From ec0ca73190450d8d063c102fc652a0bdbc78aac2 Mon Sep 17 00:00:00 2001
From: wdenk <wdenk>
Date: Wed, 20 Apr 2005 12:36:05 +0000
Subject: [PATCH] Cleanup serial console baudrate calculation on AT91RM9200

---
 CHANGELOG                       |  2 ++
 board/canmb/mt48lc16m32s2-75.h  | 43 +++++++++++++++++++++++++++++++++
 cpu/arm920t/at91rm9200/serial.c |  7 ++----
 3 files changed, 47 insertions(+), 5 deletions(-)
 create mode 100644 board/canmb/mt48lc16m32s2-75.h

diff --git a/CHANGELOG b/CHANGELOG
index ba5e3dd14e..eb597704b0 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,8 @@
 Changes for U-Boot 1.1.3:
 ======================================================================
 
+* Cleanup serial console baudrate calculation on AT91RM9200
+
 * Patch by Matthias Fuchs, 18 Apr 2005:
   Make PCI target address spaces on PMC405 and CPCI405 boards
   configurable via environment variables
diff --git a/board/canmb/mt48lc16m32s2-75.h b/board/canmb/mt48lc16m32s2-75.h
new file mode 100644
index 0000000000..ffdf0396a5
--- /dev/null
+++ b/board/canmb/mt48lc16m32s2-75.h
@@ -0,0 +1,43 @@
+/*
+ * (C) Copyright 2004
+ * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#define SDRAM_DDR	0		/* is SDR */
+
+#if defined(CONFIG_MPC5200)
+/* Settings for XLB = 132 MHz */
+#define SDRAM_MODE	0x00CD0000
+#define SDRAM_CONTROL	0x504F0000
+#define SDRAM_CONFIG1	0xD2322800
+#define SDRAM_CONFIG2	0x8AD70000
+
+#elif defined(CONFIG_MGT5100)
+/* Settings for XLB = 66 MHz */
+#define SDRAM_MODE	0x008D0000
+#define SDRAM_CONTROL	0x504F0000
+#define SDRAM_CONFIG1	0xC2222600
+#define SDRAM_CONFIG2	0x88B70004
+#define SDRAM_ADDRSEL	0x02000000
+
+#else
+#error Neither CONFIG_MPC5200 or CONFIG_MGT5100 defined
+#endif
diff --git a/cpu/arm920t/at91rm9200/serial.c b/cpu/arm920t/at91rm9200/serial.c
index a9693bf44e..b529cfa41b 100644
--- a/cpu/arm920t/at91rm9200/serial.c
+++ b/cpu/arm920t/at91rm9200/serial.c
@@ -55,11 +55,8 @@ void serial_setbrg (void)
 
 	if ((baudrate = gd->baudrate) <= 0)
 		baudrate = CONFIG_BAUDRATE;
-	if (baudrate == 0 || baudrate == CONFIG_BAUDRATE)
-		us->US_BRGR = CFG_AT91C_BRGR_DIVISOR;	/* hardcode so no __divsi3 */
-	else
-		/* MASTER_CLOCK/(16 * baudrate) */
-		us->US_BRGR = (AT91C_MASTER_CLOCK >> 4)/baudrate;
+	/* MASTER_CLOCK/(16 * baudrate) */
+	us->US_BRGR = (AT91C_MASTER_CLOCK >> 4)/baudrate;
 }
 
 int serial_init (void)
-- 
2.39.5