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upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/include/configs/pdnb3.h

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/*
* (C) Copyright 2006-2007
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
* Configuation settings for the PDNB3 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_IXP425 1 /* This is an IXP425 CPU */
#define CONFIG_PDNB3 1 /* on an PDNB3 board */
#define CONFIG_MACH_TYPE 1002
#define CONFIG_DISPLAY_CPUINFO 1 /* display cpu info (and speed) */
#define CONFIG_DISPLAY_BOARDINFO 1 /* display board info */
/*
* Ethernet
*/
#define CONFIG_IXP4XX_NPE 1 /* include IXP4xx NPE support */
#define CONFIG_PHY_ADDR 16 /* NPE0 PHY address */
#define CONFIG_HAS_ETH1
#define CONFIG_PHY1_ADDR 18 /* NPE1 PHY address */
#define CONFIG_MII 1 /* MII PHY management */
#define CONFIG_SYS_RX_ETH_BUFFER 16 /* Number of ethernet rx buffers & descriptors */
/*
* Misc configuration options
*/
#define CONFIG_BOOTCOUNT_LIMIT /* support for bootcount limit */
#define CONFIG_SYS_BOOTCOUNT_ADDR 0x60003000 /* inside qmrg sram */
#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */
#define CONFIG_SETUP_MEMORY_TAGS 1
#define CONFIG_INITRD_TAG 1
/*
* Size of malloc() pool
*/
#define CONFIG_SYS_MALLOC_LEN (1 << 20)
/* allow to overwrite serial and ethaddr */
#define CONFIG_ENV_OVERWRITE
#define CONFIG_IXP_SERIAL
#define CONFIG_BAUDRATE 115200
#define CONFIG_SYS_IXP425_CONSOLE IXP425_UART1 /* we use UART1 for console */
/*
* BOOTP options
*/
#define CONFIG_BOOTP_BOOTFILESIZE
#define CONFIG_BOOTP_BOOTPATH
#define CONFIG_BOOTP_GATEWAY
#define CONFIG_BOOTP_HOSTNAME
/*
* Command line configuration.
*/
#include <config_cmd_default.h>
#define CONFIG_CMD_DHCP
#define CONFIG_CMD_DATE
#define CONFIG_CMD_NET
#define CONFIG_CMD_MII
#define CONFIG_CMD_I2C
#define CONFIG_CMD_ELF
#define CONFIG_CMD_PING
#if !defined(CONFIG_SCPU)
#define CONFIG_CMD_NAND
#endif
#define CONFIG_ZERO_BOOTDELAY_CHECK /* check for keypress on bootdelay==0 */
#define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
/*
* Miscellaneous configurable options
*/
#define CONFIG_SYS_LONGHELP /* undef to save memory */
#define CONFIG_SYS_PROMPT "=> " /* Monitor Command Prompt */
#define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */
#define CONFIG_SYS_MAXARGS 16 /* max number of command args */
#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */
#define CONFIG_SYS_MEMTEST_START 0x00400000 /* memtest works on */
#define CONFIG_SYS_MEMTEST_END 0x00800000 /* 4 ... 8 MB in DRAM */
#define CONFIG_SYS_LOAD_ADDR 0x00010000 /* default load address */
#define CONFIG_IXP425_TIMER_CLK 66666666
#define CONFIG_SYS_HZ 1000 /* decrementer freq: 1 ms ticks */
/*
* Stack sizes
*
* The stack sizes are set up in start.S using the settings below
*/
#define CONFIG_STACKSIZE (128*1024) /* regular stack */
#ifdef CONFIG_USE_IRQ
#define CONFIG_STACKSIZE_IRQ (4*1024) /* IRQ stack */
#define CONFIG_STACKSIZE_FIQ (4*1024) /* FIQ stack */
#endif
/***************************************************************
* Platform/Board specific defines start here.
***************************************************************/
/*-----------------------------------------------------------------------
* Default configuration (environment varibles...)
