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* Merge tag 'dm-pull-30oct20' of ↵Tom Rini2020-10-306-45/+126
|\ | | | | | | | | | | | | | | https://gitlab.denx.de/u-boot/custodians/u-boot-dm of-platdata and dtoc improvements sandbox SPL tests binman support for compressed sections
| * dm: Use driver_info index instead of pointerSimon Glass2020-10-291-0/+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>
| * dm: core: Convert #ifdef to if() in root.cSimon Glass2020-10-291-11/+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>
| * dm: Support parent devices with of-platdataSimon Glass2020-10-291-2/+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>
| * dm: Use an allocated array for run-time device infoSimon Glass2020-10-293-10/+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>
| * dm: test: Add a check that all devices have a dev valueSimon Glass2020-10-291-0/+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>
| * dm: core: Allow dm_warn() to be used in SPLSimon Glass2020-10-292-3/+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>
| * dm: Avoid using #ifdef for CONFIG_OF_LIVESimon Glass2020-10-292-19/+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>
* | dm: core: Add support for getting node from aliasesMichal Simek2020-10-271-0/+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>
* syscon: Drop the logging in syscon_get_by_driver_data()Simon Glass2020-10-221-1/+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>
* dm: syscon: Set LOG_CATEGORYSean Anderson2020-10-151-0/+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>
* Kconfig: Move BOUNCE_BUFFER under driver optionsSimon Glass2020-10-091-0/+11
| | | | | | | This option does not belong at the top level. Move it under generic driver options. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: add cells_count parameter in *_count_phandle_with_argsPatrick Delaunay2020-10-063-8/+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>
* Merge tag 'u-boot-atmel-2021.01-a' of ↵WIP/05Oct2020-nextTom Rini2020-10-051-0/+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.
| * dm: core: add support for device re-parentingClaudiu Beznea2020-09-221-0/+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>
* | regmap: Add support for regmap fieldsJean-Jacques Hiblot2020-09-301-0/+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>
* | regmap: Allow devices to specify regmap range start and size in configPratyush Yadav2020-09-301-1/+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>
* | regmap: Add regmap_init_mem_range()Pratyush Yadav2020-09-301-0/+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>
* | regmap: Allow left shifting register offset before accessPratyush Yadav2020-09-301-1/+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>
* | regmap: Allow specifying read/write widthPratyush Yadav2020-09-301-3/+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>
* | regmap: zero out the regmap on allocationPratyush Yadav2020-09-301-1/+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>
* | regmap: Add devm_regmap_init()Jean-Jacques Hiblot2020-09-301-0/+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>
* | dm: syscon: Fix calling dev_dbg with an uninitialized deviceSean Anderson2020-09-301-1/+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>
* | x86: acpi: Add common Intel ACPI tablesSimon Glass2020-09-251-0/+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>
* | dm: add cells_count parameter in live DT APIs of_parse_phandle_with_argsPatrick Delaunay2020-09-222-4/+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>
* | dm: syscon: typo aleradyHeinrich Schuchardt2020-09-221-3/+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>
* dm: core: Add API to read PCI bus-range propertyStefan Roese2020-08-251-0/+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>
* dm: core: Fix devfdt_get_addr_ptr return valueOvidiu Panait2020-08-221-1/+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>
* dm: fix ofnode_read_addr/size_cells()Heinrich Schuchardt2020-08-221-6/+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>
* dm: core Fix long line in device_bind_common()Simon Glass2020-07-241-1/+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>
* Revert "Merge tag 'dm-pull-20jul20' of git://git.denx.de/u-boot-dm"Tom Rini2020-07-241-2/+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>
* dm: core Fix long line in device_bind_common()Simon Glass2020-07-201-1/+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>
* dm: core: Don't show an ACPI warning if there is no orderingSimon Glass2020-07-201-1/+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>
* acpi: Enable ACPI table generation by default on x86Simon Glass2020-07-171-1/+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>
* dm: acpi: Add support for the NHLT tableSimon Glass2020-07-171-0/+15
| | | | | | | | | | | | The Intel Non-High-Definition-Audio Link Table (NHLT) table describes the audio codecs and connections in a system. Various devices can contribute information to produce the table. Add core support for this, based on a structure which is built up through calls to the driver. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
* dm: core: Add a way of overriding the ACPI device pathSimon Glass2020-07-171-0/+19
| | | | | | | | | Some devices such as GPIO need to override the normal path that would be generated by driver model. Add a device-tree property for this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
* acpi: Add an acpi command to list/dump generated ACPI itemsSimon Glass2020-07-171-0/+16
| | | | | | | | | | Add a command that shows the individual blocks of data generated by each device, effectively splitting the full table into its component parts. This can be helpful for debugging. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* dm: acpi: Enhance acpi_get_name()Simon Glass2020-07-171-2/+11
