Commit 0a362d07 authored by Max Filippov's avatar Max Filippov
Browse files

target/xtensa: tests: add ccount write tests



Check that CCOUNT SR is writable and that CCOMPARE timers are updated
when CCOUNT is written to.

Signed-off-by: default avatarMax Filippov <jcmvbkbc@gmail.com>
parent 4f89b41c
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+34 −0
Original line number Diff line number Diff line
@@ -19,6 +19,40 @@ test ccount
    assert  ne, a3, a4
test_end

test ccount_write
    rsr     a3, ccount
    rsr     a4, ccount
    sub     a4, a4, a3
    movi    a2, 0x12345678
    wsr     a2, ccount
    esync
    rsr     a3, ccount
    sub     a3, a3, a2
    slli    a4, a4, 2
    assert  ltu, a3, a4
test_end

test ccount_update_deadline
    movi    a2, 0
    wsr     a2, intenable
    rsr     a2, interrupt
    wsr     a2, intclear
    movi    a2, 0
    wsr     a2, ccompare1
    wsr     a2, ccompare2
    movi    a2, 0x12345678
    wsr     a2, ccompare0
    rsr     a3, interrupt
    assert  eqi, a3, 0
    movi    a2, 0x12345677
    wsr     a2, ccount
    esync
    nop
    rsr     a2, interrupt
    movi    a3, 1 << XCHAL_TIMER0_INTERRUPT
    assert  eq, a2, a3
test_end

test ccompare
    movi    a2, 0
    wsr     a2, intenable