| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| |
| #include <device/mmio.h> |
| #include <device/pci_ops.h> |
| #include "pch.h" |
| #include "cpu/intel/model_2065x/model_2065x.h" |
| #include <cpu/x86/msr.h> |
| |
| /* Early thermal init, must be done prior to giving ME its memory |
| which is done at the end of raminit. */ |
| void early_thermal_init(void) |
| { |
| pci_devfn_t dev; |
| msr_t msr; |
| |
| dev = PCI_DEV(0x0, 0x1f, 0x6); |
| |
| /* Program address for temporary BAR. */ |
| pci_write_config32(dev, 0x40, 0x40000000); |
| pci_write_config32(dev, 0x44, 0x0); |
| |
| /* Activate temporary BAR. */ |
| pci_write_config32(dev, 0x40, |
| pci_read_config32(dev, 0x40) | 5); |
| |
| /* Perform init. */ |
| /* Configure TJmax. */ |
| msr = rdmsr(MSR_TEMPERATURE_TARGET); |
| write16((u16 *)0x40000012, ((msr.lo >> 16) & 0xff) << 6); |
| /* Northbridge temperature slope and offset. */ |
| write16((u16 *)0x40000016, 0x7746); |
| /* Enable thermal data reporting, processor, PCH and northbridge. */ |
| write16((u16 *)0x4000001a, |
| (read16((u16 *)0x4000001a) & ~0xf) | 0x10f0); |
| |
| /* Disable temporary BAR. */ |
| pci_write_config32(dev, 0x40, |
| pci_read_config32(dev, 0x40) & ~1); |
| pci_write_config32(dev, 0x40, 0); |
| } |