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/*
* (C) Copyright 2010
* Reinhard Meyer, EMK Elektronik, reinhard.meyer@emk-elektronik.de
*
* Configuation settings for the TOP9000 CPU module with AT91SAM9XE.
*
* SPDX-License-Identifier: GPL-2.0+
*/
/*
* top9000 with at91sam9xe256 or at91sam9xe512
*
* Initial Bootloader is in embedded flash.
* Vital Product Data, U-Boot Environment are in I2C-EEPROM.
* U-Boot is in embedded flash, a backup U-Boot can be in NAND flash.
* kernel and file system are either in NAND flash or on a micro SD card.
* NAND flash is optional.
* I2C EEPROM is never optional.
* SPI FRAM is optional.
* SPI ENC28J60 is optional.
* 16 or 32 bit wide SDRAM.
*/
#ifndef __CONFIG_H
#define __CONFIG_H
/* SoC must be defined first, before hardware.h is included */
#define CONFIG_AT91SAM9XE
#include <asm/hardware.h>
/*
* Warning: changing CONFIG_SYS_TEXT_BASE requires
* adapting the initial boot program.
*/
#define CONFIG_SYS_TEXT_BASE 0x20000000 /* start of SDRAM */
/* Command line configuration */
#include <config_cmd_default.h>
#undef CONFIG_CMD_FPGA
#undef CONFIG_CMD_SETGETDCR
#undef CONFIG_CMD_XIMG
#define CONFIG_CMD_ASKENV
#define CONFIG_SYS_CBSIZE 256
#define CONFIG_SYS_MAXARGS 16
#define CONFIG_SYS_PBSIZE \
(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
#define CONFIG_SYS_PROMPT "TOP9000> "
#define CONFIG_SYS_LONGHELP
#define CONFIG_CMDLINE_EDITING
#define CONFIG_CMD_BDI
#define CONFIG_CMD_CACHE
/* ARM asynchronous clock */
#define CONFIG_SYS_AT91_SLOW_CLOCK 32768 /* slow clock xtal */
#define CONFIG_SYS_AT91_MAIN_CLOCK 18432000 /* main clock xtal */
#define CONFIG_SYS_HZ 1000
/* Misc CPU related */
#define CONFIG_ARCH_CPU_INIT
#define CONFIG_CMDLINE_TAG /* enable passing of ATAGs */
#define CONFIG_SETUP_MEMORY_TAGS
#define CONFIG_INITRD_TAG
#define CONFIG_SKIP_LOWLEVEL_INIT
#define CONFIG_BOARD_EARLY_INIT_F
#define CONFIG_DISPLAY_CPUINFO
#define CONFIG_AT91RESET_EXTRST /* assert external reset */
/* general purpose I/O */
#define CONFIG_ATMEL_LEGACY /* required until (g)pio is fixed */
#define CONFIG_AT91_GPIO
#define CONFIG_AT91_GPIO_PULLUP 1 /* keep pullups on peripheral pins */
/* serial console */
#define CONFIG_ATMEL_USART
#define CONFIG_USART_BASE ATMEL_BASE_DBGU
#define CONFIG_USART_ID ATMEL_ID_SYS
#define CONFIG_BAUDRATE 115200
/* SD/MMC card */
#define CONFIG_MMC
#define CONFIG_GENERIC_MMC
#define CONFIG_GENERIC_ATMEL_MCI
#define CONFIG_SYS_MMC_CD_PIN AT91_PIN_PC9
#define CONFIG_CMD_MMC
/* Ethernet */
#define CONFIG_MACB
#define CONFIG_SYS_PHY_ID 1
#define CONFIG_RMII
#define CONFIG_NET_RETRY_COUNT 20
/* real time clock */
#define CONFIG_RTC_AT91SAM9_RTT
#define CONFIG_CMD_DATE
#if defined(CONFIG_AT91SAM9XE)
/*
* NOR flash - use embedded flash of SAM9XE256/512
* U-Boot will not fit into 128K !
* 2010.09 will not fit into 256K with all options enabled !
