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* env: Setup GD_FLG_ENV_DEFAULT flag when default environment are usedMichal Simek2016-06-06-0/+1
| | | | | | | | Setup flag when default environment are used to be able to rewrite default distro boot variables based on SoC boot mode. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Alexander Graf <agraf@suse.de>
* dm: gpio: add a default gpio xlate routineEric Nelson2016-05-17-5/+14
| | | | | | | | | | | | | | | | | Many drivers use a common form of offset + flags for device tree nodes. e.g.: <&gpio1 2 GPIO_ACTIVE_LOW> This patch adds a common implementation of this type of parsing and calls it when a gpio driver doesn't supply its' own xlate routine. This will allow removal of the driver-specific versions in a handful of drivers and simplify the addition of new drivers. Signed-off-by: Eric Nelson <eric@nelint.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
* gpio: Use const where possibleSimon Glass2016-03-17-5/+5
| | | | | | | | Some functions do not change the struct gpio_desc parameter. Update these to use const so this is clear. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* gpio: Add a function to obtain a GPIO vector valueSimon Glass2016-03-17-0/+12
| | | | | | | | | | We can use GPIOs as binary digits for reading 'strapping' values. Each GPIO is assigned a single bit and can be set high or low on the circuit board. We already have a legacy function for reading these values. Add one that supports driver model. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* Remove unused CONFIG_MODEM_SUPPORT option and associated dead code.David Müller (ELSOFT AG)2016-02-08-4/+0
| | | | Signed-off-by: David Müller <d.mueller@elsoft.ch>
* Use correct spelling of "U-Boot"Bin Meng2016-02-06-1/+1
| | | | | | | | | | Correct spelling of "U-Boot" shall be used in all written text (documentation, comments in source files etc.). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Heiko Schocher <hs@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Minkyu Kang <mk7.kang@samsung.com>
* dm: common: Add memory reservation for the video uclassSimon Glass2016-01-20-0/+4
| | | | | | | | | | | | | Before relocation we need to reserve memory for the video driver frame buffers so that they can use this memory when they start up (after relocation). Add a call to the uclass to permit this. The current top and bottom of the region is stored in global_data so that it can be checked post-relocation to ensure enough memory is available. No video device should be probed before relocation. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de>
* Reserve secure memoryYork Sun2015-12-15-0/+14
| | | | | | | | | | | | | | | Secure memory is at the end of memory, separated and reserved from OS, tracked by gd->secure_ram. Secure memory can host MMU tables, security monitor, etc. This is different from PRAM used to reserve private memory. PRAM offers memory at the top of u-boot memory, not necessarily the real end of memory for systems with very large DDR. Using the end of memory simplifies MMU setup and avoid memory fragmentation. "bdinfo" command shows gd->secure_ram value if this memory is marked as secured. Signed-off-by: York Sun <yorksun@freescale.com>
* console: Add a console bufferSimon Glass2015-11-19-0/+6
| | | | | | | | | | | | | | | | | | | It is useful to be able to record console output and provide console input via a buffer. This provides sandbox with the ability to run a command and check its output. If the console is set to silent then no visible output is generated. This also provides a means to fix the problem where tests produce unwanted output, such as errors or warnings. This can be confusing. We can instead set the console to silent and record this output. It can be checked later in the test if required. It is possible that this may prove useful for non-test situations. For example the console output may be suppressed for normal operations, but recorded and stored for access by the OS. That feature is not implemented at present. Signed-off-by: Simon Glass <sjg@chromium.org>
* include: Add generic bitops headersFabio Estevam2015-11-05-0/+163
| | | | | | | | Use the generic bitops header files from the kernel. Imported from kernel 4.2.3. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
* dm: spl: Support device tree when BSS is in a different sectionSimon Glass2015-11-04-0/+1
| | | | | | | | | | | | | | | | At present in SPL we place the device tree immediately after BSS. This avoids needing to copy it out of the way before BSS can be used. However on some boards BSS is not placed with the image - e.g. it can be in RAM if available. Add an option to tell U-Boot that the device tree should be placed at the end of the image binary (_image_binary_end) instead of at the end of BSS. Note: A common reason to place BSS in RAM is to support the FAT filesystem. We should update the code so that it does not use so much BSS. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* dm: implement a Timer uclassThomas Chou2015-10-23-0/+3
