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* Merge branch 'for-next/tftp'Sascha Hauer2019-09-121-0/+2
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| * fs: provide no_revalidate_d_ops for network file systemsAhmad Fatoum2019-08-231-0/+2
| | | | | | | | | | | | | | | | | | Networked file systems may wish to forego dentry caching altogether, so every lookup goes over the network and stale data is avoided. Provide a no_revalidate_d_ops helper object that does this. Signed-off-by: Ahmad Fatoum <ahmad@a3f.at> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/qemu'Sascha Hauer2019-09-122-0/+27
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| * | Compile libfdt for bareboxSascha Hauer2019-08-192-0/+27
| |/ | | | | | | | | | | | | | | | | libfdt can be useful for very early device tree parsing, so compile it for barobox aswell. This is done the same way as done in the Kernel: we put C files with the same name as in libfdt into lib/ and just include the libfdt files from there. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/omap'Sascha Hauer2019-09-121-1/+1
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| * | mtd: nand: gpmc: Add BCH16 supportSascha Hauer2019-08-281-1/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds support for BCH16 ECC encoding. The support is mostly taken from Linux-5.3-rc6. One major change is the different wrap mode used. The Kernel uses wrapmode 1, which means "pass all data through the BCH engine". Still the Kernel has to skip the OOB marker which is done by reading all user data, then use NAND_CMD_RNDOUT to position right behind the OOB marker and then read the ECC data. Instead of doing this we use wrap mode 4 which allows us to bypass the OOB marker from the BCH engine automatically. This explains bch_wrapmode = 1, eccsize0 = 0, eccsize1 = 52 vs. bch_wrapmode = 4, eccsize0 = 4, eccsize1 = 52 Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/mtd'Sascha Hauer2019-09-121-0/+7
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| * | mtd: nand: Embed struct mtd_info into struct nand_chipSascha Hauer2019-08-261-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | Similar to what is done in the Kernel. In the Kernel we have a struct nand_device embedded into struct nand_chip and the nand_device has an mtd_info embedded into it. Until we have struct nand_device we embed mtd_info directly into the nand_chip. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | mtd: nand: Add and use static inline wrapper for getting nand_chip from mtdSascha Hauer2019-08-261-0/+5
| |/ | | | | | | | | | | | | | | | | All drivers in tree use mtd->priv for the nand_chip. Add and use a static inline wrapper mtd_to_nand() which we already have in the kernel for getting the nand_chip from the mtd_info struct. Next step would be to embed a struct mtd_info into struct nand_chip. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/misc'Sascha Hauer2019-09-121-0/+1
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| * | mfd: rave-sp: Emulate firmware/bootloader mode reporting on RDU2Andrey Smirnov2019-09-091-0/+1
| |/ | | | | | | | | | | | | | | | | Add code to emulate firmware/bootloader mode reporting via "general_status" field on RDU2. This is needed to correctly report if RAVE SP is in bootloader of application mode during startup. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* / mtd: spi-nor: add UNLOCK_GLOBAL_BLOCK supportOleksij Rempel2019-08-211-0/+1
|/ | | | | | | | Ported from linux-4.19-at91 linux4sam_6.1 and needed for SAMA5D27 SOM1 EK. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/mtd-gpmi-nand'Sascha Hauer2019-08-152-6/+3
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| * mtd: nand: Add function to parse device tree propertiesSascha Hauer2019-08-061-0/+2
| | | | | | | | | | | | | | This adds nand_of_parse_node() which can be used to parse generic NAND device properties. Not very complete yet, but it's a start. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * mtd: nand-mxs: change API between NAND driver and fcb codeSascha Hauer2019-08-061-6/+1
| | | | | | | | | | | | | | | | | | | | | | | | The imx-bbu-nand-fcb update handler code calls into the NAND driver to get the ecc strength and bad block marker position. Change the API so that only a single function is necessary and not three functions. Also in future the ecc strength will be configurable via device tree. This means static parameters like page size / oob size are no longer enough to calculate the ecc strength and so we store a pointer to our mtd_info struct in a static global variable. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/pstore'Sascha Hauer2019-07-121-2/+4
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| * | pstore: remove unused codeSascha Hauer2019-07-091-2/+0