*
* Layout:
* 16kB 1st Bootloader
* Rest U-Boot
* the first sector (16kB) of EFLASH cannot be unprotected
* with u-boot commands
*/
# define CONFIG_AT91_EFLASH
# define CONFIG_SYS_FLASH_BASE ATMEL_BASE_FLASH
# define CONFIG_SYS_MAX_FLASH_SECT 32
# define CONFIG_SYS_MAX_FLASH_BANKS 1
# define CONFIG_SYS_FLASH_PROTECTION
# define CONFIG_EFLASH_PROTSECTORS 1 /* protect first sector */
#endif
/* SPI */
#define CONFIG_ATMEL_SPI
#define CONFIG_CMD_SPI
/* RAMTRON FRAM */
#define CONFIG_CMD_SF
#define CONFIG_ATMEL_SPI0 /* SPI used for FRAM is SPI0 */
#define FRAM_SPI_BUS 0
#define FRAM_CS_NUM 0
#define CONFIG_SPI_FRAM_RAMTRON
#define CONFIG_SF_DEFAULT_SPEED 1000000 /* be conservative here... */
#define CONFIG_SF_DEFAULT_MODE SPI_MODE_0
#define CONFIG_SPI_FRAM_RAMTRON_NON_JEDEC "FM25H20"
/* Microchip ENC28J60 (second LAN) */
#if defined(CONFIG_EVAL9000)
# define CONFIG_ENC28J60
# define CONFIG_ATMEL_SPI1 /* SPI used for ENC28J60 is SPI1 */
# define ENC_SPI_BUS 1
# define ENC_CS_NUM 0
# define ENC_SPI_CLOCK 1000000
#endif /* CONFIG_EVAL9000 */
/*
* SDRAM: 1 bank, min 32, max 128 MB
* Initialized before u-boot gets started.
*/
#define CONFIG_NR_DRAM_BANKS 1
#define CONFIG_SYS_SDRAM_BASE ATMEL_BASE_CS1
#define CONFIG_SYS_SDRAM_SIZE 0x08000000
#define CONFIG_SYS_MEMTEST_START CONFIG_SYS_SDRAM_BASE
#define CONFIG_SYS_MEMTEST_END (CONFIG_SYS_SDRAM_BASE + 0x01e00000)
#define CONFIG_SYS_LOAD_ADDR \
(CONFIG_SYS_SDRAM_BASE + 0x01000000)
/*
* Initial stack pointer: 16k - GENERATED_GBL_DATA_SIZE in internal SRAM,
* leaving the correct space for initial global data structure above
* that address while providing maximum stack area below.
*/
#define CONFIG_SYS_INIT_SP_ADDR \
(ATMEL_BASE_SRAM + 0x4000 - GENERATED_GBL_DATA_SIZE)
/*
* NAND flash: 256 MB (optional)
*
* Layout:
* 640kB: u-boot (includes space for spare sectors, handled by
* initial loader)
* 2MB: kernel
* rest: file system
*/
#define CONFIG_NAND_ATMEL
#define CONFIG_SYS_MAX_NAND_DEVICE 1
#define CONFIG_SYS_NAND_BASE ATMEL_BASE_CS3
#define CONFIG_SYS_NAND_DBW_8
#define CONFIG_SYS_NAND_MASK_ALE (1 << 21)
#define CONFIG_SYS_NAND_MASK_CLE (1 << 22)
#define CONFIG_SYS_NAND_ENABLE_PIN AT91_PIN_PC14
#define CONFIG_SYS_NAND_READY_PIN AT91_PIN_PC13
#define CONFIG_CMD_NAND
/* USB */
#define CONFIG_USB_ATMEL
#define CONFIG_USB_OHCI_NEW
#define CONFIG_DOS_PARTITION
#define CONFIG_SYS_USB_OHCI_CPU_INIT
#define CONFIG_SYS_USB_OHCI_REGS_BASE ATMEL_UHP_BASE
#define CONFIG_SYS_USB_OHCI_SLOT_NAME "top9000"
#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS 2
#define CONFIG_USB_STORAGE
#define CONFIG_CMD_USB
/* I2C support must always be enabled */
#define CONFIG_CMD_I2C
#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_SOFT /* I2C bit-banged */
#define CONFIG_SYS_I2C_SOFT_SPEED 400000
#define CONFIG_SYS_I2C_SOFT_SLAVE 0x7F
