From: morris <maoshengrong@espressif.com>
Date: Tue, 4 Dec 2018 09:13:48 +0000 (+0800)
Subject: ethernet: phy init timeout
X-Git-Tag: v3.3-beta1~18^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=dc043109d76ea72ef4d588a64b11e18dfcb8d9d3;p=esp-idf

ethernet: phy init timeout

When ethernet enable again after disable it before, phy init will report timeout.
The cause of this problem is that the enabling of emac clock is too late, and should be placed before phy init.
---

diff --git a/components/ethernet/emac_main.c b/components/ethernet/emac_main.c
index b70682b561..6ddcdc7127 100644
--- a/components/ethernet/emac_main.c
+++ b/components/ethernet/emac_main.c
@@ -809,7 +809,6 @@ static void emac_start(void *param)
 
     ESP_LOGD(TAG, "emac start");
     cmd->err = EMAC_CMD_OK;
-    emac_enable_clk(true);
 
     if (emac_reset() != ESP_OK) {
         return;
@@ -870,6 +869,7 @@ esp_err_t esp_eth_enable(void)
     esp_pm_lock_acquire(s_pm_lock);
 #endif //CONFIG_PM_ENABLE
 
+    emac_enable_clk(true);
     /* init phy device */
     if (emac_config.phy_init() != ESP_OK) {
         ESP_LOGE(TAG, "Initialise PHY device Timeout");