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authorwdenk <wdenk>2005-04-20 12:36:05 +0000
committerwdenk <wdenk>2005-04-20 12:36:05 +0000
commitec0ca73190450d8d063c102fc652a0bdbc78aac2 (patch)
tree5f518c424f6ed88d7d429079faa2f16a990e3f2f
parentb2323ea6f9ae478680baa964bdd97d8567507e91 (diff)
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Cleanup serial console baudrate calculation on AT91RM9200
-rw-r--r--CHANGELOG2
-rw-r--r--board/canmb/mt48lc16m32s2-75.h43
-rw-r--r--cpu/arm920t/at91rm9200/serial.c7
3 files changed, 47 insertions, 5 deletions
diff --git a/CHANGELOG b/CHANGELOG
index ba5e3dd..eb59770 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 0000000..ffdf039
--- /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 a9693bf..b529cfa 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)