Move ECPM init from common to SoC code

ECPM is an ITE system block. Move it out of common code.

Signed-off-by: Tim Crawford <tcrawford@system76.com>

Author: crawfxrd

src/board/system76/common/common.mk

@@ -4,7 +4,6 @@ board-common-y += acpi.c
 board-common-y += battery.c
 board-common-y += config.c
 board-common-$(CONFIG_HAVE_DGPU) += dgpu.c
-board-common-y += ecpm.c
 board-common-$(CONFIG_BUS_ESPI) += espi.c
 board-common-y += fan.c
 board-common-y += kbc.c

src/board/system76/common/ecpm.c

@@ -6,7 +6,6 @@
 #include <board/battery.h>
 #include <board/board.h>
 #include <board/dgpu.h>
-#include <board/ecpm.h>
 #include <board/fan.h>
 #include <board/gpio.h>
 #include <board/kbc.h>
@@ -60,7 +59,6 @@ void init(void) {
 #if CONFIG_HAVE_DGPU
     dgpu_init();
 #endif
-    ecpm_init();
     kbc_init();
     kbled_init();
 #ifdef PARALLEL_DEBUG

src/board/system76/common/include/board/ecpm.h

@@ -2,6 +2,7 @@
 
 #include <ec/ec.h>
 #include <arch/arch.h>
+#include <ec/ecpm.h>
 #include <ec/gctrl.h>
 #include <common/debug.h>
 #include <common/macro.h>
@@ -25,6 +26,15 @@ static void gctrl_init(void) {
     BADRSEL = 0;
 }
 
+static void ecpm_init(void) {
+    // Clock gate EGPC, CIR, and SWUC
+    CGCTRL2 |= BIT(6) | BIT(5) | BIT(4);
+    // Clock gate UART, SSPI, and DBGR
+    CGCTRL3 |= BIT(2) | BIT(1) | BIT(0);
+    // Clock gate CEC
+    CGCTRL4 |= BIT(0);
+}
+
 void ec_init(void) {
     arch_init();
 
@@ -38,4 +48,5 @@ void ec_init(void) {
 #endif
 
     gctrl_init();
+    ecpm_init();
 }