avr32: add grasshopper (ICnova AP7000) board

The grasshopper board is a neat avr32 evaluation kit produced by In-Circuit
GmbH.
See http://www.ic-board.de/product_info.php?info=p75_ICnova-AP7000-Base.html
for detailed information about this device.

Signed-off-by: Andreas Bießmann <biessmann@corscience.de>
Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>

5 files changed, 357 insertions, 0 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index f8d8559..fd4181f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -600,6 +600,7 @@ Rishi Bhattacharya <rishi@ti.com>
 Andreas Bießmann <andreas.devel@gmail.com>
 
 	at91rm9200ek	at91rm9200
+	grasshopper	avr32
 
 Cliff Brake <cliff.brake@gmail.com>
 
diff --git a/board/in-circuit/grasshopper/Makefile b/board/in-circuit/grasshopper/Makefile
new file mode 100644
index 0000000..a6c36c7
--- /dev/null
+++ b/board/in-circuit/grasshopper/Makefile
@@ -0,0 +1,45 @@
+#
+# (C) Copyright 2001-2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# Copyright (C) 2011
+# Corscience GmbH & Co.KG, Andreas Bießmann <biessmann@corscience.de>
+#
+# 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
+
+include $(TOPDIR)/config.mk
+
+LIB     := $(obj)lib$(BOARD).o
+
+COBJS-y += $(BOARD).o
+
+SRCS    := $(COBJS-y:.o=.c)
+OBJS    := $(addprefix $(obj),$(COBJS-y))
+
+$(LIB): $(obj).depend $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/in-circuit/grasshopper/grasshopper.c b/board/in-circuit/grasshopper/grasshopper.c
new file mode 100644
index 0000000..475a759
--- /dev/null
+++ b/board/in-circuit/grasshopper/grasshopper.c
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2011
+ * Corscience GmbH & Co.KG, Andreas Bießmann <biessmann@corscience.de>
+ *
+ * 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
+ */
+#include <common.h>
+
+#include <asm/io.h>
+#include <asm/sdram.h>
+#include <asm/arch/clk.h>
+#include <asm/arch/hmatrix.h>
+#include <asm/arch/mmu.h>
+#include <asm/arch/portmux.h>
+#include <netdev.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct mmu_vm_range mmu_vmr_table[CONFIG_SYS_NR_VM_REGIONS] = {
+	{
+		.virt_pgno	= CONFIG_SYS_FLASH_BASE >> PAGE_SHIFT,
+		.nr_pages	= CONFIG_SYS_FLASH_SIZE >> PAGE_SHIFT,
+		.phys		= (CONFIG_SYS_FLASH_BASE >> PAGE_SHIFT)
+				| MMU_VMR_CACHE_NONE,
+	}, {
+		.virt_pgno	= CONFIG_SYS_SDRAM_BASE >> PAGE_SHIFT,
+		.nr_pages	= EBI_SDRAM_SIZE >> PAGE_SHIFT,
+		.phys		= (CONFIG_SYS_SDRAM_BASE >> PAGE_SHIFT)
+				| MMU_VMR_CACHE_WRBACK,
+	},
+};
+
+static const struct sdram_config sdram_config = {
+	/* Dual MT48LC16M16A2-7E (or equal) */
+	.data_bits		= SDRAM_DATA_32BIT,
+	.row_bits		= 13,
+	.col_bits		= 9,
+	.bank_bits		= 2,
+	.cas			= 2,
+	.twr			= 2,
+	.trc			= 7,
+	.trp			= 2,
+	.trcd			= 2,
+	.tras			= 4,
+	.txsr			= 7,
+	/* 7.81 us */
+	.refresh_period		= (781 * (SDRAMC_BUS_HZ / 1000)) / 100000,
+};
+
+int board_early_init_f(void)
+{
+	/* Enable SDRAM in the EBI mux */
+	hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE));
+
+	portmux_enable_ebi(SDRAM_DATA_32BIT, 23, 0, PORTMUX_DRIVE_HIGH);
+	portmux_enable_usart0(PORTMUX_DRIVE_MIN);
+	portmux_enable_usart1(PORTMUX_DRIVE_MIN);
+#if defined(CONFIG_MACB)
+	portmux_enable_macb0(PORTMUX_MACB_MII, PORTMUX_DRIVE_LOW);
+#endif
+
+	return 0;
+}
+
+phys_size_t initdram(int board_type)
+{
+	unsigned long expected_size;
+	unsigned long actual_size;
+	void *sdram_base;
+
+	sdram_base = uncached(EBI_SDRAM_BASE);
+
+	expected_size = sdram_init(sdram_base, &sdram_config);
+	actual_size = get_ram_size(sdram_base, expected_size);
+
+	if (expected_size != actual_size)
+		printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
+				actual_size >> 20, expected_size >> 20);
+
+	return actual_size;
+}
+
+int board_early_init_r(void)
+{
+	gd->bd->bi_phy_id[0] = 0x00;
+	return 0;
+}
+
+#ifdef CONFIG_CMD_NET
+int board_eth_init(bd_t *bi)
+{
+	macb_eth_initialize(0, (void *)ATMEL_BASE_MACB0, bi->bi_phy_id[0]);
+	return 0;
+}
+#endif
+/* vim: set noet ts=8: */
diff --git a/boards.cfg b/boards.cfg
index e501890..38ccb8c 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -228,6 +228,7 @@ atstk1003                    avr32       at32ap      atstk1000           atmel
 atstk1004                    avr32       at32ap      atstk1000           atmel          at32ap700x
 atstk1006                    avr32       at32ap      atstk1000           atmel          at32ap700x
 favr-32-ezkit                avr32       at32ap      -                   earthlcd       at32ap700x
+grasshopper                  avr32       at32ap      -                   in-circuit     at32ap700x
 mimc200                      avr32       at32ap      -                   mimc           at32ap700x
 hammerhead                   avr32       at32ap      -                   miromico       at32ap700x
 bct-brettl2                  blackfin    blackfin
diff --git a/include/configs/grasshopper.h b/include/configs/grasshopper.h
new file mode 100644
index 0000000..9779449
--- /dev/null
+++ b/include/configs/grasshopper.h
@@ -0,0 +1,198 @@
+/*
+ * 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
+#define CONFIG_NET_MULTI
+
+/*
+ * 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_SYS_PROMPT_HUSH_PS2	"~> "
+#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)
+#define CONFIG_SYS_BAUDRATE_TABLE	{ 115200, 38400, 19200, 9600, 2400 }
+
+#endif /* __GRASSHOPPER_CONFIG_H */
+/* vim: set ts=8 noet: */