->base = base + block_offset;
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ctx->reg_offset_shift = reg_offset_shift;
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return devm_regmap_init(dev, NULL, ctx, config);
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}
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static int cdns_regfield_init(struct cdns_sierra_phy *sp)
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{
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struct device *dev = sp->dev;
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struct regmap_field *field;
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struct regmap *regmap;
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int i;
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regmap = sp->regmap_common_cdb;
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field = devm_regmap_field_alloc(dev, regmap, macro_id_type);
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if (IS_ERR(field)) {
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dev_err(dev, "MACRO_ID_TYPE reg field init failed\n");
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return PTR_ERR(field);
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}
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sp->macro_id_type = field;
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regmap = sp->regmap_phy_config_ctrl;
|
|
field = devm_regmap_field_alloc(dev, regmap, phy_pll_cfg_1);
|
|
if (IS_ERR(field)) {
|
|
dev_err(dev, "PHY_PLL_CFG_1 reg field init failed\n");
|
|
return PTR_ERR(field);
|
|
}
|
|
sp->phy_pll_cfg_1 = field;
|
|
|
|
for (i = 0; i < SIERRA_MAX_LANES; i++) {
|
|
regmap = sp->regmap_lane_cdb[i];
|
|
field = devm_regmap_field_alloc(dev, regmap, pllctrl_lock);
|
|
if (IS_ERR(field)) {
|
|
dev_err(dev, "P%d_ENABLE reg field init failed\n", i);
|
|
return PTR_ERR(field);
|
|
}
|
|
sp->pllctrl_lock[i] = field;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cdns_regmap_init_blocks(struct cdns_sierra_phy *sp,
|
|
void __iomem *base, u8 block_offset_shift,
|
|
u8 reg_offset_shift)
|
|
{
|
|
struct device *dev = sp->dev;
|
|
struct regmap *regmap;
|
|
u32 block_offset;
|
|
int i;
|
|
|
|
for (i = 0; i < SIERRA_MAX_LANES; i++) {
|
|
block_offset = SIERRA_LANE_CDB_OFFSET(i, block_offset_shift,
|
|
reg_offset_shift);
|
|
regmap = cdns_regmap_init(dev, base, block_offset,
|
|
reg_offset_shift,
|
|
&cdns_sierra_lane_cdb_config[i]);
