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u-boot/include/env_default.h

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SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-06 21:58:06 +00:00
/* SPDX-License-Identifier: GPL-2.0+ */
env: cosmetic: Consilidate the default env definition There used to be a huge structure duplicated 3 times in the source. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Tom Rini <trini@ti.com>
2012-10-12 08:48:51 +00:00
/*
* (C) Copyright 2000-2010
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Andreas Heppel <aheppel@sysgo.de>
*/
env: Add support for callbacks to environment vars Add support for per-variable callbacks to the "hashtable" functions. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> !!!fix comment in callback
2012-12-12 04:16:24 +00:00
#include <env_callback.h>
common: Drop linux/stringify.h from common header Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-10 17:40:09 +00:00
#include <linux/stringify.h>
env: Add support for callbacks to environment vars Add support for per-variable callbacks to the "hashtable" functions. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> !!!fix comment in callback
2012-12-12 04:16:24 +00:00
env: cosmetic: Consilidate the default env definition There used to be a huge structure duplicated 3 times in the source. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Tom Rini <trini@ti.com>
2012-10-12 08:48:51 +00:00
#ifdef DEFAULT_ENV_INSTANCE_EMBEDDED
env: Rename environment to embedded_environment The name 'environment' is widely used in U-Boot so is not a very useful name of a variable. Rename it to better indicate its purpose. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2019-08-01 15:47:03 +00:00
env_t embedded_environment __UBOOT_ENV_SECTION__(environment) = {
env: cosmetic: Consilidate the default env definition There used to be a huge structure duplicated 3 times in the source. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Tom Rini <trini@ti.com>
2012-10-12 08:48:51 +00:00
ENV_CRC, /* CRC Sum */
#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
1, /* Flags: valid */
#endif
{
#elif defined(DEFAULT_ENV_INSTANCE_STATIC)
static char default_environment[] = {
env: Allow to set default_environment[] from board code via compile option DEFAULT_ENV_IS_RW This change allows board code to modify default_environment[] array when compile option DEFAULT_ENV_IS_RW is specified in board config file. Some board default variables depend on runtime configuration which is not known at compile time. Therefore allow to set default_environment[] array as non-const and allow board code to modify it when it is needed. Signed-off-by: Pali Rohár <pali@kernel.org> Acked-by: Andre Heider <a.heider@gmail.com>
2020-12-23 11:21:28 +00:00
#elif defined(DEFAULT_ENV_IS_RW)
env: Always use char for default_environment Sometimes we use uchar and sometimes char for the default environment array. By always using char, we can get rid of some explicit casts. Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Simon Glass <sjg@chromium.org>
2021-10-22 13:47:24 +00:00
char default_environment[] = {
env: cosmetic: Consilidate the default env definition There used to be a huge structure duplicated 3 times in the source. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Tom Rini <trini@ti.com>
2012-10-12 08:48:51 +00:00
#else
env: Always use char for default_environment Sometimes we use uchar and sometimes char for the default environment array. By always using char, we can get rid of some explicit casts. Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Simon Glass <sjg@chromium.org>
2021-10-22 13:47:24 +00:00
const char default_environment[] = {
env: cosmetic: Consilidate the default env definition There used to be a huge structure duplicated 3 times in the source. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Tom Rini <trini@ti.com>
2012-10-12 08:48:51 +00:00
#endif
