soc/mediatek/mt8196: Notify MCUPM to support MTE

Before CPU resume, it is necessary to reinitialize the MTE-related
settings of booker in MCUPM to prevent the loss of booker
configurations after resume.

BUG=b:467186613
TEST=Build pass, Verify S/R OK on Navi and Sapphire.

Change-Id: Ieaf4c2ea0f8a5c372a5dbf4d0f6c44fbd978e6a6
Signed-off-by: Jarried Lin <jarried.lin@mediatek.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/90546
Reviewed-by: Yidi Lin <yidilin@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>

src/soc/mediatek/mt8196/booker.c

@@ -4,6 +4,7 @@
 #include <device/mmio.h>
 #include <soc/addressmap.h>
 #include <soc/booker.h>
+#include <soc/mcupm_plat.h>
 
 #define REG_READ_ONLY_HASH_VALUE	(MCUCFG_BASE + 0x059C)
 #define REG_MCUSYS_RESERVED_REG2	(MCUCFG_BASE + 0xFFE8)
@@ -61,6 +62,9 @@ void booker_mte_init(uint64_t mte_tag_addr)
 {
 	int i;
 
+	/* Notify MCUPM to configure MTE on resume path. */
+	setbits32p(MTE_ENABLE_REG, 0xF);
+
 	printk(BIOS_DEBUG, "%s: MTE tag addr %#llx\n", __func__, mte_tag_addr);
 
 	/* Setting MTU TAG */

src/soc/mediatek/mt8196/include/soc/mcupm_plat.h

@@ -92,5 +92,6 @@
 
 #define ABNORMALBOOT_REG			GPR_BASE_ADDR_MCU(1)
 #define WARMBOOT_REG				GPR_BASE_ADDR_MCU(23)
+#define MTE_ENABLE_REG				GPR_BASE_ADDR_MCU(25)
 
 #endif /* __SOC_MEDIATEK_MT8196_INCLUDE_SOC_MCUPM_PLAT_H__ */