|
|
if (IS_ERR(regmap)) {
|
|
dev_err(dev, "Failed to init lane CDB regmap\n");
|
|
return PTR_ERR(regmap);
|
|
}
|
|
sp->regmap_lane_cdb[i] = regmap;
|
|
}
|
|
|
|
regmap = cdns_regmap_init(dev, base, SIERRA_COMMON_CDB_OFFSET,
|
|
reg_offset_shift,
|
|
&cdns_sierra_common_cdb_config);
|
|
if (IS_ERR(regmap)) {
|
|
dev_err(dev, "Failed to init common CDB regmap\n");
|
|
return PTR_ERR(regmap);
|
|
}
|
|
sp->regmap_common_cdb = regmap;
|
|
|
|
block_offset = SIERRA_PHY_CONFIG_CTRL_OFFSET(block_offset_shift);
|
|
regmap = cdns_regmap_init(dev, base, block_offset, reg_offset_shift,
|
|
&cdns_sierra_phy_config_ctrl_config);
|
|
if (IS_ERR(regmap)) {
|
|
dev_err(dev, "Failed to init PHY config and control regmap\n");
|
|
return PTR_ERR(regmap);
|
|
}
|
|
sp->regmap_phy_config_ctrl = regmap;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cdns_sierra_phy_probe(struct platform_device *pdev)
|
|
{
|
|
struct cdns_sierra_phy *sp;
|
|
struct phy_provider *phy_provider;
|
|
struct device *dev = &pdev->dev;
|
|
const struct of_device_id *match;
|
|
struct cdns_sierra_data *data;
|
|
unsigned int id_value;
|
|
struct resource *res;
|
|
int i, ret, node = 0;
|
|
void __iomem *base;
|
|
struct clk *clk;
|
|
struct device_node *dn = dev->of_node, *child;
|
|
|
|
if (of_get_child_count(dn) == 0)
|
|
return -ENODEV;
|
|
|
|
/* Get init data for this PHY */
|
|
match = of_match_device(cdns_sierra_id_table, dev);
|
|
if (!match)
|
|
return -EINVAL;
|
|
|
|
data = (struct cdns_sierra_data *)match->data;
|
|
|
|
sp = devm_kzalloc(dev, sizeof(*sp), GFP_KERNEL);
|
|
if (!sp)
|
|
return -ENOMEM;
|
|
dev_set_drvdata(dev, sp);
|
|
sp->dev = dev;
|
|
sp->init_data = data;
|
|
|
|
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
base = devm_ioremap_resource(dev, res);
|
|
if (IS_ERR(base)) {
|
|
dev_err(dev, "missing \"reg\"\n");
|
|
return PTR_ERR(base);
|
|
}
|
|
|
|
ret = cdns_regmap_init_blocks(sp, base, data->block_offset_shift,
|
|
data->reg_offset_shift);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = cdns_regfield_init(sp);
|
|
if (ret)
|
|
return ret;
|
|
|
|
platform_set_drvdata(pdev, sp);
|
|
|
|
sp->clk = devm_clk_get_optional(dev, "phy_clk");
|
|
if (IS_ERR(sp->clk)) {
|
|
dev_err(dev, "failed to get clock phy_clk\n");
|
|
return PTR_ERR(sp->clk);
|
|
}
|
|
|
|
sp->phy_rst = devm_reset_control_get(dev, "sierra_reset");
|
|
if (IS_ERR(sp->phy_rst)) {
|
|
dev_err(dev, "failed to get reset\n");
|
|