#define I2C0_PORT AT91_PIO_PORTA
#define SDA0_PIN 23
#define SCL0_PIN 24
#define I2C1_PORT AT91_PIO_PORTB
#define SDA1_PIN 12
#define SCL1_PIN 13
#define I2C_SOFT_DECLARATIONS void iic_init(void);\
int iic_read(void);\
void iic_sda(int);\
void iic_scl(int);
#define I2C_ACTIVE
#define I2C_TRISTATE
#define I2C_INIT iic_init()
#define I2C_READ iic_read()
#define I2C_SDA(bit) iic_sda(bit)
#define I2C_SCL(bit) iic_scl(bit)
#define I2C_DELAY udelay(3)
/* EEPROM configuration */
#define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS 5
#define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS 5
#define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 2
#define CONFIG_SYS_EEPROM_SIZE 0x2000
#define CONFIG_SYS_I2C_EEPROM_ADDR 0x57
/* later: #define CONFIG_I2C_ENV_EEPROM_BUS 0 */
/* ENV is always in I2C-EEPROM */
#define CONFIG_ENV_IS_IN_EEPROM
#define CONFIG_ENV_OFFSET 0x1000
#define CONFIG_ENV_SIZE 0x0f00
/* VPD settings */
#define CONFIG_SYS_I2C_FACT_ADDR 0x57
#define CONFIG_SYS_FACT_OFFSET 0x1F00
#define CONFIG_SYS_FACT_SIZE 0x0100
/* later: #define CONFIG_MISC_INIT_R */
/* define the next only if you want to allow users to enter VPD data */
#define CONFIG_SYS_FACT_ENTRY
#ifndef __ASSEMBLY__
extern void read_factory_r(void);
#endif
/*
* Only interrupt autoboot if <space> is pressed. Otherwise, garbage
* data on the serial line may interrupt the boot sequence.
*/
#define CONFIG_BOOTDELAY 1
#define CONFIG_AUTOBOOT
#define CONFIG_AUTOBOOT_KEYED
#define CONFIG_AUTOBOOT_PROMPT \
"Press SPACE to abort autoboot in %d seconds\n", bootdelay
#define CONFIG_AUTOBOOT_DELAY_STR "d"
#define CONFIG_AUTOBOOT_STOP_STR " "
/*
* add filesystem commands if we have at least 1 storage
* media with filesystem
*/
#if defined(CONFIG_NAND_ATMEL) \
|| defined(CONFIG_USB_ATMEL) \
|| defined(CONFIG_MMC)
# define CONFIG_DOS_PARTITION
# define CONFIG_CMD_FAT
# define CONFIG_CMD_EXT2
/* later: #define CONFIG_CMD_JFFS2 */
#endif
/* add NET commands if we have at least 1 LAN */
#if defined(CONFIG_MACB) || defined(CONFIG_ENC28J60)
# define CONFIG_CMD_PING
# define CONFIG_CMD_DHCP
# define CONFIG_CMD_MII
/* is this really needed ? */
# define CONFIG_RESET_PHY_R
/* BOOTP options */
# define CONFIG_BOOTP_BOOTFILESIZE
# define CONFIG_BOOTP_BOOTPATH
# define CONFIG_BOOTP_GATEWAY
# define CONFIG_BOOTP_HOSTNAME
#endif
/* linux in NAND flash */
#define CONFIG_BOOTCOUNT_LIMIT 1
#define CONFIG_BOOTCOMMAND \
"nand read 0x21000000 0xA0000 0x200000; bootm"
#define CONFIG_BOOTARGS \
"console=ttyS0,115200 " \
"root=/dev/mtdblock2 " \
"mtdparts=atmel_nand:" \
"640k(uboot)ro," \
"2M(linux)," \
"16M(root)," \
"-(rest) " \
"rw "\
"rootfstype=jffs2"
/* Size of malloc() pool */
#define CONFIG_SYS_MALLOC_LEN \
ROUND(3 * CONFIG_ENV_SIZE + 128*1024, 0x1000)
#endif
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