10 files changed, 91 insertions, 2 deletions
diff --git a/src/mainboard/clevo/cml-u/Kconfig b/src/mainboard/clevo/cml-u/Kconfig
index bd895e2e81..cd22286de7 100644
--- a/src/mainboard/clevo/cml-u/Kconfig
+++ b/src/mainboard/clevo/cml-u/Kconfig
@@ -20,6 +20,7 @@ config BOARD_CLEVO_CMLU_COMMON
 config BOARD_CLEVO_L140CU_BASE
 	bool
 	select BOARD_CLEVO_CMLU_COMMON
+	select EC_CLEVO_IT5570E
 	select HAVE_SPD_IN_CBFS
 
 if BOARD_CLEVO_CMLU_COMMON
@@ -71,7 +72,7 @@ config SEABIOS_PS2_TIMEOUT
 	depends on PAYLOAD_SEABIOS
 	default 500
 
-config EC_SYSTEM76_EC_BAT_THRESHOLDS
-	default n if BOARD_CLEVO_L140CU_BASE
+config EC_CLEVO_IT5570E_MEM_BASE
+	default 0xfe700000
 
 endif
diff --git a/src/mainboard/clevo/cml-u/Makefile.inc b/src/mainboard/clevo/cml-u/Makefile.inc
index d9f4ae9ee0..e71e87a07d 100644
--- a/src/mainboard/clevo/cml-u/Makefile.inc
+++ b/src/mainboard/clevo/cml-u/Makefile.inc
@@ -1,4 +1,5 @@
 CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/include
+CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/variants/$(VARIANT_DIR)/acpi
 
 bootblock-y += bootblock.c
 bootblock-y += variants/$(VARIANT_DIR)/gpio_early.c
@@ -9,6 +10,9 @@ romstage-y += variants/$(VARIANT_DIR)/romstage.c
 ramstage-y += ramstage.c
 ramstage-y += variants/$(VARIANT_DIR)/gpio.c
 ramstage-y += variants/$(VARIANT_DIR)/hda_verb.c
+ramstage-$(CONFIG_HAVE_ACPI_TABLES) += fadt.c
 ramstage-$(CONFIG_MAINBOARD_USE_LIBGFXINIT) += variants/$(VARIANT_DIR)/gma-mainboard.ads
 
+smm-$(CONFIG_EC_CLEVO_IT5570E) += smihandler.c
+
 subdirs-y += variants/$(VARIANT_DIR)
diff --git a/src/mainboard/clevo/cml-u/bootblock.c b/src/mainboard/clevo/cml-u/bootblock.c
index b351fbd8ef..ee6c0b31ce 100644
--- a/src/mainboard/clevo/cml-u/bootblock.c
+++ b/src/mainboard/clevo/cml-u/bootblock.c
@@ -1,9 +1,21 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <bootblock_common.h>
+#include <ec/clevo/it5570e/early_init.h>
+#include <intelblocks/lpc_lib.h>
 #include <variant/gpio.h>
 
 void bootblock_mainboard_early_init(void)
 {
 	variant_configure_early_gpios();
+
+	/* Open LGMR window for EC */
+	if (CONFIG(EC_CLEVO_IT5570E))
+		lpc_open_mmio_window(CONFIG_EC_CLEVO_IT5570E_MEM_BASE, 64 * KiB);
+}
+
+void bootblock_mainboard_init(void)
+{
+	if (CONFIG(EC_CLEVO_IT5570E))
+		ec_configure_kbled_booteffect();
 }
diff --git a/src/mainboard/clevo/cml-u/cmos.default b/src/mainboard/clevo/cml-u/cmos.default
index f3330e5070..a20f1b187a 100644
--- a/src/mainboard/clevo/cml-u/cmos.default
+++ b/src/mainboard/clevo/cml-u/cmos.default
@@ -1,3 +1,14 @@
 boot_option=Fallback
 debug_level=Debug
 power_on_after_fail=Disable
+
+# EC options
+ac_fan_always_on=Disable
+camera_boot_state=Keep
+fn_win_swap=Disable
+tp_toggle_mode=CtrlAltF9
+flexicharger_on=Disable
+flexicharger_start=95
+flexicharger_stop=100
+kbled_booteffect=Disable
+kbled_timeout=15
diff --git a/src/mainboard/clevo/cml-u/cmos.layout b/src/mainboard/clevo/cml-u/cmos.layout
index b527f81b08..391deb16eb 100644
--- a/src/mainboard/clevo/cml-u/cmos.layout
+++ b/src/mainboard/clevo/cml-u/cmos.layout
@@ -24,6 +24,20 @@ entries
 410		  2	e	7		power_on_after_fail
 
