LXR uboot/arch/x86/cpu/quark/mrc

   1/* SPDX-License-Identifier: Intel */
   2/*
   3 * Copyright (C) 2013, Intel Corporation
   4 * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
   5 *
   6 * Ported from Intel released Quark UEFI BIOS
   7 * QuarkSocPkg/QuarkNorthCluster/MemoryInit/Pei
   8 */
   9
  10#ifndef _MRC_UTIL_H_
  11#define _MRC_UTIL_H_
  12
  13#include <log.h>
  14
  15/* Turn on this macro to enable MRC debugging output */
  16#undef  MRC_DEBUG
  17
  18/* MRC Debug Support */
  19#define DPF             debug_cond
  20
  21/* debug print type */
  22
  23#ifdef MRC_DEBUG
  24#define D_ERROR         0x0001
  25#define D_INFO          0x0002
  26#define D_REGRD         0x0004
  27#define D_REGWR         0x0008
  28#define D_FCALL         0x0010
  29#define D_TRN           0x0020
  30#define D_TIME          0x0040
  31#else
  32#define D_ERROR         0
  33#define D_INFO          0
  34#define D_REGRD         0
  35#define D_REGWR         0
  36#define D_FCALL         0
  37#define D_TRN           0
  38#define D_TIME          0
  39#endif
  40
  41#define ENTERFN(...)    debug_cond(D_FCALL, "<%s>\n", __func__)
  42#define LEAVEFN(...)    debug_cond(D_FCALL, "</%s>\n", __func__)
  43#define REPORTFN(...)   debug_cond(D_FCALL, "<%s/>\n", __func__)
  44
  45/* Message Bus Port */
  46#define MEM_CTLR        0x01
  47#define HOST_BRIDGE     0x03
  48#define MEM_MGR         0x05
  49#define HTE             0x11
  50#define DDRPHY          0x12
  51
  52/* number of sample points */
  53#define SAMPLE_CNT      3
  54/* number of PIs to increment per sample */
  55#define SAMPLE_DLY      26
  56
  57enum {
  58        /* indicates to decrease delays when looking for edge */
  59        BACKWARD,
  60        /* indicates to increase delays when looking for edge */
  61        FORWARD
  62};
  63
  64enum {
  65        RCVN,
  66        WDQS,
  67        WDQX,
  68        RDQS,
  69        VREF,
  70        WCMD,
  71        WCTL,
  72        WCLK,
  73        MAX_ALGOS,
  74};
  75
  76void mrc_write_mask(u32 unit, u32 addr, u32 data, u32 mask);
  77void mrc_alt_write_mask(u32 unit, u32 addr, u32 data, u32 mask);
  78void mrc_post_code(uint8_t major, uint8_t minor);
  79void delay_n(uint32_t ns);
  80void delay_u(uint32_t ms);
  81void select_mem_mgr(void);
  82void select_hte(void);
  83void dram_init_command(uint32_t data);
  84void dram_wake_command(void);
  85void training_message(uint8_t channel, uint8_t rank, uint8_t byte_lane);
  86
  87void set_rcvn(uint8_t channel, uint8_t rank,
  88              uint8_t byte_lane, uint32_t pi_count);
  89uint32_t get_rcvn(uint8_t channel, uint8_t rank, uint8_t byte_lane);
  90void set_rdqs(uint8_t channel, uint8_t rank,
  91              uint8_t byte_lane, uint32_t pi_count);
  92uint32_t get_rdqs(uint8_t channel, uint8_t rank, uint8_t byte_lane);
  93void set_wdqs(uint8_t channel, uint8_t rank,
  94              uint8_t byte_lane, uint32_t pi_count);
  95uint32_t get_wdqs(uint8_t channel, uint8_t rank, uint8_t byte_lane);
  96void set_wdq(uint8_t channel, uint8_t rank,
  97             uint8_t byte_lane, uint32_t pi_count);
  98uint32_t get_wdq(uint8_t channel, uint8_t rank, uint8_t byte_lane);
  99void set_wcmd(uint8_t channel, uint32_t pi_count);
 100uint32_t get_wcmd(uint8_t channel);
 101void set_wclk(uint8_t channel, uint8_t rank, uint32_t pi_count);
 102uint32_t get_wclk(uint8_t channel, uint8_t rank);
 103void set_wctl(uint8_t channel, uint8_t rank, uint32_t pi_count);
 104uint32_t get_wctl(uint8_t channel, uint8_t rank);
 105void set_vref(uint8_t channel, uint8_t byte_lane, uint32_t setting);
 106uint32_t get_vref(uint8_t channel, uint8_t byte_lane);
 107
 108uint32_t get_addr(uint8_t channel, uint8_t rank);
 109uint32_t sample_dqs(struct mrc_params *mrc_params, uint8_t channel,
 110                    uint8_t rank, bool rcvn);
 111void find_rising_edge(struct mrc_params *mrc_params, uint32_t delay[],
 112                      uint8_t channel, uint8_t rank, bool rcvn);
 113uint32_t byte_lane_mask(struct mrc_params *mrc_params);
 114uint32_t check_rw_coarse(struct mrc_params *mrc_params, uint32_t address);
 115uint32_t check_bls_ex(struct mrc_params *mrc_params, uint32_t address);
 116void lfsr32(uint32_t *lfsr_ptr);
 117void clear_pointers(void);
 118void print_timings(struct mrc_params *mrc_params);
 119
 120#endif /* _MRC_UTIL_H_ */
 121