SA8155P Automotive Development Platform is Qualcomm SA8155-based board for developers. The nice thing that it has unlocked loaders with test keys support, which means that U-Boot for this platform can be launched at earlier stages.
This patch adds basic board support with only serial port and networking operation. I am using U-Boot to ease up Xen porting onto this board, so I am mostly interesting in booting U-Boot in EL2. But more conventional setup with Android boot image is supported as well.
Signed-off-by: Volodymyr Babchuk volodymyr_babchuk@epam.com
---
arch/arm/dts/sa8155p-adp-u-boot.dtsi | 30 ++++++++ arch/arm/mach-snapdragon/Kconfig | 14 ++++ arch/arm/mach-snapdragon/Makefile | 2 + arch/arm/mach-snapdragon/init_sa8155p.c | 30 ++++++++ arch/arm/mach-snapdragon/sysmap-sm8150.c | 31 ++++++++ board/qualcomm/sa8155p-adp/Kconfig | 12 +++ board/qualcomm/sa8155p-adp/MAINTAINERS | 6 ++ configs/sa8155p_adp_defconfig | 33 +++++++++ doc/board/qualcomm/index.rst | 1 + doc/board/qualcomm/sa8155p-adp.rst | 94 ++++++++++++++++++++++++ include/configs/sa8155p_adp.h | 25 +++++++ 11 files changed, 278 insertions(+) create mode 100644 arch/arm/dts/sa8155p-adp-u-boot.dtsi create mode 100644 arch/arm/mach-snapdragon/init_sa8155p.c create mode 100644 arch/arm/mach-snapdragon/sysmap-sm8150.c create mode 100644 board/qualcomm/sa8155p-adp/Kconfig create mode 100644 board/qualcomm/sa8155p-adp/MAINTAINERS create mode 100644 configs/sa8155p_adp_defconfig create mode 100644 doc/board/qualcomm/sa8155p-adp.rst create mode 100644 include/configs/sa8155p_adp.h
diff --git a/arch/arm/dts/sa8155p-adp-u-boot.dtsi b/arch/arm/dts/sa8155p-adp-u-boot.dtsi new file mode 100644 index 0000000000..4484ea2734 --- /dev/null +++ b/arch/arm/dts/sa8155p-adp-u-boot.dtsi @@ -0,0 +1,30 @@ +// SPDX-License-Identifier: BSD-3-Clause +/* + * Qualcomm SA8155P-ADP device tree fixups for U-BOot + * + * Volodymyr Babchuk volodymyr_babchuk@epam.com + * Copyright (c) 2024 EPAM Systems. + */ + +/ { + /* Populate memory node with actual memory configuration */ + memory@80000000 { + reg = <0x00 0x80000000 0x00 0x39900000> , + <0x02 0x0 0x1 0x7fd00000>, + <0x00 0xC0000000 0x1 0x40000000>; + }; +}; + +ðernet { + /* Ethernet driver tries to find reset by name */ + reset-names = "emac"; +}; + +&tlmm { + /* U-Boot pinctrl driver does not understand multiple tiles */ + reg = <0x0 0x03000000 0x0 0x1000000>; + /delete-property/ reg-names; + + /* U-Boot ethernet driver wants to drive reset as GPIO */ + /delete-node/ phy-reset-pins; +}; diff --git a/arch/arm/mach-snapdragon/Kconfig b/arch/arm/mach-snapdragon/Kconfig index ad66710819..6431b6eca0 100644 --- a/arch/arm/mach-snapdragon/Kconfig +++ b/arch/arm/mach-snapdragon/Kconfig @@ -19,6 +19,12 @@ config SDM845 imply PINCTRL_QCOM_SDM845 imply BUTTON_QCOM_PMIC
+config SM8150 + bool "Qualcomm Snapdragon 855 SoC" + select LINUX_KERNEL_IMAGE_HEADER + imply CLK_QCOM_SM8150 + imply PINCTRL_QCOM_SDM8150 + config LNX_KRNL_IMG_TEXT_OFFSET_BASE default 0x80000000
@@ -90,6 +96,13 @@ config TARGET_QCS404EVB - 1GiB RAM - 8GiB eMMC, uSD slot
