The TI AM43xx HS boards have been using CFG_PRAM to hide the top 64MB
firewalled DRAM memory from U-Boot. However, CFG_PRAM only prevents
U-Boot from relocating into that memory, but it is still open for access
for any other usage.

Therefore, migrate into using CONFIG_SYS_MEM_TOP_HIDE which reduces the
ram size itself ensuring that memory is not visible to U-Boot at all
(either for reloc, or general usage).

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>

Add initial support for Renesas R-Car X5H R8A78000 Ironhide board.
This consists mainly of DTs, Makefile and Kconfig entries and board
specific configuration files.

The DTs will be gradually switched over to Linux DTs via OF_UPSTREAM
once Linux DTs become available upstream, as upstreaming progresses.

Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>

- Assorted updates

Add support for a generic platform which intends to support multiple
boards powered by ARMv8 Samsung Exynos SoCs. Some important features
include:
 * Fastboot: This is present to provide an open alternative to Samsung's
   proprietary Odin protocol. The board file configures certain features
   for fastboot, such as a dynamically allocated fastboot buffer, and
   standardized (lowercase) partition aliases.
 * EFI: Kernel image can be loaded from an EFI partition. This
   adopts a standard booting process, which multiple OS distributions
   can rely on.

Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

Remove setting of fdt_high to ~0, which disables device tree relocation,
from the default environment. Doing so prevents U-Boot from correcting
problems such as having an unaligned device tree and leads to various
failure modes in the OS.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Marek Vasut <marek.vasut@mailbox.org>

Remove setting of fdt_high to ~0, which disables device tree relocation,
from the default environment. Doing so prevents U-Boot from correcting
problems such as having an unaligned device tree and leads to various
failure modes in the OS.

Signed-off-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu> says:

This patch series adds basic support for the boards based on Airoha
EN7523/EN7529/EN7562 SoCs. Due to ATF restrictions these boards are
able to run 32-bit OS only.

This patch series adds support for the following hardware:
 * console UART
 * ethernet controller/switch
 * spinand flash (in non-dma mode)

The following issues may be expected:
 * Extra slow UBI attaching in U-Boot (up to 20 sec with fastmap enabled).
   This is caused by the lack of DMA support in the U-Boot airoha-snfi driver.
 * Linux airoha-snfi driver in some cases might damage you flash data
   (see: https://lore.kernel.org/lkml/20251012121707.2296160-15-mikhail.kshevetskiy@iopsys.eu/)
 * Latest linux kernel is recommended to properly support flashes
   with more than one plane per lun
   (see: https://lore.kernel.org/lkml/20251012121707.2296160-7-mikhail.kshevetskiy@iopsys.eu/)
 * It's NOT recommended to use flashes working in continuous mode because
   U-Boot airoha-snfi driver does not support such flashes properly.

The patches was tested on the board:
 - SoC: Airoha EN7562
 - RAM: 512 MB
 - SPI NAND: 4 Gbit, made by Toshiba
 - Linux boot: was NOT tested

The U-Boot was chain-loaded from the running U-Boot. Airoha ATF-2.3 does
not allow easily chain-loading of U-Boot from U-Boot, so a special FIT
image (mimic linux kernel) was created

1) Create u-boot.its file with the following contents:

=== cut here ===
/dts-v1/;

/ {
	description = "ARM OpenWrt FIT (Flattened Image Tree)";
	#address-cells = <1>;

	images {
		u-boot-ram {
			description = "OpenWrt U-Boot RAM image";
			data = /incbin/("u-boot.bin.lzma");
			type = "kernel";
			arch = "arm";
			os = "linux";
			compression = "lzma";
			load = <0x81e00000>;
			entry = <0x81e00000>;
			hash@1 {
				algo = "crc32";
			};
			hash@2 {
				algo = "sha1";
			};
		};

		fdt-1 {
			description = "OpenWrt device tree blob";

			data = /incbin/("dts/upstream/src/arm/airoha/en7523-evb.dtb");
			type = "flat_dt";

			arch = "arm";
			compression = "none";
			hash@1 {
				algo = "crc32";
			};
			hash@2 {
				algo = "sha1";
			};
		};
	};

	configurations {
		default = "config-ram-uboot";
		config-ram-uboot {
			description = "OpenWrt RAM U-Boot";
			kernel = "u-boot-ram";
			fdt = "fdt-1";
		};
	};
};
==================

2) Create u-boot.itb image to chain-load new u-boot from the old one

  lzma_alone e u-boot.bin u-boot.bin.lzma
  mkimage -f u-boot.its u-boot.itb

3) Load new u-boot from the old one

  U-Boot> tftpboot u-boot.itb && bootm

Link: https://lore.kernel.org/r/20251101004503.2379529-1-mikhail.kshevetskiy@iopsys.eu

Basic support for en7523/en7529/en7562 SoCs. Within a patch
only serial console will be supported.

Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>

Add boot support and peripherals like eMMC/SD, UART, I2C, GPIO, ENETC0/1
and PCIE0/1 for iMX95 15x15 LPDDR4X EVK.
Updated doc for build instructions.

Signed-off-by: Ye Li <ye.li@nxp.com>

Enable DFU SF on all i.MX6 DHSOM so the SPI NOR can be exposed via
DFU, and include dfu_alt_info which exposes the full SPI NOR via DFU.
To install new bootloader into the SPI NOR using DFU, it is necessary
to pad the u-boot-with-spl.imx to 0x400 Bytes offset first and then
send it to the board as follows:

"
u-boot=> dfu 0 sf
"

"
host$ dd if=/dev/zero of=pad.bin bs=1024 count=1
host$ cat pad.bin u-boot-with-spl.imx > flash.bin
host$ dfu-util -w -a 0 -D flash.bin
"

Signed-off-by: Marek Vasut <marek.vasut@mailbox.org>