ppc4xx: Add support for AMCC 405EP Taihu board

Signed-off-by: John Otken <john@softadvances.com>

2 files changed, 481 insertions, 0 deletions

diff --git a/include/configs/taihu.h b/include/configs/taihu.h
new file mode 100644
index 0000000..61814a8
--- /dev/null
+++ b/include/configs/taihu.h
@@ -0,0 +1,473 @@
+/*
+ * (C) Copyright 2000-2005
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2005-2007
+ * Beijing UD Technology Co., Ltd., taihusupport@amcc.com
+ *
+ * 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
+
+
+#define CONFIG_405EP		1	/* this is a PPC405 CPU */
+#define CONFIG_4xx		1	/*  member of PPC4xx family */
+#define CONFIG_TAIHU	        1	/*  on a taihu board */
+
+#define CONFIG_BOARD_EARLY_INIT_F 1	/* call board_early_init_f */
+
+#define CONFIG_SYS_CLK_FREQ     33000000 /* external frequency to pll   */
+
+#define CONFIG_NO_SERIAL_EEPROM
+
+/*----------------------------------------------------------------------------*/
+#ifdef CONFIG_NO_SERIAL_EEPROM
+
+/*
+!-------------------------------------------------------------------------------
+! PLL settings for 333MHz CPU, 111MHz PLB/SDRAM, 55MHz EBC, 33MHz PCI,
+! assuming a 33MHz input clock to the 405EP from the C9531.
+!-------------------------------------------------------------------------------
+*/
+#define PLLMR0_333_111_55_37 (PLL_CPUDIV_1 | PLL_PLBDIV_3 |  \
+			      PLL_OPBDIV_2 | PLL_EXTBUSDIV_2 |  \
+			      PLL_MALDIV_1 | PLL_PCIDIV_3)
+#define PLLMR1_333_111_55_37 (PLL_FBKDIV_10  |  \
+			      PLL_FWDDIVA_3 | PLL_FWDDIVB_3 |  \
+			      PLL_TUNE_15_M_40 | PLL_TUNE_VCO_HI)
+#define PLLMR0_333_111_55_111 (PLL_CPUDIV_1 | PLL_PLBDIV_3 |  \
+			       PLL_OPBDIV_2 | PLL_EXTBUSDIV_2 |  \
+			       PLL_MALDIV_1 | PLL_PCIDIV_1)
+#define PLLMR1_333_111_55_111 (PLL_FBKDIV_10  |  \
+			       PLL_FWDDIVA_3 | PLL_FWDDIVB_3 |  \
+			       PLL_TUNE_15_M_40 | PLL_TUNE_VCO_HI)
+
+#define PLLMR0_DEFAULT		PLLMR0_333_111_55_37
+#define PLLMR1_DEFAULT		PLLMR1_333_111_55_37
+#define PLLMR0_DEFAULT_PCI66	PLLMR0_333_111_55_111
+#define PLLMR1_DEFAULT_PCI66	PLLMR1_333_111_55_111
+
+#endif
+/*----------------------------------------------------------------------------*/
+
+#define CFG_ENV_IS_IN_FLASH     1	/* use FLASH for environment vars */
+
+#define CONFIG_ENV_OVERWRITE 1
+#define CONFIG_PREBOOT	"echo;"	\
+	"echo Type \"run flash_nfs\" to mount root filesystem over NFS;" \
+	"echo"
+
+#undef	CONFIG_BOOTARGS
+#define CONFIG_EXTRA_ENV_SETTINGS					\
+	"bootfile=/tftpboot/taihu/uImage\0"				\
+	"rootpath=/opt/eldk/ppc_4xx\0"					\
+	"netdev=eth0\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"						\
+	"kernel_addr=FC000000\0"					\
+	"ramdisk_addr=FC180000\0"					\
+	"load=tftp 200000 /tftpboot/taihu/u-boot.bin\0"			\
+	"update=protect off FFFC0000 FFFFFFFF;era FFFC0000 FFFFFFFF;"	\
+		"cp.b 200000 FFFC0000 40000\0"				\
+	"upd=run load;run update\0"					\
+	""
+#define CONFIG_BOOTCOMMAND	"run flash_self"
+
+#if 0
+#define CONFIG_BOOTDELAY	-1	/* autoboot disabled		*/
+#else
+#define CONFIG_BOOTDELAY	5	/* autoboot after 5 seconds	*/
+#endif
+
+#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		0x14	/* PHY address			*/
+#define CONFIG_HAS_ETH1
+#define CONFIG_PHY1_ADDR	0x10	/* EMAC1 PHY address		*/
+#define CONFIG_NET_MULTI	1
+#define CFG_RX_ETH_BUFFER	16	/* Number of ethernet rx buffers & descriptors */
+#define CONFIG_PHY_RESET	1
+
+#define CONFIG_COMMANDS	       (CONFIG_CMD_DFL	| \
