[people/ms/u-boot.git] / common / env_embedded.c

/*
 * (C) Copyright 2001
 * Erik Theisen,  Wave 7 Optics, etheisen@mindspring.com.
 *
 * 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
 */

#ifndef __ASSEMBLY__
#define	__ASSEMBLY__			/* Dirty trick to get only #defines */
#endif
#define	__ASM_STUB_PROCESSOR_H__	/* don't include asm/processor. */
#include <config.h>
#undef	__ASSEMBLY__
#include <environment.h>

/* Handle HOSTS that have prepended crap on symbol names, not TARGETS. */
#if defined(__APPLE__)
/* Leading underscore on symbols */
#  define SYM_CHAR "_"
#else /* No leading character on symbols */
#  define SYM_CHAR
#endif

/*
 * Generate embedded environment table
 * inside U-Boot image, if needed.
 */
#if defined(ENV_IS_EMBEDDED) || defined(CONFIG_BUILD_ENVCRC)
/*
 * Only put the environment in it's own section when we are building
 * U-Boot proper.  The host based program "tools/envcrc" does not need
 * a seperate section.  Note that ENV_CRC is only defined when building
 * U-Boot itself.
 */
#if (defined(CONFIG_SYS_USE_PPCENV) || defined(CONFIG_NAND_U_BOOT)) && \
	defined(ENV_CRC) /* Environment embedded in U-Boot .ppcenv section */
/* XXX - This only works with GNU C */
#  define __PPCENV__	__attribute__ ((section(".ppcenv")))
#  define __PPCTEXT__	__attribute__ ((section(".text")))

#elif defined(USE_HOSTCC) /* Native for 'tools/envcrc' */
#  define __PPCENV__	/*XXX DO_NOT_DEL_THIS_COMMENT*/
#  define __PPCTEXT__	/*XXX DO_NOT_DEL_THIS_COMMENT*/

#else /* Environment is embedded in U-Boot's .text section */
/* XXX - This only works with GNU C */
#  define __PPCENV__	__attribute__ ((section(".text")))
#  define __PPCTEXT__	__attribute__ ((section(".text")))
#endif

/*
 * Macros to generate global absolutes.
 */
#if defined(__bfin__)
# define GEN_SET_VALUE(name, value)	\
	asm(".set " GEN_SYMNAME(name) ", " GEN_VALUE(value))
#else
# define GEN_SET_VALUE(name, value)	\
	asm(GEN_SYMNAME(name) " = " GEN_VALUE(value))
#endif
#define GEN_SYMNAME(str)	SYM_CHAR #str
#define GEN_VALUE(str)		#str
#define GEN_ABS(name, value)			\
	asm(".globl " GEN_SYMNAME(name));	\
	GEN_SET_VALUE(name, value)

/*
 * Macros to transform values
 * into environment strings.
 */
#define XMK_STR(x)	#x
#define MK_STR(x)	XMK_STR(x)

/*
 * Check to see if we are building with a
 * computed CRC.  Otherwise define it as ~0.
 */
#if !defined(ENV_CRC)
#  define ENV_CRC	(~0)
#endif

