From: Sascha Hauer <s.hauer@pengutronix.de>
To: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH v3] ARM: Initial OP-TEE support
Date: Thu, 23 May 2019 10:03:30 +0200 [thread overview]
Message-ID: <20190523080330.eqjwa7hlonxauygm@pengutronix.de> (raw)
In-Reply-To: <20190522080517.28821-1-r.czerwinski@pengutronix.de>
On Wed, May 22, 2019 at 10:05:17AM +0200, Rouven Czerwinski wrote:
> From: Sascha Hauer <s.hauer@pengutronix.de>
>
> This adds initial support for OP-TEE, see https://www.op-tee.org/
>
> barebox starts in secure mode as usual. When booting a kernel
> the bootm code also loads the optee_os binary. Instead of jumping
> into the kernel barebox jumps into the optee_os binary and puts
> the kernel execution address into the lr register. OP-TEE then
> jumps into the kernel in nonsecure mode.
>
> The optee_os binary is passed with the -t option to bootm or
> with global.bootm.tee.
>
> Optionally OP-TEE can be compiled into barebox using the builtin firmware
> feature. Enable the Kconfig option and place or link your tee binary as
> optee.bin into the firmware directory.
>
> The amount of SDRAM which is kept free for OP-TEE is configurable.
>
> This patch was tested on a i.MX6 Nitrogen6x board.
>
> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
> Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
> ---
Applied, thanks
Sascha
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prev parent reply other threads:[~2019-05-23 8:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-22 8:05 Rouven Czerwinski
2019-05-23 8:03 ` Sascha Hauer [this message]
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