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u-boot/test/dm/test.dts

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dm: Add basic tests Add some tests of driver model functionality. Coverage includes: - basic init - binding of drivers to devices using platform_data - automatic probing of devices when referenced - availability of platform data to devices - lifecycle from bind to probe to remove to unbind - renumbering within a uclass when devices are probed/removed - calling driver-defined operations - deactivation of drivers when removed - memory leak across creation and destruction of drivers/uclasses - uclass init/destroy methods - automatic probe/remove of children/parents when needed This function is enabled for sandbox, using CONFIG_DM_TEST. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-02-26 22:59:21 +00:00
/dts-v1/;
/ {
model = "sandbox";
compatible = "sandbox";
#address-cells = <1>;
#size-cells = <0>;
dm: Allow drivers to be marked 'before relocation' Driver model currently only operates after relocation is complete. In this state U-Boot typically has a small amount of memory available. In adding support for driver model prior to relocation we must try to use as little memory as possible. In addition, on some machines the memory has not be inited and/or the CPU is not running at full speed or the data cache is off. These can reduce execution performance, so the less initialisation that is done before relocation the better. An immediately-obvious improvement is to only initialise drivers which are actually going to be used before relocation. On many boards the only such driver is a serial UART, so this provides a very large potential benefit. Allow drivers to mark themselves as 'pre-reloc' which means that they will be initialised prior to relocation. This can be done either with a driver flag or with a 'dm,pre-reloc' device tree property. To support this, the various dm scanning function now take a 'pre_reloc_only' parameter which indicates that only drivers marked pre-reloc should be bound. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-07-23 12:55:03 +00:00
aliases {
console = &uart0;
dm: Introduce device sequence numbering In U-Boot it is pretty common to number devices from 0 and access them on the command line using this numbering. While it may come to pass that we will move away from this numbering, the possibility seems remote at present. Given that devices within a uclass will have an implied numbering, it makes sense to build this into driver model as a core feature. The cost is fairly small in terms of code and data space. With each uclass having numbered devices we can ask for SPI port 0 or serial port 1 and receive a single device. Devices typically request a sequence number using aliases in the device tree. These are resolved when the device is probed, to deal with conflicts. Sequence numbers need not be sequential and holes are permitted. At present there is no support for sequence numbers using static platform data. It could easily be added to 'struct driver_info' if needed, but it seems better to add features as we find a use for them, and the use of -1 to mean 'no sequence' makes the default value somewhat painful. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-07-23 12:55:12 +00:00
testfdt6 = "/e-test";
dm: Allow drivers to be marked 'before relocation' Driver model currently only operates after relocation is complete. In this state U-Boot typically has a small amount of memory available. In adding support for driver model prior to relocation we must try to use as little memory as possible. In addition, on some machines the memory has not be inited and/or the CPU is not running at full speed or the data cache is off. These can reduce execution performance, so the less initialisation that is done before relocation the better. An immediately-obvious improvement is to only initialise drivers which are actually going to be used before relocation. On many boards the only such driver is a serial UART, so this provides a very large potential benefit. Allow drivers to mark themselves as 'pre-reloc' which means that they will be initialised prior to relocation. This can be done either with a driver flag or with a 'dm,pre-reloc' device tree property. To support this, the various dm scanning function now take a 'pre_reloc_only' parameter which indicates that only drivers marked pre-reloc should be bound. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-07-23 12:55:03 +00:00
};
uart0: serial {
compatible = "sandbox,serial";
u-boot,dm-pre-reloc;
};
dm: Add basic tests Add some tests of driver model functionality. Coverage includes: - basic init - binding of drivers to devices using platform_data - automatic probing of devices when referenced - availability of platform data to devices - lifecycle from bind to probe to remove to unbind - renumbering within a uclass when devices are probed/removed - calling driver-defined operations - deactivation of drivers when removed - memory leak across creation and destruction of drivers/uclasses - uclass init/destroy methods - automatic probe/remove of children/parents when needed This function is enabled for sandbox, using CONFIG_DM_TEST. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-02-26 22:59:21 +00:00
a-test {
reg = <0>;
compatible = "denx,u-boot-fdt-test";
dm: Use an explicit expect value in core tests Rather than reusing the 'reg' property, use an explicit property for the expected ping value used in testing. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-07-23 12:54:57 +00:00
ping-expect = <0>;
dm: Add basic tests Add some tests of driver model functionality. Coverage includes: - basic init - binding of drivers to devices using platform_data - automatic probing of devices when referenced - availability of platform data to devices - lifecycle from bind to probe to remove to unbind - renumbering within a uclass when devices are probed/removed - calling driver-defined operations - deactivation of drivers when removed - memory leak across creation and destruction of drivers/uclasses - uclass init/destroy methods - automatic probe/remove of children/parents when needed This function is enabled for sandbox, using CONFIG_DM_TEST. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-02-26 22:59:21 +00:00
