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path: root/drivers/core
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2020-12-19dm: Avoid accessing seq directlySimon Glass3-6/+6
At present various drivers etc. access the device's 'seq' member directly. This makes it harder to change the meaning of that member. Change access to go through a function instead. The drivers/i2c/lpc32xx_i2c.c file is left unchanged for now. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-14dm: treewide: Rename ..._platdata variables to just ..._platSimon Glass3-7/+7
Try to maintain some consistency between these variables by using _plat as a suffix for them. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-14dm: treewide: Rename ofdata_to_platdata() to of_to_plat()Simon Glass4-11/+11
This name is far too long. Rename it to remove the 'data' bits. This makes it consistent with the platdata->plat rename. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-14dm: treewide: Rename dev_get_platdata() to dev_get_plat()Simon Glass2-2/+2
Rename this to be consistent with the change from 'platdata'. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-14dm: Rename 'platdata_size' to 'plat_size'Simon Glass1-8/+7
Rename this to be consistent with the change from 'platdata'. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-14dm: treewide: Rename 'platdata' variables to just 'plat'Simon Glass5-44/+43
We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename auto_alloc_size members to be shorterSimon Glass6-26/+22
This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: core: Drop unused parameter from dm_extended_scan_fdt()Simon Glass1-3/+3
This doesn't need to be passed the devicetree anymore. Drop it. Also rename the function to drop the _fdt suffix. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: core: Drop unused parameter from dm_scan_fdt()Simon Glass1-5/+4
This doesn't need to be passed the devicetree anymore. Drop it. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: core: Combine the flattree and livetree binding codeSimon Glass1-58/+16
At present there are two copies of this code. With ofnode we can combine them to reduce duplication. Update the dm_scan_fdt_node() function and adjust its callers. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: core: Add an ofnode function to get the devicetree rootSimon Glass1-6/+2
This is needed in at least one place. Avoid the conditional code in root.c by adding this inline function. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: core: Drop device_bind_offset()Simon Glass1-8/+0
This function is not needed since the standard device_bind() can be used instead. Drop it. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: core: Add a livetree function to check node statusSimon Glass1-0/+10
Add a way to find out if a node is enabled or not, based on its 'status' property. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: core: Rename device_bind_ofnode() to device_bind()Simon Glass1-3/+3
This is the standard function to use when binding devices. Drop the '_ofnode' suffix to make this clear. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: core: Rename device_bind() to device_bind_offset()Simon Glass1-3/+3
This function is not necessary anymore, since device_bind_ofnode() does the same thing and works with both flattree and livetree. Rename it to indicate that it is special. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-11-06acpi: Don't reset the tables with every new generationSimon Glass1-4/+6
At present if SSDT and DSDT code is created, only the latter is retained for examination by the 'acpi items' command. Fix this by only resetting the list when explicitly requested. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-10-30Merge tag 'dm-pull-30oct20' of ↵Tom Rini6-45/+126
https://gitlab.denx.de/u-boot/custodians/u-boot-dm of-platdata and dtoc improvements sandbox SPL tests binman support for compressed sections
2020-10-29dm: Use driver_info index instead of pointerSimon Glass1-0/+11
At present we use a 'node' pointer in the of-platadata phandle_n_arg structs. This is a pointer to the struct driver_info for a particular device, and we can use it to obtain the struct udevice pointer itself. Since we don't know the struct udevice pointer until it is allocated in memory, we have to fix up the phandle_n_arg.node at runtime. This is annoying since it requires that SPL's data is writable and adds a small amount of extra (generated) code in the dm_populate_phandle_data() function. Now that we can find a driver_info by its index, it is easier to put the index in the phandle_n_arg structures. Update dtoc to do this, add a new device_get_by_driver_info_idx() to look up a device by drive_info index and update the tests to match. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-10-29dm: core: Convert #ifdef to if() in root.cSimon Glass1-11/+7
Convert a few conditions to use compile-time checks to reduce the number of build paths. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-10-29dm: Support parent devices with of-platdataSimon Glass1-2/+52
At present of-platdata does not provide parent information. But this is useful for I2C devices, for example, since it allows them to determine which bus they are on. Add support for setting the parent correctly, by storing the parent driver_info index in dtoc and reading this in lists_bind_drivers(). This needs multiple passes since we must process children after their parents already have been bound. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-10-29dm: Use an allocated array for run-time device infoSimon Glass3-10/+28
