soc/amd/picasso: record timestamps in psp_verstage

Verstage in PSP used stub for timestamps since we didn't know about
clock. Now we figured out clock source so we can enable timestamp
functions.

BRANCH=zork
BUG=b:154142138, b:159220781
TEST=build without CONFIG_PSP_VERSTAGE_FILE, flash and boot

Change-Id: I431a243878e265b68783f54ee9424bb1d4fe03c1
Signed-off-by: Kangheui Won <khwon@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45467
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

src/lib/Makefile.inc

@@ -68,10 +68,7 @@ verstage-y += libgcc.c
 verstage-y += memcmp.c
 verstage-y += string.c
 
-# TODO: Remove this when PSP bootblock timestamps are implemented.
-ifeq ($(CONFIG_VBOOT_STARTS_BEFORE_BOOTBLOCK),)
 verstage-$(CONFIG_COLLECT_TIMESTAMPS) += timestamp.c
-endif
 verstage-y += boot_device.c
 verstage-$(CONFIG_CONSOLE_CBMEM) += cbmem_console.c
 

src/soc/amd/picasso/psp_verstage/Makefile.inc

@@ -15,7 +15,6 @@ verstage-y += psp.c
 verstage-y += reset.c
 verstage-y += svc.c
 verstage-y += timer.c
-verstage-y += timestamp.c
 verstage-y += vboot_crypto.c
 
 verstage-y += $(top)/src/vendorcode/amd/fsp/picasso/bl_uapp/bl_uapp_startup.S

src/soc/amd/picasso/psp_verstage/psp_verstage.c

@@ -16,6 +16,7 @@
 #include <arch/stages.h>
 #include <stdarg.h>
 #include <stdio.h>
+#include <timestamp.h>
 
 extern char _bss_start, _bss_end;
 static struct mem_region_device boot_dev =
@@ -217,6 +218,7 @@ void Main(void)
 	 * Do not use printk() before console_init()
 	 * Do not use post_code() before verstage_mainboard_init()
 	 */
+	timestamp_init(timestamp_get());
 	svc_write_postcode(POSTCODE_ENTERED_PSP_VERSTAGE);
 	svc_debug_print("Entering verstage on PSP\n");
 	memset(&_bss_start, '\0', &_bss_end - &_bss_start);

src/soc/amd/picasso/psp_verstage/timestamp.c

@@ -1,17 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-#include <timestamp.h>
-
-/* Stubs */
-void timestamp_add_now(enum timestamp_id id)
-{
-}
-
-void timestamp_add(enum timestamp_id id, uint64_t ts)
-{
-}
-
-uint64_t timestamp_get(void)
-{
-	return 0;
-}