[U-Boot] [PATCH 23/25] test: sf: Add a simple SPI flash test

Simon Glass
2018-11-06T22:21:40Z

The current test is a functional test, covering all the way from the
command line to the sandbox SPI driver. This is useful, but it is easier
to diagnose failures with a smaller test.

Add a simple test which reads and writes data and checks that it is stored
and retrieved correctly.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

test/dm/sf.c | 46 ++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 44 insertions(+), 2 deletions(-)

diff --git a/test/dm/sf.c b/test/dm/sf.c
index 35241b9f574..b23e7f8edd4 100644
--- a/test/dm/sf.c
+++ b/test/dm/sf.c
@@ -6,6 +6,8 @@
#include <common.h>
#include <dm.h>
#include <fdtdec.h>
+#include <mapmem.h>
+#include <os.h>
#include <spi.h>
#include <spi_flash.h>
#include <asm/state.h>
@@ -13,8 +15,48 @@
#include <dm/util.h>
#include <test/ut.h>

-/* Test that sandbox SPI flash works correctly */
+/* Simple test of sandbox SPI flash */
static int dm_test_spi_flash(struct unit_test_state *uts)
+{
+ struct udevice *dev, *emul;
+ int full_size = 0x200000;
+ int size = 0x10000;
+ u8 *src, *dst;
+ int i;
+
+ src = map_sysmem(0x20000, full_size);
+ ut_assertok(os_write_file("spi.bin", src, full_size));
+ ut_assertok(uclass_first_device_err(UCLASS_SPI_FLASH, &dev));
+
+ dst = map_sysmem(0x20000 + full_size, full_size);
+ ut_assertok(spi_flash_read_dm(dev, 0, size, dst));
+ ut_assertok(memcmp(src, dst, size));
+
+ /* Erase */
+ ut_assertok(spi_flash_erase_dm(dev, 0, size));
+ ut_assertok(spi_flash_read_dm(dev, 0, size, dst));
+ for (i = 0; i < size; i++)
+ ut_asserteq(dst[i], 0xff);
+
+ /* Write some new data */
+ for (i = 0; i < size; i++)
+ src[i] = i;
+ ut_assertok(spi_flash_write_dm(dev, 0, size, src));
+ ut_assertok(spi_flash_read_dm(dev, 0, size, dst));
+ ut_assertok(memcmp(src, dst, size));
+
+ /*
+ * Since we are about to destroy all devices, we must tell sandbox
+ * to forget the emulation device
+ */
+ sandbox_sf_unbind_emul(state_get_current(), 0, 0);
+
+ return 0;
+}
+DM_TEST(dm_test_spi_flash, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
+
+/* Functional test that sandbox SPI flash works correctly */
+static int dm_test_spi_flash_func(struct unit_test_state *uts)
{
/*
* Create an empty test file and run the SPI flash tests. This is a
@@ -39,4 +81,4 @@ static int dm_test_spi_flash(struct unit_test_state *uts)

return 0;
}
-DM_TEST(dm_test_spi_flash, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
+DM_TEST(dm_test_spi_flash_func, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
--
2.19.1.930.g4563a0d9d0-goog