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linux/drivers/phy/microchip/sparx5_serdes.c
Yang Yingliang b4dc97ab0a phy: Sparx5 Eth SerDes: Fix return value check in sparx5_serdes_probe() 
In case of error, the function devm_ioremap() returns NULL
pointer not ERR_PTR(). The IS_ERR() test in the return value
check should be replaced with NULL test.

Fixes: 2ff8a1eeb5 ("phy: Add Sparx5 ethernet serdes PHY driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20210909072149.2934047-1-yangyingliang@huawei.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-10-26 16:36:23 +05:30

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// SPDX-License-Identifier: GPL-2.0-or-later
/* Microchip Sparx5 Switch SerDes driver
*
* Copyright (c) 2020 Microchip Technology Inc. and its subsidiaries.
*
* The Sparx5 Chip Register Model can be browsed at this location:
* https://github.com/microchip-ung/sparx-5_reginfo
* and the datasheet is available here:
* https://ww1.microchip.com/downloads/en/DeviceDoc/SparX-5_Family_L2L3_Enterprise_10G_Ethernet_Switches_Datasheet_00003822B.pdf
*/
#include <linux/printk.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/netdevice.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/io.h>
#include <linux/clk.h>
#include <linux/phy.h>
#include <linux/phy/phy.h>
#include "sparx5_serdes.h"
#define SPX5_CMU_MAX 14
#define SPX5_SERDES_10G_START 13
#define SPX5_SERDES_25G_START 25
enum sparx5_10g28cmu_mode {
SPX5_SD10G28_CMU_MAIN = 0,
SPX5_SD10G28_CMU_AUX1 = 1,
SPX5_SD10G28_CMU_AUX2 = 3,
SPX5_SD10G28_CMU_NONE = 4,
};
enum sparx5_sd25g28_mode_preset_type {
SPX5_SD25G28_MODE_PRESET_25000,
SPX5_SD25G28_MODE_PRESET_10000,
SPX5_SD25G28_MODE_PRESET_5000,
SPX5_SD25G28_MODE_PRESET_SD_2G5,
SPX5_SD25G28_MODE_PRESET_1000BASEX,
};
enum sparx5_sd10g28_mode_preset_type {
SPX5_SD10G28_MODE_PRESET_10000,
SPX5_SD10G28_MODE_PRESET_SFI_5000_6G,
SPX5_SD10G28_MODE_PRESET_SFI_5000_10G,
SPX5_SD10G28_MODE_PRESET_QSGMII,
SPX5_SD10G28_MODE_PRESET_SD_2G5,
SPX5_SD10G28_MODE_PRESET_1000BASEX,
};
struct sparx5_serdes_io_resource {
enum sparx5_serdes_target id;
phys_addr_t offset;
};
struct sparx5_sd25g28_mode_preset {
u8 bitwidth;
u8 tx_pre_div;
u8 fifo_ck_div;
u8 pre_divsel;
u8 vco_div_mode;
u8 sel_div;
u8 ck_bitwidth;
u8 subrate;
u8 com_txcal_en;
u8 com_tx_reserve_msb;
u8 com_tx_reserve_lsb;
u8 cfg_itx_ipcml_base;
u8 tx_reserve_lsb;
u8 tx_reserve_msb;
u8 bw;
u8 rxterm;
u8 dfe_tap;
u8 dfe_enable;
bool txmargin;
u8 cfg_ctle_rstn;
u8 r_dfe_rstn;
u8 cfg_pi_bw_3_0;
u8 tx_tap_dly;
u8 tx_tap_adv;
};
struct sparx5_sd25g28_media_preset {
u8 cfg_eq_c_force_3_0;
u8 cfg_vga_ctrl_byp_4_0;
u8 cfg_eq_r_force_3_0;
u8 cfg_en_adv;
u8 cfg_en_main;
u8 cfg_en_dly;
u8 cfg_tap_adv_3_0;
u8 cfg_tap_main;
u8 cfg_tap_dly_4_0;
u8 cfg_alos_thr_2_0;
};
struct sparx5_sd25g28_args {
u8 if_width; /* UDL if-width: 10/16/20/32/64 */
bool skip_cmu_cfg:1; /* Enable/disable CMU cfg */
enum sparx5_10g28cmu_mode cmu_sel; /* Device/Mode serdes uses */
bool no_pwrcycle:1; /* Omit initial power-cycle */
bool txinvert:1; /* Enable inversion of output data */
bool rxinvert:1; /* Enable inversion of input data */
u16 txswing; /* Set output level */
u8 rate; /* Rate of network interface */
u8 pi_bw_gen1;
u8 duty_cycle; /* Set output level to half/full */
bool mute:1; /* Mute Output Buffer */
bool reg_rst:1;
u8 com_pll_reserve;
};
struct sparx5_sd25g28_params {
u8 reg_rst;
u8 cfg_jc_byp;
u8 cfg_common_reserve_7_0;
u8 r_reg_manual;
u8 r_d_width_ctrl_from_hwt;
u8 r_d_width_ctrl_2_0;
u8 r_txfifo_ck_div_pmad_2_0;
u8 r_rxfifo_ck_div_pmad_2_0;
u8 cfg_pll_lol_set;
u8 cfg_vco_div_mode_1_0;
u8 cfg_pre_divsel_1_0;
u8 cfg_sel_div_3_0;
u8 cfg_vco_start_code_3_0;
u8 cfg_pma_tx_ck_bitwidth_2_0;
u8 cfg_tx_prediv_1_0;
u8 cfg_rxdiv_sel_2_0;
u8 cfg_tx_subrate_2_0;
u8 cfg_rx_subrate_2_0;
u8 r_multi_lane_mode;
u8 cfg_cdrck_en;
u8 cfg_dfeck_en;
u8 cfg_dfe_pd;
u8 cfg_dfedmx_pd;
u8 cfg_dfetap_en_5_1;
u8 cfg_dmux_pd;
u8 cfg_dmux_clk_pd;
u8 cfg_erramp_pd;
u8 cfg_pi_dfe_en;
u8 cfg_pi_en;
u8 cfg_pd_ctle;
u8 cfg_summer_en;
u8 cfg_pmad_ck_pd;
u8 cfg_pd_clk;
u8 cfg_pd_cml;
u8 cfg_pd_driver;
u8 cfg_rx_reg_pu;
u8 cfg_pd_rms_det;
u8 cfg_dcdr_pd;
u8 cfg_ecdr_pd;
u8 cfg_pd_sq;
u8 cfg_itx_ipdriver_base_2_0;
u8 cfg_tap_dly_4_0;
u8 cfg_tap_main;
u8 cfg_en_main;
u8 cfg_tap_adv_3_0;
u8 cfg_en_adv;
u8 cfg_en_dly;
u8 cfg_iscan_en;
u8 l1_pcs_en_fast_iscan;
u8 l0_cfg_bw_1_0;
u8 l0_cfg_txcal_en;
u8 cfg_en_dummy;
u8 cfg_pll_reserve_3_0;
u8 l0_cfg_tx_reserve_15_8;
u8 l0_cfg_tx_reserve_7_0;
u8 cfg_tx_reserve_15_8;
u8 cfg_tx_reserve_7_0;
u8 cfg_bw_1_0;
u8 cfg_txcal_man_en;
u8 cfg_phase_man_4_0;
u8 cfg_quad_man_1_0;
u8 cfg_txcal_shift_code_5_0;
u8 cfg_txcal_valid_sel_3_0;
u8 cfg_txcal_en;
u8 cfg_cdr_kf_2_0;
u8 cfg_cdr_m_7_0;
u8 cfg_pi_bw_3_0;
u8 cfg_pi_steps_1_0;
u8 cfg_dis_2ndorder;
u8 cfg_ctle_rstn;
u8 r_dfe_rstn;
u8 cfg_alos_thr_2_0;
u8 cfg_itx_ipcml_base_1_0;
u8 cfg_rx_reserve_7_0;
u8 cfg_rx_reserve_15_8;
u8 cfg_rxterm_2_0;
u8 cfg_fom_selm;
u8 cfg_rx_sp_ctle_1_0;
u8 cfg_isel_ctle_1_0;
u8 cfg_vga_ctrl_byp_4_0;
u8 cfg_vga_byp;
u8 cfg_agc_adpt_byp;
u8 cfg_eqr_byp;
u8 cfg_eqr_force_3_0;
u8 cfg_eqc_force_3_0;
u8 cfg_sum_setcm_en;
u8 cfg_init_pos_iscan_6_0;
u8 cfg_init_pos_ipi_6_0;
u8 cfg_dfedig_m_2_0;
u8 cfg_en_dfedig;
u8 cfg_pi_DFE_en;
u8 cfg_tx2rx_lp_en;
u8 cfg_txlb_en;
u8 cfg_rx2tx_lp_en;
u8 cfg_rxlb_en;
u8 r_tx_pol_inv;
u8 r_rx_pol_inv;
};
struct sparx5_sd10g28_media_preset {
u8 cfg_en_adv;
u8 cfg_en_main;
u8 cfg_en_dly;
u8 cfg_tap_adv_3_0;
u8 cfg_tap_main;
u8 cfg_tap_dly_4_0;
u8 cfg_vga_ctrl_3_0;
u8 cfg_vga_cp_2_0;
u8 cfg_eq_res_3_0;
u8 cfg_eq_r_byp;
u8 cfg_eq_c_force_3_0;
u8 cfg_alos_thr_3_0;
};
struct sparx5_sd10g28_mode_preset {
u8 bwidth; /* interface width: 10/16/20/32/64 */
enum sparx5_10g28cmu_mode cmu_sel; /* Device/Mode serdes uses */
u8 rate; /* Rate of network interface */
u8 dfe_tap;
u8 dfe_enable;
u8 pi_bw_gen1;
u8 duty_cycle; /* Set output level to half/full */
};
struct sparx5_sd10g28_args {
bool skip_cmu_cfg:1; /* Enable/disable CMU cfg */
bool no_pwrcycle:1; /* Omit initial power-cycle */
bool txinvert:1; /* Enable inversion of output data */
bool rxinvert:1; /* Enable inversion of input data */
bool txmargin:1; /* Set output level to half/full */
u16 txswing; /* Set output level */
bool mute:1; /* Mute Output Buffer */
bool is_6g:1;
bool reg_rst:1;
};
struct sparx5_sd10g28_params {
u8 cmu_sel;
u8 is_6g;
u8 skip_cmu_cfg;
u8 cfg_lane_reserve_7_0;
u8 cfg_ssc_rtl_clk_sel;
u8 cfg_lane_reserve_15_8;
u8 cfg_txrate_1_0;
u8 cfg_rxrate_1_0;
u8 r_d_width_ctrl_2_0;
u8 cfg_pma_tx_ck_bitwidth_2_0;
u8 cfg_rxdiv_sel_2_0;
u8 r_pcs2pma_phymode_4_0;
u8 cfg_lane_id_2_0;
u8 cfg_cdrck_en;
u8 cfg_dfeck_en;
u8 cfg_dfe_pd;
u8 cfg_dfetap_en_5_1;
u8 cfg_erramp_pd;
u8 cfg_pi_DFE_en;
u8 cfg_pi_en;
u8 cfg_pd_ctle;
u8 cfg_summer_en;
u8 cfg_pd_rx_cktree;
u8 cfg_pd_clk;
u8 cfg_pd_cml;
u8 cfg_pd_driver;
u8 cfg_rx_reg_pu;
u8 cfg_d_cdr_pd;
u8 cfg_pd_sq;
u8 cfg_rxdet_en;
u8 cfg_rxdet_str;
u8 r_multi_lane_mode;
u8 cfg_en_adv;
u8 cfg_en_main;
u8 cfg_en_dly;
u8 cfg_tap_adv_3_0;
u8 cfg_tap_main;
u8 cfg_tap_dly_4_0;
u8 cfg_vga_ctrl_3_0;
u8 cfg_vga_cp_2_0;
u8 cfg_eq_res_3_0;
u8 cfg_eq_r_byp;
u8 cfg_eq_c_force_3_0;
u8 cfg_en_dfedig;
u8 cfg_sum_setcm_en;
u8 cfg_en_preemph;
u8 cfg_itx_ippreemp_base_1_0;
u8 cfg_itx_ipdriver_base_2_0;
u8 cfg_ibias_tune_reserve_5_0;
u8 cfg_txswing_half;
u8 cfg_dis_2nd_order;
u8 cfg_rx_ssc_lh;
u8 cfg_pi_floop_steps_1_0;
u8 cfg_pi_ext_dac_23_16;
u8 cfg_pi_ext_dac_15_8;
u8 cfg_iscan_ext_dac_7_0;
u8 cfg_cdr_kf_gen1_2_0;
u8 cfg_cdr_kf_gen2_2_0;
u8 cfg_cdr_kf_gen3_2_0;
u8 cfg_cdr_kf_gen4_2_0;
u8 r_cdr_m_gen1_7_0;
u8 cfg_pi_bw_gen1_3_0;
u8 cfg_pi_bw_gen2;
u8 cfg_pi_bw_gen3;
u8 cfg_pi_bw_gen4;
u8 cfg_pi_ext_dac_7_0;
u8 cfg_pi_steps;
u8 cfg_mp_max_3_0;
u8 cfg_rstn_dfedig;
u8 cfg_alos_thr_3_0;
u8 cfg_predrv_slewrate_1_0;
u8 cfg_itx_ipcml_base_1_0;
u8 cfg_ip_pre_base_1_0;
u8 r_cdr_m_gen2_7_0;
u8 r_cdr_m_gen3_7_0;
u8 r_cdr_m_gen4_7_0;
u8 r_en_auto_cdr_rstn;
u8 cfg_oscal_afe;
u8 cfg_pd_osdac_afe;
u8 cfg_resetb_oscal_afe[2];
u8 cfg_center_spreading;
u8 cfg_m_cnt_maxval_4_0;
u8 cfg_ncnt_maxval_7_0;
u8 cfg_ncnt_maxval_10_8;
u8 cfg_ssc_en;
u8 cfg_tx2rx_lp_en;
u8 cfg_txlb_en;
u8 cfg_rx2tx_lp_en;
u8 cfg_rxlb_en;
u8 r_tx_pol_inv;
u8 r_rx_pol_inv;
u8 fx_100;
};
static struct sparx5_sd25g28_media_preset media_presets_25g[] = {
{ /* ETH_MEDIA_DEFAULT */
.cfg_en_adv = 0,
.cfg_en_main = 1,
.cfg_en_dly = 0,
.cfg_tap_adv_3_0 = 0,
.cfg_tap_main = 1,
.cfg_tap_dly_4_0 = 0,
.cfg_eq_c_force_3_0 = 0xf,
.cfg_vga_ctrl_byp_4_0 = 4,
.cfg_eq_r_force_3_0 = 12,
.cfg_alos_thr_2_0 = 7,
},
{ /* ETH_MEDIA_SR */
.cfg_en_adv = 1,
.cfg_en_main = 1,
.cfg_en_dly = 1,
.cfg_tap_adv_3_0 = 0,
.cfg_tap_main = 1,
.cfg_tap_dly_4_0 = 0x10,
