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