| | | | | | | Implement a Timer uclass to work with lib/time.c. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Acked-by: Simon Glass <sjg@chromium.org>
* linux/bitops.h: GENMASK copy from linuxJagan Teki2015-10-21-0/+8
| | | | | | | | | | | | GENMASK is used to create a contiguous bitmask([hi:lo]). This patch is a copy from Linux, with below commit details "bitops: Fix shift overflow in GENMASK macros" (sha1: 00b4d9a14125f1e51874def2b9de6092e007412d) Cc: Tom Rini <trini@konsulko.com> Cc: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
* Revert "Align global_data to a 16-byte boundary"Simon Glass2015-08-17-2/+1
| | | | | | | | | | This causes widespread breakage due to the operation of the low-level code in crt0.S and cro0_64.S for ARM at least. The fix is not complicated but it seems safer to revert this for now. This reverts commit 2afddae07523f23f77acd066ad1719f53d289f98. Signed-off-by: Simon Glass <sjg@chromium.org>
* Align global_data to a 16-byte boundarySimon Glass2015-08-14-1/+2
| | | | | | | | Some archs like to have larger alignment for their global data. Use 16 bytes which suits all current archs. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* common: Display >=4GiB memory bank sizeBin Meng2015-08-14-2/+2
| | | | | | | | bd->bi_dram[] has both start address and size defined as 32-bit, which is not the case on some platforms where >=4GiB memory bank is used. Change them to support such memory banks. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
* Add a way to skip relocationSimon Glass2015-08-05-0/+1
| | | | | | | | | | | When running U-Boot as an EFI application we cannot relocate since we do not have relocation information. U-Boot has already been relocated to a suitable address. Add a global_data flag to control skipping relocation. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* Reserve the top 16 flag bits for architecture-specific useSimon Glass2015-08-05-1/+1
| | | | | | | | | Add a convention that the generic global_data only occupy the bottom 16 bits of the flags word, so that there is less chance of a conflict. At present the x86 flags conflict. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* dm: spl: Allow device tree/driver model in board_init_f()Simon Glass2015-07-21-0/+1
| | | | | | | | | | | | Add an spl_init() function that does basic init such that board_init_f() can use simple malloc(), device tree and driver model. Each one is set up only if enabled for SPL. Note: We really should refactor SPL such that there is a single board_init_f() and rename the existing weak board_init_f() functions provided by boards, calling them from the single board_init_f(). Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: gpio: Add dm_gpio_request() to manually request a GPIOSimon Glass2015-07-21-0/+12
| | | | | | | This function can be used for testing to manually request a GPIO for use, without resorting to the legacy GPIO API. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: gpio: Add dm_gpio_lookup_name() to look up a GPIO nameSimon Glass2015-07-21-0/+13
| | | | | | | Provide a driver-model function to look up a GPIO name. Make the standard function use it. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: x86: baytrail: Correct PCI region 3 when driver model is usedSimon Glass2015-07-14-0/+1
| | | | | | | | Commit afbbd413a fixed this for non-driver-model. Make sure that the driver model code handles this also. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* gpio: fix typos in GPIO headerMasahiro Yamada2015-06-04-8/+8
| | | | Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* dm: gpio: Fix comment typo in GPIOD_IS_INSimon Glass2015-05-14-1/+1
| | | | | | This should say 'in', not 'out'. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: gpio: Add error handling and a function to claim vector GPIOsSimon Glass2015-05-13-3/+12
| | | | | | | | | gpio_get_values_as_int() should return an error if something goes wrong. Also provide gpio_claim_vector(), a function to request the GPIOs and set them to input mode. Otherwise callers have to do this themselves. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* m68k: Add generic board support for MCF547X/8X and MCF5445XAlison Wang2015-03-05-1/+6
| | | | | | | | This patch adds generic board support for MCF547X/8X and MCF5445X. It is based on the patch about common generic board support for M68K architecture sent by Angelo. Signed-off-by: Alison Wang <alison.wang@freescale.com>
* m68k: add generic-board supportangelo@sysam.it2015-03-05-1/+1
