X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=README;h=b1b3e1788ec92d8ba088dab91175dfb1a44e2e26;hb=df637fa6da6e0f6b1d14d84f1afdd729bc2e2d1a;hp=14c83f4bb1796698e3a88b192a390395c51febeb;hpb=345be0b26734c560e8b33531ab21a1272179c5c3;p=u-boot diff --git a/README b/README index 14c83f4bb1..b1b3e1788e 100644 --- a/README +++ b/README @@ -201,7 +201,6 @@ Directory Hierarchy: /mpc5xx Files specific to Freescale MPC5xx CPUs /mpc5xxx Files specific to Freescale MPC5xxx CPUs /mpc8xx Files specific to Freescale MPC8xx CPUs - /mpc8220 Files specific to Freescale MPC8220 CPUs /mpc824x Files specific to Freescale MPC824x CPUs /mpc8260 Files specific to Freescale MPC8260 CPUs /mpc85xx Files specific to Freescale MPC85xx CPUs @@ -844,6 +843,7 @@ The following options need to be configured: CONFIG_CMD_FDOS * Dos diskette Support CONFIG_CMD_FLASH flinfo, erase, protect CONFIG_CMD_FPGA FPGA device initialization support + CONFIG_CMD_FUSE Device fuse support CONFIG_CMD_GETTIME * Get time since boot CONFIG_CMD_GO * the 'go' command (exec code) CONFIG_CMD_GREPENV * search environment @@ -898,6 +898,7 @@ The following options need to be configured: CONFIG_CMD_SF * Read/write/erase SPI NOR flash CONFIG_CMD_SHA1SUM print sha1 memory digest (requires CONFIG_CMD_MEMORY) + CONFIG_CMD_SOFTSWITCH * Soft switch setting command for BF60x CONFIG_CMD_SOURCE "source" command Support CONFIG_CMD_SPI * SPI serial bus support CONFIG_CMD_TFTPSRV * TFTP transfer in server mode @@ -930,6 +931,13 @@ The following options need to be configured: XXX - this list needs to get updated! +- Regular expression support: + CONFIG_REGEX + If this variable is defined, U-Boot is linked against + the SLRE (Super Light Regular Expression) library, + which adds regex support to some commands, as for + example "env grep" and "setexpr". + - Device tree: CONFIG_OF_CONTROL If this variable is defined, U-Boot will use a device tree @@ -2831,8 +2839,18 @@ FIT uImage format: CONFIG_SPL_LDSCRIPT LDSCRIPT for linking the SPL binary. + CONFIG_SPL_MAX_FOOTPRINT + Maximum size in memory allocated to the SPL, BSS included. + When defined, the linker checks that the actual memory + used by SPL from _start to __bss_end does not exceed it. + CONFIG_SPL_MAX_FOOTPRINT and CONFIG_SPL_BSS_MAX_SIZE + must not be both defined at the same time. + CONFIG_SPL_MAX_SIZE - Maximum binary size (text, data and rodata) of the SPL binary. + Maximum size of the SPL image (text, data, rodata, and + linker lists sections), BSS excluded. + When defined, the linker checks that the actual size does + not exceed it. CONFIG_SPL_TEXT_BASE TEXT_BASE for linking the SPL binary. @@ -2845,7 +2863,11 @@ FIT uImage format: Link address for the BSS within the SPL binary. CONFIG_SPL_BSS_MAX_SIZE - Maximum binary size of the BSS section of the SPL binary. + Maximum size in memory allocated to the SPL BSS. + When defined, the linker checks that the actual memory used + by SPL from __bss_start to __bss_end does not exceed it. + CONFIG_SPL_MAX_FOOTPRINT and CONFIG_SPL_BSS_MAX_SIZE + must not be both defined at the same time. CONFIG_SPL_STACK Adress of the start of the stack SPL will use @@ -2975,6 +2997,12 @@ FIT uImage format: use an arch-specific makefile fragment instead, for example if more than one image needs to be produced. + CONFIG_FIT_SPL_PRINT + Printing information about a FIT image adds quite a bit of + code to SPL. So this is normally disabled in SPL. Use this + option to re-enable it. This will affect the output of the + bootm command when booting a FIT image. + Modem Support: -------------- @@ -3234,6 +3262,15 @@ Configuration Settings: digits and dots. Recommended value: 45 (9..1) for 80 column displays, 15 (3..1) for 40 column displays. +- CONFIG_FLASH_VERIFY + If defined, the content of the flash (destination) is compared + against the source after the write operation. An error message + will be printed when the contents are not identical. + Please note that this option is useless in nearly all cases, + since such flash programming errors usually are detected earlier + while unprotecting/erasing/programming. Please only enable + this option if you really know what you are doing. + - CONFIG_SYS_RX_ETH_BUFFER: Defines the number of Ethernet receive buffers. On some Ethernet controllers it is recommended to set this value @@ -3309,6 +3346,10 @@ Configuration Settings: offset _bss_start_ofs from CONFIG_SYS_TEXT_BASE, rather than directly. You should not need to touch this setting. +- CONFIG_OMAP_PLATFORM_RESET_TIME_MAX_USEC (OMAP only) + This is set by OMAP boards for the max time that reset should + be asserted. See doc/README.omap-reset-time for details on how + the value can be calulated on a given board. The following definitions that deal with the placement and management of environment data (variable area); in general, we support the @@ -5027,7 +5068,7 @@ On some platforms, it's possible to boot Linux zImage. This is done using the "bootz" command. The syntax of "bootz" command is the same as the syntax of "bootm" command. -Note, defining the CONFIG_SUPPORT_INITRD_RAW allows user to supply +Note, defining the CONFIG_SUPPORT_RAW_INITRD allows user to supply kernel with raw initrd images. The syntax is slightly different, the address of the initrd must be augmented by it's size, in the following format: ":".