- 22 7月, 2015 38 次提交
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由 Simon Glass 提交于
Several functions in this file should be marked as static. Update them. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
Add support for a driver which sets up DRAM and can return information about the amount of RAM available. This is a first step towards moving RAM init to driver model. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
This bloats the code size quite a bit and is less useful in SPL where there is no command line. Avoid including this code in SPL. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
This functionality may be useful for setting up regulators early during boot. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
It is a common requirement to update some PMIC registers. Provide some simple convenience functions to do this. Signed-off-by: NSimon Glass <sjg@chromium.org> Tested-by: NPrzemyslaw Marczak <p.marczak@samsung.com> Acked-by: NPrzemyslaw Marczak <p.marczak@samsung.com>
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由 Simon Glass 提交于
To reduce unnecessary code size in an uncommon code path, use debug() where possible(). The driver returns an error which indicates failure. Signed-off-by: NSimon Glass <sjg@chromium.org> Tested-by: NPrzemyslaw Marczak <p.marczak@samsung.com> Acked-by: NPrzemyslaw Marczak <p.marczak@samsung.com>
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由 Simon Glass 提交于
The device tree provides information about which regulators should be on at boot, or always on. Use this to set them up automatically. Signed-off-by: NSimon Glass <sjg@chromium.org> Tested-by: NPrzemyslaw Marczak <p.marczak@samsung.com> Acked-by: NPrzemyslaw Marczak <p.marczak@samsung.com>
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由 Simon Glass 提交于
The regulator_autoset() function mixes printf() output and PMIC adjustment code. It provides a boolean to control the output. It is better to avoid missing logic and output, and this permits a smaller SPL code size. So split the output into a separate function. Also rename the function to have a by_name() suffix, since we would like to be able to pass a device when we know it, and thus avoid the name search. Signed-off-by: NSimon Glass <sjg@chromium.org> Tested-by: NPrzemyslaw Marczak <p.marczak@samsung.com> Acked-by: NPrzemyslaw Marczak <p.marczak@samsung.com>
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由 Simon Glass 提交于
Decide when the regulator is set up whether we want to auto-set the voltage or current. This avoids the complex logic spilling into the processing code. Signed-off-by: NSimon Glass <sjg@chromium.org> Tested-by: NPrzemyslaw Marczak <p.marczak@samsung.com> Acked-by: NPrzemyslaw Marczak <p.marczak@samsung.com>
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由 Simon Glass 提交于
This is not user input (i.e. from the command line). It should be possible to get the case correct and avoid the case-insensitive match. This will help avoid sloppy device tree setups. Signed-off-by: NSimon Glass <sjg@chromium.org> Tested-by: NPrzemyslaw Marczak <p.marczak@samsung.com> Acked-by: NPrzemyslaw Marczak <p.marczak@samsung.com>
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由 Simon Glass 提交于
It took a little while to figure this out, so this patch adds documentation to help the next person who needs to do this. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
Enable MMC using driver model in SPL for consistency with U-Boot proper. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
Allow read errors to be diagnosed more easily. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
Add basic support for MMC, providing a uclass which can set up an MMC device. This allows MMC drivers to move to using driver model. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
Add a few messages to indicate progress and failure. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
Add a simple driver which allows use of LEDs attached to GPIOs. The linux device tree binding is used. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
Add a simple uclass for LEDs, so that these can be controlled by the device tree and activated when needed. LEDs are referred to by their label. This implementation requires a driver for each type of LED (e.g GPIO, I2C). Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
Many SoCs have a number of system controllers which are dealt with as a group by a single driver. It is a pain to have to add lots of compatible strings and/or separate drivers for each. Instead we can identify the controllers by a number and request the address of the one we want. Add a simple implementation of this which can be used by SoC driver code. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
Add a simple implementaton of register maps, supporting only direct I/O for now. This can be enhanced later to support buses which have registers, such as I2C, SPI and PCI. It allows drivers which can operate with multiple buses to avoid dealing with the particulars of register access on that bus. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
This function can be used for testing to manually request a GPIO for use, without resorting to the legacy GPIO API. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
Provide a driver-model function to look up a GPIO name. Make the standard function use it. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
Now that we support driver model in SPL, allow GPIO drivers to be used there also. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
