3 files changed, 40 insertions, 36 deletions
diff --git a/src/mainboard/apple/macbook21/Makefile.inc b/src/mainboard/apple/macbook21/Makefile.inc
index b4f8b6573a..58198971cd 100644
--- a/src/mainboard/apple/macbook21/Makefile.inc
+++ b/src/mainboard/apple/macbook21/Makefile.inc
@@ -1,3 +1,5 @@
 romstage-y += gpio.c
 bootblock-y += early_init.c
 romstage-y += early_init.c
+
+ramstage-y += cstates.c
diff --git a/src/mainboard/apple/macbook21/cstates.c b/src/mainboard/apple/macbook21/cstates.c
new file mode 100644
index 0000000000..8f295040f7
--- /dev/null
+++ b/src/mainboard/apple/macbook21/cstates.c
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <acpi/acpigen.h>
+
+static acpi_cstate_t cst_entries[] = {
+	{
+		.ctype = 1,
+		.latency = 1,
+		.power = 1000,
+		.resource = {
+			.space_id = ACPI_ADDRESS_SPACE_FIXED,
+			.bit_width = ACPI_FFIXEDHW_VENDOR_INTEL,
+			.bit_offset = ACPI_FFIXEDHW_CLASS_MWAIT,
+			.access_size = ACPI_ACCESS_SIZE_UNDEFINED,
+			.addrl = 0,
+			.addrh = 0,
+		}
+	},
+	{
+		.ctype = 2,
+		.latency = 1,
+		.power = 500,
+		.resource = {
+			.space_id = ACPI_ADDRESS_SPACE_FIXED,
+			.bit_width = ACPI_FFIXEDHW_VENDOR_INTEL,
+			.bit_offset = ACPI_FFIXEDHW_CLASS_MWAIT,
+			.access_size = ACPI_ACCESS_SIZE_UNDEFINED,
+			.addrl = 0x10,
+			.addrh = 0,
+		}
+	},
+};
+
+int get_cst_entries(acpi_cstate_t **entries)
+{
+	*entries = cst_entries;
+	return ARRAY_SIZE(cst_entries);
+}
diff --git a/src/mainboard/apple/macbook21/mainboard.c b/src/mainboard/apple/macbook21/mainboard.c
index 447837ba54..27d0363e4f 100644
--- a/src/mainboard/apple/macbook21/mainboard.c
+++ b/src/mainboard/apple/macbook21/mainboard.c
@@ -2,47 +2,11 @@
 
 #include <device/device.h>
 #include <northbridge/intel/i945/i945.h>
-#include <acpi/acpigen.h>
 #include <drivers/intel/gma/int15.h>
 #include <ec/acpi/ec.h>
 
 #define PANEL INT15_5F35_CL_DISPLAY_DEFAULT
 
-static acpi_cstate_t cst_entries[] = {
-	{
-		.ctype = 1,
-		.latency = 1,
-		.power = 1000,
-		.resource = {
-			.space_id = ACPI_ADDRESS_SPACE_FIXED,
-			.bit_width = ACPI_FFIXEDHW_VENDOR_INTEL,
-			.bit_offset = ACPI_FFIXEDHW_CLASS_MWAIT,
-			.access_size = ACPI_ACCESS_SIZE_UNDEFINED,
-			.addrl = 0,
-			.addrh = 0,
-		}
-	},
-	{
-		.ctype = 2,
-		.latency = 1,
-		.power = 500,
-		.resource = {
-			.space_id = ACPI_ADDRESS_SPACE_FIXED,
-			.bit_width = ACPI_FFIXEDHW_VENDOR_INTEL,
-			.bit_offset = ACPI_FFIXEDHW_CLASS_MWAIT,
-			.access_size = ACPI_ACCESS_SIZE_UNDEFINED,
-			.addrl = 0x10,
-			.addrh = 0,
-		}
-	},
-};
-
-int get_cst_entries(acpi_cstate_t **entries)
-{
-	*entries = cst_entries;
-	return ARRAY_SIZE(cst_entries);
-}
-
 static void mainboard_init(struct device *dev)
 {
 	install_intel_vga_int15_handler(GMA_INT15_ACTIVE_LFP_INT_LVDS, GMA_INT15_PANEL_FIT_DEFAULT, PANEL, 3);