return PTR_ERR(sp->phy_rst);
|
|
}
|
|
|
|
sp->apb_rst = devm_reset_control_get_optional(dev, "sierra_apb");
|
|
if (IS_ERR(sp->apb_rst)) {
|
|
dev_err(dev, "failed to get apb reset\n");
|
|
return PTR_ERR(sp->apb_rst);
|
|
}
|
|
|
|
clk = devm_clk_get_optional(dev, "cmn_refclk_dig_div");
|
|
if (IS_ERR(clk)) {
|
|
dev_err(dev, "cmn_refclk_dig_div clock not found\n");
|
|
ret = PTR_ERR(clk);
|
|
return ret;
|
|
}
|
|
sp->cmn_refclk_dig_div = clk;
|
|
|
|
clk = devm_clk_get_optional(dev, "cmn_refclk1_dig_div");
|
|
if (IS_ERR(clk)) {
|
|
dev_err(dev, "cmn_refclk1_dig_div clock not found\n");
|
|
ret = PTR_ERR(clk);
|
|
return ret;
|
|
}
|
|
sp->cmn_refclk1_dig_div = clk;
|
|
|
|
ret = clk_prepare_enable(sp->clk);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* Enable APB */
|
|
reset_control_deassert(sp->apb_rst);
|
|
|
|
/* Check that PHY is present */
|
|
regmap_field_read(sp->macro_id_type, &id_value);
|
|
if (sp->init_data->id_value != id_value) {
|
|
ret = -EINVAL;
|
|
goto clk_disable;
|
|
}
|
|
|
|
sp->autoconf = of_property_read_bool(dn, "cdns,autoconf");
|
|
|
|
for_each_available_child_of_node(dn, child) {
|
|
struct phy *gphy;
|
|
|
|
sp->phys[node].lnk_rst =
|
|
of_reset_control_array_get_exclusive(child);
|
|
|
|
if (IS_ERR(sp->phys[node].lnk_rst)) {
|
|
dev_err(dev, "failed to get reset %s\n",
|
|
child->full_name);
|
|
ret = PTR_ERR(sp->phys[node].lnk_rst);
|
|
goto put_child2;
|
|
}
|
|
|
|
if (!sp->autoconf) {
|
|
ret = cdns_sierra_get_optional(&sp->phys[node], child);
|
|
if (ret) {
|
|
dev_err(dev, "missing property in node %s\n",
|
|
child->name);
|
|
goto put_child;
|
|
}
|
|
}
|
|
|
|
sp->num_lanes += sp->phys[node].num_lanes;
|
|
|
|
gphy = devm_phy_create(dev, child, &ops);
|
|
|
|
if (IS_ERR(gphy)) {
|
|
ret = PTR_ERR(gphy);
|
|
goto put_child;
|
|
}
|
|
sp->phys[node].phy = gphy;
|
|
phy_set_drvdata(gphy, &sp->phys[node]);
|
|
|
|
node++;
|
|
}
|
|
sp->nsubnodes = node;
|
|
|
|
if (sp->num_lanes > SIERRA_MAX_LANES) {
|
|
dev_err(dev, "Invalid lane configuration\n");
|
|
goto put_child2;
|
|
}
|
|
|
|
/* If more than one subnode, configure the PHY as multilink */
|
|
if (!sp->autoconf && sp->nsubnodes > 1)
|
|
regmap_field_write(sp->phy_pll_cfg_1, 0x1);
|
|
|
|
pm_runtime_enable(dev);
|
|
phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
|
|
reset_control_deassert(sp->phy_rst);
|
|
return PTR_ERR_OR_ZERO(phy_provider);
|
|
|
|
put_child:
|
|
node++;
|
|
put_child2:
|
|
for (i = 0; i < node; i++)