+config TARGET_SA8155P_ADP + bool "SA8155 Automotive Development Platform" + help + Support for Lantronix/Qualcomm SA8155P Automotive Development Platform + based on Snapdragon SA8155P + select SM8150 + endchoice
source "board/qualcomm/dragonboard410c/Kconfig" @@ -97,5 +110,6 @@ source "board/qualcomm/dragonboard820c/Kconfig" source "board/qualcomm/dragonboard845c/Kconfig" source "board/samsung/starqltechn/Kconfig" source "board/qualcomm/qcs404-evb/Kconfig" +source "board/qualcomm/sa8155p-adp/Kconfig"
endif diff --git a/arch/arm/mach-snapdragon/Makefile b/arch/arm/mach-snapdragon/Makefile index 3a3a297c17..ff2887e384 100644 --- a/arch/arm/mach-snapdragon/Makefile +++ b/arch/arm/mach-snapdragon/Makefile @@ -4,8 +4,10 @@
obj-$(CONFIG_SDM845) += sysmap-sdm845.o obj-$(CONFIG_SDM845) += init_sdm845.o +obj-$(CONFIG_SM8150) += sysmap-sm8150.o obj-$(CONFIG_TARGET_DRAGONBOARD820C) += sysmap-apq8096.o obj-$(CONFIG_TARGET_DRAGONBOARD410C) += sysmap-apq8016.o obj-y += misc.o obj-y += dram.o obj-$(CONFIG_TARGET_QCS404EVB) += sysmap-qcs404.o +obj-$(CONFIG_TARGET_SA8155P_ADP) += init_sa8155p.o diff --git a/arch/arm/mach-snapdragon/init_sa8155p.c b/arch/arm/mach-snapdragon/init_sa8155p.c new file mode 100644 index 0000000000..64dd07ae92 --- /dev/null +++ b/arch/arm/mach-snapdragon/init_sa8155p.c @@ -0,0 +1,30 @@ +// SPDX-License-Identifier: BSD-3-Clause +/* + * Qualcomm SM8150 initialization procedures + * + * Volodymyr Babchuk volodymyr_babchuk@epam.com + * Copyright (c) 2024 EPAM Systems. + */ + +#include <init.h> +#include <env.h> +#include <asm/system.h> +#include <dm.h> +#include <asm/arch/misc.h> + +DECLARE_GLOBAL_DATA_PTR; + +int dram_init(void) +{ + return fdtdec_setup_mem_size_base(); +} + +void reset_cpu(void) +{ + psci_system_reset(); +} + +int board_init(void) +{ + return 0; +} diff --git a/arch/arm/mach-snapdragon/sysmap-sm8150.c b/arch/arm/mach-snapdragon/sysmap-sm8150.c new file mode 100644 index 0000000000..7250f5b398 --- /dev/null +++ b/arch/arm/mach-snapdragon/sysmap-sm8150.c @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: BSD-3-Clause +/* + * Qualcomm SM8150 memory map + * + * Volodymyr Babchuk volodymyr_babchuk@epam.com + * Copyright (c) 2024 EPAM Systems. + */ + +#include <asm/armv8/mmu.h> + +static struct mm_region sm8150_mem_map[] = { + { + .virt = 0x0UL, /* Peripheral block */ + .phys = 0x0UL, /* Peripheral block */ + .size = 0x10000000UL, + .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | + PTE_BLOCK_NON_SHARE | + PTE_BLOCK_PXN | PTE_BLOCK_UXN + }, { + .virt = 0x80000000UL, /* DDR */ + .phys = 0x80000000UL, /* DDR */ + .size = 0x200000000UL, /* 8GiB - maximum allowed memory */ + .