.cfg_eq_c_force_3_0 = 0xf,
.cfg_vga_ctrl_byp_4_0 = 8,
.cfg_eq_r_force_3_0 = 4,
.cfg_alos_thr_2_0 = 0,
},
{ /* ETH_MEDIA_DAC */
.cfg_en_adv = 0,
.cfg_en_main = 1,
.cfg_en_dly = 0,
.cfg_tap_adv_3_0 = 0,
.cfg_tap_main = 1,
.cfg_tap_dly_4_0 = 0,
.cfg_eq_c_force_3_0 = 0xf,
.cfg_vga_ctrl_byp_4_0 = 8,
.cfg_eq_r_force_3_0 = 0xc,
.cfg_alos_thr_2_0 = 0,
},
};
static struct sparx5_sd25g28_mode_preset mode_presets_25g[] = {
{ /* SPX5_SD25G28_MODE_PRESET_25000 */
.bitwidth = 40,
.tx_pre_div = 0,
.fifo_ck_div = 0,
.pre_divsel = 1,
.vco_div_mode = 0,
.sel_div = 15,
.ck_bitwidth = 3,
.subrate = 0,
.com_txcal_en = 0,
.com_tx_reserve_msb = (0x26 << 1),
.com_tx_reserve_lsb = 0xf0,
.cfg_itx_ipcml_base = 0,
.tx_reserve_msb = 0xcc,
.tx_reserve_lsb = 0xfe,
.bw = 3,
.rxterm = 0,
.dfe_enable = 1,
.dfe_tap = 0x1f,
.txmargin = 1,
.cfg_ctle_rstn = 1,
.r_dfe_rstn = 1,
.cfg_pi_bw_3_0 = 0,
.tx_tap_dly = 8,
.tx_tap_adv = 0xc,
},
{ /* SPX5_SD25G28_MODE_PRESET_10000 */
.bitwidth = 64,
.tx_pre_div = 0,
.fifo_ck_div = 2,
.pre_divsel = 0,
.vco_div_mode = 1,
.sel_div = 9,
.ck_bitwidth = 0,
.subrate = 0,
.com_txcal_en = 1,
.com_tx_reserve_msb = (0x20 << 1),
.com_tx_reserve_lsb = 0x40,
.cfg_itx_ipcml_base = 0,
.tx_reserve_msb = 0x4c,
.tx_reserve_lsb = 0x44,
.bw = 3,
.cfg_pi_bw_3_0 = 0,
.rxterm = 3,
.dfe_enable = 1,
.dfe_tap = 0x1f,
.txmargin = 0,
.cfg_ctle_rstn = 1,
.r_dfe_rstn = 1,
.tx_tap_dly = 0,
.tx_tap_adv = 0,
},
{ /* SPX5_SD25G28_MODE_PRESET_5000 */
.bitwidth = 64,
.tx_pre_div = 0,
.fifo_ck_div = 2,
.pre_divsel = 0,
.vco_div_mode = 2,
.sel_div = 9,
.ck_bitwidth = 0,
.subrate = 0,
.com_txcal_en = 1,
.com_tx_reserve_msb = (0x20 << 1),
.com_tx_reserve_lsb = 0,
.cfg_itx_ipcml_base = 0,
.tx_reserve_msb = 0xe,
.tx_reserve_lsb = 0x80,
.bw = 0,
.rxterm = 0,
.cfg_pi_bw_3_0 = 6,
.dfe_enable = 0,
.dfe_tap = 0,
.tx_tap_dly = 0,
.tx_tap_adv = 0,
},
{ /* SPX5_SD25G28_MODE_PRESET_SD_2G5 */
.bitwidth = 10,
.tx_pre_div = 0,
.fifo_ck_div = 0,
.pre_divsel = 0,
.vco_div_mode = 1,
.sel_div = 6,
.ck_bitwidth = 3,
.subrate = 2,
.com_txcal_en = 1,
.com_tx_reserve_msb = (0x26 << 1),
.com_tx_reserve_lsb = (0xf << 4),
.cfg_itx_ipcml_base = 2,
.tx_reserve_msb = 0x8,
.tx_reserve_lsb = 0x8a,
.bw = 0,
.cfg_pi_bw_3_0 = 0,
.rxterm = (1 << 2),
.dfe_enable = 0,
.dfe_tap = 0,
.tx_tap_dly = 0,
.tx_tap_adv = 0,
},
{ /* SPX5_SD25G28_MODE_PRESET_1000BASEX */
.bitwidth = 10,
.tx_pre_div = 0,
.fifo_ck_div = 1,
.pre_divsel = 0,
.vco_div_mode = 1,
.sel_div = 8,
.ck_bitwidth = 3,
.subrate = 3,
.com_txcal_en = 1,
.com_tx_reserve_msb = (0x26 << 1),
.com_tx_reserve_lsb = 0xf0,
.cfg_itx_ipcml_base = 0,
.tx_reserve_msb = 0x8,
.tx_reserve_lsb = 0xce,
.bw = 0,
.rxterm = 0,
.cfg_pi_bw_3_0 = 0,
.dfe_enable = 0,
.dfe_tap = 0,
.tx_tap_dly = 0,
.tx_tap_adv = 0,
},
};
static struct sparx5_sd10g28_media_preset media_presets_10g[] = {
{ /* ETH_MEDIA_DEFAULT */
.cfg_en_adv = 0,
.cfg_en_main = 1,
.cfg_en_dly = 0,
.cfg_tap_adv_3_0 = 0,
.cfg_tap_main = 1,
.cfg_tap_dly_4_0 = 0,
.cfg_vga_ctrl_3_0 = 5,
.cfg_vga_cp_2_0 = 0,
.cfg_eq_res_3_0 = 0xa,
.cfg_eq_r_byp = 1,
.cfg_eq_c_force_3_0 = 0x8,
.cfg_alos_thr_3_0 = 0x3,
},
{ /* ETH_MEDIA_SR */
.cfg_en_adv = 1,
.cfg_en_main = 1,
.cfg_en_dly = 1,
.cfg_tap_adv_3_0 = 0,
.cfg_tap_main = 1,
.cfg_tap_dly_4_0 = 0xc,
.cfg_vga_ctrl_3_0 = 0xa,
.cfg_vga_cp_2_0 = 0x4,
.cfg_eq_res_3_0 = 0xa,
.cfg_eq_r_byp = 1,
.cfg_eq_c_force_3_0 = 0xF,
.cfg_alos_thr_3_0 = 0x3,
},
{ /* ETH_MEDIA_DAC */
.cfg_en_adv = 1,
.cfg_en_main = 1,
.cfg_en_dly = 1,
.cfg_tap_adv_3_0 = 12,
.cfg_tap_main = 1,
.cfg_tap_dly_4_0 = 8,
.cfg_vga_ctrl_3_0 = 0xa,
.cfg_vga_cp_2_0 = 4,
.cfg_eq_res_3_0 = 0xa,
.cfg_eq_r_byp = 1,
.cfg_eq_c_force_3_0 = 0xf,
.cfg_alos_thr_3_0 = 0x0,
}
};
static struct sparx5_sd10g28_mode_preset mode_presets_10g[] = {
{ /* SPX5_SD10G28_MODE_PRESET_10000 */
.bwidth = 64,
.cmu_sel = SPX5_SD10G28_CMU_MAIN,
.rate = 0x0,
.dfe_enable = 1,
.dfe_tap = 0x1f,
.pi_bw_gen1 = 0x0,
.duty_cycle = 0x2,
},
{ /* SPX5_SD10G28_MODE_PRESET_SFI_5000_6G */
.bwidth = 16,
.cmu_sel = SPX5_SD10G28_CMU_MAIN,
.rate = 0x1,
.dfe_enable = 0,
.dfe_tap = 0,
.pi_bw_gen1 = 0x5,
.duty_cycle = 0x0,
},
{ /* SPX5_SD10G28_MODE_PRESET_SFI_5000_10G */
.bwidth = 64,
.cmu_sel = SPX5_SD10G28_CMU_MAIN,
.rate = 0x1,
.dfe_enable = 0,
.dfe_tap = 0,
.pi_bw_gen1 = 0x5,
.duty_cycle = 0x0,
},
{ /* SPX5_SD10G28_MODE_PRESET_QSGMII */
.bwidth = 20,
.cmu_sel = SPX5_SD10G28_CMU_AUX1,
.rate = 0x1,
.dfe_enable = 0,
.dfe_tap = 0,
.pi_bw_gen1 = 0x5,
.duty_cycle = 0x0,
},
{ /* SPX5_SD10G28_MODE_PRESET_SD_2G5 */
.bwidth = 10,
.cmu_sel = SPX5_SD10G28_CMU_AUX2,
.rate = 0x2,
.dfe_enable = 0,
.dfe_tap = 0,
.pi_bw_gen1 = 0x7,
.duty_cycle = 0x0,
},
{ /* SPX5_SD10G28_MODE_PRESET_1000BASEX */
.bwidth = 10,
.cmu_sel = SPX5_SD10G28_CMU_AUX1,
.rate = 0x3,
.dfe_enable = 0,
.dfe_tap = 0,
.pi_bw_gen1 = 0x7,
.duty_cycle = 0x0,
},
};
/* map from SD25G28 interface width to configuration value */
static u8 sd25g28_get_iw_setting(struct device *dev, const u8 interface_width)
{
switch (interface_width) {
case 10: return 0;
case 16: return 1;
case 32: return 3;
case 40: return 4;
case 64: return 5;
default:
dev_err(dev, "%s: Illegal value %d for interface width\n",
__func__, interface_width);
}
return 0;
}
/* map from SD10G28 interface width to configuration value */
static u8 sd10g28_get_iw_setting(struct device *dev, const u8 interface_width)
{
switch (interface_width) {
case 10: return 0;
case 16: return 1;
case 20: return 2;
case 32: return 3;
case 40: return 4;
case 64: return 7;
default:
dev_err(dev, "%s: Illegal value %d for interface width\n", __func__,
interface_width);
return 0;
}
}
static int sparx5_sd10g25_get_mode_preset(struct sparx5_serdes_macro *macro,
struct sparx5_sd25g28_mode_preset *mode)
{
switch (macro->serdesmode) {
case SPX5_SD_MODE_SFI:
if (macro->speed == SPEED_25000)
*mode = mode_presets_25g[SPX5_SD25G28_MODE_PRESET_25000];
else if (macro->speed == SPEED_10000)
*mode = mode_presets_25g[SPX5_SD25G28_MODE_PRESET_10000];
else if (macro->speed == SPEED_5000)
*mode = mode_presets_25g[SPX5_SD25G28_MODE_PRESET_5000];
break;
case SPX5_SD_MODE_2G5:
*mode = mode_presets_25g[SPX5_SD25G28_MODE_PRESET_SD_2G5];
break;
case SPX5_SD_MODE_1000BASEX:
*mode = mode_presets_25g[SPX5_SD25G28_MODE_PRESET_1000BASEX];
break;
case SPX5_SD_MODE_100FX:
/* Not supported */
return -EINVAL;
default:
*mode = mode_presets_25g[SPX5_SD25G28_MODE_PRESET_25000];
break;
}
return 0;
}
static int sparx5_sd10g28_get_mode_preset(struct sparx5_serdes_macro *macro,
struct sparx5_sd10g28_mode_preset *mode,
struct sparx5_sd10g28_args *args)
{
switch (macro->serdesmode) {
case SPX5_SD_MODE_SFI:
if (macro->speed == SPEED_10000) {
*mode = mode_presets_10g[SPX5_SD10G28_MODE_PRESET_10000];
} else if (macro->speed == SPEED_5000) {
if (args->is_6g)
*mode = mode_presets_10g[SPX5_SD10G28_MODE_PRESET_SFI_5000_6G];
else
*mode = mode_presets_10g[SPX5_SD10G28_MODE_PRESET_SFI_5000_10G];
} else {
dev_err(macro->priv->dev, "%s: Illegal speed: %02u, sidx: %02u, mode (%u)",
__func__, macro->speed, macro->sidx,
macro->serdesmode);
return -EINVAL;
}
break;
case SPX5_SD_MODE_QSGMII:
*mode = mode_presets_10g[SPX5_SD10G28_MODE_PRESET_QSGMII];
break;
case SPX5_SD_MODE_2G5:
*mode = mode_presets_10g[SPX5_SD10G28_MODE_PRESET_SD_2G5];
break;
case SPX5_SD_MODE_100FX:
case SPX5_SD_MODE_1000BASEX:
*mode = mode_presets_10g[SPX5_SD10G28_MODE_PRESET_1000BASEX];
break;
default:
*mode = mode_presets_10g[SPX5_SD10G28_MODE_PRESET_10000];
break;
}
return 0;
}
static void sparx5_sd25g28_get_params(struct sparx5_serdes_macro *macro,
struct sparx5_sd25g28_media_preset *media,
struct sparx5_sd25g28_mode_preset *mode,
struct sparx5_sd25g28_args *args,
struct sparx5_sd25g28_params *params)
{
u8 iw = sd25g28_get_iw_setting(macro->priv->dev, mode->bitwidth);
struct sparx5_sd25g28_params init = {
.r_d_width_ctrl_2_0 = iw,
.r_txfifo_ck_div_pmad_2_0 = mode->fifo_ck_div,
.r_rxfifo_ck_div_pmad_2_0 = mode->fifo_ck_div,
.cfg_vco_div_mode_1_0 = mode->vco_div_mode,
.cfg_pre_divsel_1_0 = mode->pre_divsel,
.cfg_sel_div_3_0 = mode->sel_div,
.cfg_vco_start_code_3_0 = 0,
.cfg_pma_tx_ck_bitwidth_2_0 = mode->ck_bitwidth,
.cfg_tx_prediv_1_0 = mode->tx_pre_div,
.cfg_rxdiv_sel_2_0 = mode->ck_bitwidth,
.cfg_tx_subrate_2_0 = mode->subrate,
.cfg_rx_subrate_2_0 = mode->subrate,
.r_multi_lane_mode = 0,
.cfg_cdrck_en = 1,
.cfg_dfeck_en = mode->dfe_enable,
.cfg_dfe_pd = mode->dfe_enable == 1 ? 0 : 1,
.cfg_dfedmx_pd = 1,
.cfg_dfetap_en_5_1 = mode->dfe_tap,
.cfg_dmux_pd = 0,
.cfg_dmux_clk_pd = 1,
.cfg_erramp_pd = mode->dfe_enable == 1 ? 0 : 1,
.cfg_pi_DFE_en = mode->dfe_enable,
.cfg_pi_en = 1,
.cfg_pd_ctle = 0,
.cfg_summer_en = 1,
.cfg_pmad_ck_pd = 0,
.cfg_pd_clk = 0,
.cfg_pd_cml = 0,
.cfg_pd_driver = 0,
.cfg_rx_reg_pu = 1,
.cfg_pd_rms_det = 1,
