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https://github.com/AsahiLinux/u-boot
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d873133f2b
This patch adds another build target for the AMCC Sequoia PPC440EPx eval board. This RAM-booting version is targeted for boards without NOR FLASH (NAND booting) which need a possibility to initially program their NAND FLASH. Using a JTAG debugger (e.g. BDI2000/3000) configured to setup the SDRAM, this debugger can load this RAM- booting image to the target address in SDRAM (in this case 0x1000000) and start it there. Then U-Boot's standard NAND commands can be used to program the NAND FLASH (e.g. "nand write ..."). Here the commands to load and start this image from the BDI2000: 440EPX>reset halt 440EPX>load 0x1000000 /tftpboot/sequoia/u-boot.bin 440EPX>go 0x1000000 Please note that this image automatically scans for an already initialized SDRAM TLB (detected by EPN=0). This TLB will not be cleared. This TLB doesn't need to be TLB #0, this RAM-booting version will detect it and preserve it. So booting via BDI2000 will work and booting with a complete different TLB init via U-Boot works as well. Signed-off-by: Stefan Roese <sr@denx.de>
286 lines
9.1 KiB
C
286 lines
9.1 KiB
C
/*
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* (C) Copyright 2008
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* Stefan Roese, DENX Software Engineering, sr@denx.de.
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*
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* Common configuration options for all AMCC boards
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#ifndef __AMCC_COMMON_H
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#define __AMCC_COMMON_H
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#define CONFIG_SYS_SDRAM_BASE 0x00000000 /* _must_ be 0 */
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#define CONFIG_SYS_MONITOR_BASE TEXT_BASE /* Start of U-Boot */
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#define CONFIG_SYS_MONITOR_LEN (0xFFFFFFFF - CONFIG_SYS_MONITOR_BASE + 1)
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#define CONFIG_SYS_MALLOC_LEN (1 << 20) /* Reserved for malloc */
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/*
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* UART
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*/
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#define CONFIG_BAUDRATE 115200
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#define CONFIG_SERIAL_MULTI
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#define CONFIG_SYS_BAUDRATE_TABLE \
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{300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400}
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/*
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* I2C
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*/
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#define CONFIG_HARD_I2C /* I2C with hardware support */
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#define CONFIG_SYS_I2C_SLAVE 0x7F
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/*
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* Ethernet/EMAC/PHY
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*/
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#define CONFIG_PPC4xx_EMAC
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#define CONFIG_MII /* MII PHY management */
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#define CONFIG_NET_MULTI
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#define CONFIG_NETCONSOLE /* include NetConsole support */
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#if defined(CONFIG_440)
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#define CONFIG_SYS_RX_ETH_BUFFER 32 /* number of eth rx buffers */
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#else
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#define CONFIG_SYS_RX_ETH_BUFFER 16 /* number of eth rx buffers */
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#endif
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/*
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* Commands
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*/
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#include <config_cmd_default.h>
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#define CONFIG_CMD_ASKENV
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#if defined(CONFIG_440)
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#define CONFIG_CMD_CACHE
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#endif
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#define CONFIG_CMD_DHCP
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#define CONFIG_CMD_DIAG
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#define CONFIG_CMD_EEPROM
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#define CONFIG_CMD_ELF
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#define CONFIG_CMD_I2C
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#define CONFIG_CMD_IRQ
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#define CONFIG_CMD_MII
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#define CONFIG_CMD_NET
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#define CONFIG_CMD_NFS
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#define CONFIG_CMD_PING
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#define CONFIG_CMD_REGINFO
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#if defined(CONFIG_SYS_RAMBOOT)
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/*
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* Disable NOR FLASH commands on RAM-booting version. One main reason for this
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* RAM-booting version is boards with NAND and without NOR. This image can
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* be used for initial NAND programming.