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | + PTE_BLOCK_INNER_SHARE + }, { + /* List terminator */ + 0, + } +}; + +struct mm_region *mem_map = sm8150_mem_map; diff --git a/board/qualcomm/sa8155p-adp/Kconfig b/board/qualcomm/sa8155p-adp/Kconfig new file mode 100644 index 0000000000..420d594e35 --- /dev/null +++ b/board/qualcomm/sa8155p-adp/Kconfig @@ -0,0 +1,12 @@ +if TARGET_SA8155P_ADP + +config SYS_BOARD + default "sa8155p_adp" + +config SYS_CONFIG_NAME + default "sa8155p_adp" + +config SYS_VENDOR + default "qualcomm" + +endif diff --git a/board/qualcomm/sa8155p-adp/MAINTAINERS b/board/qualcomm/sa8155p-adp/MAINTAINERS new file mode 100644 index 0000000000..28edd643da --- /dev/null +++ b/board/qualcomm/sa8155p-adp/MAINTAINERS @@ -0,0 +1,6 @@ +Qualcomm Robotics RB3 Development Platform (dragonboard845c) +M: Volodymyr Babchuk volodymyr_babchuk@epam.com +S: Maintained +F: board/qualcomm/sa8155p-adp/ +F: include/configs/sa8155p-adp.h +F: configs/sa8155p-adp_defconfig diff --git a/configs/sa8155p_adp_defconfig b/configs/sa8155p_adp_defconfig new file mode 100644 index 0000000000..40f275b2cb --- /dev/null +++ b/configs/sa8155p_adp_defconfig @@ -0,0 +1,33 @@ +CONFIG_ARM=y +CONFIG_SKIP_LOWLEVEL_INIT=y +CONFIG_COUNTER_FREQUENCY=19000000 +CONFIG_POSITION_INDEPENDENT=y +CONFIG_ENABLE_ARM_SOC_BOOT0_HOOK=y +CONFIG_ARCH_SNAPDRAGON=y +CONFIG_TEXT_BASE=0x85710000 +CONFIG_DEFAULT_DEVICE_TREE="sa8155p-adp" +CONFIG_TARGET_SA8155P_ADP=y +CONFIG_IDENT_STRING="\nQualcomm SA8155P-ADP" +CONFIG_SYS_LOAD_ADDR=0x85710000 +CONFIG_BOOTDELAY=3 +CONFIG_SYS_CBSIZE=512 +# CONFIG_DISPLAY_CPUINFO is not set +CONFIG_HUSH_PARSER=y +CONFIG_NET_RANDOM_ETHADDR=y +CONFIG_CLK=y +CONFIG_MSM_GPIO=y +CONFIG_QCOM_PMIC_GPIO=y +CONFIG_PHY_MICREL=y +CONFIG_PHY_MICREL_KSZ90X1=y +CONFIG_DM_MDIO=y +CONFIG_DM_ETH_PHY=y +CONFIG_DWC_ETH_QOS=y +CONFIG_DWC_ETH_QOS_QCOM=y +CONFIG_PHY=y +CONFIG_PINCTRL=y +CONFIG_PINCONF=y +CONFIG_PINCTRL_QCOM_SM8150=y +CONFIG_POWER_DOMAIN=y +CONFIG_MSM_GENI_SERIAL=y +CONFIG_SPMI_MSM=y +CONFIG_LMB_MAX_REGIONS=64 diff --git a/doc/board/qualcomm/index.rst b/doc/board/qualcomm/index.rst index 0f9c429956..05195de905 100644 --- a/doc/board/qualcomm/index.rst +++ b/doc/board/qualcomm/index.rst @@ -9,3 +9,4 @@ Qualcomm dragonboard410c sdm845 qcs404 + sa8155p-adp diff --git a/doc/board/qualcomm/sa8155p-adp.rst b/doc/board/qualcomm/sa8155p-adp.rst new file mode 100644 index 0000000000..cff68cd55f --- /dev/null +++ b/doc/board/qualcomm/sa8155p-adp.rst @@ -0,0 +1,94 @@ +.. SPDX-License-Identifier: BSD-3-Clause +.. sectionauthor:: Volodymyr Babchuk volodymyr_babchuk@epam.com + +SA8155P Automotive Development Platform +======================================= + +About +----- +This document describes the information about SA8155P Automotive +Development Platform aka SA8155P-ADP. + +Currently U-Boot can be booted either as Android boot image, or in EL2 +mode, instead of hypervisor image. In the latter case it is possible +to use U-Boot to either boot Linux with KVM support or to boot Xen +Hypervisor on this board. + +Supported HW modules +^^^^^^^^^^^^^^^^^^^^ +Port for this board is in early development state. Right now U-Boot +supports serial console and networking. No USB/fastboot or UFS support +yet. So it is not possible to save environment variables as +well. Nevertheless this is enough for development as user can download +all required images via TFTP. + +Installation +------------ +Build +^^^^^ +Setup ``CROSS_COMPILE`` for aarch64 and build