+				CFG_CMD_ASKENV	| \
+				CFG_CMD_CACHE	| \
+				CFG_CMD_DHCP	| \
+				CFG_CMD_EEPROM	| \
+				CFG_CMD_ELF	| \
+				CFG_CMD_I2C	| \
+				CFG_CMD_SPI	| \
+				CFG_CMD_IRQ	| \
+				CFG_CMD_MII	| \
+				CFG_CMD_NET	| \
+				CFG_CMD_PCI	| \
+				CFG_CMD_PING	| \
+				CFG_CMD_REGINFO	| \
+				CFG_CMD_SDRAM	)
+
+/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
+#include <cmd_confdefs.h>
+
+#undef CONFIG_WATCHDOG			/* watchdog disabled */
+
+#undef CONFIG_SPD_EEPROM		/* use SPD EEPROM for setup */
+#define CFG_SDRAM_SIZE_PER_BANK 0x04000000 /* 64MB */
+#define CFG_SDRAM_BANKS	        2
+
+/*
+ * SDRAM configuration (please see cpu/ppc/sdram.[ch])
+ */
+#define CONFIG_SDRAM_BANK0	1	/* init onboard SDRAM bank 0 */
+#define CONFIG_SDRAM_BANK1	1	/* init onboard SDRAM bank 1 */
+
+/* SDRAM timings used in datasheet */
+#define CFG_SDRAM_CL            3	/* CAS latency */
+#define CFG_SDRAM_tRP           20	/* PRECHARGE command period */
+#define CFG_SDRAM_tRC           66	/* ACTIVE-to-ACTIVE command period */
+#define CFG_SDRAM_tRCD          20	/* ACTIVE-to-READ delay */
+#define CFG_SDRAM_tRFC		66	/* Auto refresh period */
+
+/*
+ * 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
+
+#define CONFIG_BAUDRATE		115200
+
+#define CONFIG_UART1_CONSOLE	1
+
+
+/* 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 */
+
+/*-----------------------------------------------------------------------
+ * 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
+
+#define CFG_I2C_NOPROBES	{ 0x69 } /* avoid iprobe hangup (why?) */
+#define CFG_EEPROM_PAGE_WRITE_DELAY_MS	6 /* 24C02 requires 5ms delay */
+
+#if (CONFIG_COMMANDS & CFG_CMD_EEPROM)
+#define CFG_I2C_EEPROM_ADDR	0x50	/* I2C boot EEPROM (24C02W)	*/
+#define CFG_I2C_EEPROM_ADDR_LEN	1	/* Bytes of address		*/
+#endif
+
+
+#define CONFIG_SOFT_SPI
+#define SPI_SCL  spi_scl
+#define SPI_SDA  spi_sda
+#define SPI_READ spi_read()
+#define SPI_DELAY udelay(2)
+#ifndef __ASSEMBLY__
+void spi_scl(int);
+void spi_sda(int);
+unsigned char spi_read(void);
+#endif
+
+/* standard dtt sensor configuration */
+#define CONFIG_DTT_DS1775	1
+#define CONFIG_DTT_SENSORS	{ 0 }
+
+/*-----------------------------------------------------------------------
+ * 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_CLASSCODE       0x0600  /* PCI Class Code: bridge/host */
+#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  */
+#define CONFIG_EEPRO100		1
+
+/*-----------------------------------------------------------------------
+ * 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		0xFFE00000
+#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)
+
+/*
+ * 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 CFG_MAX_FLASH_BANKS	2	/* 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_ADDR0         0x555
+#define CFG_FLASH_ADDR1         0x2aa
+#define CFG_FLASH_WORD_SIZE     unsigned short
+
+#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		0x0ff8		/* Size of Environment vars */
+#define CFG_ENV_ADDR		\
+	(CFG_NVRAM_BASE_ADDR+CFG_NVRAM_SIZE-CFG_ENV_SIZE)	/* Env*/
+#endif
+
+/*-----------------------------------------------------------------------
+ * PPC405 GPIO Configuration
+ */
+#define CFG_440_GPIO_TABLE { /*				GPIO	Alternate1		*/	\
+{												\
+/* GPIO Core 0 */										\
