]> git.kernelconcepts.de Git - karo-tx-uboot.git/blobdiff - README
common: add a grepenv command
[karo-tx-uboot.git] / README
diff --git a/README b/README
index 37eda1156c59f67fc2b009cb9575c4b557564df0..157cc9e2b2cb185694a053703356427cf9d87aca 100644 (file)
--- a/README
+++ b/README
@@ -164,7 +164,7 @@ Directory Hierarchy:
   /blackfin            Files generic to Analog Devices Blackfin architecture
     /cpu               CPU specific files
     /lib               Architecture specific library files
-  /i386                        Files generic to i386 architecture
+  /x86                 Files generic to x86 architecture
     /cpu               CPU specific files
     /lib               Architecture specific library files
   /m68k                        Files generic to m68k architecture
@@ -319,6 +319,11 @@ The following options need to be configured:
                        CONFIG_SYS_PQ2FADS      - PQ2FADS-ZU or PQ2FADS-VR
                        CONFIG_SYS_8272ADS      - MPC8272ADS
 
+- Marvell Family Member
+               CONFIG_SYS_MVFS         - define it if you want to enable
+                                         multiple fs option at one time
+                                         for marvell soc family
+
 - MPC824X Family Member (if CONFIG_MPC824X is defined)
                Define exactly one of
                CONFIG_MPC8240, CONFIG_MPC8245
@@ -620,6 +625,7 @@ The following options need to be configured:
                CONFIG_CMD_BOOTD          bootd
                CONFIG_CMD_CACHE        * icache, dcache
                CONFIG_CMD_CONSOLE        coninfo
+               CONFIG_CMD_CRC32        * crc32
                CONFIG_CMD_DATE         * support for RTC, date/time...
                CONFIG_CMD_DHCP         * DHCP support
                CONFIG_CMD_DIAG         * Diagnostics
@@ -632,22 +638,27 @@ The following options need to be configured:
                CONFIG_CMD_EDITENV        edit env variable
                CONFIG_CMD_EEPROM       * EEPROM read/write support
                CONFIG_CMD_ELF          * bootelf, bootvx
+               CONFIG_CMD_EXPORTENV    * export the environment
                CONFIG_CMD_SAVEENV        saveenv
                CONFIG_CMD_FDC          * Floppy Disk Support
                CONFIG_CMD_FAT          * FAT partition support
                CONFIG_CMD_FDOS         * Dos diskette Support
                CONFIG_CMD_FLASH          flinfo, erase, protect
                CONFIG_CMD_FPGA           FPGA device initialization support
+               CONFIG_CMD_GO           * the 'go' command (exec code)
+               CONFIG_CMD_GREPENV      * search environment
                CONFIG_CMD_HWFLOW       * RTS/CTS hw flow control
                CONFIG_CMD_I2C          * I2C serial bus support
                CONFIG_CMD_IDE          * IDE harddisk support
                CONFIG_CMD_IMI            iminfo
                CONFIG_CMD_IMLS           List all found images
                CONFIG_CMD_IMMAP        * IMMR dump support
+               CONFIG_CMD_IMPORTENV    * import an environment
                CONFIG_CMD_IRQ          * irqinfo
                CONFIG_CMD_ITEST          Integer/string test of 2 values
                CONFIG_CMD_JFFS2        * JFFS2 Support
                CONFIG_CMD_KGDB         * kgdb
+               CONFIG_CMD_LDRINFO        ldrinfo (display Blackfin loader)
                CONFIG_CMD_LOADB          loadb
                CONFIG_CMD_LOADS          loads
                CONFIG_CMD_MD5SUM         print md5 message digest
@@ -738,6 +749,8 @@ The following options need to be configured:
                CONFIG_RTC_ISL1208      - use Intersil ISL1208 RTC
                CONFIG_RTC_MAX6900      - use Maxim, Inc. MAX6900 RTC
                CONFIG_SYS_RTC_DS1337_NOOSC     - Turn off the OSC output for DS1337
+               CONFIG_SYS_RV3029_TCR   - enable trickle charger on
+                                         RV3029 RTC.
 
