From: sbabic@denx.de
To: Frieder Schrempf <frieder@fris.de>,u-boot@lists.denx.de
Subject: [PATCH v3 15/19] imx: kontron-sl-mx8mm: Use the VSELECT signal to switch SD card IO voltage
Date: Fri, 21 Oct 2022 13:42:15 +0200 (CEST) [thread overview]
Message-ID: <20221021114220.475E08500A@phobos.denx.de> (raw)
In-Reply-To: <20220824135921.1843567-13-frieder@fris.de>
> From: Frieder Schrempf <frieder.schrempf@kontron.de>
> It turns out that it is not necessary to declare the VSELECT signal as
> GPIO and let the PMIC driver set it to a fixed high level. This switches
> the voltage between 3.3V and 1.8V by setting the PMIC register for LDO5
> accordingly.
> Instead we can do it like other boards already do and simply mux the
> VSELECT signal of the USDHC interface to the pin. This makes sure that
> the correct voltage is selected by setting the PMIC's SD_VSEL input
> to high or low accordingly.
> Reported-by: Heiko Thiery <heiko.thiery@gmail.com>
> Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
> Reviewed-by: Heiko Thiery <heiko.thiery@gmail.com>
> Reviewed-by: Fabio Estevam <festevam@denx.de>
Applied to u-boot-imx, master, thanks !
Best regards,
Stefano Babic
--
=====================================================================
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic@denx.de
=====================================================================
next prev parent reply other threads:[~2022-10-21 11:46 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-24 13:59 [PATCH v3 03/19] imx: kontron-sl-mx8mm: Remove custom board_boot_order() workaround Frieder Schrempf
2022-08-24 13:59 ` [PATCH v3 04/19] imx: kontron-sl-mx8mm: Increase CONFIG_SYS_CBSIZE to 2K Frieder Schrempf
2022-10-21 11:43 ` sbabic
2022-08-24 13:59 ` [PATCH v3 05/19] imx: kontron-sl-mx8mm: Enable MTD command Frieder Schrempf
2022-10-21 11:43 ` sbabic
2022-08-24 13:59 ` [PATCH v3 06/19] imx: kontron-sl-mx8mm: Add redundant environment and SPI NOR partitions Frieder Schrempf
2022-10-21 11:42 ` sbabic
2022-08-24 13:59 ` [PATCH v3 07/19] imx: kontron-sl-mx8mm: Enable environment in MMC Frieder Schrempf
2022-10-21 11:42 ` sbabic
2022-08-24 13:59 ` [PATCH v3 08/19] imx: kontron-sl-mx8mm: Migrate to use CONFIG_EXTRA_ENV_TEXT Frieder Schrempf
2022-10-21 11:40 ` sbabic
2022-08-24 13:59 ` [PATCH v3 09/19] imx: kontron-sl-mx8mm: Enable bootaux command Frieder Schrempf
2022-10-21 11:41 ` sbabic
2022-08-24 13:59 ` [PATCH v3 10/19] imx: kontron-sl-mx8mm: lpddr4_timing.c: Add spaces for proper alignment Frieder Schrempf
2022-10-21 11:42 ` sbabic
2022-08-24 13:59 ` [PATCH v3 11/19] imx: kontron-sl-mx8mm: Remove 100mt DDR setpoint Frieder Schrempf
2022-10-21 11:43 ` sbabic
2022-10-21 19:24 ` Tim Harvey
2022-10-24 11:53 ` Frieder Schrempf
2022-10-24 20:49 ` Tim Harvey
2022-08-24 13:59 ` [PATCH v3 12/19] imx: kontron-sl-mx8mm: Use new LPDDR4 config parameters Frieder Schrempf
2022-10-21 11:43 ` sbabic
2022-08-24 13:59 ` [PATCH v3 13/19] imx: kontron-sl-mx8mm: Prepare for other i.MX8MM SoM types Frieder Schrempf
2022-10-21 11:43 ` sbabic
2022-08-24 13:59 ` [PATCH v3 14/19] imx: kontron-sl-mx8mm: Adjust devicetree names, compatibles and model strings Frieder Schrempf
2022-10-21 11:43 ` sbabic
2022-08-24 13:59 ` [PATCH v3 15/19] imx: kontron-sl-mx8mm: Use the VSELECT signal to switch SD card IO voltage Frieder Schrempf
2022-10-21 11:42 ` sbabic [this message]
2022-08-24 13:59 ` [PATCH v3 16/19] imx: kontron-sl-mx8mm: Use voltage rail names from schematic for PMIC regulator-names Frieder Schrempf
2022-10-21 11:41 ` sbabic
2022-08-24 13:59 ` [PATCH v3 17/19] imx: kontron-sl-mx8mm: Simplify code in spl.c Frieder Schrempf
2022-10-21 11:40 ` sbabic
2022-08-24 13:59 ` [PATCH v3 18/19] imx: kontron-sl-mx8mm: Add support for Kontron Electronics SoM SL i.MX8MM OSM-S Frieder Schrempf
2022-10-21 11:41 ` sbabic
2022-08-24 13:59 ` [PATCH v3 19/19] imx: kontron-sl-mx8mm: Prepare for I2C display detection in environment script Frieder Schrempf
2022-10-21 11:40 ` sbabic
2022-10-21 11:41 ` [PATCH v3 03/19] imx: kontron-sl-mx8mm: Remove custom board_boot_order() workaround sbabic
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20221021114220.475E08500A@phobos.denx.de \
--to=sbabic@denx.de \
--cc=frieder@fris.de \
--cc=u-boot@lists.denx.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.