Add initial support for AM654 based EVM running on A53. Enable 4GB of DDR available on the EVM so that kernel DTB file can be updated accordingly.
Reviewed-by: Tom Rini trini@konsulko.com Signed-off-by: Lokesh Vutla lokeshvutla@ti.com [Andreas: Added 4GB ddr support] Signed-off-by: Andreas Dannenberg dannenberg@ti.com --- arch/arm/mach-k3/Kconfig | 1 + board/ti/am65x/Kconfig | 28 +++++++ board/ti/am65x/MAINTAINERS | 5 ++ board/ti/am65x/Makefile | 8 ++ board/ti/am65x/README | 141 ++++++++++++++++++++++++++++++++++++ board/ti/am65x/evm.c | 56 ++++++++++++++ include/configs/am65x_evm.h | 34 +++++++++ 7 files changed, 273 insertions(+) create mode 100644 board/ti/am65x/Kconfig create mode 100644 board/ti/am65x/MAINTAINERS create mode 100644 board/ti/am65x/Makefile create mode 100644 board/ti/am65x/README create mode 100644 board/ti/am65x/evm.c create mode 100644 include/configs/am65x_evm.h
diff --git a/arch/arm/mach-k3/Kconfig b/arch/arm/mach-k3/Kconfig index 1380013fe7..2df6197af7 100644 --- a/arch/arm/mach-k3/Kconfig +++ b/arch/arm/mach-k3/Kconfig @@ -47,4 +47,5 @@ config SYS_K3_BOOT_PARAM_TABLE_INDEX Address at which ROM stores the value which determines if SPL is booted up by primary boot media or secondary boot media.
+source "board/ti/am65x/Kconfig" endif diff --git a/board/ti/am65x/Kconfig b/board/ti/am65x/Kconfig new file mode 100644 index 0000000000..591600483e --- /dev/null +++ b/board/ti/am65x/Kconfig @@ -0,0 +1,28 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/ +# Lokesh Vutla lokeshvutla@ti.com + +choice + prompt "K3 AM65 based boards" + optional + +config TARGET_AM654_A53_EVM + bool "TI K3 based AM654 EVM running on A53" + select ARM64 + select SOC_K3_AM6 + +endchoice + +if TARGET_AM654_A53_EVM + +config SYS_BOARD + default "am65x" + +config SYS_VENDOR + default "ti" + +config SYS_CONFIG_NAME + default "am65x_evm" + +endif diff --git a/board/ti/am65x/MAINTAINERS b/board/ti/am65x/MAINTAINERS new file mode 100644 index 0000000000..c5921b4a28 --- /dev/null +++ b/board/ti/am65x/MAINTAINERS @@ -0,0 +1,5 @@ +AM65x BOARD +M: Lokesh Vutla lokeshvutla@ti.com +S: Maintained +F: board/ti/am65x/ +F: include/configs/am65x_evm.h diff --git a/board/ti/am65x/Makefile b/board/ti/am65x/Makefile new file mode 100644 index 0000000000..94dddfcc4a --- /dev/null +++ b/board/ti/am65x/Makefile @@ -0,0 +1,8 @@ +# +# Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/ +# Lokesh Vutla lokeshvutla@ti.com +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y := evm.o diff --git a/board/ti/am65x/README b/board/ti/am65x/README new file mode 100644 index 0000000000..e7f4ff6578 --- /dev/null +++ b/board/ti/am65x/README @@ -0,0 +1,141 @@ +Introduction: +------------- +The AM65x family of SoCs is the first device family from K3 Multicore +SoC architecture, targeted for broad market and industrial control with +aim to meet the complex processing needs of modern embedded products. + +The device is built over three domains, each containing specific processing +cores, voltage domains and peripherals: +1. Wake-up (WKUP) domain: + - Device Management and Security Controller (DMSC) +2. Microcontroller (MCU) domain: + - Dual Core ARM Cortex-R5F processor +3. MAIN domain: + - Quad core 64-bit ARM Cortex-A53 + +More info can be