ARM: Add support for S3C6400 based SMDK6400 board

SMDK6400 can only boot U-Boot from NAND-flash. This patch adds a nand_spl
driver for it too. The board can also boot from the NOR flash, but due to
hardware limitations it can only address 64KiB on it, which is not enough
for U-Boot. Based on the original sources by Samsung for U-Boot 1.1.6.

Signed-off-by: Guennadi Liakhovetski <lg@denx.de>

1 files changed, 308 insertions, 0 deletions

diff --git a/include/configs/smdk6400.h b/include/configs/smdk6400.h
new file mode 100644
index 0000000..6650ad2
--- /dev/null
+++ b/include/configs/smdk6400.h
@@ -0,0 +1,308 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ * Gary Jennejohn <gj@denx.de>
+ * David Mueller <d.mueller@elsoft.ch>
+ *
+ * (C) Copyright 2008
+ * Guennadi Liakhovetki, DENX Software Engineering, <lg@denx.de>
+ *
+ * Configuation settings for the SAMSUNG SMDK6400(mDirac-III) 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 __CONFIG_H
+#define __CONFIG_H
+
+/*
+ * High Level Configuration Options
+ * (easy to change)
+ */
+#define CONFIG_S3C6400		1	/* in a SAMSUNG S3C6400 SoC     */
+#define CONFIG_S3C64XX		1	/* in a SAMSUNG S3C64XX Family  */
+#define CONFIG_SMDK6400		1	/* on a SAMSUNG SMDK6400 Board  */
+
+#define CFG_SDRAM_BASE	0x50000000
+
+/* input clock of PLL: SMDK6400 has 12MHz input clock */
+#define CONFIG_SYS_CLK_FREQ	12000000
+
+#if !defined(CONFIG_NAND_SPL) && (TEXT_BASE >= 0xc0000000)
+#define CONFIG_ENABLE_MMU
+#endif
+
+#define CONFIG_MEMORY_UPPER_CODE
+
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_CMDLINE_TAG
+#define CONFIG_INITRD_TAG
+
+/*
+ * Architecture magic and machine type
+ */
+#define MACH_TYPE		1270
+
+#define CONFIG_DISPLAY_CPUINFO
+#define CONFIG_DISPLAY_BOARDINFO
+
+#undef CONFIG_SKIP_RELOCATE_UBOOT
+
+/*
+ * Size of malloc() pool
+ */
+#define CFG_MALLOC_LEN		(CFG_ENV_SIZE + 1024 * 1024)
+#define CFG_GBL_DATA_SIZE	128	/* size in bytes for initial data */
+
+/*
+ * Hardware drivers
+ */
+#define CONFIG_DRIVER_CS8900	1	/* we have a CS8900 on-board	*/
+#define CS8900_BASE	  	0x18800300
+#define CS8900_BUS16		1 	/* follow the Linux driver	*/
+
+/*
+ * select serial console configuration
+ */
+#define CONFIG_SERIAL1          1	/* we use SERIAL 1 on SMDK6400	*/
+
+#define CFG_HUSH_PARSER			/* use "hush" command parser	*/
+#ifdef CFG_HUSH_PARSER
+#define CFG_PROMPT_HUSH_PS2	"> "
+#endif
+
+#define CONFIG_CMDLINE_EDITING
+
+/* allow to overwrite serial and ethaddr */
+#define CONFIG_ENV_OVERWRITE
+
+#define CONFIG_BAUDRATE		115200
+
+/***********************************************************
+ * Command definition
+ ***********************************************************/
+#include <config_cmd_default.h>
+
+#define CONFIG_CMD_CACHE
+#define CONFIG_CMD_REGINFO
+#define CONFIG_CMD_LOADS
+#define CONFIG_CMD_LOADB
+#define CONFIG_CMD_ENV
+#define CONFIG_CMD_NAND
+#if defined(CONFIG_BOOT_ONENAND)
+#define CONFIG_CMD_ONENAND
+#endif
+#define CONFIG_CMD_PING
+#define CONFIG_CMD_ELF
+#define CONFIG_CMD_FAT
+#define CONFIG_CMD_EXT2
+
+#define CONFIG_BOOTDELAY	3
+
+#define CONFIG_ZERO_BOOTDELAY_CHECK
+
+#if (CONFIG_COMMANDS & CONFIG_CMD_KGDB)
