From: Tom Rini <trini@konsulko.com>
To: u-boot@lists.denx.de
Subject: [PATCH v3 3/6] spl: LOAD_FIT_FULL: Relocate FDT for u-boot payloads
Date: Fri, 16 Apr 2021 08:26:20 -0400 [thread overview]
Message-ID: <20210416122620.GE1310@bill-the-cat> (raw)
In-Reply-To: <20210401182531.2147653-4-mr.nuke.me@gmail.com>
On Thu, Apr 01, 2021 at 01:25:28PM -0500, Alexandru Gagniuc wrote:
> U-Boot expects the FDT to be located right after the _end
> linker symbol (see fdtdec.c: board_fdt_blob_setup())
>
> The "basic" LOAD_FIT path is aware of this limitation, and relocates
> the FDT at the expected location. Guessing the expected location
> probably only works reliably on 32-bit arm, and it feels like a hack.
> One proposal would be to pass the FDT address to u-boot
> (e.g. using 'r2' on arm platforms).
>
> The variable is named "fdt_hack" to remind future contributors that,
> "hey! we should fix the underlying problem". However, that is beyond
> the scope of this patch.
>
> Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Applied to u-boot/master, thanks!
--
Tom
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next prev parent reply other threads:[~2021-04-16 12:26 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-01 18:25 [PATCH v3 0/6] SPL: FIT: Fix some omissions of SPL_LOAD_FIT_FULL and bootm Alexandru Gagniuc
2021-04-01 18:25 ` [PATCH v3 1/6] spl: LOAD_FIT_FULL: Fix selection of the "fdt" node Alexandru Gagniuc
2021-04-16 12:26 ` Tom Rini
2021-04-01 18:25 ` [PATCH v3 2/6] spl: LOAD_FIT_FULL: Do not hard-code os to IH_OS_U_BOOT Alexandru Gagniuc
2021-04-16 12:26 ` Tom Rini
2021-04-01 18:25 ` [PATCH v3 3/6] spl: LOAD_FIT_FULL: Relocate FDT for u-boot payloads Alexandru Gagniuc
2021-04-16 12:26 ` Tom Rini [this message]
2021-04-01 18:25 ` [PATCH v3 4/6] spl: LOAD_FIT_FULL: Support 'kernel' and 'firmware' properties Alexandru Gagniuc
2021-04-16 12:26 ` Tom Rini
2021-04-01 18:25 ` [PATCH v3 5/6] image-fit: Accept IH_TYPE_FIRMWARE in fit_image_load() as valid Alexandru Gagniuc
2021-04-16 12:26 ` Tom Rini
2021-04-01 18:25 ` [PATCH v3 6/6] image-fit: Accept OP-TEE images when booting a FIT Alexandru Gagniuc
2021-04-16 12:26 ` Tom Rini
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