arm, at91: support for sam9260 based smartweb board

add support for the at91sam9260 based board smartweb from
siemens. SPL is used without serial support, as this
SoC has only 4k sram for running SPL. Here a U-Boot
bootlog:

RomBOOT
>

U-Boot 2015.07-rc2-00109-g4ae828c (Jun 15 2015 - 09:31:16 +0200)

CPU: AT91SAM9260
Crystal frequency:   18.432 MHz
CPU clock        :  198.656 MHz
Master clock     :   99.328 MHz
       Watchdog enabled
DRAM:  64 MiB
WARNING: Caches not enabled
NAND:  256 MiB
In:    serial
Out:   serial
Err:   serial
Net:   macb0
Hit any key to stop autoboot:  0
U-Boot>

Signed-off-by: Heiko Schocher <hs@denx.de>

1 files changed, 289 insertions, 0 deletions

diff --git a/include/configs/smartweb.h b/include/configs/smartweb.h
new file mode 100644
index 0000000000..e5aec33307
--- /dev/null
+++ b/include/configs/smartweb.h
@@ -0,0 +1,289 @@
+/*
+ * (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>
+ *
+ * (C) Copyright 2014
+ * Heiko Schocher <hs@denx.de>
+ * DENX Software Engineering GmbH
+ *
+ * Configuation settings for the smartweb.
+ *
+ * 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		0x23000000
+
+/* ARM asynchronous clock */
+#define CONFIG_SYS_AT91_SLOW_CLOCK	32768		/* slow clock xtal */
+#define CONFIG_SYS_AT91_MAIN_CLOCK	18432000	/* 18.432MHz crystal */
+
+/* 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 */
+# define CONFIG_MACH_TYPE		MACH_TYPE_SMARTWEB
+#define CONFIG_SYS_GENERIC_BOARD
+#define CONFIG_CMDLINE_EDITING
+#define CONFIG_AUTO_COMPLETE
+
+/* The LED PINs */
+#define CONFIG_RED_LED			AT91_PIN_PA9
+#define CONFIG_GREEN_LED		AT91_PIN_PA6
+
+/*
+ * 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)
+
+/* 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
+
+#define CONFIG_CMD_MTDPARTS
+#define CONFIG_MTD_DEVICE
+#define MTDIDS_NAME_STR		"atmel_nand"
+#define MTDIDS_DEFAULT		"nand0=" MTDIDS_NAME_STR
+#define MTDPARTS_DEFAULT	"mtdparts=" MTDIDS_NAME_STR ":" \
+					"128k(Bootstrap),"		\
+					"896k(U-Boot),"	\
+					"512k(ENV0),"	\
+					"512k(ENV1),"	\
+					"4M(Linux),"	\
+					"-(Root-FS)"
+
+/* 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
+
+/*
+ * Ethernet configuration
+ *
+ */
+#define CONFIG_MACB
+#define CONFIG_RMII			/* use reduced MII inteface */
+#define CONFIG_NET_RETRY_COUNT	20      /* # of DHCP/BOOTP retries */
+#define CONFIG_AT91_WANTS_COMMON_PHY
+
+/* 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"
+
+/* Enable the watchdog */
+#define CONFIG_AT91SAM9_WATCHDOG
+#if !defined(CONFIG_SPL_BUILD)
+#define CONFIG_HW_WATCHDOG
+#endif
+#define CONFIG_AT91_HW_WDT_TIMEOUT	15
+
+#if !defined(CONFIG_SPL_BUILD)
+/* USB configuration */
+#define CONFIG_USB_ATMEL
+#define CONFIG_USB_ATMEL_CLK_SEL_PLLB
+#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
+#endif
+
+/* General Boot Parameter */
+#define CONFIG_BOOTDELAY		3
+#define CONFIG_BOOTCOMMAND		"run flashboot"
+#define CONFIG_SYS_PROMPT		"U-Boot> "
+#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
+
+/*
+ * RAM Memory address where to put the
+ * Linux Kernel befor starting.
+ */
+#define CONFIG_SYS_LOAD_ADDR		0x22000000
+
+/*
+ * The NAND Flash partitions:
+ */
+#define CONFIG_ENV_IS_IN_NAND
