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https://github.com/smaeul/u-boot.git
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113 lines
2.9 KiB
C
113 lines
2.9 KiB
C
/*
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* (C) Copyright 2002
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* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
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* Marius Groeger <mgroeger@sysgo.de>
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*
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* (C) Copyright 2002
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* Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <s3c2400.h>
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DECLARE_GLOBAL_DATA_PTR;
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#ifdef CONFIG_MODEM_SUPPORT
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static int key_pressed(void);
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int mdm_init (bd_t *);
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extern void disable_putc(void);
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extern void enable_putc(void);
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extern int hwflow_onoff(int);
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extern int do_mdm_init; /* defined in common/main.c */
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#endif /* CONFIG_MODEM_SUPPORT */
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/*
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* Miscellaneous platform dependent initialisations
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*/
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int board_init (void)
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{
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S3C24X0_CLOCK_POWER * const clk_power = S3C24X0_GetBase_CLOCK_POWER();
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S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
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/* memory and cpu-speed are setup before relocation */
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/* change the clock to be 50 MHz 1:1:1 */
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clk_power->MPLLCON = 0x5c042;
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clk_power->CLKDIVN = 0;
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/* set up the I/O ports */
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gpio->PACON = 0x3ffff;
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gpio->PBCON = 0xaaaaaaaa;
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gpio->PBUP = 0xffff;
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gpio->PECON = 0x0;
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gpio->PEUP = 0x0;
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#ifdef CONFIG_HWFLOW
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/*CTS[0] RTS[0] INPUT INPUT TXD[0] INPUT RXD[0] */
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/* 10, 10, 00, 00, 10, 00, 10 */
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gpio->PFCON=0xa22;
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/* Disable pull-up on Rx, Tx, CTS and RTS pins */
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gpio->PFUP=0x35;
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#else
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/*INPUT INPUT INPUT INPUT TXD[0] INPUT RXD[0] */
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/* 00, 00, 00, 00, 10, 00, 10 */
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gpio->PFCON = 0x22;
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/* Disable pull-up on Rx and Tx pins */
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gpio->PFUP = 0x5;
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#endif /* CONFIG_HWFLOW */
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gpio->PGCON = 0x0;
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gpio->PGUP = 0x0;
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gpio->OPENCR = 0x0;
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/* arch number of SAMSUNG-Board to MACH_TYPE_SMDK2400 */
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gd->bd->bi_arch_number = MACH_TYPE_SMDK2400;
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/* adress of boot parameters */
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gd->bd->bi_boot_params = 0x0C000100;
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#ifdef CONFIG_MODEM_SUPPORT
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if (key_pressed()) {
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disable_putc(); /* modem doesn't understand banner etc */
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do_mdm_init = 1;
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}
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#endif /* CONFIG_MODEM_SUPPORT */
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return 0;
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}
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int dram_init (void)
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{
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gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
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gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
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return 0;
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}
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#ifdef CONFIG_MODEM_SUPPORT
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static int key_pressed(void)
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{
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int rc;
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if (1) { /* check for button push here, now just return 1 */
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rc = 1;
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}
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return rc;
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}
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#endif /* CONFIG_MODEM_SUPPORT */
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