[exanic] Power up optical PHYs (if present)

Modified-by: Michael Brown <mcb30@ipxe.org> Signed-off-by: Michael Brown <mcb30@ipxe.org>
ipxe · Sep 7, 2017 · f756fd7 · f756fd7
1 parent af02a8d
commit f756fd7
Show file tree

Hide file tree

Showing 2 changed files with 7 additions and 0 deletions.
diff --git a/src/drivers/net/exanic.c b/src/drivers/net/exanic.c
@@ -812,6 +812,9 @@ static int exanic_probe ( struct pci_device *pci ) {
 	/* Read capabilities */
 	exanic->caps = readl ( exanic->regs + EXANIC_CAPS );
 
+	/* Power up PHYs */
+	writel ( EXANIC_POWER_ON, ( exanic->regs + EXANIC_POWER ) );
+
 	/* Fetch base MAC address */
 	if ( ( rc = exanic_fetch_mac ( exanic ) ) != 0 )
 		goto err_fetch_mac;

diff --git a/src/drivers/net/exanic.h b/src/drivers/net/exanic.h
@@ -62,6 +62,10 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
 /** I2C GPIO register */
 #define EXANIC_I2C 0x012c
 
+/** Power control register */
+#define EXANIC_POWER 0x0138
+#define EXANIC_POWER_ON 0x000000f0UL		/**< Power on PHYs */
+
 /** Port register offset */
 #define EXANIC_PORT_REGS( index ) ( 0x0200 + ( 0x40 * (index) ) )