.cfg_dcdr_pd = 0,
.cfg_ecdr_pd = 1,
.cfg_pd_sq = 1,
.cfg_itx_ipdriver_base_2_0 = mode->txmargin,
.cfg_tap_dly_4_0 = media->cfg_tap_dly_4_0,
.cfg_tap_main = media->cfg_tap_main,
.cfg_en_main = media->cfg_en_main,
.cfg_tap_adv_3_0 = media->cfg_tap_adv_3_0,
.cfg_en_adv = media->cfg_en_adv,
.cfg_en_dly = media->cfg_en_dly,
.cfg_iscan_en = 0,
.l1_pcs_en_fast_iscan = 0,
.l0_cfg_bw_1_0 = 0,
.cfg_en_dummy = 0,
.cfg_pll_reserve_3_0 = args->com_pll_reserve,
.l0_cfg_txcal_en = mode->com_txcal_en,
.l0_cfg_tx_reserve_15_8 = mode->com_tx_reserve_msb,
.l0_cfg_tx_reserve_7_0 = mode->com_tx_reserve_lsb,
.cfg_tx_reserve_15_8 = mode->tx_reserve_msb,
.cfg_tx_reserve_7_0 = mode->tx_reserve_lsb,
.cfg_bw_1_0 = mode->bw,
.cfg_txcal_man_en = 1,
.cfg_phase_man_4_0 = 0,
.cfg_quad_man_1_0 = 0,
.cfg_txcal_shift_code_5_0 = 2,
.cfg_txcal_valid_sel_3_0 = 4,
.cfg_txcal_en = 0,
.cfg_cdr_kf_2_0 = 1,
.cfg_cdr_m_7_0 = 6,
.cfg_pi_bw_3_0 = mode->cfg_pi_bw_3_0,
.cfg_pi_steps_1_0 = 0,
.cfg_dis_2ndorder = 1,
.cfg_ctle_rstn = mode->cfg_ctle_rstn,
.r_dfe_rstn = mode->r_dfe_rstn,
.cfg_alos_thr_2_0 = media->cfg_alos_thr_2_0,
.cfg_itx_ipcml_base_1_0 = mode->cfg_itx_ipcml_base,
.cfg_rx_reserve_7_0 = 0xbf,
.cfg_rx_reserve_15_8 = 0x61,
.cfg_rxterm_2_0 = mode->rxterm,
.cfg_fom_selm = 0,
.cfg_rx_sp_ctle_1_0 = 0,
.cfg_isel_ctle_1_0 = 0,
.cfg_vga_ctrl_byp_4_0 = media->cfg_vga_ctrl_byp_4_0,
.cfg_vga_byp = 1,
.cfg_agc_adpt_byp = 1,
.cfg_eqr_byp = 1,
.cfg_eqr_force_3_0 = media->cfg_eq_r_force_3_0,
.cfg_eqc_force_3_0 = media->cfg_eq_c_force_3_0,
.cfg_sum_setcm_en = 1,
.cfg_pi_dfe_en = 1,
.cfg_init_pos_iscan_6_0 = 6,
.cfg_init_pos_ipi_6_0 = 9,
.cfg_dfedig_m_2_0 = 6,
.cfg_en_dfedig = mode->dfe_enable,
.r_d_width_ctrl_from_hwt = 0,
.r_reg_manual = 1,
.reg_rst = args->reg_rst,
.cfg_jc_byp = 1,
.cfg_common_reserve_7_0 = 1,
.cfg_pll_lol_set = 1,
.cfg_tx2rx_lp_en = 0,
.cfg_txlb_en = 0,
.cfg_rx2tx_lp_en = 0,
.cfg_rxlb_en = 0,
.r_tx_pol_inv = args->txinvert,
.r_rx_pol_inv = args->rxinvert,
};
*params = init;
}
static void sparx5_sd10g28_get_params(struct sparx5_serdes_macro *macro,
struct sparx5_sd10g28_media_preset *media,
struct sparx5_sd10g28_mode_preset *mode,
struct sparx5_sd10g28_args *args,
struct sparx5_sd10g28_params *params)
{
u8 iw = sd10g28_get_iw_setting(macro->priv->dev, mode->bwidth);
struct sparx5_sd10g28_params init = {
.skip_cmu_cfg = args->skip_cmu_cfg,
.is_6g = args->is_6g,
.cmu_sel = mode->cmu_sel,
.cfg_lane_reserve_7_0 = (mode->cmu_sel % 2) << 6,
.cfg_ssc_rtl_clk_sel = (mode->cmu_sel / 2),
.cfg_lane_reserve_15_8 = mode->duty_cycle,
.cfg_txrate_1_0 = mode->rate,
.cfg_rxrate_1_0 = mode->rate,
.fx_100 = macro->serdesmode == SPX5_SD_MODE_100FX,
.r_d_width_ctrl_2_0 = iw,
.cfg_pma_tx_ck_bitwidth_2_0 = iw,
.cfg_rxdiv_sel_2_0 = iw,
.r_pcs2pma_phymode_4_0 = 0,
.cfg_lane_id_2_0 = 0,
.cfg_cdrck_en = 1,
.cfg_dfeck_en = mode->dfe_enable,
.cfg_dfe_pd = (mode->dfe_enable == 1) ? 0 : 1,
.cfg_dfetap_en_5_1 = mode->dfe_tap,
.cfg_erramp_pd = (mode->dfe_enable == 1) ? 0 : 1,
.cfg_pi_DFE_en = mode->dfe_enable,
.cfg_pi_en = 1,
.cfg_pd_ctle = 0,
.cfg_summer_en = 1,
.cfg_pd_rx_cktree = 0,
.cfg_pd_clk = 0,
.cfg_pd_cml = 0,
.cfg_pd_driver = 0,
.cfg_rx_reg_pu = 1,
.cfg_d_cdr_pd = 0,
.cfg_pd_sq = mode->dfe_enable,
.cfg_rxdet_en = 0,
.cfg_rxdet_str = 0,
.r_multi_lane_mode = 0,
.cfg_en_adv = media->cfg_en_adv,
.cfg_en_main = 1,
.cfg_en_dly = media->cfg_en_dly,
.cfg_tap_adv_3_0 = media->cfg_tap_adv_3_0,
.cfg_tap_main = media->cfg_tap_main,
.cfg_tap_dly_4_0 = media->cfg_tap_dly_4_0,
.cfg_vga_ctrl_3_0 = media->cfg_vga_ctrl_3_0,
.cfg_vga_cp_2_0 = media->cfg_vga_cp_2_0,
.cfg_eq_res_3_0 = media->cfg_eq_res_3_0,
.cfg_eq_r_byp = media->cfg_eq_r_byp,
.cfg_eq_c_force_3_0 = media->cfg_eq_c_force_3_0,
.cfg_en_dfedig = mode->dfe_enable,
.cfg_sum_setcm_en = 1,
.cfg_en_preemph = 0,
.cfg_itx_ippreemp_base_1_0 = 0,
.cfg_itx_ipdriver_base_2_0 = (args->txswing >> 6),
.cfg_ibias_tune_reserve_5_0 = (args->txswing & 63),
.cfg_txswing_half = (args->txmargin),
.cfg_dis_2nd_order = 0x1,
.cfg_rx_ssc_lh = 0x0,
.cfg_pi_floop_steps_1_0 = 0x0,
.cfg_pi_ext_dac_23_16 = (1 << 5),
.cfg_pi_ext_dac_15_8 = (0 << 6),
.cfg_iscan_ext_dac_7_0 = (1 << 7) + 9,
.cfg_cdr_kf_gen1_2_0 = 1,
.cfg_cdr_kf_gen2_2_0 = 1,
.cfg_cdr_kf_gen3_2_0 = 1,
.cfg_cdr_kf_gen4_2_0 = 1,
.r_cdr_m_gen1_7_0 = 4,
.cfg_pi_bw_gen1_3_0 = mode->pi_bw_gen1,
.cfg_pi_bw_gen2 = mode->pi_bw_gen1,
.cfg_pi_bw_gen3 = mode->pi_bw_gen1,
.cfg_pi_bw_gen4 = mode->pi_bw_gen1,
.cfg_pi_ext_dac_7_0 = 3,
.cfg_pi_steps = 0,
.cfg_mp_max_3_0 = 1,
.cfg_rstn_dfedig = mode->dfe_enable,
.cfg_alos_thr_3_0 = media->cfg_alos_thr_3_0,
.cfg_predrv_slewrate_1_0 = 3,
.cfg_itx_ipcml_base_1_0 = 0,
.cfg_ip_pre_base_1_0 = 0,
.r_cdr_m_gen2_7_0 = 2,
.r_cdr_m_gen3_7_0 = 2,
.r_cdr_m_gen4_7_0 = 2,
.r_en_auto_cdr_rstn = 0,
.cfg_oscal_afe = 1,
.cfg_pd_osdac_afe = 0,
.cfg_resetb_oscal_afe[0] = 0,
.cfg_resetb_oscal_afe[1] = 1,
.cfg_center_spreading = 0,
.cfg_m_cnt_maxval_4_0 = 15,
.cfg_ncnt_maxval_7_0 = 32,
.cfg_ncnt_maxval_10_8 = 6,
.cfg_ssc_en = 1,
.cfg_tx2rx_lp_en = 0,
.cfg_txlb_en = 0,
.cfg_rx2tx_lp_en = 0,
.cfg_rxlb_en = 0,
.r_tx_pol_inv = args->txinvert,
.r_rx_pol_inv = args->rxinvert,
};
*params = init;
}
static void sparx5_sd25g28_reset(void __iomem *regs[],
struct sparx5_sd25g28_params *params,
u32 sd_index)
{
if (params->reg_rst == 1) {
sdx5_rmw_addr(SD_LANE_25G_SD_LANE_CFG_EXT_CFG_RST_SET(1),
SD_LANE_25G_SD_LANE_CFG_EXT_CFG_RST,
sdx5_addr(regs, SD_LANE_25G_SD_LANE_CFG(sd_index)));
usleep_range(1000, 2000);
sdx5_rmw_addr(SD_LANE_25G_SD_LANE_CFG_EXT_CFG_RST_SET(0),
SD_LANE_25G_SD_LANE_CFG_EXT_CFG_RST,
sdx5_addr(regs, SD_LANE_25G_SD_LANE_CFG(sd_index)));
}
}
static int sparx5_sd25g28_apply_params(struct sparx5_serdes_macro *macro,
struct sparx5_sd25g28_params *params)
{
struct sparx5_serdes_private *priv = macro->priv;
void __iomem **regs = priv->regs;
struct device *dev = priv->dev;
u32 sd_index = macro->stpidx;
u32 value;
sdx5_rmw(SD_LANE_25G_SD_LANE_CFG_MACRO_RST_SET(1),
SD_LANE_25G_SD_LANE_CFG_MACRO_RST,
priv,
SD_LANE_25G_SD_LANE_CFG(sd_index));
sdx5_rmw(SD25G_LANE_CMU_FF_REGISTER_TABLE_INDEX_SET(0xFF),
SD25G_LANE_CMU_FF_REGISTER_TABLE_INDEX,
priv,
SD25G_LANE_CMU_FF(sd_index));
sdx5_rmw(SD25G_LANE_CMU_1A_R_DWIDTHCTRL_FROM_HWT_SET
(params->r_d_width_ctrl_from_hwt) |
SD25G_LANE_CMU_1A_R_REG_MANUAL_SET(params->r_reg_manual),
SD25G_LANE_CMU_1A_R_DWIDTHCTRL_FROM_HWT |
SD25G_LANE_CMU_1A_R_REG_MANUAL,
priv,
SD25G_LANE_CMU_1A(sd_index));
sdx5_rmw(SD25G_LANE_CMU_31_CFG_COMMON_RESERVE_7_0_SET
(params->cfg_common_reserve_7_0),
SD25G_LANE_CMU_31_CFG_COMMON_RESERVE_7_0,
priv,
SD25G_LANE_CMU_31(sd_index));
sdx5_rmw(SD25G_LANE_CMU_09_CFG_EN_DUMMY_SET(params->cfg_en_dummy),
SD25G_LANE_CMU_09_CFG_EN_DUMMY,
priv,
SD25G_LANE_CMU_09(sd_index));
sdx5_rmw(SD25G_LANE_CMU_13_CFG_PLL_RESERVE_3_0_SET
(params->cfg_pll_reserve_3_0),
SD25G_LANE_CMU_13_CFG_PLL_RESERVE_3_0,
priv,
SD25G_LANE_CMU_13(sd_index));
sdx5_rmw(SD25G_LANE_CMU_40_L0_CFG_TXCAL_EN_SET(params->l0_cfg_txcal_en),
SD25G_LANE_CMU_40_L0_CFG_TXCAL_EN,
priv,
SD25G_LANE_CMU_40(sd_index));
sdx5_rmw(SD25G_LANE_CMU_46_L0_CFG_TX_RESERVE_15_8_SET
(params->l0_cfg_tx_reserve_15_8),
SD25G_LANE_CMU_46_L0_CFG_TX_RESERVE_15_8,
priv,
SD25G_LANE_CMU_46(sd_index));
sdx5_rmw(SD25G_LANE_CMU_45_L0_CFG_TX_RESERVE_7_0_SET
(params->l0_cfg_tx_reserve_7_0),
SD25G_LANE_CMU_45_L0_CFG_TX_RESERVE_7_0,
priv,
SD25G_LANE_CMU_45(sd_index));
sdx5_rmw(SD25G_LANE_CMU_0B_CFG_VCO_CAL_RESETN_SET(0),
SD25G_LANE_CMU_0B_CFG_VCO_CAL_RESETN,
priv,
SD25G_LANE_CMU_0B(sd_index));
sdx5_rmw(SD25G_LANE_CMU_0B_CFG_VCO_CAL_RESETN_SET(1),
SD25G_LANE_CMU_0B_CFG_VCO_CAL_RESETN,
priv,
SD25G_LANE_CMU_0B(sd_index));
sdx5_rmw(SD25G_LANE_CMU_19_R_CK_RESETB_SET(0),
SD25G_LANE_CMU_19_R_CK_RESETB,
priv,
SD25G_LANE_CMU_19(sd_index));
sdx5_rmw(SD25G_LANE_CMU_19_R_CK_RESETB_SET(1),
SD25G_LANE_CMU_19_R_CK_RESETB,
priv,
SD25G_LANE_CMU_19(sd_index));
sdx5_rmw(SD25G_LANE_CMU_18_R_PLL_RSTN_SET(0),
SD25G_LANE_CMU_18_R_PLL_RSTN,
priv,
SD25G_LANE_CMU_18(sd_index));
sdx5_rmw(SD25G_LANE_CMU_18_R_PLL_RSTN_SET(1),
SD25G_LANE_CMU_18_R_PLL_RSTN,
priv,
SD25G_LANE_CMU_18(sd_index));
sdx5_rmw(SD25G_LANE_CMU_1A_R_DWIDTHCTRL_2_0_SET(params->r_d_width_ctrl_2_0),
SD25G_LANE_CMU_1A_R_DWIDTHCTRL_2_0,
priv,
SD25G_LANE_CMU_1A(sd_index));
sdx5_rmw(SD25G_LANE_CMU_30_R_TXFIFO_CK_DIV_PMAD_2_0_SET
(params->r_txfifo_ck_div_pmad_2_0) |
SD25G_LANE_CMU_30_R_RXFIFO_CK_DIV_PMAD_2_0_SET
(params->r_rxfifo_ck_div_pmad_2_0),
SD25G_LANE_CMU_30_R_TXFIFO_CK_DIV_PMAD_2_0 |
SD25G_LANE_CMU_30_R_RXFIFO_CK_DIV_PMAD_2_0,
priv,
SD25G_LANE_CMU_30(sd_index));
sdx5_rmw(SD25G_LANE_CMU_0C_CFG_PLL_LOL_SET_SET(params->cfg_pll_lol_set) |
SD25G_LANE_CMU_0C_CFG_VCO_DIV_MODE_1_0_SET
(params->cfg_vco_div_mode_1_0),
SD25G_LANE_CMU_0C_CFG_PLL_LOL_SET |
