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