remove old mips support
This commit is contained in:
Sascha Hauer
parent
23e7f1d2d6
commit
a3eccf0429
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@ -1,45 +0,0 @@
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#
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# (C) Copyright 2003-2006
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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#
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# See file CREDITS for list of people who contributed to this
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# project.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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# MA 02111-1307 USA
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#
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include $(TOPDIR)/config.mk
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LIB = $(obj)lib$(ARCH).a
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SOBJS =
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COBJS = board.o time.o mips_linux.o
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SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
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OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
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$(LIB): $(obj).depend $(OBJS)
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$(AR) $(ARFLAGS) $@ $(OBJS)
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#########################################################################
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# defines $(obj).depend target
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include $(SRCTREE)/rules.mk
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sinclude $(obj).depend
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#########################################################################
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428
lib_mips/board.c
428
lib_mips/board.c
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@ -1,428 +0,0 @@
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/*
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* (C) Copyright 2003
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <command.h>
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#include <malloc.h>
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#include <devices.h>
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#include <version.h>
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#include <net.h>
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#include <environment.h>
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DECLARE_GLOBAL_DATA_PTR;
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#if ( ((CFG_ENV_ADDR+CFG_ENV_SIZE) < CFG_MONITOR_BASE) || \
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(CFG_ENV_ADDR >= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)) ) || \
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defined(CFG_ENV_IS_IN_NVRAM)
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#define TOTAL_MALLOC_LEN (CFG_MALLOC_LEN + CFG_ENV_SIZE)
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#else
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#define TOTAL_MALLOC_LEN CFG_MALLOC_LEN
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#endif
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#undef DEBUG
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extern int timer_init(void);
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extern int incaip_set_cpuclk(void);
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extern ulong uboot_end_data;
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extern ulong uboot_end;
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ulong monitor_flash_len;
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const char version_string[] =
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U_BOOT_VERSION" (" __DATE__ " - " __TIME__ ")";
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static char *failed = "*** failed ***\n";
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/*
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* Begin and End of memory area for malloc(), and current "brk"
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*/
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static ulong mem_malloc_start;
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static ulong mem_malloc_end;
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static ulong mem_malloc_brk;
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/*
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* The Malloc area is immediately below the monitor copy in DRAM
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*/
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static void mem_malloc_init (void)
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{
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ulong dest_addr = CFG_MONITOR_BASE + gd->reloc_off;
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mem_malloc_end = dest_addr;
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mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN;
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mem_malloc_brk = mem_malloc_start;
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memset ((void *) mem_malloc_start,
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0,
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mem_malloc_end - mem_malloc_start);
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}
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void *sbrk (ptrdiff_t increment)
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{
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ulong old = mem_malloc_brk;
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ulong new = old + increment;
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if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
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return (NULL);
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}
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mem_malloc_brk = new;
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return ((void *) old);
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}
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static int init_func_ram (void)
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{
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#ifdef CONFIG_BOARD_TYPES
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int board_type = gd->board_type;
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#else
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int board_type = 0; /* use dummy arg */
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#endif
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puts ("DRAM: ");
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if ((gd->ram_size = initdram (board_type)) > 0) {
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print_size (gd->ram_size, "\n");
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return (0);
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}
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puts (failed);
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return (1);
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}
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static int display_banner(void)
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{
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printf ("\n\n%s\n\n", version_string);
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return (0);
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}
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static void display_flash_config(ulong size)
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{
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puts ("Flash: ");
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print_size (size, "\n");
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}
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static int init_baudrate (void)
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{
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char tmp[64]; /* long enough for environment variables */
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int i = getenv_r ("baudrate", tmp, sizeof (tmp));
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gd->baudrate = (i > 0)
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? (int) simple_strtoul (tmp, NULL, 10)
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: CONFIG_BAUDRATE;
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return (0);
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}
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/*
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* Breath some life into the board...
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*
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* The first part of initialization is running from Flash memory;
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* its main purpose is to initialize the RAM so that we
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* can relocate the monitor code to RAM.
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*/
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/*
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* All attempts to come up with a "common" initialization sequence
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* that works for all boards and architectures failed: some of the
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* requirements are just _too_ different. To get rid of the resulting
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* mess of board dependend #ifdef'ed code we now make the whole
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* initialization sequence configurable to the user.
