ite: Add initial support for ITE IT8380 chip

Initial support for the ITE IT8380 chip with the following peripherals :
- 8250-like UART module.
- HW timer (with a 128-us tick period).
- GPIO with pins initialization and edge interrupt support.
other functions are stubbed.
- Clock : basic fixed frequency setup only.
It also add the dev board configuration as a test vehicle.

Signed-off-by: Alec Berg <alecaberg@chromium.org>
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>

BRANCH=none
BUG=chrome-os-partner:23575
TEST=make BOARD=it8380dev
on IT8380 dev board, use the EC serial console, use gettime from
console.

Change-Id: Id4bf37d1beb21d1a4bee404c9a0bc500025fe787
Reviewed-on: https://chromium-review.googlesource.com/175481
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Commit-Queue: Alec Berg <alecaberg@chromium.org>
Tested-by: Alec Berg <alecaberg@chromium.org>

1 files changed, 16 insertions, 0 deletions

diff --git a/chip/it83xx/build.mk b/chip/it83xx/build.mk
new file mode 100644
index 0000000000..5906cfe6de
--- /dev/null
+++ b/chip/it83xx/build.mk
@@ -0,0 +1,16 @@
+# -*- makefile -*-
+# Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+#
+# IT83xx chip specific files build
+#
+
+# IT83xx SoC family has an Andes N801 core.
+CORE:=nds32
+
+# Required chip modules
+chip-y=hwtimer.o uart.o gpio.o system.o jtag.o clock.o irq.o
+
+# Optional chip modules
+chip-$(CONFIG_WATCHDOG)+=watchdog.o