diff options
Diffstat (limited to 'README')
| -rw-r--r-- | README | 28 |
1 files changed, 28 insertions, 0 deletions
@@ -616,6 +616,14 @@ The following options need to be configured: boot loader that has already initialized the UART. Define this variable to flush the UART at init time. + CONFIG_SYS_NS16550_BROKEN_TEMT + + 16550 UART set the Transmitter Empty (TEMT) Bit when all output + has finished and the transmitter is totally empty. U-Boot waits + for this bit to be set to initialize the serial console. On some + broken platforms this bit is not set in SPL making U-Boot to + hang while waiting for TEMT. Define this option to avoid it. + - Console Interface: Depending on board, define exactly one serial port @@ -849,6 +857,7 @@ The following options need to be configured: CONFIG_CMD_LOADS loads CONFIG_CMD_MD5SUM print md5 message digest (requires CONFIG_CMD_MEMORY and CONFIG_MD5) + CONFIG_CMD_MEMINFO * Display detailed memory information CONFIG_CMD_MEMORY md, mm, nm, mw, cp, cmp, crc, base, loop, loopw, mtest CONFIG_CMD_MISC Misc functions like sleep etc @@ -2378,6 +2387,15 @@ CBFS (Coreboot Filesystem) support run-time determined information about the hardware to the environment. These will be named board_name, board_rev. + CONFIG_DELAY_ENVIRONMENT + + Normally the environment is loaded when the board is + intialised so that it is available to U-Boot. This inhibits + that so that the environment is not available until + explicitly loaded later by U-Boot code. With CONFIG_OF_CONTROL + this is instead controlled by the value of + /config/load-environment. + - DataFlash Support: CONFIG_HAS_DATAFLASH @@ -3453,6 +3471,16 @@ use the "saveenv" command to store a valid environment. space for already greatly restricted images, including but not limited to NAND_SPL configurations. +- CONFIG_DISPLAY_BOARDINFO + Display information about the board that U-Boot is running on + when U-Boot starts up. The board function checkboard() is called + to do this. + +- CONFIG_DISPLAY_BOARDINFO_LATE + Similar to the previous option, but display this information + later, once stdio is running and output goes to the LCD, if + present. + Low Level (hardware related) configuration options: --------------------------------------------------- |