src/mainboard/amd/pademelon/fan_init.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <bootstate.h>
   4 #include <superio/fintek/common/fan_control.h>
   5 #include <amdblocks/lpc.h>
   6 #include <device/pci_ops.h>
   7 #include <soc/pci_devs.h>
   8
   9 #define CPU_FAN         1
  10 #define SYSTEM_FAN      2
  11
  12 /* Boundaries in celsius, sections in percent */
  13 static u8 cpu_boudaries[FINTEK_BOUNDARIES_SIZE] = {
  14         80,
  15         65,
  16         50,
  17         35
  18 };
  19
  20 static u8 system_boudaries[FINTEK_BOUNDARIES_SIZE] = {
  21         70,
  22         55,
  23         40,
  24         25
  25 };
  26
  27 static u8 cpu_section[FINTEK_SECTIONS_SIZE] = {
  28         100,
  29         85,
  30         70,
  31         55,
  32         40
  33 };
  34
  35 static u8 system_section[FINTEK_SECTIONS_SIZE] = {
  36         100,
  37         85,
  38         70,
  39         55,
  40         40
  41 };
  42
  43 struct fintek_fan cpu_fan = {
  44         CPU_FAN,
  45         IGNORE_SENSOR,
  46         TEMP_SENSOR_DEFAULT,
  47         FAN_TEMP_TSI,
  48         FAN_TYPE_PWM_PUSH_PULL,
  49         FAN_MODE_DEFAULT,
  50         FAN_PWM_FREQ_23500,
  51         FAN_UP_RATE_10HZ,
  52         FAN_DOWN_RATE_10HZ,
  53         FAN_FOLLOW_INTERPOLATION,
  54         cpu_boudaries,
  55         cpu_section
  56 };
  57
  58 struct fintek_fan system_fan = {
  59         SYSTEM_FAN,
  60         EXTERNAL_SENSOR2,
  61         TEMP_SENSOR_BJT,
  62         FAN_TEMP_EXTERNAL_2,
  63         FAN_TYPE_DAC_POWER,
  64         FAN_MODE_DEFAULT,
  65         FAN_PWM_FREQ_23500,
  66         FAN_UP_RATE_10HZ,
  67         FAN_DOWN_RATE_10HZ,
  68         FAN_FOLLOW_INTERPOLATION,
  69         system_boudaries,
  70         system_section
  71 };
  72
  73 static void init_fan_control(void *unused)
  74 {
  75         /* Open a LPC IO access to 0x0220-0x0227 */
  76         pci_or_config32(SOC_LPC_DEV, LPC_IO_PORT_DECODE_ENABLE, DECODE_ENABLE_SERIAL_PORT2);
  77
  78         set_fan(&cpu_fan);
  79         set_fan(&system_fan);
  80 }
  81
  82 BOOT_STATE_INIT_ENTRY(BS_POST_DEVICE, BS_ON_ENTRY, init_fan_control, NULL);