ping-add = <0>;
dm: Allow drivers to be marked 'before relocation' Driver model currently only operates after relocation is complete. In this state U-Boot typically has a small amount of memory available. In adding support for driver model prior to relocation we must try to use as little memory as possible. In addition, on some machines the memory has not be inited and/or the CPU is not running at full speed or the data cache is off. These can reduce execution performance, so the less initialisation that is done before relocation the better. An immediately-obvious improvement is to only initialise drivers which are actually going to be used before relocation. On many boards the only such driver is a serial UART, so this provides a very large potential benefit. Allow drivers to mark themselves as 'pre-reloc' which means that they will be initialised prior to relocation. This can be done either with a driver flag or with a 'dm,pre-reloc' device tree property. To support this, the various dm scanning function now take a 'pre_reloc_only' parameter which indicates that only drivers marked pre-reloc should be bound. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-07-23 12:55:03 +00:00
u-boot,dm-pre-reloc;
dm: Add basic tests Add some tests of driver model functionality. Coverage includes: - basic init - binding of drivers to devices using platform_data - automatic probing of devices when referenced - availability of platform data to devices - lifecycle from bind to probe to remove to unbind - renumbering within a uclass when devices are probed/removed - calling driver-defined operations - deactivation of drivers when removed - memory leak across creation and destruction of drivers/uclasses - uclass init/destroy methods - automatic probe/remove of children/parents when needed This function is enabled for sandbox, using CONFIG_DM_TEST. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-02-26 22:59:21 +00:00
};
junk {
reg = <1>;
compatible = "not,compatible";
};
no-compatible {
reg = <2>;
};
b-test {
reg = <3>;
compatible = "denx,u-boot-fdt-test";
dm: Use an explicit expect value in core tests Rather than reusing the 'reg' property, use an explicit property for the expected ping value used in testing. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-07-23 12:54:57 +00:00
ping-expect = <3>;
dm: Add basic tests Add some tests of driver model functionality. Coverage includes: - basic init - binding of drivers to devices using platform_data - automatic probing of devices when referenced - availability of platform data to devices - lifecycle from bind to probe to remove to unbind - renumbering within a uclass when devices are probed/removed - calling driver-defined operations - deactivation of drivers when removed - memory leak across creation and destruction of drivers/uclasses - uclass init/destroy methods - automatic probe/remove of children/parents when needed This function is enabled for sandbox, using CONFIG_DM_TEST. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-02-26 22:59:21 +00:00
ping-add = <3>;
};
some-bus {
#address-cells = <1>;
#size-cells = <0>;
dm: Provide a function to scan child FDT nodes At present only root nodes in the device tree are scanned for devices. But some devices can have children. For example a SPI bus may have several children for each of its chip selects. Add a function which scans subnodes and binds devices for each one. This can be used for the root node scan also, so change it. A device can call this function in its bind() or probe() methods to bind its children. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-07-23 12:55:18 +00:00
compatible = "denx,u-boot-test-bus";
dm: Introduce device sequence numbering In U-Boot it is pretty common to number devices from 0 and access them on the command line using this numbering. While it may come to pass that we will move away from this numbering, the possibility seems remote at present. Given that devices within a uclass will have an implied numbering, it makes sense to build this into driver model as a core feature. The cost is fairly small in terms of code and data space. With each uclass having numbered devices we can ask for SPI port 0 or serial port 1 and receive a single device. Devices typically request a sequence number using aliases in the device tree. These are resolved when the device is probed, to deal with conflicts. Sequence numbers need not be sequential and holes are permitted. At present there is no support for sequence numbers using static platform data. It could easily be added to 'struct driver_info' if needed, but it seems better to add features as we find a use for them, and the use of -1 to mean 'no sequence' makes the default value somewhat painful. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-07-23 12:55:12 +00:00
reg = <3>;
dm: Use an explicit expect value in core tests Rather than reusing the 'reg' property, use an explicit property for the expected ping value used in testing. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-07-23 12:54:57 +00:00
ping-expect = <4>;
dm: Add basic tests Add some tests of driver model functionality. Coverage includes: - basic init - binding of drivers to devices using platform_data - automatic probing of devices when referenced - availability of platform data to devices - lifecycle from bind to probe to remove to unbind - renumbering within a uclass when devices are probed/removed - calling driver-defined operations - deactivation of drivers when removed - memory leak across creation and destruction of drivers/uclasses - uclass init/destroy methods - automatic probe/remove of children/parents when needed This function is enabled for sandbox, using CONFIG_DM_TEST. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-02-26 22:59:21 +00:00
ping-add = <4>;
dm: Provide a function to scan child FDT nodes At present only root nodes in the device tree are scanned for devices. But some devices can have children. For example a SPI bus may have several children for each of its chip selects. Add a function which scans subnodes and binds devices for each one. This can be used for the root node scan also, so change it. A device can call this function in its bind() or probe() methods to bind its children. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-07-23 12:55:18 +00:00
