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stm32mp1: update README

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Add latest information and correct some information.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
This commit is contained in:
Patrick Delaunay 2019-07-05 17:20:18 +02:00
parent f4cb5d69c2
commit 526558c63b
1 changed files with 12 additions and 3 deletions
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15
board/st/stm32mp1/README
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@ -25,6 +25,10 @@ It features:
Everything is supported in Linux but U-Boot is limited to:
1. UART
2. SDCard/MMC controller (SDMMC)
3. NAND controller (FMC)
4. NOR controller (QSPI)
5. USB controller (OTG DWC2)
6. Ethernet controller
And the necessary drivers
1. I2C
@ -54,13 +58,13 @@ with FSBL = First Stage Bootloader
TF-A performs a full initialization of Secure peripherals and installs a
secure monitor.
U-Boot is running in normal world and uses TF-A monitor
to access to secure resources
to access to secure resources.
2) The "Basic" boot chain (defconfig_file : stm32mp15_basic_defconfig)
BootRom => FSBL = U-Boot SPL => SSBL = U-Boot
SPL has limited security initialisation
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)
with only PSCI support (Power State Coordination Interface defined by ARM).
All the STM32MP1 boards supported by U-Boot use the same generic board
stm32mp1 which support all the bootable devices.
@ -111,6 +115,9 @@ the supported device trees for stm32mp157 are:
# export KBUILD_OUTPUT=stm32mp15_trusted
# export KBUILD_OUTPUT=stm32mp15_basic
you can build outside of code directory:
# export KBUILD_OUTPUT=../build/stm32mp15_trusted
4. Configure U-Boot:
# make <defconfig_file>
@ -170,6 +177,8 @@ the supported device trees for stm32mp157 are:
You can select the boot mode, on the board ed1 with the switch SW1
- on the daugther board ed1 with the switch SW1 : BOOT0, BOOT1, BOOT2
-----------------------------------
Boot Mode BOOT2 BOOT1 BOOT0
-----------------------------------
@ -267,7 +276,7 @@ for example: with gpt table with 128 entries
# dd if=tf-a.stm32 of=/dev/mmcblk0p2
# dd if=u-boot.stm32 of=/dev/mmcblk0p3
To boot from SDCard, select BootPinMode = 1 1 1 and reset.
To boot from SDCard, select BootPinMode = 1 0 1 and reset.
8. Prepare eMMC
===============