test: Add flash_physical test

This test is intended to be used for testing the physical layer flash
APIs.

BRANCH=none
BUG=b:155897971
TEST=On dragonclaw v0.2 with Segger J-Trace and servo micro connected:
     ./test/run_device_tests.py -t flash_physical
       => PASS
TEST=On dragontalon with servo micro connected:
     > runtest
       => PASS

Signed-off-by: Tom Hughes <tomhughes@chromium.org>
Change-Id: Ifd3c30da5f42ff84e77a7292cd2a7c88e8c594dd
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2220734
Commit-Queue: Yicheng Li <yichengli@chromium.org>
Tested-by: Yicheng Li <yichengli@chromium.org>
Reviewed-by: Jett Rink <jettrink@chromium.org>

board/hatch_fp/build.mk

@@ -15,6 +15,7 @@ test-list-y=\
        aes \
        compile_time_macros \
        crc32 \
+       flash_physical \
        mpu \
        mutex \
        pingpong \

board/nocturne_fp/build.mk

@@ -16,6 +16,7 @@ test-list-y=\
        aes \
        compile_time_macros \
        crc32 \
+       flash_physical \
        mpu \
        mutex \
        pingpong \

board/nucleo-f412zg/build.mk

@@ -13,6 +13,7 @@ test-list-y=\
        aes \
        compile_time_macros \
        crc32 \
+       flash_physical \
        mpu \
        mutex \
        pingpong \

board/nucleo-h743zi/build.mk

@@ -13,6 +13,7 @@ test-list-y=\
        aes \
        compile_time_macros \
        crc32 \
+       flash_physical \
        mpu \
        mutex \
        pingpong \

test/build.mk

@@ -128,6 +128,7 @@ entropy-y=entropy.o
 extpwr_gpio-y=extpwr_gpio.o
 fan-y=fan.o
 flash-y=flash.o
+flash_physical-y=flash_physical.o
 fpsensor-y=fpsensor.o
 fpsensor_crypto-y=fpsensor_crypto.o
 fpsensor_state-y=fpsensor_state.o

test/flash_physical.c

@@ -0,0 +1,44 @@
+/* Copyright 2020 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.
+ */
+
+#include "flash.h"
+#include "test_util.h"
+
+struct flash_info {
+	int num_flash_banks;
+	int write_protect_bank_offset;
+	int write_protect_bank_count;
+};
+
+#if defined(CHIP_VARIANT_STM32F412)
+struct flash_info flash_info = {
+	.num_flash_banks = 12,
+	.write_protect_bank_offset = 0,
+	.write_protect_bank_count = 5,
+};
+#elif defined(CHIP_VARIANT_STM32H7X3)
+struct flash_info flash_info = {
+	.num_flash_banks = 16,
+	.write_protect_bank_offset = 0,
+	.write_protect_bank_count = 6,
+};
+#else
+#error "Flash info not defined for this chip. Please add it."
+#endif
+
+test_static int test_flash_config(void)
+{
+	TEST_EQ(PHYSICAL_BANKS, flash_info.num_flash_banks, "%d");
+	TEST_EQ(WP_BANK_OFFSET, flash_info.write_protect_bank_offset, "%d");
+	TEST_EQ(WP_BANK_COUNT, flash_info.write_protect_bank_count, "%d");
+	return EC_SUCCESS;
+}
+
+void run_test(int argc, char **argv)
+{
+	ccprintf("Running flash physical test\n");
+	RUN_TEST(test_flash_config);
+	test_print_result();
+}

test/flash_physical.tasklist

@@ -0,0 +1,9 @@
+/* Copyright 2020 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.
+ */
+
+/**
+ * See CONFIG_TASK_LIST in config.h for details.
+ */
+#define CONFIG_TEST_TASK_LIST  /* no tasks */