| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * (C) Copyright 2011 |
| * egnite GmbH <info@egnite.de> |
| * |
| * Configuation settings for Ethernut 5 with AT91SAM9XE. |
| */ |
| |
| #ifndef __CONFIG_H |
| #define __CONFIG_H |
| |
| #include <asm/hardware.h> |
| |
| /* The first stage boot loader expects u-boot running at this address. */ |
| |
| /* The first stage boot loader takes care of low level initialization. */ |
| |
| /* CPU information */ |
| |
| /* ARM asynchronous clock */ |
| #define CFG_SYS_AT91_SLOW_CLOCK 32768 /* slow clock xtal */ |
| #define CFG_SYS_AT91_MAIN_CLOCK 18432000 /* 18.432 MHz crystal */ |
| |
| /* 32kB internal SRAM */ |
| #define CFG_SYS_INIT_RAM_ADDR 0x00300000 /*AT91SAM9XE_SRAM_BASE */ |
| #define CFG_SYS_INIT_RAM_SIZE (32 << 10) |
| |
| /* 128MB SDRAM in 1 bank */ |
| #define CFG_SYS_SDRAM_BASE 0x20000000 |
| #define CFG_SYS_SDRAM_SIZE (128 << 20) |
| |
| /* 512kB on-chip NOR flash */ |
| # define CFG_SYS_FLASH_BASE 0x00200000 /* AT91SAM9XE_FLASH_BASE */ |
| |
| |
| /* bootstrap + u-boot + env + linux in dataflash on CS0 */ |
| |
| /* NAND flash */ |
| #ifdef CONFIG_CMD_NAND |
| #define CFG_SYS_NAND_BASE 0x40000000 |
| /* our ALE is AD21 */ |
| #define CFG_SYS_NAND_MASK_ALE (1 << 21) |
| /* our CLE is AD22 */ |
| #define CFG_SYS_NAND_MASK_CLE (1 << 22) |
| #define CFG_SYS_NAND_ENABLE_PIN GPIO_PIN_PC(14) |
| #endif |
| |
| /* JFFS2 */ |
| |
| /* Ethernet */ |
| #define CFG_PHY_ID 0 |
| |
| /* MMC */ |
| #ifdef CONFIG_CMD_MMC |
| #define CFG_SYS_MMC_CD_PIN AT91_PIO_PORTC, 8 |
| #endif |
| |
| /* RTC */ |
| #if defined(CONFIG_CMD_DATE) || defined(CONFIG_CMD_SNTP) |
| #define CFG_SYS_I2C_RTC_ADDR 0x51 |
| #endif |
| |
| /* I2C */ |
| #define CFG_SYS_MAX_I2C_BUS 1 |
| |
| #define I2C_SOFT_DECLARATIONS |
| |
| #define GPIO_I2C_SCL AT91_PIO_PORTA, 24 |
| #define GPIO_I2C_SDA AT91_PIO_PORTA, 23 |
| |
| #define I2C_INIT { \ |
| at91_set_pio_periph(AT91_PIO_PORTA, 23, 0); \ |
| at91_set_pio_multi_drive(AT91_PIO_PORTA, 23, 1); \ |
| at91_set_pio_periph(AT91_PIO_PORTA, 24, 0); \ |
| at91_set_pio_output(AT91_PIO_PORTA, 24, 0); \ |
| at91_set_pio_multi_drive(AT91_PIO_PORTA, 24, 1); \ |
| } |
| |
| #define I2C_ACTIVE at91_set_pio_output(AT91_PIO_PORTA, 23, 0) |
| #define I2C_TRISTATE at91_set_pio_input(AT91_PIO_PORTA, 23, 0) |
| #define I2C_SCL(bit) at91_set_pio_value(AT91_PIO_PORTA, 24, bit) |
| #define I2C_SDA(bit) at91_set_pio_value(AT91_PIO_PORTA, 23, bit) |
| #define I2C_DELAY udelay(100) |
| #define I2C_READ at91_get_pio_value(AT91_PIO_PORTA, 23) |
| |
| /* File systems */ |
| |
| /* Boot command */ |
| |
| /* Misc. u-boot settings */ |
| |
| #endif |
