Fixed bug #1218.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@15553 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;

os/hal/ports/STM32/LLD/MACv2/hal_mac_lld.c

@@ -411,6 +411,11 @@ void mac_lld_start(MACDriver *macp) {
   ETH->MACCR |=                 ETH_MACCR_RE | ETH_MACCR_TE;
 #endif
 
+  /* MMC configuration:
+     Disable all interrupts.*/
+  ETH->MMCTIMR = (1<<27) | (1<<26) | (1<<21) | (1<<15) | (1<<14);
+  ETH->MMCRIMR = (1<<27) | (1<<26) | (1<<17) | (1<<6)  | (1<<5);
+
   /* DMA general settings.*/
   ETH->DMASBMR   = ETH_DMASBMR_AAL;
   ETH->DMACCR = ETH_DMACCR_DSL_0BIT;

readme.txt

@@ -151,6 +151,8 @@
        (backported to 20.3.5)(backported to 21.11.2).
 - FIX: Fixed wrong condition in STM32 sio_lld_read() function (bug #1219)
        (backported to 20.3.5)(backported to 21.11.2).
+- FIX: Fixed STM32 Ethernet driver causes system hang after 2^31 packets
+       sent/received (bug #1218)(backported to 20.3.5)(backported to 21.11.2).
 - FIX: Fixed clock re-initialization problem in STM32 USARTv2 and USARTv3
        drivers (bug #1217)(backported to 21.11.2).
 - FIX: Fixed assertion on initialization of STM32H7xx (bug #1216)