src/soc/intel/xeon_sp/spr/crashlog.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <device/pci_ops.h>
   4 #include <soc/crashlog.h>
   5 #include <soc/pci_devs.h>
   6
   7 static uint32_t read_msm_config_reg(uint32_t func, uint32_t reg)
   8 {
   9         uint32_t pcie_offset = PCI_DEV(MSM_BUS, MSM_DEV, func);
  10         return pci_s_read_config32(pcie_offset, reg);
  11 }
  12
  13 static void write_msm_config_reg(uint32_t func, uint32_t reg, uint32_t value)
  14 {
  15         uint32_t pcie_offset = PCI_DEV(MSM_BUS, MSM_DEV, func);
  16         pci_s_write_config32(pcie_offset, reg, value);
  17 }
  18
  19 void disable_cpu_crashlog(void)
  20 {
  21         uint32_t ctl;
  22         ctl = read_msm_config_reg(MSM_FUN, CRASHLOG_CTL);
  23         ctl |= CRASHLOG_CTL_DIS;
  24         write_msm_config_reg(MSM_FUN, CRASHLOG_CTL, ctl);
  25         ctl = read_msm_config_reg(MSM_FUN_PMON, BIOS_CRASHLOG_CTL);
  26         ctl |= CRASHLOG_CTL_DIS;
  27         write_msm_config_reg(MSM_FUN_PMON, BIOS_CRASHLOG_CTL, ctl);
  28 }