5 files changed, 117 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8192/Makefile.inc b/src/soc/mediatek/mt8192/Makefile.inc
index a81e5329f0..415acf3207 100644
--- a/src/soc/mediatek/mt8192/Makefile.inc
+++ b/src/soc/mediatek/mt8192/Makefile.inc
@@ -40,6 +40,7 @@ romstage-y += mt6359p.c
 
 ramstage-y += ../common/auxadc.c
 ramstage-y += ../common/ddp.c ddp.c
+ramstage-y += devapc.c
 ramstage-y += dpm.c
 ramstage-y += ../common/dsi.c ../common/mtk_mipi_dphy.c
 ramstage-y += flash_controller.c
diff --git a/src/soc/mediatek/mt8192/devapc.c b/src/soc/mediatek/mt8192/devapc.c
new file mode 100644
index 0000000000..77d5fc5fff
--- /dev/null
+++ b/src/soc/mediatek/mt8192/devapc.c
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <console/console.h>
+#include <soc/devapc.h>
+
+static void *getreg(uintptr_t base, unsigned int offset)
+{
+	return (void *)(base + offset);
+}
+
+static void infra_master_init(uintptr_t base)
+{
+	/* Sidband */
+	SET32_BITFIELDS(getreg(base, MAS_SEC_0), SCP_SSPM_SEC, 1, CPU_EB_SEC, 1);
+
+	/* Domain */
+	SET32_BITFIELDS(getreg(base, MAS_SEC_0), PCIE_DOM, MAS_DOMAIN_1);
+	SET32_BITFIELDS(getreg(base, MAS_DOM_1), SCP_SSPM_DOM, MAS_DOMAIN_2,
+			CPU_EB_DOM, MAS_DOMAIN_2);
+}
+
+static void peri_master_init(uintptr_t base)
+{
+	/* Domain */
+	SET32_BITFIELDS(getreg(base, MAS_DOM_0), SPM_DOM, MAS_DOMAIN_2);
+}
+
+static uintptr_t devapc_base[DEVAPC_AO_MAX] = {
+	DEVAPC_INFRA_AO_BASE,
+	DEVAPC_PERI_AO_BASE,
+	DEVAPC_PERI2_AO_BASE,
+	DEVAPC_PERI_PAR_AO_BASE,
+	DEVAPC_FMEM_AO_BASE,
+};
+
+static void (*master_init[DEVAPC_AO_MAX])(uintptr_t) = {
+	infra_master_init,
+	peri_master_init,
+};
+
+void dapc_init(void)
+{
+	int i;
+	uintptr_t devapc_ao_base;
+
+	for (i = 0; i < ARRAY_SIZE(devapc_base); i++) {
+		devapc_ao_base = devapc_base[i];
+
+		/* Init dapc */
+		write32(getreg(devapc_ao_base, AO_APC_CON), 0x0);
+		write32(getreg(devapc_ao_base, AO_APC_CON), 0x1);
+
+		/* Init master */
+		if (master_init[i])
+			master_init[i](devapc_ao_base);
+	}
+}
diff --git a/src/soc/mediatek/mt8192/include/soc/addressmap.h b/src/soc/mediatek/mt8192/include/soc/addressmap.h
index 7660bccac1..e4d57b05fc 100644
--- a/src/soc/mediatek/mt8192/include/soc/addressmap.h
+++ b/src/soc/mediatek/mt8192/include/soc/addressmap.h
@@ -28,6 +28,11 @@ enum {
 	PMIF_SPMI_BASE		= IO_PHYS + 0x00027000,
 	PMICSPI_MST_BASE	= IO_PHYS + 0x00028000,
 	SPMI_MST_BASE		= IO_PHYS + 0x00029000,
+	DEVAPC_INFRA_AO_BASE	= IO_PHYS + 0x00030000,
+	DEVAPC_PERI_AO_BASE	= IO_PHYS + 0x00034000,
+	DEVAPC_PERI2_AO_BASE	= IO_PHYS + 0x00038000,
+	DEVAPC_PERI_PAR_AO_BASE	= IO_PHYS + 0x0003C000,
+	DEVAPC_FMEM_AO_BASE	= IO_PHYS + 0x00044000,
 	I2C_DMA_BASE		= IO_PHYS + 0x00217080,
 	EMI_BASE		= IO_PHYS + 0x00219000,
 	EMI_MPU_BASE		= IO_PHYS + 0x00226000,
diff --git a/src/soc/mediatek/mt8192/include/soc/devapc.h b/src/soc/mediatek/mt8192/include/soc/devapc.h
new file mode 100644
index 0000000000..f227aaadd3
--- /dev/null
+++ b/src/soc/mediatek/mt8192/include/soc/devapc.h
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef SOC_MEDIATEK_MT8192_DEVAPC_H
+#define SOC_MEDIATEK_MT8192_DEVAPC_H
+
+#include <device/mmio.h>
+#include <soc/addressmap.h>
+
+void dapc_init(void);
+
+#define DEVAPC_AO_MAX 6
+
+enum devapc_ao_offset {
+	MAS_DOM_0 = 0x0900,
+	MAS_DOM_1 = 0x0904,
+	MAS_SEC_0 = 0x0A00,
+	AO_APC_CON = 0x0F00,
+};
+
+/* INFRA */
+DEFINE_BIT(SCP_SSPM_SEC, 3)
+DEFINE_BIT(CPU_EB_SEC, 4)
+
+DEFINE_BITFIELD(PCIE_DOM, 19, 16)		/* 2 */
+DEFINE_BITFIELD(SCP_SSPM_DOM, 3, 0)		/* 4 */
+DEFINE_BITFIELD(CPU_EB_DOM, 11, 8)		/* 5 */
+
+/* PERI */
+DEFINE_BITFIELD(SPM_DOM, 3, 0)		/* 0 */
+
+enum master_domain {
+	MAS_DOMAIN_0 = 0,
+	MAS_DOMAIN_1,
+	MAS_DOMAIN_2,
+	MAS_DOMAIN_3,
+	MAS_DOMAIN_4,
+	MAS_DOMAIN_5,
+	MAS_DOMAIN_6,
+	MAS_DOMAIN_7,
+	MAS_DOMAIN_8,
+	MAS_DOMAIN_9,
+	MAS_DOMAIN_10,
+	MAS_DOMAIN_11,
+	MAS_DOMAIN_12,
+	MAS_DOMAIN_13,
+	MAS_DOMAIN_14,
+	MAS_DOMAIN_15,
+	MAS_DOMAIN_MAX,
+};
+
+
+#endif /* SOC_MEDIATEK_MT8192_DEVAPC_H */
diff --git a/src/soc/mediatek/mt8192/soc.c b/src/soc/mediatek/mt8192/soc.c
index 8696f342d4..883f4dc8da 100644
--- a/src/soc/mediatek/mt8192/soc.c
+++ b/src/soc/mediatek/mt8192/soc.c
@@ -1,6 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <device/device.h>
+#include <soc/devapc.h>
 #include <soc/emi.h>
 #include <soc/mcupm.h>
 #include <soc/mmu_operations.h>
@@ -16,6 +17,7 @@ static void soc_read_resources(struct device *dev)
 static void soc_init(struct device *dev)
 {
 	mtk_mmu_disable_l2c_sram();
+	dapc_init();
 	mcupm_init();
 	sspm_init();
 	ufs_disable_refclk();