1 /* 2 * Common part of configuration settings for the AT91 SAMA5 board. 3 * 4 * Copyright (C) 2015 Atmel Corporation 5 * Josh Wu <josh.wu@atmel.com> 6 * 7 * SPDX-License-Identifier: GPL-2.0+ 8 */ 9 10 #ifndef __AT91_SAMA5_COMMON_H 11 #define __AT91_SAMA5_COMMON_H 12 13 /* ARM asynchronous clock */ 14 #define CONFIG_SYS_AT91_SLOW_CLOCK 32768 15 #define CONFIG_SYS_AT91_MAIN_CLOCK 12000000 /* from 12 MHz crystal */ 16 17 #define CONFIG_ARCH_CPU_INIT 18 19 #ifndef CONFIG_SPL_BUILD 20 #define CONFIG_SKIP_LOWLEVEL_INIT 21 #endif 22 23 /* general purpose I/O */ 24 #ifndef CONFIG_DM_GPIO 25 #define CONFIG_AT91_GPIO 26 #endif 27 28 29 /* 30 * BOOTP options 31 */ 32 #define CONFIG_BOOTP_BOOTFILESIZE 33 34 /* 35 * Command line configuration. 36 */ 37 38 #ifdef CONFIG_SD_BOOT 39 40 #ifdef CONFIG_ENV_IS_IN_MMC 41 /* Use raw reserved sectors to save environment */ 42 #define CONFIG_ENV_OFFSET 0x2000 43 #define CONFIG_ENV_SIZE 0x1000 44 #define CONFIG_SYS_MMC_ENV_DEV 0 45 #else 46 /* u-boot env in sd/mmc card */ 47 #define CONFIG_ENV_SIZE 0x4000 48 #endif 49 50 #define CONFIG_BOOTCOMMAND "if test ! -n ${dtb_name}; then " \ 51 "setenv dtb_name at91-${board_name}.dtb; " \ 52 "fi; " \ 53 "fatload mmc 0:1 0x21000000 ${dtb_name}; " \ 54 "fatload mmc 0:1 0x22000000 zImage; " \ 55 "bootz 0x22000000 - 0x21000000" 56 57 #else 58 59 #ifdef CONFIG_NAND_BOOT 60 /* u-boot env in nand flash */ 61 #define CONFIG_ENV_OFFSET 0xc0000 62 #define CONFIG_ENV_OFFSET_REDUND 0x100000 63 #define CONFIG_ENV_SIZE 0x20000 64 #define CONFIG_BOOTCOMMAND "nand read 0x21000000 0x180000 0x80000;" \ 65 "nand read 0x22000000 0x200000 0x600000;" \ 66 "bootz 0x22000000 - 0x21000000" 67 #elif CONFIG_SPI_BOOT 68 /* u-boot env in serial flash, by default is bus 0 and cs 0 */ 69 #define CONFIG_ENV_OFFSET 0x6000 70 #define CONFIG_ENV_SIZE 0x2000 71 #define CONFIG_ENV_SECT_SIZE 0x1000 72 #define CONFIG_BOOTCOMMAND "sf probe 0; " \ 73 "sf read 0x21000000 0x60000 0xc000; " \ 74 "sf read 0x22000000 0x6c000 0x394000; " \ 75 "bootz 0x22000000 - 0x21000000" 76 #endif 77 78 #endif 79 80 /* Size of malloc() pool */ 81 #define CONFIG_SYS_MALLOC_LEN (4 * 1024 * 1024) 82 83 #endif 84