From: Eugen Hristev <eugen.hristev@microchip.com>
To: <robh+dt@kernel.org>, <claudiu.beznea@microchip.com>
Cc: <devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>,
Eugen Hristev <eugen.hristev@microchip.com>
Subject: [PATCH] ARM: dts: at91: sama7g5ek: align power rails for sdmmc0/1
Date: Thu, 24 Nov 2022 17:46:10 +0200 [thread overview]
Message-ID: <20221124154610.246790-1-eugen.hristev@microchip.com> (raw)
On this board SDMMC0 has a 1.8 signaled eMMC device powered at
3.3 V .
Hence, correctly describe the connected rails from the PMIC.
SDMMC1 is connected to a voltage switch that can change from
3.3V to 1.8V by a hardware controlled pin.
However SDMMC1 at the moment works only 3.3V mode (default speed,
no UHS-I modes), thus connect the signaling to the 3.3V rail.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
---
arch/arm/boot/dts/at91-sama7g5ek.dts | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/at91-sama7g5ek.dts b/arch/arm/boot/dts/at91-sama7g5ek.dts
index 3b25c67795dd..aa5cc0e98bba 100644
--- a/arch/arm/boot/dts/at91-sama7g5ek.dts
+++ b/arch/arm/boot/dts/at91-sama7g5ek.dts
@@ -764,8 +764,9 @@ &rtt {
&sdmmc0 {
bus-width = <8>;
non-removable;
- no-1-8-v;
sdhci-caps-mask = <0x0 0x00200000>;
+ vmmc-supply = <&vdd_3v3>;
+ vqmmc-supply = <&vldo1>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_sdmmc0_default>;
status = "okay";
@@ -775,6 +776,8 @@ &sdmmc1 {
bus-width = <4>;
no-1-8-v;
sdhci-caps-mask = <0x0 0x00200000>;
+ vmmc-supply = <&vdd_3v3>;
+ vqmmc-supply = <&vdd_3v3>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_sdmmc1_default>;
status = "okay";
--
2.25.1
next reply other threads:[~2022-11-24 15:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-24 15:46 Eugen Hristev [this message]
2022-11-25 11:35 ` [PATCH] ARM: dts: at91: sama7g5ek: align power rails for sdmmc0/1 Claudiu.Beznea
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=20221124154610.246790-1-eugen.hristev@microchip.com \
--to=eugen.hristev@microchip.com \
--cc=claudiu.beznea@microchip.com \
--cc=devicetree@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=robh+dt@kernel.org \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox