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2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
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>
2017-09-26mtd: cfi: Add support for status register pollingMarek Vasut
The status register is optional in the AMD command sets, but it's presence can be checked by reading out CFI table entry 0xc bit 0. If the register is present, prefer using it's bit 7 to determine if the flash is busy over reading the flash ; this is needed ie. on Hyperflash memories. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Signed-off-by: Stefan Roese <sr@denx.de>
2017-08-22mtd: cfi: staticize functionsMarek Vasut
Staticize a few functions and variables which are no longer exposed. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Stefan Roese <sr@denx.de> Signed-off-by: Stefan Roese <sr@denx.de>
2015-10-27cfi_flash: use specific width types for cwordRyan Harkin
This patch changes the cword union to use specific length types that are architecture indepented. This patch also renames the members of the cword union to represent their usage, i.e.: c -> w8 s -> w16 l -> w32 ll -> w64 Where "w" stands for "width" in bits. I discovered this problem when enabling CFI flash on vexpress64. cword.l was an unsigned long int, but it was intended to be 32 bits wide. Unfortunately, it's 64-bits wide on a 64-bit system, meaning that a 64-bit system fails when attempting to use 32-bit wide CFI flash parts. Similar problems also existed with the other cword sizes. Signed-off-by: Ryan Harkin <ryan.harkin@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Stefan Roese <sr@denx.de>
2014-09-16kbuild: force to define __UBOOT__ in all the C sourcesMasahiro Yamada
U-Boot has imported various source files from other projects, mostly Linux. Something like #ifdef __UBOOT__ [ modification for U-Boot ] #else [ original code ] #endif is an often used strategy for clarification of adjusted parts, that is, easier re-sync in future. Instead of defining __UBOOT__ in each source file, passing it from the top Makefile would be easier. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Marek Vasut <marex@denx.de> Acked-by: Heiko Schocher <hs@denx.de>
2014-08-25mtd,ubi,ubifs: sync with linux v3.15Heiko Schocher
snyc with linux v3.15: commit 1860e379875dfe7271c649058aeddffe5afd9d0d Author: Linus Torvalds <torvalds@linux-foundation.org> Date: Sun Jun 8 11:19:54 2014 -0700 Linux 3.15 Signed-off-by: Heiko Schocher <hs@denx.de> Cc: Scott Wood <scottwood@freescale.com> Cc: Tom Rini <trini@ti.com>
2014-08-25mtd, ubi, ubifs: resync with Linux-3.14Heiko Schocher
resync ubi subsystem with linux: commit 455c6fdbd219161bd09b1165f11699d6d73de11c Author: Linus Torvalds <torvalds@linux-foundation.org> Date: Sun Mar 30 20:40:15 2014 -0700 Linux 3.14 A nice side effect of this, is we introduce UBI Fastmap support to U-Boot. Signed-off-by: Heiko Schocher <hs@denx.de> Signed-off-by: Tom Rini <trini@ti.com> Cc: Marek Vasut <marex@denx.de> Cc: Sergey Lapin <slapin@ossfans.org> Cc: Scott Wood <scottwood@freescale.com> Cc: Joerg Krause <jkrause@posteo.de>
2013-11-21mtd: move & update nand_ecclayout structure (plus board changes)Prabhakar Kushwaha
nand_ecclayout is present in mtd.h at Linux. Move this structure to mtd.h to comply with Linux. Also, increase the ecc placement locations to 640 to suport device having writesize/oobsize of 8KB/640B. This means that the maximum oobsize has gone up to 640 bytes and consequently the maximum ecc placement locations have also gone up to 640. Changes from Prabhabkar's version (squashed into one patch to preserve bisectability): - Added _LARGE to MTD_MAX_*_ENTRIES This makes the names match current Linux source, and resolves a conflict between http://patchwork.ozlabs.org/patch/280488/ and http://patchwork.ozlabs.org/patch/284513/ The former was posted first and is closer to matching Linux, but unlike Linux it does not add _LARGE to the names. The second adds _LARGE to one of the names, and depends on it in a subsequent patch (http://patchwork.ozlabs.org/patch/284512/). - Made max oobfree/eccpos configurable, and used this on tricorder, alpr, ASH405, T4160QDS, and T4240QDS (these boards failed to build for me without doing so, due to a size increase). On tricorder SPL, this saves 2576 bytes (and makes the SPL build again) versus the new default of 640 eccpos and 32 oobfree, and saves 336 bytes versus the old default of 128 eccpos and 8 oobfree. Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> CC: Vipin Kumar <vipin.kumar@st.com> [scottwood@freescale.com: changes as described above] Signed-off-by: Scott Wood <scottwood@freescale.com> Cc: Thomas Weber <weber@corscience.de> Cc: Matthias Fuchs <matthias.fuchs@esd-electronics.com> Cc: Stefan Roese <sr@denx.de> Cc: York Sun <yorksun@freescale.com> Cc: Tom Rini <trini@ti.com> Reviewed-by: Stefan Roese <sr@denx.de>
2013-07-30cfi_flash: Add prototypes of overridable functionsMasahiro Yamada
This commit adds some prototypes into include/mtd/cfi_flash.h. These functions are defined with a weak attribute in drivers/mtd/cfi_flash.c. This means they can be overrided by board-specific ones if necessary. When defining such functions under board/ directory or somewhere, cfi_flash.h should be included. This makes sure that board-specfic cfi functions are defined in a correct prototype. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Stefan Roese <sr@denx.de>
2013-07-24Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
2013-05-31Merge branch 'master' of git://git.denx.de/u-boot-nand-flashTom Rini
2013-05-31mtd: resync with Linux-3.7.1Sergey Lapin
This patch is essentially an update of u-boot MTD subsystem to the state of Linux-3.7.1 with exclusion of some bits: - the update is concentrated on NAND, no onenand or CFI/NOR/SPI flashes interfaces are updated EXCEPT for API changes. - new large NAND chips support is there, though some updates have got in Linux-3.8.-rc1, (which will follow on top of this patch). To produce this update I used tag v3.7.1 of linux-stable repository. The update was made using application of relevant patches, with changes relevant to U-Boot-only stuff sticked together to keep bisectability. Then all changes were grouped together to this patch. Signed-off-by: Sergey Lapin <slapin@ossfans.org> [scottwood@freescale.com: some eccstrength and build fixes] Signed-off-by: Scott Wood <scottwood@freescale.com>
2013-05-23cfi_flash: Fix unaligned accesses to cfi_qry structureAndrew Gabbasov
Packed structure cfi_qry contains unaligned 16- and 32-bits members, accessing which causes problems when cfi_flash driver is compiled with -munaligned-access option: flash initialization hangs, probably due to data error. Since the structure is supposed to replicate the actual data layout in CFI Flash chips, the alignment issue can't be fixed in the structure. So, unaligned fields need using of explicit unaligned access macros. Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com> Reviewed-By: Albert ARIBAUD <albert.u.boot@aribaud.net> Signed-off-by: Stefan Roese <sr@denx.de>
2013-04-12Revert "mtd: cfi_flash: Fix CFI flash driver for 8-bit bus support"Stefan Roese
This reverts commit 239cb9d904cfa8ab50d840a47b3306189d695c75. Signed-off-by: Stefan Roese <sr@denx.de>
2013-04-02mtd: cfi_flash: Fix CFI flash driver for 8-bit bus supportaaron.williams@caviumnetworks.com
