Initial revision

2002-09-14 19:10:04 +00:00 · 2002-09-14 19:10:04 +00:00 · d8a555f2bb
parent 7133d4c4f1
commit d8a555f2bb
1 changed files with 113 additions and 0 deletions
--- a/board/smdk2400/smdk2400.c
+++ b/board/smdk2400/smdk2400.c
@ -0,0 +1,113 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
+ *
+ * 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
+ */
+
+#include <common.h>
+#include <s3c2400.h>
+
+/* ------------------------------------------------------------------------- */
+
+#ifdef CONFIG_MODEM_SUPPORT
+static int key_pressed(void);
+int mdm_init (bd_t *);
+extern void disable_putc(void);
+extern void enable_putc(void);
+extern int hwflow_onoff(int);
+extern int do_mdm_init; /* defined in common/main.c */
+#endif /* CONFIG_MODEM_SUPPORT */
+
+/*
+ * Miscellaneous platform dependent initialisations
+ */
+
+int board_init (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	/* memory and cpu-speed are setup before relocation */
+	/* change the clock to be 50 MHz 1:1:1 */
+	rMPLLCON = 0x5c042;
+	rCLKDIVN = 0;
+	/* set up the I/O ports */
+	rPACON = 0x3ffff;
+	rPBCON = 0xaaaaaaaa;
+	rPBUP = 0xffff;
+	rPECON = 0x0;
+	rPEUP = 0x0;
+#ifdef CONFIG_HWFLOW
+	/*CTS[0] RTS[0] INPUT INPUT TXD[0] INPUT RXD[0] */
+	/*   10,   10,   00,   00,    10,   00,    10 */
+	rPFCON=0xa22;
+	/* Disable pull-up on Rx, Tx, CTS and RTS pins */
+	rPFUP=0x35;
+#else
+	/*INPUT INPUT INPUT INPUT TXD[0] INPUT RXD[0] */
+	/*   00,   00,   00,   00,    10,   00,    10 */
+	rPFCON = 0x22;
+	/* Disable pull-up on Rx and Tx pins */
+	rPFUP = 0x5;
+#endif	/* CONFIG_HWFLOW */
+	rPGCON = 0x0;
+	rPGUP = 0x0;
+	rOPENCR = 0x0;
+
+	/* arch number of SAMSUNG-Board to MACH_TYPE_SMDK2400 */
+	gd->bd->bi_arch_number = 145;
+
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = 0x0C000100;
+
+#ifdef CONFIG_MODEM_SUPPORT
+	if (key_pressed()) {
+		disable_putc();	/* modem doesn't understand banner etc */
+		do_mdm_init = 1;
+	}
+#endif	/* CONFIG_MODEM_SUPPORT */
+
+	return 0;
+}
+
+int dram_init (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+	gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
+
+	return 0;
+}
+
+#ifdef CONFIG_MODEM_SUPPORT
+static int key_pressed(void)
+{
+	int rc;
+	if (1) {	/* check for button push here, now just return 1 */
+		rc = 1;
+	}
+
+	return rc;
+}
+#endif	/* CONFIG_MODEM_SUPPORT */