soc/mediatek: Move the MT8192 MCUPM driver to common

The MPUCM drivers can be shared by MT8192 and MT8195.

TEST=emerge-asurada coreboot;

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Change-Id: I07a66bcf5a149582f34df1cfd08b5514fc5c2eb9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54898
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>

src/soc/mediatek/common/include/soc/mcupm.h

@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef SOC_MEDIATEK_COMMON_MCUPM_H
+#define SOC_MEDIATEK_COMMON_MCUPM_H
+
+#include <soc/addressmap.h>
+#include <types.h>
+
+struct mcupm_regs {
+	u32 sw_rstn;
+};
+static struct mcupm_regs *const mcupm_reg = (void *)MCUPM_CFG_BASE;
+void mcupm_init(void);
+#endif  /* SOC_MEDIATEK_COMMON_MCUPM_H */

src/soc/mediatek/common/mcupm.c

@@ -12,7 +12,7 @@ static void reset_mcupm(struct mtk_mcu *mcu)
 {
 	/* Clear abnormal boot register */
 	write32((void *)ABNORMALBOOT_REG, 0x0);
-	write32(&mt8192_mcupm->sw_rstn, 0x1);
+	write32(&mcupm_reg->sw_rstn, 0x1);
 }
 
 static struct mtk_mcu mcupm = {
@@ -26,7 +26,7 @@ void mcupm_init(void)
 	mcupm.load_buffer = _dram_dma;
 	mcupm.buffer_size = REGION_SIZE(dram_dma);
 
-	write32(&mt8192_mcupm->sw_rstn, 0x0);
+	write32(&mcupm_reg->sw_rstn, 0x0);
 
 	if (mtk_init_mcu(&mcupm))
 		die("%s() failed\n", __func__);

src/soc/mediatek/mt8192/Makefile.inc

@@ -53,7 +53,7 @@ ramstage-y += ../common/gpio.c gpio.c
 ramstage-y += ../common/i2c.c i2c.c
 ramstage-$(CONFIG_SPI_FLASH) += ../common/spi.c spi.c
 ramstage-y += ../common/mcu.c
-ramstage-y += mcupm.c
+ramstage-y += ../common/mcupm.c
 ramstage-y += ../common/mmu_operations.c mmu_operations.c
 ramstage-$(CONFIG_COMMONLIB_STORAGE_MMC) += ../common/msdc.c
 ramstage-y += ../common/mtcmos.c mtcmos.c

src/soc/mediatek/mt8192/include/soc/mcupm.h

@@ -1,14 +0,0 @@
-/* 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 */