U-Boot for your board:: + + $ export CROSS_COMPILE=<aarch64 toolchain prefix> + $ make sa8155p_adp_defconfig + $ make + +This will build ``u-boot.bin`` in the configured output directory. + +Boot in EL1 mode instead of Android boot image +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +Create a dummy ramdisk image::: + + $ echo "This is not a ramdisk" > ramdisk.img + +Compress u-boot binary::: + + $ gzip -c u-boot.bin > u-boot.bin.gz + +Append DTB again (binary we use already have DTB embedded in, but +Android boot image format requires another DTB at the end of the +archive)::: + + $ cat u-boot.bin.gz u-boot.dtb > u-boot.bin.gz-dtb + +Now we've got everything to build android boot image::: + + $ mkbootimg --kernel u-boot.bin.gz-dtb \ + --ramdisk ramdisk.img --pagesize 4096 \ + --base 0x80000000 -o boot.img + +Finally you can flash new boot image with fastboot::: + + $ fastboot flash boot boot.img + +Or just boot U-Boot without flashing anything::: + + $ fastboot boot boot.img + +Boot in EL2 mode instead of Qualcomm's hypervisor stub +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +This approach ensures that U-Boot is booted in EL2 and it is possible +to run virtualization software (like Xen or KVM) on the board. You +must understand that this approach breaks Qualcomm's boot chain. You +will not be able to call all subsequent loaders, so you will not be +able to use fastboot for example. Use this approach only if you want +to experiment with virtualization on SA8155P-ADP. + +We need to create ELF file from the u-boot binary. We can't use +existing U-Boot ELF, because it does not include appended DTB +file. Easiest way to do this is to use ``create_elf.py`` from the +following repository: `qtestsign(lorc) +https://github.com/lorc/qtestsign/tree/create_elf`_: :: + + $ python ../qtestsign/create_elf.py u-boot.bin 0x85710000 u-boot.mbn + +Next, this new binary should be signed with test keys: :: + + $ ../qtestsign/qtestsign.py -v6 hyp u-boot.mbn + +Resulting ``u-boot-test-signed.mbn`` then can be written to the +board. Easiest way is to use ``edl`` tool: :: + + $ ../edl/edl w hyp_a u-boot-test-signed.mbn --memory=ufs --lun=4 + +Be sure to backup existing hyp_a loader before flashing U-Boot diff --git a/include/configs/sa8155p_adp.h b/include/configs/sa8155p_adp.h new file mode 100644 index 0000000000..e986646334 --- /dev/null +++ b/include/configs/sa8155p_adp.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: BSD-3-Clause */ +/* + * Configuration file for SA8155P Automotive development platform, + * based on Qualcomm SA8155P chip + * + * Volodymyr Babchuk volodymyr_babchuk@epam.com + * Copyright (c) 2024 EPAM Systems. + */ + +#ifndef __CONFIGS_SA8155P_ADP_H +#define __CONFIGS_SA8155P_ADP_H + +#include <linux/sizes.h> + +#define CFG_SYS_BAUDRATE_TABLE { 115200, 230400, 460800, 921600 } + +#define CFG_EXTRA_ENV_SETTINGS \ + "bootm_size=0x10000000\0" \ + "bootm_low=0xA0000000\0" \ + "bootm_mapsize=0x39900000\0" \ + "kernel_comp_add_r=0xB0000000\0" \ + "kernel_comp_size=0x01000000\0" \ + "" \ + +#endif