SD25G_LANE_CMU_0C_CFG_VCO_DIV_MODE_1_0,
priv,
SD25G_LANE_CMU_0C(sd_index));
sdx5_rmw(SD25G_LANE_CMU_0D_CFG_PRE_DIVSEL_1_0_SET
(params->cfg_pre_divsel_1_0),
SD25G_LANE_CMU_0D_CFG_PRE_DIVSEL_1_0,
priv,
SD25G_LANE_CMU_0D(sd_index));
sdx5_rmw(SD25G_LANE_CMU_0E_CFG_SEL_DIV_3_0_SET(params->cfg_sel_div_3_0),
SD25G_LANE_CMU_0E_CFG_SEL_DIV_3_0,
priv,
SD25G_LANE_CMU_0E(sd_index));
sdx5_rmw(SD25G_LANE_CMU_FF_REGISTER_TABLE_INDEX_SET(0x00),
SD25G_LANE_CMU_FF_REGISTER_TABLE_INDEX,
priv,
SD25G_LANE_CMU_FF(sd_index));
sdx5_rmw(SD25G_LANE_LANE_0C_LN_CFG_PMA_TX_CK_BITWIDTH_2_0_SET
(params->cfg_pma_tx_ck_bitwidth_2_0),
SD25G_LANE_LANE_0C_LN_CFG_PMA_TX_CK_BITWIDTH_2_0,
priv,
SD25G_LANE_LANE_0C(sd_index));
sdx5_rmw(SD25G_LANE_LANE_01_LN_CFG_TX_PREDIV_1_0_SET
(params->cfg_tx_prediv_1_0),
SD25G_LANE_LANE_01_LN_CFG_TX_PREDIV_1_0,
priv,
SD25G_LANE_LANE_01(sd_index));
sdx5_rmw(SD25G_LANE_LANE_18_LN_CFG_RXDIV_SEL_2_0_SET
(params->cfg_rxdiv_sel_2_0),
SD25G_LANE_LANE_18_LN_CFG_RXDIV_SEL_2_0,
priv,
SD25G_LANE_LANE_18(sd_index));
sdx5_rmw(SD25G_LANE_LANE_2C_LN_CFG_TX_SUBRATE_2_0_SET
(params->cfg_tx_subrate_2_0),
SD25G_LANE_LANE_2C_LN_CFG_TX_SUBRATE_2_0,
priv,
SD25G_LANE_LANE_2C(sd_index));
sdx5_rmw(SD25G_LANE_LANE_28_LN_CFG_RX_SUBRATE_2_0_SET
(params->cfg_rx_subrate_2_0),
SD25G_LANE_LANE_28_LN_CFG_RX_SUBRATE_2_0,
priv,
SD25G_LANE_LANE_28(sd_index));
sdx5_rmw(SD25G_LANE_LANE_18_LN_CFG_CDRCK_EN_SET(params->cfg_cdrck_en),
SD25G_LANE_LANE_18_LN_CFG_CDRCK_EN,
priv,
SD25G_LANE_LANE_18(sd_index));
sdx5_rmw(SD25G_LANE_LANE_0F_LN_CFG_DFETAP_EN_5_1_SET
(params->cfg_dfetap_en_5_1),
SD25G_LANE_LANE_0F_LN_CFG_DFETAP_EN_5_1,
priv,
SD25G_LANE_LANE_0F(sd_index));
sdx5_rmw(SD25G_LANE_LANE_18_LN_CFG_ERRAMP_PD_SET(params->cfg_erramp_pd),
SD25G_LANE_LANE_18_LN_CFG_ERRAMP_PD,
priv,
SD25G_LANE_LANE_18(sd_index));
sdx5_rmw(SD25G_LANE_LANE_1D_LN_CFG_PI_DFE_EN_SET(params->cfg_pi_dfe_en),
SD25G_LANE_LANE_1D_LN_CFG_PI_DFE_EN,
priv,
SD25G_LANE_LANE_1D(sd_index));
sdx5_rmw(SD25G_LANE_LANE_19_LN_CFG_ECDR_PD_SET(params->cfg_ecdr_pd),
SD25G_LANE_LANE_19_LN_CFG_ECDR_PD,
priv,
SD25G_LANE_LANE_19(sd_index));
sdx5_rmw(SD25G_LANE_LANE_01_LN_CFG_ITX_IPDRIVER_BASE_2_0_SET
(params->cfg_itx_ipdriver_base_2_0),
SD25G_LANE_LANE_01_LN_CFG_ITX_IPDRIVER_BASE_2_0,
priv,
SD25G_LANE_LANE_01(sd_index));
sdx5_rmw(SD25G_LANE_LANE_03_LN_CFG_TAP_DLY_4_0_SET(params->cfg_tap_dly_4_0),
SD25G_LANE_LANE_03_LN_CFG_TAP_DLY_4_0,
priv,
SD25G_LANE_LANE_03(sd_index));
sdx5_rmw(SD25G_LANE_LANE_06_LN_CFG_TAP_ADV_3_0_SET(params->cfg_tap_adv_3_0),
SD25G_LANE_LANE_06_LN_CFG_TAP_ADV_3_0,
priv,
SD25G_LANE_LANE_06(sd_index));
sdx5_rmw(SD25G_LANE_LANE_07_LN_CFG_EN_ADV_SET(params->cfg_en_adv) |
SD25G_LANE_LANE_07_LN_CFG_EN_DLY_SET(params->cfg_en_dly),
SD25G_LANE_LANE_07_LN_CFG_EN_ADV |
SD25G_LANE_LANE_07_LN_CFG_EN_DLY,
priv,
SD25G_LANE_LANE_07(sd_index));
sdx5_rmw(SD25G_LANE_LANE_43_LN_CFG_TX_RESERVE_15_8_SET
(params->cfg_tx_reserve_15_8),
SD25G_LANE_LANE_43_LN_CFG_TX_RESERVE_15_8,
priv,
SD25G_LANE_LANE_43(sd_index));
sdx5_rmw(SD25G_LANE_LANE_42_LN_CFG_TX_RESERVE_7_0_SET
(params->cfg_tx_reserve_7_0),
SD25G_LANE_LANE_42_LN_CFG_TX_RESERVE_7_0,
priv,
SD25G_LANE_LANE_42(sd_index));
sdx5_rmw(SD25G_LANE_LANE_05_LN_CFG_BW_1_0_SET(params->cfg_bw_1_0),
SD25G_LANE_LANE_05_LN_CFG_BW_1_0,
priv,
SD25G_LANE_LANE_05(sd_index));
sdx5_rmw(SD25G_LANE_LANE_0B_LN_CFG_TXCAL_MAN_EN_SET
(params->cfg_txcal_man_en),
SD25G_LANE_LANE_0B_LN_CFG_TXCAL_MAN_EN,
priv,
SD25G_LANE_LANE_0B(sd_index));
sdx5_rmw(SD25G_LANE_LANE_0A_LN_CFG_TXCAL_SHIFT_CODE_5_0_SET
(params->cfg_txcal_shift_code_5_0),
SD25G_LANE_LANE_0A_LN_CFG_TXCAL_SHIFT_CODE_5_0,
priv,
SD25G_LANE_LANE_0A(sd_index));
sdx5_rmw(SD25G_LANE_LANE_09_LN_CFG_TXCAL_VALID_SEL_3_0_SET
(params->cfg_txcal_valid_sel_3_0),
SD25G_LANE_LANE_09_LN_CFG_TXCAL_VALID_SEL_3_0,
priv,
SD25G_LANE_LANE_09(sd_index));
sdx5_rmw(SD25G_LANE_LANE_1A_LN_CFG_CDR_KF_2_0_SET(params->cfg_cdr_kf_2_0),
SD25G_LANE_LANE_1A_LN_CFG_CDR_KF_2_0,
priv,
SD25G_LANE_LANE_1A(sd_index));
sdx5_rmw(SD25G_LANE_LANE_1B_LN_CFG_CDR_M_7_0_SET(params->cfg_cdr_m_7_0),
SD25G_LANE_LANE_1B_LN_CFG_CDR_M_7_0,
priv,
SD25G_LANE_LANE_1B(sd_index));
sdx5_rmw(SD25G_LANE_LANE_2B_LN_CFG_PI_BW_3_0_SET(params->cfg_pi_bw_3_0),
SD25G_LANE_LANE_2B_LN_CFG_PI_BW_3_0,
priv,
SD25G_LANE_LANE_2B(sd_index));
sdx5_rmw(SD25G_LANE_LANE_2C_LN_CFG_DIS_2NDORDER_SET
(params->cfg_dis_2ndorder),
SD25G_LANE_LANE_2C_LN_CFG_DIS_2NDORDER,
priv,
SD25G_LANE_LANE_2C(sd_index));
sdx5_rmw(SD25G_LANE_LANE_2E_LN_CFG_CTLE_RSTN_SET(params->cfg_ctle_rstn),
SD25G_LANE_LANE_2E_LN_CFG_CTLE_RSTN,
priv,
SD25G_LANE_LANE_2E(sd_index));
sdx5_rmw(SD25G_LANE_LANE_00_LN_CFG_ITX_IPCML_BASE_1_0_SET
(params->cfg_itx_ipcml_base_1_0),
SD25G_LANE_LANE_00_LN_CFG_ITX_IPCML_BASE_1_0,
priv,
SD25G_LANE_LANE_00(sd_index));
sdx5_rmw(SD25G_LANE_LANE_44_LN_CFG_RX_RESERVE_7_0_SET
(params->cfg_rx_reserve_7_0),
SD25G_LANE_LANE_44_LN_CFG_RX_RESERVE_7_0,
priv,
SD25G_LANE_LANE_44(sd_index));
sdx5_rmw(SD25G_LANE_LANE_45_LN_CFG_RX_RESERVE_15_8_SET
(params->cfg_rx_reserve_15_8),
SD25G_LANE_LANE_45_LN_CFG_RX_RESERVE_15_8,
priv,
SD25G_LANE_LANE_45(sd_index));
sdx5_rmw(SD25G_LANE_LANE_0D_LN_CFG_DFECK_EN_SET(params->cfg_dfeck_en) |
SD25G_LANE_LANE_0D_LN_CFG_RXTERM_2_0_SET(params->cfg_rxterm_2_0),
SD25G_LANE_LANE_0D_LN_CFG_DFECK_EN |
SD25G_LANE_LANE_0D_LN_CFG_RXTERM_2_0,
priv,
SD25G_LANE_LANE_0D(sd_index));
sdx5_rmw(SD25G_LANE_LANE_21_LN_CFG_VGA_CTRL_BYP_4_0_SET
(params->cfg_vga_ctrl_byp_4_0),
SD25G_LANE_LANE_21_LN_CFG_VGA_CTRL_BYP_4_0,
priv,
SD25G_LANE_LANE_21(sd_index));
sdx5_rmw(SD25G_LANE_LANE_22_LN_CFG_EQR_FORCE_3_0_SET
(params->cfg_eqr_force_3_0),
SD25G_LANE_LANE_22_LN_CFG_EQR_FORCE_3_0,
priv,
SD25G_LANE_LANE_22(sd_index));
sdx5_rmw(SD25G_LANE_LANE_1C_LN_CFG_EQC_FORCE_3_0_SET
(params->cfg_eqc_force_3_0) |
SD25G_LANE_LANE_1C_LN_CFG_DFE_PD_SET(params->cfg_dfe_pd),
SD25G_LANE_LANE_1C_LN_CFG_EQC_FORCE_3_0 |
SD25G_LANE_LANE_1C_LN_CFG_DFE_PD,
priv,
SD25G_LANE_LANE_1C(sd_index));
sdx5_rmw(SD25G_LANE_LANE_1E_LN_CFG_SUM_SETCM_EN_SET
(params->cfg_sum_setcm_en),
SD25G_LANE_LANE_1E_LN_CFG_SUM_SETCM_EN,
priv,
SD25G_LANE_LANE_1E(sd_index));
sdx5_rmw(SD25G_LANE_LANE_25_LN_CFG_INIT_POS_ISCAN_6_0_SET
(params->cfg_init_pos_iscan_6_0),
SD25G_LANE_LANE_25_LN_CFG_INIT_POS_ISCAN_6_0,
priv,
SD25G_LANE_LANE_25(sd_index));
sdx5_rmw(SD25G_LANE_LANE_26_LN_CFG_INIT_POS_IPI_6_0_SET
(params->cfg_init_pos_ipi_6_0),
SD25G_LANE_LANE_26_LN_CFG_INIT_POS_IPI_6_0,
priv,
SD25G_LANE_LANE_26(sd_index));
sdx5_rmw(SD25G_LANE_LANE_18_LN_CFG_ERRAMP_PD_SET(params->cfg_erramp_pd),
SD25G_LANE_LANE_18_LN_CFG_ERRAMP_PD,
priv,
SD25G_LANE_LANE_18(sd_index));
sdx5_rmw(SD25G_LANE_LANE_0E_LN_CFG_DFEDIG_M_2_0_SET
(params->cfg_dfedig_m_2_0),
SD25G_LANE_LANE_0E_LN_CFG_DFEDIG_M_2_0,
priv,
SD25G_LANE_LANE_0E(sd_index));
sdx5_rmw(SD25G_LANE_LANE_0E_LN_CFG_EN_DFEDIG_SET(params->cfg_en_dfedig),
SD25G_LANE_LANE_0E_LN_CFG_EN_DFEDIG,
priv,
SD25G_LANE_LANE_0E(sd_index));
sdx5_rmw(SD25G_LANE_LANE_40_LN_R_TX_POL_INV_SET(params->r_tx_pol_inv) |
SD25G_LANE_LANE_40_LN_R_RX_POL_INV_SET(params->r_rx_pol_inv),
SD25G_LANE_LANE_40_LN_R_TX_POL_INV |
SD25G_LANE_LANE_40_LN_R_RX_POL_INV,
priv,
SD25G_LANE_LANE_40(sd_index));
sdx5_rmw(SD25G_LANE_LANE_04_LN_CFG_RX2TX_LP_EN_SET(params->cfg_rx2tx_lp_en) |
SD25G_LANE_LANE_04_LN_CFG_TX2RX_LP_EN_SET(params->cfg_tx2rx_lp_en),
SD25G_LANE_LANE_04_LN_CFG_RX2TX_LP_EN |
SD25G_LANE_LANE_04_LN_CFG_TX2RX_LP_EN,
priv,
SD25G_LANE_LANE_04(sd_index));
sdx5_rmw(SD25G_LANE_LANE_1E_LN_CFG_RXLB_EN_SET(params->cfg_rxlb_en),
SD25G_LANE_LANE_1E_LN_CFG_RXLB_EN,
priv,
SD25G_LANE_LANE_1E(sd_index));
sdx5_rmw(SD25G_LANE_LANE_19_LN_CFG_TXLB_EN_SET(params->cfg_txlb_en),
SD25G_LANE_LANE_19_LN_CFG_TXLB_EN,
priv,
SD25G_LANE_LANE_19(sd_index));
sdx5_rmw(SD25G_LANE_LANE_2E_LN_CFG_RSTN_DFEDIG_SET(0),
SD25G_LANE_LANE_2E_LN_CFG_RSTN_DFEDIG,
priv,
SD25G_LANE_LANE_2E(sd_index));
sdx5_rmw(SD25G_LANE_LANE_2E_LN_CFG_RSTN_DFEDIG_SET(1),
SD25G_LANE_LANE_2E_LN_CFG_RSTN_DFEDIG,
priv,
SD25G_LANE_LANE_2E(sd_index));
sdx5_rmw(SD_LANE_25G_SD_LANE_CFG_MACRO_RST_SET(0),
SD_LANE_25G_SD_LANE_CFG_MACRO_RST,
priv,
SD_LANE_25G_SD_LANE_CFG(sd_index));
sdx5_rmw(SD25G_LANE_LANE_1C_LN_CFG_CDR_RSTN_SET(0),
SD25G_LANE_LANE_1C_LN_CFG_CDR_RSTN,
priv,
SD25G_LANE_LANE_1C(sd_index));
usleep_range(1000, 2000);
sdx5_rmw(SD25G_LANE_LANE_1C_LN_CFG_CDR_RSTN_SET(1),
SD25G_LANE_LANE_1C_LN_CFG_CDR_RSTN,
priv,
SD25G_LANE_LANE_1C(sd_index));
usleep_range(10000, 20000);
sdx5_rmw(SD25G_LANE_CMU_FF_REGISTER_TABLE_INDEX_SET(0xff),
SD25G_LANE_CMU_FF_REGISTER_TABLE_INDEX,
priv,
SD25G_LANE_CMU_FF(sd_index));
value = readl(sdx5_addr(regs, SD25G_LANE_CMU_C0(sd_index)));
value = SD25G_LANE_CMU_C0_PLL_LOL_UDL_GET(value);
if (value) {
dev_err(dev, "25G PLL Loss of Lock: 0x%x\n", value);
return -EINVAL;
}
