config SYS_MALLOC_F
bool "Enable malloc() pool before relocation"
- default 0x400
+ default y if DM
help
Before relocation memory is very limited on many platforms. Still,
we can provide a small malloc() pool if needed. Driver model in
initial serial device and any others that are needed.
menuconfig EXPERT
- bool "Configure standard U-Boot features (expert users)"
- help
- This option allows certain base U-Boot options and settings
- to be disabled or tweaked. This is for specialized
- environments which can tolerate a "non-standard" U-Boot.
- Only use this if you really know what you are doing.
-
+ bool "Configure standard U-Boot features (expert users)"
+ default y
+ help
+ This option allows certain base U-Boot options and settings
+ to be disabled or tweaked. This is for specialized
+ environments which can tolerate a "non-standard" U-Boot.
+ Only use this if you really know what you are doing.
+
+if EXPERT
+ config SYS_MALLOC_CLEAR_ON_INIT
+ bool "Init with zeros the memory reserved for malloc (slow)"
+ default y
+ help
+ This setting is enabled by default. The reserved malloc
+ memory is initialized with zeros, so first malloc calls
+ will return the pointer to the zeroed memory. But this
+ slows the boot time.
+
+ It is recommended to disable it, when CONFIG_SYS_MALLOC_LEN
+ value, has more than few MiB, e.g. when uses bzip2 or bmp logo.
+ Then the boot time can be significantly reduced.
+ Warning:
+ When disabling this, please check if malloc calls, maybe
+ should be replaced by calloc - if expects zeroed memory.
+endif
endmenu # General setup
menu "Boot images"
help
If you want to build SPL as well as the normal image, say Y.
+config SPL_SYS_MALLOC_SIMPLE
+ bool
+ depends on SPL
+ prompt "Only use malloc_simple functions in the spl"
+ help
+ Say Y here to only use the *_simple malloc functions from
+ malloc_simple.c, rather then using the versions from dlmalloc.c
+ this will make the SPL binary smaller at the cost of more heap
+ usage as the *_simple malloc functions do not re-use free-ed mem.
+
+config SPL_STACK_R
+ depends on SPL
+ bool "Enable SDRAM location for SPL stack"
+ help
+ SPL starts off execution in SRAM and thus typically has only a small
+ stack available. Since SPL sets up DRAM while in its board_init_f()
+ function, it is possible for the stack to move there before
+ board_init_r() is reached. This option enables a special SDRAM
+ location for the SPL stack. U-Boot SPL switches to this after
+ board_init_f() completes, and before board_init_r() starts.
+
+config SPL_STACK_R_ADDR
+ depends on SPL_STACK_R
+ hex "SDRAM location for SPL stack"
+ help
+ Specify the address in SDRAM for the SPL stack. This will be set up
+ before board_init_r() is called.
+
+config SPL_STACK_R_MALLOC_SIMPLE_LEN
+ depends on SPL_STACK_R && SPL_SYS_MALLOC_SIMPLE
+ hex "Size of malloc_simple heap after switching to DRAM SPL stack"
+ default 0x100000
+ help
+ Specify the amount of the stack to use as memory pool for
+ malloc_simple after switching the stack to DRAM. This may be set
+ to give board_init_r() a larger heap then the initial heap in
+ SRAM which is limited to SYS_MALLOC_F_LEN bytes.
+
+config SPL_SEPARATE_BSS
+ depends on SPL
+ bool "BSS section is in a different memory region from text"
+ help
+ Some platforms need a large BSS region in SPL and can provide this
+ because RAM is already set up. In this case BSS can be moved to RAM.
+ This option should then be enabled so that the correct device tree
+ location is used. Normally we put the device tree at the end of BSS
+ but with this option enabled, it goes at _image_binary_end.
+
config TPL
bool
depends on SPL && SUPPORT_TPL
Flattened Image Tree. FIT is formally a FDT, which can include
images of various types (kernel, FDT blob, ramdisk, etc.)
in a single blob. To boot this new uImage structure,
- pass the the address of the blob to the "bootm" command.
+ pass the address of the blob to the "bootm" command.
config FIT_VERBOSE
bool "Display verbose messages on FIT boot"
select RSA
help
This option enables signature verification of FIT uImages,
- using a hash signed and verified using RSA.
+ using a hash signed and verified using RSA. If
+ CONFIG_SHA_PROG_HW_ACCEL is defined, i.e support for progressive
+ hashing is available using hardware, RSA library will use it.
See doc/uImage.FIT/signature.txt for more details.
config SYS_EXTRA_OPTIONS
new boards should not use this option.
config SYS_TEXT_BASE
- depends on SPARC || ARC
+ depends on SPARC || ARC || X86 || ARCH_UNIPHIER || ARCH_ZYNQMP || \
+ (M68K && !TARGET_ASTRO_MCF5373L) || MICROBLAZE
+ depends on !EFI_APP
hex "Text Base"
help
TODO: Move CONFIG_SYS_TEXT_BASE for all the architecture
config SYS_CLK_FREQ
- depends on ARC
+ depends on ARC || ARCH_SUNXI
int "CPU clock frequency"
help
TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture
source "common/Kconfig"
+source "cmd/Kconfig"
+
source "dts/Kconfig"
source "net/Kconfig"
projects / J-u-boot.git / blobdiff