1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Common part of configuration settings for the AT91 SAMA5 board. 4 * 5 * Copyright (C) 2015 Atmel Corporation 6 * Josh Wu <josh.wu@atmel.com> 7 */ 8 9 #ifndef __AT91_SAMA5_COMMON_H 10 #define __AT91_SAMA5_COMMON_H 11 12 /* ARM asynchronous clock */ 13 #define CONFIG_SYS_AT91_SLOW_CLOCK 32768 14 #define CONFIG_SYS_AT91_MAIN_CLOCK 12000000 /* from 12 MHz crystal */ 15 16 #define CONFIG_ARCH_CPU_INIT 17 18 #ifndef CONFIG_SPL_BUILD 19 #define CONFIG_SKIP_LOWLEVEL_INIT 20 #endif 21 22 /* general purpose I/O */ 23 #ifndef CONFIG_DM_GPIO 24 #define CONFIG_AT91_GPIO 25 #endif 26 27 28 /* 29 * BOOTP options 30 */ 31 #define CONFIG_BOOTP_BOOTFILESIZE 32 33 /* 34 * Command line configuration. 35 */ 36 37 #ifdef CONFIG_SD_BOOT 38 39 #ifdef CONFIG_ENV_IS_IN_MMC 40 /* Use raw reserved sectors to save environment */ 41 #define CONFIG_ENV_OFFSET 0x2000 42 #define CONFIG_ENV_SIZE 0x1000 43 #define CONFIG_SYS_MMC_ENV_DEV 0 44 #else 45 /* u-boot env in sd/mmc card */ 46 #define CONFIG_ENV_SIZE 0x4000 47 #endif 48 49 #define CONFIG_BOOTCOMMAND "if test ! -n ${dtb_name}; then " \ 50 "setenv dtb_name at91-${board_name}.dtb; " \ 51 "fi; " \ 52 "fatload mmc 0:1 0x21000000 ${dtb_name}; " \ 53 "fatload mmc 0:1 0x22000000 zImage; " \ 54 "bootz 0x22000000 - 0x21000000" 55 56 #else 57 58 #ifdef CONFIG_NAND_BOOT 59 /* u-boot env in nand flash */ 60 #define CONFIG_ENV_OFFSET 0x140000 61 #define CONFIG_ENV_OFFSET_REDUND 0x100000 62 #define CONFIG_ENV_SIZE 0x20000 63 #define CONFIG_BOOTCOMMAND "nand read 0x21000000 0x180000 0x80000;" \ 64 "nand read 0x22000000 0x200000 0x600000;" \ 65 "bootz 0x22000000 - 0x21000000" 66 #elif CONFIG_SPI_BOOT 67 /* u-boot env in serial flash, by default is bus 0 and cs 0 */ 68 #define CONFIG_ENV_OFFSET 0x6000 69 #define CONFIG_ENV_SIZE 0x2000 70 #define CONFIG_ENV_SECT_SIZE 0x1000 71 #define CONFIG_BOOTCOMMAND "sf probe 0; " \ 72 "sf read 0x21000000 0x60000 0xc000; " \ 73 "sf read 0x22000000 0x6c000 0x394000; " \ 74 "bootz 0x22000000 - 0x21000000" 75 #endif 76 77 #endif 78 79 /* Size of malloc() pool */ 80 #define CONFIG_SYS_MALLOC_LEN (4 * 1024 * 1024) 81 82 #endif 83