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README: white-space cleanup

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Signed-off-by: Wolfgang Denk <wd@denx.de>
This commit is contained in:
Wolfgang Denk 2011-10-26 10:21:21 +00:00
parent 7566832a88
commit c0f40859f9
1 changed files with 20 additions and 20 deletions
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@ -134,7 +134,7 @@ Additional fields (if present) indicate release candidates or bug fix
releases in "stable" maintenance trees. releases in "stable" maintenance trees.
Examples: Examples:
U-Boot v2009.11 - Release November 2009 U-Boot v2009.11 - Release November 2009
U-Boot v2009.11.1 - Release 1 in version November 2009 stable tree U-Boot v2009.11.1 - Release 1 in version November 2009 stable tree
U-Boot v2010.09-rc1 - Release candiate 1 for September 2010 release U-Boot v2010.09-rc1 - Release candiate 1 for September 2010 release
@ -769,7 +769,7 @@ The following options need to be configured:
CONFIG_CMD_NAND * NAND support CONFIG_CMD_NAND * NAND support
CONFIG_CMD_NET bootp, tftpboot, rarpboot CONFIG_CMD_NET bootp, tftpboot, rarpboot
CONFIG_CMD_PCA953X * PCA953x I2C gpio commands CONFIG_CMD_PCA953X * PCA953x I2C gpio commands
CONFIG_CMD_PCA953X_INFO * PCA953x I2C gpio info command CONFIG_CMD_PCA953X_INFO * PCA953x I2C gpio info command
CONFIG_CMD_PCI * pciinfo CONFIG_CMD_PCI * pciinfo
CONFIG_CMD_PCMCIA * PCMCIA support CONFIG_CMD_PCMCIA * PCMCIA support
CONFIG_CMD_PING * send ICMP ECHO_REQUEST to network CONFIG_CMD_PING * send ICMP ECHO_REQUEST to network
@ -1730,24 +1730,24 @@ The following options need to be configured:
CONFIG_I2C_MULTI_BUS CONFIG_I2C_MULTI_BUS
This option allows the use of multiple I2C buses, each of which This option allows the use of multiple I2C buses, each of which
must have a controller. At any point in time, only one bus is must have a controller. At any point in time, only one bus is
active. To switch to a different bus, use the 'i2c dev' command. active. To switch to a different bus, use the 'i2c dev' command.
Note that bus numbering is zero-based. Note that bus numbering is zero-based.
CONFIG_SYS_I2C_NOPROBES CONFIG_SYS_I2C_NOPROBES
This option specifies a list of I2C devices that will be skipped This option specifies a list of I2C devices that will be skipped
when the 'i2c probe' command is issued. If CONFIG_I2C_MULTI_BUS when the 'i2c probe' command is issued. If CONFIG_I2C_MULTI_BUS
is set, specify a list of bus-device pairs. Otherwise, specify is set, specify a list of bus-device pairs. Otherwise, specify
a 1D array of device addresses a 1D array of device addresses
e.g. e.g.
#undef CONFIG_I2C_MULTI_BUS #undef CONFIG_I2C_MULTI_BUS
#define CONFIG_SYS_I2C_NOPROBES {0x50,0x68} #define CONFIG_SYS_I2C_NOPROBES {0x50,0x68}
will skip addresses 0x50 and 0x68 on a board with one I2C bus will skip addresses 0x50 and 0x68 on a board with one I2C bus
#define CONFIG_I2C_MULTI_BUS #define CONFIG_I2C_MULTI_BUS
#define CONFIG_SYS_I2C_MULTI_NOPROBES {{0,0x50},{0,0x68},{1,0x54}} #define CONFIG_SYS_I2C_MULTI_NOPROBES {{0,0x50},{0,0x68},{1,0x54}}
will skip addresses 0x50 and 0x68 on bus 0 and address 0x54 on bus 1 will skip addresses 0x50 and 0x68 on bus 0 and address 0x54 on bus 1
@ -1866,7 +1866,7 @@ The following options need to be configured:
Enables a hardware SPI driver for general-purpose reads Enables a hardware SPI driver for general-purpose reads
and writes. As with CONFIG_SOFT_SPI, the board configuration and writes. As with CONFIG_SOFT_SPI, the board configuration
must define a list of chip-select function pointers. must define a list of chip-select function pointers.
Currently supported on some MPC8xxx processors. For an Currently supported on some MPC8xxx processors. For an
example, see include/configs/mpc8349emds.h. example, see include/configs/mpc8349emds.h.
CONFIG_MXC_SPI CONFIG_MXC_SPI
@ -2181,7 +2181,7 @@ Legacy uImage format:
13 common/image.c Start multifile image verification 13 common/image.c Start multifile image verification
14 common/image.c No initial ramdisk, no multifile, continue. 14 common/image.c No initial ramdisk, no multifile, continue.
