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* New implementation for internal handling of environment variables.Wolfgang Denk2010-09-19-69/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Motivation: * Old environment code used a pessimizing implementation: - variable lookup used linear search => slow - changed/added variables were added at the end, i. e. most frequently used variables had the slowest access times => slow - each setenv() would calculate the CRC32 checksum over the whole environment block => slow * "redundant" envrionment was locked down to two copies * No easy way to implement features like "reset to factory defaults", or to select one out of several pre-defined (previously saved) sets of environment settings ("profiles") * No easy way to import or export environment settings ====================================================================== API Changes: - Variable names starting with '#' are no longer allowed I didn't find any such variable names being used; it is highly recommended to follow standard conventions and start variable names with an alphanumeric character - "printenv" will now print a backslash at the end of all but the last lines of a multi-line variable value. Multi-line variables have never been formally defined, allthough there is no reason not to use them. Now we define rules how to deal with them, allowing for import and export. - Function forceenv() and the related code in saveenv() was removed. At the moment this is causing build problems for the only user of this code (schmoogie - which has no entry in MAINTAINERS); may be fixed later by implementing the "env set -f" feature. Inconsistencies: - "printenv" will '\\'-escape the '\n' in multi-line variables, while "printenv var" will not do that. ====================================================================== Advantages: - "printenv" output much better readable (sorted) - faster! - extendable (additional variable properties can be added) - new, powerful features like "factory reset" or easy switching between several different environment settings ("profiles") Disadvantages: - Image size grows by typically 5...7 KiB (might shrink a bit again on systems with redundant environment with a following patch series) ====================================================================== Implemented: - env command with subcommands: - env print [arg ...] same as "printenv": print environment - env set [-f] name [arg ...] same as "setenv": set (and delete) environment variables ["-f" - force setting even for read-only variables - not implemented yet.] - end delete [-f] name not implemented yet ["-f" - force delete even for read-only variables] - env save same as "saveenv": save environment - env export [-t | -b | -c] addr [size] export internal representation (hash table) in formats usable for persistent storage or processing: -t: export as text format; if size is given, data will be padded with '\0' bytes; if not, one terminating '\0' will be added (which is included in the "filesize" setting so you can for exmple copy this to flash and keep the termination). -b: export as binary format (name=value pairs separated by '\0', list end marked by double "\0\0") -c: export as checksum protected environment format as used for example by "saveenv" command addr: memory address where environment gets stored size: size of output buffer With "-c" and size is NOT given, then the export command will format the data as currently used for the persistent storage, i. e. it will use CONFIG_ENV_SECT_SIZE as output block size and prepend a valid CRC32 checksum and, in case of resundant environment, a "current" redundancy flag. If size is given, this value will be used instead of CONFIG_ENV_SECT_SIZE; again, CRC32 checksum and redundancy flag will be inserted. With "-b" and "-t", always only the real data (including a terminating '\0' byte) will be written; here the optional size argument will be used to make sure not to overflow the user provided buffer; the command will abort if the size is not sufficient. Any remainign space will be '\0' padded. On successful return, the variable "filesize" will be set. Note that filesize includes the trailing/terminating '\0' byte(s). Usage szenario: create a text snapshot/backup of the current settings: => env export -t 100000 => era ${backup_addr} +${filesize} => cp.b 100000 ${backup_addr} ${filesize} Re-import this snapshot, deleting all other settings: => env import -d -t ${backup_addr} - env import [-d] [-t | -b | -c] addr [size] import external format (text or binary) into hash table, optionally deleting existing values: -d: delete existing environment before importing; otherwise overwrite / append to existion definitions -t: assume text format; either "size" must be given or the text data