This parameter is named 'seq' but should be named 'of_offset'. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
In some rare cases it is useful to be able to locate a device given a device tree node offset. An example is when you have an alias that points to a node and you want to find the associated device. The device may be SPI, MMC or something else, but you don't need to know the uclass to find it. Add a function to do a global search for a device, given its device tree offset. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
To avoid bloating SPL code, use debug() where possible in the driver model core code. The error code is already returned, and can be investigated as needed. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
In SPL it is sometimes useful to be able to obtain a dump of the current driver model state. Since commands are not available, provide a way to directly call the functions to output this information. Adjust the existing commands to use these functions. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
At present printf() skips output if it can see there is no console. This is really just an optimisation, and is not necessary. Also it is currently incorrect in some cases. Rather than update the logic, just remove it so that we don't need to keep it in sync. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
When there is no console ready, allow the debug UART to be used for output. This makes debugging of early code considerably easier. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
This does not actually help any current arch. For x86 it makes it harder to call (requires stack) and for ARM it has no effect. Drop it. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
U-Boot uses structures for hardware access so it is important that these structures are correct. Add a way of asserting that a structure member is at a particular offset. This can be created using the datasheet for the hardware. This implementation uses Static_assert() since BUILD_BUG_ON() only works within functions. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
Driver-model I2C drivers can be picked up by the linker script rule for legacy drivers. Change the order to avoid this. We could make the legacy code depend on !CONFIG_DM_I2C but that is not necessary and it is good to keep conditions to a minimum. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
The SPL device tree size must be minimised to save memory. Only include properties that are needed by SPL - this is determined by the presence of the "u-boot,dm-pre-reloc" property. Also remove a predefined list of unused properties from the nodes that remain. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
This tool allows us to extract subsets of a device tree file. It is used by the SPL vuild, which needs to cut down the device tree size for use in limited memory. This tool was originally written for libfdt but it has not been accepted upstream, so for now, include it in U-Boot. Several utilfdt library functions been included inline here. If fdtgrep is eventually accepted in libfdt then we can bring that version of libfdt in here, and drop fdtgrep (requiring that fdtgrep is provided by the user). If it is not accepted then another approach would be to write a special tool for chopping down device tree files for SPL. While it would use the same libfdt support, it would be less code than fdtgrep.c because it would not have general-purpose functions. Another approach (which was used with v1 of this series) is to sprinkler all the device tree files with #ifdef. I don't like that idea. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
These have been sent upstream but not accepted to libfdt. For now, bring these into U-Boot to enable fdtgrep to operate. We will use fdtgrep to cut device tree files down for SPL. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
Property names are stored in a string table. When a node property is removed, the string table is not updated since other nodes may have a property with the same name. Thus it is possible for the string table to build up a number of unused strings. Add a function to remove these. This works by building a new device tree from the old one, adding strings one by one as needed. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
Offer to display the available image types in help. Also, rather than hacking the genimg_get_type_id() function to display a list of types, do this in the tool. Also, sort the list. The list of image types is quite long, and hard to discover. Print it out when we show help information. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
Provide access to the dhrystone benchmark command. Signed-off-by: NSimon Glass <sjg@chromium.org>
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由 Simon Glass 提交于
Drystone provides a convenient sanity check that the CPU is running at full speed. Add this as a command which can be enabled as needed. Note: I investigated using Coremark for this but there was a license agreement and I could not work out if it was GPL-compatible. Signed-off-by: NSimon Glass <sjg@chromium.org>
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- 21 7月, 2015 2 次提交
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由 Zhichun Hua 提交于
When final MMU table is setup in DDR, TCR attributes must match those of the memroy for cacheability and shareability. Signed-off-by: NZhichun Hua <zhichun.hua@freescale.com> Signed-off-by: NYork Sun <yorksun@freescale.com>
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