board: st: add generic board for STM32MP1 family
Add first support for STM32MP157C-ED1 board with "Basic" boot chain
1/ Boot Rom: load SPL with STM32 image header in SYSRAM
2/ SPL: power up and initialize the DDR and load U-Boot image
from SDCARD in DDR
3/ U-Boot: search and load extlinux.conf in SDCARD
(DISTRO activated)
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
This commit is contained in:
Patrick Delaunay
Tom Rini
parent
3d2d115a30
commit
f8598d9815
@ -38,4 +38,6 @@ config SYS_TEXT_BASE
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when DDR driver is used:
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DDR + 1MB (0xC0100000)
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source "board/st/stm32mp1/Kconfig"
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endif
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12
board/st/stm32mp1/Kconfig
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12
board/st/stm32mp1/Kconfig
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@ -0,0 +1,12 @@
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if TARGET_STM32MP1
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config SYS_BOARD
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default "stm32mp1"
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config SYS_VENDOR
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default "st"
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config SYS_CONFIG_NAME
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default "stm32mp1"
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endif
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7
board/st/stm32mp1/MAINTAINERS
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7
board/st/stm32mp1/MAINTAINERS
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@ -0,0 +1,7 @@
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STM32MP1 BOARD
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M: Patrick Delaunay <patrick.delaunay@st.com>
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S: Maintained
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F: board/st/stm32mp1
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F: include/configs/stm32mp1.h
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F: configs/stm32mp15_basic_defconfig
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F: arch/arm/dts/stm32mp157*
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13
board/st/stm32mp1/Makefile
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13
board/st/stm32mp1/Makefile
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@ -0,0 +1,13 @@
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#
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# Copyright (C) 2018, STMicroelectronics - All Rights Reserved
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#
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# SPDX-License-Identifier: GPL-2.0+ BSD-3-Clause
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#
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ifdef CONFIG_SPL_BUILD
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obj-y += spl.o
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else
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obj-y += stm32mp1.o
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endif
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obj-y += board.o
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191
board/st/stm32mp1/README
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191
board/st/stm32mp1/README
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@ -0,0 +1,191 @@
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#
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# Copyright (C) 2018 STMicroelectronics - All Rights Reserved
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#
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# SPDX-License-Identifier: GPL-2.0+ BSD-3-Clause
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#
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U-Boot on STMicroelectronics STM32MP1
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======================================
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1. Summary
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==========
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This is a quick instruction for setup stm32mp1 boards.
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2. Supported devices
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====================
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U-Boot supports one STMP32MP1 SoCs: STM32MP157
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The STM32MP157 is a Cortex-A MPU aimed at various applications.
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It features:
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- Dual core Cortex-A7 application core
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- 2D/3D image composition with GPU
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- Standard memories interface support
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- Standard connectivity, widely inherited from the STM32 MCU family
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- Comprehensive security support
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Everything is supported in Linux but U-Boot is limited to:
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1. UART
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2. SDCard/MMC controller (SDMMC)
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And the necessary drivers
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1. I2C
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2. STPMU1
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3. Clock, Reset
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Currently the following boards are supported:
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+ stm32mp157c-ed1
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3. Boot Sequences
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=================
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BootRom => FSBL in SYSRAM => SSBL in DDR => OS (Linux Kernel)
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with FSBL = First Stage Bootloader
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SSBL = Second Stage Bootloader
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One boot configuration is supported:
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The "Basic" boot chain (defconfig_file : stm32mp15_basic_defconfig)
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BootRom => FSBL = U-Boot SPL => SSBL = U-Boot
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SPL has limited security initialisation
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U-Boot is running in secure mode and provide a secure monitor to the kernel
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with only PSCI support (Power State Coordination Interface defined by ARM)
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All the STM32MP1 board supported by U-Boot use the same generic board
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stm32mp1 which support all the bootable devices.
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Each board is configurated only with the associated device tree.