c-test@5 {
dm: Add basic tests Add some tests of driver model functionality. Coverage includes: - basic init - binding of drivers to devices using platform_data - automatic probing of devices when referenced - availability of platform data to devices - lifecycle from bind to probe to remove to unbind - renumbering within a uclass when devices are probed/removed - calling driver-defined operations - deactivation of drivers when removed - memory leak across creation and destruction of drivers/uclasses - uclass init/destroy methods - automatic probe/remove of children/parents when needed This function is enabled for sandbox, using CONFIG_DM_TEST. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-02-26 22:59:21 +00:00
compatible = "denx,u-boot-fdt-test";
reg = <5>;
dm: Provide a function to scan child FDT nodes At present only root nodes in the device tree are scanned for devices. But some devices can have children. For example a SPI bus may have several children for each of its chip selects. Add a function which scans subnodes and binds devices for each one. This can be used for the root node scan also, so change it. A device can call this function in its bind() or probe() methods to bind its children. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-07-23 12:55:18 +00:00
ping-expect = <5>;
dm: Add basic tests Add some tests of driver model functionality. Coverage includes: - basic init - binding of drivers to devices using platform_data - automatic probing of devices when referenced - availability of platform data to devices - lifecycle from bind to probe to remove to unbind - renumbering within a uclass when devices are probed/removed - calling driver-defined operations - deactivation of drivers when removed - memory leak across creation and destruction of drivers/uclasses - uclass init/destroy methods - automatic probe/remove of children/parents when needed This function is enabled for sandbox, using CONFIG_DM_TEST. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-02-26 22:59:21 +00:00
ping-add = <5>;
};
dm: Provide a function to scan child FDT nodes At present only root nodes in the device tree are scanned for devices. But some devices can have children. For example a SPI bus may have several children for each of its chip selects. Add a function which scans subnodes and binds devices for each one. This can be used for the root node scan also, so change it. A device can call this function in its bind() or probe() methods to bind its children. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-07-23 12:55:18 +00:00
c-test@0 {
compatible = "denx,u-boot-fdt-test";
reg = <0>;
ping-expect = <6>;
ping-add = <6>;
};
c-test@1 {
compatible = "denx,u-boot-fdt-test";
reg = <1>;
ping-expect = <7>;
ping-add = <7>;
};
dm: Add basic tests Add some tests of driver model functionality. Coverage includes: - basic init - binding of drivers to devices using platform_data - automatic probing of devices when referenced - availability of platform data to devices - lifecycle from bind to probe to remove to unbind - renumbering within a uclass when devices are probed/removed - calling driver-defined operations - deactivation of drivers when removed - memory leak across creation and destruction of drivers/uclasses - uclass init/destroy methods - automatic probe/remove of children/parents when needed This function is enabled for sandbox, using CONFIG_DM_TEST. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-02-26 22:59:21 +00:00
};
d-test {
dm: Introduce device sequence numbering In U-Boot it is pretty common to number devices from 0 and access them on the command line using this numbering. While it may come to pass that we will move away from this numbering, the possibility seems remote at present. Given that devices within a uclass will have an implied numbering, it makes sense to build this into driver model as a core feature. The cost is fairly small in terms of code and data space. With each uclass having numbered devices we can ask for SPI port 0 or serial port 1 and receive a single device. Devices typically request a sequence number using aliases in the device tree. These are resolved when the device is probed, to deal with conflicts. Sequence numbers need not be sequential and holes are permitted. At present there is no support for sequence numbers using static platform data. It could easily be added to 'struct driver_info' if needed, but it seems better to add features as we find a use for them, and the use of -1 to mean 'no sequence' makes the default value somewhat painful. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-07-23 12:55:12 +00:00
reg = <3>;
ping-expect = <6>;
ping-add = <6>;
compatible = "google,another-fdt-test";
};
e-test {
reg = <3>;
dm: Use an explicit expect value in core tests Rather than reusing the 'reg' property, use an explicit property for the expected ping value used in testing. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-07-23 12:54:57 +00:00
ping-expect = <6>;
dm: Add basic tests Add some tests of driver model functionality. Coverage includes: - basic init - binding of drivers to devices using platform_data - automatic probing of devices when referenced - availability of platform data to devices - lifecycle from bind to probe to remove to unbind - renumbering within a uclass when devices are probed/removed - calling driver-defined operations - deactivation of drivers when removed - memory leak across creation and destruction of drivers/uclasses - uclass init/destroy methods - automatic probe/remove of children/parents when needed This function is enabled for sandbox, using CONFIG_DM_TEST. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-02-26 22:59:21 +00:00
ping-add = <6>;
compatible = "google,another-fdt-test";
};
base-gpios {
compatible = "sandbox,gpio";
gpio-bank-name = "a";
num-gpios = <20>;
};
extra-gpios {
compatible = "sandbox,gpio";
gpio-bank-name = "b";
num-gpios = <10>;
};
};
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