u-boot-brain/arch/x86/cpu/braswell/Makefile

# SPDX-License-Identifier: GPL-2.0+
#
# Copyright (C) 2017, Bin Meng <bmeng.cn@gmail.com>

obj-y += braswell.o early_uart.o fsp_configs.o
SPDX: Convert all of our single license tags to Linux Kernel style 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 <trini@konsulko.com> 2018-05-07 06:58:06 +09:00			`# SPDX-License-Identifier: GPL-2.0+`
x86: Add Intel Braswell SoC support This adds initial Intel Braswell SoC support. It uses Intel FSP to initialize the chipset. Similar to its predecessor BayTrail, there are some work to do to enable the legacy UART integrated in the Braswell SoC. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> 2017-08-16 14:41:58 +09:00			`#`
			`# Copyright (C) 2017, Bin Meng <bmeng.cn@gmail.com>`

x86: braswell: Fix unexpected crash during Linux kernel boot It was observed that when booting Linux kernel on Intel Cherry Hill board, unexpected crash happens quite randomly. Sometimes kernel just oops, while sometimes kernel throws MCE errors and hangs: mce: [Hardware Error]: Machine check events logged mce: [Hardware Error]: CPU 0: Machine Check: 0 Bank 4: c400000000010151 mce: [Hardware Error]: TSC 0 ADDR 130f3f2c0 mce: [Hardware Error]: PROCESSOR 0:406c3 TIME 1508160686 SOCKET 0 APIC 0 microcode 363 This looks like a hardware error per mcelog. After debugging, it seems turning off turbo mode on the processor does not expose this behavior, although U-Boot runs OK with turbo mode on. Suspect it is related to an errata of Braswell processor. To fix this, remove the Braswell cpu driver which does the turbo mode configuration, and switch to use the generic cpu-x86 driver. Also there is a configuration option in the FSP that turns on the turbo mode and that has been turned off too. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> 2017-10-19 10:20:53 +09:00			`obj-y += braswell.o early_uart.o fsp_configs.o`