From 02b11f8e096fde3fc891190c413014a63cdc37b3 Mon Sep 17 00:00:00 2001
From: wdenk <wdenk>
Date: Wed, 12 May 2004 22:54:36 +0000
Subject: Patch by Klaus Heydeck, 12 May 2004: Using external watchdog for KUP4
 boards in mpc8xx/cpu.c; load_sernum_ethaddr() for KUP4 boards in
 lib_ppc/board.c; various changes to KUP4 board specific files

---
 cpu/mpc8xx/cpu.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'cpu/mpc8xx/cpu.c')

diff --git a/cpu/mpc8xx/cpu.c b/cpu/mpc8xx/cpu.c
index 81d2047c9c..d23d7eeefa 100644
--- a/cpu/mpc8xx/cpu.c
+++ b/cpu/mpc8xx/cpu.c
@@ -567,6 +567,17 @@ void reset_8xx_watchdog (volatile immap_t * immr)
 	immr->im_ioport.iop_padir |= WATCHDOG_BIT;	/* Output   */
 	immr->im_ioport.iop_paodr &= ~(WATCHDOG_BIT);	/* active output */
 
+	immr->im_ioport.iop_padat ^= WATCHDOG_BIT;	/* Toggle WDI   */
+# elif defined(CONFIG_KUP4K) || defined(CONFIG_KUP4X)
+	/*
+	 * The KUP4 boards uses a TPS3705 Watchdog
+	 * with the trigger pin connected to port PA.5
+	 */
+# define WATCHDOG_BIT	0x0400
+	immr->im_ioport.iop_papar &= ~(WATCHDOG_BIT);	/* GPIO     */
+	immr->im_ioport.iop_padir |= WATCHDOG_BIT;	/* Output   */
+	immr->im_ioport.iop_paodr &= ~(WATCHDOG_BIT);	/* active output */
+
 	immr->im_ioport.iop_padat ^= WATCHDOG_BIT;	/* Toggle WDI   */
 # else
 	/*
-- 
cgit