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From: VINOTHKUMAR RK <vkrk.user@gmail.com>
Date: Mon, 19 Jul 2021 18:32:34 +0530
Message-ID: <CAHf5cscRkiCHw9HmJncTuA9E1dZDmEYTvkhkH4dF-nZcpEDnaA@mail.gmail.com>
Subject: AST2600: Linux driver support for SPI controller
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Hello all,

This is regarding SPI controller driver support in OpenBMC.
Here is the scenario: Three devices connected *over same SPI controller* as
mentioned below:

Firmware SPI Memory Controller (BSPI): (0x1E620000):
    - Flash 0 (CS0)
    - Flash 1 (CS1)
    - MCU/CPLD (CS2)

When I look at the OpenBMC Linux repository, I could find 'aspeed-smc.c'
driver under the MTD subsystem, so this seems to work only for flash
devices.

Do we've any other driver support or a solution to handle all the three
devices? Any help/suggestions would be appreciated.


Regards,
Vinoth Kumar RK

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<div dir=3D"ltr"><div dir=3D"ltr"><div dir=3D"ltr">Hello all,<div><br></div=
><div><div>This is regarding SPI controller driver support in OpenBMC.</div=
><div>Here is the scenario: Three devices connected <b><i><u>over same SPI =
controller</u></i></b> as mentioned below:</div><div><br></div><div>Firmwar=
e SPI Memory Controller (BSPI): (0x1E620000):</div><div>=C2=A0 =C2=A0 - Fla=
sh 0 (CS0)</div><div>=C2=A0 =C2=A0 - Flash 1 (CS1)</div><div>=C2=A0 =C2=A0 =
- MCU/CPLD (CS2)</div><div><br></div><div>When I look at the OpenBMC Linux =
repository, I could find &#39;aspeed-smc.c&#39; driver under the MTD subsys=
tem, so this seems to work only for flash devices.</div><div><br></div><div=
>Do we&#39;ve any other driver support or a solution to handle all the thre=
e devices? Any help/suggestions would be appreciated.</div></div><div><br><=
/div><div><br></div><div>Regards,</div><div>Vinoth Kumar RK</div></div></di=
v></div>

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