must be '\0' terminated -b: assume binary format ('\0' separated, "\0\0" terminated) -c: assume checksum protected environment format addr: memory address to read from size: length of input data; if missing, proper '\0' termination is mandatory - env default -f reset default environment: drop all environment settings and load default environment - env ask name [message] [size] same as "askenv": ask for environment variable - env edit name same as "editenv": edit environment variable - env run same as "run": run commands in an environment variable ====================================================================== TODO: - drop default env as implemented now; provide a text file based initialization instead (eventually using several text files to incrementally build it from common blocks) and a tool to convert it into a binary blob / object file. - It would be nice if we could add wildcard support for environment variables; this is needed for variable name auto-completion, but it would also be nice to be able to say "printenv ip*" or "printenv *addr*" - Some boards don't link any more due to the grown code size: DU405, canyonlands, sequoia, socrates. => cc: Matthias Fuchs <matthias.fuchs@esd-electronics.com>, Stefan Roese <sr@denx.de>, Heiko Schocher <hs@denx.de> - Dropping forceenv() causes build problems on schmoogie => cc: Sergey Kubushyn <ksi@koi8.net> - Build tested on PPC and ARM only; runtime tested with NOR and NAND flash only => needs testing!! Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Matthias Fuchs <matthias.fuchs@esd-electronics.com>, Cc: Stefan Roese <sr@denx.de>, Cc: Heiko Schocher <hs@denx.de> Cc: Sergey Kubushyn <ksi@koi8.net>
* Make getenv() work before relocation.Wolfgang Denk2010-09-19-28/+33
| | | | | | | | | | | | | | | | | | | So far, getenv() would work before relocation is most cases, even though it was not intended to be used that way. When switching to a hash table based implementation, this would break a number of boards. For convenience, we make getenv() check if it's running before relocation and, if so, use getenv_f() internally. Note that this is limited to simple cases, as we use a small static buffer (32 bytes) in the global data for this purpose. For this reason, it is also not a good idea to convert all current uses of getenv_f() into getenv() - some of the existing use cases need to be able to deal with longer variable values, so getenv_f() is still needed and recommended for use before relocation. Signed-off-by: Wolfgang Denk <wd@denx.de>
* Cleanup use of CONFIG_SYS_SRAM_BASE and CONFIG_SYS_SRAM_SIZEWolfgang Denk2010-09-19-6/+3
| | | | | | | | | | | | | | | | | | | | | | Traditionally many boards used local definitions for SRAM base address and size (like SRAM_BASE, SRAM_LEN and/or SRAM_SIZE), while the (now) "official" names are CONFIG_SYS_SRAM_BASE and CONFIG_SYS_SRAM_SIZE. The corresponding code in arch/powerpc/lib/board.c was board specific, and has never actually been maintained well. Replace this by feature- specific code and adapt the boards that actually use this. NOTE: there is still a ton of boards using the old #defines, which therefor contain incorrect values in bi_sramstart and bi_sramsize. All respective board maintainers are requested to clean up their respective configurations. Thanks. Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Josef Wagner <Wagner@Microsys.de> Cc: Stefan Roese <sr@denx.de> Cc: Heiko Schocher <hs@denx.de> Cc: Wolfgang Denk <wd@denx.de>
* Prepare v2010.09-rc2v2010.09-rc2Wolfgang Denk2010-09-19-1/+1
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* Save environment data to mmc.Terry Lv2010-09-19-11/+21
| | | | | | | | This patch is to save environment data to mmc card. It uses interfaces defined in generic mmc. Signed-off-by: Terry Lv <r65388@freescale.com> Acked-by: Stefano Babic <sbabic@denx.de>
* ARM: Update ARM mach-typesThomas Weber2010-09-18-4/+1226
| | | | | | This patch updates the mach-types.h based on the latest linux kernel Signed-off-by: Thomas Weber <weber@corscience.de>
* x86: Fix x86 Cold BootGraeme Russ2010-09-13-0/+5
| | | | | | Commit 077e1958ca4afe12d88043b123ded058c51b89f7 broke the ability of the x86 port to boot from a cold-reset by removing the initial IDT. Re- instate the initial IDT to allow cold-booting of x86 boards
* x86: Fix do_go_exec() - const argv[]Graeme Russ2010-09-13-5/+20
| | | | | | | | | | | Commit 54841ab50c20d6fa6c9cc3eb826989da3a22d934 made the argv parameter to do_go_exec() const but did not allow for the fact that argv[-1] is set to point to the global data structure and relies on argv being non- const. With this patch, do_go_exec() creates a new copy of the argv array with an extra element to store global data pointer rather than simply clobbering an arbitrary memory location.
