linux-kernel - Re: [PATCH] ARM: imx_v6_v7

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Date:   Wed, 24 Jan 2018 09:31:01 +0800
From:   Peng Fan <van.freenix@...il.com>
To:     Peng Fan <peng.fan@....com>
Cc:     shawnguo@...nel.org, fabio.estevam@....com, kernel@...gutronix.de,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-imx@....com
Subject: Re: [PATCH] ARM: imx_v6_v7_defconfig: enable OP-TEE

Hi,

On Fri, Jan 05, 2018 at 05:40:35PM +0800, Peng Fan wrote:
>This patch enables configs for Trusted Execution Environment(TEE) and
>Open Portable Trusted Execution Environment(OP-TEE).
>
>With Linux running in Trustzone non-secure world, OP-TEE OS runs in
>secure world, linux could use secure services provided by OP-TEE.
>With TEE/OP-TEE options selected, use the bindings
>in Documentation/devicetree/bindings/arm/firmware/linaro,optee-tz.txt
>to let the driver probe work.
>
>On i.MX6/7, now the bootflow is U-Boot->OP-TEE->Linux, OP-TEE will
>automatically create that node.
>
>Signed-off-by: Peng Fan <peng.fan@....com>
>---
>
>V1:
> Tested on i.MX7D-SDB with/without OP-TEE OS.
> OP-TEE needs https://github.com/OP-TEE/optee_os/pull/2052

This OP-TEE OS change has been merged.

Any comments on this patch to enable linux side driver?

Thanks,
Peng.

>
> arch/arm/configs/imx_v6_v7_defconfig | 2 ++
> 1 file changed, 2 insertions(+)
>
>diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig
>index 29cd1ac48987..72c4231d1b62 100644
>--- a/arch/arm/configs/imx_v6_v7_defconfig
>+++ b/arch/arm/configs/imx_v6_v7_defconfig
>@@ -368,6 +368,8 @@ CONFIG_PWM=y
> CONFIG_PWM_FSL_FTM=y
> CONFIG_PWM_IMX=y
> CONFIG_NVMEM_IMX_OCOTP=y
>+CONFIG_TEE=y
>+CONFIG_OPTEE=y
> CONFIG_MUX_MMIO=y
> CONFIG_EXT2_FS=y
> CONFIG_EXT2_FS_XATTR=y
>-- 
>2.14.1
>

--