env_t environment __PPCENV__ = {
	ENV_CRC,	/* CRC Sum */
#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
	1,		/* Flags: valid */
#endif
	{
#if defined(CONFIG_BOOTARGS)
	"bootargs="	CONFIG_BOOTARGS			"\0"
#endif
#if defined(CONFIG_BOOTCOMMAND)
	"bootcmd="	CONFIG_BOOTCOMMAND		"\0"
#endif
#if defined(CONFIG_RAMBOOTCOMMAND)
	"ramboot="	CONFIG_RAMBOOTCOMMAND		"\0"
#endif
#if defined(CONFIG_NFSBOOTCOMMAND)
	"nfsboot="	CONFIG_NFSBOOTCOMMAND		"\0"
#endif
#if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
	"bootdelay="	MK_STR(CONFIG_BOOTDELAY)	"\0"
#endif
#if defined(CONFIG_BAUDRATE) && (CONFIG_BAUDRATE >= 0)
	"baudrate="	MK_STR(CONFIG_BAUDRATE)		"\0"
#endif
#ifdef	CONFIG_LOADS_ECHO
	"loads_echo="	MK_STR(CONFIG_LOADS_ECHO)	"\0"
#endif
#ifdef	CONFIG_ETHADDR
	"ethaddr="	MK_STR(CONFIG_ETHADDR)		"\0"
#endif
#ifdef	CONFIG_ETH1ADDR
	"eth1addr="	MK_STR(CONFIG_ETH1ADDR)		"\0"
#endif
#ifdef	CONFIG_ETH2ADDR
	"eth2addr="	MK_STR(CONFIG_ETH2ADDR)		"\0"
#endif
#ifdef	CONFIG_ETH3ADDR
	"eth3addr="	MK_STR(CONFIG_ETH3ADDR)		"\0"
#endif
#ifdef	CONFIG_ETH4ADDR
	"eth4addr="	MK_STR(CONFIG_ETH4ADDR)		"\0"
#endif
#ifdef	CONFIG_ETH5ADDR
	"eth5addr="	MK_STR(CONFIG_ETH5ADDR)		"\0"
#endif
#ifdef	CONFIG_ETHPRIME
	"ethprime="	CONFIG_ETHPRIME			"\0"
#endif
#ifdef	CONFIG_IPADDR
	"ipaddr="	MK_STR(CONFIG_IPADDR)		"\0"
#endif
#ifdef	CONFIG_SERVERIP
	"serverip="	MK_STR(CONFIG_SERVERIP)		"\0"
#endif
#ifdef	CONFIG_SYS_AUTOLOAD
	"autoload="	CONFIG_SYS_AUTOLOAD		"\0"
#endif
#ifdef	CONFIG_ROOTPATH
	"rootpath="	CONFIG_ROOTPATH			"\0"
#endif
#ifdef	CONFIG_GATEWAYIP
	"gatewayip="	MK_STR(CONFIG_GATEWAYIP)	"\0"
#endif
#ifdef	CONFIG_NETMASK
	"netmask="	MK_STR(CONFIG_NETMASK)		"\0"
#endif
#ifdef	CONFIG_HOSTNAME
	"hostname="	MK_STR(CONFIG_HOSTNAME)		"\0"
#endif
#ifdef	CONFIG_BOOTFILE
	"bootfile="	CONFIG_BOOTFILE			"\0"
#endif
#ifdef	CONFIG_LOADADDR
	"loadaddr="	MK_STR(CONFIG_LOADADDR)		"\0"
#endif
#ifdef	CONFIG_PREBOOT
	"preboot="	CONFIG_PREBOOT			"\0"
#endif
#ifdef	CONFIG_CLOCKS_IN_MHZ
	"clocks_in_mhz=" "1"				"\0"
#endif
#if defined(CONFIG_PCI_BOOTDELAY) && (CONFIG_PCI_BOOTDELAY > 0)
	"pcidelay="	MK_STR(CONFIG_PCI_BOOTDELAY)	"\0"
#endif
#ifdef	CONFIG_ENV_VARS_UBOOT_CONFIG
	"arch="		CONFIG_SYS_ARCH			"\0"
	"cpu="		CONFIG_SYS_CPU			"\0"
	"board="	CONFIG_SYS_BOARD		"\0"
#ifdef CONFIG_SYS_VENDOR
	"vendor="	CONFIG_SYS_VENDOR		"\0"
#endif
#ifdef CONFIG_SYS_SOC
	"soc="		CONFIG_SYS_SOC			"\0"
#endif
#endif
#ifdef	CONFIG_EXTRA_ENV_SETTINGS
	CONFIG_EXTRA_ENV_SETTINGS
#endif
	"\0"		/* Term. env_t.data with 2 NULs */
	}
};
#ifdef CONFIG_ENV_ADDR_REDUND
env_t redundand_environment __PPCENV__ = {
	0,		/* CRC Sum: invalid */
	0,		/* Flags:   invalid */
	{
	"\0"
	}
};
#endif	/* CONFIG_ENV_ADDR_REDUND */

/*
 * These will end up in the .text section
 * if the environment strings are embedded
 * in the image.  When this is used for
 * tools/envcrc, they are placed in the
 * .data/.sdata section.
 *
 */
unsigned long env_size __PPCTEXT__ = sizeof(env_t);

/*
 * Add in absolutes.
 */
GEN_ABS(env_offset, CONFIG_ENV_OFFSET);

