Fixed bug #1218.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/stable_20.3.x@15555 27425a3e-05d8-49a3-a47f-9c15f0e5edd8

os/hal/ports/STM32/LLD/MACv1/hal_mac_lld.c

@@ -352,6 +352,11 @@ void mac_lld_start(MACDriver *macp) {
   ETH->MACCR =                  ETH_MACCR_RE | ETH_MACCR_TE;
 #endif
 
+  /* MMC configuration:
+     Disable all MMC interrupts.*/
+  ETH->MMCRIMR = ETH_MMCRIMR_RFCEM  | ETH_MMCRIMR_RFAEM   | ETH_MMCRIMR_RGUFM;
+  ETH->MMCTIMR = ETH_MMCTIMR_TGFSCM | ETH_MMCTIMR_TGFMSCM | ETH_MMCTIMR_TGFM;
+
   /* DMA configuration:
      Descriptor chains pointers.*/
   ETH->DMARDLAR = (uint32_t)__eth_rd;

readme.txt

@@ -86,6 +86,8 @@
 - FIX: Fixed GPIOH clock not enabled on STM32L432 (bug #1223).
 - FIX: Fixed incorrect type cast in TIME_I2US() (bug #1221).
 - FIX: Fixed missing clock disable for STM32 OCTOSPI2 (bug #1220).
+- FIX: Fixed STM32 Ethernet driver causes system hang after 2^31 packets
+       sent/received (bug #1218).
 - FIX: Fixed Virtual Timers failure in a specific condition (bug #1215).
 - FIX: Fixed invalid state transition in SNOR flash driver (bug #1212).
 - FIX: Fixed missing check in chobjcaches.h (bug #1210).