Wolfgang Denk
parent
7566832a88
commit
c0f40859f9
40
README
40
README
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@ -134,7 +134,7 @@ Additional fields (if present) indicate release candidates or bug fix
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releases in "stable" maintenance trees.
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Examples:
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U-Boot v2009.11 - Release November 2009
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U-Boot v2009.11 - Release November 2009
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U-Boot v2009.11.1 - Release 1 in version November 2009 stable tree
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U-Boot v2010.09-rc1 - Release candiate 1 for September 2010 release
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@ -769,7 +769,7 @@ The following options need to be configured:
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CONFIG_CMD_NAND * NAND support
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CONFIG_CMD_NET bootp, tftpboot, rarpboot
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CONFIG_CMD_PCA953X * PCA953x I2C gpio commands
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CONFIG_CMD_PCA953X_INFO * PCA953x I2C gpio info command
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CONFIG_CMD_PCA953X_INFO * PCA953x I2C gpio info command
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CONFIG_CMD_PCI * pciinfo
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CONFIG_CMD_PCMCIA * PCMCIA support
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CONFIG_CMD_PING * send ICMP ECHO_REQUEST to network
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@ -1730,24 +1730,24 @@ The following options need to be configured:
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CONFIG_I2C_MULTI_BUS
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This option allows the use of multiple I2C buses, each of which
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must have a controller. At any point in time, only one bus is
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active. To switch to a different bus, use the 'i2c dev' command.
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must have a controller. At any point in time, only one bus is
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active. To switch to a different bus, use the 'i2c dev' command.
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Note that bus numbering is zero-based.
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CONFIG_SYS_I2C_NOPROBES
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This option specifies a list of I2C devices that will be skipped
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when the 'i2c probe' command is issued. If CONFIG_I2C_MULTI_BUS
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when the 'i2c probe' command is issued. If CONFIG_I2C_MULTI_BUS
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is set, specify a list of bus-device pairs. Otherwise, specify
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a 1D array of device addresses
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e.g.
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#undef CONFIG_I2C_MULTI_BUS
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#define CONFIG_SYS_I2C_NOPROBES {0x50,0x68}
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#define CONFIG_SYS_I2C_NOPROBES {0x50,0x68}
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will skip addresses 0x50 and 0x68 on a board with one I2C bus
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#define CONFIG_I2C_MULTI_BUS
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#define CONFIG_I2C_MULTI_BUS
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#define CONFIG_SYS_I2C_MULTI_NOPROBES {{0,0x50},{0,0x68},{1,0x54}}
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will skip addresses 0x50 and 0x68 on bus 0 and address 0x54 on bus 1
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@ -1866,7 +1866,7 @@ The following options need to be configured:
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Enables a hardware SPI driver for general-purpose reads
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and writes. As with CONFIG_SOFT_SPI, the board configuration
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must define a list of chip-select function pointers.
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Currently supported on some MPC8xxx processors. For an
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Currently supported on some MPC8xxx processors. For an
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example, see include/configs/mpc8349emds.h.
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CONFIG_MXC_SPI
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@ -2181,7 +2181,7 @@ Legacy uImage format:
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13 common/image.c Start multifile image verification
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14 common/image.c No initial ramdisk, no multifile, continue.
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15 arch/<arch>/lib/bootm.c All preparation done, transferring control to OS
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15 arch/<arch>/lib/bootm.c All preparation done, transferring control to OS
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-30 arch/powerpc/lib/board.c Fatal error, hang the system
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-31 post/post.c POST test failed, detected by post_output_backlog()
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@ -2545,7 +2545,7 @@ Configuration Settings:
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used) must be put below this limit, unless "bootm_low"
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enviroment variable is defined and non-zero. In such case
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all data for the Linux kernel must be between "bootm_low"
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and "bootm_low" + CONFIG_SYS_BOOTMAPSZ. The environment
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and "bootm_low" + CONFIG_SYS_BOOTMAPSZ. The environment
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variable "bootm_mapsize" will override the value of
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CONFIG_SYS_BOOTMAPSZ. If CONFIG_SYS_BOOTMAPSZ is undefined,
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then the value in "bootm_size" will be used instead.
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@ -2835,7 +2835,7 @@ to save the current settings.
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This setting describes a second storage area of CONFIG_ENV_SIZE
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size used to hold a redundant copy of the environment data, so
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that there is a valid backup copy in case there is a power failure
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during a "saveenv" operation. CONFIG_ENV_OFFSET_RENDUND must be
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during a "saveenv" operation. CONFIG_ENV_OFFSET_RENDUND must be
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aligned to an erase block boundary.
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- CONFIG_ENV_RANGE (optional):
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@ -2929,7 +2929,7 @@ Low Level (hardware related) configuration options:
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- CONFIG_SYS_CCSRBAR_PHYS:
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Physical address of CCSR. CCSR can be relocated to a new
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physical address, if desired. In this case, this macro should
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be set to that address. Otherwise, it should be set to the
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be set to that address. Otherwise, it should be set to the
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same value as CONFIG_SYS_CCSRBAR_DEFAULT. For example, CCSR
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is typically relocated on 36-bit builds. It is recommended
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that this macro be defined via the _HIGH and _LOW macros:
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@ -3461,7 +3461,7 @@ List of environment variables (most likely not complete):
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kernel -- see the description of CONFIG_SYS_BOOTMAPSZ and
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bootm_mapsize.
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bootm_mapsize - Size of the initial memory mapping for the Linux kernel.
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bootm_mapsize - Size of the initial memory mapping for the Linux kernel.
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This variable is given as a hexadecimal number and it
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defines the size of the memory region starting at base
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address bootm_low that is accessible by the Linux kernel
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@ -3615,12 +3615,12 @@ flash or offset in NAND flash.
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boards currenlty use other variables for these purposes, and some
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boards use these variables for other purposes.
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Image File Name RAM Address Flash Location
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----- --------- ----------- --------------
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u-boot u-boot u-boot_addr_r u-boot_addr
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Linux kernel bootfile kernel_addr_r kernel_addr
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device tree blob fdtfile fdt_addr_r fdt_addr
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ramdisk ramdiskfile ramdisk_addr_r ramdisk_addr
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Image File Name RAM Address Flash Location
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----- --------- ----------- --------------
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u-boot u-boot u-boot_addr_r u-boot_addr
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Linux kernel bootfile kernel_addr_r kernel_addr
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device tree blob fdtfile fdt_addr_r fdt_addr
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ramdisk ramdiskfile ramdisk_addr_r ramdisk_addr
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The following environment variables may be used and automatically
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updated by the network boot commands ("bootp" and "rarpboot"),
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@ -3735,7 +3735,7 @@ o If neither SROM nor the environment contain a MAC address, an error
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is raised.
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If Ethernet drivers implement the 'write_hwaddr' function, valid MAC addresses
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will be programmed into hardware as part of the initialization process. This
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will be programmed into hardware as part of the initialization process. This
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may be skipped by setting the appropriate 'ethmacskip' environment variable.
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The naming convention is as follows:
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"ethmacskip" (=>eth0), "eth1macskip" (=>eth1) etc.
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