1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * (C) Copyright 2011 4 * egnite GmbH <info@egnite.de> 5 * 6 * Configuation settings for Ethernut 5 with AT91SAM9XE. 7 */ 8 9 #ifndef __CONFIG_H 10 #define __CONFIG_H 11 12 #include <asm/hardware.h> 13 14 /* The first stage boot loader expects u-boot running at this address. */ 15 16 /* The first stage boot loader takes care of low level initialization. */ 17 #define CONFIG_SKIP_LOWLEVEL_INIT 18 19 /* Set our official architecture number. */ 20 #define CONFIG_MACH_TYPE MACH_TYPE_ETHERNUT5 21 22 /* CPU information */ 23 24 /* ARM asynchronous clock */ 25 #define CONFIG_SYS_AT91_SLOW_CLOCK 32768 /* slow clock xtal */ 26 #define CONFIG_SYS_AT91_MAIN_CLOCK 18432000 /* 18.432 MHz crystal */ 27 28 /* 32kB internal SRAM */ 29 #define CONFIG_SRAM_BASE 0x00300000 /*AT91SAM9XE_SRAM_BASE */ 30 #define CONFIG_SRAM_SIZE (32 << 10) 31 #define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SRAM_BASE + CONFIG_SRAM_SIZE - \ 32 GENERATED_GBL_DATA_SIZE) 33 34 /* 128MB SDRAM in 1 bank */ 35 #define CONFIG_SYS_SDRAM_BASE 0x20000000 36 #define CONFIG_SYS_SDRAM_SIZE (128 << 20) 37 #define CONFIG_SYS_LOAD_ADDR CONFIG_SYS_SDRAM_BASE 38 #define CONFIG_LOADADDR CONFIG_SYS_LOAD_ADDR 39 #define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + (1 << 20)) 40 41 /* 512kB on-chip NOR flash */ 42 # define CONFIG_SYS_MAX_FLASH_BANKS 1 43 # define CONFIG_SYS_FLASH_BASE 0x00200000 /* AT91SAM9XE_FLASH_BASE */ 44 # define CONFIG_AT91_EFLASH 45 # define CONFIG_SYS_MAX_FLASH_SECT 32 46 # define CONFIG_EFLASH_PROTSECTORS 1 47 48 49 /* bootstrap + u-boot + env + linux in dataflash on CS0 */ 50 51 /* NAND flash */ 52 #ifdef CONFIG_CMD_NAND 53 #define CONFIG_SYS_MAX_NAND_DEVICE 1 54 #define CONFIG_SYS_NAND_BASE 0x40000000 55 #define CONFIG_SYS_NAND_DBW_8 56 /* our ALE is AD21 */ 57 #define CONFIG_SYS_NAND_MASK_ALE (1 << 21) 58 /* our CLE is AD22 */ 59 #define CONFIG_SYS_NAND_MASK_CLE (1 << 22) 60 #define CONFIG_SYS_NAND_ENABLE_PIN GPIO_PIN_PC(14) 61 #endif 62 63 /* JFFS2 */ 64 #ifdef CONFIG_CMD_JFFS2 65 #define CONFIG_JFFS2_NAND 66 #endif 67 68 /* Ethernet */ 69 #define CONFIG_NET_RETRY_COUNT 20 70 #define CONFIG_MACB 71 #define CONFIG_RMII 72 #define CONFIG_PHY_ID 0 73 #define CONFIG_MACB_SEARCH_PHY 74 75 /* MMC */ 76 #ifdef CONFIG_CMD_MMC 77 #define CONFIG_GENERIC_ATMEL_MCI 78 #define CONFIG_SYS_MMC_CD_PIN AT91_PIO_PORTC, 8 79 #endif 80 81 /* USB */ 82 #ifdef CONFIG_CMD_USB 83 #define CONFIG_USB_ATMEL 84 #define CONFIG_USB_ATMEL_CLK_SEL_PLLB 85 #define CONFIG_USB_OHCI_NEW 86 #define CONFIG_SYS_USB_OHCI_CPU_INIT 87 #define CONFIG_SYS_USB_OHCI_REGS_BASE 0x00500000 88 #define CONFIG_SYS_USB_OHCI_SLOT_NAME "host" 89 #define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS 2 90 #endif 91 92 /* RTC */ 93 #if defined(CONFIG_CMD_DATE) || defined(CONFIG_CMD_SNTP) 94 #define CONFIG_SYS_I2C_RTC_ADDR 0x51 95 #endif 96 97 /* I2C */ 98 #define CONFIG_SYS_MAX_I2C_BUS 1 99 100 #define CONFIG_SYS_I2C 101 #define CONFIG_SYS_I2C_SOFT /* I2C bit-banged */ 102 #define CONFIG_SYS_I2C_SOFT_SPEED 100000 103 #define CONFIG_SYS_I2C_SOFT_SLAVE 0 104 105 #define I2C_SOFT_DECLARATIONS 106 107 #define GPIO_I2C_SCL AT91_PIO_PORTA, 24 108 #define GPIO_I2C_SDA AT91_PIO_PORTA, 23 109 110 #define I2C_INIT { \ 111 at91_set_pio_periph(AT91_PIO_PORTA, 23, 0); \ 112 at91_set_pio_multi_drive(AT91_PIO_PORTA, 23, 1); \ 113 at91_set_pio_periph(AT91_PIO_PORTA, 24, 0); \ 114 at91_set_pio_output(AT91_PIO_PORTA, 24, 0); \ 115 at91_set_pio_multi_drive(AT91_PIO_PORTA, 24, 1); \ 116 } 117 118 #define I2C_ACTIVE at91_set_pio_output(AT91_PIO_PORTA, 23, 0) 119 #define I2C_TRISTATE at91_set_pio_input(AT91_PIO_PORTA, 23, 0) 120 #define I2C_SCL(bit) at91_set_pio_value(AT91_PIO_PORTA, 24, bit) 121 #define I2C_SDA(bit) at91_set_pio_value(AT91_PIO_PORTA, 23, bit) 122 #define I2C_DELAY udelay(100) 123 #define I2C_READ at91_get_pio_value(AT91_PIO_PORTA, 23) 124 125 /* DHCP/BOOTP options */ 126 #ifdef CONFIG_CMD_DHCP 127 #define CONFIG_BOOTP_BOOTFILESIZE 128 #define CONFIG_SYS_AUTOLOAD "n" 129 #endif 130 131 /* File systems */ 132 133 /* Boot command */ 134 #define CONFIG_CMDLINE_TAG 135 #define CONFIG_SETUP_MEMORY_TAGS 136 #define CONFIG_INITRD_TAG 137 #define CONFIG_BOOTCOMMAND "sf probe 0:0; " \ 138 "sf read 0x22000000 0xc6000 0x294000; " \ 139 "bootm 0x22000000" 140 141 /* Misc. u-boot settings */ 142 143 #endif 144