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.
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 | 30 ++++++++++++++++++++ board/ti/am65x/MAINTAINERS | 5 ++++ board/ti/am65x/Makefile | 8 ++++++ board/ti/am65x/evm.c | 56 +++++++++++++++++++++++++++++++++++++ include/configs/am65x_evm.h | 36 ++++++++++++++++++++++++ 6 files changed, 136 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/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 117e5b4e4a..df3ba32df6 100644 --- a/arch/arm/mach-k3/Kconfig +++ b/arch/arm/mach-k3/Kconfig @@ -47,4 +47,5 @@ config 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..fb616e8fd5 --- /dev/null +++ b/board/ti/am65x/Kconfig @@ -0,0 +1,30 @@ +# +# Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/ +# Lokesh Vutla lokeshvutla@ti.com +# +# SPDX-License-Identifier: GPL-2.0+ +# + +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/evm.c b/board/ti/am65x/evm.c new file mode 100644 index 0000000000..db2c90e948 --- /dev/null +++ b/board/ti/am65x/evm.c @@ -0,0 +1,56 @@ +/* + * Board specific initialization for AM654 EVM + * + * Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/ + * Lokesh Vutla lokeshvutla@ti.com + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#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..ee8a984cfc --- /dev/null +++ b/include/configs/am65x_evm.h @@ -0,0 +1,36 @@ +/* + * Configuration header file for K3 AM654 EVM + * + * Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/ + * Lokesh Vutla lokeshvutla@ti.com + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#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_NR_DRAM_BANKS 2 +#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_MAX_DOWNLODABLE_IMAGE_SIZE +#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SPL_TEXT_BASE + \ + CONFIG_NON_SECURE_MSRAM_SIZE - 4) + +/* Now for the remaining common defines */ +#include <configs/ti_armv7_common.h> + +#endif /* __CONFIG_AM654_EVM_H */