1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Copyright (C) 2013 Google, Inc
4 */
5
6#include <common.h>
7#include <command.h>
8#include <dm.h>
9#include <fdtdec.h>
10#include <mapmem.h>
11#include <os.h>
12#include <spi.h>
13#include <spi_flash.h>
14#include <asm/state.h>
15#include <asm/test.h>
16#include <dm/test.h>
17#include <dm/util.h>
18#include <test/test.h>
19#include <test/ut.h>
20
21/* Simple test of sandbox SPI flash */
22static int dm_test_spi_flash(struct unit_test_state *uts)
23{
24	struct udevice *dev, *emul;
25	int full_size = 0x200000;
26	int size = 0x10000;
27	u8 *src, *dst;
28	uint map_size;
29	ulong map_base;
30	uint offset;
31	int i;
32
33	src = map_sysmem(0x20000, full_size);
34	ut_assertok(os_write_file("spi.bin", src, full_size));
35	ut_assertok(uclass_first_device_err(UCLASS_SPI_FLASH, &dev));
36
37	dst = map_sysmem(0x20000 + full_size, full_size);
38	ut_assertok(spi_flash_read_dm(dev, 0, size, dst));
39	ut_asserteq_mem(src, dst, size);
40
41	/* Erase */
42	ut_assertok(spi_flash_erase_dm(dev, 0, size));
43	ut_assertok(spi_flash_read_dm(dev, 0, size, dst));
44	for (i = 0; i < size; i++)
45		ut_asserteq(dst[i], 0xff);
46
47	/* Write some new data */
48	for (i = 0; i < size; i++)
49		src[i] = i;
50	ut_assertok(spi_flash_write_dm(dev, 0, size, src));
51	ut_assertok(spi_flash_read_dm(dev, 0, size, dst));
52	ut_asserteq_mem(src, dst, size);
53
54	/* Try the write-protect stuff */
55	ut_assertok(uclass_first_device_err(UCLASS_SPI_EMUL, &emul));
56	ut_asserteq(0, spl_flash_get_sw_write_prot(dev));
57	sandbox_sf_set_block_protect(emul, 1);
58	ut_asserteq(1, spl_flash_get_sw_write_prot(dev));
59	sandbox_sf_set_block_protect(emul, 0);
60	ut_asserteq(0, spl_flash_get_sw_write_prot(dev));
61
62	/* Check mapping */
63	ut_assertok(dm_spi_get_mmap(dev, &map_base, &map_size, &offset));
64	ut_asserteq(0x1000, map_base);
65	ut_asserteq(0x2000, map_size);
66	ut_asserteq(0x100, offset);
67
68	/*
69	 * Since we are about to destroy all devices, we must tell sandbox
70	 * to forget the emulation device
71	 */
72	sandbox_sf_unbind_emul(state_get_current(), 0, 0);
73
74	return 0;
75}
76DM_TEST(dm_test_spi_flash, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
77
78/* Functional test that sandbox SPI flash works correctly */
79static int dm_test_spi_flash_func(struct unit_test_state *uts)
80{
81	/*
82	 * Create an empty test file and run the SPI flash tests. This is a
83	 * long way from being a unit test, but it does test SPI device and
84	 * emulator binding, probing, the SPI flash emulator including
85	 * device tree decoding, plus the file-based backing store of SPI.
86	 *
87	 * More targeted tests could be created to perform the above steps
88	 * one at a time. This might not increase test coverage much, but
89	 * it would make bugs easier to find. It's not clear whether the
90	 * benefit is worth the extra complexity.
91	 */
92	ut_asserteq(0, run_command_list(
93		"host save hostfs - 0 spi.bin 200000;"
94		"sf probe;"
95		"sf test 0 10000", -1,  0));
96	/*
97	 * Since we are about to destroy all devices, we must tell sandbox
98	 * to forget the emulation device
99	 */
100	sandbox_sf_unbind_emul(state_get_current(), 0, 0);
101
102	return 0;
103}
104DM_TEST(dm_test_spi_flash_func, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
105