diff options
| author | Arthur Heymans <arthur@aheymans.xyz> | 2023-07-13 14:07:54 +0200 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2023-09-28 16:30:55 +0000 |
| commit | 48167b18a52915f03fff4e8f30aefc48d0e78a97 (patch) | |
| tree | b2d803e763448acfd09c863fad20d08bc241b24f /src | |
| parent | c5c35ce238e2ce032db7bc5e0addba1c2d46ef53 (diff) | |
soc/amd/genoa: Add timer & tsc support
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Signed-off-by: Varshit Pandya <pandyavarshit@gmail.com>
Change-Id: Ie1ae2ba4d4833570ca0621023bdeed67ccabe5cb
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76501
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/amd/genoa/Kconfig | 4 | ||||
| -rw-r--r-- | src/soc/amd/genoa/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/soc/amd/genoa/include/soc/msr.h | 41 | ||||
| -rw-r--r-- | src/soc/amd/genoa/timer.c | 7 |
4 files changed, 43 insertions, 10 deletions
diff --git a/src/soc/amd/genoa/Kconfig b/src/soc/amd/genoa/Kconfig index 7ef5707bba..b73b53cb86 100644 --- a/src/soc/amd/genoa/Kconfig +++ b/src/soc/amd/genoa/Kconfig @@ -8,13 +8,13 @@ config SOC_SPECIFIC_OPTIONS select ARCH_X86 select HAVE_EXP_X86_64_SUPPORT select NO_ECAM_MMCONF_SUPPORT - select NO_MONOTONIC_TIMER select RESET_VECTOR_IN_RAM select SOC_AMD_COMMON select SOC_AMD_COMMON_BLOCK_ACPIMMIO + select SOC_AMD_COMMON_BLOCK_CPUFREQ_FAM17H_19H select SOC_AMD_COMMON_BLOCK_NONCAR select SOC_AMD_COMMON_BLOCK_PCI_MMCONF - select UNKNOWN_TSC_RATE + select SOC_AMD_COMMON_BLOCK_TSC select X86_CUSTOM_BOOTMEDIA config USE_EXP_X86_64_SUPPORT diff --git a/src/soc/amd/genoa/Makefile.inc b/src/soc/amd/genoa/Makefile.inc index 0e08ac6031..56a98e6b48 100644 --- a/src/soc/amd/genoa/Makefile.inc +++ b/src/soc/amd/genoa/Makefile.inc @@ -9,7 +9,6 @@ bootblock-y += early_fch.c romstage-y += romstage.c ramstage-y += chip.c -ramstage-y += timer.c CPPFLAGS_common += -I$(src)/soc/amd/genoa/include diff --git a/src/soc/amd/genoa/include/soc/msr.h b/src/soc/amd/genoa/include/soc/msr.h new file mode 100644 index 0000000000..368c631d7d --- /dev/null +++ b/src/soc/amd/genoa/include/soc/msr.h @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef AMD_GENOA_MSR_H +#define AMD_GENOA_MSR_H + +/* MSRC001_00[6B:64] P-state [7:0] bit definitions */ +union pstate_msr { + struct { + uint64_t cpu_fid_0_7 : 8; /* [ 0.. 7] */ + uint64_t cpu_dfs_id : 6; /* [ 8..13] */ + uint64_t cpu_vid_0_7 : 8; /* [14..21] */ + uint64_t idd_value : 8; /* [22..29] */ + uint64_t idd_div : 2; /* [30..31] */ + uint64_t cpu_vid_8 : 1; /* [32..32] */ + uint64_t : 30; /* [33..62] */ + uint64_t pstate_en : 1; /* [63..63] */ + }; + uint64_t raw; +}; + + +/* Value defined in Serial VID Interface 3.0 spec (#56413, NDA only) */ +#define MSR_CPPC_CAPABILITY_1 0xc00102b0 +#define SHIFT_CPPC_CAPABILITY_1_HIGHEST_PERF 24 +#define SHIFT_CPPC_CAPABILITY_1_NOMINAL_PERF 16 +#define SHIFT_CPPC_CAPABILITY_1_LOW_NON_LIN_PERF 8 +#define SHIFT_CPPC_CAPABILITY_1_LOWEST_PERF 0 + +#define MSR_CPPC_ENABLE 0xc00102b1 +#define MSR_CPPC_REQUEST 0xc00102b3 +#define SHIFT_CPPC_REQUEST_ENERGY_PERF_PREF 24 +#define SHIFT_CPPC_REQUEST_DES_PERF 16 +#define SHIFT_CPPC_REQUEST_MIN_PERF 8 +#define SHIFT_CPPC_REQUEST_MAX_PERF 0 + +#define MSR_CPPC_STATUS 0xc00102b4 + +#define MSR_MAX_PERFORMANCE_FREQUENCY_CLOCK_COUNT 0xe7 +#define MSR_ACTUAL_PERFORMANCE_FREQUENCY_CLOCK_COUNT 0xe8 + +#endif /* AMD_GENOA_MSR_H */ diff --git a/src/soc/amd/genoa/timer.c b/src/soc/amd/genoa/timer.c deleted file mode 100644 index 9054ffd972..0000000000 --- a/src/soc/amd/genoa/timer.c +++ /dev/null @@ -1,7 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ - -#include <delay.h> - -void init_timer(void) -{ -} |