* [PATCH] arm64: dts: ti: k3-am65: Add MSMC RAM node
@ 2019-01-11 9:44 Roger Quadros
2019-02-05 12:25 ` Roger Quadros
0 siblings, 1 reply; 3+ messages in thread
From: Roger Quadros @ 2019-01-11 9:44 UTC (permalink / raw)
To: t-kristo
Cc: robh+dt, linux-arm-kernel, devicetree, linux-kernel,
Roger Quadros, Nishanth Menon, Lokesh Vutla, Andrew F . Davis
The AM65 SoC has 2MB MSMC RAM. Add this as a mmio-sram
node so drivers can use it via genpool API.
Following areas are marked reserved:
- Lower 128KB for ATF
- 64KB@0xf0000 for SYSFW
- Upper 1MB for cache
The reserved locations are subject to change at runtime by
the bootloader.
Cc: Nishanth Menon <nm@ti.com>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Cc: Andrew F. Davis <afd@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
---
arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
index 272cf8f..5a18150 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
@@ -6,6 +6,26 @@
*/
&cbass_main {
+ msmc_ram: sram@70000000 {
+ compatible = "mmio-sram";
+ reg = <0x0 0x70000000 0x0 0x200000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x0 0x70000000 0x200000>;
+
+ atf-sram@0 {
+ reg = <0x0 0x20000>;
+ };
+
+ sysfw-sram@f0000 {
+ reg = <0xf0000 0x10000>;
+ };
+
+ l3cache-sram@100000 {
+ reg = <0x100000 0x100000>;
+ };
+ };
+
gic500: interrupt-controller@1800000 {
compatible = "arm,gic-v3";
#address-cells = <2>;
--
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] arm64: dts: ti: k3-am65: Add MSMC RAM node
2019-01-11 9:44 [PATCH] arm64: dts: ti: k3-am65: Add MSMC RAM node Roger Quadros
@ 2019-02-05 12:25 ` Roger Quadros
2019-02-15 8:46 ` Tero Kristo
0 siblings, 1 reply; 3+ messages in thread
From: Roger Quadros @ 2019-02-05 12:25 UTC (permalink / raw)
To: t-kristo
Cc: robh+dt, linux-arm-kernel, devicetree, linux-kernel,
Nishanth Menon, Lokesh Vutla, Andrew F . Davis
Tero,
On 11/01/19 11:44, Roger Quadros wrote:
> The AM65 SoC has 2MB MSMC RAM. Add this as a mmio-sram
> node so drivers can use it via genpool API.
>
> Following areas are marked reserved:
> - Lower 128KB for ATF
> - 64KB@0xf0000 for SYSFW
> - Upper 1MB for cache
>
> The reserved locations are subject to change at runtime by
> the bootloader.
>
> Cc: Nishanth Menon <nm@ti.com>
> Cc: Lokesh Vutla <lokeshvutla@ti.com>
> Cc: Andrew F. Davis <afd@ti.com>
> Signed-off-by: Roger Quadros <rogerq@ti.com>
Is this patch good to pick for -next?
cheers,
-roger
> ---
> arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 20 ++++++++++++++++++++
> 1 file changed, 20 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> index 272cf8f..5a18150 100644
> --- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> @@ -6,6 +6,26 @@
> */
>
> &cbass_main {
> + msmc_ram: sram@70000000 {
> + compatible = "mmio-sram";
> + reg = <0x0 0x70000000 0x0 0x200000>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges = <0x0 0x0 0x70000000 0x200000>;
> +
> + atf-sram@0 {
> + reg = <0x0 0x20000>;
> + };
> +
> + sysfw-sram@f0000 {
> + reg = <0xf0000 0x10000>;
> + };
> +
> + l3cache-sram@100000 {
> + reg = <0x100000 0x100000>;
> + };
> + };
> +
> gic500: interrupt-controller@1800000 {
> compatible = "arm,gic-v3";
> #address-cells = <2>;
>
--
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] arm64: dts: ti: k3-am65: Add MSMC RAM node
2019-02-05 12:25 ` Roger Quadros
@ 2019-02-15 8:46 ` Tero Kristo
0 siblings, 0 replies; 3+ messages in thread
From: Tero Kristo @ 2019-02-15 8:46 UTC (permalink / raw)
To: Roger Quadros
Cc: robh+dt, linux-arm-kernel, devicetree, linux-kernel,
Nishanth Menon, Lokesh Vutla, Andrew F . Davis
On 05/02/2019 14:25, Roger Quadros wrote:
> Tero,
>
> On 11/01/19 11:44, Roger Quadros wrote:
>> The AM65 SoC has 2MB MSMC RAM. Add this as a mmio-sram
>> node so drivers can use it via genpool API.
>>
>> Following areas are marked reserved:
>> - Lower 128KB for ATF
>> - 64KB@0xf0000 for SYSFW
>> - Upper 1MB for cache
>>
>> The reserved locations are subject to change at runtime by
>> the bootloader.
>>
>> Cc: Nishanth Menon <nm@ti.com>
>> Cc: Lokesh Vutla <lokeshvutla@ti.com>
>> Cc: Andrew F. Davis <afd@ti.com>
>> Signed-off-by: Roger Quadros <rogerq@ti.com>
>
> Is this patch good to pick for -next?
Queued for 5.1, thanks.
-Tero
>
> cheers,
> -roger
>
>> ---
>> arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 20 ++++++++++++++++++++
>> 1 file changed, 20 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
>> index 272cf8f..5a18150 100644
>> --- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
>> +++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
>> @@ -6,6 +6,26 @@
>> */
>>
>> &cbass_main {
>> + msmc_ram: sram@70000000 {
>> + compatible = "mmio-sram";
>> + reg = <0x0 0x70000000 0x0 0x200000>;
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> + ranges = <0x0 0x0 0x70000000 0x200000>;
>> +
>> + atf-sram@0 {
>> + reg = <0x0 0x20000>;
>> + };
>> +
>> + sysfw-sram@f0000 {
>> + reg = <0xf0000 0x10000>;
>> + };
>> +
>> + l3cache-sram@100000 {
>> + reg = <0x100000 0x100000>;
>> + };
>> + };
>> +
>> gic500: interrupt-controller@1800000 {
>> compatible = "arm,gic-v3";
>> #address-cells = <2>;
>>
>
--
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
^ permalink raw reply [flat|nested] 3+ messages in thread
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2019-01-11 9:44 [PATCH] arm64: dts: ti: k3-am65: Add MSMC RAM node Roger Quadros
2019-02-05 12:25 ` Roger Quadros
2019-02-15 8:46 ` Tero Kristo
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