| | | | | | | | | | | | | | | | | | pstore_info->write() is unused, remove the code implementing it. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | pstore: Only capture log messagesSascha Hauer2019-07-091-0/+4
| |/ | | | | | | | | | | | | | | | | | | | | | | | | With this pstore only captures barebox log messages printed with pr_* and dev_*, but no longer anything printed with printf and friends. When capturing the barebox output with pstore only the log messages are of interest, but not the ones printed with printf and certainly not the things typed interactively on the command line. These are logged currently because we register pstore as a barebox console. Instead, hook into pr_puts which only outputs the barebox log messages. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/misc'Sascha Hauer2019-07-121-1/+1
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| * | treewide: remove stale mentions of CONFIG_OF in commentsAhmad Fatoum2019-06-131-1/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | barebox doesn't define a CONFIG_OF kconfig option, but CONFIG_OFTREE for the device tree handling and CONFIG_OFDEVICE for probing devices out of the device tree. Replace comment mentions of CONFIG_OF with mentions of either as appropriate. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | clk: divider: export clk_div_mask() helperMarcin Niestroj2019-07-041-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit e6d3cc7b1fac3d7f1313faf8ac9b23830113e3ec Linux upstream. clk: divider: export clk_div_mask() helper Export clk_div_mask() in clk-provider header so every clock providers derived from the generic clock divider may share the definition instead of redefining it. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | clk: divider: Make generic for usage elsewhereMarcin Niestroj2019-07-021-0/+8
|/ | | | | | | | | | | | | | | | | | commit bca9690b942654f668ffb5124b2bbd0ba0f007bb Linux upstream adjusted to current Barebox codebase. clk: divider: Make generic for usage elsewhere Some devices don't use mmio to interact with dividers. Split out the logic from the register read/write parts so that we can reuse the division logic elsewhere. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Tested-by: Kenneth Westfield <kwestfie@codeaurora.org> Signed-off-by: Michael Turquette <mturquette@linaro.org> Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* mtd: spi-nor: provide default erase_sector implementationSteffen Trumtrar2019-05-081-1/+2
| | | | | | | | | | | | | | | | | | | | | | | Based on the Linux v4.4 patch commit c67cbb839da9cc2757eabfa128556db6a2baf160 Author: Brian Norris <computersforpeace@gmail.com> AuthorDate: Tue Nov 10 12:15:27 2015 -0800 Commit: Brian Norris <computersforpeace@gmail.com> CommitDate: Thu Nov 19 13:34:44 2015 -0800 mtd: spi-nor: provide default erase_sector implementation Some spi-nor drivers perform sector erase by duplicating their write_reg() command. Let's not require that the driver fill this out, and provide a default instead. Tested on m25p80.c and Medatek's MT8173 SPI NOR flash driver. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* mtd: spi-nor: introduce SPI 1-2-2 and SPI 1-4-4 protocolsSteffen Trumtrar2019-05-081-26/+168
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sync the driver with Linux v4.12 and apply the patch commit cfc5604c488ccd17936b69008af0c9ae050f4a08 Author: Cyrille Pitchen <cyrille.pitchen@atmel.com> AuthorDate: Tue Apr 25 22:08:46 2017 +0200 Commit: Cyrille Pitchen <cyrille.pitchen@wedev4u.fr> CommitDate: Mon May 15 21:56:17 2017 +0200 mtd: spi-nor: introduce SPI 1-2-2 and SPI 1-4-4 protocols This patch changes the prototype of spi_nor_scan(): its 3rd parameter is replaced by a 'struct spi_nor_hwcaps' pointer, which tells the spi-nor framework about the actual hardware capabilities supported by the SPI controller and its driver. Besides, this patch also introduces a new 'struct spi_nor_flash_parameter' telling the spi-nor framework about the hardware capabilities supported by the SPI flash memory and the associated settings required to use those hardware caps. Then, to improve the readability of spi_nor_scan(), the discovery of the memory settings and the memory initialization are now split into two dedicated functions. 1 - spi_nor_init_params() The spi_nor_init_params() function is responsible for initializing the 'struct spi_nor_flash_parameter'. Currently this structure is filled with legacy values but further patches will allow to override some parameter values dynamically, for instance by reading the JESD216 Serial Flash Discoverable Parameter (SFDP) tables from the SPI memory. The spi_nor_init_params() function only deals with the hardware capabilities of the SPI flash memory: especially it doesn't care about the hardware capabilities supported by the SPI controller. 2 - spi_nor_setup() The second function is called once the 'struct spi_nor_flash_parameter' has been initialized by spi_nor_init_params(). With both 'struct spi_nor_flash_parameter' and 'struct spi_nor_hwcaps', the new argument of spi_nor_scan(), spi_nor_setup() computes the best match between hardware caps supported by both the (Q)SPI memory and controller hence selecting the relevant settings for (Fast) Read and Page Program operations. Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* mtd: spi-nor: remove unused read_xfer/write_xfer hooksSteffen Trumtrar2019-05-081-32/+0