+#define CONFIG_ENV_OFFSET		(0x100000)
+#define CONFIG_ENV_OFFSET_REDUND	(0x180000)
+#define CONFIG_ENV_RANGE		(0x80000)
+#define CONFIG_ENV_SIZE			(0x20000)
+
+/*
+ * Predefined environment variables.
+ * Usefull to define some easy to use boot commands.
+ */
+#define	CONFIG_EXTRA_ENV_SETTINGS					\
+									\
+	"basicargs=console=ttyS0,115200\0"				\
+									\
+	"mtdparts="MTDPARTS_DEFAULT"\0"
+
+/* Command line & features configuration */
+#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
+
+#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 */
+
+#if !defined(CONFIG_SPL_BUILD)
+/* Enable Device-Tree (FDT) support */
+#define CONFIG_OF_LIBFDT
+#define CONFIG_CMD_FDT
+#define CONFIG_FIT
+#endif
+
+#ifdef CONFIG_SPL_BUILD
+#define CONFIG_SYS_INIT_SP_ADDR		0x301000
+#define CONFIG_SPL_STACK_R
+#define CONFIG_SPL_STACK_R_ADDR		CONFIG_SYS_TEXT_BASE
+#else
+/*
+ * 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)
+#endif
+
+
+/* Defines for SPL */
+#define CONFIG_SPL_FRAMEWORK
+#define CONFIG_SPL_TEXT_BASE		0x0
+#define CONFIG_SPL_MAX_SIZE		(4 * 1024)
+
+#define CONFIG_SPL_BSS_START_ADDR	CONFIG_SYS_SDRAM_BASE
+#define CONFIG_SPL_BSS_MAX_SIZE		(16 * 1024)
+#define CONFIG_SYS_SPL_MALLOC_START     (CONFIG_SPL_BSS_START_ADDR + \
+					CONFIG_SPL_BSS_MAX_SIZE)
+#define CONFIG_SYS_SPL_MALLOC_SIZE      CONFIG_SYS_MALLOC_LEN
+#define CONFIG_SPL_LDSCRIPT	arch/arm/mach-at91/arm926ejs/u-boot-spl.lds
+
+#define CONFIG_SPL_LIBCOMMON_SUPPORT
+#define CONFIG_SPL_LIBGENERIC_SUPPORT
+
+#define CONFIG_SPL_BOARD_INIT
+#define CONFIG_SPL_GPIO_SUPPORT
+#define CONFIG_SYS_NAND_ENABLE_PIN_SPL	(2*32 + 14)
+#define CONFIG_SPL_NAND_SUPPORT
+#define CONFIG_SYS_USE_NANDFLASH	1
+#define CONFIG_SPL_NAND_DRIVERS
+#define CONFIG_SPL_NAND_BASE
+#define CONFIG_SPL_NAND_ECC
+#define CONFIG_SPL_NAND_RAW_ONLY
+#define CONFIG_SPL_NAND_SOFTECC
+#define CONFIG_SYS_NAND_U_BOOT_OFFS	0x20000
+#define CONFIG_SYS_NAND_U_BOOT_SIZE	0x80000
+#define	CONFIG_SYS_NAND_U_BOOT_START	CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_NAND_U_BOOT_DST	CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_NAND_5_ADDR_CYCLE
+
+#define CONFIG_SYS_NAND_SIZE		(256*1024*1024)
+#define CONFIG_SYS_NAND_PAGE_SIZE	2048
+#define CONFIG_SYS_NAND_BLOCK_SIZE	(128*1024)
+#define CONFIG_SYS_NAND_PAGE_COUNT	(CONFIG_SYS_NAND_BLOCK_SIZE / \
+					 CONFIG_SYS_NAND_PAGE_SIZE)
+#define CONFIG_SYS_NAND_BAD_BLOCK_POS	NAND_LARGE_BADBLOCK_POS
+#define CONFIG_SYS_NAND_ECCSIZE		256
+#define CONFIG_SYS_NAND_ECCBYTES	3
+#define CONFIG_SYS_NAND_OOBSIZE		64
+#define CONFIG_SYS_NAND_ECCPOS		{ 40, 41, 42, 43, 44, 45, 46, 47, \
+					  48, 49, 50, 51, 52, 53, 54, 55, \
+					  56, 57, 58, 59, 60, 61, 62, 63, }
+
+#define CONFIG_SPL_ATMEL_SIZE
+#define CONFIG_SYS_MASTER_CLOCK		(198656000/2)
+#define AT91_PLL_LOCK_TIMEOUT		1000000
+#define CONFIG_SYS_AT91_PLLA		0x2060bf09
+#define CONFIG_SYS_MCKR			0x100
+#define CONFIG_SYS_MCKR_CSS		(0x02 | CONFIG_SYS_MCKR)
+#define CONFIG_SYS_AT91_PLLB		0x10483f0e
+
+#if defined(CONFIG_SPL_BUILD)
+#define CONFIG_SYS_THUMB_BUILD
+#define CONFIG_SYS_ICACHE_OFF
+#define CONFIG_SYS_DCACHE_OFF
+#undef CONFIG_SPL_OS_BOOT		/* Not supported by existing map */
+#endif
+#endif /* __CONFIG_H */