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