[PATCH v3 0/3] AM64: Update the locations of various elements in SRAM

[PATCH v3 0/3] AM64: Update the locations of various elements in SRAM

[Aswath Govindraju]

The following series of patches,
- Increase the maximum size of TF-A
- Update the location of TF-A due to a limitation for DFU boot
- Indicate reserved locations for DMSC code and secure proxy

changes since v2:
- split the patches into three
- added regions for indicating memory regions reserved for
  dmsc and secure proxy
- moved the TFA location to 0x701c4000

Aswath Govindraju (3):
  dts: ti: k3-am64-main: Update TF-A's maximum size and node name
  arm64: dts: ti: k3-am64-main: Indicate the memory reserved for
    DMSC-lite code and secure proxy communication buffer
  arm64: dts: ti: k3-am64-main: Update the location of TF-A

 arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

-- 
2.17.1

[PATCH v3 0/3] AM64: Update the locations of various elements in SRAM

[Aswath Govindraju]

The following series of patches,
- Increase the maximum size of TF-A
- Update the location of TF-A due to a limitation for DFU boot
- Indicate reserved locations for DMSC code and secure proxy

changes since v2:
- split the patches into three
- added regions for indicating memory regions reserved for
  dmsc and secure proxy
- moved the TFA location to 0x701c4000

Aswath Govindraju (3):
  dts: ti: k3-am64-main: Update TF-A's maximum size and node name
  arm64: dts: ti: k3-am64-main: Indicate the memory reserved for
    DMSC-lite code and secure proxy communication buffer
  arm64: dts: ti: k3-am64-main: Update the location of TF-A

 arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

-- 
2.17.1


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[PATCH v3 1/3] dts: ti: k3-am64-main: Update TF-A's maximum size and node name

[Aswath Govindraju]

The maximum size of TF-A 2.5 has been increased to 0x1c000 [1]. Therefore,
update this accordingly in the device tree node.

Also, update the node name to "tfa-sram".

[1] - https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git/commit/?id=2fb5312f61a7de8b7a70e1639199c4f14a10b6f9

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Reviewed-by: Suman Anna <s-anna@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
index dec54243f454..693fe24e7f7a 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
@@ -24,8 +24,8 @@
 		#size-cells = <1>;
 		ranges = <0x0 0x00 0x70000000 0x200000>;
 
-		atf-sram@0 {
-			reg = <0x0 0x1a000>;
+		tfa-sram@0 {
+			reg = <0x0 0x1c000>;
 		};
 	};
 
-- 
2.17.1

[PATCH v3 1/3] dts: ti: k3-am64-main: Update TF-A's maximum size and node name

[Aswath Govindraju]

The maximum size of TF-A 2.5 has been increased to 0x1c000 [1]. Therefore,
update this accordingly in the device tree node.

Also, update the node name to "tfa-sram".

[1] - https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git/commit/?id=2fb5312f61a7de8b7a70e1639199c4f14a10b6f9

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Reviewed-by: Suman Anna <s-anna@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
index dec54243f454..693fe24e7f7a 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
@@ -24,8 +24,8 @@
 		#size-cells = <1>;
 		ranges = <0x0 0x00 0x70000000 0x200000>;
 
-		atf-sram@0 {
-			reg = <0x0 0x1a000>;
+		tfa-sram@0 {
+			reg = <0x0 0x1c000>;
 		};
 	};
 
-- 
2.17.1


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[PATCH v3 2/3] arm64: dts: ti: k3-am64-main: Indicate the memory reserved for DMSC-lite code and secure proxy communication buffer

[Aswath Govindraju]

The final 128KB in SRAM is reserved by default for DMSC-lite code and
secure proxy communication buffer. The memory region used for DMSC-lite
code can be optionally freed up by secure firmware API[1]. However, the
buffer for secure proxy communication is not configurable. This default
hardware configuration is unique for AM64.

Therefore, indicate the area reserved for DMSC-lite code and secure proxy
communication buffer in the oc_sram device tree node.

