src/soc/intel/denverton_ns/fiamux.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <console/console.h>
   4 #include <soc/fiamux.h>
   5
   6 #define FSP_FIAMUX_HOB_GUID                                            \
   7         {                                                              \
   8                 0x26ad492e, 0xf951, 0x4e43,                            \
   9                 {                                                      \
  10                         0xbc, 0x72, 0x22, 0x76, 0x58, 0xb1, 0xf6, 0x23 \
  11                 }                                                      \
  12         }
  13
  14 int get_fiamux_hsio_info(uint16_t num_of_lanes, size_t num_of_entry,
  15                                 BL_HSIO_INFORMATION **config)
  16 {
  17         uint8_t entry;
  18
  19         if ((num_of_lanes == 0) || (num_of_entry == 0) || (*config == NULL))
  20                 return 1;
  21
  22         for (entry = 0; entry < num_of_entry; entry++) {
  23                 if ((*config)[entry].NumLanesSupported == num_of_lanes) {
  24                         *config = &(*config)[entry];
  25                         return 0;
  26                 }
  27         }
  28
  29         return 1;
  30 }
  31
  32 /*
  33 * Display the FIA MUX HOB.
  34 *
  35 *   @param   Pointer of FIA MUX HOB data
  36 *
  37 *   @return  None
  38 *
  39 */
  40 void print_fiamux_config_hob(BL_FIA_MUX_CONFIG_HOB *fiamux_hob_data)
  41 {
  42         /* Display the FIA MUX Configuration */
  43         printk(BIOS_DEBUG, "FIA MUX Configuration in FSP HOB is:\n");
  44
  45         printk(BIOS_DEBUG, "    FiaMuxConfig.SkuNumLanesAllowed = 0x%x\n",
  46                (uint32_t)(fiamux_hob_data->FiaMuxConfig.SkuNumLanesAllowed));
  47
  48         printk(BIOS_DEBUG, "    FiaMuxConfig.FiaMuxConfig = 0x%llx\n",
  49                (uint64_t)(fiamux_hob_data->FiaMuxConfig.FiaMuxConfig
  50                                   .MuxConfiguration.MeFiaMuxLaneConfig));
  51
  52         printk(BIOS_DEBUG,
  53                "    FiaMuxConfig.FiaMuxConfig.SataLaneConfiguration = 0x%llx\n",
  54                (uint64_t)(fiamux_hob_data->FiaMuxConfig.FiaMuxConfig
  55                                   .SataLaneConfiguration.MeFiaSataLaneConfig));
  56
  57         printk(BIOS_DEBUG, "    FiaMuxConfig.FiaMuxConfig."
  58                            "PcieRootPortsConfiguration = 0x%llx\n",
  59                (uint64_t)(fiamux_hob_data->FiaMuxConfig.FiaMuxConfig
  60                                   .PcieRootPortsConfiguration
  61                                   .MeFiaPcieRootPortsConfig));
  62
  63         printk(BIOS_DEBUG, "    FiaMuxConfig.FiaMuxConfigRequest = 0x%llx\n",
  64                (uint64_t)(fiamux_hob_data->FiaMuxConfig.FiaMuxConfigRequest
  65                                   .MuxConfiguration.MeFiaMuxLaneConfig));
  66
  67         printk(BIOS_DEBUG, "    FiaMuxConfig.FiaMuxConfigRequest."
  68                            "SataLaneConfiguration = 0x%llx\n",
  69                (uint64_t)(fiamux_hob_data->FiaMuxConfig.FiaMuxConfigRequest
  70                                   .SataLaneConfiguration.MeFiaSataLaneConfig));
  71
  72         printk(BIOS_DEBUG, "    FiaMuxConfig.FiaMuxConfigRequest."
  73                            "PcieRootPortsConfiguration = 0x%llx\n",
  74                (uint64_t)(fiamux_hob_data->FiaMuxConfig.FiaMuxConfigRequest
  75                                   .PcieRootPortsConfiguration
  76                                   .MeFiaPcieRootPortsConfig));
  77         printk(BIOS_DEBUG,
  78                "    FiaMuxConfigStatus.FiaMuxConfigGetStatus = 0x%x\n",
  79                (uint32_t)(fiamux_hob_data->FiaMuxConfigStatus
  80                                   .FiaMuxConfigGetStatus));
  81
  82         printk(BIOS_DEBUG,
  83                "    FiaMuxConfigStatus.FiaMuxConfigSetStatus = 0x%x\n",
  84                (uint32_t)(fiamux_hob_data->FiaMuxConfigStatus
  85                                   .FiaMuxConfigSetStatus));
  86
  87         printk(BIOS_DEBUG,
  88                "    FiaMuxConfigStatus.FiaMuxConfigSetRequired = 0x%x\n",
  89                (uint8_t)(fiamux_hob_data->FiaMuxConfigStatus
  90                                  .FiaMuxConfigSetRequired));
  91 }
  92
  93 /*
  94 * Get the pointer of FIA MUX HOB data
  95 *
  96 *   @param   Pointer of FIA MUX HOB data
  97 *
  98 *   @return:
  99 *     Non-zero - FIA MUX configuration correct.
 100 *     Zero - Either FIA MUX configuration incorrect or
 101 *     it can not be verified.
 102 */
 103 BL_FIA_MUX_CONFIG_HOB *get_fiamux_hob_data(void)
 104 {
 105         u32 const *fiamux_hob = NULL;
 106         BL_FIA_MUX_CONFIG_HOB *fiamux_hob_data = NULL;
 107         const EFI_GUID fiamux_guid = FSP_FIAMUX_HOB_GUID;
 108         size_t size;
 109
 110         /* Parse FIA MUX configuration HOB */
 111         fiamux_hob = fsp_find_extension_hob_by_guid(
 112                 (uint8_t const *)&fiamux_guid, &size);
 113
 114         if (fiamux_hob == NULL) {
 115                 /* FIA MUX configuration HOB not exist */
 116                 die("FIA MUX Configuration Data Hob does not present!\n");
 117         } else {
 118                 /* Get FIA MUX configuration HOB */
 119                 fiamux_hob_data = (BL_FIA_MUX_CONFIG_HOB *)(fiamux_hob);
 120
 121                 /* Display FIA MUX configuration HOB */
 122                 print_fiamux_config_hob(fiamux_hob_data);
 123         }
 124
 125         return fiamux_hob_data;
 126 }
 127
 128 __weak size_t mainboard_get_hsio_config(BL_HSIO_INFORMATION **p_hsio_config)
 129 {
 130         *p_hsio_config = NULL;
 131         return 0;
 132 }