Update readme: - list the supported SOC and change family to STM32MP15x - add warning on OTP write and prerequisite: check if MAC address is not yet provisioned. - Use filesize for mmc write command (avoid to write all partition with ${partsize}). ${filesize} and ${partsize} are set by previous load command.
Signed-off-by: Patrick Delaunay patrick.delaunay@st.com ---
board/st/stm32mp1/README | 52 ++++++++++++++++++++++++++-------------- 1 file changed, 34 insertions(+), 18 deletions(-)
diff --git a/board/st/stm32mp1/README b/board/st/stm32mp1/README index f2069bcefa..5d7465a8c8 100644 --- a/board/st/stm32mp1/README +++ b/board/st/stm32mp1/README @@ -3,8 +3,8 @@ SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause # Copyright (C) 2018 STMicroelectronics - All Rights Reserved #
-U-Boot on STMicroelectronics STM32MP1 -====================================== +U-Boot on STMicroelectronics STM32MP15x +=======================================
1. Summary ========== @@ -12,12 +12,12 @@ This is a quick instruction for setup stm32mp1 boards.
2. Supported devices ==================== -U-Boot supports one STMP32MP1 SoCs: STM32MP157 +U-Boot supports STMP32MP15x SoCs: STM32MP157, STM32MP153 and STM32MP151
-The STM32MP157 is a Cortex-A MPU aimed at various applications. +The STM32MP15x is a Cortex-A MPU aimed at various applications. It features: -- Dual core Cortex-A7 application core -- 2D/3D image composition with GPU +- Dual core Cortex-A7 application core (Single on STM32MP151) +- 2D/3D image composition with GPU (only on STM32MP157) - Standard memories interface support - Standard connectivity, widely inherited from the STM32 MCU family - Comprehensive security support @@ -37,11 +37,11 @@ And the necessary drivers 4. Fuse
Currently the following boards are supported: -+ stm32mp157c-ev1 -+ stm32mp157c-ed1 -+ stm32mp157a-dk1 -+ stm32mp157c-dk2 -+ stm32mp157a-avenger96 ++ stm32mp157a-avenger96.dts ++ stm32mp157a-dk1.dts ++ stm32mp157c-dk2.dts ++ stm32mp157c-ed1.dts ++ stm32mp157c-ev1.dts
3. Boot Sequences ================= @@ -74,7 +74,7 @@ with FSBL = First Stage Bootloader U-Boot is running in secure mode and provide a secure monitor to the kernel with only PSCI support (Power State Coordination Interface defined by ARM).
-All the STM32MP1 boards supported by U-Boot use the same generic board +All the STM32MP15x boards supported by U-Boot use the same generic board stm32mp1 which support all the bootable devices.
Each board is configurated only with the associated device tree. @@ -108,7 +108,7 @@ the supported device trees for stm32mp157 are: + install package needed in U-Boot makefile (libssl-dev, swig, libpython-dev...) + install ARMv7 toolchain for 32bit Cortex-A (from Linaro, - from SDK for STM32MP1, or any crosstoolchains from your distribution) + from SDK for STM32MP15x, or any crosstoolchains from your distribution)
2. Set the cross compiler:
@@ -323,8 +323,7 @@ c) copy U-Boot in first GPT partition of eMMC # ext4load mmc 0:4 0xC0000000 u-boot.img # mmc dev 1 # part start mmc 1 1 partstart - # part size mmc 1 1 partsize - # mmc write ${fileaddr} ${partstart} ${partsize} + # mmc write ${fileaddr} ${partstart} ${filesize}
To boot from eMMC, select BootPinMode = 0 1 0 and reset.
@@ -334,14 +333,27 @@ To boot from eMMC, select BootPinMode = 0 1 0 and reset. Please read doc/README.enetaddr for the implementation guidelines for mac id usage. Basically, environment has precedence over board specific storage.
-Mac id storage and retrieval in stm32mp otp : +For STMicroelectonics board, it is retrieved in STM32MP15x otp : - OTP_57[31:0] = MAC_ADDR[31:0] - 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:
- example to set mac address "12:34:56:78:9a:bc" + Prerequisite: check if a MAC address isn't yet programmed in OTP + + 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> env print ethaddr + ## Error: "ethaddr" not defined + + Example to set mac address "12:34:56:78:9a:bc"
1- Write OTP STM32MP> fuse prog -y 0 57 0x78563412 0x0000bc9a @@ -355,9 +367,13 @@ on bank 0 to access to internal OTP: ### Setting environment from OTP MAC address = "12:34:56:78:9a:bc"
4 check env update - STM32MP> print ethaddr + STM32MP> env print ethaddr ethaddr=12:34:56:78:9a:bc
+warning:: This MAC address provisioning can't be executed twice on the same + board as the OTP are protected. It is already done for the board + provided by STMicroelectronics. + 10. Coprocessor firmware ========================