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2020-12-18x86: Simplify acpi_device_infer_name()Simon Glass1-24/+3
There is no-longer any need to check if sequence numbers are valid, since this is ensured by driver model. Drop the unwanted logic. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename ..._platdata variables to just ..._platSimon Glass1-1/+1
Try to maintain some consistency between these variables by using _plat as a suffix for them. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename 'platdata' variables to just 'plat'Simon Glass1-2/+2
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>
2020-11-06acpi: Correct reset handling in acpi_device_add_power_res()Simon Glass1-1/+1
If there is no reset line, this still emits ACPI code for the reset GPIO. Fix it by updating the check. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-11-06x86: Allow putting some tables in the bloblistSimon Glass1-2/+2
At present all tables are placed starting at address f0000 in memory, and can be up to 64KB in size. If the tables are very large, this may not provide enough space. Also if the tables point to other tables (such as console log or a ramoops area) then we must allocate other memory anyway. The bloblist is a nice place to put these tables since it is contiguous, which makes it easy to reserve this memory for linux using the 820 tables. Add an option to put some of the tables in the bloblist. For SMBIOS and ACPI, create suitable pointers from the f0000 region to the new location of the tables. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> [bmeng: squashed in http://patchwork.ozlabs.org/project/uboot/patch/ 20201105062407.1.I8091ad931cbbb5e3b6f6ababdf3f8d5db0d17bb9@changeid/] Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2020-09-25acpi: Use I2cSerialBusV2() instead of I2cSerialBus()Simon Glass1-1/+1
Use the correct name of the ACPI structure being created. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-09-25acpi: Add more support for generating processor tablesSimon Glass1-0/+167
This adds tables relating to P-States and C-States. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-09-25acpi: Add support for generating processor tablesSimon Glass1-0/+55
ACPI has a number of CPU-related tables. Add utility functions to write out the basic packages. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-09-25x86: acpi: Support generation of the DBG2 tableSimon Glass1-0/+64
Add an implementation of the DBG2 (Debug Port Table 2) ACPI table. Adjust one of the header includes to be in the correct order, before adding more. Note that the DBG2 table is generic but the PCI UART is x86-specific at present since it assumes an ns16550 UART. It can be generalised later if necessary. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-09-25dm: acpi: Use correct GPIO polarity type in acpi_dp_add_gpio()Simon Glass1-2/+2
This function currently accepts the IRQ-polarity type. Fix it to use the GPIO type instead. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-09-25acpi: Support generating a multi-function _DSM for devicesSimon Glass2-0/+97
Add a function to generate ACPI code for a _DSM method for a device. This includes functions for starting and ending each part of the _DSM. Signed-off-by: Simon Glass <sjg@chromium.org> [bmeng: fix the "new blank line at EOF" git warning] Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2020-09-25acpi: Add support for conditions and return valuesSimon Glass1-0/+68
Add functions to support generating ACPI code for condition checks and return values. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-09-25acpi: Add support for writing a _PRWSimon Glass1-0/+10
A 'Power Resource for Wake' list the resources a device depends on for wake. Add a function to generate this. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-07-17acpi: Support writing named valuesSimon Glass1-0/+49
Allow writing named integers and strings to the generated ACPI code. 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> [bmeng: Fix the "new blank line at EOF" warning] Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-17acpi: Support generation of a deviceSimon Glass1-0/+7
Allow writing an ACPI device to the generated ACPI code. 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> [bmeng: Fix build failures on Sandbox] Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-17acpi: Support generation of a generic registerSimon Glass1-0/+71
Allow writing out a generic register. 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> [bmeng: Fix build failures on Sandbox] Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-17acpi: Support generation of a scopeSimon Glass1-0/+7
Add a function to write a scope to the generated ACPI code. 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: Fix build failures on Sandbox] Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-17dm: acpi: Enhance acpi_get_name()Simon Glass1-0/+106
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>
2020-07-17acpi: Add support for a generic power sequenceSimon Glass1-0/+99
Add a way for devices to enable and disable themselves using ACPI code that updates GPIOs. This takes several timing parameters and supports enable, reset and stop. 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>
2020-07-17acpi: Add support for writing a GPIO power sequenceSimon Glass1-0/+85
Power to some devices is controlled by GPIOs. Add a way to generate ACPI code to enable and disable a GPIO so that this can be handled within an ACPI method. 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>
2020-07-17acpi: Add support for writing a Power ResourceSimon Glass1-0/+22
These are used in ACPI to disable power to various pats of the system when in sleep. Add a way to create a power resource, with the caller finishing off the details. 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>
2020-07-17acpi: Add support for various misc ACPI opcodesSimon Glass1-0/+86
Add more functions to handle some miscellaneous ACPI opcodes. 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>
2020-07-17acpi: Support copying properties from device tree to ACPISimon Glass1-0/+56
Some drivers in Linux support both device tree and ACPI. U-Boot itself uses Linux device-tree bindings for its own configuration but does not use ACPI. It is convenient to copy these values over to the ACPI DP table for passing to linux. Add some convenience functions to help with 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>
2020-07-17acpi: Support writing a GPIOSimon Glass1-0/+23
Allowing writing out a reference to a GPIO within the ACPI output. This can be used by ACPI code to access a GPIO at runtime. 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>
2020-07-17acpi: Support writing Device Properties objects via _DSDSimon Glass2-0/+324
