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Date: Mon, 2 Mar 2015 10:53:59 +0100
From: Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To: Wenyou Yang <wenyou.yang@...el.com>
Cc: nicolas.ferre@...el.com, mark.rutland@....com,
devicetree@...r.kernel.org, linux@....linux.org.uk,
pawel.moll@....com, ijc+devicetree@...lion.org.uk,
linux-kernel@...r.kernel.org, robh+dt@...nel.org,
galak@...eaurora.org, linux@...im.org.za,
linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] ARM: dts: at919260/at91sam9g20: fix SRAM device tree node
Hi Wenyou,
I'd prefer fixing the sram lookup in pm.c. I'll propose something
however, I can't test on my side.
On 02/03/2015 at 14:03:29 +0800, Wenyou Yang wrote :
> Fix PM does not work on the at91sam9g20ek board
> --->8---
> at91_pm_sram_init: failed to find sram device!
> ---<8---
>
> Signed-off-by: Wenyou Yang <wenyou.yang@...el.com>
> ---
> arch/arm/boot/dts/at91sam9260.dtsi | 9 +++++++--
> arch/arm/boot/dts/at91sam9g20.dtsi | 9 +++++----
> 2 files changed, 12 insertions(+), 6 deletions(-)
>
> diff --git a/arch/arm/boot/dts/at91sam9260.dtsi b/arch/arm/boot/dts/at91sam9260.dtsi
> index fff0ee6..d1eb27c 100644
> --- a/arch/arm/boot/dts/at91sam9260.dtsi
> +++ b/arch/arm/boot/dts/at91sam9260.dtsi
> @@ -69,9 +69,14 @@
> };
> };
>
> - sram0: sram@...ff000 {
> + sram0: sram@...00000 {
> compatible = "mmio-sram";
> - reg = <0x002ff000 0x2000>;
> + reg = <0x00200000 0x1000>;
> + };
> +
> + sram1: sram@...00000 {
> + compatible = "mmio-sram";
> + reg = <0x00300000 0x1000>;
> };
>
> ahb {
> diff --git a/arch/arm/boot/dts/at91sam9g20.dtsi b/arch/arm/boot/dts/at91sam9g20.dtsi
> index f593016..eb9a62d 100644
> --- a/arch/arm/boot/dts/at91sam9g20.dtsi
> +++ b/arch/arm/boot/dts/at91sam9g20.dtsi
> @@ -16,13 +16,14 @@
> reg = <0x20000000 0x08000000>;
> };
>
> - sram0: sram@...ff000 {
> - status = "disabled";
> + sram0: sram@...00000 {
> + compatible = "mmio-sram";
> + reg = <0x00200000 0x4000>;
> };
>
> - sram1: sram@...fc000 {
> + sram1: sram@...00000 {
> compatible = "mmio-sram";
> - reg = <0x002fc000 0x8000>;
> + reg = <0x00300000 0x4000>;
> };
>
> ahb {
> --
> 1.7.9.5
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
--
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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