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*
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* The requirements for any new initalization function is simple: it
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* receives a pointer to the "global data" structure as it's only
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* argument, and returns an integer return code, where 0 means
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* "continue" and != 0 means "fatal error, hang the system".
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*/
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typedef int (init_fnc_t) (void);
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init_fnc_t *init_sequence[] = {
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timer_init,
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env_init, /* initialize environment */
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#ifdef CONFIG_INCA_IP
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incaip_set_cpuclk, /* set cpu clock according to environment variable */
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#endif
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init_baudrate, /* initialze baudrate settings */
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serial_init, /* serial communications setup */
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console_init_f,
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display_banner, /* say that we are here */
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checkboard,
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init_func_ram,
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NULL,
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};
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void board_init_f(ulong bootflag)
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{
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gd_t gd_data, *id;
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bd_t *bd;
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init_fnc_t **init_fnc_ptr;
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ulong addr, addr_sp, len = (ulong)&uboot_end - CFG_MONITOR_BASE;
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ulong *s;
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#ifdef CONFIG_PURPLE
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void copy_code (ulong);
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#endif
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/* Pointer is writable since we allocated a register for it.
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*/
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gd = &gd_data;
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/* compiler optimization barrier needed for GCC >= 3.4 */
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__asm__ __volatile__("": : :"memory");
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memset ((void *)gd, 0, sizeof (gd_t));
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for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
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if ((*init_fnc_ptr)() != 0) {
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hang ();
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}
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}
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/*
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* Now that we have DRAM mapped and working, we can
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* relocate the code and continue running from DRAM.
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*/
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addr = CFG_SDRAM_BASE + gd->ram_size;
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/* We can reserve some RAM "on top" here.
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*/
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/* round down to next 4 kB limit.
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*/
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addr &= ~(4096 - 1);
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debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
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/* Reserve memory for U-Boot code, data & bss
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* round down to next 16 kB limit
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*/
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addr -= len;
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addr &= ~(16 * 1024 - 1);
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debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
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/* Reserve memory for malloc() arena.
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*/
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addr_sp = addr - TOTAL_MALLOC_LEN;
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debug ("Reserving %dk for malloc() at: %08lx\n",
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TOTAL_MALLOC_LEN >> 10, addr_sp);
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/*
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* (permanently) allocate a Board Info struct
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* and a permanent copy of the "global" data
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*/
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addr_sp -= sizeof(bd_t);
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bd = (bd_t *)addr_sp;
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gd->bd = bd;
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debug ("Reserving %d Bytes for Board Info at: %08lx\n",
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sizeof(bd_t), addr_sp);
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addr_sp -= sizeof(gd_t);
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id = (gd_t *)addr_sp;
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debug ("Reserving %d Bytes for Global Data at: %08lx\n",
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sizeof (gd_t), addr_sp);
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/* Reserve memory for boot params.
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*/
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addr_sp -= CFG_BOOTPARAMS_LEN;
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bd->bi_boot_params = addr_sp;
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debug ("Reserving %dk for boot params() at: %08lx\n",
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CFG_BOOTPARAMS_LEN >> 10, addr_sp);
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/*
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* Finally, we set up a new (bigger) stack.
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*
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* Leave some safety gap for SP, force alignment on 16 byte boundary
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* Clear initial stack frame
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*/
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addr_sp -= 16;
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addr_sp &= ~0xF;
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s = (ulong *)addr_sp;
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*s-- = 0;
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*s-- = 0;
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addr_sp = (ulong)s;
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debug ("Stack Pointer at: %08lx\n", addr_sp);
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/*
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* Save local variables to board info struct
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*/
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bd->bi_memstart = CFG_SDRAM_BASE; /* start of DRAM memory */
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bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
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bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
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memcpy (id, (void *)gd, sizeof (gd_t));
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/* On the purple board we copy the code in a special way
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* in order to solve flash problems
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*/
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#ifdef CONFIG_PURPLE
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copy_code(addr);
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#endif
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relocate_code (addr_sp, id, addr);
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/* NOTREACHED - relocate_code() does not return */
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}
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/************************************************************************
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*
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* This is the next part if the initialization sequence: we are now
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* running from RAM and have a "normal" C environment, i. e. global
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* data can be written, BSS has been cleared, the stack size in not
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* that critical any more, etc.
