diff options
Diffstat (limited to 'src/soc/mediatek/common/mcu.c')
-rw-r--r-- | src/soc/mediatek/common/mcu.c | 38 |
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; +} |