| | | | | | Add generic-board support for the m68k architecture. Signed-off-by: Angelo Dureghello <angelo@sysam.it>
* avr32: add generic board supportAndreas Bießmann2015-02-17-0/+4
| | | | Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
* Merge branch 'master' of git://git.denx.de/u-boot-ubiTom Rini2015-02-04-0/+260
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| * ubifs: Import atomic_long operations from LinuxAnton Habegger2015-01-28-0/+260
| | | | | | | | | | | | | | | | | | | | This commit is a preperation for a subsequent UBIFS commit which needs atomic_long operations. Therefor "include/asm-generic/atomic-long.h" is imported from 1860e37 Linux 3.15 Signed-off-by: Anton Habegger <anton.habegger@gmail.com>
* | Export redesignMartin Dorwig2015-01-29-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | this is an atempt to make the export of functions typesafe. I replaced the jumptable void ** by a struct (jt_funcs) with function pointers. The EXPORT_FUNC macro now has 3 fixed parameters and one variadic parameter The first is the name of the exported function, the rest of the parameters are used to format a functionpointer in the jumptable, the EXPORT_FUNC macros are expanded three times, 1. to declare the members of the struct 2. to initialize the structmember pointers 3. to call the functions in stubs.c Signed-off-by: Martin Dorwig <dorwig@tetronik.com> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> (resending to the list since my tweaks are not quite trivial)
* | dm: gpio: Mark the old GPIO API deprecatedSimon Glass2015-01-29-0/+21
| | | | | | | | | | | | | | Add a deprecation notice to each function so that it is more obvious that we are moving GPIOs to driver model. Signed-off-by: Simon Glass <sjg@chromium.org>
* | dm: gpio: Add better functions to request GPIOsSimon Glass2015-01-29-0/+199
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | At present U-Boot sort-of supports the standard way of reading GPIOs from device tree nodes, but the support is incomplete, a bit clunky and only works for GPIO bindings where #gpio-cells is 2. Add new functions to request GPIOs, taking full account of the device tree binding. These permit requesting a GPIO with a simple call like: gpio_request_by_name(dev, "cd-gpios", 0, &desc, GPIOD_IS_IN); This will request the GPIO, looking at the device's node which might be this, for example: cd-gpios = <&gpio TEGRA_GPIO(B, 3) GPIO_ACTIVE_LOW>; The GPIO will be set to input mode in this case and polarity will be honoured by the GPIO calls. It is also possible to request and free a list of GPIOs. Signed-off-by: Simon Glass <sjg@chromium.org>
* | dm: gpio: Add a driver GPIO translation methodSimon Glass2015-01-29-0/+29
| | | | | | | | | | | | | | | | | | Only the GPIO driver knows about the full GPIO device tree binding used by a device. Add a method to allow the driver to provide this information to the uclass, including the GPIO offset within the device and flags such as the polarity. Signed-off-by: Simon Glass <sjg@chromium.org>
* | dm: gpio: Add a native driver model APISimon Glass2015-01-29-0/+16
|/ | | | | | | | | | | | | | | | | | | | | | | So far driver model's GPIO uclass just implements the existing GPIO API. This has some limitations: - it requires manual device tree munging to support GPIOs in device tree (fdtdec_get_gpio() and friends) - it does not understand polarity - it is somewhat slower since we must scan for the GPIO device each time - Global GPIO numbering can change if other GPIO drivers are probed - it requires extra steps to set the GPIO direction and value The new functions have a dm_ prefix where necessary to avoid name conflicts but we can remove that when it is no-longer needed. The new struct gpio_desc holds all required information about the GPIO. For now this is intended to be stored by the client requesting the GPIO, but in future it might be brought into the uclass in some way. With these changes the old GPIO API still works, and uses the driver model API underneath. Signed-off-by: Simon Glass <sjg@chromium.org>
* pci: Make pci apis usable before relocationBin Meng2015-01-12-0/+6
| | | | | | | | | | | | | | Introduce a gd->hose to save the pci hose in the early phase so that apis in drivers/pci/pci.c can be used before relocation. Architecture codes need assign a valid gd->hose in the early phase. Some variables are declared as static so change them to be either stack variable or global data member so that they can be used before relocation, except the 'indent' used by CONFIG_PCI_SCAN_SHOW which just affects some print format. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* Merge git://git.denx.de/u-boot-dmTom Rini2014-11-24-0/+1
|\ | | | | | | | | | | | | Conflicts: drivers/serial/serial-uclass.c Signed-off-by: Tom Rini <trini@ti.com>