* Prepare v2010.09-rc1v2010.09-rc1Wolfgang Denk2010-09-10-7/+0
| | | | | | Coding style cleanup. Signed-off-by: Wolfgang Denk <wd@denx.de>
* Merge branch 'master' of git://git.denx.de/u-boot-armWolfgang Denk2010-09-09-484/+2626
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| * Merge branch 'master' of git://git.denx.de/u-boot-tiWolfgang Denk2010-09-09-296/+754
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| | * ARMV7: OMAP3: Remove erroneous hard coded sdram setup for 128MB/bankSteve Sakoman2010-09-08-22/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | Upcoming Beagle and Overo revisions use POP memory with 256MB or 512MB per bank. This patches uses the SDRC settings from x-load or the config header to set up timing properly. Signed-off-by: Steve Sakoman <steve@sakoman.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
| | * ARMV7: OMAP3: Fix broken reset command on OMAP36XX/37XX and OMAP4Steve Sakoman2010-09-08-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | Using the reset command on OMAP36XX/37XX and OMAP4 caused a hang. This patch uses the reset bit appropriate for each CPU architecture. Signed-off-by: Steve Sakoman <steve@sakoman.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
| | * ARMV7: OMAP3: Apply Cortex-A8 errata workarounds only on affected revisionsMans Rullgard2010-09-08-3/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The workarounds for errata 621766 and 725233 should only be applied on affected Cortex-A8 revisions. Recent chips use r3px cores where these have been fixed. Signed-off-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Steve Sakoman <steve@sakoman.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
| | * ARMV7: OMAP3: Convert setup_auxcr() to pure asmMans Rullgard2010-09-08-35/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This function consists entirely of inline asm statements, so writing it directly in a .S file is simpler. Additionally, the inline asm is not safe as is, since registers are not guaranteed to be preserved between asm() statements. Signed-off-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Steve Sakoman <steve@sakoman.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
| | * ARMV7: OMAP3: Fix and clean up L2 cache enable/disable functionsMans Rullgard2010-09-08-54/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On OMAP34xx ES1.0, the L2 enable bit can only be set in secure mode, so an SMC call to the ROM monitor is required. On later versions, and on newer devices, this bit is banked and we can set it directly. The code checked only the ES revision of the chip, and hence incorrectly used the ROM call on ES1.0 versions of other devices. This patch adds a check for chip family as well as revision, and also removes some code duplication between the enable and disable functions. Signed-off-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Steve Sakoman <steve@sakoman.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
| | * ARMV7: OMAP3: Add clock setup for OMAP36XX/37XXSteve Sakoman2010-09-08-147/+515
| | | | | | | | | | | | | | | | | | | | | | | | This patch configures clocks properly when a 36XX/37XX processor is detected. Signed-off-by: Steve Sakoman <steve@sakoman.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
| | * ARMV7: OMAP3: Update CPU type detection for AM35XX/OMAP36XX/37XXSteve Sakoman2010-09-08-34/+161
| | | | | | | | | | | | | | | | | | | | | | | | TI has added new processors to the OMAP3 family. This patch enhances the code in sysinfo.c to detect which family member is present. Signed-off-by: Steve Sakoman <steve@sakoman.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
| | * ARMV7: OMAP: Move syslib.c to omap-common since it can be shared by OMAP3 ↵Steve Sakoman2010-09-08-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | and OMAP4 The functions in syslib.c can be shared, so this patch moves it from cpu/omap3 to cpu/omap-common Signed-off-by: Steve Sakoman <steve@sakoman.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
| * | Merge branch 'avr32' of git://git.denx.de/u-boot-atmelWolfgang Denk2010-09-08-12/+165
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| | * | avr32: Add simple paging supportHaavard Skinnemoen2010-09-03-11/+163
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the MMU hardware to set up 1:1 mappings between physical and virtual addresses. This allows us to bypass the cache when accessing the flash without having to do any physical-to-virtual address mapping in the CFI driver. The virtual memory mappings are defined at compile time through a sorted array of virtual memory range objects. When a TLB miss exception happens, the exception handler does a binary search through the array until it finds a matching entry and loads it into the TLB. The u-boot image itself is covered by a fixed TLB entry which is never replaced. This makes the 'saveenv' command work again on ATNGW100 and other boards using the CFI driver, hopefully without breaking any rules. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
| | * | avr32: Print unrelocated PC on exceptionHaavard Skinnemoen2010-09-03-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In addition to the real PC value, also print the value of PC after subtracting the relocation offset. This value will match the address in the ELF file so it's much easier to figure out where things went wrong. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
| * | | Merge branch 'at91' of git://git.denx.de/u-boot-atmelWolfgang Denk2010-09-08-29/+525
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| | * | | at91_pit: Fix AT91_PIT_MR_PIV_MASK macroAlexander Stein2010-09-03-1/+1
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
| | * | | AT91: add option to enable pullups in at91sam9260_devices.cReinhard Meyer2010-09-03-10/+25
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
| | * | | AT91: reset.c: fix comments, add optionReinhard Meyer2010-09-03-10/+11
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
| | * | | AT91: fix at91sam9260.h for AT91SAM9XEReinhard Meyer2010-09-03-4/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Define the different location of the GPBRs for the 9XE Define the proper CPU Name Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
