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2017-04-05board_f: Drop board_type parameter from initdram()Simon Glass
It looks like only cm5200 and tqm8xx use this feature, so we don't really need it in generic code. Drop it and have the users access gd->board_type directly. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Stefan Roese <sr@denx.de>
2017-03-16spl: Add spl_early_init()Eddie Cai
At present malloc_base/_limit/_ptr are not initialised in spl_init() when we call spl_init() in board_init_f(). This is due to a recent change aimed at avoiding overwriting the malloc area set up on some boards by spl_relocate_stack_gd(). However if CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN is not defined, we now skip setting up the memory area in spl_init() which is obviously wrong. To fix this, add a new function spl_early_init() which can be called in board_init_f(). Fixes: b3d2861e (spl: Remove overwrite of relocated malloc limit) Signed-off-by: Eddie Cai <eddie.cai.linux@gmail.com> Rewrote spl_{,early_}init() to avoid duplicate code: Rewrite/expand commit message: Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Eddie Cai <eddie.cai.linux@gmail.com>
2016-11-14efi: Add support for a hello world test programSimon Glass
It is useful to have a basic sanity check for EFI loader support. Add a 'bootefi hello' command which loads HelloWord.efi and runs it under U-Boot. Signed-off-by: Simon Glass <sjg@chromium.org> [agraf: Fix documentation, add unfulfilled kconfig dep] Signed-off-by: Alexander Graf <agraf@suse.de>
2016-10-23Convert CONSOLE_PRE_CONSOLE_BUFFER options to KconfigSimon Glass
Move these option to Kconfig and tidy up existing uses. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jteki@openedev.com>
2016-10-11Add _image_binary_end section declarationSimon Glass
This is used in some link scripts, so add a declaration for it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-09-23Move error macros from <asm-generic/errno.h> to <linux/errno.h>Masahiro Yamada
There are no files that include <asm-generic/errno.h> any more. Move error macro defines to include/linux/errno.h and remove include/asm-generic/errno.h. Going forward, please include <linux/errno.h> when you need error macros. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-09-07global_data.h: Standardize tabs and alignment for commentsRobert P. J. Day
Line up comments for readibility. Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
2016-07-15armv8: Move secure_ram variable out of generic global dataYork Sun
Secure_ram variable was put in generic global data. But only ARMv8 uses this variable. Move it to ARM specific data structure. Signed-off-by: York Sun <york.sun@nxp.com>
2016-06-06Merge branch 'master' of git://www.denx.de/git/u-boot-microblazeTom Rini
2016-06-06env: Setup GD_FLG_ENV_DEFAULT flag when default environment are usedMichal Simek
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>
2016-06-03dm: gpio: Add methods for open drain settingmario.six@gdsys.cc
Certain GPIO devices have the capability to switch their GPIOs into open-drain mode, that is, instead of actively driving the output (Push-pull output), the pin is connected to the collector (for a NPN transistor) or the drain (for a MOSFET) of a transistor, respectively. The pin then either forms an open circuit or a connection to ground, depending on the state of the transistor. This patch adds functions to the GPIO uclass to switch GPIOs to open-drain mode on devices that support it. Signed-off-by: Mario Six <mario.six@gdsys.cc> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: York Sun <york.sun@nxp.com>
2016-05-17dm: gpio: add a default gpio xlate routineEric Nelson
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>
2016-03-17gpio: Use const where possibleSimon Glass
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>
2016-03-17gpio: Add a function to obtain a GPIO vector valueSimon Glass
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>
2016-02-08Remove unused CONFIG_MODEM_SUPPORT option and associated dead code.David Müller (ELSOFT AG)
Signed-off-by: David Müller <d.mueller@elsoft.ch>
2016-02-06Use correct spelling of "U-Boot"Bin Meng
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>
2016-01-20dm: common: Add memory reservation for the video uclassSimon Glass
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>
2015-12-15Reserve secure memoryYork Sun
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>
2015-11-19console: Add a console bufferSimon Glass
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>
2015-11-05include: Add generic bitops headersFabio Estevam
Use the generic bitops header files from the kernel. Imported from kernel 4.2.3. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
2015-11-04dm: spl: Support device tree when BSS is in a different sectionSimon Glass
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>
2015-10-23dm: implement a Timer uclassThomas Chou
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>
2015-10-21linux/bitops.h: GENMASK copy from linuxJagan Teki
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>
2015-08-17Revert "Align global_data to a 16-byte boundary"Simon Glass
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>
2015-08-14Align global_data to a 16-byte boundarySimon Glass
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>
2015-08-14common: Display >=4GiB memory bank sizeBin Meng
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>
2015-08-05Add a way to skip relocationSimon Glass
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>
2015-08-05Reserve the top 16 flag bits for architecture-specific useSimon Glass
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>
2015-07-21dm: spl: Allow device tree/driver model in board_init_f()Simon Glass
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>
2015-07-21dm: gpio: Add dm_gpio_request() to manually request a GPIOSimon Glass
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>
2015-07-21dm: gpio: Add dm_gpio_lookup_name() to look up a GPIO nameSimon Glass
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>
2015-07-14dm: x86: baytrail: Correct PCI region 3 when driver model is usedSimon Glass
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>
2015-06-04gpio: fix typos in GPIO headerMasahiro Yamada
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-05-14dm: gpio: Fix comment typo in GPIOD_IS_INSimon Glass
This should say 'in', not 'out'. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-05-13dm: gpio: Add error handling and a function to claim vector GPIOsSimon Glass
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>
2015-03-05m68k: Add generic board support for MCF547X/8X and MCF5445XAlison Wang
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>
2015-03-05m68k: add generic-board supportangelo@sysam.it
Add generic-board support for the m68k architecture. Signed-off-by: Angelo Dureghello <angelo@sysam.it>
2015-02-17avr32: add generic board supportAndreas Bießmann
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
2015-02-04Merge branch 'master' of git://git.denx.de/u-boot-ubiTom Rini
2015-01-29Export redesignMartin Dorwig
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)
2015-01-29dm: gpio: Mark the old GPIO API deprecatedSimon Glass
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>
2015-01-29dm: gpio: Add better functions to request GPIOsSimon Glass
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>
2015-01-29dm: gpio: Add a driver GPIO translation methodSimon Glass
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>
2015-01-29dm: gpio: Add a native driver model APISimon Glass
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>
2015-01-28ubifs: Import atomic_long operations from LinuxAnton Habegger
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>
2015-01-12pci: Make pci apis usable before relocationBin Meng
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>
2014-11-24Merge git://git.denx.de/u-boot-dmTom Rini
Conflicts: drivers/serial/serial-uclass.c Signed-off-by: Tom Rini <trini@ti.com>
2014-11-21dm: Split the simple malloc() implementation into its own fileSimon Glass
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>
2014-11-21dm: gpio: Add a function to read an ID from a list of GPIOsSimon Glass
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>
2014-11-21dm: serial: Move current serial port pointer to global_dataSimon Glass
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>