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a5adea5c2a
This patch cleans up the include directory, as they were from vendors 2.4 GPL source. Now only what's used is there. Signed-off-by: Scott Nicholas <scott.nicholas@scottn.us> SVN-Revision: 25175
138 lines
3.1 KiB
C
138 lines
3.1 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@openwrt.org>
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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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#ifdef CONFIG_SERIAL_ADM8668_CONSOLE
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static inline unsigned int adm_uart_readl(unsigned int offset)
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{
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return (*(volatile unsigned int *)(0xbe400000 + offset));
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}
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static inline void adm_uart_writel(unsigned int value, unsigned int offset)
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{
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(*((volatile unsigned int *)(0xbe400000 + offset))) = value;
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}
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static void prom_putchar(char c)
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{
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adm_uart_writel(c, UART_DR_REG);
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while ((adm_uart_readl(UART_FR_REG) & UART_TX_FIFO_FULL) != 0)
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;
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}
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static void __init
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early_console_write(struct console *con, const char *s, unsigned n)
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{
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while (n-- && *s) {
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if (*s == '\n')
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prom_putchar('\r');
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prom_putchar(*s);
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s++;
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}
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}
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static struct console early_console __initdata = {
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.name = "early",
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.write = early_console_write,
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.flags = CON_BOOT,
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.index = -1
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};
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#endif
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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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#ifdef CONFIG_SERIAL_ADM8668_CONSOLE
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register_console(&early_console);
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#endif
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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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