From 61680274c1ded5ea095b15b689f83d5d670d2aae Mon Sep 17 00:00:00 2001 From: Duncan Laurie Date: Mon, 5 May 2014 12:42:35 -0500 Subject: broadwell: ACPI, romstage, and other updates broadwell: Add romstage usbdebug support Reviewed-on: https://chromium-review.googlesource.com/199412 (cherry picked from commit 1050e7d3be6ec1e4fe5aa2df408f4bb6d33a42b5) broadwell: Add romstage code to configure PCH UART for console Reviewed-on: https://chromium-review.googlesource.com/199807 (cherry picked from commit ecebda4eb5d6fe58473d25c2898ba1a2eac0f39a) broadwell: Expand the PCI device convenience macros Reviewed-on: https://chromium-review.googlesource.com/199891 (cherry picked from commit f8c54c70f136cd2cb8f977bc25661974d7e529ad) broadwell: Add ramstage driver for ADSP Reviewed-on: https://chromium-review.googlesource.com/199892 (cherry picked from commit e8e986b0ba52bbfc9923d71009fbd31e749ca43f) broadwell: Update ACPI devices Reviewed-on: https://chromium-review.googlesource.com/201080 (cherry picked from commit 2446b35578eb36e0009415bec340059135751549) broadwell: Reserve DPR region Reviewed-on: https://chromium-review.googlesource.com/201081 (cherry picked from commit 8ecd9d2096db2bded6f27ef6ee9a9b39ce2dfec6) broadwell: Remove old pei_data and add cpu function for romstage Reviewed-on: https://chromium-review.googlesource.com/201690 (cherry picked from commit d206c9cdd69519d502a90bb0595f0e3a7cb50274) broadwell: Fixes for graphics without executing VBIOS Reviewed-on: https://chromium-review.googlesource.com/202356 (cherry picked from commit 0c031df1ce92c875e95ddfd3f026f649c342c7fa) broadwell: Fix compilation failure when loglevel is lowered Reviewed-on: https://chromium-review.googlesource.com/202357 (cherry picked from commit 708ce78b2bfae5664b1238e17b086c88cac55bdc) broadwell: Disable GPIO controller interrupt Reviewed-on: https://chromium-review.googlesource.com/203645 (cherry picked from commit 2d17e98eded5958258ba5c0abf600284d8d03af9) broadwell: Add support for E0 stepping Reviewed-on: https://chromium-review.googlesource.com/205160 (cherry picked from commit 802e9d371418cc7a7fc7af131d7e5dda0ae5b273) broadwell: misc updates for CPU driver Reviewed-on: https://chromium-review.googlesource.com/205161 (cherry picked from commit ea1d403817ee193648f2c119fd45894e32e57e97) broadwell: Read power state earlier and store in romstage params Reviewed-on: https://chromium-review.googlesource.com/208151 (cherry picked from commit b2198d71084ad3c1360a0bfedc46c8dd3825bd0e) broadwell: Add parameters to pei_data structure Reviewed-on: https://chromium-review.googlesource.com/208153 (cherry picked from commit 423fbf67e497a907fbc8e12caf2929d4951858af) broadwell: Move platform report output after power state is read Reviewed-on: https://chromium-review.googlesource.com/208213 (cherry picked from commit acedf4146bf9377133433046dae1fa9c8bc69d78) Squashed 15 commits for broadwell support. Change-Id: I87e320d3d5376b84dd9c146b0b833e5ce53244aa Signed-off-by: Isaac Christensen Reviewed-on: http://review.coreboot.org/6982 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones --- src/soc/intel/broadwell/adsp.c | 152 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 152 insertions(+) create mode 100644 src/soc/intel/broadwell/adsp.c (limited to 'src/soc/intel/broadwell/adsp.c') diff --git a/src/soc/intel/broadwell/adsp.c b/src/soc/intel/broadwell/adsp.c new file mode 100644 index 0000000000..2a6dc1744a --- /dev/null +++ b/src/soc/intel/broadwell/adsp.c @@ -0,0 +1,152 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2014 Google Inc. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static void adsp_init(struct device *dev) +{ + config_t *config = dev->chip_info; + struct resource *bar0, *bar1; + u32 tmp32; + + /* Ensure memory and bus master are enabled */ + tmp32 = pci_read_config32(dev, PCI_COMMAND); + tmp32 |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; + pci_write_config32(dev, PCI_COMMAND, tmp32); + + /* Find BAR0 and BAR1 */ + bar0 = find_resource(dev, PCI_BASE_ADDRESS_0); + if (!bar0) + return; + bar1 = find_resource(dev, PCI_BASE_ADDRESS_1); + if (!bar1) + return; + + /* + * Set LTR value in DSP shim LTR control register to 3ms + * SNOOP_REQ[13]=1b SNOOP_SCALE[12:10]=100b (1ms) SNOOP_VAL[9:0]=3h + */ + tmp32 = pch_is_wpt() ? ADSP_SHIM_BASE_WPT : ADSP_SHIM_BASE_LPT; + write32(bar0->base + tmp32 + ADSP_SHIM_LTRC, ADSP_SHIM_LTRC_VALUE); + + /* Program VDRTCTL2 D19:F0:A8[31:0] = 0x00000fff */ + pci_write_config32(dev, ADSP_PCI_VDRTCTL2, ADSP_VDRTCTL2_VALUE); + + /* Program ADSP IOBP VDLDAT1 to 0x040100 */ + pch_iobp_write(ADSP_IOBP_VDLDAT1, ADSP_VDLDAT1_VALUE); + + /* Set D3 Power Gating Enable in D19:F0:A0 based on PCH type */ + tmp32 = pci_read_config32(dev, ADSP_PCI_VDRTCTL0); + if (pch_is_wpt()) { + tmp32 &= ~ADSP_VDRTCTL0_D3PGD_WPT; + tmp32 &= ~ADSP_VDRTCTL0_D3SRAMPGD_WPT; + } else { + tmp32 &= ~ADSP_VDRTCTL0_D3PGD_LPT; + tmp32 &= ~ADSP_VDRTCTL0_D3SRAMPGD_LPT; + } + pci_write_config32(dev, ADSP_PCI_VDRTCTL0, tmp32); + + /* Set PSF Snoop to SA, RCBA+0x3350[10]=1b */ + RCBA32_OR(0x3350, (1 << 10)); + + /* Set DSP IOBP PMCTL 0x1e0=0x3f */ + pch_iobp_write(ADSP_IOBP_PMCTL, ADSP_PMCTL_VALUE); + + if (config->sio_acpi_mode) { + /* Configure for ACPI mode */ + global_nvs_t *gnvs; + + printk(BIOS_INFO, "ADSP: Enable ACPI Mode IRQ3\n"); + + /* Find ACPI NVS to update BARs */ + gnvs = (global_nvs_t *)cbmem_find(CBMEM_ID_ACPI_GNVS); + if (!gnvs) { + printk(BIOS_ERR, "Unable to locate Global NVS\n"); + return; + } + + /* Save BAR0 and BAR1 to ACPI NVS */ + gnvs->dev.bar0[SIO_NVS_ADSP] = (u32)bar0->base; + gnvs->dev.bar1[SIO_NVS_ADSP] = (u32)bar1->base; + gnvs->dev.enable[SIO_NVS_ADSP] = 1; + + /* Set PCI Config Disable Bit */ + pch_iobp_update(ADSP_IOBP_PCICFGCTL, ~0, ADSP_PCICFGCTL_PCICD); + + /* Set interrupt de-assert/assert opcode override to IRQ3 */ + pch_iobp_write(ADSP_IOBP_VDLDAT2, ADSP_IOBP_ACPI_IRQ3); + + /* Enable IRQ3 in RCBA */ + RCBA32_OR(ACPIIRQEN, ADSP_ACPI_IRQEN); + + /* Set ACPI Interrupt Enable Bit */ + pch_iobp_update(ADSP_IOBP_PCICFGCTL, ~ADSP_PCICFGCTL_SPCBAD, + ADSP_PCICFGCTL_ACPIIE); + + /* Put ADSP in D3hot */ + tmp32 = read32(bar1->base + PCH_PCS); + tmp32 |= PCH_PCS_PS_D3HOT; + write32(bar1->base + PCH_PCS, tmp32); + } else { + printk(BIOS_INFO, "ADSP: Enable PCI Mode IRQ23\n"); + + /* Configure for PCI mode */ + pci_write_config32(dev, PCI_INTERRUPT_LINE, ADSP_PCI_IRQ); + + /* Clear ACPI Interrupt Enable Bit */ + pch_iobp_update(ADSP_IOBP_PCICFGCTL, + ~(ADSP_PCICFGCTL_SPCBAD | ADSP_PCICFGCTL_ACPIIE), 0); + } +} + +static struct device_operations adsp_ops = { + .read_resources = &pci_dev_read_resources, + .set_resources = &pci_dev_set_resources, + .enable_resources = &pci_dev_enable_resources, + .init = &adsp_init, + .ops_pci = &broadwell_pci_ops, +}; + +static const unsigned short pci_device_ids[] = { + 0x9c36, /* LynxPoint */ + 0x9cb6, /* WildcatPoint */ + 0 +}; + +static const struct pci_driver pch_adsp __pci_driver = { + .ops = &adsp_ops, + .vendor = PCI_VENDOR_ID_INTEL, + .devices = pci_device_ids, +}; + -- cgit v1.2.3