At present we update the driver_info struct with a pointer to the device that it created (i.e. caused to be bound). This works fine when U-Boot SPL is stored in read-write memory. But on some platforms, such as Intel Apollo Lake, it is not possible to update the data memory. In any case, it is bad form to put this information in a structure that is in the data region, since it expands the size of the binary. Create a new driver_rt structure which holds runtime information about drivers. Update the code to store the device pointer in this instead. Also update the test check that this works. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-10-29dm: test: Add a check that all devices have a dev valueSimon Glass1-0/+1
With of-platdata, the driver_info struct is updated with the device pointer when it is bound. This makes it easy for a device to be found by its driver info with the device_get_by_driver_info() function. Add a test that all devices (except the root device) have such an entry. Fix a bug that the function does not set *devp to NULL on failure, which the documentation asserts. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-10-29dm: core: Allow dm_warn() to be used in SPLSimon Glass2-3/+17
At present this option is disabled in SPL, meaning that warnings are not displayed. It is sometimes useful to see warnings in SPL for debugging purposes. Add a new Kconfig option to permit this. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-10-29dm: Avoid using #ifdef for CONFIG_OF_LIVESimon Glass2-19/+10
At present this option results in a number of #ifdefs due to the presence or absence of the global_data of_root member. Add a few macros to global_data.h to work around this. Update the code accordingly. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-10-27dm: core: Add support for getting node from aliasesMichal Simek1-0/+22
Add support for getting a node/property from aliases. The similar functionality is provided for chosen node and this implemenatation is copy of it. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-10-22syscon: Drop the logging in syscon_get_by_driver_data()Simon Glass1-1/+1
This function can be called when it is not known whether it will find anything. This results in confusing log messages if the device is not found. It is better for the caller to log the failure, if necessary. Drop the logging from this function. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-10-16dm: syscon: Set LOG_CATEGORYSean Anderson1-0/+2
We call log_debug, but do not have a category set. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-10-09Kconfig: Move BOUNCE_BUFFER under driver optionsSimon Glass1-0/+11
This option does not belong at the top level. Move it under generic driver options. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-10-06dm: add cells_count parameter in *_count_phandle_with_argsPatrick Delaunay3-8/+10
The cell_count argument is required when cells_name is NULL. This patch adds this parameter in live tree API - of_count_phandle_with_args - ofnode_count_phandle_with_args - dev_count_phandle_with_args This parameter solves issue when these API is used to count the number of element of a cell without cell name. This parameter allow to force the size cell. For example: count = dev_count_phandle_with_args(dev, "array", NULL, 3); Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-10-05Merge tag 'u-boot-atmel-2021.01-a' of ↵Tom Rini1-0/+22
https://gitlab.denx.de/u-boot/custodians/u-boot-atmel into next First set of u-boot-atmel features for 2021.01 cycle: This feature set includes a new CPU driver for at91 family, new driver for PIT64B hardware timer, support for new at91 family SoC named sama7g5 which adds: clock support, including conversion of the clock tree to CCF; SoC support in mach-at91, pinctrl and mmc drivers update. The feature set also includes updates for mmc driver and some other minor fixes and features regarding building without the old Atmel PIT and the possibility to read a secondary MAC address from a second i2c EEPROM.
2020-09-30regmap: Add support for regmap fieldsJean-Jacques Hiblot1-0/+83
A regmap field is an abstraction available in Linux. It provides to access bitfields in a regmap without having to worry about shifts and masks. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
2020-09-30regmap: Allow devices to specify regmap range start and size in configPratyush Yadav1-1/+5
Some devices need to calculate the regmap base address at runtime. This makes it impossible to use device tree to get the regmap base. Instead, allow devices to specify it in the regmap config. This will create a regmap with a single range that corresponds to the start and size given by the driver. Signed-off-by: Pratyush Yadav <p.yadav@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-09-30regmap: Add regmap_init_mem_range()Pratyush Yadav1-0/+27
Right now, the base of a regmap can only be obtained from the device tree. This makes it impossible for devices which calculate the base at runtime to use a regmap. An example of such a device is the Cadence Sierra PHY. Allow creating a regmap with one range whose start and size can be specified by the driver based on calculations at runtime. Signed-off-by: Pratyush Yadav <p.yadav@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-09-30regmap: Allow left shifting register offset before accessPratyush Yadav1-1/+5
Drivers can configure it to adjust the final read/write location. Signed-off-by: Pratyush Yadav <p.yadav@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-09-30regmap: Allow specifying read/write widthPratyush Yadav1-3/+12
