[M] Change in coreboot[main]: soc/amd/genoa: Add timer & tsc support

[Felix Held (Code Review)]

Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/76501?usp=email )

(

9 is the latest approved patch-set.
No files were changed between the latest approved patch-set and the submitted one.
 )Change subject: soc/amd/genoa: Add timer & tsc support
......................................................................

soc/amd/genoa: Add timer & tsc support

Signed-off-by: Arthur Heymans 
Signed-off-by: Varshit Pandya 
Change-Id: Ie1ae2ba4d4833570ca0621023bdeed67ccabe5cb
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76501
Reviewed-by: Matt DeVillier 
Reviewed-by: Martin Roth 
Tested-by: build bot (Jenkins) 
---
M src/soc/amd/genoa/Kconfig
M src/soc/amd/genoa/Makefile.inc
A src/soc/amd/genoa/include/soc/msr.h
D src/soc/amd/genoa/timer.c
4 files changed, 43 insertions(+), 10 deletions(-)

Approvals:
  Matt DeVillier: Looks good to me, but someone else must approve
  build bot (Jenkins): Verified
  Martin Roth: Looks good to me, approved

diff --git a/src/soc/amd/genoa/Kconfig b/src/soc/amd/genoa/Kconfig
index 7ef5707..b73b53c 100644
--- a/src/soc/amd/genoa/Kconfig
+++ b/src/soc/amd/genoa/Kconfig
@@ -8,13 +8,13 @@
    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 0e08ac6..56a98e6 100644
--- a/src/soc/amd/genoa/Makefile.inc
+++ b/src/soc/amd/genoa/Makefile.inc
@@ -9,7 +9,6 @@
 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 0000000..368c631
--- /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 9054ffd..0000000
--- 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)
-{
-}