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wdenkc6097192002-11-03 00:24:07 +00001/*
2 * (C) Copyright 2001
3 * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
Wolfgang Denkdc17fb62005-08-03 22:32:02 +020024#ifndef __ASSEMBLY__
25#define __ASSEMBLY__ /* Dirty trick to get only #defines */
26#endif
27#define __ASM_STUB_PROCESSOR_H__ /* don't include asm/processor. */
wdenkc6097192002-11-03 00:24:07 +000028#include <config.h>
Wolfgang Denkdc17fb62005-08-03 22:32:02 +020029#undef __ASSEMBLY__
wdenkc6097192002-11-03 00:24:07 +000030#include <environment.h>
31
32/*
33 * Handle HOSTS that have prepended
34 * crap on symbol names, not TARGETS.
35 */
36#if defined(__APPLE__)
37/* Leading underscore on symbols */
38# define SYM_CHAR "_"
39#else /* No leading character on symbols */
40# define SYM_CHAR
41#endif
42
43/*
44 * Generate embedded environment table
45 * inside U-Boot image, if needed.
46 */
47#if defined(ENV_IS_EMBEDDED)
48/*
49 * Only put the environment in it's own section when we are building
50 * U-Boot proper. The host based program "tools/envcrc" does not need
51 * a seperate section. Note that ENV_CRC is only defined when building
52 * U-Boot itself.
53 */
Wolfgang Denk67c31032007-09-16 17:10:04 +020054#if (defined(CFG_USE_PPCENV) || defined(CONFIG_NAND_U_BOOT)) && \
wdenkc6097192002-11-03 00:24:07 +000055 defined(ENV_CRC) /* Environment embedded in U-Boot .ppcenv section */
56/* XXX - This only works with GNU C */
57# define __PPCENV__ __attribute__ ((section(".ppcenv")))
58# define __PPCTEXT__ __attribute__ ((section(".text")))
59
60#elif defined(USE_HOSTCC) /* Native for 'tools/envcrc' */
61# define __PPCENV__ /*XXX DO_NOT_DEL_THIS_COMMENT*/
62# define __PPCTEXT__ /*XXX DO_NOT_DEL_THIS_COMMENT*/
63
64#else /* Environment is embedded in U-Boot's .text section */
65/* XXX - This only works with GNU C */
66# define __PPCENV__ __attribute__ ((section(".text")))
67# define __PPCTEXT__ __attribute__ ((section(".text")))
68#endif
69
70/*
71 * Macros to generate global absolutes.
72 */
Mike Frysinger4087bc82008-02-04 19:26:54 -050073#if defined(__bfin__)
74# define GEN_SET_VALUE(name, value) asm (".set " GEN_SYMNAME(name) ", " GEN_VALUE(value))
75#else
76# define GEN_SET_VALUE(name, value) asm (GEN_SYMNAME(name) " = " GEN_VALUE(value))
77#endif
wdenkc6097192002-11-03 00:24:07 +000078#define GEN_SYMNAME(str) SYM_CHAR #str
79#define GEN_VALUE(str) #str
80#define GEN_ABS(name, value) \
81 asm (".globl " GEN_SYMNAME(name)); \
Mike Frysinger4087bc82008-02-04 19:26:54 -050082 GEN_SET_VALUE(name, value)
wdenkc6097192002-11-03 00:24:07 +000083
84/*
85 * Macros to transform values
86 * into environment strings.
87 */
88#define XMK_STR(x) #x
89#define MK_STR(x) XMK_STR(x)
90
91/*
92 * Check to see if we are building with a
93 * computed CRC. Otherwise define it as ~0.
