soc/intel: Move max speed API to common

This patch moves API "smbios_cpu_get_max_speed_mhz()"
to common code from board specific. This API was made
generic in 'commit d34364bdea ("soc/intel/alderlake:
Utilize `CPU_BCLK_MHZ` over dedicated macro")'

BUG=NONE
TEST=Boot and verified that SMBIOS max speed value is
correct on brya and rex.
(brya) dmidecode -t : "Max Speed: 4400 MHz"
(rex) dmidecode -t : "Max Speed: 3400 MHz"

Signed-off-by: Dinesh Gehlot <digehlot@google.com>
Change-Id: I87040ab23319097287e191d7fc9579f16d716e62
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70879
Reviewed-by: Johnny Lin <Johnny_Lin@wiwynn.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/intel/alderlake/Makefile.inc

@@ -46,7 +46,6 @@ ramstage-y += tcss.c
 ramstage-y += vr_config.c
 ramstage-y += xhci.c
 ramstage-$(CONFIG_SOC_INTEL_CRASHLOG) += crashlog.c
-ramstage-y += smbios.c
 
 smm-y += elog.c
 smm-y += p2sb.c

src/soc/intel/alderlake/smbios.c

@@ -1,11 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-#include <intelblocks/cpulib.h>
-#include <intelblocks/msr.h>
-#include <smbios.h>
-
-/* Provide the max turbo frequency of the CPU */
-unsigned int smbios_cpu_get_max_speed_mhz(void)
-{
-	return cpu_get_max_turbo_ratio() * CONFIG_CPU_BCLK_MHZ;
-}

src/soc/intel/common/block/cpu/cpulib.c

@@ -517,3 +517,9 @@ void set_tme_core_activate(void)
 
 	wrmsr(MSR_CORE_MKTME_ACTIVATION, msr);
 }
+
+/* Provide the max turbo frequency of the CPU */
+unsigned int smbios_cpu_get_max_speed_mhz(void)
+{
+	return cpu_get_max_turbo_ratio() * CONFIG_CPU_BCLK_MHZ;
+}

src/soc/intel/xeon_sp/cpx/Makefile.inc

@@ -9,7 +9,7 @@ romstage-y += romstage.c ddr.c
 romstage-$(CONFIG_DISPLAY_UPD_DATA) += upd_display.c
 romstage-$(CONFIG_DISPLAY_HOBS) += hob_display.c
 
-ramstage-y += chip.c cpu.c soc_util.c ramstage.c soc_acpi.c
+ramstage-y += chip.c cpu.c soc_util.c soc_acpi.c
 ramstage-$(CONFIG_DISPLAY_HOBS) += hob_display.c
 ramstage-$(CONFIG_DISPLAY_UPD_DATA) += upd_display.c
 

src/soc/intel/xeon_sp/cpx/ramstage.c

@@ -1,8 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-#include <smbios.h>
-
-unsigned int smbios_cpu_get_max_speed_mhz(void)
-{
-	return 3900;
-}