More complex device properties can be provided to drivers via a device-specific data (_DSD) object. To create this we need to build it up in a separate data structure and then generate the ACPI code, due to its recursive nature. Add an implementation of 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>
2020-07-17acpi: Support writing a UUIDSimon Glass1-0/+38
ACPI supports writing a UUID in a special format. Add a function 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>
2020-07-17acpi: Support writing a nameSimon Glass1-0/+96
ACPI supports storing names which are made up of multiple path components. Several special cases are supported. Add a function to emit a name. 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>
2020-07-17acpi: Support writing a stringSimon Glass1-0/+6
ACPI supports storing a simple null-terminated string. Add support for 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>
2020-07-17acpi: Support writing an integerSimon Glass1-0/+51
ACPI supports storing integers in various ways. Add a function 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>
2020-07-17acpigen: Support writing a packageSimon Glass1-0/+12
A package collects together several elements. Add an easy way of writing a package header and updating its length later. 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>
2020-07-17acpigen: Support writing a lengthSimon Glass1-0/+33
It is convenient to write a length value for preceding a block of data. Of course the length is not known or is hard to calculate a priori. So add a way to mark the start on a stack, so the length can be updated when known. 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>
2020-07-17acpi: Support generation of SPI descriptorSimon Glass1-0/+124
Add a function to write a SPI descriptor to the generated ACPI code. 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>
2020-07-17acpi: Support generation of I2C descriptorSimon Glass1-0/+107
Add a function to write a GPIO descriptor to the generated ACPI code. 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>
2020-07-17acpi: Support generation of a GPIO/irq for a deviceSimon Glass1-1/+30
Some devices use interrupts but some use GPIOs. Since these are fully specified in the device tree we can automatically produce the correct ACPI descriptor for a device. Add a function 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>
2020-07-17acpi: Support generation of GPIO descriptorSimon Glass1-0/+151
Add a function to write a GPIO descriptor to the generated ACPI code. 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: Drop comment about the type always being ACPI_GPIO_TYPE_IO] Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-17acpi: Support string outputSimon Glass1-0/+14
Add support for output of strings and streams of bytes. 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>
2020-07-17acpi: Support generation of interrupt descriptorSimon Glass1-0/+119
Add a function to write an interrupt descriptor to the generated ACPI code. 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>
2020-07-17acpi: Support generation of ACPI codeSimon Glass3-0/+41
Add a new file to handle generating ACPI code programatically. This is used when information must be dynamically added to the tables, e.g. the SSDT. Initial support is just for writing simple values. Also add a 'base' value so that the table can be freed. This likely doesn't happen in normal code, but is nice to do in tests. 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>
2020-07-17acpi: Add a way to check device statusSimon Glass1-0/+5
At present U-Boot does not support the different ACPI status values, but it is best to put this logic in a central place. Add a function to get the device status. 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>
2020-07-17acpi: Add a function to get a device path and scopeSimon Glass2-0/+84
Add a function to build up the ACPI path for a device and another for its scope. 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>
2020-05-18common: Drop log.h from common headerSimon Glass1-0/+1
Move this header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-04-30acpi: Add an acpi commandSimon Glass1-0/+1
It is useful to dump ACPI tables in U-Boot to see what has been generated. Add a command to handle this. To allow the command to find the tables, add a position into the global data. Support subcommands to list and dump the tables. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
2020-04-30acpi: Move the xsdt pointer to acpi_ctxSimon Glass1-6/+4
Put this in the context along with the other important pointers. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
2020-04-30acpi: Put table-setup code in its own functionSimon Glass1-0/+82
We always write three basic tables to ACPI at the start. Move this into its own function, along with acpi_fill_header(), so we can write a test for this code. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-04-30acpi: Move acpi_add_table() to generic codeSimon Glass1-0/+61
Move this code to a generic location so that we can test it with sandbox. This requires adding a few new fields to acpi_ctx, so drop the local variables used in the original code. Also use mapmem to avoid pointer-to-address casts which don't work on sandbox. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
2020-04-30acpi: Convert part of acpi_table to use acpi_ctxSimon Glass1-1/+23
The current code uses an address but a pointer would result in fewer casts. Also it repeats the alignment code in a lot of places so this would be better done in a helper function. Update write_acpi_tables() to make use of the new acpi_ctx structure, adding a few helpers to clean things up. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
2020-04-30acpi: Add a method to write tables for a deviceSimon Glass1-3/+10
A device may want to write out ACPI tables to describe itself to Linux. Add a method to permit this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
2020-04-16acpi: Add support for DMARSimon Glass1-0/+31
The DMA Remapping Reporting (DMAR) table contains information about DMA remapping. Add a version simple version of this table with only the minimum fields filled out. i.e. no entries. 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>
2020-04-16acpi: Add a central location for table version numbersSimon Glass2-0/+66
Each ACPI table has its own version number. Add the version numbers in a single function so we can keep them consistent and easily see what versions are supported. Start a new acpi_table file in a generic directory to house this function. We can move things over to this file from x86 as 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>
generated by cgit v1.1 at 2024-09-16 13:01:30 +0000