Major cleanup for AMCC PPC4xx eval boards.

Patch by Stefan Roese, 01 Aug 2005

1 files changed, 334 insertions, 0 deletions

diff --git a/include/configs/walnut.h b/include/configs/walnut.h
new file mode 100644
index 0000000..ac5b530
--- /dev/null
+++ b/include/configs/walnut.h
@@ -0,0 +1,334 @@
+/*
+ * (C) Copyright 2000-2005
+ * Stefan Roese, DENX Software Engineering, sr@denx.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
+ */
+
+/*
+ * board/config.h - configuration options, board specific
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/*
+ * High Level Configuration Options
+ * (easy to change)
+ */
+
+#define CONFIG_405GP		1	/* This is a PPC405 CPU		*/
+#define CONFIG_4xx		1	/* ...member of PPC4xx family   */
+#define CONFIG_WALNUT	        1	/* ...on a WALNUT board	        */
+                                   	/* ...and on a SYCAMORE board   */
+
+#define CONFIG_BOARD_EARLY_INIT_F 1	/* Call board_early_init_f	*/
+
+#define CONFIG_SYS_CLK_FREQ     33333333 /* external frequency to pll   */
+
+#define CONFIG_PREBOOT	"echo;"	\
+	"echo Type \"run flash_nfs\" to mount root filesystem over NFS;" \
+	"echo"
+
+#undef	CONFIG_BOOTARGS
+
+#define	CONFIG_EXTRA_ENV_SETTINGS					\
+	"netdev=eth0\0"							\
+	"hostname=walnut\0"						\
+	"nfsargs=setenv bootargs root=/dev/nfs rw "			\
+		"nfsroot=$(serverip):$(rootpath)\0"			\
+	"ramargs=setenv bootargs root=/dev/ram rw\0"			\
+	"addip=setenv bootargs $(bootargs) "				\
+		"ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask)"	\
+		":$(hostname):$(netdev):off panic=1\0"			\
+	"addtty=setenv bootargs $(bootargs) console=ttyS0,$(baudrate)\0"\
+	"flash_nfs=run nfsargs addip addtty;"				\
+		"bootm $(kernel_addr)\0"				\
+	"flash_self=run ramargs addip addtty;"				\
+		"bootm $(kernel_addr) $(ramdisk_addr)\0"		\
+	"net_nfs=tftp 200000 $(bootfile);run nfsargs addip addtty;"     \
+	        "bootm\0"						\
+	"rootpath=/opt/eldk/ppc_4xx\0"					\
+	"bootfile=/tftpboot/walnut/uImage\0"				\
+	"kernel_addr=fff80000\0"					\
+	"ramdisk_addr=fff80000\0"					\
+	"load=tftp 100000 /tftpboot/walnut/u-boot.bin\0"		\
+	"update=protect off fffc0000 ffffffff;era fffc0000 ffffffff;"	\
+		"cp.b 100000 fffc0000 40000;"			        \
+		"setenv filesize;saveenv\0"				\
+	"upd=run load;run update\0"					\
+	""
+#define CONFIG_BOOTCOMMAND	"run net_nfs"
+
+#if 0
+#define CONFIG_BOOTDELAY	-1	/* autoboot disabled		*/
+#else
+#define CONFIG_BOOTDELAY	5	/* autoboot after 5 seconds	*/
+#endif
+
+#define CONFIG_BAUDRATE		115200
+
+#define CONFIG_LOADS_ECHO	1	/* echo on for serial download	*/
+#define CFG_LOADS_BAUD_CHANGE	1	/* allow baudrate change	*/
+
+#define CONFIG_MII		1	/* MII PHY management		*/
+#define	CONFIG_PHY_ADDR		1	/* PHY address			*/
+
+#define CONFIG_RTC_DS174x	1	/* use DS1743 RTC in Walnut	*/
+
+#define CONFIG_COMMANDS	       (CONFIG_CMD_DFL	| \
+				CFG_CMD_ASKENV	| \
+				CFG_CMD_DATE	| \
+				CFG_CMD_DHCP	| \
+				CFG_CMD_DIAG	| \
+				CFG_CMD_ELF	| \
+				CFG_CMD_I2C	| \
+				CFG_CMD_IRQ	| \
+				CFG_CMD_MII	| \
+				CFG_CMD_NET	| \
+				CFG_CMD_NFS	| \
