ppc: pp405-generic: Simplify Makefile

[J-u-boot.git] / lib / Kconfig

diff --git a/lib/Kconfig b/lib/Kconfig
index 3c8de869b1f63fa42390abd4463e65505a5a18f4..46d7034397c1bae8e48f5d7751b39e8325b0db35 100644 (file)
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -27,17 +27,19 @@ config SYS_HZ
          get_timer() must operate in milliseconds and this option must be
          set to 1000.
 
-config SYS_VSNPRINTF
-       bool "Enable safe version of sprintf()"
+config USE_TINY_PRINTF
+       bool "Enable tiny printf() version"
        help
-         Since sprintf() can overflow its buffer, it is common to use
-         snprintf() instead, which knows the buffer size and can avoid
-         overflow. However, this does increase code size slightly (for
-         Thumb-2, about 420 bytes). Enable this option for safety when
-         using sprintf() with data you do not control.
+         This option enables a tiny, stripped down printf version.
+         This should only be used in space limited environments,
+         like SPL versions with hard memory limits. This version
+         reduces the code size by about 2.5KiB on armv7.
+
+         The supported format specifiers are %c, %s, %u/%d and %x.
 
 config REGEX
        bool "Enable regular expression support"
+       default y if NET
        help
          If this variable is defined, U-Boot is linked against the
          SLRE (Super Light Regular Expression) library, which adds
@@ -45,10 +47,25 @@ config REGEX
          "setexpr".
 
 config LIB_RAND
-       bool
+       bool "Pseudo-random library support "
+       help
+         This library provides pseudo-random number generator functions.
+
+source lib/dhry/Kconfig
 
 source lib/rsa/Kconfig
 
+config TPM
+       bool "Trusted Platform Module (TPM) Support"
+       depends on DM
+       help
+         This enables support for TPMs which can be used to provide security
+         features for your board. The TPM can be connected via LPC or I2C
+         and a sandbox TPM is provided for testing purposes. Use the 'tpm'
+         command to interactive the TPM. Driver model support is provided
+         for the low-level TPM interface, but only one TPM is supported at
+         a time by the TPM library.
+
 menu "Hashing Support"
 
 config SHA1
@@ -85,6 +102,24 @@ config SHA_PROG_HW_ACCEL
          is performed in hardware.
 endmenu
 
+menu "Compression Support"
+
+config LZ4
+       bool "Enable LZ4 decompression support"
+       help
+         If this option is set, support for LZ4 compressed images
+         is included. The LZ4 algorithm can run in-place as long as the
+         compressed image is loaded to the end of the output buffer, and
+         trades lower compression ratios for much faster decompression.
+         
+         NOTE: This implements the release version of the LZ4 frame
+         format as generated by default by the 'lz4' command line tool.
+         This is not the same as the outdated, less efficient legacy
+         frame format currently (2015) implemented in the Linux kernel
+         (generated by 'lz4 -l'). The two formats are incompatible.
+
+endmenu
+
 config ERRNO_STR
        bool "Enable function for getting errno-related string message"
        help
@@ -93,4 +128,6 @@ config ERRNO_STR
          - if errno is null or positive number - a pointer to "Success" message
          - if errno is negative - a pointer to errno related message
 
+source lib/efi/Kconfig
+
 endmenu