1 files changed, 57 insertions, 0 deletions
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);
+	}
+}