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| author | Rob Barnes <robbarnes@google.com> | 2020-09-14 07:46:19 -0600 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2020-09-16 03:24:50 +0000 |
| commit | a01ee36288b26f31fc1e912324293104f33211c3 (patch) | |
| tree | bce1967dab34f331666679524e7d487529cd3038 /tests | |
| parent | fcd7d0518c0719701c7ed58cd0e0869be492d34c (diff) | |
device/dram: Add method for converting MHz to MT/s
Add method for converting DDR4 speed in MHz to MT/s. Checks that MHz is
within a speed grade range.
BUG=b:167155849
TEST=ddr4-test unit test
BRANCH=Zork
Change-Id: I1433f028afb794fe3e397b03f5bd0565494c8130
Signed-off-by: Rob Barnes <robbarnes@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45343
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/device/Makefile.inc | 5 | ||||
| -rw-r--r-- | tests/device/ddr4-test.c | 41 |
2 files changed, 46 insertions, 0 deletions
diff --git a/tests/device/Makefile.inc b/tests/device/Makefile.inc index 10223c52cc..4626c3cf3d 100644 --- a/tests/device/Makefile.inc +++ b/tests/device/Makefile.inc @@ -1,7 +1,12 @@ # SPDX-License-Identifier: GPL-2.0-only tests-y += i2c-test +tests-y += ddr4-test i2c-test-srcs += tests/device/i2c-test.c i2c-test-srcs += src/device/i2c.c i2c-test-mocks += platform_i2c_transfer + +ddr4-test-srcs += tests/device/ddr4-test.c +ddr4-test-srcs += tests/stubs/console.c +ddr4-test-srcs += src/device/dram/ddr4.c
\ No newline at end of file diff --git a/tests/device/ddr4-test.c b/tests/device/ddr4-test.c new file mode 100644 index 0000000000..0a9831da75 --- /dev/null +++ b/tests/device/ddr4-test.c @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <device/dram/ddr4.h> +#include <tests/test.h> + +static void ddr4_speed_mhz_to_mts_test(void **state) +{ + assert_int_equal(0, ddr4_speed_mhz_to_reported_mts(0)); + assert_int_equal(0, ddr4_speed_mhz_to_reported_mts(667)); + + assert_int_equal(1600, ddr4_speed_mhz_to_reported_mts(668)); + assert_int_equal(1600, ddr4_speed_mhz_to_reported_mts(800)); + + assert_int_equal(1866, ddr4_speed_mhz_to_reported_mts(801)); + assert_int_equal(1866, ddr4_speed_mhz_to_reported_mts(933)); + assert_int_equal(1866, ddr4_speed_mhz_to_reported_mts(934)); + + assert_int_equal(2133, ddr4_speed_mhz_to_reported_mts(1066)); + assert_int_equal(2133, ddr4_speed_mhz_to_reported_mts(1067)); + + assert_int_equal(2400, ddr4_speed_mhz_to_reported_mts(1200)); + + assert_int_equal(2666, ddr4_speed_mhz_to_reported_mts(1333)); + + assert_int_equal(2933, ddr4_speed_mhz_to_reported_mts(1466)); + + assert_int_equal(3200, ddr4_speed_mhz_to_reported_mts(1467)); + assert_int_equal(3200, ddr4_speed_mhz_to_reported_mts(1600)); + + assert_int_equal(0, ddr4_speed_mhz_to_reported_mts(1601)); + assert_int_equal(0, ddr4_speed_mhz_to_reported_mts(INT16_MAX)); +} + +int main(void) +{ + const struct CMUnitTest tests[] = { + cmocka_unit_test(ddr4_speed_mhz_to_mts_test) + }; + + return cmocka_run_group_tests(tests, NULL, NULL); +} |