u-boot/arch/arm/include/asm/arch-meson/mem.h

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * Copyright (C) 2016 BayLibre, SAS
 * Author: Neil Armstrong <narmstrong@baylibre.com>
 */

#ifndef __MESON_MEM_H__
#define __MESON_MEM_H__

/* Configure the reserved memory zones exported by the secure registers
 * into EFI and DTB reserved memory entries.
 */
void meson_gx_init_reserved_memory(void *fdt);

#endif /* __MESON_MEM_H__ */
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+ */`
ARM: arch-meson: build memory banks using reported memory from registers As discussed at [1], the Amlogic Meson GX SoCs can embed a BL31 firmware and a secondary BL32 firmware. Since mid-2017, the reserved memory address of the BL31 firmware was moved and grown for security reasons. But mainline U-Boot and Linux has the old address and size fixed. These SoCs have a register interface to get the two firmware reserved memory start and sizes. This patch adds a dynamic reservation of the memory zones in the device tree bootmem reserved memory zone used by the kernel in early boot. To be complete, the memory zones are also added to the EFI reserved zones. Depends on patchset "Add support for Amlogic GXL Based SBCs" at [2]. [1] http://lists.infradead.org/pipermail/linux-amlogic/2017-October/004860.html [2] http://lists.infradead.org/pipermail/linux-amlogic/2017-November/005410.html Changes since v1: - switched the #if to if(IS_ENABLED()) to compile all code paths - renamed function to meson_board_add_reserved_memory() - added a mem.h header with comment - updated all boards ft_board_setup() Changes since RFC v2: - reduced preprocessor load - kept Odroid-C2 static memory mapping as exception Changes since RFC v1: - switch to fdt rsv mem table and efi reserve memory - replaced in_le32 by readl() Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> [trini: Fix warning on khadas-vim over missing <asm/arch/mem.h> Signed-off-by: Tom Rini <trini@konsulko.com> 2017-11-27 09:35:46 +00:00			`/*`
			`* Copyright (C) 2016 BayLibre, SAS`
			`* Author: Neil Armstrong <narmstrong@baylibre.com>`
			`*/`

			`#ifndef __MESON_MEM_H__`
			`#define __MESON_MEM_H__`

			`/* Configure the reserved memory zones exported by the secure registers`
			`* into EFI and DTB reserved memory entries.`
			`*/`
			`void meson_gx_init_reserved_memory(void *fdt);`

			`#endif /* __MESON_MEM_H__ */`