* [PATCH 0/2] AM64: Update the locations of various elements in SRAM
@ 2021-06-15 15:37 Aswath Govindraju
2021-06-15 15:37 ` [PATCH 1/2] configs: am64x_evm_a53_defconfig: Move TF-A load address to 0x701c4000 Aswath Govindraju
2021-06-15 15:37 ` [PATCH 2/2] arm: dts: k3-am64-main: Indicate the memory reserved for DMSC-lite code and secure proxy communication buffer Aswath Govindraju
0 siblings, 2 replies; 3+ messages in thread
From: Aswath Govindraju @ 2021-06-15 15:37 UTC (permalink / raw
Cc: u-boot, Lokesh Vutla, Nishanth Menon, Dave Gerlach,
Vignesh Raghavendra, Kishon Vijay Abraham I, Suman Anna,
Aswath Govindraju
The following series of patches,
- Update the location of TF-A
- Indicate reserved locations for DMSC code and secure proxy
Aswath Govindraju (2):
configs: am64x_evm_a53_defconfig: Move TF-A load address to 0x701c4000
arm: dts: k3-am64-main: Indicate the memory reserved for DMSC-lite
code and secure proxy communication buffer
arch/arm/dts/k3-am64-main.dtsi | 12 ++++++++++--
configs/am64x_evm_a53_defconfig | 2 +-
2 files changed, 11 insertions(+), 3 deletions(-)
--
2.17.1
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH 1/2] configs: am64x_evm_a53_defconfig: Move TF-A load address to 0x701c4000
2021-06-15 15:37 [PATCH 0/2] AM64: Update the locations of various elements in SRAM Aswath Govindraju
@ 2021-06-15 15:37 ` Aswath Govindraju
2021-06-15 15:37 ` [PATCH 2/2] arm: dts: k3-am64-main: Indicate the memory reserved for DMSC-lite code and secure proxy communication buffer Aswath Govindraju
1 sibling, 0 replies; 3+ messages in thread
From: Aswath Govindraju @ 2021-06-15 15:37 UTC (permalink / raw
Cc: u-boot, Lokesh Vutla, Nishanth Menon, Dave Gerlach,
Vignesh Raghavendra, Kishon Vijay Abraham I, Suman Anna,
Aswath Govindraju
Earlier, the region 0x701C0000 to 0x701DFFFF was firewalled off because of
a bug in SYSFW. In the v2021.05 release of SYSFW this bug has been fixed
and this region can now be used for other allocations.
Therefore, move TF-A's load address to 0x701C4000 and update its location
in the device tree node.
Fixes: defd62ca137b ("arm: dts: k3-am64-main: Update the location of ATF in SRAM and increase its max size")
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
---
arch/arm/dts/k3-am64-main.dtsi | 4 ++--
configs/am64x_evm_a53_defconfig | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm/dts/k3-am64-main.dtsi b/arch/arm/dts/k3-am64-main.dtsi
index 6b5ebec6b1fe..9c04690e410a 100644
--- a/arch/arm/dts/k3-am64-main.dtsi
+++ b/arch/arm/dts/k3-am64-main.dtsi
@@ -13,8 +13,8 @@
#size-cells = <1>;
ranges = <0x0 0x00 0x70000000 0x200000>;
- atf-sram@0 {
- reg = <0x1a0000 0x1c000>;
+ tfa-sram@1c4000 {
+ reg = <0x1c4000 0x1c000>;
};
};
diff --git a/configs/am64x_evm_a53_defconfig b/configs/am64x_evm_a53_defconfig
index fbce9e96748f..464b496c816a 100644
--- a/configs/am64x_evm_a53_defconfig
+++ b/configs/am64x_evm_a53_defconfig
@@ -5,7 +5,7 @@ CONFIG_SPL_LIBGENERIC_SUPPORT=y
CONFIG_SYS_MALLOC_F_LEN=0x8000
CONFIG_NR_DRAM_BANKS=2
CONFIG_SOC_K3_AM642=y
-CONFIG_K3_ATF_LOAD_ADDR=0x701a0000
+CONFIG_K3_ATF_LOAD_ADDR=0x701c4000
CONFIG_TARGET_AM642_A53_EVM=y
CONFIG_ENV_SIZE=0x20000
CONFIG_SYS_SPI_U_BOOT_OFFS=0x280000
--
2.17.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH 2/2] arm: dts: k3-am64-main: Indicate the memory reserved for DMSC-lite code and secure proxy communication buffer
2021-06-15 15:37 [PATCH 0/2] AM64: Update the locations of various elements in SRAM Aswath Govindraju
2021-06-15 15:37 ` [PATCH 1/2] configs: am64x_evm_a53_defconfig: Move TF-A load address to 0x701c4000 Aswath Govindraju
@ 2021-06-15 15:37 ` Aswath Govindraju
1 sibling, 0 replies; 3+ messages in thread
From: Aswath Govindraju @ 2021-06-15 15:37 UTC (permalink / raw
Cc: u-boot, Lokesh Vutla, Nishanth Menon, Dave Gerlach,
Vignesh Raghavendra, Kishon Vijay Abraham I, Suman Anna,
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/arm/dts/k3-am64-main.dtsi | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm/dts/k3-am64-main.dtsi b/arch/arm/dts/k3-am64-main.dtsi
index 9c04690e410a..9c4b3cd2a98f 100644
--- a/arch/arm/dts/k3-am64-main.dtsi
+++ b/arch/arm/dts/k3-am64-main.dtsi
@@ -16,6 +16,14 @@
tfa-sram@1c4000 {
reg = <0x1c4000 0x1c000>;
};
+
+ dmsc-sram@1e0000 {
+ reg = <0x1e0000 0x1c000>;
+ };
+
+ sproxy-sram@1fc000 {
+ reg = <0x1fc000 0x4000>;
+ };
};
gic500: interrupt-controller@1800000 {
--
2.17.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
end of thread, other threads:[~2021-06-15 15:38 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2021-06-15 15:37 [PATCH 0/2] AM64: Update the locations of various elements in SRAM Aswath Govindraju
2021-06-15 15:37 ` [PATCH 1/2] configs: am64x_evm_a53_defconfig: Move TF-A load address to 0x701c4000 Aswath Govindraju
2021-06-15 15:37 ` [PATCH 2/2] arm: dts: k3-am64-main: Indicate the memory reserved for DMSC-lite code and secure proxy communication buffer Aswath Govindraju
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