94 */
95#if !defined(ENV_CRC)
96# define ENV_CRC ~0
97#endif
98
99env_t environment __PPCENV__ = {
100 ENV_CRC, /* CRC Sum */
101#ifdef CFG_REDUNDAND_ENVIRONMENT
102 1, /* Flags: valid */
103#endif
104 {
105#if defined(CONFIG_BOOTARGS)
106 "bootargs=" CONFIG_BOOTARGS "\0"
107#endif
108#if defined(CONFIG_BOOTCOMMAND)
109 "bootcmd=" CONFIG_BOOTCOMMAND "\0"
110#endif
111#if defined(CONFIG_RAMBOOTCOMMAND)
112 "ramboot=" CONFIG_RAMBOOTCOMMAND "\0"
113#endif
114#if defined(CONFIG_NFSBOOTCOMMAND)
115 "nfsboot=" CONFIG_NFSBOOTCOMMAND "\0"
116#endif
117#if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
118 "bootdelay=" MK_STR(CONFIG_BOOTDELAY) "\0"
119#endif
120#if defined(CONFIG_BAUDRATE) && (CONFIG_BAUDRATE >= 0)
121 "baudrate=" MK_STR(CONFIG_BAUDRATE) "\0"
122#endif
123#ifdef CONFIG_LOADS_ECHO
124 "loads_echo=" MK_STR(CONFIG_LOADS_ECHO) "\0"
125#endif
126#ifdef CONFIG_ETHADDR
127 "ethaddr=" MK_STR(CONFIG_ETHADDR) "\0"
128#endif
129#ifdef CONFIG_ETH1ADDR
130 "eth1addr=" MK_STR(CONFIG_ETH1ADDR) "\0"
131#endif
132#ifdef CONFIG_ETH2ADDR
133 "eth2addr=" MK_STR(CONFIG_ETH2ADDR) "\0"
134#endif
wdenke2ffd592004-12-31 09:32:47 +0000135#ifdef CONFIG_ETH3ADDR
136 "eth3addr=" MK_STR(CONFIG_ETH3ADDR) "\0"
137#endif
wdenkc6097192002-11-03 00:24:07 +0000138#ifdef CONFIG_ETHPRIME
139 "ethprime=" CONFIG_ETHPRIME "\0"
140#endif
141#ifdef CONFIG_IPADDR
142 "ipaddr=" MK_STR(CONFIG_IPADDR) "\0"
143#endif
144#ifdef CONFIG_SERVERIP
145 "serverip=" MK_STR(CONFIG_SERVERIP) "\0"
146#endif
147#ifdef CFG_AUTOLOAD
148 "autoload=" CFG_AUTOLOAD "\0"
149#endif
150#ifdef CONFIG_ROOTPATH
151 "rootpath=" MK_STR(CONFIG_ROOTPATH) "\0"
152#endif
153#ifdef CONFIG_GATEWAYIP
154 "gatewayip=" MK_STR(CONFIG_GATEWAYIP) "\0"
155#endif
156#ifdef CONFIG_NETMASK
157 "netmask=" MK_STR(CONFIG_NETMASK) "\0"
158#endif
159#ifdef CONFIG_HOSTNAME
160 "hostname=" MK_STR(CONFIG_HOSTNAME) "\0"
161#endif
162#ifdef CONFIG_BOOTFILE
163 "bootfile=" MK_STR(CONFIG_BOOTFILE) "\0"
164#endif
165#ifdef CONFIG_LOADADDR
166 "loadaddr=" MK_STR(CONFIG_LOADADDR) "\0"
167#endif
168#ifdef CONFIG_PREBOOT
169 "preboot=" CONFIG_PREBOOT "\0"
170#endif
171#ifdef CONFIG_CLOCKS_IN_MHZ
172 "clocks_in_mhz=" "1" "\0"
173#endif
stroesead10dd92003-02-14 11:21:23 +0000174#if defined(CONFIG_PCI_BOOTDELAY) && (CONFIG_PCI_BOOTDELAY > 0)
175 "pcidelay=" MK_STR(CONFIG_PCI_BOOTDELAY) "\0"
176#endif
wdenkc6097192002-11-03 00:24:07 +0000177#ifdef CONFIG_EXTRA_ENV_SETTINGS
178 CONFIG_EXTRA_ENV_SETTINGS
179#endif
wdenkd0fb80c2003-01-11 09:48:40 +0000180 "\0" /* Term. env_t.data with 2 NULs */
wdenkc6097192002-11-03 00:24:07 +0000181 }
182};
Jean-Christophe PLAGNIOL-VILLARD0e8d1582008-09-10 22:48:06 +0200183#ifdef CONFIG_ENV_ADDR_REDUND
wdenkc6097192002-11-03 00:24:07 +0000184env_t redundand_environment __PPCENV__ = {
185 0, /* CRC Sum: invalid */
186 0, /* Flags: invalid */
187 {
188 "\0"
189 }
190};
Jean-Christophe PLAGNIOL-VILLARD0e8d1582008-09-10 22:48:06 +0200191#endif /* CONFIG_ENV_ADDR_REDUND */
wdenkc6097192002-11-03 00:24:07 +0000192
193/*
194 * These will end up in the .text section
195 * if the environment strings are embedded
196 * in the image. When this is used for
197 * tools/envcrc, they are placed in the
198 * .data/.sdata section.
199 *
200 */
201unsigned long env_size __PPCTEXT__ = sizeof(env_t);
202
203/*
204 * Add in absolutes.
205 */
Jean-Christophe PLAGNIOL-VILLARD0e8d1582008-09-10 22:48:06 +0200206GEN_ABS(env_offset, CONFIG_ENV_OFFSET);
wdenkc6097192002-11-03 00:24:07 +0000207
208#endif /* ENV_IS_EMBEDDED */