                Note that if the RTC uses I2C, then the I2C interface
                must also be configured. See I2C Support, below.
@@ -1069,6 +1082,28 @@ The following options need to be configured:
                and 16bpp modes defined by CONFIG_VIDEO_SED13806_8BPP
                or CONFIG_VIDEO_SED13806_16BPP
 
+               CONFIG_FSL_DIU_FB
+               Enable the Freescale DIU video driver.  Reference boards for
+               SOCs that have a DIU should define this macro to enable DIU
+               support, and should also define these other macros:
+
+                       CONFIG_SYS_DIU_ADDR
+                       CONFIG_VIDEO
+                       CONFIG_CMD_BMP
+                       CONFIG_CFB_CONSOLE
+                       CONFIG_VIDEO_SW_CURSOR
+                       CONFIG_VGA_AS_SINGLE_DEVICE
+                       CONFIG_VIDEO_LOGO
+                       CONFIG_VIDEO_BMP_LOGO
+
+               The DIU driver will look for the 'monitor' environment variable,
+               and if defined, enable the DIU as a console during boot.  This
+               variable should be set to one of these values:
+
+                       '0'     Output video to the DVI connector
+                       '1'     Output video to the LVDS connector
+                       '2'     Output video to the Dual-Link LVDS connector
+
 - Keyboard Support:
                CONFIG_KEYBOARD
 
@@ -1969,6 +2004,28 @@ The following options need to be configured:
                example, some LED's) on your board. At the moment,
                the following checkpoints are implemented:
 
+- Standalone program support:
+               CONFIG_STANDALONE_LOAD_ADDR
+
+               This option allows to define board specific values
+               for the address where standalone program gets loaded,
+               thus overwriting the architecutre dependent default
+               settings.
+
+- Frame Buffer Address:
+       CONFIG_FB_ADDR
+
+       Define CONFIG_FB_ADDR if you want to use specific address for
+       frame buffer.
+       Then system will reserve the frame buffer address to defined address
+       instead of lcd_setmem (this function grab the memory for frame buffer
+       by panel's size).
+
+       Please see board_init_f function.
+
+       If you want this config option then,
+       please define it at your board config file
+
 Legacy uImage format:
 
   Arg  Where                   When
@@ -2306,7 +2363,10 @@ Configuration Settings:
                used) must be put below this limit, unless "bootm_low"
                enviroment variable is defined and non-zero. In such case
                all data for the Linux kernel must be between "bootm_low"
-               and "bootm_low" + CONFIG_SYS_BOOTMAPSZ.
+               and "bootm_low" + CONFIG_SYS_BOOTMAPSZ.  The environment
+               variable "bootm_mapsize" will override the value of
+               CONFIG_SYS_BOOTMAPSZ.  If CONFIG_SYS_BOOTMAPSZ is undefined,
+               then the value in "bootm_size" will be used instead.
 
 - CONFIG_SYS_BOOT_RAMDISK_HIGH:
                Enable initrd_high functionality.  If defined then the
@@ -2902,6 +2962,12 @@ Low Level (hardware related) configuration options:
                that is executed before the actual U-Boot. E.g. when
                compiling a NAND SPL.
 
+- CONFIG_USE_ARCH_MEMCPY
+  CONFIG_USE_ARCH_MEMSET
+               If these options are used a optimized version of memcpy/memset will
+               be used if available. These functions may be faster under some
+               conditions but may increase the binary size.
+
 Building the Software:
 ======================
 
@@ -3142,7 +3208,16 @@ List of environment variables (most likely not complete):
                  for use by the bootm command. See also "bootm_size"
                  environment variable. Address defined by "bootm_low" is
                  also the base of the initial memory mapping for the Linux
-                 kernel -- see the description of CONFIG_SYS_BOOTMAPSZ.
+                 kernel -- see the description of CONFIG_SYS_BOOTMAPSZ and
+                 bootm_mapsize.
+
+  bootm_mapsize        - Size of the initial memory mapping for the Linux kernel.
+                 This variable is given as a hexadecimal number and it
+                 defines the size of the memory region starting at base
+                 address bootm_low that is accessible by the Linux kernel
+                 during early boot.  If unset, CONFIG_SYS_BOOTMAPSZ is used
+                 as the default value if it is defined, and bootm_size is
+                 used otherwise.
 
   bootm_size   - Memory range available for image processing in the bootm
                  command can be restricted. This variable is given as