[1] - http://downloads.ti.com/tisci/esd/latest/6_topic_user_guides/security_handover.html#triggering-security-handover

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
index 693fe24e7f7a..6a883f4349cb 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
@@ -27,6 +27,14 @@
 		tfa-sram@0 {
 			reg = <0x0 0x1c000>;
 		};
+
+		dmsc-sram@1e0000 {
+			reg = <0x1e0000 0x1c000>;
+		};
+
+		sproxy-sram@1fc000 {
+			reg = <0x1fc000 0x4000>;
+		};
 	};
 
 	main_conf: syscon@43000000 {
-- 
2.17.1

[PATCH v3 2/3] arm64: dts: ti: k3-am64-main: Indicate the memory reserved for DMSC-lite code and secure proxy communication buffer

[Aswath Govindraju]

The final 128KB in SRAM is reserved by default for DMSC-lite code and
secure proxy communication buffer. The memory region used for DMSC-lite
code can be optionally freed up by secure firmware API[1]. However, the
buffer for secure proxy communication is not configurable. This default
hardware configuration is unique for AM64.

Therefore, indicate the area reserved for DMSC-lite code and secure proxy
communication buffer in the oc_sram device tree node.

[1] - http://downloads.ti.com/tisci/esd/latest/6_topic_user_guides/security_handover.html#triggering-security-handover

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
index 693fe24e7f7a..6a883f4349cb 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
@@ -27,6 +27,14 @@
 		tfa-sram@0 {
 			reg = <0x0 0x1c000>;
 		};
+
+		dmsc-sram@1e0000 {
+			reg = <0x1e0000 0x1c000>;
+		};
+
+		sproxy-sram@1fc000 {
+			reg = <0x1fc000 0x4000>;
+		};
 	};
 
 	main_conf: syscon@43000000 {
-- 
2.17.1


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[PATCH v3 3/3] arm64: dts: ti: k3-am64-main: Update the location of TF-A

[Aswath Govindraju]

Due to a limitation for USB DFU boot mode, SPL load address has to be less
than  or equal to 0x70001000. So, load address of SPL and TF-A have been
moved to 0x70000000 and 0x701c4000 respectively.

Therefore, update TF-A's location in the device tree node.

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
index 6a883f4349cb..7ab3652dfdfb 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
@@ -24,8 +24,8 @@
 		#size-cells = <1>;
 		ranges = <0x0 0x00 0x70000000 0x200000>;
 
-		tfa-sram@0 {
-			reg = <0x0 0x1c000>;
+		tfa-sram@1c4000 {
+			reg = <0x1c4000 0x1c000>;
 		};
 
 		dmsc-sram@1e0000 {
-- 
2.17.1

[PATCH v3 3/3] arm64: dts: ti: k3-am64-main: Update the location of TF-A

[Aswath Govindraju]

Due to a limitation for USB DFU boot mode, SPL load address has to be less
than  or equal to 0x70001000. So, load address of SPL and TF-A have been
moved to 0x70000000 and 0x701c4000 respectively.

Therefore, update TF-A's location in the device tree node.

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
index 6a883f4349cb..7ab3652dfdfb 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
@@ -24,8 +24,8 @@
 		#size-cells = <1>;
 		ranges = <0x0 0x00 0x70000000 0x200000>;
 
-		tfa-sram@0 {
-			reg = <0x0 0x1c000>;
+		tfa-sram@1c4000 {
+			reg = <0x1c4000 0x1c000>;
 		};
 
 		dmsc-sram@1e0000 {
-- 
2.17.1


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Re: [PATCH v3 1/3] dts: ti: k3-am64-main: Update TF-A's maximum size and node name

[Suman Anna]

On 6/15/21 10:51 AM, Aswath Govindraju wrote:
> The maximum size of TF-A 2.5 has been increased to 0x1c000 [1]. Therefore,
> update this accordingly in the device tree node.
> 
> Also, update the node name to "tfa-sram".
> 
> [1] - https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git/commit/?id=2fb5312f61a7de8b7a70e1639199c4f14a10b6f9
> 
> Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
> Reviewed-by: Suman Anna <s-anna@ti.com>