|
|
reset_control_put(sp->phys[i].lnk_rst);
|
|
of_node_put(child);
|
|
clk_disable:
|
|
clk_disable_unprepare(sp->clk);
|
|
reset_control_assert(sp->apb_rst);
|
|
return ret;
|
|
}
|
|
|
|
static int cdns_sierra_phy_remove(struct platform_device *pdev)
|
|
{
|
|
struct cdns_sierra_phy *phy = platform_get_drvdata(pdev);
|
|
int i;
|
|
|
|
reset_control_assert(phy->phy_rst);
|
|
reset_control_assert(phy->apb_rst);
|
|
pm_runtime_disable(&pdev->dev);
|
|
|
|
/*
|
|
* The device level resets will be put automatically.
|
|
* Need to put the subnode resets here though.
|
|
*/
|
|
for (i = 0; i < phy->nsubnodes; i++) {
|
|
reset_control_assert(phy->phys[i].lnk_rst);
|
|
reset_control_put(phy->phys[i].lnk_rst);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* refclk100MHz_32b_PCIe_cmn_pll_ext_ssc */
|
|
static struct cdns_reg_pairs cdns_pcie_cmn_regs_ext_ssc[] = {
|
|
{0x2106, SIERRA_CMN_PLLLC_LF_COEFF_MODE1_PREG},
|
|
{0x2106, SIERRA_CMN_PLLLC_LF_COEFF_MODE0_PREG},
|
|
{0x8A06, SIERRA_CMN_PLLLC_BWCAL_MODE1_PREG},
|
|
{0x8A06, SIERRA_CMN_PLLLC_BWCAL_MODE0_PREG},
|
|
{0x1B1B, SIERRA_CMN_PLLLC_SS_TIME_STEPSIZE_MODE_PREG}
|
|
};
|
|
|
|
/* refclk100MHz_32b_PCIe_ln_ext_ssc */
|
|
static struct cdns_reg_pairs cdns_pcie_ln_regs_ext_ssc[] = {
|
|
{0x813E, SIERRA_CLKPATHCTRL_TMR_PREG},
|
|
{0x8047, SIERRA_RX_CREQ_FLTR_A_MODE3_PREG},
|
|
{0x808F, SIERRA_RX_CREQ_FLTR_A_MODE2_PREG},
|
|
{0x808F, SIERRA_RX_CREQ_FLTR_A_MODE1_PREG},
|
|
{0x808F, SIERRA_RX_CREQ_FLTR_A_MODE0_PREG},
|
|
{0x033C, SIERRA_RX_CTLE_MAINTENANCE_PREG},
|
|
{0x44CC, SIERRA_CREQ_EQ_OPEN_EYE_THRESH_PREG}
|
|
};
|
|
|
|
/* refclk100MHz_20b_USB_cmn_pll_ext_ssc */
|
|
static struct cdns_reg_pairs cdns_usb_cmn_regs_ext_ssc[] = {
|
|
{0x2085, SIERRA_CMN_PLLLC_LF_COEFF_MODE1_PREG},
|
|
{0x2085, SIERRA_CMN_PLLLC_LF_COEFF_MODE0_PREG},
|
|
{0x0000, SIERRA_CMN_PLLLC_BWCAL_MODE0_PREG},
|
|
{0x0000, SIERRA_CMN_PLLLC_SS_TIME_STEPSIZE_MODE_PREG}
|
|
};
|
|
|
|
/* refclk100MHz_20b_USB_ln_ext_ssc */
|
|
static struct cdns_reg_pairs cdns_usb_ln_regs_ext_ssc[] = {
|
|
{0xFE0A, SIERRA_DET_STANDEC_A_PREG},
|
|
{0x000F, SIERRA_DET_STANDEC_B_PREG},
|
|
{0x55A5, SIERRA_DET_STANDEC_C_PREG},
|
|
{0x69ad, SIERRA_DET_STANDEC_D_PREG},
|
|
{0x0241, SIERRA_DET_STANDEC_E_PREG},
|
|
{0x0110, SIERRA_PSM_LANECAL_DLY_A1_RESETS_PREG},
|
|
{0x0014, SIERRA_PSM_A0IN_TMR_PREG},
|
|
{0xCF00, SIERRA_PSM_DIAG_PREG},
|
|
{0x001F, SIERRA_PSC_TX_A0_PREG},
|
|
{0x0007, SIERRA_PSC_TX_A1_PREG},
