mirror of
https://github.com/AsahiLinux/u-boot
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a09fea1d28
- In ARMv8 NXP Layerscape platforms we also need to make use of CONFIG_SYS_RELOC_GD_ENV_ADDR now, do so. - On ENV_IS_IN_REMOTE, CONFIG_ENV_OFFSET is never used, drop the define to 0. - Add Kconfig entry for ENV_ADDR. - Make ENV_ADDR / ENV_OFFSET depend on the env locations that use it. - Add ENV_xxx_REDUND options that depend on their primary option and SYS_REDUNDAND_ENVIRONMENT - On a number of PowerPC platforms, use SPL_ENV_ADDR not CONFIG_ENV_ADDR for the pre-main-U-Boot environment location. - On ENV_IS_IN_SPI_FLASH, check not for CONFIG_ENV_ADDR being set but rather it being non-zero, as it will now be zero by default. - Rework the env_offset absolute in env/embedded.o to not use CONFIG_ENV_OFFSET as it was the only use of ENV_OFFSET within ENV_IS_IN_FLASH. - Migrate all platforms. Cc: Wolfgang Denk <wd@denx.de> Cc: Joe Hershberger <joe.hershberger@ni.com> Cc: Patrick Delaunay <patrick.delaunay@st.com> Cc: uboot-stm32@st-md-mailman.stormreply.com Signed-off-by: Tom Rini <trini@konsulko.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
96 lines
2.4 KiB
C
96 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2001
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* Erik Theisen, Wave 7 Optics, etheisen@mindspring.com.
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*/
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#include <linux/kconfig.h>
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#ifndef __ASSEMBLY__
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#define __ASSEMBLY__ /* Dirty trick to get only #defines */
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#endif
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#define __ASM_STUB_PROCESSOR_H__ /* don't include asm/processor. */
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#include <config.h>
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#undef __ASSEMBLY__
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#include <env_internal.h>
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#include <linux/stringify.h>
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/* Handle HOSTS that have prepended crap on symbol names, not TARGETS. */
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#if defined(__APPLE__)
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/* Leading underscore on symbols */
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# define SYM_CHAR "_"
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#else /* No leading character on symbols */
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# define SYM_CHAR
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#endif
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/*
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* Generate embedded environment table
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* inside U-Boot image, if needed.
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*/
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#if defined(ENV_IS_EMBEDDED) || defined(CONFIG_BUILD_ENVCRC)
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/*
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* Put the environment in the .text section when we are building
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* U-Boot proper. The host based program "tools/envcrc" does not need
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* a seperate section.
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*/
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#if defined(USE_HOSTCC) /* Native for 'tools/envcrc' */
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# define __UBOOT_ENV_SECTION__(name) /*XXX DO_NOT_DEL_THIS_COMMENT*/
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#else /* Environment is embedded in U-Boot's .text section */
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/* XXX - This only works with GNU C */
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# define __UBOOT_ENV_SECTION__(name) __attribute__ ((section(".text."#name)))
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#endif
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/*
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* Macros to generate global absolutes.
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*/
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#if defined(__bfin__)
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# define GEN_SET_VALUE(name, value) \
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asm(".set " GEN_SYMNAME(name) ", " GEN_VALUE(value))
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#else
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# define GEN_SET_VALUE(name, value) \
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asm(GEN_SYMNAME(name) " = " GEN_VALUE(value))
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#endif
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#define GEN_SYMNAME(str) SYM_CHAR #str
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#define GEN_VALUE(str) #str
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#define GEN_ABS(name, value) \
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asm(".globl " GEN_SYMNAME(name)); \
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GEN_SET_VALUE(name, value)
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/*
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* Check to see if we are building with a
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* computed CRC. Otherwise define it as ~0.
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*/
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#if !defined(ENV_CRC)
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# define ENV_CRC (~0)
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#endif
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#define DEFAULT_ENV_INSTANCE_EMBEDDED
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#include <env_default.h>
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#ifdef CONFIG_ENV_ADDR_REDUND
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env_t redundand_environment __UBOOT_ENV_SECTION__(redundand_environment) = {
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0, /* CRC Sum: invalid */
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0, /* Flags: invalid */
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{
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"\0"
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}
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};
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#endif /* CONFIG_ENV_ADDR_REDUND */
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/*
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* These will end up in the .text section
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* if the environment strings are embedded
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* in the image. When this is used for
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* tools/envcrc, they are placed in the
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* .data/.sdata section.
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*
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*/
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unsigned long env_size __UBOOT_ENV_SECTION__(env_size) = sizeof(env_t);
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/*
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* Add in absolutes.
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*/
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GEN_ABS(env_offset, (CONFIG_ENV_ADDR - CONFIG_SYS_FLASH_BASE));
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#endif /* ENV_IS_EMBEDDED */
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