+{ GPIO_BASE, GPIO_OUT, GPIO_SEL,  GPIO_OUT_NO_CHG }, /* GPIO0	PerBLast    SPI CS	*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO1	TS1E			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO2	TS2E			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO3	TS1O			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO4	TS2O			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO5	TS3			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO6	TS4			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO7	TS5			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO8	TS6			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO9	TrcClk			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO10	PerCS1			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO11	PerCS2			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO12	PerCS3			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO13	PerCS4			*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_SEL,  GPIO_OUT_NO_CHG }, /* GPIO14	PerAddr03   SPI SCLK	*/	\
+{ GPIO_BASE, GPIO_IN,  GPIO_SEL,  GPIO_OUT_NO_CHG }, /* GPIO15	PerAddr04   SPI DI	*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_SEL,  GPIO_OUT_NO_CHG }, /* GPIO16	PerAddr05   SPI DO	*/	\
+{ GPIO_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO17	IRQ0	    PCI INTA	*/	\
+{ GPIO_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO18	IRQ1	    PCI INTB	*/	\
+{ GPIO_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO19	IRQ2	    PCI INTC	*/	\
+{ GPIO_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO20	IRQ3	    PCI INTD	*/	\
+{ GPIO_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO21	IRQ4	    USB		*/	\
+{ GPIO_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO22	IRQ5	    EBC		*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_SEL,  GPIO_OUT_NO_CHG }, /* GPIO23	IRQ6	    unused	*/	\
+{ GPIO_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO24	UART0_DCD   UART1	*/	\
+{ GPIO_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO25	UART0_DSR		*/	\
+{ GPIO_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO26	UART0_RI		*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO27	UART0_DTR		*/	\
+{ GPIO_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO28	UART1_Rx    UART0 	*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_NO_CHG }, /* GPIO29	UART1_Tx		*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_SEL,  GPIO_OUT_NO_CHG }, /* GPIO30	RejectPkt0  User LED1	*/	\
+{ GPIO_BASE, GPIO_OUT, GPIO_SEL,  GPIO_OUT_NO_CHG }, /* GPIO31	RejectPkt1  User LED2	*/	\
+}												\
+}
+
+/*-----------------------------------------------------------------------
+ * Cache Configuration
+ */
+#define CFG_DCACHE_SIZE		16384	/* For IBM 405EP CPU */
+#define CFG_CACHELINE_SIZE	32
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+#define CFG_CACHELINE_SHIFT	5	/* log base 2 of the above value */
+#endif
+
+/*
+ * Init Memory Controller:
+ *
+ * BR0/1 and OR0/1 (FLASH)
+ */
+
+#define FLASH_BASE0_PRELIM CFG_FLASH_BASE /* FLASH bank #0 */
+#define FLASH_BASE1_PRELIM  0xFC000000	/* FLASH bank #1 */
+
+/*-----------------------------------------------------------------------
+ * Definitions for initial stack pointer and data area (in data cache)
+ */
+/* use on chip memory (OCM) for temperary stack until sdram is tested */
+#define CFG_TEMP_STACK_OCM        1
+
+/* On Chip Memory location */
+#define CFG_OCM_DATA_ADDR	0xF8000000
+#define CFG_OCM_DATA_SIZE	0x1000
+#define CFG_INIT_RAM_ADDR	CFG_OCM_DATA_ADDR /* inside of SDRAM		*/