value = readl(sdx5_addr(regs, SD_LANE_25G_SD_LANE_STAT(sd_index)));
value = SD_LANE_25G_SD_LANE_STAT_PMA_RST_DONE_GET(value);
if (value != 0x1) {
dev_err(dev, "25G PMA Reset failed: 0x%x\n", value);
return -EINVAL;
}
sdx5_rmw(SD25G_LANE_CMU_2A_R_DBG_LOL_STATUS_SET(0x1),
SD25G_LANE_CMU_2A_R_DBG_LOL_STATUS,
priv,
SD25G_LANE_CMU_2A(sd_index));
sdx5_rmw(SD_LANE_25G_SD_SER_RST_SER_RST_SET(0x0),
SD_LANE_25G_SD_SER_RST_SER_RST,
priv,
SD_LANE_25G_SD_SER_RST(sd_index));
sdx5_rmw(SD_LANE_25G_SD_DES_RST_DES_RST_SET(0x0),
SD_LANE_25G_SD_DES_RST_DES_RST,
priv,
SD_LANE_25G_SD_DES_RST(sd_index));
sdx5_rmw(SD25G_LANE_CMU_FF_REGISTER_TABLE_INDEX_SET(0),
SD25G_LANE_CMU_FF_REGISTER_TABLE_INDEX,
priv,
SD25G_LANE_CMU_FF(sd_index));
sdx5_rmw(SD25G_LANE_LANE_2D_LN_CFG_ALOS_THR_2_0_SET
(params->cfg_alos_thr_2_0),
SD25G_LANE_LANE_2D_LN_CFG_ALOS_THR_2_0,
priv,
SD25G_LANE_LANE_2D(sd_index));
sdx5_rmw(SD25G_LANE_LANE_2E_LN_CFG_DIS_SQ_SET(0),
SD25G_LANE_LANE_2E_LN_CFG_DIS_SQ,
priv,
SD25G_LANE_LANE_2E(sd_index));
sdx5_rmw(SD25G_LANE_LANE_2E_LN_CFG_PD_SQ_SET(0),
SD25G_LANE_LANE_2E_LN_CFG_PD_SQ,
priv,
SD25G_LANE_LANE_2E(sd_index));
return 0;
}
static void sparx5_sd10g28_reset(void __iomem *regs[], u32 lane_index)
{
/* Note: SerDes SD10G_LANE_1 is configured in 10G_LAN mode */
sdx5_rmw_addr(SD_LANE_SD_LANE_CFG_EXT_CFG_RST_SET(1),
SD_LANE_SD_LANE_CFG_EXT_CFG_RST,
sdx5_addr(regs, SD_LANE_SD_LANE_CFG(lane_index)));
usleep_range(1000, 2000);
sdx5_rmw_addr(SD_LANE_SD_LANE_CFG_EXT_CFG_RST_SET(0),
SD_LANE_SD_LANE_CFG_EXT_CFG_RST,
sdx5_addr(regs, SD_LANE_SD_LANE_CFG(lane_index)));
}
static int sparx5_sd10g28_apply_params(struct sparx5_serdes_macro *macro,
struct sparx5_sd10g28_params *params)
{
struct sparx5_serdes_private *priv = macro->priv;
void __iomem **regs = priv->regs;
struct device *dev = priv->dev;
u32 lane_index = macro->sidx;
u32 sd_index = macro->stpidx;
void __iomem *sd_inst;
u32 value;
if (params->is_6g)
sd_inst = sdx5_inst_get(priv, TARGET_SD6G_LANE, sd_index);
else
sd_inst = sdx5_inst_get(priv, TARGET_SD10G_LANE, sd_index);
sdx5_rmw(SD_LANE_SD_LANE_CFG_MACRO_RST_SET(1),
SD_LANE_SD_LANE_CFG_MACRO_RST,
priv,
SD_LANE_SD_LANE_CFG(lane_index));
sdx5_inst_rmw(SD10G_LANE_LANE_93_R_DWIDTHCTRL_FROM_HWT_SET(0x0) |
SD10G_LANE_LANE_93_R_REG_MANUAL_SET(0x1) |
SD10G_LANE_LANE_93_R_AUXCKSEL_FROM_HWT_SET(0x1) |
SD10G_LANE_LANE_93_R_LANE_ID_FROM_HWT_SET(0x1) |
SD10G_LANE_LANE_93_R_EN_RATECHG_CTRL_SET(0x0),
SD10G_LANE_LANE_93_R_DWIDTHCTRL_FROM_HWT |
SD10G_LANE_LANE_93_R_REG_MANUAL |
SD10G_LANE_LANE_93_R_AUXCKSEL_FROM_HWT |
SD10G_LANE_LANE_93_R_LANE_ID_FROM_HWT |
SD10G_LANE_LANE_93_R_EN_RATECHG_CTRL,
sd_inst,
SD10G_LANE_LANE_93(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_94_R_ISCAN_REG_SET(0x1) |
SD10G_LANE_LANE_94_R_TXEQ_REG_SET(0x1) |
SD10G_LANE_LANE_94_R_MISC_REG_SET(0x1) |
SD10G_LANE_LANE_94_R_SWING_REG_SET(0x1),
SD10G_LANE_LANE_94_R_ISCAN_REG |
SD10G_LANE_LANE_94_R_TXEQ_REG |
SD10G_LANE_LANE_94_R_MISC_REG |
SD10G_LANE_LANE_94_R_SWING_REG,
sd_inst,
SD10G_LANE_LANE_94(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_9E_R_RXEQ_REG_SET(0x1),
SD10G_LANE_LANE_9E_R_RXEQ_REG,
sd_inst,
SD10G_LANE_LANE_9E(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_A1_R_SSC_FROM_HWT_SET(0x0) |
SD10G_LANE_LANE_A1_R_CDR_FROM_HWT_SET(0x0) |
SD10G_LANE_LANE_A1_R_PCLK_GATING_FROM_HWT_SET(0x1),
SD10G_LANE_LANE_A1_R_SSC_FROM_HWT |
SD10G_LANE_LANE_A1_R_CDR_FROM_HWT |
SD10G_LANE_LANE_A1_R_PCLK_GATING_FROM_HWT,
sd_inst,
SD10G_LANE_LANE_A1(sd_index));
sdx5_rmw(SD_LANE_SD_LANE_CFG_RX_REF_SEL_SET(params->cmu_sel) |
SD_LANE_SD_LANE_CFG_TX_REF_SEL_SET(params->cmu_sel),
SD_LANE_SD_LANE_CFG_RX_REF_SEL |
SD_LANE_SD_LANE_CFG_TX_REF_SEL,
priv,
SD_LANE_SD_LANE_CFG(lane_index));
sdx5_inst_rmw(SD10G_LANE_LANE_40_CFG_LANE_RESERVE_7_0_SET
(params->cfg_lane_reserve_7_0),
SD10G_LANE_LANE_40_CFG_LANE_RESERVE_7_0,
sd_inst,
SD10G_LANE_LANE_40(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_50_CFG_SSC_RTL_CLK_SEL_SET
(params->cfg_ssc_rtl_clk_sel),
SD10G_LANE_LANE_50_CFG_SSC_RTL_CLK_SEL,
sd_inst,
SD10G_LANE_LANE_50(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_35_CFG_TXRATE_1_0_SET
(params->cfg_txrate_1_0) |
SD10G_LANE_LANE_35_CFG_RXRATE_1_0_SET
(params->cfg_rxrate_1_0),
SD10G_LANE_LANE_35_CFG_TXRATE_1_0 |
SD10G_LANE_LANE_35_CFG_RXRATE_1_0,
sd_inst,
SD10G_LANE_LANE_35(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_94_R_DWIDTHCTRL_2_0_SET
(params->r_d_width_ctrl_2_0),
SD10G_LANE_LANE_94_R_DWIDTHCTRL_2_0,
sd_inst,
SD10G_LANE_LANE_94(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_01_CFG_PMA_TX_CK_BITWIDTH_2_0_SET
(params->cfg_pma_tx_ck_bitwidth_2_0),
SD10G_LANE_LANE_01_CFG_PMA_TX_CK_BITWIDTH_2_0,
sd_inst,
SD10G_LANE_LANE_01(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_30_CFG_RXDIV_SEL_2_0_SET
(params->cfg_rxdiv_sel_2_0),
SD10G_LANE_LANE_30_CFG_RXDIV_SEL_2_0,
sd_inst,
SD10G_LANE_LANE_30(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_A2_R_PCS2PMA_PHYMODE_4_0_SET
(params->r_pcs2pma_phymode_4_0),
SD10G_LANE_LANE_A2_R_PCS2PMA_PHYMODE_4_0,
sd_inst,
SD10G_LANE_LANE_A2(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_13_CFG_CDRCK_EN_SET(params->cfg_cdrck_en),
SD10G_LANE_LANE_13_CFG_CDRCK_EN,
sd_inst,
SD10G_LANE_LANE_13(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_23_CFG_DFECK_EN_SET
(params->cfg_dfeck_en) |
SD10G_LANE_LANE_23_CFG_DFE_PD_SET(params->cfg_dfe_pd) |
SD10G_LANE_LANE_23_CFG_ERRAMP_PD_SET
(params->cfg_erramp_pd),
SD10G_LANE_LANE_23_CFG_DFECK_EN |
SD10G_LANE_LANE_23_CFG_DFE_PD |
SD10G_LANE_LANE_23_CFG_ERRAMP_PD,
sd_inst,
SD10G_LANE_LANE_23(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_22_CFG_DFETAP_EN_5_1_SET
(params->cfg_dfetap_en_5_1),
SD10G_LANE_LANE_22_CFG_DFETAP_EN_5_1,
sd_inst,
SD10G_LANE_LANE_22(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_1A_CFG_PI_DFE_EN_SET
(params->cfg_pi_DFE_en),
SD10G_LANE_LANE_1A_CFG_PI_DFE_EN,
sd_inst,
SD10G_LANE_LANE_1A(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_02_CFG_EN_ADV_SET(params->cfg_en_adv) |
SD10G_LANE_LANE_02_CFG_EN_MAIN_SET(params->cfg_en_main) |
SD10G_LANE_LANE_02_CFG_EN_DLY_SET(params->cfg_en_dly) |
SD10G_LANE_LANE_02_CFG_TAP_ADV_3_0_SET
(params->cfg_tap_adv_3_0),
SD10G_LANE_LANE_02_CFG_EN_ADV |
SD10G_LANE_LANE_02_CFG_EN_MAIN |
SD10G_LANE_LANE_02_CFG_EN_DLY |
SD10G_LANE_LANE_02_CFG_TAP_ADV_3_0,
sd_inst,
SD10G_LANE_LANE_02(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_03_CFG_TAP_MAIN_SET(params->cfg_tap_main),
SD10G_LANE_LANE_03_CFG_TAP_MAIN,
sd_inst,
SD10G_LANE_LANE_03(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_04_CFG_TAP_DLY_4_0_SET
(params->cfg_tap_dly_4_0),
SD10G_LANE_LANE_04_CFG_TAP_DLY_4_0,
sd_inst,
SD10G_LANE_LANE_04(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_2F_CFG_VGA_CTRL_3_0_SET
(params->cfg_vga_ctrl_3_0),
SD10G_LANE_LANE_2F_CFG_VGA_CTRL_3_0,
sd_inst,
SD10G_LANE_LANE_2F(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_2F_CFG_VGA_CP_2_0_SET
(params->cfg_vga_cp_2_0),
SD10G_LANE_LANE_2F_CFG_VGA_CP_2_0,
sd_inst,
SD10G_LANE_LANE_2F(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_0B_CFG_EQ_RES_3_0_SET
(params->cfg_eq_res_3_0),
SD10G_LANE_LANE_0B_CFG_EQ_RES_3_0,
sd_inst,
SD10G_LANE_LANE_0B(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_0D_CFG_EQR_BYP_SET(params->cfg_eq_r_byp),
SD10G_LANE_LANE_0D_CFG_EQR_BYP,
sd_inst,
SD10G_LANE_LANE_0D(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_0E_CFG_EQC_FORCE_3_0_SET
(params->cfg_eq_c_force_3_0) |
SD10G_LANE_LANE_0E_CFG_SUM_SETCM_EN_SET
(params->cfg_sum_setcm_en),
SD10G_LANE_LANE_0E_CFG_EQC_FORCE_3_0 |
SD10G_LANE_LANE_0E_CFG_SUM_SETCM_EN,
sd_inst,
SD10G_LANE_LANE_0E(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_23_CFG_EN_DFEDIG_SET
(params->cfg_en_dfedig),
SD10G_LANE_LANE_23_CFG_EN_DFEDIG,
sd_inst,
SD10G_LANE_LANE_23(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_06_CFG_EN_PREEMPH_SET
(params->cfg_en_preemph),
SD10G_LANE_LANE_06_CFG_EN_PREEMPH,
sd_inst,
SD10G_LANE_LANE_06(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_33_CFG_ITX_IPPREEMP_BASE_1_0_SET
(params->cfg_itx_ippreemp_base_1_0) |
SD10G_LANE_LANE_33_CFG_ITX_IPDRIVER_BASE_2_0_SET
(params->cfg_itx_ipdriver_base_2_0),
SD10G_LANE_LANE_33_CFG_ITX_IPPREEMP_BASE_1_0 |
SD10G_LANE_LANE_33_CFG_ITX_IPDRIVER_BASE_2_0,
sd_inst,
SD10G_LANE_LANE_33(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_52_CFG_IBIAS_TUNE_RESERVE_5_0_SET
(params->cfg_ibias_tune_reserve_5_0),
SD10G_LANE_LANE_52_CFG_IBIAS_TUNE_RESERVE_5_0,
sd_inst,
SD10G_LANE_LANE_52(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_37_CFG_TXSWING_HALF_SET
(params->cfg_txswing_half),
SD10G_LANE_LANE_37_CFG_TXSWING_HALF,
sd_inst,
SD10G_LANE_LANE_37(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_3C_CFG_DIS_2NDORDER_SET
