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From: John Watts <contact@jookia.org>
To: Ahmad Fatoum <a.fatoum@pengutronix.de>
Cc: Sascha Hauer <sha@pengutronix.de>, barebox@lists.infradead.org
Subject: Re: [PATCH 4/5] ARM: novena: Read Ethernet MAC address from EEPROM
Date: Thu, 26 Jan 2023 01:50:01 +1100	[thread overview]
Message-ID: <Y9FBmYziOHQRPmtN@novena-choice-citizen> (raw)
In-Reply-To: <13bed4ae-5db5-7432-f610-a065bdebb524@pengutronix.de>

On Wed, Jan 25, 2023 at 03:33:18PM +0100, Ahmad Fatoum wrote:
> On 25.01.23 15:28, John Watts wrote:
> > On Wed, Jan 25, 2023 at 03:16:05PM +0100, Ahmad Fatoum wrote:
> >> We could add the binding to the barebox AT24/AT25 driver. We'll need
> >> to make sure we don't fail the probe in the error path as not to
> >> break existing users. Fortunately, with deep probe, we will
> >> have no -EPROBE_DEFER that would complicate this.
> > 
> > I'm really not sure if specifying the regulator (that should always be on) for
> > every possible node is a good idea. I'd need to add -supply properties to:
> > 
> > - USB
> > - Sata
> > - HDMI
> > - SD cards
> > - Ethernet
> > - PCIe
> > - FPGA
> > - I2C
> > - UART
> 
> What voltage does your UART require that you don't already have when
> your SoC is powered up? anyways, I still see utility in observing
> the vcc-supply upstream bindings for EEPROMs.

These are used for pull-up/pull-down resistors.

> Add an of_devices_ensure_probed_by_property("regulator-boot-enabled") or
> something to the start of your machine's board driver then.

Hmm. Probing for regulator-always-on and regular-boot-on seems to fix my issue.

John.



  reply	other threads:[~2023-01-25 14:52 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-22 17:51 [PATCH 0/5] Add support for the Kosagi Novena board John Watts
2023-01-22 17:51 ` [PATCH 1/5] ARM: novena: Add " John Watts
2023-01-23  9:20   ` Sascha Hauer
2023-01-22 17:51 ` [PATCH 2/5] ARM: novena: Setup RAM using static configuration John Watts
2023-01-22 17:51 ` [PATCH 3/5] ARM: novena: Require the PFUZE regulator John Watts
2023-01-22 17:51 ` [PATCH 4/5] ARM: novena: Read Ethernet MAC address from EEPROM John Watts
2023-01-23  9:33   ` Sascha Hauer
2023-01-23  9:55     ` John Watts
2023-01-24 18:35     ` John Watts
2023-01-25  8:04       ` Sascha Hauer
2023-01-25  8:11         ` John Watts
2023-01-25  8:19           ` Sascha Hauer
2023-01-25 13:31             ` John Watts
2023-01-25 13:48               ` Ahmad Fatoum
2023-01-25 14:04                 ` John Watts
2023-01-25 14:16                   ` Ahmad Fatoum
2023-01-25 14:28                     ` John Watts
2023-01-25 14:33                       ` Ahmad Fatoum
2023-01-25 14:50                         ` John Watts [this message]
2023-01-25 15:42               ` Sascha Hauer
2023-01-25 16:13                 ` John Watts
2023-01-22 17:51 ` [PATCH 5/5] ARM: novena: Use DDR3 information from SPD EEPROM John Watts
2023-01-22 23:20   ` John Watts
2023-01-25 16:42 ` [PATCH v2 0/4] Add support for the Kosagi Novena board John Watts
2023-01-25 16:42 ` [PATCH v2 1/4] ARM: novena: Add " John Watts
2023-01-25 19:33   ` Marco Felsch
2023-01-26  7:25     ` Sascha Hauer
2023-01-26  7:50     ` John Watts
2023-01-26  9:13       ` Marco Felsch
2023-01-25 16:42 ` [PATCH v2 2/4] ARM: novena: Setup RAM using static configuration John Watts
2023-01-25 19:39   ` Marco Felsch
2023-01-26  7:54     ` John Watts
2023-01-26  8:11       ` Sascha Hauer
2023-01-26  9:14         ` Marco Felsch
2023-01-25 16:42 ` [PATCH v2 3/4] ARM: novena: Read Ethernet MAC address from EEPROM John Watts
2023-01-25 20:07   ` Marco Felsch
2023-01-26  8:05     ` John Watts
2023-01-26  9:07       ` Marco Felsch
2023-01-25 16:42 ` [PATCH v2 4/4] ARM: novena: Use DDR3 information from SPD EEPROM John Watts
2023-01-29 23:27 ` [PATCH v3 0/4] Add support for the Kosagi Novena board John Watts
2023-01-29 23:27 ` [PATCH v3 1/4] ARM: novena: Add " John Watts
2023-01-30 20:13   ` Marco Felsch
2023-01-30 20:26     ` John Watts
2023-01-31  9:45       ` Marco Felsch
2023-01-29 23:27 ` [PATCH v3 2/4] ARM: novena: Setup RAM using static configuration John Watts
2023-01-29 23:27 ` [PATCH v3 3/4] ARM: novena: Read Ethernet MAC address from EEPROM John Watts
2023-01-30 20:04   ` Marco Felsch
2023-01-30 20:25     ` John Watts
2023-01-31  9:29       ` Marco Felsch
2023-01-29 23:28 ` [PATCH v3 4/4] ARM: novena: Use DDR3 information from SPD EEPROM John Watts
2023-01-30 20:18   ` Marco Felsch
2023-01-30 20:41     ` John Watts

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