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path: root/drivers/mtd/mtd_uboot.c
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2019-06-06mtd: Fix get_mtdparts()Patrice Chotard
When ENV_IS_IN_UBI is enable, get_mtdparts is called before relocation. During first get_mtdparts() call, mtdparts is not available in environment, it can be retrieved by calling board_mtdparts_default(), but following env_set() do nothing as we are before relocation. Finally mtdparts is still not available in environment. At second get_mtdparts() call, use_defaults is false, but mtdparts is still not in environment and is NULL. Remove use_defaults bool, only mtdparts criteria is useful. Fixes: commit 5ffcd50612f6 ("mtd: Use default mtdparts/mtids when not defined in the environment") Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-12-06mtd: Don't stop MTD partition creation when it fails on one deviceBoris Brezillon
MTD partition creation code is a bit tricky. It tries to figure out when things have changed (either MTD dev list or mtdparts/mtdids vars) and when that happens it first deletes all the partitions that had been previously created and then creates the new ones based on the new mtdparts/mtdids values. But before deleting the old partitions, it ensures that none of the currently registered parts are being used and bails out when that's not the case. So, we end up in a situation where, if at least one MTD dev has one of its partitions used by someone (UBI for instance), the partitions update logic no longer works for other devs. Rework the code to relax the logic and allow updates of MTD parts on devices that are not being used (we still refuse to updates parts on devices who have at least one of their partitions used by someone). Fixes: 5db66b3aee6f ("cmd: mtd: add 'mtd' command") Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Heiko Schocher <hs@denx.de>
2018-12-06mtd: Make sure we don't parse MTD partitions belonging to another devBoris Brezillon
The mtdparts variable might contain partition definitions for several MTD devices. Each partition layout is separated by a ';', so let's make sure we don't pick a wrong name when mtdparts is malformed. Fixes: 5db66b3aee6f ("cmd: mtd: add 'mtd' command") Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Heiko Schocher <hs@denx.de>
2018-12-06mtd: Make sure the name passed in mtdparts fits in mtd_name[]Boris Brezillon
The local mtd_name[] variable is limited in size. Return an error if the name passed in mtdparts does not fit in this local var. Fixes: 5db66b3aee6f ("cmd: mtd: add 'mtd' command") Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Heiko Schocher <hs@denx.de>
2018-12-06mtd: Be more strict on the "mtdparts=" prefix checkBoris Brezillon
strstr() does not guarantee that the string we're searching for is placed at the beginning. Use strncmp() instead. Fixes: 5db66b3aee6f ("cmd: mtd: add 'mtd' command") Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Heiko Schocher <hs@denx.de>
2018-12-06mtd: Use get_mtdids() instead of env_get("mtdids") in ↵Boris Brezillon
mtd_search_alternate_name() The environment is not guaranteed to contain a valid mtdids variable when called from mtd_search_alternate_name(). Call get_mtdids() instead of env_get("mtdids"). Fixes: ff4afa8a981e ("mtd: uboot: search for an equivalent MTD name with the mtdids") Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Tested-by: Heiko Schocher <hs@denx.de>
2018-12-06mtd: Parse mtdparts/mtdids again when the MTD list has been updatedBoris Brezillon
Updates to the MTD device list should trigger a new parsing of the mtdids/mtdparts vars even if those vars haven't changed. Fixes: 5db66b3aee6f ("cmd: mtd: add 'mtd' command") Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Heiko Schocher <hs@denx.de>
2018-11-13mtd: Use default mtdparts/mtids when not defined in the environmentBoris Brezillon
U-boot provides a mean to define default values for mtdids and mtdparts when they're not defined in the environment. Patch mtd_probe_devices() to use those default values when env_get("mtdparts") or env_get("mtdids") return NULL. This implementation is based on the logic found in cmd/mtdparts.c. Fixes: 5db66b3aee6f ("cmd: mtd: add 'mtd' command") Reported-by: Stefan Roese <sr@denx.de> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Stefan Roese <sr@denx.de> Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-10-10mtd: uboot: Fix hanging during mtd list commandAdam Ford
Some boards (like omap3_logic) hang when trying to access address 0. This happens when executing the new 'mtd list' command. This patch enhances the checks for conditions that would preclude mtd_probe_devices() from operating. Fixes: 5db66b3aee6f ("cmd: mtd: add 'mtd' command") Suggested-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Adam Ford <aford173@gmail.com> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-10-02cmd: mtd: add 'mtd' commandMiquel Raynal
There should not be a 'nand' command, a 'sf' command and certainly not a new 'spi-nand' command. Write a 'mtd' command instead to manage all MTD devices/partitions at once. This should be the preferred way to access any MTD device. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Stefan Roese <sr@denx.de> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-10-02mtd: uboot: search for an equivalent MTD name with the mtdidsMiquel Raynal
Using an MTD device (resp. partition) name in mtdparts is simple and straightforward. However, for a long time already, another name was given in mtdparts to indicate a device (resp. partition) so the "mtdids" environment variable was created to do the match. Let's create a function that, from an MTD device (resp. partition) name, search for the equivalent name in the "mtdparts" environment variable thanks to the "mtdids" string. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Stefan Roese <sr@denx.de> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
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>
2015-11-12mtd: uboot: Add meaningful error messageMaxime Ripard
The current error message in get_part if CONFIG_MTDPARTS is disabled is "offset is not a number" which is confusing and doesn't help at all. Change that for something that might give a hint on what's going on. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2015-07-10mtd: fix false positive "Offset exceeds device limit" errorMasahiro Yamada
Since commit 09c3280754f8 (mtd, nand: Move common functions from cmd_nand.c to common place), NAND commands would not work at all on large devices. => nand read 80000000 10000 10000 NAND read: Offset exceeds device limit => nand erase 100000 100000 NAND erase: Offset exceeds device limit The type of the "size" of "struct mtd_info" is uint64_t, while mtd_arg_off_size() and mtd_arg_off() treat chipsize as int type. The chipsize is wrapped around if the argument is given with 2GB or larger. Acked-by: Heiko Schocher <hs@denx.de> Acked-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-06-30mtd, nand: Move common functions from cmd_nand.c to common placeHeiko Schocher
Move common functions from cmd_nand.c (for calculating offset and size from cmdline paramter) to common place, so they could used from other commands which use mtd partitions. For onenand the arg_off_size() is left in common/cmd_onenand.c. It should use now the common arg_off() function, but as I could not test onenand I let it there ... Signed-off-by: Heiko Schocher <hs@denx.de> Acked-by: Scott Wood <scottwood@freescale.com> Reviewed-by: Jagannadh Teki <jteki@openedev.com>