From 74526f00ccae51010550d7e90313b67a31440320 Mon Sep 17 00:00:00 2001
From: Guillaume Revaillot <revaillot@archos.com>
Date: Mon, 4 Feb 2019 13:38:19 +0100
Subject: [PATCH] stm32g0: add crc.

Regular crc-v2 peripheral, except that CRC_IDR is now 32bit wide - but
not used.
---
 include/libopencm3/stm32/crc.h    |  2 ++
 include/libopencm3/stm32/g0/crc.h | 31 +++++++++++++++++++++++++++++++
 lib/stm32/g0/Makefile             |  1 +
 3 files changed, 34 insertions(+)
 create mode 100644 include/libopencm3/stm32/g0/crc.h

diff --git a/include/libopencm3/stm32/crc.h b/include/libopencm3/stm32/crc.h
index c9bd418b..65c6803e 100644
--- a/include/libopencm3/stm32/crc.h
+++ b/include/libopencm3/stm32/crc.h
@@ -36,6 +36,8 @@
 #       include <libopencm3/stm32/l1/crc.h>
 #elif defined(STM32L4)
 #       include <libopencm3/stm32/l4/crc.h>
+#elif defined(STM32G0)
+#       include <libopencm3/stm32/g0/crc.h>
 #else
 #       error "stm32 family not defined."
 #endif
diff --git a/include/libopencm3/stm32/g0/crc.h b/include/libopencm3/stm32/g0/crc.h
new file mode 100644
index 00000000..43d689d9
--- /dev/null
+++ b/include/libopencm3/stm32/g0/crc.h
@@ -0,0 +1,31 @@
+/** @defgroup crc_defines CRC Defines
+ *
+ * @brief <b>Defined Constants and Types for the STM32G0xx CRC Generator </b>
+ *
+ * @ingroup STM32G0xx_defines
+ *
+ * LGPL License Terms @ref lgpl_license
+ */
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LIBOPENCM3_CRC_H
+#define LIBOPENCM3_CRC_H
+
+#include <libopencm3/stm32/common/crc_v2.h>
+
+#endif
diff --git a/lib/stm32/g0/Makefile b/lib/stm32/g0/Makefile
index 3d52362b..ceadfd8c 100644
--- a/lib/stm32/g0/Makefile
+++ b/lib/stm32/g0/Makefile
@@ -44,6 +44,7 @@ OBJS += usart_common_all.o usart_common_v2.o
 OBJS += spi_common_all.o spi_common_v1_frf.o
 OBJS += i2c_common_v2.o
 OBJS += rng_common_v1.o
+OBJS += crc_common_all.o
 
 VPATH +=../:../../cm3:../common