configs/turris1x/kernel: Allow RTC NVMEM access

In Linux 4.13, a new kernel option was introduced to allow userspace access to RTC NVMEM. This option is off by default, making the NVMEM inaccessable. Since there is at least one application utilizing it, this patch adds `/sys/class/rtc/rtc0/device/nvram` back. Signed-off-by: Ondřej Caletka <ondrej@caletka.cz> (cherry-picked from commit e09c946d)

configs/turris1x/kernel: Allow RTC NVMEM access
In Linux 4.13, a new kernel option was introduced to allow userspace access to RTC NVMEM. This option is off by default, making the NVMEM inaccessable. Since there is at least one application utilizing it, this patch adds `/sys/class/rtc/rtc0/device/nvram` back. Signed-off-by: Ondřej Caletka <ondrej@caletka.cz> (cherry-picked from commit e09c946d)
66645fe5 · Ondřej Caletka · Josef Schlehofer · ccc37cd0 · 66645fe5
Verified Commit 66645fe5 authored 5 years ago by Ondřej Caletka Committed by Josef Schlehofer 5 years ago
--- a/configs/turris1x/kernel
+++ b/configs/turris1x/kernel
@@ -11,3 +11,7 @@ CONFIG_KERNEL_NET_DSA=y
 CONFIG_KERNEL_NET_DSA_QCA8K=y
 # For rainbow
 CONFIG_KERNEL_DEVMEM=y
+
+# Allow RTC NVMEM access
+CONFIG_KERNEL_RTC_NVMEM=y
+CONFIG_KERNEL_NVMEM_SYSFS=y