Define a few aux registers and check that they can be read/written
individually. Also check that one can access the time-keeping
registers directly and get the expected results.
Signed-off-by: Rasmus Villemoes
---
arch/sandbox/include/asm/rtc.h | 5
test/dm/rtc.c | 45 ++
2 files changed, 50 insertions(+)
diff --git a/arch/sandbox/include/asm/rtc.h b/arch/sandbox/include/asm/rtc.h
index 1fbfea7999..5bb032f59f 100644
--- a/arch/sandbox/include/asm/rtc.h
+++ b/arch/sandbox/include/asm/rtc.h
@@ -21,6 +21,11 @@ enum {
REG_RESET = 0x20,
+ REG_AUX0= 0x30,
+ REG_AUX1,
+ REG_AUX2,
+ REG_AUX3,
+
REG_COUNT = 0x80,
};
diff --git a/test/dm/rtc.c b/test/dm/rtc.c
index e5454139cd..5301805d19 100644
--- a/test/dm/rtc.c
+++ b/test/dm/rtc.c
@@ -9,6 +9,7 @@
#include
#include
#include
+#include
#include
#include
#include
@@ -129,6 +130,50 @@ static int dm_test_rtc_set_get(struct unit_test_state *uts)
}
DM_TEST(dm_test_rtc_set_get, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
+static int dm_test_rtc_read_write(struct unit_test_state *uts)
+{
+ struct rtc_time time;
+ struct udevice *dev, *emul;
+ long old_offset;
+ u8 buf[4], reg;
+
+ ut_assertok(uclass_get_device(UCLASS_RTC, 0, &dev));
+
+ memcpy(buf, "car", 4);
+ ut_assertok(rtc_write(dev, REG_AUX0, buf, 4));
+ memset(buf, '\0', sizeof(buf));
+ ut_assertok(rtc_read(dev, REG_AUX0, buf, 4));
+ ut_asserteq(memcmp(buf, "car", 4), 0);
+
+ reg = 'b';
+ ut_assertok(rtc_write(dev, REG_AUX0, ®, 1));
+ memset(buf, '\0', sizeof(buf));
+ ut_assertok(rtc_read(dev, REG_AUX0, buf, 4));
+ ut_asserteq(memcmp(buf, "bar", 4), 0);
+
+ reg = 't';
+ ut_assertok(rtc_write(dev, REG_AUX2, ®, 1));
+ memset(buf, '\0', sizeof(buf));
+ ut_assertok(rtc_read(dev, REG_AUX1, buf, 3));
+ ut_asserteq(memcmp(buf, "at", 3), 0);
+
+ ut_assertok(i2c_emul_find(dev, &emul));
+ ut_assert(emul != NULL);
+
+ old_offset = sandbox_i2c_rtc_set_offset(emul, false, 0);
+ ut_assertok(dm_rtc_get(dev, &time));
+
+ ut_assertok(rtc_read(dev, REG_SEC, ®, 1));
+ ut_asserteq(time.tm_sec, reg);
+ ut_assertok(rtc_read(dev, REG_MDAY, ®, 1));
+ ut_asserteq(time.tm_mday, reg);
+
+ sandbox_i2c_rtc_set_offset(emul, true, old_offset);
+
+ return 0;
+}
+DM_TEST(dm_test_rtc_read_write, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
+
/* Reset the time */
static int dm_test_rtc_reset(struct unit_test_state *uts)
{
--
2.23.0
