u-boot.git/arch/x86/cpu/coreboot/coreboot.c, branch v2018.09

x86: coreboot: Add generic coreboot payload support

2018-08-20T05:52:06Z

Currently building U-Boot as the coreboot payload requires user to change the build configuration for a specific board during menuconfig process. This uses the board's native device tree to configure the hardware. For example, the device tree provides PCI address range for the PCI host controller and U-Boot will re-program all PCI devices' BAR to be within this range. In order to make sure we don't mess up the hardware, we should guarantee the range matches what coreboot programs the chipset. But we really should make the coreboot payload support easier. Just like EFI payload, we can create a generic coreboot payload for all x86 boards as well. The payload is configured to include as many generic drivers as possible. All stuff that touches low level initialization are not allowed as such is the coreboot's responsibility. Platform specific drivers (like gpio, spi, etc) are not included. Signed-off-by: Bin Meng Reviewed-by: Christian Gmeiner

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07T13:34:12Z

When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini

x86: kconfig: Select ARCH_MISC_INIT in the platform Kconfig

2017-08-01T12:17:02Z

arch_misc_init() is intended to do architecture-dependent stuff. This is required by each platform. Signed-off-by: Bin Meng Reviewed-by: Simon Glass

x86: kconfig: Let board select BOARD_EARLY_INIT_F

2017-08-01T12:17:02Z

CONFIG_BOARD_EARLY_INIT_F literally indicates board-specific codes and should be not 'default y' for all x86 boards. Signed-off-by: Bin Meng Reviewed-by: Andy Shevchenko Reviewed-by: Simon Glass

board_f: x86: Use checkcpu() for CPU init

2017-04-05T17:55:09Z

At present we misuse print_cpuinfo() do so CPU init on x86. This is done because it is the next available call after the console is enabled. But several arches use checkcpu() instead. Despite the horrible name (which we can fix), it seems a better choice. Adjust the various x86 CPU implementations to move their init code into checkcpu() and use print_cpuinfo() only for printing CPU info. Signed-off-by: Simon Glass Reviewed-by: Stefan Roese

x86: Call board_final_cleanup() in last_stage_init()

2016-05-23T07:18:00Z

At present board_final_cleanup() is called before booting a Linux kernel. This actually needs to be done before booting anything, like SeaBIOS, VxWorks or Windows. Move the call to last_stage_init() instead. Signed-off-by: Bin Meng Reviewed-by: Simon Glass

x86: coreboot: Convert to use more dm drivers

2015-09-09T13:48:03Z

Move to driver model for RTC, USB and ETH on coreboot. Signed-off-by: Bin Meng Acked-by: Simon Glass

x86: qemu: Implement PIRQ routing

2015-06-04T09:03:18Z

Support QEMU PIRQ routing via device tree on both i440fx and q35 platforms. With this commit, Linux booting on QEMU from U-Boot has working ATA/SATA, USB and ethernet. Signed-off-by: Bin Meng Acked-by: Simon Glass

x86: coreboot: Control I/O port 0xb2 writing via device tree

2015-06-04T09:03:18Z

Writing 0xcb to I/O port 0xb2 (Advanced Power Management Control) causes U-Boot to hang on QEMU q35 target. We introduce a config option in the device tree "u-boot,no-apm-finalize" under /config node if we don't want to do that. Signed-off-by: Bin Meng Acked-by: Simon Glass

x86: coreboot: Fix cosmetic issues

2015-06-04T09:03:17Z

Clean up arch/x86/cpu/coreboot.c to fix several cosmetic issues. Signed-off-by: Bin Meng Acked-by: Simon Glass