soc/mediatek/mt8192: Load MCUPM firmware and boot up MCUPM
MCUPM is the MediaTek proprietary firmware for MCU power management.
TEST=1. emerge-asurada coreboot chromeos-bootimage;
2. See following log during booting.
load_blob_file: Load mcupm.bin in 35 msecs, size 115668 bytes
3. Test suspend/resume by:
a. suspend (on DUT): powerd_dbus_suspend
b. resume (on host): dut-control power_state:on
Change-Id: I50bea1942507b4a40df9730b4e1bf98980d74277
Signed-off-by: Yidi Lin <yidi.lin@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46392
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/mediatek/mt8192/Kconfig b/src/soc/mediatek/mt8192/Kconfig
index dbb35f6..36ad2e3 100644
--- a/src/soc/mediatek/mt8192/Kconfig
+++ b/src/soc/mediatek/mt8192/Kconfig
@@ -45,6 +45,12 @@
This option enables memory basic compare test to verify the DRAM read
or write is as expected.
+config MCUPM_FIRMWARE
+ string
+ default "mcupm.bin"
+ help
+ The file name of the MediaTek MCUPM firmware.
+
config SPM_FIRMWARE
string
default "spm_firmware.bin"
diff --git a/src/soc/mediatek/mt8192/Makefile.inc b/src/soc/mediatek/mt8192/Makefile.inc
index 3caa1ef..2fc8f39 100644
--- a/src/soc/mediatek/mt8192/Makefile.inc
+++ b/src/soc/mediatek/mt8192/Makefile.inc
@@ -40,6 +40,7 @@
ramstage-y += emi.c
ramstage-$(CONFIG_SPI_FLASH) += ../common/spi.c spi.c
ramstage-y += ../common/mcu.c
+ramstage-y += mcupm.c
ramstage-y += ../common/mmu_operations.c mmu_operations.c
ramstage-y += ../common/mtcmos.c mtcmos.c
ramstage-y += soc.c
@@ -51,6 +52,7 @@
MT8192_BLOB_DIR := 3rdparty/blobs/soc/mediatek/mt8192
mcu-firmware-files := \
+ $(CONFIG_MCUPM_FIRMWARE) \
$(CONFIG_SPM_FIRMWARE)
$(foreach fw, $(call strip_quotes,$(mcu-firmware-files)), \
diff --git a/src/soc/mediatek/mt8192/include/soc/addressmap.h b/src/soc/mediatek/mt8192/include/soc/addressmap.h
index 12094ff..c68403b 100644
--- a/src/soc/mediatek/mt8192/include/soc/addressmap.h
+++ b/src/soc/mediatek/mt8192/include/soc/addressmap.h
@@ -5,6 +5,8 @@
enum {
MCUSYS_BASE = 0x0C530000,
+ MCUPM_SRAM_BASE = 0x0C540000,
+ MCUPM_CFG_BASE = 0x0C560000,
IO_PHYS = 0x10000000,
};
diff --git a/src/soc/mediatek/mt8192/include/soc/mcupm.h b/src/soc/mediatek/mt8192/include/soc/mcupm.h
new file mode 100644
index 0000000..dcb8c4a
--- /dev/null
+++ b/src/soc/mediatek/mt8192/include/soc/mcupm.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef SOC_MEDIATEK_MT8192_MCUPM_H
+#define SOC_MEDIATEK_MT8192_MCUPM_H
+
+#include <soc/addressmap.h>
+#include <types.h>
+
+struct mt8192_mcupm_regs {
+ u32 sw_rstn;
+};
+static struct mt8192_mcupm_regs *const mt8192_mcupm = (void *)MCUPM_CFG_BASE;
+void mcupm_init(void);
+#endif /* SOC_MEDIATEK_MT8192_MCUPM_H */
diff --git a/src/soc/mediatek/mt8192/mcupm.c b/src/soc/mediatek/mt8192/mcupm.c
new file mode 100644
index 0000000..70981a0
--- /dev/null
+++ b/src/soc/mediatek/mt8192/mcupm.c
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <console/console.h>
+#include <device/mmio.h>
+#include <soc/mcu_common.h>
+#include <soc/mcupm.h>
+#include <soc/symbols.h>
+
+#define ABNORMALBOOT_REG 0x0C55FAA0
+
+static void reset_mcupm(struct mtk_mcu *mcu)
+{
+ /* Clear abnormal boot register */
+ write32((void *)ABNORMALBOOT_REG, 0x0);
+ write32(&mt8192_mcupm->sw_rstn, 0x1);
+}
+
+static struct mtk_mcu mcupm = {
+ .firmware_name = CONFIG_MCUPM_FIRMWARE,
+ .run_address = (void *)MCUPM_SRAM_BASE,
+ .reset = reset_mcupm,
+};
+
+void mcupm_init(void)
+{
+ mcupm.load_buffer = _dram_dma;
+ mcupm.buffer_size = REGION_SIZE(dram_dma);
+
+ write32(&mt8192_mcupm->sw_rstn, 0x0);
+
+ if (mtk_init_mcu(&mcupm))
+ die("%s() failed\n", __func__);
+}
diff --git a/src/soc/mediatek/mt8192/soc.c b/src/soc/mediatek/mt8192/soc.c
index 6978406..00a57d2f 100644
--- a/src/soc/mediatek/mt8192/soc.c
+++ b/src/soc/mediatek/mt8192/soc.c
@@ -2,6 +2,7 @@
#include <device/device.h>
#include <soc/emi.h>
+#include <soc/mcupm.h>
#include <soc/mmu_operations.h>
#include <symbols.h>
@@ -13,6 +14,7 @@
static void soc_init(struct device *dev)
{
mtk_mmu_disable_l2c_sram();
+ mcupm_init();
}
static struct device_operations soc_ops = {