1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * (C) Copyright 2007-2008 4 * Stelian Pop <stelian@popies.net> 5 * Lead Tech Design <www.leadtechdesign.com> 6 * 7 * Configuation settings for the AT91SAM9260EK & AT91SAM9G20EK boards. 8 */ 9 10 #ifndef __CONFIG_H 11 #define __CONFIG_H 12 13 /* 14 * SoC must be defined first, before hardware.h is included. 15 * In this case SoC is defined in boards.cfg. 16 */ 17 #include <asm/hardware.h> 18 19 /* 20 * Warning: changing CONFIG_SYS_TEXT_BASE requires 21 * adapting the initial boot program. 22 * Since the linker has to swallow that define, we must use a pure 23 * hex number here! 24 */ 25 26 /* ARM asynchronous clock */ 27 #define CONFIG_SYS_AT91_SLOW_CLOCK 32768 /* slow clock xtal */ 28 #define CONFIG_SYS_AT91_MAIN_CLOCK 18432000 /* main clock xtal */ 29 30 /* Define actual evaluation board type from used processor type */ 31 #ifdef CONFIG_AT91SAM9G20 32 # define CONFIG_AT91SAM9G20EK /* It's an Atmel AT91SAM9G20 EK */ 33 #else 34 # define CONFIG_AT91SAM9260EK /* It's an Atmel AT91SAM9260 EK */ 35 #endif 36 37 /* Misc CPU related */ 38 #define CONFIG_CMDLINE_TAG /* enable passing of ATAGs */ 39 #define CONFIG_SETUP_MEMORY_TAGS 40 #define CONFIG_INITRD_TAG 41 #define CONFIG_SKIP_LOWLEVEL_INIT 42 43 /* general purpose I/O */ 44 #define CONFIG_ATMEL_LEGACY /* required until (g)pio is fixed */ 45 46 /* 47 * BOOTP options 48 */ 49 #define CONFIG_BOOTP_BOOTFILESIZE 1 50 51 /* 52 * SDRAM: 1 bank, min 32, max 128 MB 53 * Initialized before u-boot gets started. 54 */ 55 #define CONFIG_SYS_SDRAM_BASE ATMEL_BASE_CS1 56 #define CONFIG_SYS_SDRAM_SIZE 0x04000000 57 58 /* 59 * Initial stack pointer: 4k - GENERATED_GBL_DATA_SIZE in internal SRAM, 60 * leaving the correct space for initial global data structure above 61 * that address while providing maximum stack area below. 62 */ 63 #ifdef CONFIG_AT91SAM9XE 64 # define CONFIG_SYS_INIT_SP_ADDR \ 65 (ATMEL_BASE_SRAM + 16 * 1024 - GENERATED_GBL_DATA_SIZE) 66 #else 67 # define CONFIG_SYS_INIT_SP_ADDR \ 68 (ATMEL_BASE_SRAM1 + 16 * 1024 - GENERATED_GBL_DATA_SIZE) 69 #endif 70 71 /* 72 * The (arm)linux board id set by generic code depending on configured board 73 * (see boards.cfg for different boards) 74 */ 75 #ifdef CONFIG_AT91SAM9G20 76 /* the sam9g20 variants have two different board ids */ 77 # ifdef CONFIG_AT91SAM9G20EK_2MMC 78 /* we may be setup for the 2MMC variant of at91sam9g20ek */ 79 # define CONFIG_MACH_TYPE MACH_TYPE_AT91SAM9G20EK_2MMC 80 # else 81 /* or the normal at91sam9g20ek */ 82 # define CONFIG_MACH_TYPE MACH_TYPE_AT91SAM9G20EK 83 # endif 84 #else 85 /* otherwise default to good old at91sam9260ek */ 86 # define CONFIG_MACH_TYPE MACH_TYPE_AT91SAM9260EK 87 #endif 88 89 /* NAND flash */ 90 #ifdef CONFIG_CMD_NAND 91 #define CONFIG_SYS_MAX_NAND_DEVICE 1 92 #define CONFIG_SYS_NAND_BASE ATMEL_BASE_CS3 93 #define CONFIG_SYS_NAND_DBW_8 94 #define CONFIG_SYS_NAND_MASK_ALE (1 << 21) 95 #define CONFIG_SYS_NAND_MASK_CLE (1 << 22) 96 #define CONFIG_SYS_NAND_ENABLE_PIN AT91_PIN_PC14 97 #define CONFIG_SYS_NAND_READY_PIN AT91_PIN_PC13 98 #endif 99 100 /* USB */ 101 #define CONFIG_USB_ATMEL 102 #define CONFIG_USB_ATMEL_CLK_SEL_PLLB 103 #define CONFIG_USB_OHCI_NEW 1 104 #define CONFIG_SYS_USB_OHCI_CPU_INIT 1 105 #define CONFIG_SYS_USB_OHCI_REGS_BASE 0x00500000 /* AT91SAM9260_UHP_BASE */ 106 #define CONFIG_SYS_USB_OHCI_SLOT_NAME "at91sam9260" 107 #define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS 2 108 109 #define CONFIG_SYS_LOAD_ADDR 0x22000000 /* load address */ 110 111 #ifdef CONFIG_SYS_USE_DATAFLASH_CS0 112 113 /* bootstrap + u-boot + env + linux in dataflash on CS0 */ 114 #define CONFIG_BOOTCOMMAND "sf probe 0:0; " \ 115 "sf read 0x22000000 0x84000 0x294000; " \ 116 "bootm 0x22000000" 117 118 #elif CONFIG_SYS_USE_DATAFLASH_CS1 119 120 #define CONFIG_BOOTCOMMAND "sf probe 0:1; " \ 121 "sf read 0x22000000 0x84000 0x294000; " \ 122 "bootm 0x22000000" 123 124 #elif defined(CONFIG_SYS_USE_NANDFLASH) 125 126 /* bootstrap + u-boot + env + linux in nandflash */ 127 #define CONFIG_BOOTCOMMAND "nand read 0x22000000 0x200000 0x300000; bootm" 128 129 #else /* CONFIG_SYS_USE_MMC */ 130 /* bootstrap + u-boot + env + linux in mmc */ 131 /* For FAT system, most cases it should be in the reserved sector */ 132 133 #define CONFIG_BOOTCOMMAND \ 134 "fatload mmc 0:1 0x22000000 uImage; bootm" 135 #endif 136 137 /* 138 * Size of malloc() pool 139 */ 140 #define CONFIG_SYS_MALLOC_LEN ROUND(3 * CONFIG_ENV_SIZE + 128*1024, 0x1000) 141 142 #endif 143