+				CFG_CMD_PCI	| \
+				CFG_CMD_PING	| \
+				CFG_CMD_REGINFO	| \
+				CFG_CMD_SDRAM	| \
+				CFG_CMD_SNTP	)
+
+/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
+#include <cmd_confdefs.h>
+
+#undef CONFIG_WATCHDOG			/* watchdog disabled		*/
+
+#define CONFIG_SPD_EEPROM      1       /* use SPD EEPROM for setup    */
+
+/*
+ * Miscellaneous configurable options
+ */
+#define CFG_LONGHELP			/* undef to save memory		*/
+#define CFG_PROMPT	"=> "		/* Monitor Command Prompt	*/
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+#define	CFG_CBSIZE	1024		/* Console I/O Buffer Size	*/
+#else
+#define	CFG_CBSIZE	256		/* Console I/O Buffer Size	*/
+#endif
+#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* 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	0x0400000	/* memtest works on	*/
+#define CFG_MEMTEST_END		0x0C00000	/* 4 ... 12 MB in DRAM	*/
+
+/*
+ * If CFG_EXT_SERIAL_CLOCK, then the UART divisor is 1.
+ * If CFG_405_UART_ERRATA_59, then UART divisor is 31.
+ * Otherwise, UART divisor is determined by CPU Clock and CFG_BASE_BAUD value.
+ * The Linux BASE_BAUD define should match this configuration.
+ *    baseBaud = cpuClock/(uartDivisor*16)
+ * If CFG_405_UART_ERRATA_59 and 200MHz CPU clock,
+ * set Linux BASE_BAUD to 403200.
+ */
+#undef	CONFIG_SERIAL_SOFTWARE_FIFO
+#undef  CFG_EXT_SERIAL_CLOCK           /* external serial clock */
+#undef  CFG_405_UART_ERRATA_59         /* 405GP/CR Rev. D silicon */
+#define CFG_BASE_BAUD       691200
+
+/* The following table includes the supported baudrates */
+#define CFG_BAUDRATE_TABLE  \
+    {300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400}
+
+#define CFG_LOAD_ADDR		0x100000	/* default load address */
+#define CFG_EXTBDINFO		1	/* To use extended board_into (bd_t) */
+
+#define	CFG_HZ		1000		/* decrementer freq: 1 ms ticks	*/
+
+#define CONFIG_AUTO_COMPLETE	1       /* add autocompletion support   */
+#define CONFIG_LOOPW            1       /* enable loopw command         */
+#define CONFIG_ZERO_BOOTDELAY_CHECK	/* check for keypress on bootdelay==0 */
+#define CONFIG_VERSION_VARIABLE 1	/* include version env variable */
+
+#define CFG_RX_ETH_BUFFER	16	/* use 16 rx buffer on 405 emac */
+
+/*-----------------------------------------------------------------------
+ * I2C stuff
+ *-----------------------------------------------------------------------
+ */
+#define CONFIG_HARD_I2C		1	/* I2C with hardware support	*/
+#undef  CONFIG_SOFT_I2C			/* I2C bit-banged		*/
+#define CFG_I2C_SPEED		400000	/* I2C speed and slave address	*/
+#define CFG_I2C_SLAVE		0x7F
+
+/*-----------------------------------------------------------------------
+ * PCI stuff
+ *-----------------------------------------------------------------------
+ */
+#define PCI_HOST_ADAPTER 0              /* configure ar pci adapter     */
+#define PCI_HOST_FORCE  1               /* configure as pci host        */
+#define PCI_HOST_AUTO   2               /* detected via arbiter enable  */
+
+#define CONFIG_PCI			/* include pci support	        */
+#define CONFIG_PCI_HOST	PCI_HOST_FORCE  /* select pci host function     */
