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tests/avocado/machine_aspeed.py: Add an I2C slave test 

The Aspeed 2600 I2C controller supports a slave mode which can be
tested with the I2C echo device. Test extracted from :

  https://lists.nongnu.org/archive/html/qemu-devel/2022-06/msg00183.html

Suggested-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Cédric Le Goater 2023-03-02 13:57:50 +01:00
parent b14037f37f
commit 82e94da587
1 changed files with 10 additions and 0 deletions
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10
tests/avocado/machine_aspeed.py
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@ -199,6 +199,8 @@ class AST2x00Machine(QemuSystemTest):
'tmp105,bus=aspeed.i2c.bus.3,address=0x4d,id=tmp-test');
self.vm.add_args('-device',
'ds1338,bus=aspeed.i2c.bus.3,address=0x32');
self.vm.add_args('-device',
'i2c-echo,bus=aspeed.i2c.bus.3,address=0x42');
self.do_test_arm_aspeed_buildroot_start(image_path, '0xf00')
exec_command_and_wait_for_pattern(self,
@ -217,6 +219,14 @@ class AST2x00Machine(QemuSystemTest):
year = time.strftime("%Y")
exec_command_and_wait_for_pattern(self, 'hwclock -f /dev/rtc1', year);
exec_command_and_wait_for_pattern(self,
'echo slave-24c02 0x1064 > /sys/bus/i2c/devices/i2c-3/new_device',
'i2c i2c-3: new_device: Instantiated device slave-24c02 at 0x64');
exec_command(self, 'i2cset -y 3 0x42 0x64 0x00 0xaa i');
time.sleep(0.1)
exec_command_and_wait_for_pattern(self,
'hexdump /sys/bus/i2c/devices/3-1064/slave-eeprom',
'0000000 ffaa ffff ffff ffff ffff ffff ffff ffff');
self.do_test_arm_aspeed_buildroot_poweroff()