mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-08 11:13:45 +09:00
83d290c56f
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>
67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
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*/
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#include <common.h>
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#include <mmc.h>
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#include <pci_ids.h>
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#include <asm/irq.h>
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#include <asm/mrccache.h>
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#include <asm/post.h>
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#include <asm/arch/iomap.h>
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/* GPIO SUS */
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#define GPIO_SUS_PAD_BASE (IO_BASE_ADDRESS + IO_BASE_OFFSET_GPSSUS)
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#define GPIO_SUS_DFX5_CONF0 0x150
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#define BYT_TRIG_LVL BIT(24)
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#define BYT_TRIG_POS BIT(25)
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#ifndef CONFIG_EFI_APP
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int arch_cpu_init(void)
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{
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post_code(POST_CPU_INIT);
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return x86_cpu_init_f();
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}
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int arch_misc_init(void)
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{
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if (!ll_boot_init())
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return 0;
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#ifdef CONFIG_ENABLE_MRC_CACHE
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/*
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* We intend not to check any return value here, as even MRC cache
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* is not saved successfully, it is not a severe error that will
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* prevent system from continuing to boot.
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*/
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mrccache_save();
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#endif
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/*
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* For some unknown reason, FSP (gold4) for BayTrail configures
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* the GPIO DFX5 PAD to enable level interrupt (bit 24 and 25).
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* This does not cause any issue when Linux kernel runs w/ or w/o
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* the pinctrl driver for BayTrail. However this causes unstable
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* S3 resume if the pinctrl driver is included in the kernel build.
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* As this pin keeps generating interrupts during an S3 resume,
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* and there is no IRQ requester in the kernel to handle it, the
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* kernel seems to hang and does not continue resuming.
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*
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* Clear the mysterious interrupt bits for this pin.
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*/
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clrbits_le32(GPIO_SUS_PAD_BASE + GPIO_SUS_DFX5_CONF0,
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BYT_TRIG_LVL | BYT_TRIG_POS);
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return 0;
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}
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#endif
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void reset_cpu(ulong addr)
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{
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/* cold reset */
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x86_full_reset();
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}
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