Patrick Georgi | ac95903 | 2020-05-05 22:49:26 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
Vladimir Serbinenko | 1cd937b | 2014-01-09 23:41:48 +0100 | [diff] [blame] | 2 | |
Kyösti Mälkki | 13f6650 | 2019-03-03 08:01:05 +0200 | [diff] [blame] | 3 | #include <device/mmio.h> |
Kyösti Mälkki | f1b58b7 | 2019-03-01 13:43:02 +0200 | [diff] [blame] | 4 | #include <device/pci_ops.h> |
Vladimir Serbinenko | 1cd937b | 2014-01-09 23:41:48 +0100 | [diff] [blame] | 5 | #include "pch.h" |
Vladimir Serbinenko | 2bebc80 | 2014-02-19 22:02:51 +0100 | [diff] [blame] | 6 | #include "cpu/intel/model_2065x/model_2065x.h" |
| 7 | #include <cpu/x86/msr.h> |
Vladimir Serbinenko | 1cd937b | 2014-01-09 23:41:48 +0100 | [diff] [blame] | 8 | |
| 9 | /* Early thermal init, must be done prior to giving ME its memory |
| 10 | which is done at the end of raminit. */ |
| 11 | void early_thermal_init(void) |
| 12 | { |
Antonello Dettori | 040117a | 2016-09-02 09:15:33 +0200 | [diff] [blame] | 13 | pci_devfn_t dev; |
Vladimir Serbinenko | 2bebc80 | 2014-02-19 22:02:51 +0100 | [diff] [blame] | 14 | msr_t msr; |
Vladimir Serbinenko | 1cd937b | 2014-01-09 23:41:48 +0100 | [diff] [blame] | 15 | |
| 16 | dev = PCI_DEV(0x0, 0x1f, 0x6); |
| 17 | |
| 18 | /* Program address for temporary BAR. */ |
| 19 | pci_write_config32(dev, 0x40, 0x40000000); |
| 20 | pci_write_config32(dev, 0x44, 0x0); |
| 21 | |
| 22 | /* Activate temporary BAR. */ |
| 23 | pci_write_config32(dev, 0x40, |
| 24 | pci_read_config32(dev, 0x40) | 5); |
| 25 | |
| 26 | /* Perform init. */ |
Vladimir Serbinenko | 2bebc80 | 2014-02-19 22:02:51 +0100 | [diff] [blame] | 27 | /* Configure TJmax. */ |
| 28 | msr = rdmsr(MSR_TEMPERATURE_TARGET); |
Kevin Paul Herbert | bde6d30 | 2014-12-24 18:43:20 -0800 | [diff] [blame] | 29 | write16((u16 *)0x40000012, ((msr.lo >> 16) & 0xff) << 6); |
Vladimir Serbinenko | 2bebc80 | 2014-02-19 22:02:51 +0100 | [diff] [blame] | 30 | /* Northbridge temperature slope and offset. */ |
Kevin Paul Herbert | bde6d30 | 2014-12-24 18:43:20 -0800 | [diff] [blame] | 31 | write16((u16 *)0x40000016, 0x7746); |
Vladimir Serbinenko | 2bebc80 | 2014-02-19 22:02:51 +0100 | [diff] [blame] | 32 | /* Enable thermal data reporting, processor, PCH and northbridge. */ |
Kevin Paul Herbert | bde6d30 | 2014-12-24 18:43:20 -0800 | [diff] [blame] | 33 | write16((u16 *)0x4000001a, |
| 34 | (read16((u16 *)0x4000001a) & ~0xf) | 0x10f0); |
Vladimir Serbinenko | 1cd937b | 2014-01-09 23:41:48 +0100 | [diff] [blame] | 35 | |
| 36 | /* Disable temporary BAR. */ |
| 37 | pci_write_config32(dev, 0x40, |
| 38 | pci_read_config32(dev, 0x40) & ~1); |
| 39 | pci_write_config32(dev, 0x40, 0); |
| 40 | } |