| | | | | | | | | | | | | | | | | | | | | | Based on the Linux v4.3 patch: commit 79c452adb159dc9abc507ea13faec8d115a78758 Author: Cyrille Pitchen <cyrille.pitchen@atmel.com> AuthorDate: Fri Sep 18 17:49:25 2015 +0200 Commit: Brian Norris <computersforpeace@gmail.com> CommitDate: Mon Sep 21 16:49:52 2015 -0700 mtd: spi-nor: remove unused read_xfer/write_xfer hooks struct spi_nor_xfer_cfg and read_xfer/write_xfer hooks were never used by any driver. Do some cleanup by removing them. Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> Reviewed-by: Marek Vasut <marex@denx.de> Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* mtd: spi-nor: remove unused write_enable from write_regSteffen Trumtrar2019-05-081-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | Based on the Linux v4.2 commit: commit f9f3ce835ddce3c669eee869253105f88819888b Author: Jagan Teki <jteki@openedev.com> AuthorDate: Wed Aug 19 15:26:44 2015 +0530 Commit: Brian Norris <computersforpeace@gmail.com> CommitDate: Fri Sep 11 16:04:55 2015 -0700 mtd: spi-nor: Zap unneeded write_enable from write_reg The 'write_enable' argument is unused and unneeded, so remove it from the API. Signed-off-by: Jagan Teki <jteki@openedev.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Han Xu <han.xu@freescale.com> [Brian: fixed for nxp-spifi.c] Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* spi: Extend the core to ease integration of SPI memory controllersSteffen Trumtrar2019-05-081-0/+307
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sync with Linux v5.1-rc1. This is the barebox adoption of the commit commit c36ff266dc82f4ae797a6f3513c6ffa344f7f1c7 Author: Boris Brezillon <boris.brezillon@bootlin.com> Date: Thu Apr 26 18:18:14 2018 +0200 spi: Extend the core to ease integration of SPI memory controllers Some controllers are exposing high-level interfaces to access various kind of SPI memories. Unfortunately they do not fit in the current spi_controller model and usually have drivers placed in drivers/mtd/spi-nor which are only supporting SPI NORs and not SPI memories in general. This is an attempt at defining a SPI memory interface which works for all kinds of SPI memories (NORs, NANDs, SRAMs). Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Reviewed-by: Frieder Schrempf <frieder.schrempf@exceet.de> Tested-by: Frieder Schrempf <frieder.schrempf@exceet.de> Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/stm32'Sascha Hauer2019-04-091-14/+27
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| * clk: mux: Support CLK_SET_RATE_NO_REPARENT flagSascha Hauer2019-03-111-0/+1
| | | | | | | | | | | | | | Since barebox doesn't do reparenting on rate changes we only have to define the flag. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * clk: mux: Support CLK_MUX_READ_ONLY flagSascha Hauer2019-03-111-0/+1
| | | | | | | | | | | | Support readonly dividers using the CLK_MUX_READ_ONLY flag. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * clk: mux: Support mux specific flagsSascha Hauer2019-03-111-6/+8
| | | | | | | | | | | | | | We'll need mux specific flags in the future, so add a parameter to the mux initialization functions. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * clk: divider: Support CLK_DIVIDER_READ_ONLY flagSascha Hauer2019-03-111-0/+1
| | | | | | | | | | | | To support a readonly divider add the CLK_DIVIDER_READ_ONLY flag. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * clk: divider: pass divider flagsSascha Hauer2019-03-111-6/+10
| | | | | | | | | | | | | | The generic clk divider needs clock flags and divider flags. Fix prototypes to take both as separate arguments. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * clk: Support CLK_IS_CRITICAL flagSascha Hauer2019-03-111-0/+1
| | | | | | | | | | | | | | Support CLK_IS_CRITICAL flag. Simply do not disable the clock even when the enable count is zero. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * clk: Make CLK_IGNORE_UNUSED genericSascha Hauer2019-03-111-0/+1
| | | | | | | | | | | | | | | | barebox will never disable unused clocks, so add CLK_IGNORE_UNUSED as a no-op flag. With this we can keep the changes to the imported kernel code smaller. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * clk: export clk_gate_is_enabled()Sascha Hauer2019-03-111-0/+2
| | | | | | | | | | | | Will be needed by stm32 clk support. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * clk: parent_names should be constSascha Hauer2019-03-111-4/+4
