diff options
Diffstat (limited to 'target/linux/amazon/files/arch/mips/amazon/prom.c')
-rw-r--r-- | target/linux/amazon/files/arch/mips/amazon/prom.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/target/linux/amazon/files/arch/mips/amazon/prom.c b/target/linux/amazon/files/arch/mips/amazon/prom.c new file mode 100644 index 0000000000..2947473ad0 --- /dev/null +++ b/target/linux/amazon/files/arch/mips/amazon/prom.c @@ -0,0 +1,77 @@ +/* + * 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. + * + * Copyright 2007 John Crispin <blogic@openwrt.org> + */ + +#include <linux/init.h> +#include <linux/string.h> +#include <linux/ctype.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/bootmem.h> +#include <linux/ioport.h> +#include <asm/bootinfo.h> +#include <asm/amazon/amazon.h> +#include <asm/amazon/irq.h> +#include <asm/amazon/model.h> +#include <asm/cpu.h> + +void prom_putchar(char c) +{ + /* Wait for FIFO to empty */ + while ((amazon_readl(AMAZON_ASC_FSTAT) >> 8) != 0x00) ; + /* Crude cr/nl handling is better than none */ + if(c == '\n') + amazon_writel('\r', AMAZON_ASC_TBUF); + amazon_writel(c, AMAZON_ASC_TBUF); +} + +void prom_printf(const char * fmt, ...) +{ + va_list args; + int l; + char *p, *buf_end; + char buf[1024]; + + va_start(args, fmt); + /* FIXME - hopefully i < sizeof(buf) */ + l = vsprintf(buf, fmt, args); + va_end(args); + buf_end = buf + l; + + for (p = buf; p < buf_end; p++) + prom_putchar(*p); +} + + +void __init prom_init(void) +{ + mips_machgroup = MACH_GROUP_INFINEON; + mips_machtype = MACH_INFINEON_AMAZON; + + strcpy(&(arcs_cmdline[0]), "console=ttyS0,115200 rootfstype=squashfs,jffs2 init=/etc/preinit"); + + add_memory_region(0x00000000, 0x1000000, BOOT_MEM_RAM); +} + +void prom_free_prom_memory(void) +{ +} + +const char *get_system_type(void) +{ + return BOARD_SYSTEM_TYPE; +} |