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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__
Igor Grinbergbd2a23a2011-11-07 01:14:06 +000025#define __ASSEMBLY__ /* Dirty trick to get only #defines */
Wolfgang Denkdc17fb62005-08-03 22:32:02 +020026#endif
Igor Grinbergbd2a23a2011-11-07 01:14:06 +000027#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
Igor Grinbergbd2a23a2011-11-07 01:14:06 +000032/* Handle HOSTS that have prepended crap on symbol names, not TARGETS. */
wdenkc6097192002-11-03 00:24:07 +000033#if defined(__APPLE__)
34/* Leading underscore on symbols */
35# define SYM_CHAR "_"
36#else /* No leading character on symbols */
37# define SYM_CHAR
38#endif
39
40/*
Wolfgang Denka747a7f2009-10-27 00:03:32 +010041 * Generate embedded environment table
42 * inside U-Boot image, if needed.
43 */
Mike Frysingerc3eb3fe2011-07-08 10:44:25 +000044#if defined(ENV_IS_EMBEDDED) || defined(CONFIG_BUILD_ENVCRC)
Wolfgang Denka747a7f2009-10-27 00:03:32 +010045/*
wdenkc6097192002-11-03 00:24:07 +000046 * Only put the environment in it's own section when we are building
47 * U-Boot proper. The host based program "tools/envcrc" does not need
48 * a seperate section. Note that ENV_CRC is only defined when building
49 * U-Boot itself.
50 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020051#if (defined(CONFIG_SYS_USE_PPCENV) || defined(CONFIG_NAND_U_BOOT)) && \
Igor Grinbergbd2a23a2011-11-07 01:14:06 +000052 defined(ENV_CRC) /* Environment embedded in U-Boot .ppcenv section */
wdenkc6097192002-11-03 00:24:07 +000053/* XXX - This only works with GNU C */
Igor Grinbergbd2a23a2011-11-07 01:14:06 +000054# define __PPCENV__ __attribute__ ((section(".ppcenv")))
55# define __PPCTEXT__ __attribute__ ((section(".text")))
wdenkc6097192002-11-03 00:24:07 +000056
57#elif defined(USE_HOSTCC) /* Native for 'tools/envcrc' */
Igor Grinbergbd2a23a2011-11-07 01:14:06 +000058# define __PPCENV__ /*XXX DO_NOT_DEL_THIS_COMMENT*/
59# define __PPCTEXT__ /*XXX DO_NOT_DEL_THIS_COMMENT*/
wdenkc6097192002-11-03 00:24:07 +000060
61#else /* Environment is embedded in U-Boot's .text section */
62/* XXX - This only works with GNU C */
Igor Grinbergbd2a23a2011-11-07 01:14:06 +000063# define __PPCENV__ __attribute__ ((section(".text")))
64# define __PPCTEXT__ __attribute__ ((section(".text")))
wdenkc6097192002-11-03 00:24:07 +000065#endif
66
67/*
68 * Macros to generate global absolutes.
69 */
Mike Frysinger4087bc82008-02-04 19:26:54 -050070#if defined(__bfin__)
Igor Grinbergbd2a23a2011-11-07 01:14:06 +000071# define GEN_SET_VALUE(name, value) \
72 asm(".set " GEN_SYMNAME(name) ", " GEN_VALUE(value))
Mike Frysinger4087bc82008-02-04 19:26:54 -050073#else
Igor Grinbergbd2a23a2011-11-07 01:14:06 +000074# define GEN_SET_VALUE(name, value) \
75 asm(GEN_SYMNAME(name) " = " GEN_VALUE(value))
Mike Frysinger4087bc82008-02-04 19:26:54 -050076#endif
Igor Grinbergbd2a23a2011-11-07 01:14:06 +000077#define GEN_SYMNAME(str) SYM_CHAR #str
78#define GEN_VALUE(str) #str
79#define GEN_ABS(name, value) \
80 asm(".globl " GEN_SYMNAME(name)); \
81 GEN_SET_VALUE(name, value)
wdenkc6097192002-11-03 00:24:07 +000082
83/*
84 * Macros to transform values
85 * into environment strings.
86 */
87#define XMK_STR(x) #x
88#define MK_STR(x) XMK_STR(x)
89
90/*
91 * Check to see if we are building with a
92 * computed CRC. Otherwise define it as ~0.