found in TRM: http://www.ti.com/lit/pdf/spruid7 + +Boot Flow: +---------- +On AM65x family devices, ROM supports boot only via MCU(R5). This means that +bootloader has to run on R5 core. In order to meet this constraint, and for +the following reasons the boot flow is designed as mentioned: +1. Need to move away from R5 asap, so that we want to start *any* +firmware on the r5 cores like.... autosar can be loaded to receive CAN +response and other safety operations to be started. This operation is +very time critical and is applicable for all automotive use cases. +2. U-Boot on A53 should start other remotecores for various +applications. This should happen before running Linux. +3. In production boot flow, we might not like to use full u-boot, +instead use Flacon boot flow to reduce boot time. + ++------------------------------------------------------------------------+ +| DMSC | R5 | A53 | ++------------------------------------------------------------------------+ +| +--------+ | | | +| | Reset | | | | +| +--------+ | | | +| : | | | +| +--------+ | +-----------+ | | +| | *rom* |----------|-->| Reset rls | | | +| +--------+ | +-----------+ | | +| | | | : | | +| | rom | | : | | +| |services| | : | | +| | | | +-------------+ | | +| | | | | *R5 rom* | | | +| | | | +-------------+ | | +| | |<---------|---|Load and auth| | | +| | | | | tiboot3.bin | | | +| | | | +-------------+ | | +| | | | : | | +| | | | : | | +| | | | : | | +| | | | +-------------+ | | +| | Start | | | *R5 SPL* | | | +| | System | | +-------------+ | | +| |Firmware|<---------|---|Load and auth| | | +| +--------+ | | sysfw bin | | | +| : | +-------------+ | | +| +---------+ | | DDR | | | +| | *SYSFW* | | | config | | | +| +---------+ | +-------------+ | | +| | |<--------|---| Load | | | +| | | | | tispl.bin | | | +| | | | +-------------+ | | +| | |<--------|---| Start A53 | | | +| | | | | and Reset | | | +| | | | +-------------+ | | +| | | | | +-----------+ | +| | |---------|-----------------------|---->| Reset rls | | +| | | | | +-----------+ | +| | DMSC | | | : | +| |Services | | | +-----------+ | +| | |<--------|-----------------------|---->|*ATF/OPTEE*| | +| | | | | +-----------+ | +| | | | | : | +| | | | | +-----------+ | +| | |<--------|-----------------------|---->| *A53 SPL* | | +| | | | | +-----------+ | +| | | | | | Load | | +| | | | | | u-boot.img| | +| | | | | +-----------+ | +| | | | | : | +| | | | | +-----------+ | +| | |<--------|-----------------------|---->| *u-boot* | | +| | | | | +-----------+ | +| | | | | | prompt | | +| | | | | +-----------+ | +| +---------+ | | | +| | | | ++------------------------------------------------------------------------+ + +- Here DMSC acts as master and provides all the critical services. R5/A53 +requests DMSC to get these services done as shown in the above diagram. + +Sources: +-------- +1. SYSFW: + System Firmware repo is closed source and the binaries are delivered + to users with NDA. Please contact TI to get the System Firmware + Binary named ti-sci-firmware-am6x.bin that runs on AM65x SoC. + +2. ATF: + Tree: https://github.com/ARM-software/arm-trusted-firmware.git + Branch: master + +3. OPTEE: + Tree: https://github.com/OP-TEE/optee_os.git + Branch: master + +4. U-Boot: + Tree: