at91: Add support for taskit AT91SAM9G20 boards.

This adds support for the AT91SAM9G20 boards by taskit GmbH.
Both boards, Stamp9G20 and PortuxG20, are integrated in one
file. PortuxG20 is basically a SBC built around the Stamp9G20.

Signed-off-by: Markus Hubig <mhubig@imko.de>
Cc: Andreas Bießmann <andreas.devel@googlemail.com>
Signed-off-by: Andreas Bießmann <andreas.deve@googlemail.com>

1 files changed, 266 insertions, 0 deletions

diff --git a/include/configs/stamp9g20.h b/include/configs/stamp9g20.h
new file mode 100644
index 0000000..a2a0156
--- /dev/null
+++ b/include/configs/stamp9g20.h
@@ -0,0 +1,266 @@
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian@popies.net>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * (C) Copyright 2010
+ * Achim Ehrlich <aehrlich@taskit.de>
+ * taskit GmbH <www.taskit.de>
+ *
+ * (C) Copyright 2012
+ * Markus Hubig <mhubig@imko.de>
+ * IMKO GmbH <www.imko.de>
+ *
+ * Configuation settings for the stamp9g20 CPU module.
+ *
+ * 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 __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		0x23f00000
+
+/* ARM asynchronous clock */
+#define CONFIG_SYS_AT91_SLOW_CLOCK	32768		/* slow clock xtal */
+#define CONFIG_SYS_AT91_MAIN_CLOCK	18432000	/* 18.432MHz crystal */
+#define CONFIG_SYS_HZ			1000		/* 1ms resolution */
+
+/* misc settings */
+#define CONFIG_CMDLINE_TAG		/* pass commandline to Kernel */
+#define CONFIG_SETUP_MEMORY_TAGS	/* pass memory defs to kernel */
+#define CONFIG_INITRD_TAG		/* pass initrd param to kernel */
+#define CONFIG_SKIP_LOWLEVEL_INIT	/* U-Boot is loaded by a bootloader */
+#define CONFIG_BOARD_EARLY_INIT_f	/* call board_early_init_f() */
+#define CONFIG_DISPLAY_CPUINFO		/* display CPU Info at startup */
+
+/* setting board specific options */
+#ifdef CONFIG_PORTUXG20
+# define CONFIG_MACH_TYPE		MACH_TYPE_PORTUXG20
+# define CONFIG_MACB
+#else
+# define CONFIG_MACH_TYPE		MACH_TYPE_STAMP9G20
+#endif
+
+/*
+ * SDRAM: 1 bank, 64 MB, base address 0x20000000
+ * Already 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		(64 << 20)
+
+/*
+ * Perform a SDRAM Memtest from the start of SDRAM
+ * till the beginning of the U-Boot position in RAM.
+ */
+#define CONFIG_SYS_MEMTEST_START	CONFIG_SYS_SDRAM_BASE
+#define CONFIG_SYS_MEMTEST_END		(CONFIG_SYS_TEXT_BASE - 0x100000)
+
+/* Size of malloc() pool */
+#define CONFIG_SYS_MALLOC_LEN \
+	ROUND(3 * CONFIG_ENV_SIZE + (128 << 10), 0x1000)
+
+/*
+ * 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_SRAM1 + 0x1000 - GENERATED_GBL_DATA_SIZE)
+
+/* NAND flash settings */
+#define CONFIG_NAND_ATMEL
+#define CONFIG_SYS_NO_FLASH
+#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
+
+/* general purpose I/O */
+#define CONFIG_ATMEL_LEGACY		/* required until (g)pio is fixed */
+#define CONFIG_AT91_GPIO		/* enable the GPIO features */
+#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
+
+/* LED configuration */
+#define CONFIG_STATUS_LED
+#define CONFIG_BOARD_SPECIFIC_LED
+
+/* The LED PINs */
+#define CONFIG_RED_LED			AT91_PIN_PC5
+#define CONFIG_GREEN_LED		AT91_PIN_PC4
+#define CONFIG_YELLOW_LED		AT91_PIN_PC10
+
+#define STATUS_LED_RED			0
+#define STATUS_LED_GREEN		1
+#define STATUS_LED_YELLOW		2
+
+/* Red LED */
+#define STATUS_LED_BIT			STATUS_LED_RED
+#define STATUS_LED_STATE		STATUS_LED_OFF
+#define STATUS_LED_PERIOD		(CONFIG_SYS_HZ / 2)
+
+/* Green LED */
+#define STATUS_LED_BIT1			STATUS_LED_GREEN
