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-rw-r--r--main/mkinitfs/add-feature-rpirtc.patch44
1 files changed, 44 insertions, 0 deletions
diff --git a/main/mkinitfs/add-feature-rpirtc.patch b/main/mkinitfs/add-feature-rpirtc.patch
new file mode 100644
index 0000000000..b2f0dfd6b6
--- /dev/null
+++ b/main/mkinitfs/add-feature-rpirtc.patch
@@ -0,0 +1,44 @@
+From f87f786cb9f066288d6482aafb32b7e88dc5f4b8 Mon Sep 17 00:00:00 2001
+From: Henrik Riomar <henrik.riomar@gmail.com>
+Date: Tue, 15 Oct 2019 12:59:43 +0200
+Subject: [PATCH] add feature rpirtc
+
+Add new feature rpi rtc allowing a hw rtc to be used.
+
+The init script in Alpine Linux since v3.9 looks for /dev/rtc, if
+not found it will switch to swclock.
+
+To make this check work on a Rasberry PI with a mounted rtc and
+the following in usercfg.txt
+ dtoverlay=i2c-rtc,ds3231
+we must have rtc drivers available already initramfs.
+
+(cherry picked from commit 89f9c4fb0dd3a69dea4cb7ecead55692c9732e06)
+---
+ Makefile | 1 +
+ features.d/rpirtc.modules | 1 +
+ 2 files changed, 2 insertions(+)
+ create mode 100644 features.d/rpirtc.modules
+
+diff --git a/Makefile b/Makefile
+index 3c076a1..b4524a5 100644
+--- a/Makefile
++++ b/Makefile
+@@ -43,6 +43,7 @@ CONF_FILES := mkinitfs.conf \
+ features.d/raid.files \
+ features.d/raid.modules \
+ features.d/reiserfs.modules \
++ features.d/rpirtc.modules \
+ features.d/scsi.modules \
+ features.d/squashfs.modules \
+ features.d/ubifs.modules \
+diff --git a/features.d/rpirtc.modules b/features.d/rpirtc.modules
+new file mode 100644
+index 0000000..91c8ad3
+--- /dev/null
++++ b/features.d/rpirtc.modules
+@@ -0,0 +1 @@
++kernel/drivers/rtc/rtc-ds1307.ko
+--
+2.24.1
+