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*
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************************************************************************
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*/
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void board_init_r (gd_t *id, ulong dest_addr)
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{
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cmd_tbl_t *cmdtp;
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ulong size;
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extern void malloc_bin_reloc (void);
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#ifndef CFG_ENV_IS_NOWHERE
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extern char * env_name_spec;
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#endif
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char *s, *e;
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bd_t *bd;
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int i;
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gd = id;
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gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
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debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
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gd->reloc_off = dest_addr - CFG_MONITOR_BASE;
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monitor_flash_len = (ulong)&uboot_end_data - dest_addr;
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/*
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* We have to relocate the command table manually
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*/
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for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
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ulong addr;
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addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
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cmdtp->cmd =
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(int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
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addr = (ulong)(cmdtp->name) + gd->reloc_off;
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cmdtp->name = (char *)addr;
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if (cmdtp->usage) {
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addr = (ulong)(cmdtp->usage) + gd->reloc_off;
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cmdtp->usage = (char *)addr;
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}
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#ifdef CFG_LONGHELP
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if (cmdtp->help) {
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addr = (ulong)(cmdtp->help) + gd->reloc_off;
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cmdtp->help = (char *)addr;
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}
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#endif
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}
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/* there are some other pointer constants we must deal with */
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#ifndef CFG_ENV_IS_NOWHERE
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env_name_spec += gd->reloc_off;
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#endif
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/* configure available FLASH banks */
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size = flash_init();
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display_flash_config (size);
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bd = gd->bd;
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bd->bi_flashstart = CFG_FLASH_BASE;
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bd->bi_flashsize = size;
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#if CFG_MONITOR_BASE == CFG_FLASH_BASE
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bd->bi_flashoffset = monitor_flash_len; /* reserved area for U-Boot */
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#else
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bd->bi_flashoffset = 0;
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#endif
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/* initialize malloc() area */
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mem_malloc_init();
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malloc_bin_reloc();
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/* relocate environment function pointers etc. */
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env_relocate();
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/* board MAC address */
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s = getenv ("ethaddr");
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for (i = 0; i < 6; ++i) {
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bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
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if (s)
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s = (*e) ? e + 1 : e;
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}
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/* IP Address */
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bd->bi_ip_addr = getenv_IPaddr("ipaddr");
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#if defined(CONFIG_PCI)
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/*
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* Do pci configuration
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*/
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pci_init();
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#endif
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/** leave this here (after malloc(), environment and PCI are working) **/
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/* Initialize devices */
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devices_init ();
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jumptable_init ();
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/* Initialize the console (after the relocation and devices init) */
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console_init_r ();
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/** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **/
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/* Initialize from environment */
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if ((s = getenv ("loadaddr")) != NULL) {
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load_addr = simple_strtoul (s, NULL, 16);
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}
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#if (CONFIG_COMMANDS & CFG_CMD_NET)
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if ((s = getenv ("bootfile")) != NULL) {
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copy_filename (BootFile, s, sizeof (BootFile));
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}
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#endif /* CFG_CMD_NET */
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#if defined(CONFIG_MISC_INIT_R)
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/* miscellaneous platform dependent initialisations */
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misc_init_r ();
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#endif
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#if (CONFIG_COMMANDS & CFG_CMD_NET)
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#if defined(CONFIG_NET_MULTI)
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puts ("Net: ");
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#endif
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eth_initialize(gd->bd);
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#endif
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/* main_loop() can return to retry autoboot, if so just run it again. */
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for (;;) {
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main_loop ();
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}
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/* NOTREACHED - no way out of command loop except booting */
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}
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void hang (void)
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{
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puts ("### ERROR ### Please RESET the board ###\n");
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for (;;);
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}
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@ -1,285 +0,0 @@
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/*
|
||||
* (C) Copyright 2003
|
||||
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
||||
*
|
||||
* See file CREDITS for list of people who contributed to this
|
||||
* project.
