src/mainboard/dell/snb_ivb_workstations/mainboard.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <bootstate.h>
   4 #include <console/console.h>
   5 #include <device/device.h>
   6 #include <device/pci_ops.h>
   7 #include <drivers/intel/gma/int15.h>
   8 #include <southbridge/intel/bd82x6x/pch.h>
   9 #include <southbridge/intel/common/gpio.h>
  10 #include <superio/smsc/sch5545/sch5545.h>
  11
  12 #include <baseboard/sch5545_ec.h>
  13
  14 #define SIO_PORT                                0x2e
  15
  16 #define GPIO_CHASSIS_ID0                        1
  17 #define GPIO_VGA_CABLE_DET_L                    4
  18 #define GPIO_SKU2                               7
  19 #define GPIO_CHASSIS_ID1                        17
  20 /* Internal USB header on mainboard */
  21 #define FLEXBAY_HEADER_CABLE_DET_L              20
  22 #define GPIO_BOARD_REV0                         21
  23 /* Password clear jumper */
  24 #define GPIO_PSWD_CLR                           31
  25 #define GPIO_SKU0                               32
  26 #define GPIO_SKU1                               35
  27 #define GPIO_CHASSIS_ID2                        37
  28 /* Front panel presence */
  29 #define GPIO_FRONT_PANEL_PRESENT_L              39
  30 #define GPIO_INTRUDER_CABLE_DET_L               44
  31 #define GPIO_BOARD_REV1                         46
  32 #define GPIO_BOARD_REV2                         68
  33 /* Front USB 3.0 ports */
  34 #define GPIO_USB_HEADER_DET_L                   69
  35 /* Differentiate between MT/DT on the Medium Tower and Desktop variants */
  36 #define GPIO_FRONT_PANEL_CHASSIS_DET_L          70
  37 /*
  38  * This GPIO is connected to the transistor gate. If high, it will pull the
  39  * HDA_SDO high. When strapped at PCH_PWROK it will enable the Flash Descriptor
  40  * Security Override and disable ME after chipset bringup. Alternative method
  41  * is to use the service jumper on the mainboard.
  42  */
  43 #define GPIO_ME_MFG_MODE                        74
  44
  45 /* These GPIOs are on SCH5545 */
  46
  47 /* Detect if the power switch cable is connected */
  48 #define SIO_GPIO_FP_CBL_DET_L                   25
  49 /* Detect internal speaker connected to front cover */
  50 #define SIO_GPIO_PCSPKR_DET_L                   31
  51
  52 static void mainboard_enable(struct device *dev)
  53 {
  54         int pin_sts;
  55         install_intel_vga_int15_handler(GMA_INT15_ACTIVE_LFP_NONE,
  56                                         GMA_INT15_PANEL_FIT_DEFAULT,
  57                                         GMA_INT15_BOOT_DISPLAY_DEFAULT, 0);
  58
  59         pin_sts = get_gpio(GPIO_CHASSIS_ID0);
  60         pin_sts |= get_gpio(GPIO_CHASSIS_ID1) << 1;
  61         pin_sts |= get_gpio(GPIO_CHASSIS_ID2) << 2;
  62         pin_sts |= get_gpio(GPIO_FRONT_PANEL_CHASSIS_DET_L) << 3;
  63
  64         printk(BIOS_DEBUG, "Chassis type: ");
  65         switch (pin_sts) {
  66         case 0:
  67                 printk(BIOS_DEBUG, "MT\n");
  68                 break;
  69         case 3:
  70         case 11:
  71                 printk(BIOS_DEBUG, "USFF\n");
  72                 break;
  73         case 4:
  74                 /* As per table in schematics, but don't know what this is */
  75                 printk(BIOS_DEBUG, "Comoros\n");
  76                 break;
  77         case 1:
  78         case 9:
  79         case 5:
  80         case 13:
  81                 printk(BIOS_DEBUG, "SFF\n");
  82                 break;
  83         case 8:
  84                 printk(BIOS_DEBUG, "DT\n");
  85                 break;
  86         default:
  87                 printk(BIOS_DEBUG, "Unknown chassis type %u\n", pin_sts);
  88                 break;
  89         }
  90
  91         pin_sts = get_gpio(GPIO_BOARD_REV0);
  92         pin_sts |= get_gpio(GPIO_BOARD_REV1) << 1;
  93         pin_sts |= get_gpio(GPIO_BOARD_REV2) << 2;
  94
  95         printk(BIOS_DEBUG, "Board revision: %d\n", pin_sts);
  96
  97         pin_sts = get_gpio(GPIO_SKU0);
