From 95de2317c6c6379e43d3b3c27d34eb66198dbe0a Mon Sep 17 00:00:00 2001 From: Angel Pons Date: Mon, 17 Feb 2020 13:08:53 +0100 Subject: nb/intel/nehalem: Rename to ironlake The code is for Arrandale CPUs, whose System Agent is Ironlake. This change simply replaces `nehalem` with `ironlake` and `NEHALEM` with `IRONLAKE`. The remaining `Nehalem` cases are handled later, as changing some of them would impact the resulting binary. Tested with BUILD_TIMELESS=1 without adding the configuration options into the binary, and packardbell/ms2290 does not change. Change-Id: I8eb96eeb5e69f49150d47793b33e87b650c64acc Signed-off-by: Angel Pons Reviewed-on: https://review.coreboot.org/c/coreboot/+/38941 Reviewed-by: Felix Held Reviewed-by: Martin Roth Tested-by: build bot (Jenkins) --- src/northbridge/intel/ironlake/early_init.c | 158 ++++++++++++++++++++++++++++ 1 file changed, 158 insertions(+) create mode 100644 src/northbridge/intel/ironlake/early_init.c (limited to 'src/northbridge/intel/ironlake/early_init.c') diff --git a/src/northbridge/intel/ironlake/early_init.c b/src/northbridge/intel/ironlake/early_init.c new file mode 100644 index 0000000000..fe4ad7feff --- /dev/null +++ b/src/northbridge/intel/ironlake/early_init.c @@ -0,0 +1,158 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2007-2010 coresystems GmbH + * Copyright (C) 2011 Google Inc + * Copyright (C) 2013 Vladimir Serbinenko + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "ironlake.h" + +static void ironlake_setup_bars(void) +{ + /* Setting up Southbridge. In the northbridge code. */ + printk(BIOS_DEBUG, "Setting up static southbridge registers..."); + pci_write_config32(PCI_DEV(0, 0x1f, 0), RCBA, (uintptr_t)DEFAULT_RCBA | 1); + + pci_write_config32(PCI_DEV(0, 0x1f, 0), PMBASE, DEFAULT_PMBASE | 1); + /* Enable ACPI BAR */ + pci_write_config8(PCI_DEV(0, 0x1f, 0), 0x44 /* ACPI_CNTL */, 0x80); + + printk(BIOS_DEBUG, " done.\n"); + + printk(BIOS_DEBUG, "Disabling Watchdog reboot..."); + /* No reset */ + RCBA32(GCS) = RCBA32(GCS) | (1 << 5); + /* halt timer */ + outw((1 << 11), DEFAULT_PMBASE | 0x60 | 0x08); + /* halt timer */ + outw(inw(DEFAULT_PMBASE | 0x60 | 0x06) | 2, + DEFAULT_PMBASE | 0x60 | 0x06); + printk(BIOS_DEBUG, " done.\n"); + + printk(BIOS_DEBUG, "Setting up static northbridge registers..."); + /* Set up all hardcoded northbridge BARs */ + pci_write_config32(PCI_DEV(0, 0x00, 0), EPBAR, DEFAULT_EPBAR | 1); + pci_write_config32(PCI_DEV(0, 0x00, 0), EPBAR + 4, + (0LL + DEFAULT_EPBAR) >> 32); + pci_write_config32(PCI_DEV(0, 0x00, 0), MCHBAR, (uintptr_t)DEFAULT_MCHBAR | 1); + pci_write_config32(PCI_DEV(0, 0x00, 0), MCHBAR + 4, + (0LL + (uintptr_t)DEFAULT_MCHBAR) >> 32); + + pci_write_config32(PCI_DEV(0, 0x00, 0), DMIBAR, (uintptr_t)DEFAULT_DMIBAR | 