Change in coreboot[master]: soc/mediatek: Initialize SSPM

[Hung-Te Lin (Code Review)]

Hung-Te Lin has submitted this change. ( https://review.coreboot.org/c/coreboot/+/55051 )

Change subject: soc/mediatek: Initialize SSPM
......................................................................

soc/mediatek: Initialize SSPM

Load SSPM firmware and boot up SSPM in ramstage.
This adds 23ms to the boot time.

TEST=Load SSPM blob ok, and we can see some logs of SSPM from AP.

Signed-off-by: Rex-BC Chen 
Change-Id: Ia227ea9f7d58129068cb36ec2de7d9feb677006b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55051
Tested-by: build bot (Jenkins) 
Reviewed-by: Yu-Ping Wu 
---
M src/soc/mediatek/mt8195/Kconfig
M src/soc/mediatek/mt8195/Makefile.inc
M src/soc/mediatek/mt8195/soc.c
3 files changed, 11 insertions(+), 1 deletion(-)

Approvals:
  build bot (Jenkins): Verified
  Yu-Ping Wu: Looks good to me, approved

diff --git a/src/soc/mediatek/mt8195/Kconfig b/src/soc/mediatek/mt8195/Kconfig
index f9bf846..02f7c5a 100644
--- a/src/soc/mediatek/mt8195/Kconfig
+++ b/src/soc/mediatek/mt8195/Kconfig
@@ -25,6 +25,12 @@
    help
      The file name of the MediaTek MCUPM firmware.

+config SSPM_FIRMWARE
+	string
+	default "sspm.bin"
+	help
+	  The file name of the MediaTek SSPM firmware.
+
 config FLASH_DUAL_READ
    bool
    default y
diff --git a/src/soc/mediatek/mt8195/Makefile.inc b/src/soc/mediatek/mt8195/Makefile.inc
index 1f89a58..ae325d5 100644
--- a/src/soc/mediatek/mt8195/Makefile.inc
+++ b/src/soc/mediatek/mt8195/Makefile.inc
@@ -54,6 +54,7 @@
 ramstage-y += ../common/mtcmos.c mtcmos.c
 ramstage-$(CONFIG_SPI_FLASH) += ../common/spi.c spi.c
 ramstage-y += soc.c
+ramstage-y += ../common/sspm.c
 ramstage-y += ../common/timer.c timer.c
 ramstage-y += ../common/uart.c
 ramstage-y += ../common/ufs.c
@@ -66,7 +67,8 @@
 MT8195_BLOB_DIR := 3rdparty/blobs/soc/mediatek/mt8195

mcu-firmware-files := \
-	$(CONFIG_MCUPM_FIRMWARE)
+	$(CONFIG_MCUPM_FIRMWARE) \
+	$(CONFIG_SSPM_FIRMWARE)

$(foreach fw, $(call strip_quotes,$(mcu-firmware-files)), \
      $(eval $(fw)-file := $(MT8195_BLOB_DIR)/$(fw)) \
diff --git a/src/soc/mediatek/mt8195/soc.c b/src/soc/mediatek/mt8195/soc.c
index 3ebf23d..f9f4f99 100644
--- a/src/soc/mediatek/mt8195/soc.c
+++ b/src/soc/mediatek/mt8195/soc.c
@@ -4,6 +4,7 @@
 #include <soc/emi.h>
 #include <soc/mcupm.h>
 #include <soc/mmu_operations.h>
+#include <soc/sspm.h>
 #include <soc/ufs.h>
 #include <symbols.h>

@@ -16,6 +17,7 @@
 {
    mtk_mmu_disable_l2c_sram();
    mcupm_init();
+	sspm_init();
    ufs_disable_refclk();
 }