(params->cfg_dis_2nd_order),
SD10G_LANE_LANE_3C_CFG_DIS_2NDORDER,
sd_inst,
SD10G_LANE_LANE_3C(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_39_CFG_RX_SSC_LH_SET
(params->cfg_rx_ssc_lh),
SD10G_LANE_LANE_39_CFG_RX_SSC_LH,
sd_inst,
SD10G_LANE_LANE_39(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_1A_CFG_PI_FLOOP_STEPS_1_0_SET
(params->cfg_pi_floop_steps_1_0),
SD10G_LANE_LANE_1A_CFG_PI_FLOOP_STEPS_1_0,
sd_inst,
SD10G_LANE_LANE_1A(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_16_CFG_PI_EXT_DAC_23_16_SET
(params->cfg_pi_ext_dac_23_16),
SD10G_LANE_LANE_16_CFG_PI_EXT_DAC_23_16,
sd_inst,
SD10G_LANE_LANE_16(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_15_CFG_PI_EXT_DAC_15_8_SET
(params->cfg_pi_ext_dac_15_8),
SD10G_LANE_LANE_15_CFG_PI_EXT_DAC_15_8,
sd_inst,
SD10G_LANE_LANE_15(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_26_CFG_ISCAN_EXT_DAC_7_0_SET
(params->cfg_iscan_ext_dac_7_0),
SD10G_LANE_LANE_26_CFG_ISCAN_EXT_DAC_7_0,
sd_inst,
SD10G_LANE_LANE_26(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_42_CFG_CDR_KF_GEN1_2_0_SET
(params->cfg_cdr_kf_gen1_2_0),
SD10G_LANE_LANE_42_CFG_CDR_KF_GEN1_2_0,
sd_inst,
SD10G_LANE_LANE_42(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_0F_R_CDR_M_GEN1_7_0_SET
(params->r_cdr_m_gen1_7_0),
SD10G_LANE_LANE_0F_R_CDR_M_GEN1_7_0,
sd_inst,
SD10G_LANE_LANE_0F(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_24_CFG_PI_BW_GEN1_3_0_SET
(params->cfg_pi_bw_gen1_3_0),
SD10G_LANE_LANE_24_CFG_PI_BW_GEN1_3_0,
sd_inst,
SD10G_LANE_LANE_24(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_14_CFG_PI_EXT_DAC_7_0_SET
(params->cfg_pi_ext_dac_7_0),
SD10G_LANE_LANE_14_CFG_PI_EXT_DAC_7_0,
sd_inst,
SD10G_LANE_LANE_14(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_1A_CFG_PI_STEPS_SET(params->cfg_pi_steps),
SD10G_LANE_LANE_1A_CFG_PI_STEPS,
sd_inst,
SD10G_LANE_LANE_1A(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_3A_CFG_MP_MAX_3_0_SET
(params->cfg_mp_max_3_0),
SD10G_LANE_LANE_3A_CFG_MP_MAX_3_0,
sd_inst,
SD10G_LANE_LANE_3A(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_31_CFG_RSTN_DFEDIG_SET
(params->cfg_rstn_dfedig),
SD10G_LANE_LANE_31_CFG_RSTN_DFEDIG,
sd_inst,
SD10G_LANE_LANE_31(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_48_CFG_ALOS_THR_3_0_SET
(params->cfg_alos_thr_3_0),
SD10G_LANE_LANE_48_CFG_ALOS_THR_3_0,
sd_inst,
SD10G_LANE_LANE_48(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_36_CFG_PREDRV_SLEWRATE_1_0_SET
(params->cfg_predrv_slewrate_1_0),
SD10G_LANE_LANE_36_CFG_PREDRV_SLEWRATE_1_0,
sd_inst,
SD10G_LANE_LANE_36(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_32_CFG_ITX_IPCML_BASE_1_0_SET
(params->cfg_itx_ipcml_base_1_0),
SD10G_LANE_LANE_32_CFG_ITX_IPCML_BASE_1_0,
sd_inst,
SD10G_LANE_LANE_32(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_37_CFG_IP_PRE_BASE_1_0_SET
(params->cfg_ip_pre_base_1_0),
SD10G_LANE_LANE_37_CFG_IP_PRE_BASE_1_0,
sd_inst,
SD10G_LANE_LANE_37(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_41_CFG_LANE_RESERVE_15_8_SET
(params->cfg_lane_reserve_15_8),
SD10G_LANE_LANE_41_CFG_LANE_RESERVE_15_8,
sd_inst,
SD10G_LANE_LANE_41(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_9E_R_EN_AUTO_CDR_RSTN_SET
(params->r_en_auto_cdr_rstn),
SD10G_LANE_LANE_9E_R_EN_AUTO_CDR_RSTN,
sd_inst,
SD10G_LANE_LANE_9E(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_0C_CFG_OSCAL_AFE_SET
(params->cfg_oscal_afe) |
SD10G_LANE_LANE_0C_CFG_PD_OSDAC_AFE_SET
(params->cfg_pd_osdac_afe),
SD10G_LANE_LANE_0C_CFG_OSCAL_AFE |
SD10G_LANE_LANE_0C_CFG_PD_OSDAC_AFE,
sd_inst,
SD10G_LANE_LANE_0C(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_0B_CFG_RESETB_OSCAL_AFE_SET
(params->cfg_resetb_oscal_afe[0]),
SD10G_LANE_LANE_0B_CFG_RESETB_OSCAL_AFE,
sd_inst,
SD10G_LANE_LANE_0B(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_0B_CFG_RESETB_OSCAL_AFE_SET
(params->cfg_resetb_oscal_afe[1]),
SD10G_LANE_LANE_0B_CFG_RESETB_OSCAL_AFE,
sd_inst,
SD10G_LANE_LANE_0B(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_83_R_TX_POL_INV_SET
(params->r_tx_pol_inv) |
SD10G_LANE_LANE_83_R_RX_POL_INV_SET
(params->r_rx_pol_inv),
SD10G_LANE_LANE_83_R_TX_POL_INV |
SD10G_LANE_LANE_83_R_RX_POL_INV,
sd_inst,
SD10G_LANE_LANE_83(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_06_CFG_RX2TX_LP_EN_SET
(params->cfg_rx2tx_lp_en) |
SD10G_LANE_LANE_06_CFG_TX2RX_LP_EN_SET
(params->cfg_tx2rx_lp_en),
SD10G_LANE_LANE_06_CFG_RX2TX_LP_EN |
SD10G_LANE_LANE_06_CFG_TX2RX_LP_EN,
sd_inst,
SD10G_LANE_LANE_06(sd_index));
sdx5_inst_rmw(SD10G_LANE_LANE_0E_CFG_RXLB_EN_SET(params->cfg_rxlb_en) |
SD10G_LANE_LANE_0E_CFG_TXLB_EN_SET(params->cfg_txlb_en),
SD10G_LANE_LANE_0E_CFG_RXLB_EN |
SD10G_LANE_LANE_0E_CFG_TXLB_EN,
sd_inst,
SD10G_LANE_LANE_0E(sd_index));
sdx5_rmw(SD_LANE_SD_LANE_CFG_MACRO_RST_SET(0),
SD_LANE_SD_LANE_CFG_MACRO_RST,
priv,
SD_LANE_SD_LANE_CFG(lane_index));
sdx5_inst_rmw(SD10G_LANE_LANE_50_CFG_SSC_RESETB_SET(1),
SD10G_LANE_LANE_50_CFG_SSC_RESETB,
sd_inst,
SD10G_LANE_LANE_50(sd_index));
sdx5_rmw(SD10G_LANE_LANE_50_CFG_SSC_RESETB_SET(1),
SD10G_LANE_LANE_50_CFG_SSC_RESETB,
priv,
SD10G_LANE_LANE_50(sd_index));
sdx5_rmw(SD_LANE_MISC_SD_125_RST_DIS_SET(params->fx_100),
SD_LANE_MISC_SD_125_RST_DIS,
priv,
SD_LANE_MISC(lane_index));
sdx5_rmw(SD_LANE_MISC_RX_ENA_SET(params->fx_100),
SD_LANE_MISC_RX_ENA,
priv,
SD_LANE_MISC(lane_index));
sdx5_rmw(SD_LANE_MISC_MUX_ENA_SET(params->fx_100),
SD_LANE_MISC_MUX_ENA,
priv,
SD_LANE_MISC(lane_index));
usleep_range(3000, 6000);
value = readl(sdx5_addr(regs, SD_LANE_SD_LANE_STAT(lane_index)));
value = SD_LANE_SD_LANE_STAT_PMA_RST_DONE_GET(value);
if (value != 1) {
dev_err(dev, "10G PMA Reset failed: 0x%x\n", value);
return -EINVAL;
}
sdx5_rmw(SD_LANE_SD_SER_RST_SER_RST_SET(0x0),
SD_LANE_SD_SER_RST_SER_RST,
priv,
SD_LANE_SD_SER_RST(lane_index));
sdx5_rmw(SD_LANE_SD_DES_RST_DES_RST_SET(0x0),
SD_LANE_SD_DES_RST_DES_RST,
priv,
SD_LANE_SD_DES_RST(lane_index));
return 0;
}
static int sparx5_sd25g28_config(struct sparx5_serdes_macro *macro, bool reset)
{
struct sparx5_sd25g28_media_preset media = media_presets_25g[macro->media];
struct sparx5_sd25g28_mode_preset mode;
struct sparx5_sd25g28_args args = {
.rxinvert = 1,
.txinvert = 0,
.txswing = 240,
.com_pll_reserve = 0xf,
.reg_rst = reset,
};
struct sparx5_sd25g28_params params;
int err;
err = sparx5_sd10g25_get_mode_preset(macro, &mode);
if (err)
return err;
sparx5_sd25g28_get_params(macro, &media, &mode, &args, &params);
sparx5_sd25g28_reset(macro->priv->regs, &params, macro->stpidx);
return sparx5_sd25g28_apply_params(macro, &params);
}
static int sparx5_sd10g28_config(struct sparx5_serdes_macro *macro, bool reset)
{
struct sparx5_sd10g28_media_preset media = media_presets_10g[macro->media];
struct sparx5_sd10g28_mode_preset mode;
struct sparx5_sd10g28_params params;
struct sparx5_sd10g28_args args = {
.is_6g = (macro->serdestype == SPX5_SDT_6G),
.txinvert = 0,
.rxinvert = 1,
.txswing = 240,
.reg_rst = reset,
};
int err;
err = sparx5_sd10g28_get_mode_preset(macro, &mode, &args);
if (err)
return err;
sparx5_sd10g28_get_params(macro, &media, &mode, &args, &params);
sparx5_sd10g28_reset(macro->priv->regs, macro->sidx);
return sparx5_sd10g28_apply_params(macro, &params);
}
/* Power down serdes TX driver */
static int sparx5_serdes_power_save(struct sparx5_serdes_macro *macro, u32 pwdn)
{
struct sparx5_serdes_private *priv = macro->priv;
void __iomem *sd_inst;
if (macro->serdestype == SPX5_SDT_6G)
sd_inst = sdx5_inst_get(priv, TARGET_SD6G_LANE, macro->stpidx);
else if (macro->serdestype == SPX5_SDT_10G)
sd_inst = sdx5_inst_get(priv, TARGET_SD10G_LANE, macro->stpidx);
else
sd_inst = sdx5_inst_get(priv, TARGET_SD25G_LANE, macro->stpidx);
if (macro->serdestype == SPX5_SDT_25G) {
sdx5_inst_rmw(SD25G_LANE_LANE_04_LN_CFG_PD_DRIVER_SET(pwdn),
SD25G_LANE_LANE_04_LN_CFG_PD_DRIVER,
sd_inst,
SD25G_LANE_LANE_04(0));
} else {
/* 6G and 10G */
sdx5_inst_rmw(SD10G_LANE_LANE_06_CFG_PD_DRIVER_SET(pwdn),
SD10G_LANE_LANE_06_CFG_PD_DRIVER,
sd_inst,
SD10G_LANE_LANE_06(0));
}
return 0;
}
static int sparx5_serdes_clock_config(struct sparx5_serdes_macro *macro)
{
struct sparx5_serdes_private *priv = macro->priv;
if (macro->serdesmode == SPX5_SD_MODE_100FX) {
u32 freq = priv->coreclock == 250000000 ? 2 :
priv->coreclock == 500000000 ? 1 : 0;
sdx5_rmw(SD_LANE_MISC_CORE_CLK_FREQ_SET(freq),
SD_LANE_MISC_CORE_CLK_FREQ,
priv,
SD_LANE_MISC(macro->sidx));
}
return 0;
}
static int sparx5_cmu_apply_cfg(struct sparx5_serdes_private *priv,
u32 cmu_idx,
void __iomem *cmu_tgt,
void __iomem *cmu_cfg_tgt,
u32 spd10g)
{
void __iomem **regs = priv->regs;
struct device *dev = priv->dev;
int value;
cmu_tgt = sdx5_inst_get(priv, TARGET_SD_CMU, cmu_idx);
cmu_cfg_tgt = sdx5_inst_get(priv, TARGET_SD_CMU_CFG, cmu_idx);