|
|
{0x0003, SIERRA_PSC_TX_A2_PREG},
|
|
{0x0003, SIERRA_PSC_TX_A3_PREG},
|
|
{0x0FFF, SIERRA_PSC_RX_A0_PREG},
|
|
{0x0003, SIERRA_PSC_RX_A1_PREG},
|
|
{0x0003, SIERRA_PSC_RX_A2_PREG},
|
|
{0x0001, SIERRA_PSC_RX_A3_PREG},
|
|
{0x0001, SIERRA_PLLCTRL_SUBRATE_PREG},
|
|
{0x0406, SIERRA_PLLCTRL_GEN_D_PREG},
|
|
{0x5233, SIERRA_PLLCTRL_CPGAIN_MODE_PREG},
|
|
{0x00CA, SIERRA_CLKPATH_BIASTRIM_PREG},
|
|
{0x2512, SIERRA_DFE_BIASTRIM_PREG},
|
|
{0x0000, SIERRA_DRVCTRL_ATTEN_PREG},
|
|
{0x823E, SIERRA_CLKPATHCTRL_TMR_PREG},
|
|
{0x078F, SIERRA_RX_CREQ_FLTR_A_MODE1_PREG},
|
|
{0x078F, SIERRA_RX_CREQ_FLTR_A_MODE0_PREG},
|
|
{0x7B3C, SIERRA_CREQ_CCLKDET_MODE01_PREG},
|
|
{0x023C, SIERRA_RX_CTLE_MAINTENANCE_PREG},
|
|
{0x3232, SIERRA_CREQ_FSMCLK_SEL_PREG},
|
|
{0x0000, SIERRA_CREQ_EQ_CTRL_PREG},
|
|
{0x0000, SIERRA_CREQ_SPARE_PREG},
|
|
{0xCC44, SIERRA_CREQ_EQ_OPEN_EYE_THRESH_PREG},
|
|
{0x8452, SIERRA_CTLELUT_CTRL_PREG},
|
|
{0x4121, SIERRA_DFE_ECMP_RATESEL_PREG},
|
|
{0x4121, SIERRA_DFE_SMP_RATESEL_PREG},
|
|
{0x0003, SIERRA_DEQ_PHALIGN_CTRL},
|
|
{0x3200, SIERRA_DEQ_CONCUR_CTRL1_PREG},
|
|
{0x5064, SIERRA_DEQ_CONCUR_CTRL2_PREG},
|
|
{0x0030, SIERRA_DEQ_EPIPWR_CTRL2_PREG},
|
|
{0x0048, SIERRA_DEQ_FAST_MAINT_CYCLES_PREG},
|
|
{0x5A5A, SIERRA_DEQ_ERRCMP_CTRL_PREG},
|
|
{0x02F5, SIERRA_DEQ_OFFSET_CTRL_PREG},
|
|
{0x02F5, SIERRA_DEQ_GAIN_CTRL_PREG},
|
|
{0x9999, SIERRA_DEQ_VGATUNE_CTRL_PREG},
|
|
{0x0014, SIERRA_DEQ_GLUT0},
|
|
{0x0014, SIERRA_DEQ_GLUT1},
|
|
{0x0014, SIERRA_DEQ_GLUT2},
|
|
{0x0014, SIERRA_DEQ_GLUT3},
|
|
{0x0014, SIERRA_DEQ_GLUT4},
|
|
{0x0014, SIERRA_DEQ_GLUT5},
|
|
{0x0014, SIERRA_DEQ_GLUT6},
|
|
{0x0014, SIERRA_DEQ_GLUT7},
|
|
{0x0014, SIERRA_DEQ_GLUT8},
|
|
{0x0014, SIERRA_DEQ_GLUT9},
|
|
{0x0014, SIERRA_DEQ_GLUT10},
|
|
{0x0014, SIERRA_DEQ_GLUT11},
|
|
{0x0014, SIERRA_DEQ_GLUT12},
|
|
{0x0014, SIERRA_DEQ_GLUT13},
|
|
{0x0014, SIERRA_DEQ_GLUT14},
|
|
{0x0014, SIERRA_DEQ_GLUT15},
|
|
{0x0014, SIERRA_DEQ_GLUT16},
|
|
{0x0BAE, SIERRA_DEQ_ALUT0},
|
|
{0x0AEB, SIERRA_DEQ_ALUT1},
|
|
{0x0A28, SIERRA_DEQ_ALUT2},
|
|
{0x0965, SIERRA_DEQ_ALUT3},
|
|
{0x08A2, SIERRA_DEQ_ALUT4},
|
|
{0x07DF, SIERRA_DEQ_ALUT5},
|
|
{0x071C, SIERRA_DEQ_ALUT6},
|
|
{0x0659, SIERRA_DEQ_ALUT7},
|
|
{0x0596, SIERRA_DEQ_ALUT8},
|
|
{0x0514, SIERRA_DEQ_ALUT9},
|
|
{0x0492, SIERRA_DEQ_ALUT10},
|
|
{0x0410, SIERRA_DEQ_ALUT11},
|
|
{0x038E, SIERRA_DEQ_ALUT12},
|
|
{0x030C, SIERRA_DEQ_ALUT13},
|
|
{0x03F4, SIERRA_DEQ_DFETAP_CTRL_PREG},
|
|