15 arch/<arch>/lib/bootm.c All preparation done, transferring control to OS 15 arch/<arch>/lib/bootm.c All preparation done, transferring control to OS
-30 arch/powerpc/lib/board.c Fatal error, hang the system -30 arch/powerpc/lib/board.c Fatal error, hang the system
-31 post/post.c POST test failed, detected by post_output_backlog() -31 post/post.c POST test failed, detected by post_output_backlog()
@ -2545,7 +2545,7 @@ Configuration Settings:
used) must be put below this limit, unless "bootm_low" used) must be put below this limit, unless "bootm_low"
enviroment variable is defined and non-zero. In such case enviroment variable is defined and non-zero. In such case
all data for the Linux kernel must be between "bootm_low" all data for the Linux kernel must be between "bootm_low"
and "bootm_low" + CONFIG_SYS_BOOTMAPSZ. The environment and "bootm_low" + CONFIG_SYS_BOOTMAPSZ. The environment
variable "bootm_mapsize" will override the value of variable "bootm_mapsize" will override the value of
CONFIG_SYS_BOOTMAPSZ. If CONFIG_SYS_BOOTMAPSZ is undefined, CONFIG_SYS_BOOTMAPSZ. If CONFIG_SYS_BOOTMAPSZ is undefined,
then the value in "bootm_size" will be used instead. then the value in "bootm_size" will be used instead.
@ -2835,7 +2835,7 @@ to save the current settings.
This setting describes a second storage area of CONFIG_ENV_SIZE This setting describes a second storage area of CONFIG_ENV_SIZE
size used to hold a redundant copy of the environment data, so size used to hold a redundant copy of the environment data, so
that there is a valid backup copy in case there is a power failure that there is a valid backup copy in case there is a power failure
during a "saveenv" operation. CONFIG_ENV_OFFSET_RENDUND must be during a "saveenv" operation. CONFIG_ENV_OFFSET_RENDUND must be
aligned to an erase block boundary. aligned to an erase block boundary.
- CONFIG_ENV_RANGE (optional): - CONFIG_ENV_RANGE (optional):
@ -2929,7 +2929,7 @@ Low Level (hardware related) configuration options:
- CONFIG_SYS_CCSRBAR_PHYS: - CONFIG_SYS_CCSRBAR_PHYS:
Physical address of CCSR. CCSR can be relocated to a new Physical address of CCSR. CCSR can be relocated to a new
physical address, if desired. In this case, this macro should physical address, if desired. In this case, this macro should
be set to that address. Otherwise, it should be set to the be set to that address. Otherwise, it should be set to the
same value as CONFIG_SYS_CCSRBAR_DEFAULT. For example, CCSR same value as CONFIG_SYS_CCSRBAR_DEFAULT. For example, CCSR
is typically relocated on 36-bit builds. It is recommended is typically relocated on 36-bit builds. It is recommended
that this macro be defined via the _HIGH and _LOW macros: that this macro be defined via the _HIGH and _LOW macros:
@ -3461,7 +3461,7 @@ List of environment variables (most likely not complete):
kernel -- see the description of CONFIG_SYS_BOOTMAPSZ and kernel -- see the description of CONFIG_SYS_BOOTMAPSZ and
bootm_mapsize. bootm_mapsize.
bootm_mapsize - Size of the initial memory mapping for the Linux kernel. bootm_mapsize - Size of the initial memory mapping for the Linux kernel.
This variable is given as a hexadecimal number and it This variable is given as a hexadecimal number and it
defines the size of the memory region starting at base defines the size of the memory region starting at base
address bootm_low that is accessible by the Linux kernel address bootm_low that is accessible by the Linux kernel
@ -3615,12 +3615,12 @@ flash or offset in NAND flash.
boards currenlty use other variables for these purposes, and some boards currenlty use other variables for these purposes, and some
boards use these variables for other purposes. boards use these variables for other purposes.
Image File Name RAM Address Flash Location Image File Name RAM Address Flash Location
----- --------- ----------- -------------- ----- --------- ----------- --------------
u-boot u-boot u-boot_addr_r u-boot_addr u-boot u-boot u-boot_addr_r u-boot_addr
Linux kernel bootfile kernel_addr_r kernel_addr Linux kernel bootfile kernel_addr_r kernel_addr
device tree blob fdtfile fdt_addr_r fdt_addr device tree blob fdtfile fdt_addr_r fdt_addr
ramdisk ramdiskfile ramdisk_addr_r ramdisk_addr ramdisk ramdiskfile ramdisk_addr_r ramdisk_addr
The following environment variables may be used and automatically The following environment variables may be used and automatically
updated by the network boot commands ("bootp" and "rarpboot"), updated by the network boot commands ("bootp" and "rarpboot"),
@ -3735,7 +3735,7 @@ o If neither SROM nor the environment contain a MAC address, an error
is raised. is raised.
If Ethernet drivers implement the 'write_hwaddr' function, valid MAC addresses If Ethernet drivers implement the 'write_hwaddr' function, valid MAC addresses
will be programmed into hardware as part of the initialization process. This will be programmed into hardware as part of the initialization process. This
may be skipped by setting the appropriate 'ethmacskip' environment variable. may be skipped by setting the appropriate 'ethmacskip' environment variable.
The naming convention is as follows: The naming convention is as follows:
"ethmacskip" (=>eth0), "eth1macskip" (=>eth1) etc. "ethmacskip" (=>eth0), "eth1macskip" (=>eth1) etc.