+#define STATUS_LED_STATE1		STATUS_LED_ON
+#define STATUS_LED_PERIOD1		(CONFIG_SYS_HZ / 2)
+
+/* Yellow LED */
+#define STATUS_LED_BIT2			STATUS_LED_YELLOW
+#define STATUS_LED_STATE2		STATUS_LED_OFF
+#define STATUS_LED_PERIOD2		(CONFIG_SYS_HZ / 2)
+
+/* Boot status LED */
+#define STATUS_LED_BOOT			STATUS_LED_GREEN
+
+/*
+ * Ethernet configuration
+ *
+ * PortuxG20 has always ethernet but for Stamp9G20 you
+ * can enable it here if your baseboard features ethernet.
+ */
+
+/* #define CONFIG_MACB */
+
+#ifdef CONFIG_MACB
+# define CONFIG_RMII			/* use reduced MII inteface */
+# define CONFIG_NET_RETRY_COUNT	20      /* # of DHCP/BOOTP retries */
+
+/* BOOTP and DHCP options */
+# define CONFIG_BOOTP_BOOTFILESIZE
+# define CONFIG_BOOTP_BOOTPATH
+# define CONFIG_BOOTP_GATEWAY
+# define CONFIG_BOOTP_HOSTNAME
+# define CONFIG_NFSBOOTCOMMAND						\
+	"setenv autoload yes; setenv autoboot yes; "			\
+	"setenv bootargs ${basicargs} ${mtdparts} "			\
+	"root=/dev/nfs ip=dhcp nfsroot=${serverip}:/srv/nfs/rootfs; "	\
+	"dhcp"
+#endif /* CONFIG_MACB */
+
+/* Enable the watchdog */
+#define CONFIG_AT91SAM9_WATCHDOG
+#define CONFIG_HW_WATCHDOG
+
+/* USB configuration */
+#define CONFIG_USB_ATMEL
+#define CONFIG_USB_OHCI_NEW
+#define CONFIG_USB_STORAGE
+#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	"at91sam9260"
+#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS	2
+
+/* General Boot Parameter */
+#define CONFIG_BOOTDELAY		3
+#define CONFIG_BOOTCOMMAND		"run flashboot"
+#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_CMDLINE_EDITING
+
+/*
+ * RAM Memory address where to put the
+ * Linux Kernel befor starting.
+ */
+#define CONFIG_SYS_LOAD_ADDR		0x22000000
+
+/*
+ * The NAND Flash partitions:
+ * ==========================================
+ * 0x0000000-0x001ffff -> 128k, bootstrap
+ * 0x0020000-0x005ffff -> 256k, u-boot
+ * 0x0060000-0x007ffff -> 128k, env1
+ * 0x0080000-0x009ffff -> 128k, env2 (backup)
+ * 0x0100000-0x06fffff ->   6M, kernel
+ * 0x0700000-0x8000000 -> 121M, RootFS
+ */
+#define CONFIG_ENV_IS_IN_NAND
+#define CONFIG_ENV_OFFSET		((128 + 256) << 10)
+#define CONFIG_ENV_OFFSET_REDUND	((128 + 256 + 128) << 10)
+#define CONFIG_ENV_SIZE			(128 << 10)
+
+/*
+ * Predefined environment variables.
+ * Usefull to define some easy to use boot commands.
+ */
+#define	CONFIG_EXTRA_ENV_SETTINGS					\
+									\
+	"basicargs=console=ttyS0,115200\0"				\
+									\
+	"mtdparts=mtdparts=atmel_nand:128k(bootstrap)ro,"		\
+		"256k(uboot)ro,128k(env1)ro,"				\
+		"128k(env2)ro,6M(linux),-(root)rw\0"			\
+									\
+	"flashboot=setenv bootargs ${basicargs} ${mtdparts} "		\
+		"root=/dev/mtdblock5 rootfstype=jffs2; "		\
+		"nand read 0x22000000 0x100000 0x600000; "		\
+		"bootm 22000000\0"					\
+									\
+	"sdboot=setenv bootargs ${basicargs} ${mtdparts} "		\
+		"root=/dev/mmcblk0p1 rootwait; "			\
+		"nand read 0x22000000 0x100000 0x600000; "		\
+		"bootm 22000000"
+
+/* Command line & features configuration */
+#include <config_cmd_default.h>
+#undef CONFIG_CMD_FPGA
+#undef CONFIG_CMD_IMI
+#undef CONFIG_CMD_IMLS
+#undef CONFIG_CMD_LOADS
+
+#define CONFIG_CMD_NAND
+#define CONFIG_CMD_USB
+#define CONFIG_CMD_FAT
+#define CONFIG_CMD_LED
+
+#ifdef CONFIG_MACB
+# define CONFIG_CMD_PING
+# define CONFIG_CMD_DHCP
+#else
+# undef CONFIG_CMD_BOOTD
+# undef CONFIG_CMD_NET
+# undef CONFIG_CMD_NFS
+#endif /* CONFIG_MACB */
+
+#endif /* __CONFIG_H */