93 */
94#if !defined(ENV_CRC)
Igor Grinbergbd2a23a2011-11-07 01:14:06 +000095# define ENV_CRC (~0)
wdenkc6097192002-11-03 00:24:07 +000096#endif
97
98env_t environment __PPCENV__ = {
99 ENV_CRC, /* CRC Sum */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200100#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
wdenkc6097192002-11-03 00:24:07 +0000101 1, /* Flags: valid */
102#endif
103 {
104#if defined(CONFIG_BOOTARGS)
105 "bootargs=" CONFIG_BOOTARGS "\0"
106#endif
107#if defined(CONFIG_BOOTCOMMAND)
108 "bootcmd=" CONFIG_BOOTCOMMAND "\0"
109#endif
110#if defined(CONFIG_RAMBOOTCOMMAND)
111 "ramboot=" CONFIG_RAMBOOTCOMMAND "\0"
112#endif
113#if defined(CONFIG_NFSBOOTCOMMAND)
114 "nfsboot=" CONFIG_NFSBOOTCOMMAND "\0"
115#endif
116#if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
117 "bootdelay=" MK_STR(CONFIG_BOOTDELAY) "\0"
118#endif
119#if defined(CONFIG_BAUDRATE) && (CONFIG_BAUDRATE >= 0)
120 "baudrate=" MK_STR(CONFIG_BAUDRATE) "\0"
121#endif
122#ifdef CONFIG_LOADS_ECHO
123 "loads_echo=" MK_STR(CONFIG_LOADS_ECHO) "\0"
124#endif
125#ifdef CONFIG_ETHADDR
126 "ethaddr=" MK_STR(CONFIG_ETHADDR) "\0"
127#endif
128#ifdef CONFIG_ETH1ADDR
129 "eth1addr=" MK_STR(CONFIG_ETH1ADDR) "\0"
130#endif
131#ifdef CONFIG_ETH2ADDR
132 "eth2addr=" MK_STR(CONFIG_ETH2ADDR) "\0"
133#endif
wdenke2ffd592004-12-31 09:32:47 +0000134#ifdef CONFIG_ETH3ADDR
135 "eth3addr=" MK_STR(CONFIG_ETH3ADDR) "\0"
136#endif
richardretanubunc68a05f2008-09-29 18:28:23 -0400137#ifdef CONFIG_ETH4ADDR
138 "eth4addr=" MK_STR(CONFIG_ETH4ADDR) "\0"
139#endif
140#ifdef CONFIG_ETH5ADDR
141 "eth5addr=" MK_STR(CONFIG_ETH5ADDR) "\0"
142#endif
wdenkc6097192002-11-03 00:24:07 +0000143#ifdef CONFIG_ETHPRIME
144 "ethprime=" CONFIG_ETHPRIME "\0"
145#endif
146#ifdef CONFIG_IPADDR
147 "ipaddr=" MK_STR(CONFIG_IPADDR) "\0"
148#endif
149#ifdef CONFIG_SERVERIP
150 "serverip=" MK_STR(CONFIG_SERVERIP) "\0"
151#endif
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200152#ifdef CONFIG_SYS_AUTOLOAD
Igor Grinbergbd2a23a2011-11-07 01:14:06 +0000153 "autoload=" CONFIG_SYS_AUTOLOAD "\0"
wdenkc6097192002-11-03 00:24:07 +0000154#endif
155#ifdef CONFIG_ROOTPATH
Joe Hershberger8b3637c2011-10-13 13:03:47 +0000156 "rootpath=" CONFIG_ROOTPATH "\0"
wdenkc6097192002-11-03 00:24:07 +0000157#endif
158#ifdef CONFIG_GATEWAYIP
159 "gatewayip=" MK_STR(CONFIG_GATEWAYIP) "\0"
160#endif
161#ifdef CONFIG_NETMASK
162 "netmask=" MK_STR(CONFIG_NETMASK) "\0"
163#endif
164#ifdef CONFIG_HOSTNAME
165 "hostname=" MK_STR(CONFIG_HOSTNAME) "\0"
166#endif
167#ifdef CONFIG_BOOTFILE
Joe Hershbergerb3f44c22011-10-13 13:03:48 +0000168 "bootfile=" CONFIG_BOOTFILE "\0"
wdenkc6097192002-11-03 00:24:07 +0000169#endif
170#ifdef CONFIG_LOADADDR
171 "loadaddr=" MK_STR(CONFIG_LOADADDR) "\0"
172#endif
173#ifdef CONFIG_PREBOOT
174 "preboot=" CONFIG_PREBOOT "\0"
175#endif
176#ifdef CONFIG_CLOCKS_IN_MHZ
177 "clocks_in_mhz=" "1" "\0"
178#endif
stroesead10dd92003-02-14 11:21:23 +0000179#if defined(CONFIG_PCI_BOOTDELAY) && (CONFIG_PCI_BOOTDELAY > 0)
180 "pcidelay=" MK_STR(CONFIG_PCI_BOOTDELAY) "\0"
181#endif
Igor Grinbergbd2a23a2011-11-07 01:14:06 +0000182#ifdef CONFIG_EXTRA_ENV_SETTINGS
wdenkc6097192002-11-03 00:24:07 +0000183 CONFIG_EXTRA_ENV_SETTINGS
184#endif
wdenkd0fb80c2003-01-11 09:48:40 +0000185 "\0" /* Term. env_t.data with 2 NULs */
wdenkc6097192002-11-03 00:24:07 +0000186 }
187};
Jean-Christophe PLAGNIOL-VILLARD0e8d1582008-09-10 22:48:06 +0200188#ifdef CONFIG_ENV_ADDR_REDUND
wdenkc6097192002-11-03 00:24:07 +0000189env_t redundand_environment __PPCENV__ = {
190 0, /* CRC Sum: invalid */
191 0, /* Flags: invalid */
192 {
193 "\0"
194 }
195};
Jean-Christophe PLAGNIOL-VILLARD0e8d1582008-09-10 22:48:06 +0200196#endif /* CONFIG_ENV_ADDR_REDUND */
wdenkc6097192002-11-03 00:24:07 +0000197
198/*
199 * These will end up in the .text section
200 * if the environment strings are embedded
201 * in the image. When this is used for
202 * tools/envcrc, they are placed in the
203 * .data/.sdata section.
204 *
205 */
206unsigned long env_size __PPCTEXT__ = sizeof(env_t);
207
208/*
209 * Add in absolutes.
210 */
Jean-Christophe PLAGNIOL-VILLARD0e8d1582008-09-10 22:48:06 +0200211GEN_ABS(env_offset, CONFIG_ENV_OFFSET);
Wolfgang Denka747a7f2009-10-27 00:03:32 +0100212
213#endif /* ENV_IS_EMBEDDED */