+#define CONFIG_KGDB_BAUDRATE	115200	/* speed to run kgdb serial port */
+#define CONFIG_KGDB_SER_INDEX	1	/* which serial port to use	 */
+#endif
+
+/*
+ * Miscellaneous configurable options
+ */
+#define CFG_LONGHELP				/* undef to save memory	      */
+#define CFG_PROMPT		"SMDK6400 # "	/* Monitor Command Prompt     */
+#define CFG_CBSIZE		256		/* Console I/O Buffer Size    */
+#define CFG_PBSIZE		384		/* Print Buffer Size          */
+#define CFG_MAXARGS		16		/* max number of command args */
+#define CFG_BARGSIZE		CFG_CBSIZE	/* Boot Argument Buffer Size  */
+
+#define CFG_MEMTEST_START	CFG_SDRAM_BASE	/* memtest works on	      */
+#define CFG_MEMTEST_END		(CFG_SDRAM_BASE + 0x7e00000) /* 126MB in DRAM */
+
+#define CFG_LOAD_ADDR		CFG_SDRAM_BASE	/* default load address	*/
+
+#define CFG_HZ			1000
+
+/* valid baudrates */
+#define CFG_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }
+
+/*-----------------------------------------------------------------------
+ * Stack sizes
+ *
+ * The stack sizes are set up in start.S using the settings below
+ */
+#define CONFIG_STACKSIZE	0x40000		/* regular stack 256KB */
+
+/**********************************
+ Support Clock Settings
+ **********************************
+ Setting	SYNC	ASYNC
+ ----------------------------------
+ 667_133_66	 X	  O
+ 533_133_66	 O	  O
+ 400_133_66	 X	  O
+ 400_100_50	 O	  O
+ **********************************/
+
+/*#define CONFIG_CLK_667_133_66*/
+#define CONFIG_CLK_533_133_66
+/*
+#define CONFIG_CLK_400_100_50
+#define CONFIG_CLK_400_133_66
+#define CONFIG_SYNC_MODE
+*/
+
+/* SMDK6400 has 2 banks of DRAM, but we use only one in U-Boot */
+#define CONFIG_NR_DRAM_BANKS	1
+#define PHYS_SDRAM_1		CFG_SDRAM_BASE	/* SDRAM Bank #1	*/
+#define PHYS_SDRAM_1_SIZE	0x08000000	/* 128 MB in Bank #1	*/
+
+#define CFG_FLASH_BASE		0x10000000
+#define CFG_MONITOR_BASE	0x00000000
+
+/*-----------------------------------------------------------------------
+ * FLASH and environment organization
+ */
+#define CFG_MAX_FLASH_BANKS	1	/* max number of memory banks	*/
+/* AM29LV160B has 35 sectors, AM29LV800B - 19 */
+#define CFG_MAX_FLASH_SECT	40
+
+#define CONFIG_AMD_LV800
+#define CFG_FLASH_CFI		1	/* Use CFI parameters (needed?) */
+/* Use drivers/cfi_flash.c, even though the flash is not CFI-compliant	*/
+#define CFG_FLASH_CFI_DRIVER	1
+#define CFG_FLASH_CFI_WIDTH	FLASH_CFI_16BIT
+#define CONFIG_FLASH_CFI_LEGACY
+#define CFG_FLASH_LEGACY_512Kx16
+
+/* timeout values are in ticks */
+#define CFG_FLASH_ERASE_TOUT	(5 * CFG_HZ) /* Timeout for Flash Erase	*/
+#define CFG_FLASH_WRITE_TOUT	(5 * CFG_HZ) /* Timeout for Flash Write	*/
+
+#define CFG_ENV_SIZE		0x4000	/* Total Size of Environment Sector */
+
+/*
+ * SMDK6400 board specific data
+ */
+
+#define CONFIG_IDENT_STRING	" for SMDK6400"
+
+/* base address for uboot */
+#define CFG_PHY_UBOOT_BASE	(CFG_SDRAM_BASE + 0x07e00000)
+/* total memory available to uboot */
+#define CFG_UBOOT_SIZE		(1024 * 1024)
+
+#ifdef CONFIG_ENABLE_MMU
+#define CFG_MAPPED_RAM_BASE	0xc0000000
+#define CONFIG_BOOTCOMMAND	"nand read 0xc0018000 0x60000 0x1c0000;" \
