don't have the design of signal voltage toggling by GPIO.
Please help to review.
Regards,
Steven
Steven Lee (2):
dt-bindings: mmc: sdhci-of-aspeed: Add power-gpio and
power-switch-gpio
mmc: sdhci-of-aspeed: Support toggling SD bus signal voltage by GPIO
.../devicetree/binding
, 1.8v power load switch will be enabled, SD1
signal voltage becomes 1.8v.
AST2600-A2 EVB also support toggling signal voltage for SD2 bus.
The design is the same as SD1 bus. It uses GPIOV2 as power-gpio and GPIOV3
as power-switch-gpio.
Signed-off-by: Steven Lee
---
.../devicetree/bindings/mmc
voltage is 3.3v, otherwise, 1.8v power load switch will be enabled, SD1
signal voltage becomes 1.8v.
AST2600-A2 EVB also support toggling signal voltage for SD2 bus.
The design is the same as SD1 bus. It uses GPIOV2 as power-gpio and
GPIOV3 as power-switch-gpio.
Signed-off-by: Steven Lee
---
drivers
The 04/10/2021 02:41, Rob Herring wrote:
> On Thu, Apr 08, 2021 at 09:52:17AM +0800, Steven Lee wrote:
> > AST2600-A2 EVB provides the reference design for enabling SD bus power
> > and toggling SD bus signal voltage by GPIO pins.
> > Add the definition and example for power-
The 04/12/2021 15:38, Ulf Hansson wrote:
> On Thu, 8 Apr 2021 at 03:52, Steven Lee wrote:
> >
> > AST2600-A2 EVB provides the reference design for enabling SD bus power
> > and toggling SD bus signal voltage by GPIO pins.
> > Add the definition and example for power
The 04/13/2021 10:43, Milton Miller II wrote:
>
>
> -"openbmc" wrote:
> -
>
> >To: Rob Herring
> >From: Steven Lee
> >Sent by: "openbmc"
> >Date: 04/12/2021 08:31PM
> >Cc: "open list:OPEN FIRMWARE AND FLATTE
The 04/09/2021 12:14, Andrew Jeffery wrote:
> Hi Steven,
>
> On Thu, 8 Apr 2021, at 11:22, Steven Lee wrote:
> > AST2600-A2 EVB provides reference design to support toggling signal
> > voltage between 3.3v and 1.8v by power-switch-gpio pin that defined in
> > th
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