diff options
Diffstat (limited to 'README')
| -rw-r--r-- | README | 55 |
1 files changed, 36 insertions, 19 deletions
@@ -164,6 +164,7 @@ Directory Hierarchy: - lib_mips Files generic to MIPS architecture - lib_nios Files generic to NIOS architecture - lib_ppc Files generic to PowerPC architecture +- libfdt Library files to support flattened device trees - net Networking code - post Power On Self Test - rtc Real Time Clock drivers @@ -430,12 +431,23 @@ The following options need to be configured: expect it to be in bytes, others in MB. Define CONFIG_MEMSIZE_IN_BYTES to make it in bytes. - CONFIG_OF_FLAT_TREE + CONFIG_OF_LIBFDT / CONFIG_OF_FLAT_TREE New kernel versions are expecting firmware settings to be - passed using flat open firmware trees. - The environment variable "disable_of", when set, disables this - functionality. + passed using flattened device trees (based on open firmware + concepts). + + CONFIG_OF_LIBFDT + * New libfdt-based support + * Adds the "fdt" command + * The bootm command does _not_ modify the fdt + + CONFIG_OF_FLAT_TREE + * Deprecated, see CONFIG_OF_LIBFDT + * Original ft_build.c-based support + * Automatically modifies the dft as part of the bootm command + * The environment variable "disable_of", when set, + disables this functionality. CONFIG_OF_FLAT_TREE_MAX_SIZE @@ -448,13 +460,16 @@ The following options need to be configured: CONFIG_OF_HAS_BD_T - The resulting flat device tree will have a copy of the bd_t. - Space should be pre-allocated in the dts for the bd_t. + * CONFIG_OF_LIBFDT - enables the "fdt bd_t" command + * CONFIG_OF_FLAT_TREE - The resulting flat device tree + will have a copy of the bd_t. Space should be + pre-allocated in the dts for the bd_t. CONFIG_OF_HAS_UBOOT_ENV - The resulting flat device tree will have a copy of u-boot's - environment variables + * CONFIG_OF_LIBFDT - enables the "fdt bd_t" command + * CONFIG_OF_FLAT_TREE - The resulting flat device tree + will have a copy of u-boot's environment variables CONFIG_OF_BOARD_SETUP @@ -721,6 +736,8 @@ The following options need to be configured: #define CONFIG_COMMANDS (CFG_CMD_ALL & ~CFG_CMD_NET) + Other Commands: + fdt (flattened device tree) command: CONFIG_OF_LIBFDT Note: Don't enable the "icache" and "dcache" commands (configuration option CFG_CMD_CACHE) unless you know @@ -2381,17 +2398,17 @@ configurations; the following names are supported: csb272_config lwmon_config sbc8260_config CU824_config MBX860T_config sbc8560_33_config DUET_ADS_config MBX_config sbc8560_66_config - EBONY_config MPC8260ADS_config SM850_config - ELPT860_config MPC8540ADS_config SPD823TS_config - ESTEEM192E_config MPC8540EVAL_config stxgp3_config - ETX094_config MPC8560ADS_config SXNI855T_config - FADS823_config NETVIA_config TQM823L_config - FADS850SAR_config omap1510inn_config TQM850L_config - FADS860T_config omap1610h2_config TQM855L_config - FPS850L_config omap1610inn_config TQM860L_config - omap5912osk_config walnut_config - omap2420h4_config Yukon8220_config - ZPC1900_config + EBONY_config mpc7448hpc2_config SM850_config + ELPT860_config MPC8260ADS_config SPD823TS_config + ESTEEM192E_config MPC8540ADS_config stxgp3_config + ETX094_config MPC8540EVAL_config SXNI855T_config + FADS823_config NMPC8560ADS_config TQM823L_config + FADS850SAR_config NETVIA_config TQM850L_config + FADS860T_config omap1510inn_config TQM855L_config + FPS850L_config omap1610h2_config TQM860L_config + omap1610inn_config walnut_config + omap5912osk_config Yukon8220_config + omap2420h4_config ZPC1900_config Note: for some board special configuration names may exist; check if additional information is available from the board vendor; for |