From 9c4f0522a87591bd4930e7d5efcb5b9eb884712b Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Mon, 19 Mar 2007 17:34:37 +0000 Subject: Preliminary ADM5120 support, marked as broken git-svn-id: svn://svn.openwrt.org/openwrt/trunk@6614 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- .../adm5120-2.6/files/arch/mips/adm5120/prom.c | 113 +++++++++++++++++++++ 1 file changed, 113 insertions(+) create mode 100644 target/linux/adm5120-2.6/files/arch/mips/adm5120/prom.c (limited to 'target/linux/adm5120-2.6/files/arch/mips/adm5120/prom.c') diff --git a/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom.c b/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom.c new file mode 100644 index 0000000000..ba8051ea8c --- /dev/null +++ b/target/linux/adm5120-2.6/files/arch/mips/adm5120/prom.c @@ -0,0 +1,113 @@ +/***************************************************************************** + * Carsten Langgaard, carstenl@mips.com + * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. + * Copyright (C) 2003 ADMtek Incorporated. + * daniell@admtek.com.tw + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope 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. + * + *****************************************************************************/ + +#include +#include +#include +#include +#include +#include + +#include +#include + +void setup_prom_printf(int); +void prom_printf(char *, ...); +void prom_meminit(void); + +#define ADM5120_ENVC 1 + +char *adm5120_envp[2*ADM5120_ENVC] = {"memsize","0x001000000"}; + +#define READCSR(r) *(volatile unsigned long *)(0xB2600000+(r)) +#define WRITECSR(r,v) *(volatile unsigned long *)(0xB2600000+(r)) = v + +#define UART_DR_REG 0x00 +#define UART_FR_REG 0x18 +#define UART_TX_FIFO_FULL 0x20 + +int putPromChar(char c) +{ + WRITECSR(UART_DR_REG, c); + while ( (READCSR(UART_FR_REG) & UART_TX_FIFO_FULL) ); + return 0; +} + +/* + * Ugly prom_printf used for debugging + */ + +void prom_printf(char *fmt, ...) +{ + va_list args; + int l; + char *p, *buf_end; + char buf[1024]; + + va_start(args, fmt); + l = vsprintf(buf, fmt, args); /* hopefully i < sizeof(buf) */ + va_end(args); + + buf_end = buf + l; + + for (p = buf; p < buf_end; p++) { + /* Crude cr/nl handling is better than none */ + if (*p == '\n') + putPromChar('\r'); + putPromChar(*p); + } +} + +char *prom_getenv(char *envname) +{ + int i, index=0; + + i = strlen(envname); + + printk(KERN_INFO "GETENV: envname is %s\n", envname); + + while(index < (2*ADM5120_ENVC)) { + if(strncmp(envname, adm5120_envp[index], i) == 0) { + printk(KERN_INFO "GETENV: returning %s\n", adm5120_envp[index+1]); + return(adm5120_envp[index+1]); + } + index += 2; + } + + printk(KERN_INFO "GETENV: not found.\n"); + return(NULL); +} + +/* + * initialize the prom module. + */ +void __init prom_init(void) +{ + /* you should these macros defined in include/asm/bootinfo.h */ + mips_machgroup = MACH_GROUP_ADM_GW; + mips_machtype = MACH_ADM_GW_5120; + + /* init command line, register a default kernel command line */ + strcpy(&(arcs_cmdline[0]), "console=ttyS0,115200 rootfstype=jffs2 init=/etc/preinit"); + + /* init memory map */ + prom_meminit(); +} -- cgit v1.2.3