{0x0001, SIERRA_DFE_EN_1010_IGNORE_PREG},
|
|
{0x3C01, SIERRA_DEQ_TAU_CTRL1_FAST_MAINT_PREG},
|
|
{0x3C40, SIERRA_DEQ_TAU_CTRL1_SLOW_MAINT_PREG},
|
|
{0x1C08, SIERRA_DEQ_TAU_CTRL2_PREG},
|
|
{0x0033, SIERRA_DEQ_PICTRL_PREG},
|
|
{0x0400, SIERRA_CPICAL_TMRVAL_MODE1_PREG},
|
|
{0x0330, SIERRA_CPICAL_TMRVAL_MODE0_PREG},
|
|
{0x01FF, SIERRA_CPICAL_PICNT_MODE1_PREG},
|
|
{0x0009, SIERRA_CPI_OUTBUF_RATESEL_PREG},
|
|
{0x3232, SIERRA_CPICAL_RES_STARTCODE_MODE23_PREG},
|
|
{0x0005, SIERRA_LFPSDET_SUPPORT_PREG},
|
|
{0x000F, SIERRA_LFPSFILT_NS_PREG},
|
|
{0x0009, SIERRA_LFPSFILT_RD_PREG},
|
|
{0x0001, SIERRA_LFPSFILT_MP_PREG},
|
|
{0x6013, SIERRA_SIGDET_SUPPORT_PREG},
|
|
{0x8013, SIERRA_SDFILT_H2L_A_PREG},
|
|
{0x8009, SIERRA_SDFILT_L2H_PREG},
|
|
{0x0024, SIERRA_RXBUFFER_CTLECTRL_PREG},
|
|
{0x0020, SIERRA_RXBUFFER_RCDFECTRL_PREG},
|
|
{0x4243, SIERRA_RXBUFFER_DFECTRL_PREG}
|
|
};
|
|
|
|
static const struct cdns_sierra_data cdns_map_sierra = {
|
|
SIERRA_MACRO_ID,
|
|
0x2,
|
|
0x2,
|
|
ARRAY_SIZE(cdns_pcie_cmn_regs_ext_ssc),
|
|
ARRAY_SIZE(cdns_pcie_ln_regs_ext_ssc),
|
|
ARRAY_SIZE(cdns_usb_cmn_regs_ext_ssc),
|
|
ARRAY_SIZE(cdns_usb_ln_regs_ext_ssc),
|
|
cdns_pcie_cmn_regs_ext_ssc,
|
|
cdns_pcie_ln_regs_ext_ssc,
|
|
cdns_usb_cmn_regs_ext_ssc,
|
|
cdns_usb_ln_regs_ext_ssc,
|
|
};
|
|
|
|
static const struct cdns_sierra_data cdns_ti_map_sierra = {
|
|
SIERRA_MACRO_ID,
|
|
0x0,
|
|
0x1,
|
|
ARRAY_SIZE(cdns_pcie_cmn_regs_ext_ssc),
|
|
ARRAY_SIZE(cdns_pcie_ln_regs_ext_ssc),
|
|
ARRAY_SIZE(cdns_usb_cmn_regs_ext_ssc),
|
|
ARRAY_SIZE(cdns_usb_ln_regs_ext_ssc),
|
|
cdns_pcie_cmn_regs_ext_ssc,
|
|
cdns_pcie_ln_regs_ext_ssc,
|
|
cdns_usb_cmn_regs_ext_ssc,
|
|
cdns_usb_ln_regs_ext_ssc,
|
|
};
|
|
|
|
static const struct of_device_id cdns_sierra_id_table[] = {
|
|
{
|
|
.compatible = "cdns,sierra-phy-t0",
|
|
.data = &cdns_map_sierra,
|
|
},
|
|
{
|
|
.compatible = "ti,sierra-phy-t0",
|
|
.data = &cdns_ti_map_sierra,
|
|
},
|
|
{}
|
|
};
|
|
MODULE_DEVICE_TABLE(of, cdns_sierra_id_table);
|
|
|
|
static struct platform_driver cdns_sierra_driver = {
|
|
.probe = cdns_sierra_phy_probe,
|
|
.remove = cdns_sierra_phy_remove,
|
|
.driver = {
|
|
.name = "cdns-sierra-phy",
|
|
.of_match_table = cdns_sierra_id_table,
|
|
},
|
|
};
|
|
module_platform_driver(cdns_sierra_driver);
|
|
|
|
MODULE_ALIAS("platform:cdns_sierra");
|
|
MODULE_AUTHOR("Cadence Design Systems");
|
|
MODULE_DESCRIPTION("CDNS sierra phy driver");
|
|
MODULE_LICENSE("GPL v2");
|