+#define CONFIG_PCI_PNP			/* do pci plug-and-play         */
+					/* resource configuration       */
+#define CONFIG_PCI_SCAN_SHOW		/* show pci devices on startup	*/
+
+#define CFG_PCI_SUBSYS_VENDORID 0x10e8	/* AMCC */
+#define CFG_PCI_SUBSYS_DEVICEID 0xcafe	/* Whatever */
+#define CFG_PCI_PTM1LA  0x00000000      /* point to sdram               */
+#define CFG_PCI_PTM1MS  0x80000001      /* 2GB, enable hard-wired to 1  */
+#define CFG_PCI_PTM1PCI 0x00000000      /* Host: use this pci address   */
+#define CFG_PCI_PTM2LA  0x00000000      /* disabled                     */
+#define CFG_PCI_PTM2MS  0x00000000      /* disabled                     */
+#define CFG_PCI_PTM2PCI 0x04000000      /* Host: use this pci address   */
+
+/*-----------------------------------------------------------------------
+ * Start addresses for the final memory configuration
+ * (Set up by the startup code)
+ * Please note that CFG_SDRAM_BASE _must_ start at 0
+ */
+#define CFG_SDRAM_BASE		0x00000000
+#define CFG_FLASH_BASE		0xFFF80000
+#define CFG_MONITOR_LEN		(256 * 1024)	/* Reserve 256 kB for Monitor	*/
+#define CFG_MALLOC_LEN		(128 * 1024)	/* Reserve 128 kB for malloc()	*/
+#define CFG_MONITOR_BASE	(-CFG_MONITOR_LEN)
+
+/*
+ * Define here the location of the environment variables (FLASH or NVRAM).
+ * Note: DENX encourages to use redundant environment in FLASH. NVRAM is only
+ *       supported for backward compatibility.
+ */
+#if 1
+#define CFG_ENV_IS_IN_FLASH     1	/* use FLASH for environment vars	*/
+#else
+#define CFG_ENV_IS_IN_NVRAM	1	/* use NVRAM for environment vars	*/
+#endif
+
+/*
+ * For booting Linux, the board info and command line data
+ * have to be in the first 8 MB of memory, since this is
+ * the maximum mapped by the Linux kernel during initialization.
+ */
+#define CFG_BOOTMAPSZ		(8 << 20)	/* Initial Memory map for Linux */
+
+/*-----------------------------------------------------------------------
+ * FLASH organization
+ */
+#define FLASH_BASE0_PRELIM	CFG_FLASH_BASE	/* FLASH bank #0	        */
+#define FLASH_BASE1_PRELIM	0	        /* FLASH bank #1	        */
+
+#define CFG_MAX_FLASH_BANKS	1	/* max number of memory banks		*/
+#define CFG_MAX_FLASH_SECT	256	/* max number of sectors on one chip	*/
+
+#define CFG_FLASH_ERASE_TOUT	120000	/* Timeout for Flash Erase (in ms)	*/
+#define CFG_FLASH_WRITE_TOUT	500	/* Timeout for Flash Write (in ms)	*/
+
+#define CFG_FLASH_EMPTY_INFO		/* print 'E' for empty sector on flinfo */
+
+#define CFG_FLASH_ADDR0         0x5555
+#define CFG_FLASH_ADDR1         0x2aaa
+#define CFG_FLASH_WORD_SIZE     unsigned char
+
+#ifdef CFG_ENV_IS_IN_FLASH
+#define CFG_ENV_SECT_SIZE	0x10000 	/* size of one complete sector	*/
+#define CFG_ENV_ADDR		(CFG_MONITOR_BASE-CFG_ENV_SECT_SIZE)
+#define	CFG_ENV_SIZE		0x4000	/* Total Size of Environment Sector	*/
+
+/* Address and size of Redundant Environment Sector	*/
+#define CFG_ENV_ADDR_REDUND	(CFG_ENV_ADDR-CFG_ENV_SECT_SIZE)
+#define CFG_ENV_SIZE_REDUND	(CFG_ENV_SIZE)
+#endif /* CFG_ENV_IS_IN_FLASH */
+
