From bc0373893f147f1f6e3155f04965ca06b9cbff18 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Sat, 29 Sep 2012 08:26:05 +0000
Subject: Fixed bug 3570335.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4724 35acf78f-673a-0410-8e92-d51de3d6d3f4
---
 os/hal/platforms/STM32/mac_lld.c | 4 ++++
 os/hal/platforms/STM32/mac_lld.h | 7 +++++++
 2 files changed, 11 insertions(+)

(limited to 'os')

diff --git a/os/hal/platforms/STM32/mac_lld.c b/os/hal/platforms/STM32/mac_lld.c
index 2a91009c5..eb87d579d 100644
--- a/os/hal/platforms/STM32/mac_lld.c
+++ b/os/hal/platforms/STM32/mac_lld.c
@@ -306,8 +306,10 @@ void mac_lld_start(MACDriver *macp) {
   /* ISR vector enabled.*/
   nvicEnableVector(ETH_IRQn, CORTEX_PRIORITY_MASK(STM32_ETH1_IRQ_PRIORITY));
 
+#if STM32_ETH1_CHANGE_PHY_STATE
   /* PHY in power up mode.*/
   mii_write(macp, MII_BMCR, mii_read(macp, MII_BMCR) & ~BMCR_PDOWN);
+#endif
 
   /* MAC configuration.*/
   ETH->MACFFR    = 0;
@@ -361,8 +363,10 @@ void mac_lld_start(MACDriver *macp) {
 void mac_lld_stop(MACDriver *macp) {
 
   if (macp->state != MAC_STOP) {
+#if STM32_ETH1_CHANGE_PHY_STATE
     /* PHY in power down mode until the driver will be restarted.*/
     mii_write(macp, MII_BMCR, mii_read(macp, MII_BMCR) | BMCR_PDOWN);
+#endif
 
     /* MAC and DMA stopped.*/
     ETH->MACCR    = 0;
diff --git a/os/hal/platforms/STM32/mac_lld.h b/os/hal/platforms/STM32/mac_lld.h
index 32ef3ba79..9709bcdb7 100644
--- a/os/hal/platforms/STM32/mac_lld.h
+++ b/os/hal/platforms/STM32/mac_lld.h
@@ -154,6 +154,13 @@
 #define STM32_MAC_PHY_TIMEOUT       100
 #endif
 
+/**
+ * @brief   Change the PHY power state inside the driver.
+ */
+#if !defined(STM32_ETH1_CHANGE_PHY_STATE) || defined(__DOXYGEN__)
+#define STM32_ETH1_CHANGE_PHY_STATE TRUE
+#endif
+
 /**
  * @brief   ETHD1 interrupt priority level setting.
  */
-- 
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