test: dm: Add test for fastboot mmc partition naming

This test verifies the mapping between fastboot partitions and partitions
as understood by U-Boot. It also tests the creation of GPT partitions,
though that is not the primary goal.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

configs/sandbox64_defconfig

@@ -111,6 +111,8 @@ CONFIG_DM_DEMO=y
 CONFIG_DM_DEMO_SIMPLE=y
 CONFIG_DM_DEMO_SHAPE=y
 CONFIG_DFU_SF=y
+CONFIG_FASTBOOT_FLASH=y
+CONFIG_FASTBOOT_FLASH_MMC_DEV=0
 CONFIG_GPIO_HOG=y
 CONFIG_DM_GPIO_LOOKUP_LABEL=y
 CONFIG_PM8916_GPIO=y

configs/sandbox_defconfig

@@ -137,6 +137,8 @@ CONFIG_DFU_SF=y
 CONFIG_DMA=y
 CONFIG_DMA_CHANNELS=y
 CONFIG_SANDBOX_DMA=y
+CONFIG_FASTBOOT_FLASH=y
+CONFIG_FASTBOOT_FLASH_MMC_DEV=0
 CONFIG_GPIO_HOG=y
 CONFIG_DM_GPIO_LOOKUP_LABEL=y
 CONFIG_PM8916_GPIO=y

test/dm/Makefile

@@ -95,5 +95,8 @@ obj-$(CONFIG_SCMI_FIRMWARE) += scmi.o
 ifneq ($(CONFIG_PINMUX),)
 obj-$(CONFIG_PINCONF) += pinmux.o
 endif
+ifneq ($(CONFIG_EFI_PARTITION),)
+obj-$(CONFIG_FASTBOOT_FLASH_MMC) += fastboot.o
+endif
 endif
 endif # !SPL

test/dm/fastboot.c

+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2015 Google, Inc
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <fastboot.h>
+#include <fb_mmc.h>
+#include <mmc.h>
+#include <part.h>
+#include <part_efi.h>
+#include <dm/test.h>
+#include <test/ut.h>
+#include <linux/stringify.h>
+
+#define FB_ALIAS_PREFIX "fastboot_partition_alias_"
+
+static int dm_test_fastboot_mmc_part(struct unit_test_state *uts)
+{
+	char response[FASTBOOT_RESPONSE_LEN] = {0};
+	char str_disk_guid[UUID_STR_LEN + 1];
+	struct blk_desc *mmc_dev_desc, *fb_dev_desc;
+	struct disk_partition part_info;
+	struct disk_partition parts[2] = {
+		{
+			.start = 48, /* GPT data takes up the first 34 blocks or so */
+			.size = 1,
+			.name = "test1",
+		},
+		{
+			.start = 49,
+			.size = 1,
+			.name = "test2",
+		},
+	};
+
+	ut_assertok(blk_get_device_by_str("mmc",
+					  __stringify(CONFIG_FASTBOOT_FLASH_MMC_DEV),
+					  &mmc_dev_desc));
+	if (CONFIG_IS_ENABLED(RANDOM_UUID)) {
+		gen_rand_uuid_str(parts[0].uuid, UUID_STR_FORMAT_STD);
+		gen_rand_uuid_str(parts[1].uuid, UUID_STR_FORMAT_STD);
+		gen_rand_uuid_str(str_disk_guid, UUID_STR_FORMAT_STD);
+	}
+	ut_assertok(gpt_restore(mmc_dev_desc, str_disk_guid, parts,
+				ARRAY_SIZE(parts)));
+
+	/* "Classic" partition labels */
+	ut_asserteq(1, fastboot_mmc_get_part_info("test1", &fb_dev_desc,
+						  &part_info, response));
+	ut_asserteq(2, fastboot_mmc_get_part_info("test2", &fb_dev_desc,
+						  &part_info, response));
+
+	/* Test aliases */
+	ut_assertnull(env_get(FB_ALIAS_PREFIX "test3"));
+	ut_assertok(env_set(FB_ALIAS_PREFIX "test3", "test1"));
+	ut_asserteq(1, fastboot_mmc_get_part_info("test3", &fb_dev_desc,
+						  &part_info, response));
+	ut_assertok(env_set(FB_ALIAS_PREFIX "test3", NULL));
+
+	return 0;
+}
+DM_TEST(dm_test_fastboot_mmc_part, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);