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4. Device Tree Selection
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========================
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You need to select the appropriate device tree for your board,
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the supported device trees for stm32mp157 are:
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+ ed1: daughter board with pmic stpmu1
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dts: stm32mp157c-ed1
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5. Build Procedure
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==================
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1. Install required tools for U-Boot
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+ install package needed in U-Boot makefile
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(libssl-dev, swig, libpython-dev...)
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+ install ARMv7 toolchain for 32bit Cortex-A (from Linaro,
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from SDK for STM32MP1, or any crosstoolchains from your distribution)
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2. Set the cross compiler:
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# export CROSS_COMPILE=/path/to/toolchain/arm-linux-gnueabi-
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(you can use any gcc cross compiler compatible with U-Boot)
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3. Select the output directory (optional)
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# export KBUILD_OUTPUT=/path/to/output
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for example: use one output directory for each configuration
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# export KBUILD_OUTPUT=stm32mp15_basic
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4. Configure the U-Boot:
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# make <defconfig_file>
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- For basic boot mode: "stm32mp15_basic_defconfig"
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5. Configure the device-tree and build the U-Boot image:
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# make DEVICE_TREE=<name> all
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example:
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basic boot on ed1
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# export KBUILD_OUTPUT=stm32mp15_basic
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# make stm32mp15_basic_defconfig
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# make DEVICE_TREE=stm32mp157c-ed1 all
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6. Output files
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BootRom and ATF expect binaries with STM32 image header
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SPL expects file with U-Boot uImage header
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So in the output directory (selected by KBUILD_OUTPUT),
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you can found the needed files:
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+ FSBL = spl/u-boot-spl.stm32
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+ SSBL = u-boot.img
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6. Prepare an SDCard
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===================
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The minimal requirements for STMP32MP1 boot up to U-Boot are:
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- GPT partitioning (with gdisk or with sgdisk)
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- 2 fsbl partitions, named fsbl1 and fsbl2, size at least 256KiB
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- one ssbl partition for U-Boot
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Then the minimal GPT partition is:
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----- ------- --------- -------------
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| Num | Name | Size | Content |
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----- ------- -------- --------------
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| 1 | fsbl1 | 256 KiB | ATF or SPL |
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| 2 | fsbl2 | 256 KiB | ATF or SPL |
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| 3 | ssbl | enought | U-Boot |
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| * | - | - | Boot/Rootfs|
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----- ------- --------- -------------
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(*) add bootable partition for extlinux.conf
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following Generic Distribution
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(doc/README.distro for use)
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according the used card reader select the block device
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(/dev/sdx or /dev/mmcblk0)
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in the next example I use /dev/mmcblk0
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for example: with gpt table with 128 entries
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a) remove previous formatting
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# sgdisk -o /dev/<SDCard dev>
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b) create minimal image
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# sgdisk --resize-table=128 -a 1 \
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-n 1:34:545 -c 1:fsbl1 \
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-n 2:546:1057 -c 2:fsbl2 \
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-n 3:1058:5153 -c 3:ssbl \
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-p /dev/<SDCard dev>
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you can add other partition for kernel (rootfs)
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c) copy the FSBL (2 times) and SSBL file on the correct partition.
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in this example in partition 1 to 3
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for basic boot mode : <SDCard dev> = /dev/mmcblk0
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# dd if=u-boot-spl.stm32 of=/dev/mmcblk0p1
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# dd if=u-boot-spl.stm32 of=/dev/mmcblk0p2
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# dd if=u-boot.img of=/dev/mmcblk0p3
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7. Switch Setting
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==================
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You can select the boot mode, on the board ed1 with the switch SW1
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-----------------------------------
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Boot Mode BOOT2 BOOT1 BOOT0
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-----------------------------------
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Reserved 0 0 0
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NOR 0 0 1
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SD-Card 1 1 1
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SD-Card 1 0 1
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eMMC 0 1 0
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NAND 0 1 1
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Recovery 1 1 0
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Recovery 0 0 0
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To boot from SDCard, select BootPinMode = 1 1 1 and reset.