|
||||
*
|
||||
* 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
|
||||
*
|
||||
*/
|
||||
|
||||
#include <common.h>
|
||||
#include <command.h>
|
||||
#include <image.h>
|
||||
#include <zlib.h>
|
||||
#include <asm/byteorder.h>
|
||||
#include <asm/addrspace.h>
|
||||
|
||||
DECLARE_GLOBAL_DATA_PTR;
|
||||
|
||||
#define LINUX_MAX_ENVS 256
|
||||
#define LINUX_MAX_ARGS 256
|
||||
|
||||
#ifdef CONFIG_SHOW_BOOT_PROGRESS
|
||||
# include <status_led.h>
|
||||
# define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg)
|
||||
#else
|
||||
# define SHOW_BOOT_PROGRESS(arg)
|
||||
#endif
|
||||
|
||||
extern image_header_t header; /* from cmd_bootm.c */
|
||||
|
||||
extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
|
||||
|
||||
static int linux_argc;
|
||||
static char ** linux_argv;
|
||||
|
||||
static char ** linux_env;
|
||||
static char * linux_env_p;
|
||||
static int linux_env_idx;
|
||||
|
||||
static void linux_params_init (ulong start, char * commandline);
|
||||
static void linux_env_set (char * env_name, char * env_val);
|
||||
|
||||
|
||||
void do_bootm_linux (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[],
|
||||
ulong addr, ulong * len_ptr, int verify)
|
||||
{
|
||||
ulong len = 0, checksum;
|
||||
ulong initrd_start, initrd_end;
|
||||
ulong data;
|
||||
void (*theKernel) (int, char **, char **, int *);
|
||||
image_header_t *hdr = &header;
|
||||
char *commandline = getenv ("bootargs");
|
||||
char env_buf[12];
|
||||
|
||||
theKernel =
|
||||
(void (*)(int, char **, char **, int *)) ntohl (hdr->ih_ep);
|
||||
|
||||
/*
|
||||
* Check if there is an initrd image
|
||||
*/
|
||||
if (argc >= 3) {
|
||||
SHOW_BOOT_PROGRESS (9);
|
||||
|
||||
addr = simple_strtoul (argv[2], NULL, 16);
|
||||
|
||||
printf ("## Loading Ramdisk Image at %08lx ...\n", addr);
|
||||
|
||||
/* Copy header so we can blank CRC field for re-calculation */
|
||||
memcpy (&header, (char *) addr, sizeof (image_header_t));
|
||||
|
||||
if (ntohl (hdr->ih_magic) != IH_MAGIC) {
|
||||
printf ("Bad Magic Number\n");
|
||||
SHOW_BOOT_PROGRESS (-10);
|
||||
do_reset (cmdtp, flag, argc, argv);
|
||||
}
|
||||
|
||||
data = (ulong) & header;
|
||||
len = sizeof (image_header_t);
|
||||
|
||||
checksum = ntohl (hdr->ih_hcrc);
|
||||
hdr->ih_hcrc = 0;
|
||||
|
||||
if (crc32 (0, (uchar *) data, len) != checksum) {
|
||||
printf ("Bad Header Checksum\n");
|
||||
SHOW_BOOT_PROGRESS (-11);
|
||||
do_reset (cmdtp, flag, argc, argv);
|
||||
}
|
||||
|
||||
SHOW_BOOT_PROGRESS (10);
|
||||
|
||||
print_image_hdr (hdr);
|
||||
|
||||
data = addr + sizeof (image_header_t);
|
||||
len = ntohl (hdr->ih_size);
|
||||
|
||||
if (verify) {
|
||||
ulong csum = 0;
|
||||
|
||||
printf (" Verifying Checksum ... ");
|
||||
csum = crc32 (0, (uchar *) data, len);
|
||||
if (csum != ntohl (hdr->ih_dcrc)) {
|
||||
printf ("Bad Data CRC\n");
|
||||
SHOW_BOOT_PROGRESS (-12);
|
||||
do_reset (cmdtp, flag, argc, argv);
|
||||
}
|
||||
printf ("OK\n");
|
||||
}
|
||||
|
||||
SHOW_BOOT_PROGRESS (11);
|
||||
|
||||
if ((hdr->ih_os != IH_OS_LINUX) ||
|
||||
(hdr->ih_arch != IH_CPU_MIPS) ||
|
||||
(hdr->ih_type != IH_TYPE_RAMDISK)) {
|
||||
printf ("No Linux MIPS Ramdisk Image\n");
|
||||
SHOW_BOOT_PROGRESS (-13);
|
||||
do_reset (cmdtp, flag, argc, argv);
|
||||
}
|
||||
|
||||
/*
|
||||
* Now check if we have a multifile image
|
||||
*/
|
||||
} else if ((hdr->ih_type == IH_TYPE_MULTI) && (len_ptr[1])) {
|
||||
ulong tail = ntohl (len_ptr[0]) % 4;
|
||||
int i;
|
||||
|
||||
SHOW_BOOT_PROGRESS (13);
|
||||
|
||||
/* skip kernel length and terminator */
|
||||
data = (ulong) (&len_ptr[2]);
|
||||
/* skip any additional image length fields */
|
||||
for (i = 1; len_ptr[i]; ++i)
|
||||
data += 4;
|
||||
/* add kernel length, and align */
|
||||
data += ntohl (len_ptr[0]);
|
||||
if (tail) {
|
||||
data += 4 - tail;
|
||||
}
|
||||
|
||||
len = ntohl (len_ptr[1]);
|
||||
|
||||
} else {
|
||||
/*
|
||||
* no initrd image
|
||||
*/
|
||||
SHOW_BOOT_PROGRESS (14);
|
||||
|
||||
data = 0;
|
||||
}
|
||||
|
||||
#ifdef DEBUG
|
||||
if (!data) {
|
||||
printf ("No initrd\n");
|
||||
}
|
||||
#endif
|
||||
|
||||
if (data) {
|
||||
initrd_start = data;
|
||||
initrd_end = initrd_start + len;
|
||||
} else {
|
||||
initrd_start = 0;
|
||||
initrd_end = 0;
|
||||
}
|
||||
|
||||
SHOW_BOOT_PROGRESS (15);
|
||||
|
||||
#ifdef DEBUG
|
||||
printf ("## Transferring control to Linux (at address %08lx) ...\n",
|
||||
(ulong) theKernel);
|
||||
#endif
|
||||
|
||||
linux_params_init (UNCACHED_SDRAM (gd->bd->bi_boot_params), commandline);
|
||||
|
||||
#ifdef CONFIG_MEMSIZE_IN_BYTES
|
||||
sprintf (env_buf, "%lu", gd->ram_size);
|
||||
#ifdef DEBUG
|
||||
printf ("## Giving linux memsize in bytes, %lu\n", gd->ram_size);
|
||||
#endif
|
||||
#else
|
||||
sprintf (env_buf, "%lu", gd->ram_size >> 20);
|
||||
#ifdef DEBUG
|
||||
printf ("## Giving linux memsize in MB, %lu\n", gd->ram_size >> 20);
|
||||
#endif
|
||||
#endif /* CONFIG_MEMSIZE_IN_BYTES */
|
||||
|
||||
linux_env_set ("memsize", env_buf);
|
||||
|
||||
sprintf (env_buf, "0x%08X", (uint) UNCACHED_SDRAM (initrd_start));
|
||||
linux_env_set ("initrd_start", env_buf);
|
||||
|
||||
sprintf (env_buf, "0x%X", (uint) (initrd_end - initrd_start));
|
||||
linux_env_set ("initrd_size", env_buf);
|
||||
|
||||
sprintf (env_buf, "0x%08X", (uint) (gd->bd->bi_flashstart));
|
||||
linux_env_set ("flash_start", env_buf);
|
||||
|
||||
sprintf (env_buf, "0x%X", (uint) (gd->bd->bi_flashsize));
|
||||
linux_env_set ("flash_size", env_buf);
|
||||
|
||||
/* we assume that the kernel is in place */
|
||||
printf ("\nStarting kernel ...\n\n");
|
||||
|
||||
theKernel (linux_argc, linux_argv, linux_env, 0);
|
||||
}
|
||||
|
||||
static void linux_params_init (ulong start, char *line)
|
||||
{
|
||||
char *next, *quote, *argp;
|
||||
|
||||
linux_argc = 1;
|
||||
linux_argv = (char **) start;
|
||||
linux_argv[0] = 0;
|
||||
argp = (char *) (linux_argv + LINUX_MAX_ARGS);
|
||||
|
||||
next = line;
|
||||
|
||||
while (line && *line && linux_argc < LINUX_MAX_ARGS) {
|
||||
quote = strchr (line, '"');
|
||||
next = strchr (line, ' ');
|
||||
|
||||
