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-rw-r--r--README6
-rw-r--r--drivers/net/davinci_emac.c24
2 files changed, 22 insertions, 8 deletions
diff --git a/README b/README
index 73ca042f68..07f1d11e5f 100644
--- a/README
+++ b/README
@@ -1027,6 +1027,12 @@ The following options need to be configured:
Define this to use i/o functions instead of macros
(some hardware wont work with macros)
+ CONFIG_DRIVER_TI_EMAC
+ Support for davinci emac
+
+ CONFIG_SYS_DAVINCI_EMAC_PHY_COUNT
+ Define this if you have more then 3 PHYs.
+
CONFIG_FTGMAC100
Support for Faraday's FTGMAC100 Gigabit SoC Ethernet
diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
index fa31159a0e..36c33af662 100644
--- a/drivers/net/davinci_emac.c
+++ b/drivers/net/davinci_emac.c
@@ -85,15 +85,17 @@ static int emac_rx_queue_active = 0;
/* Receive packet buffers */
static unsigned char emac_rx_buffers[EMAC_MAX_RX_BUFFERS * (EMAC_MAX_ETHERNET_PKT_SIZE + EMAC_PKT_ALIGN)];
-#define MAX_PHY 3
+#ifndef CONFIG_SYS_DAVINCI_EMAC_PHY_COUNT
+#define CONFIG_SYS_DAVINCI_EMAC_PHY_COUNT 3
+#endif
/* PHY address for a discovered PHY (0xff - not found) */
-static u_int8_t active_phy_addr[MAX_PHY] = { 0xff, 0xff, 0xff };
+static u_int8_t active_phy_addr[CONFIG_SYS_DAVINCI_EMAC_PHY_COUNT];
/* number of PHY found active */
static u_int8_t num_phy;
-phy_t phy[MAX_PHY];
+phy_t phy[CONFIG_SYS_DAVINCI_EMAC_PHY_COUNT];
static int davinci_eth_set_mac_addr(struct eth_device *dev)
{
@@ -160,9 +162,8 @@ static int davinci_eth_phy_detect(void)
int j;
unsigned int count = 0;
- active_phy_addr[0] = 0xff;
- active_phy_addr[1] = 0xff;
- active_phy_addr[2] = 0xff;
+ for (i = 0; i < CONFIG_SYS_DAVINCI_EMAC_PHY_COUNT; i++)
+ active_phy_addr[i] = 0xff;
udelay(1000);
phy_act_state = readl(&adap_mdio->ALIVE);
@@ -175,7 +176,14 @@ static int davinci_eth_phy_detect(void)
for (i = 0, j = 0; i < 32; i++)
if (phy_act_state & (1 << i)) {
count++;
- active_phy_addr[j++] = i;
+ if (count < CONFIG_SYS_DAVINCI_EMAC_PHY_COUNT) {
+ active_phy_addr[j++] = i;
+ } else {
+ printf("%s: to many PHYs detected.\n",
+ __func__);
+ count = 0;
+ break;
+ }
}
num_phy = count;
@@ -752,7 +760,7 @@ int davinci_emac_initialize(void)
if (!ret)
return(0);
else
- printf(" %d ETH PHY detected\n", ret);
+ debug_emac(" %d ETH PHY detected\n", ret);
/* Get PHY ID and initialize phy_ops for a detected PHY */
for (i = 0; i < num_phy; i++) {