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Recovery is a boot from serial link (UART/USB) and it is used with
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STM32CubeProgrammer tool to load executable in RAM and to update the flash
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devices available on the board (NOR/NAND/eMMC/SDCARD).
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The communication between HOST and board is based on
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- for UARTs : the uart protocol used with all MCU STM32
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- for USB : based on USB DFU 1.1 (without the ST extensions used on MCU STM32)
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75
board/st/stm32mp1/board.c
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75
board/st/stm32mp1/board.c
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@ -0,0 +1,75 @@
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/*
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* Copyright (C) 2018, STMicroelectronics - All Rights Reserved
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*
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* SPDX-License-Identifier: GPL-2.0+ BSD-3-Clause
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*/
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#include <common.h>
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#include <dm.h>
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#include <asm/io.h>
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#include <asm/arch/ddr.h>
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#include <power/pmic.h>
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#include <power/stpmu1.h>
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#ifdef CONFIG_PMIC_STPMU1
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int board_ddr_power_init(void)
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{
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struct udevice *dev;
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int ret;
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ret = uclass_get_device_by_driver(UCLASS_PMIC,
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DM_GET_DRIVER(pmic_stpmu1), &dev);
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if (ret)
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/* No PMIC on board */
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return 0;
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/* Set LDO3 to sync mode */
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ret = pmic_reg_read(dev, STPMU1_LDOX_CTRL_REG(STPMU1_LDO3));
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if (ret < 0)
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return ret;
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ret &= ~STPMU1_LDO3_MODE;
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ret &= ~STPMU1_LDO12356_OUTPUT_MASK;
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ret |= STPMU1_LDO3_DDR_SEL << STPMU1_LDO12356_OUTPUT_SHIFT;
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ret = pmic_reg_write(dev, STPMU1_LDOX_CTRL_REG(STPMU1_LDO3),
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ret);
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if (ret < 0)
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return ret;
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/* Set BUCK2 to 1.35V */
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ret = pmic_clrsetbits(dev,
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STPMU1_BUCKX_CTRL_REG(STPMU1_BUCK2),
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STPMU1_BUCK_OUTPUT_MASK,
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STPMU1_BUCK2_1350000V);
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if (ret < 0)
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return ret;
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/* Enable BUCK2 and VREF */
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ret = pmic_clrsetbits(dev,
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STPMU1_BUCKX_CTRL_REG(STPMU1_BUCK2),
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STPMU1_BUCK_EN, STPMU1_BUCK_EN);
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if (ret < 0)
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return ret;
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mdelay(STPMU1_DEFAULT_START_UP_DELAY_MS);
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ret = pmic_clrsetbits(dev, STPMU1_VREF_CTRL_REG,
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STPMU1_VREF_EN, STPMU1_VREF_EN);
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if (ret < 0)
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return ret;
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mdelay(STPMU1_DEFAULT_START_UP_DELAY_MS);
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/* Enable LDO3 */
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ret = pmic_clrsetbits(dev,
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STPMU1_LDOX_CTRL_REG(STPMU1_LDO3),
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STPMU1_LDO_EN, STPMU1_LDO_EN);
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if (ret < 0)
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return ret;
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mdelay(STPMU1_DEFAULT_START_UP_DELAY_MS);
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return 0;
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}
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#endif
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33
board/st/stm32mp1/spl.c
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33
board/st/stm32mp1/spl.c
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@ -0,0 +1,33 @@
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/*
