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Cleanup serial console baudrate calculation on AT91RM9200

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This commit is contained in:
wdenk 2005-04-20 12:36:05 +00:00
parent b2323ea6f9
commit ec0ca73190
3 changed files with 47 additions and 5 deletions
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2
CHANGELOG
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@ -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

43
board/canmb/mt48lc16m32s2-75.h Normal file
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@ -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

7
cpu/arm920t/at91rm9200/serial.c
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@ -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)