/*
 * (C) Copyright 2007-2008
 * Stelian Pop <stelian@popies.net>
 * Lead Tech Design <www.leadtechdesign.com>
 *
 * (C) Copyright 2009-2015
 * Daniel Gorsulowski <daniel.gorsulowski@esd.eu>
 * esd electronic system design gmbh <www.esd.eu>
 *
 * Configuation settings for the esd MEESC board.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#ifndef __CONFIG_H
#define __CONFIG_H

/*
 * SoC must be defined first, before hardware.h is included.
 * In this case SoC is defined in boards.cfg.
 */
#include <asm/hardware.h>

/*
 * Warning: changing CONFIG_SYS_TEXT_BASE requires
 * adapting the initial boot program.
 * Since the linker has to swallow that define, we must use a pure
 * hex number here!
 */
#define CONFIG_SYS_TEXT_BASE		0x21F00000

/*
 * since a number of boards are not being listed in linux
 * arch/arm/tools/mach-types any more, the mach-types have to be
 * defined here
 */
#define MACH_TYPE_MEESC			2165
#define MACH_TYPE_ETHERCAN2		2407

/* ARM asynchronous clock */
#define CONFIG_SYS_AT91_SLOW_CLOCK	32768	/* 32.768 kHz crystal */
#define CONFIG_SYS_AT91_MAIN_CLOCK	16000000/* 16.0 MHz crystal */

/* Misc CPU related */
#define CONFIG_SKIP_LOWLEVEL_INIT
#define CONFIG_ARCH_CPU_INIT
#define CONFIG_SETUP_MEMORY_TAGS
#define CONFIG_INITRD_TAG
#define CONFIG_SERIAL_TAG
#define CONFIG_REVISION_TAG
#define CONFIG_CMDLINE_TAG			/* enable passing of ATAGs */
#define CONFIG_MISC_INIT_R			/* Call misc_init_r */

#define CONFIG_PREBOOT				/* enable preboot variable */

/*
 * Hardware drivers
 */

/* general purpose I/O */
#define CONFIG_AT91_GPIO

/* Console output */
#define CONFIG_ATMEL_USART
#define CONFIG_USART_BASE		ATMEL_BASE_DBGU
#define CONFIG_USART_ID			ATMEL_ID_SYS
#define CONFIG_BAUDRATE			115200

/*
 * BOOTP options
 */
#define CONFIG_BOOTP_BOOTFILESIZE
#define CONFIG_BOOTP_BOOTPATH
#define CONFIG_BOOTP_GATEWAY
#define CONFIG_BOOTP_HOSTNAME

/*
 * Command line configuration.
 */

#ifdef CONFIG_SYS_USE_NANDFLASH
#define CONFIG_CMD_NAND
#endif

/* LED */
#define CONFIG_AT91_LED

/*
 * SDRAM: 1 bank, min 32, max 128 MB
 * Initialized before u-boot gets started.
 */
#define PHYS_SDRAM					ATMEL_BASE_CS1 /* 0x20000000 */
#define PHYS_SDRAM_SIZE				0x02000000     /* 32 MByte */

#define CONFIG_NR_DRAM_BANKS		1
#define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM
#define CONFIG_SYS_SDRAM_SIZE		PHYS_SDRAM_SIZE

#define CONFIG_SYS_MEMTEST_START	(CONFIG_SYS_SDRAM_BASE + 0x00100000)
#define CONFIG_SYS_MEMTEST_END		(CONFIG_SYS_SDRAM_BASE + 0x01E00000)
#define CONFIG_SYS_LOAD_ADDR		(CONFIG_SYS_SDRAM_BASE + 0x00100000)

/*
 * Initial stack pointer: 4k - 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_SRAM0 + 0x1000 - GENERATED_GBL_DATA_SIZE)

/* DataFlash */
#ifdef CONFIG_SYS_USE_DATAFLASH
# define CONFIG_ATMEL_DATAFLASH_SPI
# define CONFIG_HAS_DATAFLASH
# define CONFIG_SYS_MAX_DATAFLASH_BANKS		1
# define CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0	0xC0000000	/* CS0 */
# define AT91_SPI_CLK				15000000
# define DATAFLASH_TCSS				(0x1a << 16)
# define DATAFLASH_TCHS				(0x1 << 24)
#endif

/* NOR flash is not populated, disable it */
#define CONFIG_SYS_NO_FLASH

/* NAND flash */
#ifdef CONFIG_CMD_NAND
# define CONFIG_NAND_ATMEL
# define CONFIG_SYS_MAX_NAND_DEVICE		1
# define CONFIG_SYS_NAND_BASE			ATMEL_BASE_CS3 /* 0x40000000 */
# 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		GPIO_PIN_PD(15)
# define CONFIG_SYS_NAND_READY_PIN		GPIO_PIN_PA(22)
#endif

/* Ethernet */
#define CONFIG_MACB
#define CONFIG_RMII
#define CONFIG_NET_RETRY_COUNT			20
#undef CONFIG_RESET_PHY_R

/* hw-controller addresses */
#define CONFIG_ET1100_BASE		0x70000000

#ifdef CONFIG_SYS_USE_DATAFLASH

/* bootstrap + u-boot + env in dataflash on CS0 */
# define CONFIG_ENV_IS_IN_DATAFLASH
# define CONFIG_SYS_MONITOR_BASE	(CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0 + \
					0x8400)
# define CONFIG_ENV_OFFSET		0x4200
# define CONFIG_ENV_ADDR		(CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0 + \
					CONFIG_ENV_OFFSET)
# define CONFIG_ENV_SIZE		0x4200

#elif CONFIG_SYS_USE_NANDFLASH

/* bootstrap + u-boot + env + linux in nandflash */
# define CONFIG_ENV_IS_IN_NAND		1
# define CONFIG_ENV_OFFSET		0xC0000
# define CONFIG_ENV_SIZE		0x20000

#endif

#define CONFIG_SYS_CBSIZE		512
#define CONFIG_SYS_MAXARGS		16
#define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + \
					sizeof(CONFIG_SYS_PROMPT) + 16)
#define CONFIG_SYS_LONGHELP
#define CONFIG_CMDLINE_EDITING
#define CONFIG_AUTO_COMPLETE

/*
 * Size of malloc() pool
 */
#define CONFIG_SYS_MALLOC_LEN		ROUND(3 * CONFIG_ENV_SIZE + \
					128*1024, 0x1000)

#endif