| | * | | AT91SAM9XE: add embedded flash supportReinhard Meyer2010-09-03-0/+364
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
| | * | | AT91: add RTT and GPBR based RTCReinhard Meyer2010-09-03-0/+81
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
| | * | | AT91: MCI: add SD/MMC driver using mmc frameworkReinhard Meyer2010-09-03-0/+28
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
| | * | | AT91 Fix: return value of get_tbclkJens Scharsig2010-08-31-4/+1
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | * Fix: return value of get_tbclk * this fixes issue with prematurely restart/retry, if BOOT_RETRY_TIMEOUT is used Signed-off-by: Jens Scharsig <js_at_ng@scharsoft.de>
| * | | Merge branch 'master' of git://git.denx.de/u-boot-samsungWolfgang Denk2010-09-08-144/+229
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| | * | | ARMV7: S5P: rename the member of gpio structureMinkyu Kang2010-08-30-86/+86
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Typically we declare the name of gpio structure to "gpio", so it was duplicated around the name. (e.g: gpio->gpio_a) This patch modified the naming that is removing "gpio_". Signed-off-by: Minkyu Kang <mk7.kang@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
| | * | | ARMV7: S5P: separate the peripheral clocksMinkyu Kang2010-08-30-6/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Because of peripheral devices can select clock sources, separate the peripheral clocks. (pwm, uart and so on) It just return the pclk at s5pc1xx SoC, but s5pc210 SoC must be calculated by own clock register setting. Signed-off-by: Minkyu Kang <mk7.kang@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
| | * | | ARMV7: S5P: fix the macro at samsung_get_base functionMinkyu Kang2010-08-26-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | New line is unnecessary at last line of macro. Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
| | * | | S5P: mmc: fix the mmc offsetMinkyu Kang2010-08-23-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixed the size of mmc structure. Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
| | * | | ARMV7: S5P: rename from s5pc1xx to s5pMinkyu Kang2010-08-23-22/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Because of these are common files around s5p Socs, rename from s5pc1xx to s5p. And getting cpu_id is SoC specific, so move to SoC's header file. Signed-off-by: Minkyu Kang <mk7.kang@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
| | * | | ARMV7: S5P: make s5p-common for sharing the code between s5pc1xx and s5pc2xxMinkyu Kang2010-08-23-2/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds basic support for s5pc210. s5p-common will be used by all of s5p SoCs. Signed-off-by: Minkyu Kang <mk7.kang@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
| | * | | S5P: Use accessor functions instead of SoC specific defines to access the ↵Minkyu Kang2010-08-17-29/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | base address This patch is intended to prepare the other S5P SoC. (s5pc210) If use SoC specific defines then can't share with other SoC. So, make the accessor functions for access the base address by common way. Signed-off-by: Minkyu Kang <mk7.kang@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
| * | | | Merge branch 'master' of git://git.denx.de/u-boot-marvellWolfgang Denk2010-09-07-3/+3
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| | * | | | orion5x: fix comment-in-comment typo in cpu.hAlbert Aribaud2010-08-27-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Albert Aribaud <albert.aribaud@free.fr>
| | * | | | Kirkwood: bugfix: window size (mis)calculationPrafulla Wadaskar2010-08-26-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixed kw_winctrl_calcsize() off-by-1 bug which caused mapping windows size to be cut by half. This corrected all windows address configuration Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
| | * | | | Orion5x: bugfix: window size (mis)calculationAlbert Aribaud2010-08-26-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix orion5x_winctrl_calcsize() off-by-1 bug which caused mapping windows to be cut by half. This afected all windows including NOR flash (causing half the flash to be unaccessible) but DRAM was and still is fine as its size is determined otherwise. Signed-off-by: Albert Aribaud <albert.aribaud@free.fr>
| * | | | | Merge branch 'master' of /home/wd/git/u-boot/masterWolfgang Denk2010-09-07-157/+76
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| * | | | Merge branch 'master' of /home/wd/git/u-boot/masterWolfgang Denk2010-08-18-25/+1179
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| * | | | Merge branch 'master' of git://git.denx.de/u-boot-tiWolfgang Denk2010-08-12-27/+27
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| * | | | | ARM: Add support for MB86R0x SoCsMatthias Weisser2010-08-10-0/+950
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Matthias Weisser <weisserm@arcor.de>
* | | | | | bedbug_860.c, bedbug_603e.c: Fix return type to silence compile warnings.Wolfgang Denk2010-09-08-8/+16
| |_|_|/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 47e26b1b "cmd_usage(): simplify return code handling" caused the following compile warnings: bedbug_860.c: In function 'bedbug860_do_break': bedbug_860.c:73: warning: 'return' with a value, in function returning void bedbug_860.c:121: warning: 'return' with a value, in function returning void Fix the return type. Actually these files could need some cleanup - commands should return proper error codes, and there are coding style issues. => To be fixed later. Signed-off-by: Wolfgang Denk <wd@denx.de>
* | | | | Merge branch 'master' of git://git.denx.de/u-boot-ppc4xxWolfgang Denk2010-09-07-9/+23
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| * | | | | ppc4xx: Invalidate d-cache when used as init-ramStefan Roese2010-09-03-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to invalidate the data cache after it has been used as init-ram. This problem was detected on the lwmon5 update. Signed-off-by: Stefan Roese <sr@denx.de>
generated by cgit v1.1 at 2024-12-18 02:39:05 +0000