if (cmu_idx == 1 || cmu_idx == 4 || cmu_idx == 7 ||
cmu_idx == 10 || cmu_idx == 13) {
spd10g = 0;
}
sdx5_inst_rmw(SD_CMU_CFG_SD_CMU_CFG_EXT_CFG_RST_SET(1),
SD_CMU_CFG_SD_CMU_CFG_EXT_CFG_RST,
cmu_cfg_tgt,
SD_CMU_CFG_SD_CMU_CFG(cmu_idx));
sdx5_inst_rmw(SD_CMU_CFG_SD_CMU_CFG_EXT_CFG_RST_SET(0),
SD_CMU_CFG_SD_CMU_CFG_EXT_CFG_RST,
cmu_cfg_tgt,
SD_CMU_CFG_SD_CMU_CFG(cmu_idx));
sdx5_inst_rmw(SD_CMU_CFG_SD_CMU_CFG_CMU_RST_SET(1),
SD_CMU_CFG_SD_CMU_CFG_CMU_RST,
cmu_cfg_tgt,
SD_CMU_CFG_SD_CMU_CFG(cmu_idx));
sdx5_inst_rmw(SD_CMU_CMU_45_R_DWIDTHCTRL_FROM_HWT_SET(0x1) |
SD_CMU_CMU_45_R_REFCK_SSC_EN_FROM_HWT_SET(0x1) |
SD_CMU_CMU_45_R_LINK_BUF_EN_FROM_HWT_SET(0x1) |
SD_CMU_CMU_45_R_BIAS_EN_FROM_HWT_SET(0x1) |
SD_CMU_CMU_45_R_EN_RATECHG_CTRL_SET(0x0),
SD_CMU_CMU_45_R_DWIDTHCTRL_FROM_HWT |
SD_CMU_CMU_45_R_REFCK_SSC_EN_FROM_HWT |
SD_CMU_CMU_45_R_LINK_BUF_EN_FROM_HWT |
SD_CMU_CMU_45_R_BIAS_EN_FROM_HWT |
SD_CMU_CMU_45_R_EN_RATECHG_CTRL,
cmu_tgt,
SD_CMU_CMU_45(cmu_idx));
sdx5_inst_rmw(SD_CMU_CMU_47_R_PCS2PMA_PHYMODE_4_0_SET(0),
SD_CMU_CMU_47_R_PCS2PMA_PHYMODE_4_0,
cmu_tgt,
SD_CMU_CMU_47(cmu_idx));
sdx5_inst_rmw(SD_CMU_CMU_1B_CFG_RESERVE_7_0_SET(0),
SD_CMU_CMU_1B_CFG_RESERVE_7_0,
cmu_tgt,
SD_CMU_CMU_1B(cmu_idx));
sdx5_inst_rmw(SD_CMU_CMU_0D_CFG_JC_BYP_SET(0x1),
SD_CMU_CMU_0D_CFG_JC_BYP,
cmu_tgt,
SD_CMU_CMU_0D(cmu_idx));
sdx5_inst_rmw(SD_CMU_CMU_1F_CFG_VTUNE_SEL_SET(1),
SD_CMU_CMU_1F_CFG_VTUNE_SEL,
cmu_tgt,
SD_CMU_CMU_1F(cmu_idx));
sdx5_inst_rmw(SD_CMU_CMU_00_CFG_PLL_TP_SEL_1_0_SET(3),
SD_CMU_CMU_00_CFG_PLL_TP_SEL_1_0,
cmu_tgt,
SD_CMU_CMU_00(cmu_idx));
sdx5_inst_rmw(SD_CMU_CMU_05_CFG_BIAS_TP_SEL_1_0_SET(3),
SD_CMU_CMU_05_CFG_BIAS_TP_SEL_1_0,
cmu_tgt,
SD_CMU_CMU_05(cmu_idx));
sdx5_inst_rmw(SD_CMU_CMU_30_R_PLL_DLOL_EN_SET(1),
SD_CMU_CMU_30_R_PLL_DLOL_EN,
cmu_tgt,
SD_CMU_CMU_30(cmu_idx));
sdx5_inst_rmw(SD_CMU_CMU_09_CFG_SW_10G_SET(spd10g),
SD_CMU_CMU_09_CFG_SW_10G,
cmu_tgt,
SD_CMU_CMU_09(cmu_idx));
sdx5_inst_rmw(SD_CMU_CFG_SD_CMU_CFG_CMU_RST_SET(0),
SD_CMU_CFG_SD_CMU_CFG_CMU_RST,
cmu_cfg_tgt,
SD_CMU_CFG_SD_CMU_CFG(cmu_idx));
msleep(20);
sdx5_inst_rmw(SD_CMU_CMU_44_R_PLL_RSTN_SET(0),
SD_CMU_CMU_44_R_PLL_RSTN,
cmu_tgt,
SD_CMU_CMU_44(cmu_idx));
sdx5_inst_rmw(SD_CMU_CMU_44_R_PLL_RSTN_SET(1),
SD_CMU_CMU_44_R_PLL_RSTN,
cmu_tgt,
SD_CMU_CMU_44(cmu_idx));
msleep(20);
value = readl(sdx5_addr(regs, SD_CMU_CMU_E0(cmu_idx)));
value = SD_CMU_CMU_E0_PLL_LOL_UDL_GET(value);
if (value) {
dev_err(dev, "CMU PLL Loss of Lock: 0x%x\n", value);
return -EINVAL;
}
sdx5_inst_rmw(SD_CMU_CMU_0D_CFG_PMA_TX_CK_PD_SET(0),
SD_CMU_CMU_0D_CFG_PMA_TX_CK_PD,
cmu_tgt,
SD_CMU_CMU_0D(cmu_idx));
return 0;
}
static int sparx5_cmu_cfg(struct sparx5_serdes_private *priv, u32 cmu_idx)
{
void __iomem *cmu_tgt, *cmu_cfg_tgt;
u32 spd10g = 1;
if (cmu_idx == 1 || cmu_idx == 4 || cmu_idx == 7 ||
cmu_idx == 10 || cmu_idx == 13) {
spd10g = 0;
}
cmu_tgt = sdx5_inst_get(priv, TARGET_SD_CMU, cmu_idx);
cmu_cfg_tgt = sdx5_inst_get(priv, TARGET_SD_CMU_CFG, cmu_idx);
return sparx5_cmu_apply_cfg(priv, cmu_idx, cmu_tgt, cmu_cfg_tgt, spd10g);
}
static int sparx5_serdes_cmu_enable(struct sparx5_serdes_private *priv)
{
int idx, err = 0;
if (!priv->cmu_enabled) {
for (idx = 0; idx < SPX5_CMU_MAX; idx++) {
err = sparx5_cmu_cfg(priv, idx);
if (err) {
dev_err(priv->dev, "CMU %u, error: %d\n", idx, err);
goto leave;
}
}
priv->cmu_enabled = true;
}
leave:
return err;
}
static int sparx5_serdes_get_serdesmode(phy_interface_t portmode, int speed)
{
switch (portmode) {
case PHY_INTERFACE_MODE_1000BASEX:
case PHY_INTERFACE_MODE_2500BASEX:
if (speed == SPEED_2500)
return SPX5_SD_MODE_2G5;
if (speed == SPEED_100)
return SPX5_SD_MODE_100FX;
return SPX5_SD_MODE_1000BASEX;
case PHY_INTERFACE_MODE_SGMII:
/* The same Serdes mode is used for both SGMII and 1000BaseX */
return SPX5_SD_MODE_1000BASEX;
case PHY_INTERFACE_MODE_QSGMII:
return SPX5_SD_MODE_QSGMII;
case PHY_INTERFACE_MODE_10GBASER:
return SPX5_SD_MODE_SFI;
default:
return -EINVAL;
}
}
static int sparx5_serdes_config(struct sparx5_serdes_macro *macro)
{
struct device *dev = macro->priv->dev;
int serdesmode;
int err;
err = sparx5_serdes_cmu_enable(macro->priv);
if (err)
return err;
serdesmode = sparx5_serdes_get_serdesmode(macro->portmode, macro->speed);
if (serdesmode < 0) {
dev_err(dev, "SerDes %u, interface not supported: %s\n",
macro->sidx,
phy_modes(macro->portmode));
return serdesmode;
}
macro->serdesmode = serdesmode;
sparx5_serdes_clock_config(macro);
if (macro->serdestype == SPX5_SDT_25G)
err = sparx5_sd25g28_config(macro, false);
else
err = sparx5_sd10g28_config(macro, false);
if (err) {
dev_err(dev, "SerDes %u, config error: %d\n",
macro->sidx, err);
}
return err;
}
static int sparx5_serdes_power_on(struct phy *phy)
{
struct sparx5_serdes_macro *macro = phy_get_drvdata(phy);
return sparx5_serdes_power_save(macro, false);
}
static int sparx5_serdes_power_off(struct phy *phy)
{
struct sparx5_serdes_macro *macro = phy_get_drvdata(phy);
return sparx5_serdes_power_save(macro, true);
}
static int sparx5_serdes_set_mode(struct phy *phy, enum phy_mode mode, int submode)
{
struct sparx5_serdes_macro *macro;
if (mode != PHY_MODE_ETHERNET)
return -EINVAL;
switch (submode) {
case PHY_INTERFACE_MODE_1000BASEX:
case PHY_INTERFACE_MODE_2500BASEX:
case PHY_INTERFACE_MODE_SGMII:
case PHY_INTERFACE_MODE_QSGMII:
case PHY_INTERFACE_MODE_10GBASER:
macro = phy_get_drvdata(phy);
macro->portmode = submode;
sparx5_serdes_config(macro);
return 0;
default:
return -EINVAL;
}
}
static int sparx5_serdes_set_media(struct phy *phy, enum phy_media media)
{
struct sparx5_serdes_macro *macro = phy_get_drvdata(phy);
if (media != macro->media) {
macro->media = media;
if (macro->serdesmode != SPX5_SD_MODE_NONE)
sparx5_serdes_config(macro);
}
return 0;
}
static int sparx5_serdes_set_speed(struct phy *phy, int speed)
{
struct sparx5_serdes_macro *macro = phy_get_drvdata(phy);
if (macro->sidx < SPX5_SERDES_10G_START && speed > SPEED_5000)
return -EINVAL;
if (macro->sidx < SPX5_SERDES_25G_START && speed > SPEED_10000)
return -EINVAL;
if (speed != macro->speed) {
macro->speed = speed;
if (macro->serdesmode != SPX5_SD_MODE_NONE)
sparx5_serdes_config(macro);
}
return 0;
}
static int sparx5_serdes_reset(struct phy *phy)
{
struct sparx5_serdes_macro *macro = phy_get_drvdata(phy);
int err;
err = sparx5_serdes_cmu_enable(macro->priv);
if (err)
return err;
if (macro->serdestype == SPX5_SDT_25G)
err = sparx5_sd25g28_config(macro, true);
else
err = sparx5_sd10g28_config(macro, true);
if (err) {
dev_err(&phy->dev, "SerDes %u, reset error: %d\n",
macro->sidx, err);
}
return err;
}
static int sparx5_serdes_validate(struct phy *phy, enum phy_mode mode,
int submode,
union phy_configure_opts *opts)
{
struct sparx5_serdes_macro *macro = phy_get_drvdata(phy);
if (mode != PHY_MODE_ETHERNET)
return -EINVAL;
if (macro->speed == 0)
return -EINVAL;
if (macro->sidx < SPX5_SERDES_10G_START && macro->speed > SPEED_5000)
return -EINVAL;
if (macro->sidx < SPX5_SERDES_25G_START && macro->speed > SPEED_10000)
return -EINVAL;
switch (submode) {
case PHY_INTERFACE_MODE_1000BASEX:
if (macro->speed != SPEED_100 && /* This is for 100BASE-FX */
macro->speed != SPEED_1000)
return -EINVAL;
break;
case PHY_INTERFACE_MODE_SGMII:
case PHY_INTERFACE_MODE_2500BASEX:
case PHY_INTERFACE_MODE_QSGMII:
if (macro->speed >= SPEED_5000)
return -EINVAL;
break;
case PHY_INTERFACE_MODE_10GBASER:
if (macro->speed < SPEED_5000)
return -EINVAL;
break;
default:
return -EINVAL;
}
return 0;
}
static const struct phy_ops sparx5_serdes_ops = {
.power_on = sparx5_serdes_power_on,
.power_off = sparx5_serdes_power_off,
.set_mode = sparx5_serdes_set_mode,
.set_media = sparx5_serdes_set_media,
.set_speed = sparx5_serdes_set_speed,
.reset = sparx5_serdes_reset,
.validate = sparx5_serdes_validate,
.owner = THIS_MODULE,
};
static int sparx5_phy_create(struct sparx5_serdes_private *priv,
int idx, struct phy **phy)
{
struct sparx5_serdes_macro *macro;
*phy = devm_phy_create(priv->dev, NULL, &sparx5_serdes_ops);
if (IS_ERR(*phy))
return PTR_ERR(*phy);
macro = devm_kzalloc(priv->dev, sizeof(*macro), GFP_KERNEL);
if (!macro)
return -ENOMEM;
macro->sidx = idx;
macro->priv = priv;
macro->speed = SPEED_UNKNOWN;
if (idx < SPX5_SERDES_10G_START) {
macro->serdestype = SPX5_SDT_6G;
macro->stpidx = macro->sidx;
} else if (idx < SPX5_SERDES_25G_START) {
macro->serdestype = SPX5_SDT_10G;
macro->stpidx = macro->sidx - SPX5_SERDES_10G_START;
} else {
macro->serdestype = SPX5_SDT_25G;
macro->stpidx = macro->sidx - SPX5_SERDES_25G_START;
}
phy_set_drvdata(*phy, macro);
return 0;
}
static struct sparx5_serdes_io_resource sparx5_serdes_iomap[] = {
{ TARGET_SD_CMU, 0x0 }, /* 0x610808000: sd_cmu_0 */
{ TARGET_SD_CMU + 1, 0x8000 }, /* 0x610810000: sd_cmu_1 */
