1 /* 2 * (C) Copyright 2007-2008 3 * Stelian Pop <stelian@popies.net> 4 * Lead Tech Design <www.leadtechdesign.com> 5 * 6 * Configuation settings for the AT91SAM9260EK & AT91SAM9G20EK boards. 7 * 8 * SPDX-License-Identifier: GPL-2.0+ 9 */ 10 11 #ifndef __CONFIG_H 12 #define __CONFIG_H 13 14 /* 15 * SoC must be defined first, before hardware.h is included. 16 * In this case SoC is defined in boards.cfg. 17 */ 18 #include <asm/hardware.h> 19 20 /* 21 * Warning: changing CONFIG_SYS_TEXT_BASE requires 22 * adapting the initial boot program. 23 * Since the linker has to swallow that define, we must use a pure 24 * hex number here! 25 */ 26 27 /* ARM asynchronous clock */ 28 #define CONFIG_SYS_AT91_SLOW_CLOCK 32768 /* slow clock xtal */ 29 #define CONFIG_SYS_AT91_MAIN_CLOCK 18432000 /* main clock xtal */ 30 31 /* Define actual evaluation board type from used processor type */ 32 #ifdef CONFIG_AT91SAM9G20 33 # define CONFIG_AT91SAM9G20EK /* It's an Atmel AT91SAM9G20 EK */ 34 #else 35 # define CONFIG_AT91SAM9260EK /* It's an Atmel AT91SAM9260 EK */ 36 #endif 37 38 /* Misc CPU related */ 39 #define CONFIG_ARCH_CPU_INIT 40 #define CONFIG_CMDLINE_TAG /* enable passing of ATAGs */ 41 #define CONFIG_SETUP_MEMORY_TAGS 42 #define CONFIG_INITRD_TAG 43 #define CONFIG_SKIP_LOWLEVEL_INIT 44 45 /* general purpose I/O */ 46 #define CONFIG_ATMEL_LEGACY /* required until (g)pio is fixed */ 47 48 /* 49 * BOOTP options 50 */ 51 #define CONFIG_BOOTP_BOOTFILESIZE 1 52 53 /* 54 * SDRAM: 1 bank, min 32, max 128 MB 55 * Initialized before u-boot gets started. 56 */ 57 #define CONFIG_NR_DRAM_BANKS 1 58 #define CONFIG_SYS_SDRAM_BASE ATMEL_BASE_CS1 59 #define CONFIG_SYS_SDRAM_SIZE 0x04000000 60 61 /* 62 * Initial stack pointer: 4k - GENERATED_GBL_DATA_SIZE in internal SRAM, 63 * leaving the correct space for initial global data structure above 64 * that address while providing maximum stack area below. 65 */ 66 #ifdef CONFIG_AT91SAM9XE 67 # define CONFIG_SYS_INIT_SP_ADDR \ 68 (ATMEL_BASE_SRAM + 16 * 1024 - GENERATED_GBL_DATA_SIZE) 69 #else 70 # define CONFIG_SYS_INIT_SP_ADDR \ 71 (ATMEL_BASE_SRAM1 + 16 * 1024 - GENERATED_GBL_DATA_SIZE) 72 #endif 73 74 /* 75 * The (arm)linux board id set by generic code depending on configured board 76 * (see boards.cfg for different boards) 77 */ 78 #ifdef CONFIG_AT91SAM9G20 79 /* the sam9g20 variants have two different board ids */ 80 # ifdef CONFIG_AT91SAM9G20EK_2MMC 81 /* we may be setup for the 2MMC variant of at91sam9g20ek */ 82 # define CONFIG_MACH_TYPE MACH_TYPE_AT91SAM9G20EK_2MMC 83 # else 84 /* or the normal at91sam9g20ek */ 85 # define CONFIG_MACH_TYPE MACH_TYPE_AT91SAM9G20EK 