From: Aleksey Nasibulin alealexpro100@ya.ru
Linksys ea6500-v2 have 256MB of ram. Currently we only use 128MB. Expand the definition to use all the available RAM.
Fixes: 03e96644d7a8 ("ARM: dts: BCM5301X: Add basic DT for Linksys EA6500 V2") Signed-off-by: Aleksey Nasibulin alealexpro100@ya.ru Signed-off-by: Christian Marangi ansuelsmth@gmail.com Cc: stable@vger.kernel.org --- arch/arm/boot/dts/broadcom/bcm4708-linksys-ea6500-v2.dts | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/broadcom/bcm4708-linksys-ea6500-v2.dts b/arch/arm/boot/dts/broadcom/bcm4708-linksys-ea6500-v2.dts index f1412ba83def..0454423fe166 100644 --- a/arch/arm/boot/dts/broadcom/bcm4708-linksys-ea6500-v2.dts +++ b/arch/arm/boot/dts/broadcom/bcm4708-linksys-ea6500-v2.dts @@ -19,7 +19,8 @@ chosen {
memory@0 { device_type = "memory"; - reg = <0x00000000 0x08000000>; + reg = <0x00000000 0x08000000>, + <0x88000000 0x08000000>; };
gpio-keys {
--- a/arch/arm/boot/dts/broadcom/bcm4708-linksys-ea6500-v2.dts +++ b/arch/arm/boot/dts/broadcom/bcm4708-linksys-ea6500-v2.dts @@ -19,7 +19,8 @@ chosen { memory@0 { device_type = "memory";
reg = <0x00000000 0x08000000>;
reg = <0x00000000 0x08000000>,
<0x88000000 0x08000000>;
So there is a hole in the middle? Does this require any special CONFIG_ option to support sparse memory?
Andrew
On 12.07.2023 17:23, Andrew Lunn wrote:
--- a/arch/arm/boot/dts/broadcom/bcm4708-linksys-ea6500-v2.dts +++ b/arch/arm/boot/dts/broadcom/bcm4708-linksys-ea6500-v2.dts @@ -19,7 +19,8 @@ chosen { memory@0 { device_type = "memory";
reg = <0x00000000 0x08000000>;
reg = <0x00000000 0x08000000>,
<0x88000000 0x08000000>;
So there is a hole in the middle? Does this require any special CONFIG_ option to support sparse memory?
This is how RAM is mapped on all known Northstar devices. Using two blocks.
I've heard there is a way to design Northstar SoC board to have all RAM in one region but thay requires disabling something (I don't remember what) and in practice to vendor decided to do that.
AFAIK no extra CONFIG_* option is needed to make Linux map multiple RAM regions.
On 12.07.2023 03:40, Christian Marangi wrote:
From: Aleksey Nasibulin alealexpro100@ya.ru
Linksys ea6500-v2 have 256MB of ram. Currently we only use 128MB. Expand the definition to use all the available RAM.
Fixes: 03e96644d7a8 ("ARM: dts: BCM5301X: Add basic DT for Linksys EA6500 V2") Signed-off-by: Aleksey Nasibulin alealexpro100@ya.ru Signed-off-by: Christian Marangi ansuelsmth@gmail.com Cc: stable@vger.kernel.org
Acked-by: Rafał Miłecki rafal@milecki.pl
From: Florian Fainelli f.fainelli@gmail.com
On Wed, 12 Jul 2023 03:40:17 +0200, Christian Marangi ansuelsmth@gmail.com wrote:
From: Aleksey Nasibulin alealexpro100@ya.ru
Linksys ea6500-v2 have 256MB of ram. Currently we only use 128MB. Expand the definition to use all the available RAM.
Fixes: 03e96644d7a8 ("ARM: dts: BCM5301X: Add basic DT for Linksys EA6500 V2") Signed-off-by: Aleksey Nasibulin alealexpro100@ya.ru Signed-off-by: Christian Marangi ansuelsmth@gmail.com Cc: stable@vger.kernel.org
Applied to https://github.com/Broadcom/stblinux/commits/devicetree/next, thanks! -- Florian
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