while (next != NULL && quote != NULL && quote < next) {
|
||||
/* we found a left quote before the next blank
|
||||
* now we have to find the matching right quote
|
||||
*/
|
||||
next = strchr (quote + 1, '"');
|
||||
if (next != NULL) {
|
||||
quote = strchr (next + 1, '"');
|
||||
next = strchr (next + 1, ' ');
|
||||
}
|
||||
}
|
||||
|
||||
if (next == NULL) {
|
||||
next = line + strlen (line);
|
||||
}
|
||||
|
||||
linux_argv[linux_argc] = argp;
|
||||
memcpy (argp, line, next - line);
|
||||
argp[next - line] = 0;
|
||||
|
||||
argp += next - line + 1;
|
||||
linux_argc++;
|
||||
|
||||
if (*next)
|
||||
next++;
|
||||
|
||||
line = next;
|
||||
}
|
||||
|
||||
linux_env = (char **) (((ulong) argp + 15) & ~15);
|
||||
linux_env[0] = 0;
|
||||
linux_env_p = (char *) (linux_env + LINUX_MAX_ENVS);
|
||||
linux_env_idx = 0;
|
||||
}
|
||||
|
||||
static void linux_env_set (char *env_name, char *env_val)
|
||||
{
|
||||
if (linux_env_idx < LINUX_MAX_ENVS - 1) {
|
||||
linux_env[linux_env_idx] = linux_env_p;
|
||||
|
||||
strcpy (linux_env_p, env_name);
|
||||
linux_env_p += strlen (env_name);
|
||||
|
||||
strcpy (linux_env_p, "=");
|
||||
linux_env_p += 1;
|
||||
|
||||
strcpy (linux_env_p, env_val);
|
||||
linux_env_p += strlen (env_val);
|
||||
|
||||
linux_env_p++;
|
||||
linux_env[++linux_env_idx] = 0;
|
||||
}
|
||||
}
|
||||
|
|
@ -1,90 +0,0 @@
|
|||
/*
|
||||
* (C) Copyright 2003
|
||||
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
||||
*
|
||||
* See file CREDITS for list of people who contributed to this
|
||||
* project.
|
||||
*
|
||||
* 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
|
||||
*/
|
||||
|
||||
#include <common.h>
|
||||
|
||||
|
||||
static inline void mips_compare_set(u32 v)
|
||||
{
|
||||
asm volatile ("mtc0 %0, $11" : : "r" (v));
|
||||
}
|
||||
|
||||
static inline void mips_count_set(u32 v)
|
||||
{
|
||||
asm volatile ("mtc0 %0, $9" : : "r" (v));
|
||||
}
|
||||
|
||||
|
||||
static inline u32 mips_count_get(void)
|
||||
{
|
||||
u32 count;
|
||||
|
||||
asm volatile ("mfc0 %0, $9" : "=r" (count) :);
|
||||
return count;
|
||||
}
|
||||
|
||||
/*
|
||||
* timer without interrupts
|
||||
*/
|
||||
|
||||
int timer_init(void)
|
||||
{
|
||||
mips_compare_set(0);
|
||||
mips_count_set(0);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void reset_timer(void)
|
||||
{
|
||||
mips_count_set(0);
|
||||
}
|
||||
|
||||
ulong get_timer(ulong base)
|
||||
{
|
||||
return mips_count_get() - base;
|
||||
}
|
||||
|
||||
void set_timer(ulong t)
|
||||
{
|
||||
mips_count_set(t);
|
||||
}
|
||||
|
||||
void udelay (unsigned long usec)
|
||||
{
|
||||
ulong tmo;
|
||||
ulong start = get_timer(0);
|
||||
|
||||
tmo = usec * (CFG_HZ / 1000000);
|
||||
while ((ulong)((mips_count_get() - start)) < tmo)
|
||||
/*NOP*/;
|
||||
}
|
||||
|
||||
/*
|
||||
* This function is derived from PowerPC code (timebase clock frequency).
|
||||
* On MIPS it returns the number of timer ticks per second.
|
||||
*/
|
||||
ulong get_tbclk(void)
|
||||
{
|
||||
return CFG_HZ;
|
||||
}
|
||||
Loading…
Reference in New Issue