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*/
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#define CONFIG_SYS_NO_FLASH
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#undef CONFIG_CMD_FLASH
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#undef CONFIG_CMD_IMLS
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#endif
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/*
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* Miscellaneous configurable options
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*/
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#define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
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#define CONFIG_SYS_LONGHELP /* undef to save memory */
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#define CONFIG_SYS_PROMPT "=> " /* Monitor Command Prompt */
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#if defined(CONFIG_CMD_KGDB)
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#define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
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#else
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#define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
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#endif
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#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16)
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#define CONFIG_SYS_MAXARGS 16 /* max number of command args */
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#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */
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#define CONFIG_SYS_MEMTEST_START 0x0400000 /* memtest works on */
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#define CONFIG_SYS_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */
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#define CONFIG_SYS_LOAD_ADDR 0x100000 /* default load address */
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#define CONFIG_SYS_EXTBDINFO /* To use extended board_into (bd_t) */
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#define CONFIG_SYS_HZ 1000 /* decrementer freq: 1 ms ticks */
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#define CONFIG_CMDLINE_EDITING /* add command line history */
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#define CONFIG_AUTO_COMPLETE /* add autocompletion support */
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#define CONFIG_LOOPW /* enable loopw command */
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#define CONFIG_MX_CYCLIC /* enable mdc/mwc commands */
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#define CONFIG_ZERO_BOOTDELAY_CHECK /* check for keypress on bootdelay==0 */
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#define CONFIG_VERSION_VARIABLE /* include version env variable */
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#define CONFIG_SYS_CONSOLE_INFO_QUIET /* don't print console @ startup*/
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#define CONFIG_SYS_HUSH_PARSER /* Use the HUSH parser */
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#ifdef CONFIG_SYS_HUSH_PARSER
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#define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
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#endif
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#define CONFIG_LOADS_ECHO /* echo on for serial download */
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#define CONFIG_SYS_LOADS_BAUD_CHANGE /* allow baudrate change */
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/*
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* BOOTP options
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*/
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#define CONFIG_BOOTP_BOOTFILESIZE
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#define CONFIG_BOOTP_BOOTPATH
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#define CONFIG_BOOTP_GATEWAY
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#define CONFIG_BOOTP_HOSTNAME
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#define CONFIG_BOOTP_SUBNETMASK
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/*
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* For booting Linux, the board info and command line data
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* have to be in the first 8 MB of memory, since this is
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* the maximum mapped by the Linux kernel during initialization.
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*/
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#define CONFIG_SYS_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
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/*
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* Internal Definitions
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*/
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#if defined(CONFIG_CMD_KGDB)
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#define CONFIG_KGDB_BAUDRATE 230400 /* speed to run kgdb serial port*/
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#define CONFIG_KGDB_SER_INDEX 2 /* which serial port to use */
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#endif
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/*
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* Pass open firmware flat tree
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*/
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#define CONFIG_OF_LIBFDT
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#define CONFIG_OF_BOARD_SETUP
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/*
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* Booting and default environment
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*/
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#define CONFIG_PREBOOT "echo;" \
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"echo Type \"run flash_nfs\" to mount root filesystem over NFS;" \
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"echo"
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#define CONFIG_BOOTCOMMAND "run flash_self"
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/*
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* Only very few boards have default console not on ttyS0 (like Taishan)
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*/
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#if !defined(CONFIG_USE_TTY)
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#define CONFIG_USE_TTY ttyS0
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#endif
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/*
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* Only very few boards have default netdev not set to eth0 (like Arches)
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*/
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#if !defined(CONFIG_USE_NETDEV)
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#define CONFIG_USE_NETDEV eth0
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#endif
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/*
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* Only some 4xx PPC's are equipped with an FPU
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*/
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#if defined(CONFIG_440EP) || defined(CONFIG_440EPX) || \
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defined(CONFIG_460EX) || defined(CONFIG_460GT)
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#define CONFIG_AMCC_DEF_ENV_ROOTPATH "rootpath=/opt/eldk/ppc_4xxFP\0"
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#else
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#define CONFIG_AMCC_DEF_ENV_ROOTPATH "rootpath=/opt/eldk/ppc_4xx\0"
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#endif
