/*
 * Copyright (C) 2011
 * Corscience GmbH & Co.KG, Andreas Bießmann <biessmann@corscience.de>
 *
 * Configuration settings for the grasshopper (ICnova AP7000) board
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */
#ifndef __GRASSHOPPER_CONFIG_H
#define __GRASSHOPPER_CONFIG_H

#include <asm/arch/hardware.h>

#define CONFIG_AVR32
#define CONFIG_AT32AP
#define CONFIG_AT32AP7000

/*
 * Timer clock frequency. We're using the CPU-internal COUNT register
 * for this, so this is equivalent to the CPU core clock frequency
 */
#define CONFIG_SYS_HZ			1000

/*
 * Set up the PLL to run at 140 MHz, the CPU to run at the PLL
 * frequency, the HSB and PBB at 1/2, and the PBA to run at 1/4 the
 * PLL frequency.
 * (CONFIG_SYS_OSC0_HZ * CONFIG_SYS_PLL0_MUL) / CONFIG_SYS_PLL0_DIV = PLL MHz
 */
#define CONFIG_PLL
#define CONFIG_SYS_POWER_MANAGER
#define CONFIG_SYS_OSC0_HZ		20000000
#define CONFIG_SYS_PLL0_DIV		1
#define CONFIG_SYS_PLL0_MUL		7
#define CONFIG_SYS_PLL0_SUPPRESS_CYCLES	16
/*
 * Set the CPU running at:
 * PLL / (2^CONFIG_SYS_CLKDIV_CPU) = CPU MHz
 */
#define CONFIG_SYS_CLKDIV_CPU		0
/*
 * Set the HSB running at:
 * PLL / (2^CONFIG_SYS_CLKDIV_HSB) = HSB MHz
 */
#define CONFIG_SYS_CLKDIV_HSB		1
/*
 * Set the PBA running at:
 * PLL / (2^CONFIG_SYS_CLKDIV_PBA) = PBA MHz
 */
#define CONFIG_SYS_CLKDIV_PBA		2
/*
 * Set the PBB running at:
 * PLL / (2^CONFIG_SYS_CLKDIV_PBB) = PBB MHz
 */
#define CONFIG_SYS_CLKDIV_PBB		1

/* Reserve VM regions for SDRAM and NOR flash */
#define CONFIG_SYS_NR_VM_REGIONS	2

/*
 * The PLLOPT register controls the PLL like this:
 *   icp = PLLOPT<2>
 *   ivco = PLLOPT<1:0>
 *
 * We want icp=1 (default) and ivco=0 (80-160 MHz) or ivco=2 (150-240MHz).
 */
#define CONFIG_SYS_PLL0_OPT		0x04

#define CONFIG_USART_BASE		ATMEL_BASE_USART1
#define CONFIG_USART_ID			1

/* User serviceable stuff */
#define CONFIG_CMDLINE_TAG
#define CONFIG_SETUP_MEMORY_TAGS
#define CONFIG_INITRD_TAG

#define CONFIG_STACKSIZE		(2048)

#define CONFIG_BAUDRATE			115200

/*
 * 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	" "

/*
 * After booting the board for the first time, new ethernet addresses
 * should be generated and assigned to the environment variables
 * "ethaddr". This is normally done during production.
 */
#define CONFIG_OVERWRITE_ETHADDR_ONCE

/*
 * BOOTP options
 */
#define CONFIG_BOOTP_SUBNETMASK
#define CONFIG_BOOTP_GATEWAY

/*
 * Command line configuration.
 */
#include <config_cmd_default.h>

/* remove unneeded commands */
#undef CONFIG_CMD_FPGA
#undef CONFIG_CMD_SETGETDCR

/* add useful commands */
#define CONFIG_CMD_ASKENV
#define CONFIG_CMD_DHCP
#define CONFIG_CMD_JFFS2
#define CONFIG_CMD_PING
#define CONFIG_CMD_REGINFO

#define CONFIG_SYS_HUSH_PARSER
#define CONFIG_AUTO_COMPLETE
#define CONFIG_CMDLINE_EDITING

#define CONFIG_ATMEL_USART
#define CONFIG_MACB
#define CONFIG_PORTMUX_PIO
#define CONFIG_SYS_NR_PIOS		5
#define CONFIG_SYS_HSDRAMC

#define CONFIG_SYS_DCACHE_LINESZ	32
#define CONFIG_SYS_ICACHE_LINESZ	32

#define CONFIG_NR_DRAM_BANKS		1

#define CONFIG_SYS_FLASH_CFI
#define CONFIG_FLASH_CFI_DRIVER

#define CONFIG_SYS_FLASH_BASE		0x00000000
#define CONFIG_SYS_FLASH_SIZE		0x800000
#define CONFIG_SYS_MAX_FLASH_BANKS	1
#define CONFIG_SYS_MAX_FLASH_SECT	135

#define CONFIG_SYS_MONITOR_BASE		CONFIG_SYS_FLASH_BASE
#define CONFIG_SYS_TEXT_BASE		0x00000000

#define CONFIG_SYS_INTRAM_BASE		INTERNAL_SRAM_BASE
#define CONFIG_SYS_INTRAM_SIZE		INTERNAL_SRAM_SIZE
#define CONFIG_SYS_SDRAM_BASE		EBI_SDRAM_BASE

#define CONFIG_ENV_IS_IN_FLASH
/* place u-boot env in flash sector after u-boot */
#define CONFIG_ENV_SIZE			0x10000
#define CONFIG_ENV_ADDR			0x20000

#define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_INTRAM_BASE + \
					 CONFIG_SYS_INTRAM_SIZE)

#define CONFIG_SYS_MALLOC_LEN		(256*1024)
#define CONFIG_SYS_DMA_ALLOC_LEN	(16384)

/* Allow 4MB for the kernel run-time image */
#define CONFIG_SYS_LOAD_ADDR		(EBI_SDRAM_BASE + 0x00400000)
#define CONFIG_SYS_BOOTPARAMS_LEN	(16 * 1024)

/* Other configuration settings that shouldn't have to change all that often */
#define CONFIG_SYS_PROMPT		"U-Boot> "
#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_LONGHELP

#define CONFIG_SYS_MEMTEST_START	EBI_SDRAM_BASE
#define CONFIG_SYS_MEMTEST_END		(CONFIG_SYS_MEMTEST_START + 0x700000)

#endif /* __GRASSHOPPER_CONFIG_H */
/* vim: set ts=8 noet: */
