Added writing DDR.bin to DDR partition during flo OTA
[Issue 9734870] Some devices are unstable with Elpida DDR RAM
The DDR.bin in fact are all zeros, it's meant to erase partition
DDR during each OTA update for DDR memory retraining.
Change-Id: Id23bf14344a33c437cbaf77f4fb35bf9e3663b98
diff --git a/releasetools.py b/releasetools.py
index ffb1baf..6f485c1 100644
--- a/releasetools.py
+++ b/releasetools.py
@@ -22,6 +22,12 @@
else:
print "no radio.img in target_files; skipping install"
+ DDR_img = FindDDR(info.input_zip)
+ if DDR_img:
+ WriteDDR(info, DDR_img)
+ else:
+ print "no DDR.bin in target_files; skipping install"
+
def IncrementalOTA_VerifyEnd(info):
target_radio_img = FindRadio(info.target_zip)
@@ -51,6 +57,13 @@
except KeyError:
print "no bootloader.img in target target_files; skipping install"
+ df = FindDDR(info.target_zip)
+ if not df:
+ print "no DDR.bin in target target_files; skipping install"
+ else:
+ df = common.File("DDR.bin", df)
+ WriteDDR(info, df.data)
+
tf = FindRadio(info.target_zip)
if not tf:
# failed to read TARGET radio image: don't include any radio in update.
@@ -94,6 +107,18 @@
info.script.AppendExtra(
'package_extract_file("radio.img", "%s");' % (device,))
+def FindDDR(zipfile):
+ try:
+ return zipfile.read("RADIO/DDR.bin")
+ except KeyError:
+ return None
+
+
+def WriteDDR(info, DDR_img):
+ info.script.Print("Writing DDR...")
+ common.ZipWriteStr(info.output_zip, "DDR.bin", DDR_img)
+ info.script.AppendExtra(
+ 'package_extract_file("DDR.bin", "/dev/block/platform/msm_sdcc.1/by-name/DDR");' )
# /* msm8960 bootloader.img format */
#
