payloads/libpayload: add MTK_TIMER_V2 config

The timer structure (in particular, the offset to memory addresses)
on recent MTK SoCs for example MT8195 has been changed.

BUG=b:195274787

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Change-Id: Ifd6ff65a825c4309c47f3b115b80a8ecd42fedac
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56845
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Rex-BC Chen <rex-bc.chen@mediatek.corp-partner.google.com>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/payloads/libpayload/drivers/timer/Kconfig b/payloads/libpayload/drivers/timer/Kconfig
index 175e4bb..406457a 100644
--- a/payloads/libpayload/drivers/timer/Kconfig
+++ b/payloads/libpayload/drivers/timer/Kconfig
@@ -45,6 +45,9 @@
 config TIMER_MTK
 	bool "Timer for MediaTek"
 
+config TIMER_MTK_V2
+	bool "Timer for MediaTek V2"
+
 endchoice
 
 config TIMER_GENERIC_HZ
@@ -53,6 +56,7 @@
 	default 6250000 if TIMER_IPQ806X
 	default 24000000 if TIMER_MCT
 	default 13000000 if TIMER_MTK
+	default 13000000 if TIMER_MTK_V2
 	default 24000000 if TIMER_RK3288
 	default 24000000 if TIMER_RK3399
 	default 1000000 if TIMER_TEGRA_1US
@@ -67,6 +71,7 @@
 	default 0x0200A028 if TIMER_IPQ806X
 	default 0x101C0100 if TIMER_MCT
 	default 0x10008068 if TIMER_MTK
+	default 0x100080A8 if TIMER_MTK_V2
 	default 0xff810028 if TIMER_RK3288
 	default 0xff850008 if TIMER_RK3399
 	default 0x60005010 if TIMER_TEGRA_1US
@@ -79,6 +84,7 @@
 	default 0x004A2004 if TIMER_IPQ40XX
 	default 0x101C0104 if TIMER_MCT
 	default 0x10008078 if TIMER_MTK
+	default 0x100080B0 if TIMER_MTK_V2
 	default 0xff81002C if TIMER_RK3288
 	default 0xff85000C if TIMER_RK3399
 	default 0x0