LXR uboot/test/dm/sf.c

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