1); + pci_write_config32(PCI_DEV(0, 0x00, 0), DMIBAR + 4, + (0LL + (uintptr_t)DEFAULT_DMIBAR) >> 32); + + /* Set C0000-FFFFF to access RAM on both reads and writes */ + pci_write_config8(PCI_DEV(0xff, 0x00, 1), QPD0F1_PAM(0), 0x30); + pci_write_config8(PCI_DEV(0xff, 0x00, 1), QPD0F1_PAM(1), 0x33); + pci_write_config8(PCI_DEV(0xff, 0x00, 1), QPD0F1_PAM(2), 0x33); + pci_write_config8(PCI_DEV(0xff, 0x00, 1), QPD0F1_PAM(3), 0x33); + pci_write_config8(PCI_DEV(0xff, 0x00, 1), QPD0F1_PAM(4), 0x33); + pci_write_config8(PCI_DEV(0xff, 0x00, 1), QPD0F1_PAM(5), 0x33); + pci_write_config8(PCI_DEV(0xff, 0x00, 1), QPD0F1_PAM(6), 0x33); + + printk(BIOS_DEBUG, " done.\n"); +} + +static void early_cpu_init (void) +{ + msr_t m; + + /* bit 0 = disable multicore, + bit 1 = disable quadcore, + bit 8 = disable hyperthreading. */ + pci_write_config32(PCI_DEV(0xff, 0x00, 0), 0x80, + (pci_read_config32(PCI_DEV(0xff, 0x0, 0x0), 0x80) & 0xfffffefc) | 0x10000); + + u8 reg8; + struct cpuid_result result; + result = cpuid_ext(0x6, 0x8b); + if (!(result.eax & 0x2)) { + m = rdmsr(MSR_FSB_CLOCK_VCC); + reg8 = ((m.lo & 0xff00) >> 8) + 1; + m = rdmsr(IA32_PERF_CTL); + m.lo = (m.lo & ~0xff) | reg8; + wrmsr(IA32_PERF_CTL, m); + + m = rdmsr(IA32_MISC_ENABLE); + m.hi &= ~0x00000040; + m.lo |= 0x10000; + + wrmsr(IA32_MISC_ENABLE, m); + } + + m = rdmsr(MSR_FSB_CLOCK_VCC); + reg8 = ((m.lo & 0xff00) >> 8) + 1; + + m = rdmsr(IA32_PERF_CTL); + m.lo = (m.lo & ~0xff) | reg8; + wrmsr(IA32_PERF_CTL, m); + + m = rdmsr(IA32_MISC_ENABLE); + m.lo |= 0x10000; + wrmsr(IA32_MISC_ENABLE, m); +} + +void ironlake_early_initialization(int chipset_type) +{ + u32 capid0_a; + u8 reg8; + int s3_resume; + + /* Device ID Override Enable should be done very early */ + capid0_a = pci_read_config32(PCI_DEV(0, 0, 0), 0xe4); + if (capid0_a & (1 << 10)) { + reg8 = pci_read_config8(PCI_DEV(0, 0, 0), 0xf3); + reg8 &= ~7; /* Clear 2:0 */ + + if (chipset_type == IRONLAKE_MOBILE) + reg8 |= 1; /* Set bit 0 */ + + pci_write_config8(PCI_DEV(0, 0, 0), 0xf3, reg8); + } + + /* Setup all BARs required for early PCIe and raminit */ + ironlake_setup_bars(); + + s3_resume = (inw(DEFAULT_PMBASE + PM1_STS) & WAK_STS) && + (((inl(DEFAULT_PMBASE + PM1_CNT) >> 10) & 7) == SLP_TYP_S3); + + elog_boot_notify(s3_resume); + + /* Device Enable */ + pci_write_config32(PCI_DEV(0, 0, 0), D0F0_DEVEN, + DEVEN_IGD | DEVEN_PEG10 | DEVEN_HOST); + + early_cpu_init(); + + pci_write_config32(PCI_DEV(0, 0x16, 0), 0x10, (uintptr_t)DEFAULT_HECIBAR); + pci_write_config32(PCI_DEV(0, 0x16, 0), PCI_COMMAND, + PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY); + + /* Magic for S3 resume. Must be done early. */ + if (s3_resume) { + MCHBAR32 (0x1e8) = (MCHBAR32(0x1e8) & ~1) | 6; + MCHBAR32 (0x1e8) = (MCHBAR32(0x1e8) & ~3) | 4; + } +} -- cgit v1.2.3