diff options
Diffstat (limited to 'src/cpu/intel/model_2065x')
| -rw-r--r-- | src/cpu/intel/model_2065x/Kconfig | 5 | ||||
| -rw-r--r-- | src/cpu/intel/model_2065x/Makefile.inc | 4 | ||||
| -rw-r--r-- | src/cpu/intel/model_2065x/model_2065x.h | 18 | ||||
| -rw-r--r-- | src/cpu/intel/model_2065x/stage_cache.c | 30 |
4 files changed, 57 insertions, 0 deletions
diff --git a/src/cpu/intel/model_2065x/Kconfig b/src/cpu/intel/model_2065x/Kconfig index 707713c697..d8c016867c 100644 --- a/src/cpu/intel/model_2065x/Kconfig +++ b/src/cpu/intel/model_2065x/Kconfig @@ -21,6 +21,7 @@ config CPU_SPECIFIC_OPTIONS select CPU_INTEL_COMMON select NO_FIXED_XIP_ROM_SIZE select PARALLEL_MP + select CACHE_RELOCATED_RAMSTAGE_OUTSIDE_CBMEM config BOOTBLOCK_CPU_INIT string @@ -30,4 +31,8 @@ config SMM_TSEG_SIZE hex default 0x800000 +config SMM_RESERVED_SIZE + hex + default 0x100000 + endif diff --git a/src/cpu/intel/model_2065x/Makefile.inc b/src/cpu/intel/model_2065x/Makefile.inc index 043141ac18..39246c0708 100644 --- a/src/cpu/intel/model_2065x/Makefile.inc +++ b/src/cpu/intel/model_2065x/Makefile.inc @@ -19,6 +19,10 @@ ramstage-y += acpi.c smm-$(CONFIG_HAVE_SMI_HANDLER) += finalize.c +romstage-y += stage_cache.c +ramstage-y += stage_cache.c +postcar-y += stage_cache.c + cpu_microcode_bins += 3rdparty/blobs/cpu/intel/model_2065x/microcode.bin cpu_incs-y += $(src)/cpu/intel/car/non-evict/cache_as_ram.S diff --git a/src/cpu/intel/model_2065x/model_2065x.h b/src/cpu/intel/model_2065x/model_2065x.h index 904e794219..e7ba2a771b 100644 --- a/src/cpu/intel/model_2065x/model_2065x.h +++ b/src/cpu/intel/model_2065x/model_2065x.h @@ -80,4 +80,22 @@ void set_power_limits(u8 power_limit_1_time); int cpu_config_tdp_levels(void); #endif +/* + * Region of SMM space is reserved for multipurpose use. It falls below + * the IED region and above the SMM handler. + */ +#define RESERVED_SMM_SIZE CONFIG_SMM_RESERVED_SIZE +#define RESERVED_SMM_OFFSET (CONFIG_SMM_TSEG_SIZE - RESERVED_SMM_SIZE) + +/* Sanity check config options. */ +#if (CONFIG_SMM_TSEG_SIZE <= RESERVED_SMM_SIZE) +# error "CONFIG_SMM_TSEG_SIZE <= RESERVED_SMM_SIZE" +#endif +#if (CONFIG_SMM_TSEG_SIZE < 0x800000) +# error "CONFIG_SMM_TSEG_SIZE must at least be 8MiB" +#endif +#if ((CONFIG_SMM_TSEG_SIZE & (CONFIG_SMM_TSEG_SIZE - 1)) != 0) +# error "CONFIG_SMM_TSEG_SIZE is not a power of 2" +#endif + #endif diff --git a/src/cpu/intel/model_2065x/stage_cache.c b/src/cpu/intel/model_2065x/stage_cache.c new file mode 100644 index 0000000000..ab8ac979c1 --- /dev/null +++ b/src/cpu/intel/model_2065x/stage_cache.c @@ -0,0 +1,30 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 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. + */ + +#include <cbmem.h> +#include <stage_cache.h> +#include <cpu/intel/smm/gen1/smi.h> +#include "model_2065x.h" + +void stage_cache_external_region(void **base, size_t *size) +{ + /* + * The ramstage cache lives in the TSEG region at RESERVED_SMM_OFFSET. + * The top of RAM is defined to be the TSEG base address. + */ + *size = RESERVED_SMM_SIZE; + *base = (void *)((uintptr_t)northbridge_get_tseg_base() + + RESERVED_SMM_OFFSET); +} |