stm32x7: add support for stm32x7 serial driver

[u-boot] / lib / Kconfig

diff --git a/lib/Kconfig b/lib/Kconfig
index a8f8460d1de3893f88a7452b8fc04ce271d1e6ce..c7eab46516f050e8a4e36a0d71f3b9fbd9170392 100644 (file)
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -16,7 +16,7 @@ config USE_PRIVATE_LIBGCC
        depends on HAVE_PRIVATE_LIBGCC
        help
          This option allows you to use the built-in libgcc implementation
-         of U-boot instead of the one privided by the compiler.
+         of U-Boot instead of the one privided by the compiler.
          If unsure, say N.
 
 config SYS_HZ
@@ -27,14 +27,15 @@ 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"
@@ -56,6 +57,7 @@ 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