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https://github.com/brain-hackers/u-boot-brain
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f12f96cfaf
The get_sw_write_prot API is used to get the write-protected bits of flash by reading the status register and other wards it's API for reading register bits. 1) This kind of requirement can be achieved using existing flash operations and flash locking API calls instead of making a separate flash API. 2) Technically there is no real hardware user for this API to use in the source tree. 3) Having a flash operations API for simple register read bits also make difficult to extend the flash operations. 4) Instead of touching generic code, it is possible to have this functionality inside spinor operations in the form of flash hooks or fixups for associated flash chips. Considering all these points, this patch drops the get_sw_write_prot and associated code bases. Cc: Simon Glass <sjg@chromium.org> Cc: Vignesh R <vigneshr@ti.com> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
96 lines
2.7 KiB
C
96 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2013 Google, Inc
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*/
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#include <common.h>
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#include <command.h>
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#include <dm.h>
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#include <fdtdec.h>
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#include <mapmem.h>
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#include <os.h>
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#include <spi.h>
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#include <spi_flash.h>
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#include <asm/state.h>
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#include <asm/test.h>
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#include <dm/test.h>
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#include <dm/util.h>
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#include <test/ut.h>
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/* Simple test of sandbox SPI flash */
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static int dm_test_spi_flash(struct unit_test_state *uts)
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{
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struct udevice *dev;
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int full_size = 0x200000;
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int size = 0x10000;
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u8 *src, *dst;
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uint map_size;
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ulong map_base;
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uint offset;
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int i;
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src = map_sysmem(0x20000, full_size);
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ut_assertok(os_write_file("spi.bin", src, full_size));
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ut_assertok(uclass_first_device_err(UCLASS_SPI_FLASH, &dev));
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dst = map_sysmem(0x20000 + full_size, full_size);
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ut_assertok(spi_flash_read_dm(dev, 0, size, dst));
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ut_asserteq_mem(src, dst, size);
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/* Erase */
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ut_assertok(spi_flash_erase_dm(dev, 0, size));
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ut_assertok(spi_flash_read_dm(dev, 0, size, dst));
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for (i = 0; i < size; i++)
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ut_asserteq(dst[i], 0xff);
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/* Write some new data */
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for (i = 0; i < size; i++)
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src[i] = i;
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ut_assertok(spi_flash_write_dm(dev, 0, size, src));
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ut_assertok(spi_flash_read_dm(dev, 0, size, dst));
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ut_asserteq_mem(src, dst, size);
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/* Check mapping */
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ut_assertok(dm_spi_get_mmap(dev, &map_base, &map_size, &offset));
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ut_asserteq(0x1000, map_base);
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ut_asserteq(0x2000, map_size);
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ut_asserteq(0x100, offset);
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/*
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* Since we are about to destroy all devices, we must tell sandbox
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* to forget the emulation device
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*/
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sandbox_sf_unbind_emul(state_get_current(), 0, 0);
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return 0;
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}
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DM_TEST(dm_test_spi_flash, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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/* Functional test that sandbox SPI flash works correctly */
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static int dm_test_spi_flash_func(struct unit_test_state *uts)
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{
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/*
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* Create an empty test file and run the SPI flash tests. This is a
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* long way from being a unit test, but it does test SPI device and
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* emulator binding, probing, the SPI flash emulator including
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* device tree decoding, plus the file-based backing store of SPI.
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*
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* More targeted tests could be created to perform the above steps
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* one at a time. This might not increase test coverage much, but
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* it would make bugs easier to find. It's not clear whether the
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* benefit is worth the extra complexity.
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*/
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ut_asserteq(0, run_command_list(
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"host save hostfs - 0 spi.bin 200000;"
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"sf probe;"
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"sf test 0 10000", -1, 0));
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/*
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* Since we are about to destroy all devices, we must tell sandbox
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* to forget the emulation device
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*/
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sandbox_sf_unbind_emul(state_get_current(), 0, 0);
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return 0;
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}
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DM_TEST(dm_test_spi_flash_func, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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