| | | | | | | | | | | | | | | | | | | For many device types it is possible to figure out the name just by looking at its uclass or parent. Add a function to handle this, since it allows us to cover the vast majority of cases automatically. However it is sometimes impossible to figure out an ACPI name for a device just by looking at its uclass. For example a touch device may have a vendor-specific name. Add a new "acpi,name" property to allow a custom name to be created. With this new feature we can drop the get_name() methods in the sandbox I2C and SPI drivers. They were only added for testing purposes. Update the tests to use the new values. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* acpi: Add support for DSDT generationSimon Glass2020-07-171-1/+24
| | | | | | | | | | | Some devices need to inject extra code into the Differentiated System Descriptor Table (DSDT). Add a method to handle this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> [bmeng: correct one typo in inject_dsdt() comments] Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
* acpi: Support ordering SSDT data by deviceSimon Glass2020-07-171-0/+84
| | | | | | | | | | Add a /chosen property to control the order in which the data appears in the SSDT. This allows matching up U-Boot's output from a dump of the known-good data obtained from within Linux. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* acpi: Record the items added to SSDTSimon Glass2020-07-171-4/+79
| | | | | | | | | | | | It is useful to be able to control the order of data written to the SSDT so that we can compare the output against known-good kernel dumps. Add code to record each item that is added along with the device that added it. That allows us to reorder things later if needed. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* acpi: Add support for SSDT generationSimon Glass2020-07-171-0/+14
| | | | | | | | | Some devices need to generate code for the Secondary System Descriptor Table (SSDT). Add a method to handle this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* dm: core: Add an ACPI name for the root nodeSimon Glass2020-07-171-0/+13
| | | | | | | | This always has a fixed ACPI name so add it as a driver function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* core: extend struct driver_info to point to deviceWalter Lozano2020-07-092-3/+27
| | | | | | | | | | | | | | Currently when creating an U_BOOT_DEVICE entry a struct driver_info is declared, which contains the data needed to instantiate the device. However, the actual device is created at runtime and there is no proper way to get the device based on its struct driver_info. This patch extends struct driver_info adding a pointer to udevice which is populated during the bind process, allowing to generate a set of functions to get the device based on its struct driver_info. Signed-off-by: Walter Lozano <walter.lozano@collabora.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* core: drop const for struct driver_infoWalter Lozano2020-07-092-2/+2
| | | | | | | | | In order to prepare for a new support of phandle when OF_PLATDATA is used drop the const for struct driver_info as this struct will need to be updated on runtime. Signed-off-by: Walter Lozano <walter.lozano@collabora.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* drivers: rename drivers to match compatible stringWalter Lozano2020-07-091-2/+2
| | | | | | | | | | | | | | | | | When using OF_PLATDATA, the bind process between devices and drivers is performed trying to match compatible string with driver names. However driver names are not strictly defined, and also there are different names used when declaring a driver with U_BOOT_DRIVER, the name of the symbol used in the linker list and the used in the struct driver_info. In order to make things a bit more clear, rename the drivers names. This will also help for further OF_PLATDATA improvements, such as checking for valid driver names. Signed-off-by: Walter Lozano <walter.lozano@collabora.com> Reviewed-by: Simon Glass <sjg@chromium.org> Add a fix for sandbox of-platdata to avoid using an invalid ANSI colour: Signed-off-by: Simon Glass <sjg@chromium.org>
* cmd: dm: Fixed/Added DM driver listing subcommandsNiel Fourie2020-07-071-1/+54
| | | | | | | | | | | | | | | | | | Renamed dm "drivers" subcommand to "compat" (as it listed compatibility strings) and prevent it from segfaulting when drivers have no of_match populated. Added a new "drivers" subcommand to dump a list of all known DM drivers and for each, their uclass id, uclass driver and names of attached devices. Added a new "static" subcommand to dump a list of DM drivers with statically defined platform data. Signed-off-by: Niel Fourie <lusus@denx.de> Cc: Simon Glass <sjg@chromium.org> Cc: Sean Anderson <seanga2@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* dm: Fix error handling for dev_read_addr_ptrSean Anderson2020-07-011-1/+1
| | | | | | | | | | | | dev_read_addr_ptr had different semantics depending on whether OF_LIVE was enabled. This patch converts both implementations to return NULL on error, and converts all call sites which check for FDT_ADDR_T_NONE to check for NULL instead. This patch also removes the call to map_physmem, since we have dev_remap_addr* for those semantics. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* dm: Add support for simple-pm-busSean Anderson2020-07-013-0/+64
| | | | | | | | | | This type of bus is used in Linux to designate buses which have power domains and/or clocks which need to be enabled before their child devices can be used. Because power domains are automatically enabled before probing in U-Boot, we just need to enable any clocks present. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* dm: core: gracefully handle alias seq without ofMarcel Ziswiler2020-06-301-1/+3
| | | | | | Gracefully handle alias seq in the platform data rather than OF case. Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com>
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