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dm: sf: Add tests for SPI flash

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Add a simple test for SPI that uses SPI flash. It operates by creating a
SPI flash file and using the 'sf test' command to test that all
operations work correctly.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
This commit is contained in:
Simon Glass 2014-10-13 23:42:11 -06:00
parent ebcab48a03
commit 0ae0cb7b50
3 changed files with 60 additions and 1 deletions
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1
test/dm/Makefile
View file

@ -19,4 +19,5 @@ obj-$(CONFIG_DM_TEST) += ut.o
ifneq ($(CONFIG_SANDBOX),)
obj-$(CONFIG_DM_GPIO) += gpio.o
obj-$(CONFIG_DM_SPI) += spi.o
obj-$(CONFIG_DM_SPI_FLASH) += sf.o
endif

43
test/dm/sf.c Normal file
View file

@ -0,0 +1,43 @@
/*
* Copyright (C) 2013 Google, Inc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <fdtdec.h>
#include <spi.h>
#include <spi_flash.h>
#include <asm/state.h>
#include <dm/ut.h>
#include <dm/test.h>
#include <dm/util.h>
/* Test that sandbox SPI flash works correctly */
static int dm_test_spi_flash(struct dm_test_state *dms)
{
/*
* Create an empty test file and run the SPI flash tests. This is a
* long way from being a unit test, but it does test SPI device and
* emulator binding, probing, the SPI flash emulator including
* device tree decoding, plus the file-based backing store of SPI.
*
* More targeted tests could be created to perform the above steps
* one at a time. This might not increase test coverage much, but
* it would make bugs easier to find. It's not clear whether the
* benefit is worth the extra complexity.
*/
ut_asserteq(0, run_command_list(
"sb save hostfs - spi.bin 0 200000;"
"sf probe;"
"sf test 0 10000", -1, 0));
/*
* 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);

17
test/dm/test.dts
View file

@ -81,7 +81,7 @@
compatible = "google,another-fdt-test";
};
base-gpios {
gpio_a: base-gpios {
compatible = "sandbox,gpio";
gpio-bank-name = "a";
num-gpios = <20>;
@ -92,4 +92,19 @@
gpio-bank-name = "b";
num-gpios = <10>;
};
spi@0 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
compatible = "sandbox,spi";
cs-gpios = <0>, <&gpio_a 0>;
spi.bin@0 {
reg = <0>;
compatible = "spansion,m25p16", "spi-flash";
spi-max-frequency = <40000000>;
sandbox,filename = "spi.bin";
};
};
};