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From: Michael Walle <michael@walle.cc>
To: Biju Das <biju.das.jz@bp.renesas.com>
Cc: Mark Brown <broonie@kernel.org>,
	Miquel Raynal <miquel.raynal@bootlin.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
	linux-spi@vger.kernel.org, linux-mtd@lists.infradead.org,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@bp.renesas.com>,
	"biju.das.au" <biju.das.au@gmail.com>,
	linux-renesas-soc@vger.kernel.org
Subject: Re: [PATCH RFC 0/4] Add set_iofv() callback
Date: Mon, 13 Nov 2023 15:47:40 +0100	[thread overview]
Message-ID: <e8ed909b39b5a7de46a07d2b57c0393a@walle.cc> (raw)
In-Reply-To: <4c6674a6717152fc1a244d123a2db896@walle.cc>

> Maybe
> it will already drive IO3 high by default?! (and esp. what the bootROM 
> is doing
> if that SoC is able to load the first stage bootloader from NOR).

I just had another look at your Renesas SoC and indeed, the register 
default is
to set IO3 high if not used. Mh. I still think 3,3,3,3 is the saner 
default.
But I might be wrong. Hard to tell, as the sample size is just Micron 
and Atmel
for now. And it's still unclear to me why the Atmel isn't working with 
3,3,3,1.

-michael

WARNING: multiple messages have this Message-ID (diff)
From: Michael Walle <michael@walle.cc>
To: Biju Das <biju.das.jz@bp.renesas.com>
Cc: Mark Brown <broonie@kernel.org>,
	Miquel Raynal <miquel.raynal@bootlin.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
	linux-spi@vger.kernel.org, linux-mtd@lists.infradead.org,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@bp.renesas.com>,
	"biju.das.au" <biju.das.au@gmail.com>,
	linux-renesas-soc@vger.kernel.org
Subject: Re: [PATCH RFC 0/4] Add set_iofv() callback
Date: Mon, 13 Nov 2023 15:47:40 +0100	[thread overview]
Message-ID: <e8ed909b39b5a7de46a07d2b57c0393a@walle.cc> (raw)
In-Reply-To: <4c6674a6717152fc1a244d123a2db896@walle.cc>

> Maybe
> it will already drive IO3 high by default?! (and esp. what the bootROM 
> is doing
> if that SoC is able to load the first stage bootloader from NOR).

I just had another look at your Renesas SoC and indeed, the register 
default is
to set IO3 high if not used. Mh. I still think 3,3,3,3 is the saner 
default.
But I might be wrong. Hard to tell, as the sample size is just Micron 
and Atmel
for now. And it's still unclear to me why the Atmel isn't working with 
3,3,3,1.

-michael

______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/

  reply	other threads:[~2023-11-13 14:47 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-08 17:11 [PATCH RFC 0/4] Add set_iofv() callback Biju Das
2023-11-08 17:11 ` Biju Das
2023-11-08 17:11 ` [PATCH RFC 1/4] spi: spi-mem: " Biju Das
2023-11-08 17:11   ` Biju Das
2023-11-09  7:56   ` Geert Uytterhoeven
2023-11-09  7:56     ` Geert Uytterhoeven
2023-11-09  8:28     ` Biju Das
2023-11-08 17:11 ` [PATCH RFC 2/4] mtd: spi-nor: Add post_sfdp() callback Biju Das
2023-11-08 17:11   ` Biju Das
2023-11-08 17:11 ` [PATCH RFC 3/4] memory: renesas-rpc-if: Add support for overriding IO fixed values Biju Das
2023-11-21  9:08   ` Krzysztof Kozlowski
2023-11-08 17:11 ` [PATCH RFC 4/4] spi: rpc-if: Add set_iofv() callback Biju Das
2023-11-09  9:01 ` [PATCH RFC 0/4] " Michael Walle
2023-11-09  9:01   ` Michael Walle
2023-11-09 10:04   ` Biju Das
2023-11-09 10:48     ` Michael Walle
2023-11-09 10:48       ` Michael Walle
2023-11-09 11:48       ` Biju Das
2023-11-09 12:40         ` Michael Walle
2023-11-09 12:40           ` Michael Walle
2023-11-09 18:02           ` Biju Das
2023-11-10 10:11             ` Michael Walle
2023-11-10 10:11               ` Michael Walle
2023-11-10 11:35               ` Biju Das
2023-11-11 12:26                 ` Biju Das
2023-11-11 13:08                   ` Biju Das
2023-11-13 14:04                   ` Michael Walle
2023-11-13 14:04                     ` Michael Walle
2023-11-13 14:27                     ` Biju Das
2023-11-13 14:48                       ` Michael Walle
2023-11-13 14:48                         ` Michael Walle
2023-11-13 14:59                         ` Biju Das
2023-11-13 15:10                           ` Michael Walle
2023-11-13 15:10                             ` Michael Walle
2023-11-13 15:55                             ` Biju Das
2023-11-14 10:05                               ` Michael Walle
2023-11-14 10:05                                 ` Michael Walle
2023-11-12 20:24               ` Biju Das
2023-11-13 14:37                 ` Michael Walle
2023-11-13 14:37                   ` Michael Walle
2023-11-13 14:47                   ` Michael Walle [this message]
2023-11-13 14:47                     ` Michael Walle

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