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* Copyright (C) 2018, STMicroelectronics - All Rights Reserved
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*
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* SPDX-License-Identifier: GPL-2.0+ BSD-3-Clause
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*/
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#include <config.h>
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#include <common.h>
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#include <spl.h>
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#include <dm.h>
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#include <ram.h>
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#include <asm/io.h>
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#include <post.h>
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#include <power/pmic.h>
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#include <power/stpmu1.h>
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#include <asm/arch/ddr.h>
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void spl_board_init(void)
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{
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/* Keep vdd on during the reset cycle */
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#if defined(CONFIG_PMIC_STPMU1) && defined(CONFIG_SPL_POWER_SUPPORT)
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struct udevice *dev;
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int ret;
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ret = uclass_get_device_by_driver(UCLASS_PMIC,
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DM_GET_DRIVER(pmic_stpmu1), &dev);
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if (!ret)
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pmic_clrsetbits(dev,
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STPMU1_MASK_RESET_BUCK,
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STPMU1_MASK_RESET_BUCK3,
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STPMU1_MASK_RESET_BUCK3);
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#endif
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}
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27
board/st/stm32mp1/stm32mp1.c
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27
board/st/stm32mp1/stm32mp1.c
Normal file
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/*
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* Copyright (C) 2018, STMicroelectronics - All Rights Reserved
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*
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* SPDX-License-Identifier: GPL-2.0+ BSD-3-Clause
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*/
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#include <config.h>
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#include <common.h>
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#include <asm/arch/stm32.h>
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/*
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* Get a global data pointer
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*/
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DECLARE_GLOBAL_DATA_PTR;
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int board_late_init(void)
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{
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return 0;
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}
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/* board dependent setup after realloc */
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int board_init(void)
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{
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/* address of boot parameters */
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gd->bd->bi_boot_params = STM32_DDR_BASE + 0x100;
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return 0;
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}
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36
configs/stm32mp15_basic_defconfig
Normal file
36
configs/stm32mp15_basic_defconfig
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@ -0,0 +1,36 @@
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CONFIG_ARM=y
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CONFIG_ARCH_STM32MP=y
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CONFIG_SYS_MALLOC_F_LEN=0x2000
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CONFIG_SPL_MMC_SUPPORT=y
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CONFIG_SPL=y
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CONFIG_TARGET_STM32MP1=y
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CONFIG_DEFAULT_DEVICE_TREE="stm32mp157c-ed1"
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CONFIG_DISTRO_DEFAULTS=y
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CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION=y
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CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION=3
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CONFIG_SPL_I2C_SUPPORT=y
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CONFIG_SPL_POWER_SUPPORT=y
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CONFIG_SYS_PROMPT="STM32MP> "
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# CONFIG_CMD_BOOTD is not set
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# CONFIG_CMD_ELF is not set
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# CONFIG_CMD_IMI is not set
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# CONFIG_CMD_XIMG is not set
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# CONFIG_CMD_EXPORTENV is not set
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# CONFIG_CMD_IMPORTENV is not set
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CONFIG_CMD_MEMINFO=y
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CONFIG_CMD_GPIO=y
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CONFIG_CMD_I2C=y