+				"bootm 0xc0018000"
+#else
+#define CFG_MAPPED_RAM_BASE	CFG_SDRAM_BASE
+#define CONFIG_BOOTCOMMAND	"nand read 0x50018000 0x60000 0x1c0000;" \
+				"bootm 0x50018000"
+#endif
+
+/* NAND U-Boot load and start address */
+#define CFG_UBOOT_BASE		(CFG_MAPPED_RAM_BASE + 0x07e00000)
+
+#define CFG_ENV_OFFSET		0x0040000
+
+/* NAND configuration */
+#define CFG_MAX_NAND_DEVICE	1
+#define CFG_NAND_BASE		0x70200010
+#define NAND_MAX_CHIPS		1
+#define CFG_S3C_NAND_HWECC
+
+#define CFG_NAND_SKIP_BAD_DOT_I	1  /* ".i" read skips bad blocks	      */
+#define CFG_NAND_WP		1
+#define CFG_NAND_YAFFS_WRITE	1  /* support yaffs write		      */
+#define CFG_NAND_BBT_2NDPAGE	1  /* bad-block markers in 1st and 2nd pages  */
+
+#define CFG_NAND_U_BOOT_DST	CFG_PHY_UBOOT_BASE	/* NUB load-addr      */
+#define CFG_NAND_U_BOOT_START	CFG_NAND_U_BOOT_DST	/* NUB start-addr     */
+
+#define CFG_NAND_U_BOOT_OFFS	(4 * 1024)	/* Offset to RAM U-Boot image */
+#define CFG_NAND_U_BOOT_SIZE	(252 * 1024)	/* Size of RAM U-Boot image   */
+
+/* NAND chip page size		*/
+#define CFG_NAND_PAGE_SIZE	2048
+/* NAND chip block size		*/
+#define CFG_NAND_BLOCK_SIZE	(128 * 1024)
+/* NAND chip page per block count  */
+#define CFG_NAND_PAGE_COUNT	64
+/* Location of the bad-block label */
+#define CFG_NAND_BAD_BLOCK_POS	0
+/* Extra address cycle for > 128MiB */
+#define CFG_NAND_5_ADDR_CYCLE
+
+/* Size of the block protected by one OOB (Spare Area in Samsung terminology) */
+#define CFG_NAND_ECCSIZE	CFG_NAND_PAGE_SIZE
+/* Number of ECC bytes per OOB - S3C6400 calculates 4 bytes ECC in 1-bit mode */
+#define CFG_NAND_ECCBYTES	4
+/* Number of ECC-blocks per NAND page */
+#define CFG_NAND_ECCSTEPS	(CFG_NAND_PAGE_SIZE / CFG_NAND_ECCSIZE)
+/* Size of a single OOB region */
+#define CFG_NAND_OOBSIZE	64
+/* Number of ECC bytes per page */
+#define CFG_NAND_ECCTOTAL	(CFG_NAND_ECCBYTES * CFG_NAND_ECCSTEPS)
+/* ECC byte positions */
+#define CFG_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}
+
+/* Boot configuration (define only one of next 3) */
+#define CONFIG_BOOT_NAND
+/* None of these are currently implemented. Left from the original Samsung
+ * version for reference
+#define CONFIG_BOOT_NOR
+#define CONFIG_BOOT_MOVINAND
+#define CONFIG_BOOT_ONENAND
+*/
+
+#define CONFIG_NAND
+#define CONFIG_NAND_S3C64XX
+/* Unimplemented or unsupported. See comment above.
+#define CONFIG_ONENAND
+#define CONFIG_MOVINAND
+*/
+
+/* Settings as above boot configuration */
+#define CFG_ENV_IS_IN_NAND
+#define CONFIG_BOOTARGS		"console=ttySAC,115200"
+#define CONFIG_EXTRA_ENV_SETTINGS "bootargs=" CONFIG_BOOTARGS
+
+#if !defined(CONFIG_ENABLE_MMU)
+#define CONFIG_CMD_USB			1
+#define CONFIG_USB_OHCI_NEW		1
+#define CFG_USB_OHCI_REGS_BASE		0x74300000
+#define CFG_USB_OHCI_SLOT_NAME		"s3c6400"
+#define CFG_USB_OHCI_MAX_ROOT_PORTS	3
+#define CFG_USB_OHCI_CPU_INIT		1
+#define LITTLEENDIAN			1	/* used by usb_ohci.c	*/
+
+#define CONFIG_USB_STORAGE	1
+#endif
+#define CONFIG_DOS_PARTITION	1
+
+#if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_ENABLE_MMU)
+# error "usb_ohci.c is currently broken with MMU enabled."
+#endif
+
+#endif	/* __CONFIG_H */