a01ee36288
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>
42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#include <device/dram/ddr4.h>
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#include <tests/test.h>
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static void ddr4_speed_mhz_to_mts_test(void **state)
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{
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assert_int_equal(0, ddr4_speed_mhz_to_reported_mts(0));
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assert_int_equal(0, ddr4_speed_mhz_to_reported_mts(667));
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assert_int_equal(1600, ddr4_speed_mhz_to_reported_mts(668));
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assert_int_equal(1600, ddr4_speed_mhz_to_reported_mts(800));
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assert_int_equal(1866, ddr4_speed_mhz_to_reported_mts(801));
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assert_int_equal(1866, ddr4_speed_mhz_to_reported_mts(933));
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assert_int_equal(1866, ddr4_speed_mhz_to_reported_mts(934));
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assert_int_equal(2133, ddr4_speed_mhz_to_reported_mts(1066));
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assert_int_equal(2133, ddr4_speed_mhz_to_reported_mts(1067));
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assert_int_equal(2400, ddr4_speed_mhz_to_reported_mts(1200));
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assert_int_equal(2666, ddr4_speed_mhz_to_reported_mts(1333));
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assert_int_equal(2933, ddr4_speed_mhz_to_reported_mts(1466));
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assert_int_equal(3200, ddr4_speed_mhz_to_reported_mts(1467));
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assert_int_equal(3200, ddr4_speed_mhz_to_reported_mts(1600));
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assert_int_equal(0, ddr4_speed_mhz_to_reported_mts(1601));
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assert_int_equal(0, ddr4_speed_mhz_to_reported_mts(INT16_MAX));
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}
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int main(void)
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{
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const struct CMUnitTest tests[] = {
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cmocka_unit_test(ddr4_speed_mhz_to_mts_test)
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};
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return cmocka_run_group_tests(tests, NULL, NULL);
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}
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