xref: /openbmc/u-boot/test/dm/sf.c (revision 35546f6f)
1 /*
2  * Copyright (C) 2013 Google, Inc
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #include <common.h>
8 #include <dm.h>
9 #include <fdtdec.h>
10 #include <spi.h>
11 #include <spi_flash.h>
12 #include <asm/state.h>
13 #include <dm/test.h>
14 #include <dm/util.h>
15 #include <test/ut.h>
16 
17 /* Test that sandbox SPI flash works correctly */
18 static int dm_test_spi_flash(struct unit_test_state *uts)
19 {
20 	/*
21 	 * Create an empty test file and run the SPI flash tests. This is a
22 	 * long way from being a unit test, but it does test SPI device and
23 	 * emulator binding, probing, the SPI flash emulator including
24 	 * device tree decoding, plus the file-based backing store of SPI.
25 	 *
26 	 * More targeted tests could be created to perform the above steps
27 	 * one at a time. This might not increase test coverage much, but
28 	 * it would make bugs easier to find. It's not clear whether the
29 	 * benefit is worth the extra complexity.
30 	 */
31 	ut_asserteq(0, run_command_list(
32 		"sb save hostfs - 0 spi.bin 200000;"
33 		"sf probe;"
34 		"sf test 0 10000", -1,  0));
35 	/*
36 	 * Since we are about to destroy all devices, we must tell sandbox
37 	 * to forget the emulation device
38 	 */
39 	sandbox_sf_unbind_emul(state_get_current(), 0, 0);
40 
41 	return 0;
42 }
43 DM_TEST(dm_test_spi_flash, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
44