/* * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published * by the Free Software Foundation. * * Copyright (C) 2010 John Crispin <john@phrozen.org> */ #include <linux/cpu.h> #include <lantiq_soc.h> #include <asm/setup.h> #define ASC_BUF 1024 #define LTQ_ASC_FSTAT ((u32 *)(LTQ_EARLY_ASC + 0x0048)) #ifdef __BIG_ENDIAN #define LTQ_ASC_TBUF ((u32 *)(LTQ_EARLY_ASC + 0x0020 + 3)) #else #define LTQ_ASC_TBUF ((u32 *)(LTQ_EARLY_ASC + 0x0020)) #endif #define TXMASK 0x3F00 #define TXOFFSET 8 void prom_putchar(char c) { unsigned long flags; local_irq_save(flags); do { } while ((ltq_r32(LTQ_ASC_FSTAT) & TXMASK) >> TXOFFSET); if (c == '\n') ltq_w8('\r', LTQ_ASC_TBUF); ltq_w8(c, LTQ_ASC_TBUF); local_irq_restore(flags); }