switch: improve robo_switch_enable()

This is based on a patch by jcharest and the Broadcom SDK.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@35583 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/switch/src/switch-robo.c b/package/switch/src/switch-robo.c
index 0e39c8f..41f0c18 100644 (file)
--- a/package/switch/src/switch-robo.c
+++ b/package/switch/src/switch-robo.c
@@ -237,10 +237,14 @@ static int robo_switch_enable(void)
                        return -EBUSY;
                }
 
+               /* No spanning tree for unmanaged mode */
                last_port = (robo.devid == ROBO_DEVICE_ID_5398) ?
-                               ROBO_PORT6_CTRL : ROBO_PORT3_CTRL;
-               for (i = ROBO_PORT0_CTRL; i < last_port + 1; i++)
+                               ROBO_PORT7_CTRL : ROBO_PORT4_CTRL;
+               for (i = ROBO_PORT0_CTRL; i <= last_port; i++)
                        robo_write16(ROBO_CTRL_PAGE, i, 0);
+
+               /* No spanning tree on IMP port too */
+               robo_write16(ROBO_CTRL_PAGE, ROBO_IM_PORT_CTRL, 0);
        }
 
 #ifdef CONFIG_BCM47XX