| | | | | | | | | | | | | | Not only the array of pointers should be const, but also the strings they point to. Add missing const. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/pstore'Sascha Hauer2019-04-092-9/+22
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| * | pstore: Replace arguments for write() APIKees Cook2019-03-181-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | Similar to the pstore_info read() callback, there were too many arguments. This switches to the new struct pstore_record pointer instead. This adds "reason" and "part" to the record structure as well. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | pstore: Replace arguments for read() APIKees Cook2019-03-181-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | The argument list for the pstore_read() interface is unwieldy. This changes passes the new struct pstore_record instead. The erst backend was already doing something similar internally. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | pstore: Extract common arguments into structureKees Cook2019-03-181-1/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The read/mkfile pair pass the same arguments and should be cleared between calls. Move to a structure and wipe it after every loop. Signed-off-by: Kees Cook <keescook@chromium.org> [p.zabel@pengutronix.de: ported to Barebox from Linux commit 9abdcccc3d5f] Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | pstore/ram: Clarify resource reservation labelsKees Cook2019-03-181-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When ramoops reserved a memory region in the kernel, it had an unhelpful label of "persistent ram". When reading iomem, it would be repeated many times, did not hint that it was ramoops in particular, and didn't clarify very much about what each was used for: 0x4fdd4000 - 0x4fdf3fff (size 0x00020000) persistent ram 0x4fdf4000 - 0x4fe13fff (size 0x00020000) persistent ram ... 0x4ff74000 - 0x4ff93fff (size 0x00020000) persistent ram 0x4ff94000 - 0x4ffb3fff (size 0x00020000) persistent ram 0x4ffb4000 - 0x4ffd3fff (size 0x00020000) persistent ram Instead, this adds meaningful labels for how the various regions are being used: 0x4fdd4000 - 0x4fdf3fff (size 0x00020000) ramoops:dump(0/12) 0x4fdf4000 - 0x4fe13fff (size 0x00020000) ramoops:dump(1/12) ... 0x4ff74000 - 0x4ff93fff (size 0x00020000) ramoops:console 0x4ff94000 - 0x4ffb3fff (size 0x00020000) ramoops:ftrace 0x4ffb4000 - 0x4ffd3fff (size 0x00020000) ramoops:pmsg Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org> [p.zabel@pengutronix.de: ported to Barebox from Linux commit 1227daa43bce] Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | pstore/ram: Do not use stack VLA for parity workspaceKees Cook2019-03-181-0/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | Instead of using a stack VLA for the parity workspace, preallocate a memory region. The preallocation is done to keep from needing to perform allocations during crash dump writing, etc. This also fixes a missed release of librs on free. Signed-off-by: Kees Cook <keescook@chromium.org> [p.zabel@pengutronix.de: ported to Barebox from Linux commit f2531f1976d9] Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/net'Sascha Hauer2019-04-091-0/+39
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| * | net: phy: Add register access helper functions for physSascha Hauer2019-03-111-0/+35
| | | | | | | | | | | | | | | | | | | | | Linux has phy helpers to access paged registers and to modify phy registers. Add them to barebox for upcoming realtek phy support. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | net: phy: Add PHY_ID_MATCH_* macrosSascha Hauer2019-03-111-0/+4
| |/ | | | | | | | | | | | | Linux has some macros to describe matching phy ids to vendors and models. Add them to barebox for upcoming realtek phy driver. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/misc'Sascha Hauer2019-04-092-27/+37
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| * | linux/kernel.h: split *_MAX and *_MIN macros into <linux/limits.h>Masahiro Yamada2019-03-212-27/+37
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Copy include/linux/limits.h from Linux 5.1-rc1 (removing #include <uapi/linux/limits.h>). While we are here, add SPDX License tag to <linux/kernel.h>. Based on the following Linux commits: - 54d50897d544 ("linux/kernel.h: split *_MAX and *_MIN macros into <linux/limits.h>") - 2dc0e68d5ada ("linux/kernel.h: use 'short' to define USHRT_MAX, SHRT_MAX, SHRT_MIN") Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* / ARM: zii-common: add support for switch reset on RDU1Lucas Stach2019-03-181-0/+1
|/ | | | | Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/nvme'Sascha Hauer2019-03-075-1/+4335
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