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CONFIG_CMD_MMC=y
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CONFIG_CMD_PMIC=y
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CONFIG_CMD_EXT4_WRITE=y
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# CONFIG_SPL_DOS_PARTITION is not set
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# CONFIG_SPL_ISO_PARTITION is not set
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CONFIG_DM_I2C=y
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CONFIG_SYS_I2C_STM32F7=y
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CONFIG_DM_MMC=y
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CONFIG_STM32_SDMMC2=y
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# CONFIG_SPL_PINCTRL_FULL is not set
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CONFIG_DM_PMIC=y
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CONFIG_PMIC_STPMU1=y
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CONFIG_STM32_SERIAL=y
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# CONFIG_EFI_LOADER is not set
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96
include/configs/stm32mp1.h
Normal file
96
include/configs/stm32mp1.h
Normal file
@ -0,0 +1,96 @@
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/*
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* Copyright (C) 2018, STMicroelectronics - All Rights Reserved
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*
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* Configuration settings for the STM32MP15x CPU
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*
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* SPDX-License-Identifier: GPL-2.0+ BSD-3-Clause
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*/
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#ifndef __CONFIG_H
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#define __CONFIG_H
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#include <linux/sizes.h>
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#include <asm/arch/stm32.h>
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#define CONFIG_PREBOOT
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/*
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* Number of clock ticks in 1 sec
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*/
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#define CONFIG_SYS_HZ 1000
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#define CONFIG_SYS_ARCH_TIMER
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#define CONFIG_SYS_HZ_CLOCK 64000000
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/*
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* malloc() pool size
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*/
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#define CONFIG_SYS_MALLOC_LEN SZ_32M
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/*
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* Configuration of the external SRAM memory used by U-Boot
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*/
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#define CONFIG_SYS_SDRAM_BASE STM32_DDR_BASE
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#define CONFIG_SYS_INIT_SP_ADDR CONFIG_SYS_TEXT_BASE
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#define CONFIG_NR_DRAM_BANKS 1
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/*
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* Console I/O buffer size
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*/
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#define CONFIG_SYS_CBSIZE SZ_1K
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/*
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* Needed by "loadb"
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*/
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#define CONFIG_SYS_LOAD_ADDR STM32_DDR_BASE
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/*
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* Env parameters
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*/
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#define CONFIG_ENV_SIZE SZ_4K
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/* ATAGs */
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#define CONFIG_CMDLINE_TAG
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#define CONFIG_SETUP_MEMORY_TAGS
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#define CONFIG_INITRD_TAG
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/* SPL support */
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#ifdef CONFIG_SPL
|
||||
/* BOOTROM load address */
|
||||
#define CONFIG_SPL_TEXT_BASE 0x2FFC2500
|
||||
/* SPL use DDR */
|
||||
#define CONFIG_SPL_BSS_START_ADDR 0xC0200000
|
||||
#define CONFIG_SPL_BSS_MAX_SIZE 0x00100000
|
||||
#define CONFIG_SYS_SPL_MALLOC_START 0xC0300000
|
||||
#define CONFIG_SYS_SPL_MALLOC_SIZE 0x00100000
|
||||
|
||||
/* limit SYSRAM usage to first 128 KB */
|
||||
#define CONFIG_SPL_MAX_SIZE 0x00020000
|
||||
#define CONFIG_SPL_STACK (STM32_SYSRAM_BASE + \
|
||||
STM32_SYSRAM_SIZE)
|
||||
#endif /* #ifdef CONFIG_SPL */
|
||||
|
||||
/*MMC SD*/
|
||||
#define CONFIG_SYS_MMC_MAX_DEVICE 3
|
||||
|
||||
#if !defined(CONFIG_SPL) || !defined(CONFIG_SPL_BUILD)
|
||||
|
||||
#define BOOT_TARGET_DEVICES(func) \
|
||||
func(MMC, mmc, 1) \
|
||||
func(MMC, mmc, 0) \
|
||||
func(MMC, mmc, 2)
|
||||
|
||||
#include <config_distro_bootcmd.h>
|
||||
|
||||
#define CONFIG_EXTRA_ENV_SETTINGS \
|
||||
"scriptaddr=0xC0000000\0" \
|
||||
"pxefile_addr_r=0xC0000000\0" \
|
||||
"kernel_addr_r=0xC1000000\0" \
|
||||
"fdt_addr_r=0xC4000000\0" \
|
||||
"ramdisk_addr_r=0xC4100000\0" \
|
||||
"fdt_high=0xffffffff\0" \
|
||||
"initrd_high=0xffffffff\0" \
|
||||
BOOTENV
|
||||
|
||||
#endif /* ifndef CONFIG_SPL_BUILD */
|
||||
|
||||
#endif /* __CONFIG_H */
|
||||
Loading…
Reference in New Issue
Block a user