Allow providing default environment from file Modifying the default environment via CONFIG_EXTRA_ENV_SETTINGS is somewhat inflexible, partly because the cpp language does not allow appending to an existing macro. This prevents reuse of "environment fragments" for different boards, which in turn makes maintaining that environment consistently tedious and error-prone. This implements a Kconfig option for allowing one to define the entire default environment in an external file, which can then, for example, be generated programmatically as part of a Yocto recipe, or simply be kept in version control separately from the U-boot repository. Tested-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reviewed-by: Lukasz Majewski <lukma@denx.de>
2018-03-20 10:38:45 +00:00
#ifndef CONFIG_USE_DEFAULT_ENV_FILE
env: Add support for callbacks to environment vars Add support for per-variable callbacks to the "hashtable" functions. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> !!!fix comment in callback
2012-12-12 04:16:24 +00:00
#ifdef CONFIG_ENV_CALLBACK_LIST_DEFAULT
ENV_CALLBACK_VAR "=" CONFIG_ENV_CALLBACK_LIST_DEFAULT "\0"
#endif
env: Add environment variable flags Currently just validates variable types as decimal, hexidecimal, boolean, ip address, and mac address. If the entry is not found in the env ".flags", then look in the static one. This allows the env to override the static definitions, but prevents the need to have every definition in the environment distracting you. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2012-12-12 04:16:31 +00:00
#ifdef CONFIG_ENV_FLAGS_LIST_DEFAULT
ENV_FLAGS_VAR "=" CONFIG_ENV_FLAGS_LIST_DEFAULT "\0"
#endif
common: Move CONFIG_BOOTARGS to Kconfig Also introduce CONFIG_USE_BOOTARGS option so we can control if CONFIG_BOOTARGS defined at all. Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org> [trini: Resync r8a779[56]_ulcb, various ls10xx targets] Signed-off-by: Tom Rini <trini@konsulko.com>
2017-08-14 17:22:17 +00:00
#ifdef CONFIG_USE_BOOTARGS
env: cosmetic: Consilidate the default env definition There used to be a huge structure duplicated 3 times in the source. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Tom Rini <trini@ti.com>
2012-10-12 08:48:51 +00:00
"bootargs=" CONFIG_BOOTARGS "\0"
#endif
#ifdef CONFIG_BOOTCOMMAND
"bootcmd=" CONFIG_BOOTCOMMAND "\0"
#endif
#ifdef CONFIG_RAMBOOTCOMMAND
"ramboot=" CONFIG_RAMBOOTCOMMAND "\0"
#endif
#ifdef CONFIG_NFSBOOTCOMMAND
"nfsboot=" CONFIG_NFSBOOTCOMMAND "\0"
#endif
env: Include bootdelay in environment if negative The test for (CONFIG_BOOTDELAY >= 0) has been in U-Boot since the beginning, but the meaning of it has changed over time. Allow the default to be set for any value, including -ve ones. This allows (for example) CONFIG_ENV_IS_NOWHERE to have values for bootdelay in its compiled in environment. The only thing this changes is where the default for bootdelay can be fetched from; before this change you get a compiled in default, after you'll pull it from the default value in the environment, but both values will be the same. Also if there's a value set in the environment then that will take precedence (as before). Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
2018-07-05 12:38:15 +00:00
#if defined(CONFIG_BOOTDELAY)
env: cosmetic: Consilidate the default env definition There used to be a huge structure duplicated 3 times in the source. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Tom Rini <trini@ti.com>
2012-10-12 08:48:51 +00:00
"bootdelay=" __stringify(CONFIG_BOOTDELAY) "\0"
#endif
#if defined(CONFIG_BAUDRATE) && (CONFIG_BAUDRATE >= 0)
"baudrate=" __stringify(CONFIG_BAUDRATE) "\0"
#endif
#ifdef CONFIG_LOADS_ECHO
"loads_echo=" __stringify(CONFIG_LOADS_ECHO) "\0"
#endif
#ifdef CONFIG_ETHPRIME
"ethprime=" CONFIG_ETHPRIME "\0"
#endif
#ifdef CONFIG_IPADDR
"ipaddr=" __stringify(CONFIG_IPADDR) "\0"
#endif
#ifdef CONFIG_SERVERIP
"serverip=" __stringify(CONFIG_SERVERIP) "\0"
#endif
#ifdef CONFIG_SYS_AUTOLOAD
"autoload=" CONFIG_SYS_AUTOLOAD "\0"
#endif
#ifdef CONFIG_PREBOOT
