starfive-tech/u-boot.git/arch/x86/cpu/Makefile, branch rtthread_AMP

x86: Don't enable SMP in SPL

2020-07-20T01:46:46+00:00

SMP should be set up in U-Boot where possible, not SPL. Disable it in SPL. For 64-bit U-Boot we should find a way to allow SMP operations in U-Boot, but this is somewhat more complicated. For now that is disabled too. Signed-off-by: Simon Glass Reviewed-by: Bin Meng Reviewed-by: Wolfgang Wallner

x86: coreboot: Allow building an SPL image

2020-05-04T07:28:28+00:00

Make a few adjustments to allow us to build an SPL image for coreboot. Signed-off-by: Simon Glass Reviewed-by: Bin Meng Tested-by: Bin Meng

x86: Add support for ACPI general-purpose events

2020-02-07T14:46:35+00:00

ACPI GPEs are used to signal interrupts from peripherals that are accessed via ACPI. In U-Boot these are modelled as interrupts using a separate interrupt controller. Configuration is via the device tree. Add a simple driver for this. Signed-off-by: Simon Glass Reviewed-by: Bin Meng

x86: apl: Add Kconfig and Makefile

2019-12-15T03:44:29+00:00

Add basic plumbing to allow Apollo Lake support to be used. Signed-off-by: Simon Glass Reviewed-by: Bin Meng

x86: Move qemu CPU fixup function into its own file

2019-12-15T03:44:25+00:00

This function is specific to qemu so it seems best to keep it separate from the generic code. Move it out to a new file and update the condition to use if() instead of #ifdef Signed-off-by: Simon Glass Reviewed-by: Bin Meng

x86: Allow interrupt to happen once

2019-12-15T03:44:16+00:00

At present the interrupt table is included in all phases of U-Boot. Allow it to be omitted, e.g. in TPL, to reduce size. Signed-off-by: Simon Glass Reviewed-by: Bin Meng

x86: cpu: Don't include the cpu driver in TPL

2019-10-08T05:57:49+00:00

We don't need this driver very early in boot and it adds code size. Drop it. Signed-off-by: Simon Glass Reviewed-by: Bin Meng

x86: Add new slimbootloader CPU type

2019-08-09T14:24:02+00:00

This slimbootloader CPU type is to enable U-Boot as a payload which runs on top of Slim Bootloader (https://github.com/slimbootloader). The Slim Bootloader is designed with multi-stage architecture for the execution from reset vector to OS booting, and supports QEMU, Apollolake, Whiskeylake and Coffeelake platforms consuming Intel FSP (https://github.com/IntelFsp) for silicon initialization including CAR and memory initialization. The Slim Bootloader generates new HOB (Hand Off Block) which are serial port info, memory map info, performance data info and so on, and passes it to a Payload. U-Boot as a payload will use these HOB information for basic initialization such as serial console. As an initial commit, - Add CONFIG_SYS_SLIMBOOTLOADER to enable slimbootloader CPU type - Add new arch/x86/cpu/slimbootloader directory with minimum codes - Get hob_list pointer from Slim Bootloader Signed-off-by: Aiden Park Reviewed-by: Bin Meng Reviewed-by: Andy Shevchenko Tested-by: Bin Meng

x86: Add support for starting from SPL/TPL

2019-05-08T05:02:13+00:00

When a previous phase of U-Boot has run we need to adjust the init of subsequent states to avoid messing up the CPU state. Add a new version of the start logic for SPL, when it boots from TPL (start_from tpl.c) and a new version for U-Boot when it boots from SPL. Signed-off-by: Simon Glass Reviewed-by: Bin Meng

x86: make the LAPIC / IOAPIC construct switchable with Kconfig

2018-12-10T02:12:29+00:00

There are still systems running which do not have any LAPIC or even IOAPIC. Responsible MSRs for those do not exist and the systems are crashing on trying to setup LAPIC. This commit makes the APIC stuff able to switch off for those boards which dont' have an LAPIC / IOAPIC. Signed-off-by: Hannes Schmelzer Reviewed-by: Bin Meng