lynxpoint: me: Support ICC clock enables message

This message allows unused clocks to be disabled based on a
devicetree setting in each mainboard.

Change-Id: Ib1988cab3748490cf24028752562c64ccbce2054
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/65250
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/4450
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>

1 files changed, 18 insertions, 0 deletions

diff --git a/src/southbridge/intel/lynxpoint/me.h b/src/southbridge/intel/lynxpoint/me.h
index d919107609..a72778b88f 100644
--- a/src/southbridge/intel/lynxpoint/me.h
+++ b/src/southbridge/intel/lynxpoint/me.h
@@ -286,6 +286,24 @@ struct me_fw_version {
 	u16 recovery_hot_fix;
 } __attribute__ ((packed));
 
+/* ICC Messages */
+#define ICC_SET_CLOCK_ENABLES		0x3
+#define ICC_API_VERSION_LYNXPOINT	0x00030000
+
+struct icc_header {
+	u32 api_version;
+	u32 icc_command;
+	u32 icc_status;
+	u32 length;
+	u32 reserved;
+} __attribute__ ((packed));
+
+struct icc_clock_enables_msg {
+	u32 clock_enables;
+	u32 clock_mask;
+	u32 no_response: 1;
+	u32 reserved: 31;
+} __attribute__ ((packed));
 
 #define HECI_EOP_STATUS_SUCCESS       0x0
 #define HECI_EOP_PERFORM_GLOBAL_RESET 0x1