*----------------------------------------------------------------------*/
#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=pdnb3\0" \
"nfsargs=setenv bootargs root=/dev/nfs rw " \
"nfsroot=${serverip}:${rootpath}\0" \
"ramargs=setenv bootargs root=/dev/ram rw\0" \
"addip=setenv bootargs ${bootargs} ethaddr=${ethaddr} " \
"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}" \
":${hostname}:${netdev}:off panic=1\0" \
"addtty=setenv bootargs ${bootargs} console=ttyS0,${baudrate} " \
"mtdparts=${mtdparts}\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/buildroot\0" \
"bootfile=/tftpboot/netbox/uImage\0" \
"kernel_addr=50080000\0" \
"ramdisk_addr=50200000\0" \
"load=tftp 100000 /tftpboot/netbox/u-boot.bin\0" \
"update=protect off 50000000 5007dfff;era 50000000 5007dfff;" \
"cp.b 100000 50000000 ${filesize};" \
"setenv filesize;saveenv\0" \
"upd=run load update\0" \
"ipaddr=10.0.0.233\0" \
"serverip=10.0.0.152\0" \
"netmask=255.255.0.0\0" \
"ethaddr=c6:6f:13:36:f3:81\0" \
"eth1addr=c6:6f:13:36:f3:82\0" \
"mtdparts=IXP4XX-Flash.0:504k@0(uboot),4k@504k(env)," \
"4k@508k(renv)\0" \
""
#define CONFIG_BOOTCOMMAND "run net_nfs"
/*
* Physical Memory Map
*/
#define CONFIG_NR_DRAM_BANKS 1 /* we have 1 bank of DRAM */
#define PHYS_SDRAM_1 0x00000000 /* SDRAM Bank #1 */
#define PHYS_SDRAM_1_SIZE 0x02000000 /* 32 MB */
#define CONFIG_SYS_TEXT_BASE 0x50000000
#define CONFIG_SYS_FLASH_BASE 0x50000000
#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
#if defined(CONFIG_SCPU)
#define CONFIG_SYS_MONITOR_LEN (384 << 10) /* Reserve 512 kB for Monitor */
#else
#define CONFIG_SYS_MONITOR_LEN (504 << 10) /* Reserve 512 kB for Monitor */
#endif
/*
* Expansion bus settings
*/
#if defined(CONFIG_SCPU)
#define CONFIG_SYS_EXP_CS0 0x94d23C42 /* 8bit, max size */
#else
#define CONFIG_SYS_EXP_CS0 0x94913C43 /* 8bit, max size */
#endif
#define CONFIG_SYS_EXP_CS1 0x85000043 /* 8bit, 512bytes */
/*
* SDRAM settings
*/
#define CONFIG_SYS_SDR_CONFIG 0x18
#define CONFIG_SYS_SDR_MODE_CONFIG 0x1
#define CONFIG_SYS_SDRAM_REFRESH_CNT 0x81a
/*
* FLASH and environment organization
*/
#if defined(CONFIG_SCPU)
#define CONFIG_SYS_FLASH_CFI /* The flash is CFI compatible */
#define CONFIG_FLASH_CFI_DRIVER /* Use common CFI driver */
#define CONFIG_SYS_FLASH_CFI_WIDTH FLASH_CFI_16BIT /* no byte writes on IXP4xx */
#endif
#define FLASH_BASE0_PRELIM CONFIG_SYS_FLASH_BASE /* FLASH bank #0 */
#define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */
#define CONFIG_SYS_MAX_FLASH_SECT 256 /* max number of sectors on one chip */
#define CONFIG_SYS_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */
#define CONFIG_SYS_FLASH_WRITE_TOUT 1000 /* Timeout for Flash Write (in ms) */
#define CONFIG_SYS_FLASH_WORD_SIZE unsigned char /* flash word size (width) */
#define CONFIG_SYS_FLASH_ADDR0 0x5555 /* 1st address for flash config cycles */
#define CONFIG_SYS_FLASH_ADDR1 0x2AAA /* 2nd address for flash config cycles */
/*
* The following defines are added for buggy IOP480 byte interface.
* All other boards should use the standard values (CPCI405 etc.)
*/
#define CONFIG_SYS_FLASH_READ0 0x0000 /* 0 is standard */
#define CONFIG_SYS_FLASH_READ1 0x0001 /* 1 is standard */
#define CONFIG_SYS_FLASH_READ2 0x0002 /* 2 is standard */
#define CONFIG_SYS_FLASH_EMPTY_INFO /* print 'E' for empty sector on flinfo */
#define CONFIG_ENV_IS_IN_FLASH 1
#define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN)
#if defined(CONFIG_SCPU)
/* no redundant environment on SCPU */