86 # endif 87 #else 88 /* otherwise default to good old at91sam9260ek */ 89 # define CONFIG_MACH_TYPE MACH_TYPE_AT91SAM9260EK 90 #endif 91 92 /* NAND flash */ 93 #ifdef CONFIG_CMD_NAND 94 #define CONFIG_NAND_ATMEL 95 #define CONFIG_SYS_MAX_NAND_DEVICE 1 96 #define CONFIG_SYS_NAND_BASE ATMEL_BASE_CS3 97 #define CONFIG_SYS_NAND_DBW_8 98 #define CONFIG_SYS_NAND_MASK_ALE (1 << 21) 99 #define CONFIG_SYS_NAND_MASK_CLE (1 << 22) 100 #define CONFIG_SYS_NAND_ENABLE_PIN AT91_PIN_PC14 101 #define CONFIG_SYS_NAND_READY_PIN AT91_PIN_PC13 102 #endif 103 104 /* USB */ 105 #define CONFIG_USB_ATMEL 106 #define CONFIG_USB_ATMEL_CLK_SEL_PLLB 107 #define CONFIG_USB_OHCI_NEW 1 108 #define CONFIG_SYS_USB_OHCI_CPU_INIT 1 109 #define CONFIG_SYS_USB_OHCI_REGS_BASE 0x00500000 /* AT91SAM9260_UHP_BASE */ 110 #define CONFIG_SYS_USB_OHCI_SLOT_NAME "at91sam9260" 111 #define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS 2 112 113 #define CONFIG_SYS_LOAD_ADDR 0x22000000 /* load address */ 114 115 #define CONFIG_SYS_MEMTEST_START CONFIG_SYS_SDRAM_BASE 116 #define CONFIG_SYS_MEMTEST_END 0x23e00000 117 118 #ifdef CONFIG_SYS_USE_DATAFLASH_CS0 119 120 /* bootstrap + u-boot + env + linux in dataflash on CS0 */ 121 #define CONFIG_ENV_OFFSET 0x4200 122 #define CONFIG_ENV_SIZE 0x4200 123 #define CONFIG_ENV_SECT_SIZE 0x210 124 #define CONFIG_ENV_SPI_MAX_HZ 15000000 125 #define CONFIG_BOOTCOMMAND "sf probe 0:0; " \ 126 "sf read 0x22000000 0x84000 0x294000; " \ 127 "bootm 0x22000000" 128 129 #elif CONFIG_SYS_USE_DATAFLASH_CS1 130 131 #define CONFIG_ENV_OFFSET 0x4200 132 #define CONFIG_ENV_SIZE 0x4200 133 #define CONFIG_ENV_SECT_SIZE 0x210 134 #define CONFIG_ENV_SPI_MAX_HZ 15000000 135 #define CONFIG_BOOTCOMMAND "sf probe 0:1; " \ 136 "sf read 0x22000000 0x84000 0x294000; " \ 137 "bootm 0x22000000" 138 139 #elif defined(CONFIG_SYS_USE_NANDFLASH) 140 141 /* bootstrap + u-boot + env + linux in nandflash */ 142 #define CONFIG_ENV_OFFSET 0x120000 143 #define CONFIG_ENV_OFFSET_REDUND 0x100000 144 #define CONFIG_ENV_SIZE 0x20000 /* 1 sector = 128 kB */ 145 #define CONFIG_BOOTCOMMAND "nand read 0x22000000 0x200000 0x300000; bootm" 146 147 #else /* CONFIG_SYS_USE_MMC */ 148 /* bootstrap + u-boot + env + linux in mmc */ 149 /* For FAT system, most cases it should be in the reserved sector */ 150 #define CONFIG_ENV_OFFSET 0x2000 151 #define CONFIG_ENV_SIZE 0x1000 152 #define CONFIG_SYS_MMC_ENV_DEV 0 153 154 #define CONFIG_BOOTCOMMAND \ 155 "fatload mmc 0:1 0x22000000 uImage; bootm" 156 #endif 157 158 /* 159 * Size of malloc() pool 160 */ 161 #define CONFIG_SYS_MALLOC_LEN ROUND(3 * CONFIG_ENV_SIZE + 128*1024, 0x1000) 162 163 #endif 164