 # -----------------------------------------------------------------
+# EC options
+500		  1	e	1		ac_fan_always_on
+502		  2	e	7		camera_boot_state
+504		  1	e	1		fn_win_swap
+505		  1	e	8		tp_toggle_mode
+
+519		  1	e	1		flexicharger_on
+520		  8	h	0		flexicharger_start
+528		  8	h	0		flexicharger_stop
+
+543		  1	e	1		kbled_booteffect
+544		 16	h	0		kbled_timeout
+
+# -----------------------------------------------------------------
 # vboot nv area
 800		128	r	0		vbnv
 
@@ -54,6 +68,8 @@ enumerations
 7	0	Disable
 7	1	Enable
 7	2	Keep
+8	0	CtrlAltF9
+8	1	KeycodeF7F8
 
 # -----------------------------------------------------------------
 checksums
diff --git a/src/mainboard/clevo/cml-u/dsdt.asl b/src/mainboard/clevo/cml-u/dsdt.asl
index e7963b2858..71556dbf10 100644
--- a/src/mainboard/clevo/cml-u/dsdt.asl
+++ b/src/mainboard/clevo/cml-u/dsdt.asl
@@ -28,4 +28,9 @@ DefinitionBlock(
 	{
 		#include <drivers/pc80/pc/ps2_controller.asl>
 	}
+
+#if CONFIG(EC_CLEVO_IT5570E)
+	#include <variant.asl>
+	#include <ec/clevo/it5570e/acpi/common.asl>
+#endif
 }
diff --git a/src/mainboard/clevo/cml-u/fadt.c b/src/mainboard/clevo/cml-u/fadt.c
new file mode 100644
index 0000000000..28ed7e97c3
--- /dev/null
+++ b/src/mainboard/clevo/cml-u/fadt.c
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <acpi/acpi.h>
+#include <intelblocks/acpi.h>
+
+void mainboard_fill_fadt(acpi_fadt_t *fadt)
+{
+	/* Control method power button (EC) */
+	fadt->flags |= ACPI_FADT_POWER_BUTTON;
+}
diff --git a/src/mainboard/clevo/cml-u/smihandler.c b/src/mainboard/clevo/cml-u/smihandler.c
new file mode 100644
index 0000000000..e53ab452a6
--- /dev/null
+++ b/src/mainboard/clevo/cml-u/smihandler.c
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <console/console.h>
+#include <cpu/x86/smm.h>
+#include <ec/clevo/it5570e/smm.h>
+#include <intelblocks/smihandler.h>
+
+void mainboard_smi_sleep(u8 slp_typ)
+{
+	printk(BIOS_DEBUG, "Mainboard SMI sleep handler: %02x\n", slp_typ);
+	ec_smi_sleep(slp_typ);
+}
+
+int mainboard_smi_apmc(u8 apmc)
+{
+	printk(BIOS_DEBUG, "Mainboard SMI APMC handler: %02x\n", apmc);
+	ec_smi_apmc(apmc);
+
+	return 0;
+}
diff --git a/src/mainboard/clevo/cml-u/variants/l140cu/acpi/variant.asl b/src/mainboard/clevo/cml-u/variants/l140cu/acpi/variant.asl
new file mode 100644
index 0000000000..7694bfe361
--- /dev/null
+++ b/src/mainboard/clevo/cml-u/variants/l140cu/acpi/variant.asl
@@ -0,0 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#define EC_GPE_SCI	GPE0_DW2_16	/* GPP_E16 */
+#define EC_GPE_PWRB	GPE0_DW1_09	/* GPP_D9 (SWI#) */
+#define EC_GPE_SLPB	GPE0_DW1_09	/* GPP_D9 (SWI#) */
+#define EC_GPE_LID	GPE0_DW1_09	/* GPP_D9 (SWI#) */
diff --git a/src/mainboard/clevo/cml-u/variants/l140cu/devicetree.cb b/src/mainboard/clevo/cml-u/variants/l140cu/devicetree.cb
index 7385fe19c6..ce683b37dc 100644
--- a/src/mainboard/clevo/cml-u/variants/l140cu/devicetree.cb
+++ b/src/mainboard/clevo/cml-u/variants/l140cu/devicetree.cb
@@ -183,6 +183,10 @@ chip soc/intel/cannonlake
 		device pci 1e.2 off	end	# GSPI #0
 		device pci 1e.3 off	end	# GSPI #1
 		device pci 1f.0 on		# LPC Interface
+			chip ec/clevo/it5570e
+				device generic 0 on end
+				register "pl2_on_battery" = "15"
+			end
 			chip drivers/pc80/tpm	# TPM
 				device pnp 0c31.0 on  end
 			end