#define CONFIG_ENV_SECT_SIZE 0x20000 /* size of one complete sector */
#define CONFIG_ENV_SIZE 0x4000 /* Total Size of Environment Sector */
#else
#define CONFIG_ENV_SECT_SIZE 0x1000 /* size of one complete sector */
#define CONFIG_ENV_SIZE 0x1000 /* Total Size of Environment Sector */
/* Address and size of Redundant Environment Sector */
#define CONFIG_ENV_ADDR_REDUND (CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE)
#define CONFIG_ENV_SIZE_REDUND (CONFIG_ENV_SIZE)
#endif
#if !defined(CONFIG_SCPU)
/*
* NAND-FLASH stuff
*/
#define CONFIG_SYS_MAX_NAND_DEVICE 1
#define CONFIG_SYS_NAND_BASE 0x51000000 /* NAND FLASH Base Address */
#endif
/*
* GPIO settings
*/
/* FPGA program pin configuration */
#define CONFIG_SYS_GPIO_PRG 12 /* FPGA program pin (cpu output)*/
#define CONFIG_SYS_GPIO_CLK 10 /* FPGA clk pin (cpu output) */
#define CONFIG_SYS_GPIO_DATA 14 /* FPGA data pin (cpu output) */
#define CONFIG_SYS_GPIO_INIT 13 /* FPGA init pin (cpu input) */
#define CONFIG_SYS_GPIO_DONE 11 /* FPGA done pin (cpu input) */
/* other GPIO's */
#define CONFIG_SYS_GPIO_RESTORE_INT 0
#define CONFIG_SYS_GPIO_RESTART_INT 1
#define CONFIG_SYS_GPIO_SYS_RUNNING 2
#define CONFIG_SYS_GPIO_PCI_INTA 3
#define CONFIG_SYS_GPIO_PCI_INTB 4
#define CONFIG_SYS_GPIO_I2C_SCL 6
#define CONFIG_SYS_GPIO_I2C_SDA 7
#define CONFIG_SYS_GPIO_FPGA_RESET 9
#define CONFIG_SYS_GPIO_CLK_33M 15
/*
* I2C stuff
*/
/* enable I2C and select the hardware/software driver */
#undef CONFIG_HARD_I2C /* I2C with hardware support */
#define CONFIG_SOFT_I2C 1 /* I2C bit-banged */
#define CONFIG_SYS_I2C_SPEED 83000 /* 83 kHz is supposed to work */
#define CONFIG_SYS_I2C_SLAVE 0xFE
/*
* Software (bit-bang) I2C driver configuration
*/
#define PB_SCL (1 << CONFIG_SYS_GPIO_I2C_SCL)
#define PB_SDA (1 << CONFIG_SYS_GPIO_I2C_SDA)
#define I2C_INIT GPIO_OUTPUT_ENABLE(CONFIG_SYS_GPIO_I2C_SCL)
#define I2C_ACTIVE GPIO_OUTPUT_ENABLE(CONFIG_SYS_GPIO_I2C_SDA)
#define I2C_TRISTATE GPIO_OUTPUT_DISABLE(CONFIG_SYS_GPIO_I2C_SDA)
#define I2C_READ ((*IXP425_GPIO_GPINR & PB_SDA) != 0)
#define I2C_SDA(bit) if (bit) GPIO_OUTPUT_SET(CONFIG_SYS_GPIO_I2C_SDA); \
else GPIO_OUTPUT_CLEAR(CONFIG_SYS_GPIO_I2C_SDA)
#define I2C_SCL(bit) if (bit) GPIO_OUTPUT_SET(CONFIG_SYS_GPIO_I2C_SCL); \
else GPIO_OUTPUT_CLEAR(CONFIG_SYS_GPIO_I2C_SCL)
#define I2C_DELAY udelay(3) /* 1/4 I2C clock duration */
/*
* I2C RTC
*/
#if 0 /* test-only */
#define CONFIG_RTC_DS1340 1
#define CONFIG_SYS_I2C_RTC_ADDR 0x68
#else
/* M41T11 Serial Access Timekeeper(R) SRAM */
#define CONFIG_RTC_M41T11 1
#define CONFIG_SYS_I2C_RTC_ADDR 0x68
#define CONFIG_SYS_M41T11_BASE_YEAR 1900 /* play along with the linux driver */
#endif
/*
* Spartan3 FPGA configuration support
*/
#define CONFIG_SYS_FPGA_MAX_SIZE 700*1024 /* 700kByte for XC3S500E */
#define CONFIG_SYS_FPGA_PRG (1 << CONFIG_SYS_GPIO_PRG) /* FPGA program pin (cpu output)*/
#define CONFIG_SYS_FPGA_CLK (1 << CONFIG_SYS_GPIO_CLK) /* FPGA clk pin (cpu output) */
#define CONFIG_SYS_FPGA_DATA (1 << CONFIG_SYS_GPIO_DATA) /* FPGA data pin (cpu output) */
#define CONFIG_SYS_FPGA_INIT (1 << CONFIG_SYS_GPIO_INIT) /* FPGA init pin (cpu input) */
#define CONFIG_SYS_FPGA_DONE (1 << CONFIG_SYS_GPIO_DONE) /* FPGA done pin (cpu input) */
/*
* Cache Configuration
*/
#define CONFIG_SYS_CACHELINE_SIZE 32
/* additions for new relocation code, must be added to all boards */
#define CONFIG_SYS_SDRAM_BASE 0x00000000
#define CONFIG_SYS_INIT_SP_ADDR \
(CONFIG_SYS_SDRAM_BASE + 0x1000 - GENERATED_GBL_DATA_SIZE)
#endif /* __CONFIG_H */