Right now, regmap_read() and regmap_write() read/write a 32-bit value only. To write other lengths, regmap_raw_read() and regmap_raw_write() need to be used. This means that any driver ported from Linux that relies on regmap_{read,write}() to know the size already has to be updated at each callsite. This makes the port harder to maintain. So, allow specifying the read/write width to make it easier to port the drivers, since now the only change needed is when initializing the regmap. Signed-off-by: Pratyush Yadav <p.yadav@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-09-30regmap: zero out the regmap on allocationPratyush Yadav1-1/+2
Some fields will be introduced in the regmap structure that should be set to 0 by default. So, once we allocate a regmap, make sure it is zeroed out to avoid unexpected defaults for those values. Signed-off-by: Pratyush Yadav <p.yadav@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-09-30regmap: Add devm_regmap_init()Jean-Jacques Hiblot1-0/+29
Most of new linux drivers are using managed-API to allocate resources. To ease porting drivers from linux to U-Boot, introduce devm_regmap_init() as a managed API to get a regmap from the device tree. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
2020-09-30dm: syscon: Fix calling dev_dbg with an uninitialized deviceSean Anderson1-1/+1
We can't use dev_dbg here because we haven't bound to the device yet. Use log_debug instead. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com> Tested-by: Patrick Delaunay <patrick.delaunay@st.com>
2020-09-25x86: acpi: Add common Intel ACPI tablesSimon Glass1-0/+9
Add various tables that are common to Intel CPUs. These functions can be used by arch-specific CPU code. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-09-22dm: add cells_count parameter in live DT APIs of_parse_phandle_with_argsPatrick Delaunay2-4/+6
In the live tree API ofnode_parse_phandle_with_args, the cell_count argument must be used when cells_name is NULL. But this argument is not provided to the live DT function of_parse_phandle_with_args even it is provided to fdtdec_parse_phandle_with_args. This patch adds support of the cells_count parameter in dev_ and of_node API to allow migration and support of live DT: - of_parse_phandle_with_args Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-09-22dm: syscon: typo aleradyHeinrich Schuchardt1-3/+7
* Fix typo: %s/alerady/already/. * Add missing 'the'. * Reformat a comment. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-09-22dm: core: add support for device re-parentingClaudiu Beznea1-0/+22
In common clock framework the relation b/w parent and child clocks is determined based on the udevice parent/child information. A clock parent could be changed based on devices needs. In case this is happen the functionalities for clock who's parent is changed are broken. Add a function that reparent a device. This will be used in clk-uclass.c to reparent a clock device. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-08-25dm: core: Add API to read PCI bus-range propertyStefan Roese1-0/+17
Add dev_read_pci_bus_range() to read bus-range property values Signed-off-by: Stefan Roese <sr@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-08-22dm: core: Fix devfdt_get_addr_ptr return valueOvidiu Panait1-1/+3
According to the description of devfdt_get_addr_ptr, this function should return NULL on failure, but currently it returns (void *)FDT_ADDR_T_NONE. Fix this by making devfdt_get_addr_ptr return NULL on failure, as described in the function comments. Also, update the drivers currently checking (void *)FDT_ADDR_T_NONE to check for NULL. Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-08-22dm: fix ofnode_read_addr/size_cells()Heinrich Schuchardt1-6/+14
In the case of the live tree ofnode_read_addr_cells() and ofnode_read_size_cells() return the #address-cells and #size-cells defined in the parent node. With the patch the same is done for a non-live tree. The only consumer of these functions is currently the CFI flash driver. This patch fixes the incorrect parsing of the device tree leading to 'saveenv' failing on qemu_arm64_defconfig. For testing qemu-system-aarch64 has to be called with -drive if=pflash,format=raw,index=1,file=envstore.img to provide the flash memory. envstore.img must be 64 MiB large. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Stefan Roese <sr@denx.de>
2020-07-25dm: core Fix long line in device_bind_common()Simon Glass1-1/+2
Fix an over-length line in this function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-24Revert "Merge tag 'dm-pull-20jul20' of git://git.denx.de/u-boot-dm"Tom Rini1-2/+1
This reverts commit 5d3a21df6694ebd66d5c34c9d62a26edc7456fc7, reversing changes made to 56d37f1c564107e27d873181d838571b7d7860e7. Unfortunately this is causing CI failures: https://travis-ci.org/github/trini/u-boot/jobs/711313649 Signed-off-by: Tom Rini <trini@konsulko.com>
2020-07-20dm: core Fix long line in device_bind_common()Simon Glass1-1/+2
Fix an over-length line in this function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-20dm: core: Don't show an ACPI warning if there is no orderingSimon Glass1-1/+1
Some boards don't care about the ordering of ACPI code fragments. Change the warning to a debug message. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-17acpi: Enable ACPI table generation by default on x86Simon Glass1-1/+1
This should ideally be used by all x86 boards in U-Boot. Enable it by default. If some boards don't use it, the cost is small. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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