Patch title should start with arm64: following the standard convention.
Sorry missed this in the prior review. Otherwise, everything LGTM.

regards
Suman

> ---
>  arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
> index dec54243f454..693fe24e7f7a 100644
> --- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
> @@ -24,8 +24,8 @@
>  		#size-cells = <1>;
>  		ranges = <0x0 0x00 0x70000000 0x200000>;
>  
> -		atf-sram@0 {
> -			reg = <0x0 0x1a000>;
> +		tfa-sram@0 {
> +			reg = <0x0 0x1c000>;
>  		};
>  	};
>  
> 

Re: [PATCH v3 1/3] dts: ti: k3-am64-main: Update TF-A's maximum size and node name

[Suman Anna]

On 6/15/21 10:51 AM, Aswath Govindraju wrote:
> The maximum size of TF-A 2.5 has been increased to 0x1c000 [1]. Therefore,
> update this accordingly in the device tree node.
> 
> Also, update the node name to "tfa-sram".
> 
> [1] - https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git/commit/?id=2fb5312f61a7de8b7a70e1639199c4f14a10b6f9
> 
> Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
> Reviewed-by: Suman Anna <s-anna@ti.com>

Patch title should start with arm64: following the standard convention.
Sorry missed this in the prior review. Otherwise, everything LGTM.

regards
Suman

> ---
>  arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
> index dec54243f454..693fe24e7f7a 100644
> --- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
> @@ -24,8 +24,8 @@
>  		#size-cells = <1>;
>  		ranges = <0x0 0x00 0x70000000 0x200000>;
>  
> -		atf-sram@0 {
> -			reg = <0x0 0x1a000>;
> +		tfa-sram@0 {
> +			reg = <0x0 0x1c000>;
>  		};
>  	};
>  
> 


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Re: [PATCH v3 0/3] AM64: Update the locations of various elements in SRAM

[Aswath Govindraju]

Hi,
On 15/06/21 9:21 pm, Aswath Govindraju wrote:
> The following series of patches,
> - Increase the maximum size of TF-A
> - Update the location of TF-A due to a limitation for DFU boot
> - Indicate reserved locations for DMSC code and secure proxy
> 
> changes since v2:
> - split the patches into three
> - added regions for indicating memory regions reserved for
>   dmsc and secure proxy
> - moved the TFA location to 0x701c4000
> 

Posted respin(v4) after correcting the titles of patches 1 and 2.

Thanks,
Aswath

> Aswath Govindraju (3):
>   dts: ti: k3-am64-main: Update TF-A's maximum size and node name
>   arm64: dts: ti: k3-am64-main: Indicate the memory reserved for
>     DMSC-lite code and secure proxy communication buffer
>   arm64: dts: ti: k3-am64-main: Update the location of TF-A
> 
>  arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 12 ++++++++++--
>  1 file changed, 10 insertions(+), 2 deletions(-)
> 

Re: [PATCH v3 0/3] AM64: Update the locations of various elements in SRAM

[Aswath Govindraju]

Hi,
On 15/06/21 9:21 pm, Aswath Govindraju wrote:
> The following series of patches,
> - Increase the maximum size of TF-A
> - Update the location of TF-A due to a limitation for DFU boot
> - Indicate reserved locations for DMSC code and secure proxy
> 
> changes since v2:
> - split the patches into three
> - added regions for indicating memory regions reserved for
>   dmsc and secure proxy
> - moved the TFA location to 0x701c4000
> 

Posted respin(v4) after correcting the titles of patches 1 and 2.

Thanks,
Aswath

> Aswath Govindraju (3):
>   dts: ti: k3-am64-main: Update TF-A's maximum size and node name
>   arm64: dts: ti: k3-am64-main: Indicate the memory reserved for
>     DMSC-lite code and secure proxy communication buffer
>   arm64: dts: ti: k3-am64-main: Update the location of TF-A
> 
>  arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 12 ++++++++++--
>  1 file changed, 10 insertions(+), 2 deletions(-)
> 


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