[coreboot-gerrit] Change in coreboot[master]: soc/mediatek/common: A common API for loading the blob file

[Yidi Lin (Code Review)]

Yidi Lin has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/46930 )

Change subject: soc/mediatek/common: A common API for loading the blob file
......................................................................

soc/mediatek/common: A common API for loading the blob file

load_blob_file is added for loading the blog file to the
specified memory address. This function also measures the
load time and the blob size.

Signed-off-by: Yidi Lin 
Change-Id: Ie94001bbda25fe015f43172e92a1006e059de223
---
A src/soc/mediatek/common/include/soc/mtlib_common.h
A src/soc/mediatek/common/mtlib.c
M src/soc/mediatek/mt8192/Makefile.inc
3 files changed, 38 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/30/46930/1

diff --git a/src/soc/mediatek/common/include/soc/mtlib_common.h b/src/soc/mediatek/common/include/soc/mtlib_common.h
new file mode 100644
index 0000000..3210468
--- /dev/null
+++ b/src/soc/mediatek/common/include/soc/mtlib_common.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef SOC_MEDIATEK_MTLIB_COMMON_H
+#define SOC_MEDIATEK_MTLIB_COMMON_H
+
+int load_blob_file(const char *name, unsigned long addr);
+
+#endif /* SOC_MEDIATEK_MTLIB_COMMON_H */
diff --git a/src/soc/mediatek/common/mtlib.c b/src/soc/mediatek/common/mtlib.c
new file mode 100644
index 0000000..cdb748b
--- /dev/null
+++ b/src/soc/mediatek/common/mtlib.c
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <cbfs.h>
+#include <console/console.h>
+#include <soc/mtlib_common.h>
+#include <timer.h>
+
+#define BUF_SIZE	(128 * KiB)
+static u8 blob_data[BUF_SIZE] __aligned(8);
+
+int load_blob_file(const char *name, unsigned long addr)
+{
+	struct stopwatch sw;
+	size_t blob_bytes;
+
+	stopwatch_init(&sw);
+
+	blob_bytes = cbfs_boot_load_file(name, blob_data, sizeof(blob_data), CBFS_TYPE_RAW);
+	if (blob_bytes == 0) {
+		printk(BIOS_ERR, "binary %s not found\n", name);
+		return CB_ERR;
+	}
+
+	memcpy((void *)addr, blob_data, blob_bytes);
+	printk(BIOS_DEBUG, "%s: Load %s in %ld msecs, size %ld bytes\n",
+	       __func__, name, stopwatch_duration_msecs(&sw), blob_bytes);
+
+	return CB_SUCCESS;
+}
diff --git a/src/soc/mediatek/mt8192/Makefile.inc b/src/soc/mediatek/mt8192/Makefile.inc
index 6890910..bebb0c4 100755
--- a/src/soc/mediatek/mt8192/Makefile.inc
+++ b/src/soc/mediatek/mt8192/Makefile.inc
@@ -52,6 +52,7 @@
 ramstage-y += devapc.c
 ramstage-y += ufs.c
 ramstage-y += mcupm.c
+ramstage-y += ../common/mtlib.c
 ramstage-y += ../common/timer.c
 ramstage-y += ../common/uart.c
 ramstage-y += ../common/usb.c usb.c