From: Suman Anna s-anna@ti.com
Add basic support for AM62 SK. This has 2GB DDR. Note that stack for R5 SPL is in OCRAM @ 0x7000ffff so that is away from BSS and does not step on BSS section
Add only the bare minimum required to support UART and SD.
Signed-off-by: Suman Anna s-anna@ti.com Signed-off-by: Aswath Govindraju a-govindraju@ti.com Signed-off-by: Nishanth Menon nm@ti.com Signed-off-by: Vignesh Raghavendra vigneshr@ti.com --- arch/arm/mach-k3/Kconfig | 1 + board/ti/am62x/Kconfig | 59 ++++++++++++++++++++++++++++++++++++++++ board/ti/am62x/Makefile | 8 ++++++ board/ti/am62x/evm.c | 39 ++++++++++++++++++++++++++ 4 files changed, 107 insertions(+) create mode 100644 board/ti/am62x/Kconfig create mode 100644 board/ti/am62x/Makefile create mode 100644 board/ti/am62x/evm.c
diff --git a/arch/arm/mach-k3/Kconfig b/arch/arm/mach-k3/Kconfig index 0dc4f44fdd..57f693e9a1 100644 --- a/arch/arm/mach-k3/Kconfig +++ b/arch/arm/mach-k3/Kconfig @@ -178,6 +178,7 @@ config K3_DM_FW
source "board/ti/am65x/Kconfig" source "board/ti/am64x/Kconfig" +source "board/ti/am62x/Kconfig" source "board/ti/j721e/Kconfig" source "board/siemens/iot2050/Kconfig" source "board/ti/j721s2/Kconfig" diff --git a/board/ti/am62x/Kconfig b/board/ti/am62x/Kconfig new file mode 100644 index 0000000000..87fed44df1 --- /dev/null +++ b/board/ti/am62x/Kconfig @@ -0,0 +1,59 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright (C) 2020-2022 Texas Instruments Incorporated - https://www.ti.com/ +# Suman Anna s-anna@ti.com + +choice + prompt "TI K3 AM62x based boards" + optional + +config TARGET_AM625_A53_EVM + bool "TI K3 based AM625 EVM running on A53" + select ARM64 + select SOC_K3_AM625 + +config TARGET_AM625_R5_EVM + bool "TI K3 based AM625 EVM running on R5" + select CPU_V7R + select SYS_THUMB_BUILD + select K3_LOAD_SYSFW + select SOC_K3_AM625 + select RAM + select SPL_RAM + select K3_DDRSS + imply SYS_K3_SPL_ATF + +endchoice + +if TARGET_AM625_A53_EVM + +config SYS_BOARD + default "am62x" + +config SYS_VENDOR + default "ti" + +config SYS_CONFIG_NAME + default "am62x_evm" + +source "board/ti/common/Kconfig" + +endif + +if TARGET_AM625_R5_EVM + +config SYS_BOARD + default "am62x" + +config SYS_VENDOR + default "ti" + +config SYS_CONFIG_NAME + default "am62x_evm" + +config SPL_LDSCRIPT + default "arch/arm/mach-omap2/u-boot-spl.lds" + +source "board/ti/common/Kconfig" + +endif diff --git a/board/ti/am62x/Makefile b/board/ti/am62x/Makefile new file mode 100644 index 0000000000..f4c35edffa --- /dev/null +++ b/board/ti/am62x/Makefile @@ -0,0 +1,8 @@ +# +# Copyright (C) 2020-2022 Texas Instruments Incorporated - https://www.ti.com/ +# Suman Anna s-anna@ti.com +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y += evm.o diff --git a/board/ti/am62x/evm.c b/board/ti/am62x/evm.c new file mode 100644 index 0000000000..4dd5e64299 --- /dev/null +++ b/board/ti/am62x/evm.c @@ -0,0 +1,39 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Board specific initialization for AM62x platforms + * + * Copyright (C) 2020-2022 Texas Instruments Incorporated - https://www.ti.com/ + * Suman Anna s-anna@ti.com + * + */ + +#include <asm/io.h> +#include <spl.h> +#include <fdt_support.h> +#include <asm/arch/hardware.h> +#include <asm/arch/sys_proto.h> +#include <env.h> + +DECLARE_GLOBAL_DATA_PTR; + +int board_init(void) +{ + return 0; +} + +int dram_init(void) +{ + gd->ram_size = 0x80000000; + + return 0; +} + +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; + gd->ram_size = 0x80000000; + + return 0; +}