From 3a227eb67a3596ea2ebef8cc1e5a7f302eb0303d Mon Sep 17 00:00:00 2001 From: Jostar Yang Date: Thu, 27 Jun 2019 16:23:58 +0800 Subject: [PATCH] Fix IR3570A issue that cause read eeprom problem --- .../x86_64_accton_as9716_32d_r0/__init__.py | 28 +++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/packages/platforms/accton/x86-64/x86-64-accton-as9716_32d/platform-config/r0/src/python/x86_64_accton_as9716_32d_r0/__init__.py b/packages/platforms/accton/x86-64/x86-64-accton-as9716_32d/platform-config/r0/src/python/x86_64_accton_as9716_32d_r0/__init__.py index cd8a2526..2248cc99 100755 --- a/packages/platforms/accton/x86-64/x86-64-accton-as9716_32d/platform-config/r0/src/python/x86_64_accton_as9716_32d_r0/__init__.py +++ b/packages/platforms/accton/x86-64/x86-64-accton-as9716_32d/platform-config/r0/src/python/x86_64_accton_as9716_32d_r0/__init__.py @@ -1,6 +1,33 @@ from onl.platform.base import * from onl.platform.accton import * +import commands + +#IR3570A chip casue problem when read eeprom by i2c-block mode. +#It happen when read 16th-byte offset that value is 0x8. So disable chip +def disable_i2c_ir3570a(addr): + cmd = "i2cset -y 0 0x%x 0xE5 0x01" % addr + status, output = commands.getstatusoutput(cmd) + cmd = "i2cset -y 0 0x%x 0x12 0x02" % addr + status, output = commands.getstatusoutput(cmd) + return status + +def ir3570_check(): + cmd = "i2cdump -y 0 0x42 s 0x9a" + try: + status, output = commands.getstatusoutput(cmd) + lines = output.split('\n') + hn = re.findall(r'\w+', lines[-1]) + version = int(hn[1], 16) + if version == 0x24: #Find IR3570A + ret = disable_i2c_ir3570a(4) + else: + ret = 0 + except Exception as e: + print "Error on ir3570_check() e:" + str(e) + return -1 + return ret + class OnlPlatform_x86_64_accton_as9716_32d_r0(OnlPlatformAccton, OnlPlatformPortConfig_48x25_6x100): @@ -73,5 +100,6 @@ class OnlPlatform_x86_64_accton_as9716_32d_r0(OnlPlatformAccton, self.new_i2c_device('optoe1', 0x50, port+24) subprocess.call('echo port%d > /sys/bus/i2c/devices/%d-0050/port_name' % (port, port+24), shell=True) + ir3570_check() return True