#endif /* ENV_IS_EMBEDDED */
Commit	Line	Data
c609719b WD	1	/*
	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
dc17fb6d	24	#ifndef __ASSEMBLY__
bd2a23ac	25	#define __ASSEMBLY__ /* Dirty trick to get only #defines */
dc17fb6d	26	#endif
bd2a23ac	27	#define __ASM_STUB_PROCESSOR_H__ /* don't include asm/processor. */
c609719b	28	#include <config.h>
dc17fb6d	29	#undef __ASSEMBLY__
c609719b WD	30	#include <environment.h>
c609719b WD	31
bd2a23ac	32	/* Handle HOSTS that have prepended crap on symbol names, not TARGETS. */
c609719b WD	33	#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
a747a7f3 WD	40	/*
	41	* Generate embedded environment table
	42	* inside U-Boot image, if needed.
	43	*/
c3eb3fe4	44	#if defined(ENV_IS_EMBEDDED) \|\| defined(CONFIG_BUILD_ENVCRC)
c609719b WD	45	/*
	46	* 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	*/
6d0f6bcf	51	#if (defined(CONFIG_SYS_USE_PPCENV) \|\| defined(CONFIG_NAND_U_BOOT)) && \
bd2a23ac	52	defined(ENV_CRC) /* Environment embedded in U-Boot .ppcenv section */
c609719b	53	/* XXX - This only works with GNU C */
bd2a23ac IG	54	# define __PPCENV__ __attribute__ ((section(".ppcenv")))
bd2a23ac IG	55	# define __PPCTEXT__ __attribute__ ((section(".text")))
c609719b WD	56
c609719b WD	57	#elif defined(USE_HOSTCC) /* Native for 'tools/envcrc' */
bd2a23ac IG	58	# define __PPCENV__ /XXX DO_NOT_DEL_THIS_COMMENT/
bd2a23ac IG	59	# define __PPCTEXT__ /XXX DO_NOT_DEL_THIS_COMMENT/
c609719b WD	60
	61	#else /* Environment is embedded in U-Boot's .text section */
	62	/* XXX - This only works with GNU C */
bd2a23ac IG	63	# define __PPCENV__ __attribute__ ((section(".text")))
bd2a23ac IG	64	# define __PPCTEXT__ __attribute__ ((section(".text")))
c609719b WD	65	#endif
	66
	67	/*
	68	* Macros to generate global absolutes.
	69	*/
4087bc88	70	#if defined(__bfin__)
bd2a23ac IG	71	# define GEN_SET_VALUE(name, value) \
bd2a23ac IG	72	asm(".set " GEN_SYMNAME(name) ", " GEN_VALUE(value))
4087bc88	73	#else
bd2a23ac IG	74	# define GEN_SET_VALUE(name, value) \
	75	asm(GEN_SYMNAME(name) " = " GEN_VALUE(value))
	76	#endif
	77	#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)
c609719b WD	82
	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)
bd2a23ac	95	# define ENV_CRC (~0)
c609719b WD	96	#endif
	97
	98	env_t environment __PPCENV__ = {
	99	ENV_CRC, /* CRC Sum */
6d0f6bcf	100	#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
c609719b WD	101	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
e2ffd59b WD	134	#ifdef CONFIG_ETH3ADDR
	135	"eth3addr=" MK_STR(CONFIG_ETH3ADDR) "\0"
	136	#endif
c68a05fe	137	#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
c609719b WD	143	#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
6d0f6bcf	152	#ifdef CONFIG_SYS_AUTOLOAD
bd2a23ac	153	"autoload=" CONFIG_SYS_AUTOLOAD "\0"
c609719b WD	154	#endif
c609719b WD	155	#ifdef CONFIG_ROOTPATH
8b3637c6	156	"rootpath=" CONFIG_ROOTPATH "\0"
c609719b WD	157	#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
b3f44c21	168	"bootfile=" CONFIG_BOOTFILE "\0"
c609719b WD	169	#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
ad10dd9a SR	179	#if defined(CONFIG_PCI_BOOTDELAY) && (CONFIG_PCI_BOOTDELAY > 0)
	180	"pcidelay=" MK_STR(CONFIG_PCI_BOOTDELAY) "\0"
	181	#endif
5e724ca2 SW	182	#ifdef CONFIG_ENV_VARS_UBOOT_CONFIG
	183	"arch=" CONFIG_SYS_ARCH "\0"
	184	"cpu=" CONFIG_SYS_CPU "\0"
	185	"board=" CONFIG_SYS_BOARD "\0"
	186	#ifdef CONFIG_SYS_VENDOR
	187	"vendor=" CONFIG_SYS_VENDOR "\0"
	188	#endif
	189	#ifdef CONFIG_SYS_SOC
	190	"soc=" CONFIG_SYS_SOC "\0"
	191	#endif
	192	#endif
bd2a23ac	193	#ifdef CONFIG_EXTRA_ENV_SETTINGS
c609719b WD	194	CONFIG_EXTRA_ENV_SETTINGS
c609719b WD	195	#endif
d0fb80c3	196	"\0" /* Term. env_t.data with 2 NULs */
c609719b WD	197	}
c609719b WD	198	};
0e8d1586	199	#ifdef CONFIG_ENV_ADDR_REDUND
c609719b WD	200	env_t redundand_environment __PPCENV__ = {
	201	0, /* CRC Sum: invalid */
	202	0, /* Flags: invalid */
	203	{
	204	"\0"
	205	}
	206	};
0e8d1586	207	#endif /* CONFIG_ENV_ADDR_REDUND */
c609719b WD	208
	209	/*
	210	* These will end up in the .text section
	211	* if the environment strings are embedded
	212	* in the image. When this is used for
	213	* tools/envcrc, they are placed in the
	214	* .data/.sdata section.
	215	*
	216	*/
	217	unsigned long env_size __PPCTEXT__ = sizeof(env_t);
	218
	219	/*
	220	* Add in absolutes.
	221	*/
0e8d1586	222	GEN_ABS(env_offset, CONFIG_ENV_OFFSET);
a747a7f3 WD	223
a747a7f3 WD	224	#endif /* ENV_IS_EMBEDDED */