| * dm: Split the simple malloc() implementation into its own fileSimon Glass2014-11-21-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The simple malloc() implementation is used when memory is tight. It provides a simple buffer with an incrementing pointer. At present the implementation is inside dlmalloc. Move it into its own file so that it is easier to find. Rather than using relocation as a signal that the full malloc() is available, add a special GD_FLG_FULL_MALLOC_INIT flag. This signals that the simple malloc() should no longer be used. In some cases, such as SPL, even the code space used by the full malloc() is wasteful. Add a CONFIG_SYS_MALLOC_SIMPLE option to provide only the simple malloc. In this case the full malloc is not available at all. It saves about 1KB of code space and about 0.5KB of data on Thumb 2. Acked-by: Tom Rini <trini@ti.com> Signed-off-by: Simon Glass <sjg@chromium.org>
* | dm: gpio: Add a function to read an ID from a list of GPIOsSimon Glass2014-11-21-1/+10
| | | | | | | | | | | | | | | | | | | | | | For board IDs a common approach is to set aside several GPIOs for use in determining the board ID. This can provide information about board features and the revision. Add a function that turns a list of GPIOs into an integer by assigning each GPIO to a single bit. Signed-off-by: Simon Glass <sjg@chromium.org>
* | dm: serial: Move current serial port pointer to global_dataSimon Glass2014-11-21-0/+1
|/ | | | | | | | | | | In general we can't store things in the data section until we have inited SDRAM. Some platforms allow this (e.g. those with SPL) but some don't. Move the pointer to global_data so that it will work on all platforms. Without this fix the serial port will not work prior to relocation with driver model on some platforms. Signed-off-by: Simon Glass <sjg@chromium.org>
* ppc: Zap Hymod boardMarek Vasut2014-10-27-3/+0
| | | | | | | | | | | | | | | Remove this board as this is the only one last user of eeprom_probe(), which is pretty non-standard stuff. This patch also removes all the PHP, SQL and CSS stuff from U-Boot, which probably makes U-Boot a bit less IoT ;-) Signed-off-by: Marek Vasut <marex@denx.de> Cc: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Tom Rini <trini@ti.com> Cc: Wolfgang Denk <wd@denx.de> Cc: Simon Glass <sjg@chromium.org> Cc: Heiko Schocher <hs@denx.de>
* Merge git://git.denx.de/u-boot-dmTom Rini2014-10-26-3/+67
|\ | | | | | | | | | | | | | | | | Fix a trivial conflict over adding <dm.h> Conflicts: arch/arm/cpu/armv7/omap3/board.c Signed-off-by: Tom Rini <trini@ti.com>
| * dm: gpio: Remove unused get_state() uclass methodSimon Glass2014-10-23-2/+0
| | | | | | | | | | | | This is no longer used so drop it. Signed-off-by: Simon Glass <sjg@chromium.org>
| * dm: gpio: Add gpio_requestf() helper for printf() stringsSimon Glass2014-10-23-0/+10
| | | | | | | | | | | | | | Add a helper which permits a printf()-style format string for the requester string. Signed-off-by: Simon Glass <sjg@chromium.org>
| * dm: Move the function for getting GPIO status into the uclassSimon Glass2014-10-23-0/+18
| | | | | | | | | | | | This function can be more easily tested if it is in the uclass. Signed-off-by: Simon Glass <sjg@chromium.org>
| * dm: gpio: Add gpio_get_function() and friendsSimon Glass2014-10-23-1/+33
| | | | | | | | | | | | Add helpers to the uclass to allow finding out the pin function. Signed-off-by: Simon Glass <sjg@chromium.org>
| * dm: gpio: Implement GPIO reservation in the uclassSimon Glass2014-10-23-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | We have several GPIO drivers now and all are doing similar things to record which GPIOs are reserved. Move this logic into the uclass to make the drivers similar. We retain the request()/free() methods since currently one driver does use these for setting up the pin. Signed-off-by: Simon Glass <sjg@chromium.org>
* | gpio: add protype for name_to_gpioJeroen Hofstee2014-10-25-0/+2
|/ | | | Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
* gpio: header file comment spelling fixesMarcel Ziswiler2014-10-22-5/+5
| | | | | | Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* dm: gpio: Enhance gpio command to show only active GPIOsSimon Glass2014-08-31-2/+13
| | | | | | | | | | | | The GPIO list is very long in many cases and most of them are not used. By default, show only the GPIOs that are in use, and provide a flag to show all of them. This makes the 'gpio status' command much more pleasant. In order to do this, driver model now exposes a method for obtaining the 'function' of a GPIO, which describes whether it is an input or output, for example. Implementation of this method is optional. Signed-off-by: Simon Glass <sjg@chromium.org>
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