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