bootstage: Add bootstage command

[pandora-u-boot.git] / README

diff --git a/README b/README
index 309d88d..32e64d6 100644 (file)
--- a/README
+++ b/README
@@ -1483,6 +1483,12 @@ The following options need to be configured:
                can be displayed via the splashscreen support or the
                bmp command.
 
+- Do compresssing for memory range:
+               CONFIG_CMD_ZIP
+
+               If this option is set, it would use zlib deflate method
+               to compress the specified memory at its best effort.
+
 - Compression support:
                CONFIG_BZIP2
 
@@ -2378,6 +2384,31 @@ The following options need to be configured:
                 29,916,167 26,005,792  bootm_start
                 30,361,327    445,160  start_kernel
 
+               CONFIG_CMD_BOOTSTAGE
+               Add a 'bootstage' command which supports printing a report
+               and un/stashing of bootstage data.
+
+               CONFIG_BOOTSTAGE_FDT
+               Stash the bootstage information in the FDT. A root 'bootstage'
+               node is created with each bootstage id as a child. Each child
+               has a 'name' property and either 'mark' containing the
+               mark time in microsecond, or 'accum' containing the
+               accumulated time for that bootstage id in microseconds.
+               For example:
+
+               bootstage {
+                       154 {
+                               name = "board_init_f";
+                               mark = <3575678>;
+                       };
+                       170 {
+                               name = "lcd";
+                               accum = <33482>;
+                       };
+               };
+
+               Code in the Linux kernel can find this in /proc/devicetree.
+
 Legacy uImage format:
 
   Arg  Where                   When
@@ -2597,6 +2628,11 @@ FIT uImage format:
                CONFIG_SYS_SPL_MALLOC_SIZE
                The size of the malloc pool used in SPL.
 
+               CONFIG_SPL_FRAMEWORK
+               Enable the SPL framework under common/.  This framework
+               supports MMC, NAND and YMODEM loading of U-Boot and NAND
+               NAND loading of the Linux Kernel.
+
                CONFIG_SPL_DISPLAY_PRINT
                For ARM, enable an optional function to print more information
                about the running system.
@@ -2664,6 +2700,9 @@ FIT uImage format:
                CONFIG_SPL_SPI_SUPPORT
                Support for drivers/spi/libspi.o in SPL binary
 
+               CONFIG_SPL_RAM_DEVICE
+               Support for running image already present in ram, in SPL binary
+
                CONFIG_SPL_LIBGENERIC_SUPPORT
                Support for lib/libgeneric.o in SPL binary