+#define CFG_INIT_RAM_END	CFG_OCM_DATA_SIZE /* 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
+
+/*-----------------------------------------------------------------------
+ * External Bus Controller (EBC) Setup
+ */
+
+/* Memory Bank 0 (Flash/SRAM) initialization */
+#define CFG_EBC_PB0AP           0x03815600
+#define CFG_EBC_PB0CR           0xFFE3A000  /* BAS=0xFFE,BS=2MB,BU=R/W,BW=16bit */
+
+/* Memory Bank 1 (NVRAM/RTC) initialization */
+#define CFG_EBC_PB1AP           0x05815600
+#define CFG_EBC_PB1CR           0xFC0BA000  /* BAS=0xFc0,BS=32MB,BU=R/W,BW=16bit */
+
+/* Memory Bank 2 (USB device) initialization */
+#define CFG_EBC_PB2AP           0x03016600
+#define CFG_EBC_PB2CR           0x50018000 /* BAS=0x500,BS=1MB,BU=R/W,BW=8bit */
+
+/* Memory Bank 3 (LCM and D-flip-flop) initialization */
+#define CFG_EBC_PB3AP           0x158FF600
+#define CFG_EBC_PB3CR           0x50118000 /* BAS=0x501,BS=1MB,BU=R/W,BW=8bit */
+
+/* Memory Bank 4 (not install) initialization */
+#define CFG_EBC_PB4AP           0x158FF600
+#define CFG_EBC_PB4CR           0x5021A000
+
+/*-----------------------------------------------------------------------
+ * Definitions for GPIO setup (PPC405EP specific)
+ *
+ * GPIO0[0]     - External Bus Controller BLAST output
+ * GPIO0[1-9]   - Instruction trace outputs
+ * GPIO0[10-13] - External Bus Controller CS_1 - CS_4 outputs
+ * GPIO0[14-16] - External Bus Controller ABUS3-ABUS5 outputs
+ * GPIO0[17-23] - External Interrupts IRQ0 - IRQ6 inputs
+ * GPIO0[24-27] - UART0 control signal inputs/outputs
+ * GPIO0[28-29] - UART1 data signal input/output
+ * GPIO0[30-31] - EMAC0 and EMAC1 reject packet inputs
+ */
+#define CFG_GPIO0_OSRH	0x15555550	/* output select high/low */
+#define CFG_GPIO0_OSRL	0x00000110
+#define CFG_GPIO0_ISR1H	0x00000001	/* input select high/low */
+#define CFG_GPIO0_ISR1L	0x15545440
+#define CFG_GPIO0_TSRH	0x00000000	/* three-state select high/low */
+#define CFG_GPIO0_TSRL	0x00000000
+#define CFG_GPIO0_TCR	0xFFFE8117	/* three-state control */
+#define CFG_GPIO0_ODR	0x00000000	/* open drain */
+
+#define GPIO0		0		/* GPIO controller 0 */
+
+/* the GPIO macros in include/ppc405.h for High/Low registers are backwards */
+
+#define GPIOx_OSL	(GPIO0_OSRH-GPIO_BASE)
+#define GPIOx_TSL	(GPIO0_TSRH-GPIO_BASE)
+#define GPIOx_IS1L	(GPIO0_ISR1H-GPIO_BASE)
+#define GPIOx_IS2L	(GPIO0_ISR1H-GPIO_BASE)
+#define GPIOx_IS3L	(GPIO0_ISR1H-GPIO_BASE)
+
+#define GPIO_OS(x)	(x+GPIOx_OSL)	/* GPIO output select */
+#define GPIO_TS(x)	(x+GPIOx_TSL)	/* GPIO three-state select */
+#define GPIO_IS1(x)	(x+GPIOx_IS1L)	/* GPIO input select */
+#define GPIO_IS2(x)	(x+GPIOx_IS1L)
+#define GPIO_IS3(x)	(x+GPIOx_IS1L)
+
+#define CPLD_REG0_ADDR	0x50100000
+#define CPLD_REG1_ADDR	0x50100001
+/*
+ * 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 */
diff --git a/include/dtt.h b/include/dtt.h
index 842a761..2e8c690 100644
--- a/include/dtt.h
+++ b/include/dtt.h
@@ -29,6 +29,7 @@
 
 #if defined(CONFIG_DTT_LM75) || \
     defined(CONFIG_DTT_DS1621) || \
+    defined(CONFIG_DTT_DS1775) || \
     defined(CONFIG_DTT_LM81) || \
     defined(CONFIG_DTT_ADM1021)
 
@@ -78,6 +79,13 @@ extern int dtt_get_temp(int sensor);
 #define DTT_CONFIG		0xAC
 #endif
 
+#if defined(CONFIG_DTT_DS1775)
+#define DTT_READ_TEMP		0x0
+#define DTT_CONFIG		0x1
+#define DTT_TEMP_HYST		0x2
+#define DTT_TEMP_OS		0x3
+#endif
+
 #if defined(CONFIG_DTT_ADM1021)
 #define DTT_READ_LOC_VALUE	0x00
 #define DTT_READ_REM_VALUE	0x01