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Diffstat (limited to 'libgloss/mips/cfe.c')
| -rw-r--r-- | libgloss/mips/cfe.c | 141 |
1 files changed, 0 insertions, 141 deletions
diff --git a/libgloss/mips/cfe.c b/libgloss/mips/cfe.c deleted file mode 100644 index 6efd57d1f..000000000 --- a/libgloss/mips/cfe.c +++ /dev/null @@ -1,141 +0,0 @@ -/* cfe.c -- I/O code for the MIPS boards running CFE. */ - -/* - * Copyright 2001, 2002 - * Broadcom Corporation. All rights reserved. - * - * This software is furnished under license and may be used and copied only - * in accordance with the following terms and conditions. Subject to these - * conditions, you may download, copy, install, use, modify and distribute - * modified or unmodified copies of this software in source and/or binary - * form. No title or ownership is transferred hereby. - * - * 1) Any source code used, modified or distributed must reproduce and - * retain this copyright notice and list of conditions as they appear in - * the source file. - * - * 2) No right is granted to use any trade name, trademark, or logo of - * Broadcom Corporation. The "Broadcom Corporation" name may not be - * used to endorse or promote products derived from this software - * without the prior written permission of Broadcom Corporation. - * - * 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR - * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM BE LIABLE - * FOR ANY DAMAGES WHATSOEVER, AND IN PARTICULAR, BROADCOM SHALL NOT BE - * LIABLE FOR DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - */ - -#include "cfe_api.h" - -char inbyte (void); -int outbyte (char c); - -/* Make sure cfe_prestart is used. It doesn't look like setting the - entry symbol in the linker script to a symbol from that fiel will do - this! */ -extern int _prestart; -static void *force_prestart = &_prestart; - -/* The following variables are initialized to non-zero so that they'll be - in data, rather than BSS. Used to be that you could init variables to - any value to put them into initialized data sections rather than BSS, - but that decades-old idiom went out the window with gcc 3.2. Now, - either you compile specially (with -fno-zero-initialized-in-bss), or - you init to non-zero. In this case, initting to non-zero is OK (and - even beneficial; alignment fault via jump to odd if not properly - set up by _prestart()), so we do the latter. */ -unsigned int __cfe_handle = 0xdeadbeef; -unsigned int __cfe_entrypt = 0xdeadbeef; - -/* Echo input characters? */ -int __cfe_echo_input = 0; - -/* CFE handle used to access console device. */ -static int cfe_conshandle; - -char -inbyte (void) -{ - unsigned char c; - int rv; - - while (cfe_read (cfe_conshandle, &c, 1) != 1) - ; - if (c == '\r') - c = '\n'; - if (__cfe_echo_input) - outbyte (c); - return c; -} - -int -outbyte (char c) -{ - int res; - - do - { - res = cfe_write (cfe_conshandle, &c, 1); - } - while (res == 0); - if (c == '\n') - outbyte ('\r'); - return 0; -} - -/* Initialize hardware. Called from crt0. */ -void -hardware_init_hook(void) -{ - cfe_init (__cfe_handle, __cfe_entrypt); - cfe_conshandle = cfe_getstdhandle(CFE_STDHANDLE_CONSOLE); -} - -/* Avoid worst-case execution hazards. This is targetted at the SB-1 - pipe, and is much worse than it needs to be (not even counting - the subroutine call and return). */ -void -hardware_hazard_hook(void) -{ - __asm__ __volatile__ (" .set push \n" - " .set mips32 \n" - " .set noreorder \n" - " ssnop \n" - " ssnop \n" - " ssnop \n" - " bnel $0, $0, .+4 \n" - " ssnop \n" - " .set pop \n"); -} - -/* Exit back to monitor, with the given status code. */ -void -hardware_exit_hook (int status) -{ - outbyte ('\r'); - outbyte ('\n'); - cfe_exit (CFE_FLG_WARMSTART, status); -} - -/* Structure filled in by get_mem_info. Only the size field is - actually used (by sbrk), so the others aren't even filled in. */ -struct s_mem -{ - unsigned int size; - unsigned int icsize; - unsigned int dcsize; -}; - -void -get_mem_info (mem) - struct s_mem *mem; -{ - /* XXX FIXME: Fake this for now. Should invoke cfe_enummem, but we - don't have enough stack to do that (yet). */ - mem->size = 0x4000000; /* Assume 64 MB of RAM */ -} |