"preboot=" CONFIG_PREBOOT "\0"
#endif
#ifdef CONFIG_ROOTPATH
"rootpath=" CONFIG_ROOTPATH "\0"
#endif
#ifdef CONFIG_GATEWAYIP
"gatewayip=" __stringify(CONFIG_GATEWAYIP) "\0"
#endif
#ifdef CONFIG_NETMASK
"netmask=" __stringify(CONFIG_NETMASK) "\0"
#endif
#ifdef CONFIG_HOSTNAME
treewide: Convert CONFIG_HOSTNAME to a string option CONFIG_HOSTNAME is defined as a "plain" preprocessor string, but every use is couched by __stringify(...). Hence, convert it to a proper string option. Signed-off-by: Mario Six <mario.six@gdsys.cc>
2018-03-28 12:38:20 +00:00
"hostname=" CONFIG_HOSTNAME "\0"
env: cosmetic: Consilidate the default env definition There used to be a huge structure duplicated 3 times in the source. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Tom Rini <trini@ti.com>
2012-10-12 08:48:51 +00:00
#endif
#ifdef CONFIG_BOOTFILE
"bootfile=" CONFIG_BOOTFILE "\0"
#endif
global: Convert CONFIG_LOADADDR to CONFIG_SYS_LOADADDR - In most of the codebase, we reference CONFIG_SYS_LOAD_ADDR and not CONFIG_LOADADDR. - Generally, CONFIG_SYS_LOADADDR is set to CONFIG_LOADADDR and then as noted, we use CONFIG_SYS_LOADADDR. Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-23 14:25:30 +00:00
#ifdef CONFIG_SYS_LOAD_ADDR
"loadaddr=" __stringify(CONFIG_SYS_LOAD_ADDR)"\0"
env: cosmetic: Consilidate the default env definition There used to be a huge structure duplicated 3 times in the source. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Tom Rini <trini@ti.com>
2012-10-12 08:48:51 +00:00
#endif
#if defined(CONFIG_PCI_BOOTDELAY) && (CONFIG_PCI_BOOTDELAY > 0)
"pcidelay=" __stringify(CONFIG_PCI_BOOTDELAY)"\0"
#endif
#ifdef CONFIG_ENV_VARS_UBOOT_CONFIG
"arch=" CONFIG_SYS_ARCH "\0"
env: avoid build error for boards without CONFIG_SYS_{CPU, BOARD} If CONFIG_ENV_VARS_UBOOT_CONFIG is enabled (it is by distro), this code causes build error for boards without CONFIG_SYS_{CPU,_BOARD}. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-06-17 05:24:07 +00:00
#ifdef CONFIG_SYS_CPU
env: cosmetic: Consilidate the default env definition There used to be a huge structure duplicated 3 times in the source. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Tom Rini <trini@ti.com>
2012-10-12 08:48:51 +00:00
"cpu=" CONFIG_SYS_CPU "\0"
env: avoid build error for boards without CONFIG_SYS_{CPU, BOARD} If CONFIG_ENV_VARS_UBOOT_CONFIG is enabled (it is by distro), this code causes build error for boards without CONFIG_SYS_{CPU,_BOARD}. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-06-17 05:24:07 +00:00
#endif
#ifdef CONFIG_SYS_BOARD
env: cosmetic: Consilidate the default env definition There used to be a huge structure duplicated 3 times in the source. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Tom Rini <trini@ti.com>
2012-10-12 08:48:51 +00:00
"board=" CONFIG_SYS_BOARD "\0"
Add board_name to CONFIG_ENV_VARS_UBOOT_CONFIG CONFIG_ENV_VARS_UBOOT_CONFIG creates environment variables indicating which configuration U-Boot was built for. Some U-Boot binaries run on multiple boards, and hence this information may not uniquley describe the HW that U-Boot is actually running on. Another patch introduces environment variable board_name to represent that. In order to avoid scripts having to check $board_name, use it if set, and then fall back to using $board, make CONFIG_ENV_VARS_UBOOT_CONFIG also set a default value for board_name, so that variable is always available. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2012-10-31 11:17:28 +00:00
"board_name=" CONFIG_SYS_BOARD "\0"
env: avoid build error for boards without CONFIG_SYS_{CPU, BOARD} If CONFIG_ENV_VARS_UBOOT_CONFIG is enabled (it is by distro), this code causes build error for boards without CONFIG_SYS_{CPU,_BOARD}. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-06-17 05:24:07 +00:00
#endif
env: cosmetic: Consilidate the default env definition There used to be a huge structure duplicated 3 times in the source. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Tom Rini <trini@ti.com>
2012-10-12 08:48:51 +00:00
