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Diffstat (limited to 'src/soc/mediatek/common/mcu.c')
-rw-r--r--src/soc/mediatek/common/mcu.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/src/soc/mediatek/common/mcu.c b/src/soc/mediatek/common/mcu.c
new file mode 100644
index 0000000000..d0a1107548
--- /dev/null
+++ b/src/soc/mediatek/common/mcu.c
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <arch/barrier.h>
+#include <cbfs.h>
+#include <console/console.h>
+#include <soc/mcu_common.h>
+#include <soc/symbols.h>
+#include <timer.h>
+
+int mtk_init_mcu(struct mtk_mcu *mcu)
+{
+ struct stopwatch sw;
+
+ if (!mcu)
+ return CB_ERR_ARG;
+
+ stopwatch_init(&sw);
+
+ mcu->run_size = cbfs_load(mcu->firmware_name, mcu->load_buffer, mcu->buffer_size);
+ if (mcu->run_size == 0) {
+ printk(BIOS_ERR, "%s: Failed to load %s\n", __func__, mcu->firmware_name);
+ return CB_ERR;
+ }
+
+ if (mcu->run_address) {
+ memcpy(mcu->run_address, mcu->load_buffer, mcu->run_size);
+ /* Memory barrier to ensure data is flushed before resetting MCU. */
+ mb();
+ }
+
+ if (mcu->reset)
+ mcu->reset(mcu);
+
+ printk(BIOS_DEBUG, "%s: Loaded (and reset) %s in %ld msecs (%zd bytes)\n",
+ __func__, mcu->firmware_name, stopwatch_duration_msecs(&sw), mcu->run_size);
+
+ return CB_SUCCESS;
+}