http://git.denx.de/u-boot.git + Branch: master + +Build procedure: +---------------- +1. SYSFW: + ROM expects a signed binary that contains the X509 certificate. So +the binary ti-sci-firmware-am6x.bin cannot be uses as-is and needs to be signed. +Contact TI on the procedure to sign the system firmware binary. + +2. ATF: +$ make CROSS_COMPILE=aarch64-linux-gnu- ARCH=aarch64 PLAT=k3 TARGET_BOARD=generic SPD=opteed + +3. OPTEE: +$ make PLATFORM=k3-am65x CFG_ARM64_core=y + +4. U-Boot: + +4.1. R5: + TBD. + +4.2. A53: +$ make ARCH=arm CROSS_COMPILE=aarch64-linux-gnu- am65x_evm_a53_defconfig O=/tmp/a53 +$ make ARCH=arm CROSS_COMPILE=aarch64-linux-gnu- ATF=<path to ATF dir>/build/k3/generic/release/bl31.bin TEE=<path to OPTEE OS dir>/out/arm-plat-k3/core/tee-pager.bin O=/tmp/a53 + +Target Images +-------------- +Copy the below images to an SD card and boot: +- tiboot3.bin from step 4.1 +- tispl.bin, u-boot.img from 4.2 diff --git a/board/ti/am65x/evm.c b/board/ti/am65x/evm.c new file mode 100644 index 0000000000..cb54d97551 --- /dev/null +++ b/board/ti/am65x/evm.c @@ -0,0 +1,56 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Board specific initialization for AM654 EVM + * + * Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/ + * Lokesh Vutla lokeshvutla@ti.com + * + */ + +#include <common.h> +#include <asm/io.h> +#include <spl.h> + +DECLARE_GLOBAL_DATA_PTR; + +int board_init(void) +{ + return 0; +} + +int dram_init(void) +{ +#ifdef CONFIG_PHYS_64BIT + gd->ram_size = 0x100000000; +#else + gd->ram_size = 0x80000000; +#endif + + return 0; +} + +ulong board_get_usable_ram_top(ulong total_size) +{ +#ifdef CONFIG_PHYS_64BIT + /* Limit RAM used by U-Boot to the DDR low region */ + if (gd->ram_top > 0x100000000) + return 0x100000000; +#endif + + return gd->ram_top; +} + +int dram_init_banksize(void) +{ + /* Bank 0 declares the memory available in the DDR low region */ + gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; + gd->bd->bi_dram[0].size = 0x80000000; + +#ifdef CONFIG_PHYS_64BIT + /* Bank 1 declares the memory available in the DDR high region */ + gd->bd->bi_dram[1].start = CONFIG_SYS_SDRAM_BASE1; + gd->bd->bi_dram[1].size = 0x80000000; +#endif + + return 0; +} diff --git a/include/configs/am65x_evm.h b/include/configs/am65x_evm.h new file mode 100644 index 0000000000..90dd9f3721 --- /dev/null +++ b/include/configs/am65x_evm.h @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Configuration header file for K3 AM654 EVM + * + * Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/ + * Lokesh Vutla lokeshvutla@ti.com + */ + +#ifndef __CONFIG_AM654_EVM_H +#define __CONFIG_AM654_EVM_H + +#include <linux/sizes.h> +#include <config_distro_bootcmd.h> + +#define CONFIG_ENV_SIZE (128 << 10) + +/* DDR Configuration */ +#define CONFIG_SYS_SDRAM_BASE1 0x880000000 + +/* SPL Loader Configuration */ +#ifdef CONFIG_TARGET_AM654_A53_EVM +#define CONFIG_SPL_TEXT_BASE 0x80080000 +#endif + +#define CONFIG_SKIP_LOWLEVEL_INIT + +#define CONFIG_SPL_MAX_SIZE CONFIG_SYS_K3_MAX_DOWNLODABLE_IMAGE_SIZE +#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SPL_TEXT_BASE + \ + CONFIG_SYS_K3_NON_SECURE_MSRAM_SIZE - 4) + +/* Now for the remaining common defines */ +#include <configs/ti_armv7_common.h> + +#endif /* __CONFIG_AM654_EVM_H */