There is no intention to use EFI on Microblaze V that's why disable it to
save some space. Also it is indication that this feature is not
tested/supported.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/2b14005e41e0688ff9598d0b3f2cfbdf82c8ff91.1770798604.git.michal.simek@amd.com

U-Boot SPL should be executed from LMB BRAM, where its text
and data sections are located, while the heap and stack are
allocated in DDR memory.

Because on the MB-V platform, after power-up, reset, or FPGA
load, execution begins from LMB BRAM at address 0x0. Therefore,
the SPL binary must be placed in BRAM to support this boot flow.
Without it, the system can only be booted via JTAG.

A 64KB LMB BRAM region is allocated for U-Boot SPL, starting at
address 0x0. This region contains the SPL's text, data, and device
tree blob (DTB) sections. The .bss section is placed separately at
address 0xF000.

	_________________0xFFFF
	|BSS            |
	|_______________|0xF000
	|DTB            |
	|_______________|
	|Data           |
	|_______________|
	|Text           |
	|_______________|0x0000

A 2MB region of DDR memory is allocated for U-Boot SPL, with the
heap starting at address 0x80000000 and the stack at 0x80200000.

	_________________0xBFFFFFFF
	|Full U-Boot    |
	|_______________|0x80400000
	|Load FIT Image |
	|_______________|0x80200000
	|Stack          |
	|_______________|
	|Heap           |
	|_______________|0x80000000

Since LMB BRAM is a limited resource with a practical size
constraint of 64KB - it cannot accommodate all runtime data.
Therefore, the heap and stack are placed at the beginning of
DDR memory to ensure sufficient space for SPL execution.

Signed-off-by: Padmarao Begari <padmarao.begari@amd.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/ed4a3618875869287b87b6b57fd55f4c6a36f046.1765206211.git.michal.simek@amd.com

Remove debug UART support as it is intended for development and
debugging purposes, and should not be enabled in production builds.

Signed-off-by: Padmarao Begari <padmarao.begari@amd.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/6eaad47c30990ffd230d21c7158bc7234cda1752.1764747346.git.michal.simek@amd.com

GZIP compression is disabled to reduce the SPL size by 12KB.

Signed-off-by: Padmarao Begari <padmarao.begari@amd.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/339520b249a3c69a36faf5432cbd581459563e32.1764747291.git.michal.simek@amd.com

MB-V 32 has optional single precision FPU (64bit has single and double
precision FPU) but there is no use and reason to enable FPU by default
that's why disable it.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/2c043ed05643fee200a79eb08bfd5c0041663bd2.1764746430.git.michal.simek@amd.com

Enable SNTP/DATE commands on all Xilinx boards.
Also enable RTC_EMULATION driver for platforms which don't have physical
RTC. Enabling DM_RTC is enabling by default also CMD_DATE.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/2605b1618a311efe4f35442c34e7cec973060630.1759393175.git.michal.simek@amd.com

The commit d92fdb60677b ("binman: Add option for pointing to separate
description") added support for separating binman description to own file
not the be the part of DT for OS.
The main reason is that binman is not passing dt schema validation that's
why want to keep it separated.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Acked-by: Leo Yu-Chi Liang <ycliang@andestech.com>

For all riscv defconfigs that use the current default value.

This is done in provision of changing the default value to the most
common used value of 0x4000000.

Signed-off-by: Martin Herren <sputnik@on-the-web.ch>
Acked-by: Michal Simek <michal.simek@amd.com> # xilinx_mbv
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>

Commit 86acdce2ba88 ("common: add config for board_init() call")
introduced CONFIG_BOARD_INIT option. This option can be disabled for the
boards where board_init() function is not needed. Remove empty
board_init() calls for all boards where it's possible, and disable
CONFIG_BOARD_INIT in all related defconfigs.

This cleanup was made semi-automatically using these scripts: [1].

No functional change, but the binary size for the modified boards is
reduced a bit.

[1] https://github.com/joe-skb7/uboot-convert-scripts/tree/master/remove-board-init

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Tested-by: Adam Ford <aford173@gmail.com> #imx8mm_beacon
Tested-by: Bryan Brattlof <bb@ti.com>
Acked-by: Peng Fan <peng.fan@nxp.com>  #NXP boards

Marek Vasut <marek.vasut+renesas@mailbox.org> says:

Rename the environment related variables and add ENV_ prefix, so that
all configuration options which are related to environment would have
an CONFIG_ENV_ prefix. No functional change.

Link: https://lore.kernel.org/r/20250609192701.20260-1-marek.vasut+renesas@mailbox.org