2 * arch/mips/ifxmips/prom.c
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
18 * Copyright (C) 2005 Wu Qi Ming infineon
20 * Rewrite of Infineon IFXMips code, thanks to infineon for the support,
21 * software and hardware
23 * Copyright (C) 2007 John Crispin <blogic@openwrt.org>
27 #include <linux/init.h>
28 #include <linux/bootmem.h>
29 #include <asm/bootinfo.h>
30 #include <asm/ifxmips/ifxmips.h>
32 #ifdef CONFIG_IFXMIPS_USE_CONSOLE0
34 #elif CONFIG_IFXMIPS_USE_CONSOLE1
35 #define ASC_OFFSET IFXMIPS_ASC1_BASE_OFFSET
37 #error a tty for the console must be selected
39 static char buf[1024];
42 prom_free_prom_memory (void)
49 while ((readl(IFXMIPS_ASC0_FSTAT + ASC_OFFSET) & ASCFSTAT_TXFFLMASK) >> ASCFSTAT_TXFFLOFF);
52 writel('\r', IFXMIPS_ASC0_TBUF + ASC_OFFSET);
53 writel(c, IFXMIPS_ASC0_TBUF + ASC_OFFSET);
57 prom_printf (const char * fmt, ...)
64 l = vsprintf(buf, fmt, args);
68 for (p = buf; p < buf_end; p++)
77 mips_machgroup = MACH_GROUP_IFXMIPS;
78 mips_machtype = MACH_INFINEON_IFXMIPS;
80 strcpy(&(arcs_cmdline[0]), "console=ttyS0,115200 rootfstype=squashfs,jffs2 init=/etc/preinit");
81 add_memory_region (0x00000000, 0x2000000, BOOT_MEM_RAM);