From c6e429bdd6f0142558896e29c21a526c1ffdd1f3 Mon Sep 17 00:00:00 2001
From: Lennert Buytenhek <buytenh@wantstofly.org>
Date: Wed, 23 Nov 2005 12:49:55 +0100
Subject: [PATCH] [PATCH] pm3386: implement reset
Implement pm3386 reset. A reset zeroes out the internally stored MAC
addresses, so we need to save and reload them by hand.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---
drivers/net/ixp2000/pm3386.c | 32 +++++++++++++++++++++++++++++++-
1 file changed, 31 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ixp2000/pm3386.c b/drivers/net/ixp2000/pm3386.c
index ec70b1d553e3..5c7ab7564053 100644
--- a/drivers/net/ixp2000/pm3386.c
+++ b/drivers/net/ixp2000/pm3386.c
@@ -89,7 +89,37 @@ static void pm3386_port_reg_write(int port, int _reg, int spacing, u16 value)
void pm3386_reset(void)
{
- /* @@@ Implement me. */
+ u8 mac[3][6];
+
+ /* Save programmed MAC addresses. */
+ pm3386_get_mac(0, mac[0]);
+ pm3386_get_mac(1, mac[1]);
+ pm3386_get_mac(2, mac[2]);
+
+ /* Assert analog and digital reset. */
+ pm3386_reg_write(0, 0x002, 0x0060);
+ pm3386_reg_write(1, 0x002, 0x0060);
+ mdelay(1);
+
+ /* Deassert analog reset. */
+ pm3386_reg_write(0, 0x002, 0x0062);
+ pm3386_reg_write(1, 0x002, 0x0062);
+ mdelay(10);
+
+ /* Deassert digital reset. */
+ pm3386_reg_write(0, 0x002, 0x0063);
+ pm3386_reg_write(1, 0x002, 0x0063);
+ mdelay(10);
+
+ /* Restore programmed MAC addresses. */
+ pm3386_set_mac(0, mac[0]);
+ pm3386_set_mac(1, mac[1]);
+ pm3386_set_mac(2, mac[2]);
+
+ /* Disable carrier on all ports. */
+ pm3386_set_carrier(0, 0);
+ pm3386_set_carrier(1, 0);
+ pm3386_set_carrier(2, 0);
}
static u16 swaph(u16 x)
--
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