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soc/mediatek/mt8183: Use mtk_init_mcu to init SSPM 

Use mtk_init_mcu API to load and run sspm firmware.

TEST=emerge-kukui coreboot

Change-Id: I63c4b99342bdebb2a94cbf0c6380b0a6817853e7
Signed-off-by: Yidi Lin <yidi.lin@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48233
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
This commit is contained in:
Yidi Lin 2020-12-07 20:43:50 +08:00 committed by Hung-Te Lin
parent c221d56478
commit eb69dd60ef
3 changed files with 23 additions and 16 deletions
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7
src/soc/mediatek/mt8183/Kconfig
View File

@ -45,4 +45,11 @@ config MEMORY_TEST
bool
default y
config SSPM_FIRMWARE
string
default "sspm.bin"
help
The file name of the MediaTek SSPM firmware.
endif

1
src/soc/mediatek/mt8183/Makefile.inc
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@ -50,6 +50,7 @@ ramstage-y += ../common/ddp.c ddp.c
ramstage-y += ../common/dsi.c dsi.c
ramstage-y += ../common/gpio.c gpio.c
ramstage-y += ../common/i2c.c i2c.c
ramstage-y += ../common/mcu.c
ramstage-y += ../common/mmu_operations.c mmu_operations.c
ramstage-y += ../common/mtcmos.c mtcmos.c
ramstage-y += ../common/pmic_wrap.c

31
src/soc/mediatek/mt8183/sspm.c
View File

@ -1,26 +1,25 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#include <arch/barrier.h>
#include <cbfs.h>
#include <console/console.h>
#include <device/mmio.h>
#include <soc/mcu_common.h>
#include <soc/sspm.h>
#include <string.h>
#include <soc/symbols.h>
#define BUF_SIZE (64 * KiB)
static uint8_t sspm_bin[BUF_SIZE] __aligned(8);
static void reset_sspm(struct mtk_mcu *mcu)
{
write32(&mt8183_sspm->sw_rstn, 0x1);
}
static struct mtk_mcu sspm = {
.firmware_name = CONFIG_SSPM_FIRMWARE,
.run_address = (void *)SSPM_SRAM_BASE,
.reset = reset_sspm,
};
void sspm_init(void)
{
const char *file_name = "sspm.bin";
size_t fw_size = cbfs_load(file_name, sspm_bin, sizeof(sspm_bin));
sspm.load_buffer = _dram_dma;
sspm.buffer_size = REGION_SIZE(dram_dma);
if (fw_size == 0)
die("SSPM file :sspm.bin not found.");
memcpy((void *)SSPM_SRAM_BASE, sspm_bin, fw_size);
/* Memory barrier to ensure that all fw code is loaded
before we release the reset pin. */
mb();
write32(&mt8183_sspm->sw_rstn, 0x1);
mtk_init_mcu(&sspm);
}