diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/board/st/stm32mp1.rst | 42 | ||||
| -rw-r--r-- | doc/device-tree-bindings/memory-controllers/st,stm32mp1-ddr.txt | 2 |
2 files changed, 34 insertions, 10 deletions
diff --git a/doc/board/st/stm32mp1.rst b/doc/board/st/stm32mp1.rst index 1640bf910ec..b7a0fbfd035 100644 --- a/doc/board/st/stm32mp1.rst +++ b/doc/board/st/stm32mp1.rst @@ -25,6 +25,14 @@ It features: - Standard connectivity, widely inherited from the STM32 MCU family - Comprehensive security support +Each line comes with a security option (cryptography & secure boot) and +a Cortex-A frequency option: + + - A : Cortex-A7 @ 650 MHz + - C : Secure Boot + HW Crypto + Cortex-A7 @ 650 MHz + - D : Cortex-A7 @ 800 MHz + - F : Secure Boot + HW Crypto + Cortex-A7 @ 800 MHz + Everything is supported in Linux but U-Boot is limited to: 1. UART @@ -416,20 +424,26 @@ For STMicroelectonics board, it is retrieved in STM32MP15x OTP : - OTP_58[15:0] = MAC_ADDR[47:32] To program a MAC address on virgin OTP words above, you can use the fuse command -on bank 0 to access to internal OTP: +on bank 0 to access to internal OTP and lock them: Prerequisite: check if a MAC address isn't yet programmed in OTP -1) check OTP: their value must be equal to 0 +1) check OTP: their value must be equal to 0:: + + STM32MP> fuse sense 0 57 2 + Sensing bank 0: + Word 0x00000039: 00000000 00000000 + +2) check environment variable:: - STM32MP> fuse sense 0 57 2 - Sensing bank 0: - Word 0x00000039: 00000000 00000000 + STM32MP> env print ethaddr + ## Error: "ethaddr" not defined -2) check environment variable +3) check lock status of fuse 57 & 58 (at 0x39, 0=unlocked, 1=locked):: - STM32MP> env print ethaddr - ## Error: "ethaddr" not defined + STM32MP> fuse sense 0 0x10000039 2 + Sensing bank 0: + Word 0x10000039: 00000000 00000000 Example to set mac address "12:34:56:78:9a:bc" @@ -443,11 +457,19 @@ Example to set mac address "12:34:56:78:9a:bc" Sensing bank 0: Word 0x00000039: 78563412 0000bc9a -3) next REBOOT, in the trace:: +3) Lock OTP:: + + STM32MP> fuse prog 0 0x10000039 1 1 + + STM32MP> fuse sense 0 0x10000039 2 + Sensing bank 0: + Word 0x10000039: 00000001 00000001 + +4) next REBOOT, in the trace:: ### Setting environment from OTP MAC address = "12:34:56:78:9a:bc" -4) check env update:: +5) check env update:: STM32MP> env print ethaddr ethaddr=12:34:56:78:9a:bc diff --git a/doc/device-tree-bindings/memory-controllers/st,stm32mp1-ddr.txt b/doc/device-tree-bindings/memory-controllers/st,stm32mp1-ddr.txt index ee708ce92c7..ac6a7df4327 100644 --- a/doc/device-tree-bindings/memory-controllers/st,stm32mp1-ddr.txt +++ b/doc/device-tree-bindings/memory-controllers/st,stm32mp1-ddr.txt @@ -129,6 +129,8 @@ phyc attributes: MR3 - st,phy-cal : phy cal depending of calibration or tuning of DDR + This parameter is optional; when it is absent the built-in PHY + calibration is done. for STM32MP15x: 12 values are requested in this order DX0DLLCR DX0DQTR |