{ TARGET_SD_CMU + 2, 0x10000 }, /* 0x610818000: sd_cmu_2 */
{ TARGET_SD_CMU + 3, 0x18000 }, /* 0x610820000: sd_cmu_3 */
{ TARGET_SD_CMU + 4, 0x20000 }, /* 0x610828000: sd_cmu_4 */
{ TARGET_SD_CMU + 5, 0x28000 }, /* 0x610830000: sd_cmu_5 */
{ TARGET_SD_CMU + 6, 0x30000 }, /* 0x610838000: sd_cmu_6 */
{ TARGET_SD_CMU + 7, 0x38000 }, /* 0x610840000: sd_cmu_7 */
{ TARGET_SD_CMU + 8, 0x40000 }, /* 0x610848000: sd_cmu_8 */
{ TARGET_SD_CMU_CFG, 0x48000 }, /* 0x610850000: sd_cmu_cfg_0 */
{ TARGET_SD_CMU_CFG + 1, 0x50000 }, /* 0x610858000: sd_cmu_cfg_1 */
{ TARGET_SD_CMU_CFG + 2, 0x58000 }, /* 0x610860000: sd_cmu_cfg_2 */
{ TARGET_SD_CMU_CFG + 3, 0x60000 }, /* 0x610868000: sd_cmu_cfg_3 */
{ TARGET_SD_CMU_CFG + 4, 0x68000 }, /* 0x610870000: sd_cmu_cfg_4 */
{ TARGET_SD_CMU_CFG + 5, 0x70000 }, /* 0x610878000: sd_cmu_cfg_5 */
{ TARGET_SD_CMU_CFG + 6, 0x78000 }, /* 0x610880000: sd_cmu_cfg_6 */
{ TARGET_SD_CMU_CFG + 7, 0x80000 }, /* 0x610888000: sd_cmu_cfg_7 */
{ TARGET_SD_CMU_CFG + 8, 0x88000 }, /* 0x610890000: sd_cmu_cfg_8 */
{ TARGET_SD6G_LANE, 0x90000 }, /* 0x610898000: sd6g_lane_0 */
{ TARGET_SD6G_LANE + 1, 0x98000 }, /* 0x6108a0000: sd6g_lane_1 */
{ TARGET_SD6G_LANE + 2, 0xa0000 }, /* 0x6108a8000: sd6g_lane_2 */
{ TARGET_SD6G_LANE + 3, 0xa8000 }, /* 0x6108b0000: sd6g_lane_3 */
{ TARGET_SD6G_LANE + 4, 0xb0000 }, /* 0x6108b8000: sd6g_lane_4 */
{ TARGET_SD6G_LANE + 5, 0xb8000 }, /* 0x6108c0000: sd6g_lane_5 */
{ TARGET_SD6G_LANE + 6, 0xc0000 }, /* 0x6108c8000: sd6g_lane_6 */
{ TARGET_SD6G_LANE + 7, 0xc8000 }, /* 0x6108d0000: sd6g_lane_7 */
{ TARGET_SD6G_LANE + 8, 0xd0000 }, /* 0x6108d8000: sd6g_lane_8 */
{ TARGET_SD6G_LANE + 9, 0xd8000 }, /* 0x6108e0000: sd6g_lane_9 */
{ TARGET_SD6G_LANE + 10, 0xe0000 }, /* 0x6108e8000: sd6g_lane_10 */
{ TARGET_SD6G_LANE + 11, 0xe8000 }, /* 0x6108f0000: sd6g_lane_11 */
{ TARGET_SD6G_LANE + 12, 0xf0000 }, /* 0x6108f8000: sd6g_lane_12 */
{ TARGET_SD10G_LANE, 0xf8000 }, /* 0x610900000: sd10g_lane_0 */
{ TARGET_SD10G_LANE + 1, 0x100000 }, /* 0x610908000: sd10g_lane_1 */
{ TARGET_SD10G_LANE + 2, 0x108000 }, /* 0x610910000: sd10g_lane_2 */
{ TARGET_SD10G_LANE + 3, 0x110000 }, /* 0x610918000: sd10g_lane_3 */
{ TARGET_SD_LANE, 0x1a0000 }, /* 0x6109a8000: sd_lane_0 */
{ TARGET_SD_LANE + 1, 0x1a8000 }, /* 0x6109b0000: sd_lane_1 */
{ TARGET_SD_LANE + 2, 0x1b0000 }, /* 0x6109b8000: sd_lane_2 */
{ TARGET_SD_LANE + 3, 0x1b8000 }, /* 0x6109c0000: sd_lane_3 */
{ TARGET_SD_LANE + 4, 0x1c0000 }, /* 0x6109c8000: sd_lane_4 */
{ TARGET_SD_LANE + 5, 0x1c8000 }, /* 0x6109d0000: sd_lane_5 */
{ TARGET_SD_LANE + 6, 0x1d0000 }, /* 0x6109d8000: sd_lane_6 */
{ TARGET_SD_LANE + 7, 0x1d8000 }, /* 0x6109e0000: sd_lane_7 */
{ TARGET_SD_LANE + 8, 0x1e0000 }, /* 0x6109e8000: sd_lane_8 */
{ TARGET_SD_LANE + 9, 0x1e8000 }, /* 0x6109f0000: sd_lane_9 */
{ TARGET_SD_LANE + 10, 0x1f0000 }, /* 0x6109f8000: sd_lane_10 */
{ TARGET_SD_LANE + 11, 0x1f8000 }, /* 0x610a00000: sd_lane_11 */
{ TARGET_SD_LANE + 12, 0x200000 }, /* 0x610a08000: sd_lane_12 */
{ TARGET_SD_LANE + 13, 0x208000 }, /* 0x610a10000: sd_lane_13 */
{ TARGET_SD_LANE + 14, 0x210000 }, /* 0x610a18000: sd_lane_14 */
{ TARGET_SD_LANE + 15, 0x218000 }, /* 0x610a20000: sd_lane_15 */
{ TARGET_SD_LANE + 16, 0x220000 }, /* 0x610a28000: sd_lane_16 */
{ TARGET_SD_CMU + 9, 0x400000 }, /* 0x610c08000: sd_cmu_9 */
{ TARGET_SD_CMU + 10, 0x408000 }, /* 0x610c10000: sd_cmu_10 */
{ TARGET_SD_CMU + 11, 0x410000 }, /* 0x610c18000: sd_cmu_11 */
{ TARGET_SD_CMU + 12, 0x418000 }, /* 0x610c20000: sd_cmu_12 */
{ TARGET_SD_CMU + 13, 0x420000 }, /* 0x610c28000: sd_cmu_13 */
{ TARGET_SD_CMU_CFG + 9, 0x428000 }, /* 0x610c30000: sd_cmu_cfg_9 */
{ TARGET_SD_CMU_CFG + 10, 0x430000 }, /* 0x610c38000: sd_cmu_cfg_10 */
{ TARGET_SD_CMU_CFG + 11, 0x438000 }, /* 0x610c40000: sd_cmu_cfg_11 */
{ TARGET_SD_CMU_CFG + 12, 0x440000 }, /* 0x610c48000: sd_cmu_cfg_12 */
{ TARGET_SD_CMU_CFG + 13, 0x448000 }, /* 0x610c50000: sd_cmu_cfg_13 */
{ TARGET_SD10G_LANE + 4, 0x450000 }, /* 0x610c58000: sd10g_lane_4 */
{ TARGET_SD10G_LANE + 5, 0x458000 }, /* 0x610c60000: sd10g_lane_5 */
{ TARGET_SD10G_LANE + 6, 0x460000 }, /* 0x610c68000: sd10g_lane_6 */
{ TARGET_SD10G_LANE + 7, 0x468000 }, /* 0x610c70000: sd10g_lane_7 */
{ TARGET_SD10G_LANE + 8, 0x470000 }, /* 0x610c78000: sd10g_lane_8 */
{ TARGET_SD10G_LANE + 9, 0x478000 }, /* 0x610c80000: sd10g_lane_9 */
{ TARGET_SD10G_LANE + 10, 0x480000 }, /* 0x610c88000: sd10g_lane_10 */
{ TARGET_SD10G_LANE + 11, 0x488000 }, /* 0x610c90000: sd10g_lane_11 */
{ TARGET_SD25G_LANE, 0x490000 }, /* 0x610c98000: sd25g_lane_0 */
{ TARGET_SD25G_LANE + 1, 0x498000 }, /* 0x610ca0000: sd25g_lane_1 */
{ TARGET_SD25G_LANE + 2, 0x4a0000 }, /* 0x610ca8000: sd25g_lane_2 */
{ TARGET_SD25G_LANE + 3, 0x4a8000 }, /* 0x610cb0000: sd25g_lane_3 */
{ TARGET_SD25G_LANE + 4, 0x4b0000 }, /* 0x610cb8000: sd25g_lane_4 */
{ TARGET_SD25G_LANE + 5, 0x4b8000 }, /* 0x610cc0000: sd25g_lane_5 */
{ TARGET_SD25G_LANE + 6, 0x4c0000 }, /* 0x610cc8000: sd25g_lane_6 */
{ TARGET_SD25G_LANE + 7, 0x4c8000 }, /* 0x610cd0000: sd25g_lane_7 */
{ TARGET_SD_LANE + 17, 0x550000 }, /* 0x610d58000: sd_lane_17 */
{ TARGET_SD_LANE + 18, 0x558000 }, /* 0x610d60000: sd_lane_18 */
{ TARGET_SD_LANE + 19, 0x560000 }, /* 0x610d68000: sd_lane_19 */
{ TARGET_SD_LANE + 20, 0x568000 }, /* 0x610d70000: sd_lane_20 */
{ TARGET_SD_LANE + 21, 0x570000 }, /* 0x610d78000: sd_lane_21 */
{ TARGET_SD_LANE + 22, 0x578000 }, /* 0x610d80000: sd_lane_22 */
{ TARGET_SD_LANE + 23, 0x580000 }, /* 0x610d88000: sd_lane_23 */
{ TARGET_SD_LANE + 24, 0x588000 }, /* 0x610d90000: sd_lane_24 */
{ TARGET_SD_LANE_25G, 0x590000 }, /* 0x610d98000: sd_lane_25g_25 */
{ TARGET_SD_LANE_25G + 1, 0x598000 }, /* 0x610da0000: sd_lane_25g_26 */
{ TARGET_SD_LANE_25G + 2, 0x5a0000 }, /* 0x610da8000: sd_lane_25g_27 */
{ TARGET_SD_LANE_25G + 3, 0x5a8000 }, /* 0x610db0000: sd_lane_25g_28 */
{ TARGET_SD_LANE_25G + 4, 0x5b0000 }, /* 0x610db8000: sd_lane_25g_29 */
{ TARGET_SD_LANE_25G + 5, 0x5b8000 }, /* 0x610dc0000: sd_lane_25g_30 */
{ TARGET_SD_LANE_25G + 6, 0x5c0000 }, /* 0x610dc8000: sd_lane_25g_31 */
{ TARGET_SD_LANE_25G + 7, 0x5c8000 }, /* 0x610dd0000: sd_lane_25g_32 */
};
/* Client lookup function, uses serdes index */
static struct phy *sparx5_serdes_xlate(struct device *dev,
struct of_phandle_args *args)
{
struct sparx5_serdes_private *priv = dev_get_drvdata(dev);
int idx;
unsigned int sidx;
if (args->args_count != 1)
return ERR_PTR(-EINVAL);
sidx = args->args[0];
/* Check validity: ERR_PTR(-ENODEV) if not valid */
for (idx = 0; idx < SPX5_SERDES_MAX; idx++) {
struct sparx5_serdes_macro *macro =
phy_get_drvdata(priv->phys[idx]);
if (sidx != macro->sidx)
continue;
return priv->phys[idx];
}
return ERR_PTR(-ENODEV);
}
static int sparx5_serdes_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct sparx5_serdes_private *priv;
struct phy_provider *provider;
struct resource *iores;
void __iomem *iomem;
unsigned long clock;
struct clk *clk;
int idx;
int err;
if (!np && !pdev->dev.platform_data)
return -ENODEV;
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
platform_set_drvdata(pdev, priv);
priv->dev = &pdev->dev;
/* Get coreclock */
clk = devm_clk_get(priv->dev, NULL);
if (IS_ERR(clk)) {
dev_err(priv->dev, "Failed to get coreclock\n");
return PTR_ERR(clk);
}
clock = clk_get_rate(clk);
if (clock == 0) {
dev_err(priv->dev, "Invalid coreclock %lu\n", clock);
return -EINVAL;
}
priv->coreclock = clock;
iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!iores) {
dev_err(priv->dev, "Invalid resource\n");
return -EINVAL;
}
iomem = devm_ioremap(priv->dev, iores->start, resource_size(iores));
if (!iomem) {
dev_err(priv->dev, "Unable to get serdes registers: %s\n",
iores->name);
return -ENOMEM;
}
for (idx = 0; idx < ARRAY_SIZE(sparx5_serdes_iomap); idx++) {
struct sparx5_serdes_io_resource *iomap = &sparx5_serdes_iomap[idx];
priv->regs[iomap->id] = iomem + iomap->offset;
}
for (idx = 0; idx < SPX5_SERDES_MAX; idx++) {
err = sparx5_phy_create(priv, idx, &priv->phys[idx]);
if (err)
return err;
}
provider = devm_of_phy_provider_register(priv->dev, sparx5_serdes_xlate);
return PTR_ERR_OR_ZERO(provider);
}
static const struct of_device_id sparx5_serdes_match[] = {
{ .compatible = "microchip,sparx5-serdes" },
{ }
};
MODULE_DEVICE_TABLE(of, sparx5_serdes_match);
static struct platform_driver sparx5_serdes_driver = {
.probe = sparx5_serdes_probe,
.driver = {
.name = "sparx5-serdes",
.of_match_table = sparx5_serdes_match,
},
};
module_platform_driver(sparx5_serdes_driver);
MODULE_DESCRIPTION("Microchip Sparx5 switch serdes driver");
MODULE_AUTHOR("Steen Hegelund <steen.hegelund@microchip.com>");
MODULE_LICENSE("GPL v2");
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