#ifdef CONFIG_SYS_VENDOR
"vendor=" CONFIG_SYS_VENDOR "\0"
#endif
#ifdef CONFIG_SYS_SOC
"soc=" CONFIG_SYS_SOC "\0"
#endif
env: allow environment to be amended from control dtb It can be useful to use the same U-Boot binary for multiple purposes, say the normal one, one for developers that allow breaking into the U-Boot shell, and one for use during bootstrapping which runs a special-purpose bootcmd. Or one can have several board variants that can share almost all boot logic, but just needs a few tweaks in the variables used by the boot script. To that end, allow the control dtb to contain a /config/enviroment node (or whatever one puts in fdt_env_path variable), whose property/value pairs are used to update the run-time environment after it has been loaded from its persistent location. The indirection via fdt_env_path is for maximum flexibility - for example, should the user wish (or board logic dictate) that the values in the DTB should no longer be applied, one simply needs to delete the fdt_env_path variable; that can even be done automatically by including a fdt_env_path = ""; property in the DTB node. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2021-04-21 09:06:54 +00:00
#ifdef CONFIG_ENV_IMPORT_FDT
"env_fdt_path=" CONFIG_ENV_FDT_PATH "\0"
#endif
env: cosmetic: Consilidate the default env definition There used to be a huge structure duplicated 3 times in the source. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Tom Rini <trini@ti.com>
2012-10-12 08:48:51 +00:00
#endif
Add BOOTCOUNT_BOOTLIMIT to set reboot limit Add ability to set environment bootlimit from Kconfig Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
2018-07-21 20:25:32 +00:00
#if defined(CONFIG_BOOTCOUNT_BOOTLIMIT) && (CONFIG_BOOTCOUNT_BOOTLIMIT > 0)
"bootlimit=" __stringify(CONFIG_BOOTCOUNT_BOOTLIMIT)"\0"
#endif
env: cosmetic: Consilidate the default env definition There used to be a huge structure duplicated 3 times in the source. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Tom Rini <trini@ti.com>
2012-10-12 08:48:51 +00:00
#ifdef CONFIG_EXTRA_ENV_SETTINGS
CONFIG_EXTRA_ENV_SETTINGS
#endif
"\0"
Allow providing default environment from file Modifying the default environment via CONFIG_EXTRA_ENV_SETTINGS is somewhat inflexible, partly because the cpp language does not allow appending to an existing macro. This prevents reuse of "environment fragments" for different boards, which in turn makes maintaining that environment consistently tedious and error-prone. This implements a Kconfig option for allowing one to define the entire default environment in an external file, which can then, for example, be generated programmatically as part of a Yocto recipe, or simply be kept in version control separately from the U-boot repository. Tested-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reviewed-by: Lukasz Majewski <lukma@denx.de>
2018-03-20 10:38:45 +00:00
#else /* CONFIG_USE_DEFAULT_ENV_FILE */
#include "generated/defaultenv_autogenerated.h"
#endif
env: cosmetic: Consilidate the default env definition There used to be a huge structure duplicated 3 times in the source. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Tom Rini <trini@ti.com>
2012-10-12 08:48:51 +00:00
#ifdef DEFAULT_ENV_INSTANCE_EMBEDDED
}
#endif
};
env: Use static_assert() to check if default_environment is too large Check sizeof(default_environment) against ENV_SIZE in a static_assert() instead of runtime. Only check if !USE_HOSTCC (for in fw_env tool ENV_SIZE expands to a variable, and cannot be checked statically) nad !DEFAULT_ENV_INSTANCE_EMBEDDED, for in that case the default_environment variable is not set. Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Simon Glass <sjg@chromium.org>
2021-10-22 13:47:25 +00:00
#if !defined(USE_HOSTCC) && !defined(DEFAULT_ENV_INSTANCE_EMBEDDED)
#include <env_internal.h>
static_assert(sizeof(default_environment) <= ENV_SIZE,
"Default environment is too large");
#endif
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