u-boot.git/arch/x86/lib, branch v2020.01

common: Move board_get_usable_ram_top() out of common.h

2019-12-02T23:25:04Z

Move this function into init.h which seems to be designed for this sort of thing. Also update the header to declare struct global_data so that it can be included without global_data.h being needed. Signed-off-by: Simon Glass Reviewed-by: Tom Rini

common: Move enable/disable_interrupts out of common.h

2019-12-02T23:25:01Z

Move these two functions into the irq_funcs.h header file. Also move interrupt_handler_t as this is used by the irq_install_handler() function. Signed-off-by: Simon Glass Reviewed-by: Tom Rini

common: Move interrupt functions into a new header

2019-12-02T23:25:00Z

These functions do not use driver model but are fairly widely used in U-Boot. But it is not clear that they will use driver model anytime soon, so we don't want to label them as 'legacy'. Move them to a new irq_func.h header file. Avoid the name 'irq.h' since it is widely used in U-Boot already. Signed-off-by: Simon Glass Reviewed-by: Tom Rini

common: Move some cache and MMU functions out of common.h

2019-12-02T23:23:55Z

These functions belong in cpu_func.h. Another option would be cache.h but that code uses driver model and we have not moved these cache functions to use driver model. Since they are CPU-related it seems reasonable to put them here. Move them over. Signed-off-by: Simon Glass Reviewed-by: Tom Rini

common: Move checkcpu() out of common.h

2019-12-02T23:23:14Z

This function belongs in cpu_func.h so move it over. Signed-off-by: Simon Glass Reviewed-by: Tom Rini

x86: Quieten TPL's jump_to_image_no_args()

2019-11-02T23:20:29Z

We already a message indicating that U-Boot is about to jump to SPL, so make this one a debug() to reduce code size. Signed-off-by: Simon Glass Reviewed-by: Bin Meng

x86: Don't print CPU info in TPL

2019-11-02T23:20:28Z

We don't need to do this and it is done (in more detail) in U-Boot proper. Drop this to save code space. Signed-off-by: Simon Glass Reviewed-by: Bin Meng

x86: Move CPU init to before spl_init()

2019-11-02T23:20:28Z

At present we call spl_init() before identifying the CPU. This is not a good idea - e.g. if bootstage is enabled then it will try to set up the timer which works better if the CPU is identified. Put explicit code at each entry pointer to identify the CPU. Signed-off-by: Simon Glass Reviewed-by: Bin Meng

x86: tpl: Add a fake PCI bus

2019-11-02T23:20:28Z

In TPL we try to minimise code size so do not include the PCI subsystem. We can use fixed BARs and drivers can directly program the devices that they need. However we do need to bind the devices on the PCI bus and without PCI this does not ordinarily happen. As a work-around, define a fake PCI bus which does this binding, but no other PCI operations. This is a convenient way to ensure that we can use the same device tree for TPL, SPL and U-Boot proper: TPL - CONFIG_TPL_PCI is not set (no auto-config, fake PCI bus) SPL - CONFIG_SPL_PCI is set (no auto-config but with real PCI bus) U-Boot - CONFIG_PCI is set (full auto-config after relocation) Signed-off-by: Simon Glass Reviewed-by: Bin Meng

x86: spl: Support init of a PUNIT

2019-11-02T23:20:27Z

The x86 power unit handles power management. Support initing this device which is modelled as a new type of system controller since there are no operations needed. Signed-off-by: Simon Glass Reviewed-by: Bin Meng