  98         pin_sts |= get_gpio(GPIO_SKU1) << 1;
  99         pin_sts |= get_gpio(GPIO_SKU2) << 2;
 100
 101         printk(BIOS_DEBUG, "SKU ID is %d:", pin_sts);
 102         switch (pin_sts) {
 103         case 0:
 104                 printk(BIOS_DEBUG, "TPM\n");
 105                 break;
 106         case 1:
 107                 printk(BIOS_DEBUG, "TCM\n");
 108                 break;
 109         case 2:
 110                 printk(BIOS_DEBUG, "Non TPM/TCM\n");
 111                 break;
 112         default:
 113                 printk(BIOS_DEBUG, "Unknown/reserved\n");
 114                 break;
 115         }
 116
 117         printk(BIOS_DEBUG, "VGA cable %sconnected\n",
 118                get_gpio(GPIO_VGA_CABLE_DET_L) ? "dis" : "");
 119
 120         printk(BIOS_DEBUG, "Flexbay %sattached to internal USB 2.0 header\n",
 121                get_gpio(FLEXBAY_HEADER_CABLE_DET_L) ? "not " : "");
 122
 123         printk(BIOS_DEBUG, "Password clear jumper %sactive\n",
 124                get_gpio(GPIO_PSWD_CLR) ? "in" : "");
 125
 126         if (!get_gpio(GPIO_FRONT_PANEL_PRESENT_L)) {
 127                 printk(BIOS_DEBUG, "Front panel cable connected\n");
 128         } else {
 129                 printk(BIOS_WARNING, "Front panel cable not connected!\n");
 130                 printk(BIOS_WARNING, "Front USB 2.0 ports, SATA LED, microphone"
 131                        " and speaker jacks will not work!\n");
 132                 printk(BIOS_WARNING, "Check the front panel cable!\n");
 133         }
 134
 135         if (!get_gpio(GPIO_INTRUDER_CABLE_DET_L)) {
 136                 printk(BIOS_DEBUG, "Intruder cable connected\n");
 137         } else {
 138                 printk(BIOS_WARNING, "Intruder cable not connected!\n");
 139                 printk(BIOS_WARNING, "Intrusion detection will not work!\n");
 140                 printk(BIOS_WARNING, "Check the intruder cable!\n");
 141         }
 142
 143         if (!get_gpio(GPIO_USB_HEADER_DET_L)) {
 144                 printk(BIOS_DEBUG, "Front USB 3.0 cable connected\n");
 145         } else {
 146                 printk(BIOS_WARNING, "Front USB 3.0 cable not connected!\n");
 147                 printk(BIOS_WARNING, "Front USB 3.0 ports will not work!\n");
 148                 printk(BIOS_WARNING, "Check the front USB 3.0 cable!\n");
 149         }
 150 }
 151
 152 static void mainboard_final(void *chip_info)
 153 {
 154         int pin_sts;
 155         struct device *dev = pcidev_on_root(0x1f, 0);
 156         const u8 pirq_routing = 11;
 157
 158         pci_write_config8(dev, PIRQA_ROUT, pirq_routing);
 159         pci_write_config8(dev, PIRQB_ROUT, pirq_routing);
 160         pci_write_config8(dev, PIRQC_ROUT, pirq_routing);
 161         pci_write_config8(dev, PIRQD_ROUT, pirq_routing);
 162
 163         pci_write_config8(dev, PIRQE_ROUT, pirq_routing);
 164         pci_write_config8(dev, PIRQF_ROUT, pirq_routing);
 165         pci_write_config8(dev, PIRQG_ROUT, pirq_routing);
 166         pci_write_config8(dev, PIRQH_ROUT, pirq_routing);
 167
 168         pin_sts = sch5545_get_gpio(SIO_PORT, SIO_GPIO_FP_CBL_DET_L);
 169
 170         if (pin_sts != -1) {
 171                 if (pin_sts) {
 172                         printk(BIOS_WARNING, "Power switch cable not connected!\n");
 173                         printk(BIOS_WARNING, "Check power switch cable!\n");
 174                 } else {
 175                         printk(BIOS_DEBUG, "Power switch cable connected\n");
 176                 }
 177         }
 178
 179         pin_sts = sch5545_get_gpio(SIO_PORT, SIO_GPIO_PCSPKR_DET_L);
 180
 181         if (pin_sts != -1)
 182                 printk(BIOS_DEBUG, "Internal chassis PC speaker %sconnected\n",
 183                        pin_sts ? "not " : "");
 184 }
 185
 186 struct chip_operations mainboard_ops = {
 187         .enable_dev = mainboard_enable,
 188         .final = mainboard_final,
 189 };
 190
 191 BOOT_STATE_INIT_ENTRY(BS_POST_DEVICE, BS_ON_EXIT, sch5545_ec_hwm_init, NULL);