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u-boot/arch/x86/include/asm/acpi/global_nvs.h

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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>
2018-05-06 21:58:06 +00:00
/* SPDX-License-Identifier: GPL-2.0+ */
x86: baytrail: Introduce ACPI global NVS This introduces baytrail-specific ACPI global NVS structure, defined in both C header file and ASL file. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: George McCollister <george.mccollister@gmail.com> Tested-by: George McCollister <george.mccollister@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-06-17 09:13:14 +00:00
/*
* Copyright (C) 2016, Bin Meng <bmeng.cn@gmail.com>
*/
#ifndef _ACPI_GNVS_H_
#define _ACPI_GNVS_H_
/*
* This file provides two ACPI global NVS macros: ACPI_GNVS_ADDR and
* ACPI_GNVS_SIZE. They are to be used in platform's global_nvs.asl file
* to declare the GNVS OperationRegion, as well as write_acpi_tables()
* for the GNVS address runtime fix up.
x86: acpi: Support external GNVS tables At present U-Boot puts a magic number in the ASL for the GNVS table and searches for it later. Add a Kconfig option to use a different approach, where the ASL files declare the table as an external symbol. U-Boot can then put it wherever it likes, without any magic numbers or searching. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-09-22 18:44:53 +00:00
*
* If using CONFIG_ACPI_GNVS_EXTERNAL, we don't need to locate the GNVS in
* DSDT, since it is created by code, so ACPI_GNVS_ADDR is unused.
x86: baytrail: Introduce ACPI global NVS This introduces baytrail-specific ACPI global NVS structure, defined in both C header file and ASL file. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: George McCollister <george.mccollister@gmail.com> Tested-by: George McCollister <george.mccollister@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-06-17 09:13:14 +00:00
*/
#define ACPI_GNVS_ADDR 0xdeadbeef
x86: acpi: Expand the GNVS Expand this to 4KB so that it is possible to add custom information to it. On Chromebooks this is used to pass verified-boot information. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-09-22 18:44:54 +00:00
#define ACPI_GNVS_SIZE 0x1000
x86: baytrail: Introduce ACPI global NVS This introduces baytrail-specific ACPI global NVS structure, defined in both C header file and ASL file. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: George McCollister <george.mccollister@gmail.com> Tested-by: George McCollister <george.mccollister@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-06-17 09:13:14 +00:00
#endif /* _ACPI_GNVS_H_ */
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