| /* SPDX-License-Identifier: GPL-2.0+ */ | |
| /* | |
| * Copyright (C) 2018 Synopsys, Inc. All rights reserved. | |
| */ | |
| #ifndef _CONFIG_IOT_DEVKIT_H_ | |
| #define _CONFIG_IOT_DEVKIT_H_ | |
| #include <linux/sizes.h> | |
| /* | |
| * MEMORY MAP | |
| * | |
| * eFlash: 0x0000_0000 - 0x0008_0000 (512K) | |
| * ICCM: 0x2000_0000 - 0x2004_0000 (256K) | |
| * SRAM: 0x3000_0000 - 0x3002_0000 (128K) | |
| * DCCM: 0x8000_0000 - 0x8002_0000 (128K) | |
| * Note: only data goes here, as IFQ cannot fetch instructions from DCCM | |
| * | |
| * | |
| * RAM PARTITIONING | |
| * | |
| * +-----------+----------+---------------------+-------------+ | |
| * | <-- Stack | .data | Malloc | Environment | | |
| * +-----------+----------+---------------------+-------------+ | |
| * : : : :\___________/ | |
| * : : : : | | |
| * : : : : CONFIG_ENV_SIZE | |
| * : : \____________________/ | |
| * : : | | |
| * : : CONFIG_SYS_MALLOC_LEN | |
| * : : | |
| * : Specified explicitly by CONFIG_SYS_INIT_SP_ADDR | |
| * : | |
| * Specified explicitly by CONFIG_SYS_SDRAM_BASE | |
| * | |
| * NOTES: | |
| * - Stack starts from CONFIG_SYS_INIT_SP_ADDR and grows down, | |
| * i.e. towards CONFIG_SYS_SDRAM_BASE but nothing stops it from crossing | |
| * that CONFIG_SYS_SDRAM_BASE in which case data won't be really saved on | |
| * stack any longer and values popped from stack will contain garbage | |
| * leading to unexpected behavior, typically but not limited to: | |
| * - "Returning" back to bogus caller function | |
| * - Reading data from weird addresses | |
| */ | |
| #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE | |
| #define SRAM_BASE 0x30000000 | |
| #define SRAM_SIZE SZ_128K | |
| #define DCCM_BASE 0x80000000 | |
| #define DCCM_SIZE SZ_128K | |
| #define CONFIG_SYS_SDRAM_BASE DCCM_BASE | |
| #define CONFIG_SYS_SDRAM_SIZE DCCM_SIZE | |
| #define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + SZ_32K) | |
| #define CONFIG_SYS_MALLOC_LEN SZ_64K | |
| #define CONFIG_SYS_BOOTM_LEN SZ_128K | |
| #define CONFIG_SYS_LOAD_ADDR SRAM_BASE | |
| #define ROM_BASE CONFIG_SYS_MONITOR_BASE | |
| #define ROM_SIZE SZ_256K | |
| #define RAM_DATA_BASE CONFIG_SYS_INIT_SP_ADDR | |
| #define RAM_DATA_SIZE CONFIG_SYS_SDRAM_SIZE - \ | |
| (CONFIG_SYS_INIT_SP_ADDR - \ | |
| CONFIG_SYS_SDRAM_BASE) - \ | |
| CONFIG_SYS_MALLOC_LEN - \ | |
| CONFIG_ENV_SIZE | |
| /* | |
| * Environment | |
| */ | |
| #define CONFIG_BOOTFILE "app.bin" | |
| #define CONFIG_LOADADDR CONFIG_SYS_LOAD_ADDR | |
| #endif /* _CONFIG_IOT_DEVKIT_H_ */ |