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96 lines
2.2 KiB
C
96 lines
2.2 KiB
C
/*
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* Copyright (C) 2010 Scott Nicholas <neutronscott@scottn.us>
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*
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* based on work of rb532 prom.c
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* Copyright (C) 2003, Peter Sadik <peter.sadik@idt.com>
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* Copyright (C) 2005-2006, P.Christeas <p_christ@hol.gr>
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* Copyright (C) 2007, Gabor Juhos <juhosg@openwrt.org>
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* Felix Fietkau <nbd@nbd.name>
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* Florian Fainelli <florian@openwrt.org>
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/console.h>
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#include <linux/string.h>
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#include <linux/serial_core.h>
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#include <asm/bootinfo.h>
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#include <adm8668.h>
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#include "u-boot.h"
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register volatile struct global_data *gd asm ("k0");
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void __init prom_free_prom_memory(void)
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{
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/* No prom memory to free */
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}
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static inline int match_tag(char *arg, const char *tag)
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{
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return strncmp(arg, tag, strlen(tag)) == 0;
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}
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static inline unsigned long tag2ul(char *arg, const char *tag)
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{
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char *num;
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num = arg + strlen(tag);
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return simple_strtoul(num, 0, 10);
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}
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void __init prom_setup_cmdline(void)
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{
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char *cp;
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int prom_argc;
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char **prom_argv;
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int i;
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prom_argc = fw_arg0;
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prom_argv = (char **)KSEG0ADDR(fw_arg1);
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cp = &(arcs_cmdline[0]);
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for (i = 1; i < prom_argc; i++) {
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prom_argv[i] = (char *)KSEG0ADDR(prom_argv[i]);
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/* default bootargs has "console=/dev/ttyS0" yet console won't
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* show up at all if you include the '/dev/' nowadays ... */
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if (match_tag(prom_argv[i], "console=/dev/")) {
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char *ptr = prom_argv[i] + strlen("console=/dev/");
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strcpy(cp, "console=");
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cp += strlen("console=");
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strcpy(cp, ptr);
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cp += strlen(ptr);
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*cp++ = ' ';
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continue;
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}
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strcpy(cp, prom_argv[i]);
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cp += strlen(prom_argv[i]);
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*cp++ = ' ';
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}
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if (prom_argc > 1)
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--cp; /* trailing space */
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*cp = '\0';
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}
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void __init prom_init(void)
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{
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bd_t *bd = gd->bd;
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int memsize;
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memsize = bd->bi_memsize;
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printk("Board info:\n");
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printk(" RAM size: %d MB\n", (int)memsize/(1024*1024));
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printk(" NOR start: %#lx\n", bd->bi_flashstart);
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printk(" NOR size: %#lx\n", bd->bi_flashsize);
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prom_setup_cmdline();
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add_memory_region(0, memsize, BOOT_MEM_RAM);
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}
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