This commit is based on that patch from aaron.williams@caviumnetworks.com with same commit title. pulled the same code changes into current u-boot tree. http://patchwork.ozlabs.org/patch/140863/ http://lists.denx.de/pipermail/u-boot/2011-April/089606.html This patch corrects the addresses used when working with Spansion/AMD FLASH chips. Addressing for 8 and 16 bits is almost identical except in the 16-bit case the LSB of the address is always 0. The confusion arose because the addresses in the datasheet for 16-bit mode are word addresses but this code assumed it was byte addresses. I have only been able to test this on our Octeon boards which use either an 8-bit or 16-bit bus. I have not tested the case where there's an 8-bit part on a 16-bit bus. This patch also adds some delays as suggested by Spansion. If a part can be both 8 and 16-bits, it forces it to work in 8-bit mode if an 8-bit bus is detected. Apart from the pulled changes, fixed few minor code cleanups and tested on 256M29EW, 512M29EW flashes. Before this fix: --------------- Bank # 1: CFI conformant flash (8 x 8) Size: 64 MB in 512 Sectors AMD Standard command set, Manufacturer ID: 0xFF, Device ID: 0xFF Erase timeout: 4096 ms, write timeout: 2 ms Buffer write timeout: 5 ms, buffer size: 1024 bytes After this fix: -------------- Bank # 1: CFI conformant flash (8 x 8) Size: 64 MB in 512 Sectors AMD Standard command set, Manufacturer ID: 0x89, Device ID: 0x7E2301 Erase timeout: 4096 ms, write timeout: 2 ms Buffer write timeout: 5 ms, buffer size: 1024 bytes Signed-off-by: Aaron Williams <aaron.williams@caviumnetworks.com> Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> Tested-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
2012-08-13cfi_flash: add support for Spansion flash PPB sector protectionAnatolij Gustschin
Erasing flash sectors protected with persistent protection bit (PPB) mechanism on Spansion flash chips doesn't work. Add sector protection status checking and sector lock and unlock commands to fix this. Signed-off-by: Anatolij Gustschin <agust@denx.de> Cc: Stefan Roese <sr@denx.de> Signed-off-by: Stefan Roese <sr@denx.de>
2010-12-17cfi_flash: Add optional config register write to cfi-detectionStefan Roese
This patch adds the possibility to (optinally) write to the flash configuration register. The Intel style CFI chips support such a register that can be used to configure the operation mode to a non-default value. This method will be used by the t3corp board, which needs to configure the DS617 Xilinx flash for async read mode. Signed-off-by: Stefan Roese <sr@denx.de>
2010-09-20cfi_flash: Simplify dynamic flash bank number detectionStefan Roese
This patch simplifies the use of CONFIG_SYS_MAX_FLASH_BANKS_DETECT. By moving these optional variables and defines into the common code, board specific code is minimized. Currently only the following board use this feature: APC405, IDS8247, TQM834x And IDS8247 doesn't seem to really need this feature, since its not updating the bank number variable at all. So this patch removes the definition of CONFIG_SYS_MAX_FLASH_BANKS_DETECT from this board port. This new framework will be used by the upcoming lwmon5 update as well. Signed-off-by: Stefan Roese <sr@denx.de> Acked-by: Heiko Schocher <hs@denx.de> Cc: Matthias Fuchs <matthias.fuchs@esd.eu>
2009-10-28cfi: Add weak default function for flash_cmd_reset()Stefan Roese
Currently the CFI driver issues both AMD and Intel reset commands. This is because the driver doesn't know yet which chips are connected. This dual reset seems to cause problems with the M29W128G chips as reported by Richard Retanubun. This patch now introduces a weak default function for the CFI reset command, still with both resets. This can be overridden by a board specific version if necessary. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Richard Retanubun <RichardRetanubun@ruggedcom.com>
2008-11-19UBI: Add basic UBI support to U-Boot (Part 7/8)Kyungmin Park
This patch adds basic UBI (Unsorted Block Image) support to U-Boot. It's based on the Linux UBI version and basically has a "OS" translation wrapper that defines most Linux specific calls (spin_lock() etc.) into no-ops. Some source code parts have been uncommented by "#ifdef UBI_LINUX". This makes it easier to compare this version with the Linux version and simplifies future UBI ports/bug-fixes from the Linux version. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Stefan Roese <sr@denx.de>