openbcm

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bondoptions.c (3388B)

      1 /*
      2  * 
      3  * This license is set out in https://raw.githubusercontent.com/Broadcom-Network-Switching-Software/OpenBCM/master/Legal/LICENSE file.
      4  * 
      5  * Copyright 2007-2019 Broadcom Inc. All rights reserved.
      6  *
      7  * File:        bondoptions.c
      8  * Purpose:     Populates Tomahawk3 Bond Options Info.
      9  * Requires:    SOC Common Bond Options Initializer.
     10  */
     11 
     12 #include <shared/bsl.h>
     13 
     14 #include <soc/defs.h>
     15 
     16 #ifdef BCM_TOMAHAWK3_SUPPORT
     17 
     18 #include <shared/bitop.h>
     19 #include <soc/iproc.h>
     20 #include <soc/trident3.h>
     21 #include <soc/bondoptions.h>
     22 
     23 /*
     24  * Function to conver to AVS encodings to
     25  * real voltages.
     26  * unit is 0.1 mV.
     27  */
     28 STATIC int
     29 _soc_tomahawk3_bond_option_to_avs_status(int unit, int val)
     30 {
     31     int vol;
     32 
     33     switch (val) {
     34     case 0x70:
     35         vol = 9125;
     36         break;
     37     case 0x73:
     38         vol = 8937;
     39         break;
     40     case 0x76:
     41         vol = 8750;
     42         break;
     43     case 0x79:
     44         vol = 8562;
     45         break;
     46     case 0x7a:
     47         vol = 8500;
     48         break;
     49     case 0x7e:
     50         vol = 8250;
     51         break;
     52     case 0x82:
     53         vol = 8000;
     54         break;
     55     case 0x86:
     56         vol = 7750;
     57         break;
     58     default:
     59         vol = 8937;
     60         break;
     61     }
     62 
     63     return vol;
     64 }
     65 
     66 /*
     67  * Function to initialize the bondoptions cache based on the
     68  * Bond Info read from the relevant registers.
     69  */
     70 int
     71 soc_tomahawk3_bond_info_init(int unit)
     72 {
     73     soc_bond_info_t *bond_info = SOC_BOND_INFO(unit);
     74     uint32 addr, val;
     75     int i;
     76 
     77     soc_reg_t soc_tomahawk3_bond_info_regs[] = {
     78         DMU_PCU_OTP_CONFIG_0r,
     79         DMU_PCU_OTP_CONFIG_1r,
     80         DMU_PCU_OTP_CONFIG_2r,
     81         DMU_PCU_OTP_CONFIG_3r,
     82         DMU_PCU_OTP_CONFIG_4r,
     83         DMU_PCU_OTP_CONFIG_5r,
     84         DMU_PCU_OTP_CONFIG_6r,
     85         DMU_PCU_OTP_CONFIG_7r,
     86         DMU_PCU_OTP_CONFIG_8r,
     87         DMU_PCU_OTP_CONFIG_9r,
     88         DMU_PCU_OTP_CONFIG_10r,
     89         DMU_PCU_OTP_CONFIG_11r,
     90         DMU_PCU_OTP_CONFIG_12r,
     91         DMU_PCU_OTP_CONFIG_13r,
     92         DMU_PCU_OTP_CONFIG_14r,
     93         DMU_PCU_OTP_CONFIG_15r,
     94         DMU_PCU_OTP_CONFIG_16r,
     95         DMU_PCU_OTP_CONFIG_17r,
     96         DMU_PCU_OTP_CONFIG_18r,
     97         DMU_PCU_OTP_CONFIG_19r,
     98         DMU_PCU_OTP_CONFIG_20r,
     99         DMU_PCU_OTP_CONFIG_21r,
    100         DMU_PCU_OTP_CONFIG_22r,
    101         DMU_PCU_OTP_CONFIG_23r,
    102         DMU_PCU_OTP_CONFIG_24r,
    103         DMU_PCU_OTP_CONFIG_25r,
    104         DMU_PCU_OTP_CONFIG_26r,
    105         DMU_PCU_OTP_CONFIG_27r,
    106         DMU_PCU_OTP_CONFIG_28r,
    107         DMU_PCU_OTP_CONFIG_29r,
    108         DMU_PCU_OTP_CONFIG_30r,
    109         DMU_PCU_OTP_CONFIG_31r
    110     };
    111     int reg_num = COUNTOF(soc_tomahawk3_bond_info_regs);
    112     SHR_BITDCL bond_info_regval[_SHR_BITDCLSIZE(COUNTOF(soc_tomahawk3_bond_info_regs) * 32)] = {0};
    113 
    114     for (i = 0; i < reg_num; i++) {
    115         addr = soc_reg_addr(unit, soc_tomahawk3_bond_info_regs[i], REG_PORT_ANY, 0);
    116         soc_iproc_getreg(unit, addr, &val);
    117         SHR_BITCOPY_RANGE(bond_info_regval, i * 32, &val, 0, 32);
    118     }
    119 
    120     SOC_BOND_OPTIONS_COPY(bond_info->rev_id, uint16, bond_info_regval, 0, 7);
    121     SOC_BOND_OPTIONS_COPY(bond_info->dev_id, uint16, bond_info_regval, 8, 23);
    122     SOC_BOND_OPTIONS_COPY(bond_info->device_skew, uint32, bond_info_regval, 24, 27);
    123 
    124     /* AVS Status */
    125     SOC_BOND_OPTIONS_COPY(val, uint32, bond_info_regval, 136, 143);
    126     bond_info->avs_status = _soc_tomahawk3_bond_option_to_avs_status(unit, val);
    127 
    128     return SOC_E_NONE;
    129 }
    130 
    131 #endif /* BCM_TOMAHAWK3_SUPPORT */
    132