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47e544f576
Simon Glass <sjg@chromium.org> says: When the SPL build-phase was first created it was designed to solve a particular problem (the need to init SDRAM so that U-Boot proper could be loaded). It has since expanded to become an important part of U-Boot, with three phases now present: TPL, VPL and SPL Due to this history, the term 'SPL' is used to mean both a particular phase (the one before U-Boot proper) and all the non-proper phases. This has become confusing. For a similar reason CONFIG_SPL_BUILD is set to 'y' for all 'SPL' phases, not just SPL. So code which can only be compiled for actual SPL, for example, must use something like this: #if defined(CONFIG_SPL_BUILD) && !defined(CONFIG_TPL_BUILD) In Makefiles we have similar issues. SPL_ has been used as a variable which expands to either SPL_ or nothing, to chose between options like CONFIG_BLK and CONFIG_SPL_BLK. When TPL appeared, a new SPL_TPL variable was created which expanded to 'SPL_', 'TPL_' or nothing. Later it was updated to support 'VPL_' as well. This series starts a change in terminology and usage to resolve the above issues: - The word 'xPL' is used instead of 'SPL' to mean a non-proper build - A new CONFIG_XPL_BUILD define indicates that the current build is an 'xPL' build - The existing CONFIG_SPL_BUILD is changed to mean SPL; it is not now defined for TPL and VPL phases - The existing SPL_ Makefile variable is renamed to SPL_ - The existing SPL_TPL Makefile variable is renamed to PHASE_ It should be noted that xpl_phase() can generally be used instead of the above CONFIGs without a code-space or run-time penalty. This series does not attempt to convert all of U-Boot to use this new terminology but it makes a start. In particular, renaming spl.h and common/spl seems like a bridge too far at this point. The series is fully bisectable. It has also been checked to ensure there are no code-size changes on any commit.
104 lines
2.1 KiB
C
104 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2012
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* Joe Hershberger, National Instruments, joe.hershberger@ni.com
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*/
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#ifndef __ENV_CALLBACK_H__
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#define __ENV_CALLBACK_H__
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#include <config.h>
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#include <env_flags.h>
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#include <linker_lists.h>
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#include <search.h>
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#define ENV_CALLBACK_VAR ".callbacks"
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/* Board configs can define additional static callback bindings */
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#ifndef CFG_ENV_CALLBACK_LIST_STATIC
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#define CFG_ENV_CALLBACK_LIST_STATIC
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#endif
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#ifdef CONFIG_SILENT_CONSOLE
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#define SILENT_CALLBACK "silent:silent,"
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#else
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#define SILENT_CALLBACK
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#endif
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#ifdef CONFIG_REGEX
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#define ENV_DOT_ESCAPE "\\"
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#else
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#define ENV_DOT_ESCAPE
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#endif
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#ifdef CONFIG_CMD_DNS
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#define DNS_CALLBACK "dnsip:dnsip,"
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#else
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#define DNS_CALLBACK
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#endif
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#ifdef CONFIG_NET
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#define NET_CALLBACKS \
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"bootfile:bootfile," \
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"ipaddr:ipaddr," \
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"gatewayip:gatewayip," \
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"netmask:netmask," \
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"serverip:serverip," \
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"nvlan:nvlan," \
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"vlan:vlan," \
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DNS_CALLBACK \
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"eth" ETHADDR_WILDCARD "addr:ethaddr,"
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#else
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#define NET_CALLBACKS
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#endif
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#ifdef CONFIG_IPV6
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#define NET6_CALLBACKS \
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"ip6addr:ip6addr," \
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"serverip6:serverip6," \
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"gatewayip6:gatewayip6,"
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#else
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#define NET6_CALLBACKS
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#endif
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#ifdef CONFIG_BOOTSTD_FULL
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#define BOOTSTD_CALLBACK \
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"bootmeths:bootmeths," \
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"bootargs:bootargs,"
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#else
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#define BOOTSTD_CALLBACK
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#endif
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#ifdef CONFIG_DFU
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#define DFU_CALLBACK "dfu_alt_info:dfu_alt_info,"
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#else
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#define DFU_CALLBACK
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#endif
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/*
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* This list of callback bindings is static, but may be overridden by defining
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* a new association in the ".callbacks" environment variable.
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*/
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#define ENV_CALLBACK_LIST_STATIC ENV_DOT_ESCAPE ENV_CALLBACK_VAR ":callbacks," \
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ENV_DOT_ESCAPE ENV_FLAGS_VAR ":flags," \
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"baudrate:baudrate," \
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NET_CALLBACKS \
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NET6_CALLBACKS \
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BOOTSTD_CALLBACK \
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DFU_CALLBACK \
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"loadaddr:loadaddr," \
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SILENT_CALLBACK \
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"stdin:console,stdout:console,stderr:console," \
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"serial#:serialno," \
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CFG_ENV_CALLBACK_LIST_STATIC
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#ifndef CONFIG_XPL_BUILD
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void env_callback_init(struct env_entry *var_entry);
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#else
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static inline void env_callback_init(struct env_entry *var_entry)
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{
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}
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#endif
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#endif /* __ENV_CALLBACK_H__ */
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