Andrey Petrov (andrey.petrov@intel.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/14471
-gerrit
commit c0025f10b795f49edc20272cc020ae38f00c33d5 Author: Lance Zhao lijian.zhao@intel.com Date: Tue Apr 19 18:04:21 2016 -0700
soc/intel/apollolake: Add handling of GNVS ACPI entry fo CHROMES builds
Add chromeos required GNVS feature. The GNVS table stays in both CBMEM and ACPI DSDT tables.
Change-Id: I4db0eb18d2de62917a94704318a7896c04e4777f Signed-off-by: Andrey Petrov andrey.petrov@intel.com --- src/soc/intel/apollolake/acpi.c | 29 ++++++++++++++++++++++ src/soc/intel/apollolake/include/soc/acpi.h | 2 ++ src/soc/intel/apollolake/include/soc/nvs.h | 37 +++++++++++++++++++++++++++++ src/soc/intel/apollolake/lpc.c | 8 +++++++ 4 files changed, 76 insertions(+)
diff --git a/src/soc/intel/apollolake/acpi.c b/src/soc/intel/apollolake/acpi.c index 7d28313..a300417 100644 --- a/src/soc/intel/apollolake/acpi.c +++ b/src/soc/intel/apollolake/acpi.c @@ -16,12 +16,15 @@ */
#include <arch/acpi.h> +#include <arch/acpigen.h> #include <arch/ioapic.h> #include <arch/smp/mpspec.h> +#include <cbmem.h> #include <cpu/x86/smm.h> #include <soc/acpi.h> #include <soc/iomap.h> #include <soc/pm.h> +#include <soc/nvs.h>
unsigned long acpi_fill_mcfg(unsigned long current) { @@ -125,3 +128,29 @@ unsigned long southbridge_write_acpi_tables(device_t device, { return acpi_write_hpet(device, current, rsdp); } + +static void acpi_create_gnvs(struct global_nvs_t *gnvs) +{ + if(IS_ENABLED(CONFIG_CHROMEOS)) { + /* Initialize Verified Boot data */ + chromeos_init_vboot(&(gnvs->chromeos)); + gnvs->chromeos.vbt2 = ACTIVE_ECFW_RO; + } +} + +void southbridge_inject_dsdt(device_t device) +{ + struct global_nvs_t *gnvs; + + gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS); + + if (gnvs) { + acpi_create_gnvs(gnvs); + acpi_save_gnvs((unsigned long)gnvs); + + /* Add it to DSDT. */ + acpigen_write_scope("\"); + acpigen_write_name_dword("NVSA", (uint32_t)gnvs); + acpigen_pop_len(); + } +} diff --git a/src/soc/intel/apollolake/include/soc/acpi.h b/src/soc/intel/apollolake/include/soc/acpi.h index 2d20805..3605cc3 100644 --- a/src/soc/intel/apollolake/include/soc/acpi.h +++ b/src/soc/intel/apollolake/include/soc/acpi.h @@ -25,4 +25,6 @@ void soc_fill_common_fadt(acpi_fadt_t * fadt); unsigned long southbridge_write_acpi_tables(device_t device, unsigned long current, struct acpi_rsdp *rsdp);
+void southbridge_inject_dsdt(device_t device); + #endif /* _SOC_APOLLOLAKE_ACPI_H_ */ diff --git a/src/soc/intel/apollolake/include/soc/nvs.h b/src/soc/intel/apollolake/include/soc/nvs.h new file mode 100644 index 0000000..8b3a3af --- /dev/null +++ b/src/soc/intel/apollolake/include/soc/nvs.h @@ -0,0 +1,37 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2015 Intel Corp. + * (Written by Lance Zhao lijian.zhao@intel.com for Intel Corp.) + * + * 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; either version 2 of the License, or + * (at your option) any later version. + * + * 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. + */ + +/* + * NOTE: The layout of the global_nvs_t structure below must match the layout + * in soc/intel/apollolake/acpi/globalnvs.asl !!! + * + */ + +#ifndef _SOC_APOLLOLAKE_NVS_H_ +#define _SOC_APOLLOLAKE_NVS_H_ + +#include <vendorcode/google/chromeos/gnvs.h> + +struct global_nvs_t { + /* Miscellaneous */ + uint8_t unused[256]; + + /* ChromeOS specific (0x100 - 0xfff) */ + chromeos_acpi_t chromeos; +} __attribute__((packed)); + +#endif /* _SOC_APOLLOLAKE_NVS_H_ */ diff --git a/src/soc/intel/apollolake/lpc.c b/src/soc/intel/apollolake/lpc.c index 6e366e0..628f190 100644 --- a/src/soc/intel/apollolake/lpc.c +++ b/src/soc/intel/apollolake/lpc.c @@ -15,10 +15,12 @@ * GNU General Public License for more details. */
+#include <cbmem.h> #include <device/device.h> #include <device/pci.h> #include <device/pci_ids.h> #include <soc/acpi.h> +#include <soc/nvs.h> #include <soc/pci_ids.h> #include <reg_script.h> #include <vendorcode/google/chromeos/chromeos.h> @@ -74,11 +76,16 @@ static void soc_lpc_add_io_resources(device_t dev)
static void soc_lpc_read_resources(device_t dev) { + struct global_nvs_t *gnvs; + /* Get the PCI resources of this device. */ pci_dev_read_resources(dev);
/* Add IO resources to LPC. */ soc_lpc_add_io_resources(dev); + + /* Allocate ACPI NVS in CBMEM */ + gnvs = cbmem_add(CBMEM_ID_ACPI_GNVS, sizeof(*gnvs)); }
static struct device_operations device_ops = { @@ -86,6 +93,7 @@ static struct device_operations device_ops = { .set_resources = &pci_dev_set_resources, .enable_resources = &pci_dev_enable_resources, .write_acpi_tables = southbridge_write_acpi_tables, + .acpi_inject_dsdt_generator = southbridge_inject_dsdt, .init = &lpc_init };