+/*-----------------------------------------------------------------------
+ * NVRAM organization
+ */
+#define CFG_NVRAM_BASE_ADDR	0xf0000000	/* NVRAM base address	*/
+#define CFG_NVRAM_SIZE		0x1ff8		/* NVRAM size	*/
+
+#ifdef CFG_ENV_IS_IN_NVRAM
+#define CFG_ENV_SIZE		0x1000		/* Size of Environment vars	*/
+#define CFG_ENV_ADDR		\
+	(CFG_NVRAM_BASE_ADDR+CFG_NVRAM_SIZE-CFG_ENV_SIZE)	/* Env	*/
+#endif
+
+/*-----------------------------------------------------------------------
+ * Cache Configuration
+ */
+#define CFG_DCACHE_SIZE		16384	/* For IBM 405 CPUs, older 405 ppc's	*/
+					/* have only 8kB, 16kB is save here	*/
+#define CFG_CACHELINE_SIZE	32	/* ...			*/
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+#define CFG_CACHELINE_SHIFT	5	/* log base 2 of the above value	*/
+#endif
+
+/*-----------------------------------------------------------------------
+ * External Bus Controller (EBC) Setup
+ */
+
+/* Memory Bank 0 (Flash Bank 0) initialization					*/
+#define CFG_EBC_PB0AP		0x9B015480
+#define CFG_EBC_PB0CR		0xFFF18000  /* BAS=0xFFF,BS=1MB,BU=R/W,BW=8bit  */
+
+#define CFG_EBC_PB1AP		0x02815480
+#define CFG_EBC_PB1CR		0xF0018000  /* BAS=0xF00,BS=1MB,BU=R/W,BW=8bit  */
+
+#define CFG_EBC_PB2AP		0x04815A80
+#define CFG_EBC_PB2CR		0xF0118000  /* BAS=0xF01,BS=1MB,BU=R/W,BW=8bit  */
+
+#define CFG_EBC_PB3AP		0x01815280
+#define CFG_EBC_PB3CR		0xF0218000  /* BAS=0xF02,BS=1MB,BU=R/W,BW=8bit  */
+
+#define CFG_EBC_PB7AP		0x01815280
+#define CFG_EBC_PB7CR		0xF0318000  /* BAS=0xF03,BS=1MB,BU=R/W,BW=8bit  */
+
+/*-----------------------------------------------------------------------
+ * External peripheral base address
+ *-----------------------------------------------------------------------
+ */
+#define	CFG_KEY_REG_BASE_ADDR	0xF0100000
+#define	CFG_IR_REG_BASE_ADDR	0xF0200000
+#define	CFG_FPGA_REG_BASE_ADDR	0xF0300000
+
+/*-----------------------------------------------------------------------
+ * Definitions for initial stack pointer and data area
+ */
+#define CFG_INIT_DCACHE_CS      4       /* use cs # 4 for data cache memory    */
+
+#define CFG_INIT_RAM_ADDR       0x40000000  /* inside of SDRAM                     */
+#define CFG_INIT_RAM_END        0x2000  /* End of used area in RAM             */
+#define CFG_GBL_DATA_SIZE      128  /* size in bytes reserved for initial data */
+#define CFG_GBL_DATA_OFFSET    (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
+#define CFG_INIT_SP_OFFSET      CFG_GBL_DATA_OFFSET
+
+/*-----------------------------------------------------------------------
+ * Definitions for Serial Presence Detect EEPROM address
+ * (to get SDRAM settings)
+ */
+#define SPD_EEPROM_ADDRESS      0x50
+
+/*
+ * Internal Definitions
+ *
+ * Boot Flags
+ */
+#define BOOTFLAG_COLD	0x01		/* Normal Power-On: Boot from FLASH	*/
+#define BOOTFLAG_WARM	0x02		/* Software reboot			*/
+
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+#define CONFIG_KGDB_BAUDRATE	230400	/* speed to run kgdb serial port */
+#define CONFIG_KGDB_SER_INDEX	2	/* which serial port to use */
+#endif
+#endif	/* __CONFIG_H */