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/*
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* Only some boards need to extend the bootargs by some additional
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* parameters (like Makalu)
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*/
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#if !defined(CONFIG_ADDMISC)
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#define CONFIG_ADDMISC "addmisc=setenv bootargs ${bootargs}\0"
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#endif
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#define xstr(s) str(s)
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#define str(s) #s
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/*
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* General common environment variables shared on all AMCC eval boards
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*/
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#define CONFIG_AMCC_DEF_ENV \
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"netdev=" xstr(CONFIG_USE_NETDEV) "\0" \
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"nfsargs=setenv bootargs root=/dev/nfs rw " \
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"nfsroot=${serverip}:${rootpath}\0" \
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"ramargs=setenv bootargs root=/dev/ram rw\0" \
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"addip=setenv bootargs ${bootargs} " \
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"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}" \
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":${hostname}:${netdev}:off panic=1\0" \
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"addtty=setenv bootargs ${bootargs}" \
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" console=" xstr(CONFIG_USE_TTY) ",${baudrate}\0" \
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CONFIG_ADDMISC \
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"initrd_high=30000000\0" \
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"kernel_addr_r=400000\0" \
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"fdt_addr_r=800000\0" \
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"ramdisk_addr_r=C00000\0" \
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"hostname=" xstr(CONFIG_HOSTNAME) "\0" \
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"bootfile=" xstr(CONFIG_HOSTNAME) "/uImage\0" \
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"ramdisk_file=" xstr(CONFIG_HOSTNAME) "/uRamdisk\0" \
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CONFIG_AMCC_DEF_ENV_ROOTPATH
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/*
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* Default environment for arch/powerpc booting
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* for boards that are ported to arch/powerpc
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*/
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#define CONFIG_AMCC_DEF_ENV_POWERPC \
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"flash_self=run ramargs addip addtty addmisc;" \
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"bootm ${kernel_addr} ${ramdisk_addr} ${fdt_addr}\0" \
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"flash_nfs=run nfsargs addip addtty addmisc;" \
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"bootm ${kernel_addr} - ${fdt_addr}\0" \
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"net_nfs=tftp ${kernel_addr_r} ${bootfile}; " \
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"tftp ${fdt_addr_r} ${fdt_file}; " \
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"run nfsargs addip addtty addmisc;" \
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"bootm ${kernel_addr_r} - ${fdt_addr_r}\0" \
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"net_self_load=tftp ${kernel_addr_r} ${bootfile};" \
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"tftp ${fdt_addr_r} ${fdt_file};" \
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"tftp ${ramdisk_addr_r} ${ramdisk_file};\0" \
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"net_self=run net_self_load;" \
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"run ramargs addip addtty addmisc;" \
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"bootm ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}\0" \
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"fdt_file=" xstr(CONFIG_HOSTNAME) "/" xstr(CONFIG_HOSTNAME) ".dtb\0"
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/*
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* Default environment for arch/ppc booting,
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* for boards that are not ported to arch/powerpc yet
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*/
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#define CONFIG_AMCC_DEF_ENV_PPC \
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"flash_self=run ramargs addip addtty addmisc;" \
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"bootm ${kernel_addr} ${ramdisk_addr}\0" \
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"flash_nfs=run nfsargs addip addtty addmisc;" \
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"bootm ${kernel_addr}\0" \
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"net_nfs=tftp ${kernel_addr_r} ${bootfile};" \
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"run nfsargs addip addtty addmisc;" \
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"bootm ${kernel_addr_r}\0"
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/*
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* Default environment for arch/ppc booting (old version),
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* for boards that are ported to arch/ppc and arch/powerpc
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*/
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#define CONFIG_AMCC_DEF_ENV_PPC_OLD \
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"flash_self_old=run ramargs addip addtty addmisc;" \
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"bootm ${kernel_addr} ${ramdisk_addr}\0" \
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"flash_nfs_old=run nfsargs addip addtty addmisc;" \
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"bootm ${kernel_addr}\0" \
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"net_nfs_old=tftp ${kernel_addr_r} ${bootfile};" \
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"run nfsargs addip addtty addmisc;" \
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"bootm ${kernel_addr_r}\0"
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#define CONFIG_AMCC_DEF_ENV_NOR_UPD \
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"load=tftp 200000 " xstr(CONFIG_HOSTNAME) "/u-boot.bin\0" \
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"update=protect off " xstr(CONFIG_SYS_MONITOR_BASE) " FFFFFFFF;" \
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"era " xstr(CONFIG_SYS_MONITOR_BASE) " FFFFFFFF;" \
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"cp.b ${fileaddr} " xstr(CONFIG_SYS_MONITOR_BASE) " ${filesize};" \
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"setenv filesize;saveenv\0" \
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"upd=run load update\0" \
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#define CONFIG_AMCC_DEF_ENV_NAND_UPD \
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"nload=tftp 200000 " xstr(CONFIG_HOSTNAME) "/u-boot-nand.bin\0" \
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"nupdate=nand erase 0 100000;nand write 200000 0 100000;" \
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"setenv filesize;saveenv\0" \
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"nupd=run nload nupdate\0"
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#endif /* __AMCC_COMMON_H */
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