sandbox: Add un/map_sysmen() to deal with sandbox's ram_buf

Sandbox doesn't actually provide U-Boot access to the machine's physical
memory. Instead it provides a RAM buffer of configurable size, an

sandbox: Add un/map_sysmen() to deal with sandbox's ram_buf

Sandbox doesn't actually provide U-Boot access to the machine's physical
memory. Instead it provides a RAM buffer of configurable size, and all
memory accesses are within that buffer. Sandbox memory starts at 0 and
is CONFIG_DRAM_SIZE bytes in size. Allowing access outside this buffer
might produce unpredictable results in the event of an error, and would
expose the host machine's memory architecture to the sandbox U-Boot.

Most U-Boot functions assume that they can just access memory at given
address. For sandbox this is not true.

Add a map_sysmem() call which converts a U-Boot address to a system
address. In most cases this is a NOP, but for sandbox it returns a
pointer to that memory inside the RAM buffer.

To get a U-Boot feature to work correctly within sandbox, you should call
map_sysmem() to get a pointer to the address, and then use that address for
any U-Boot memory accesses.

Signed-off-by: Simon Glass <sjg@chromium.org>

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Merge branch 'master' of /home/wd/git/u-boot/master

* 'master' of /home/wd/git/u-boot/master:
cosmetic: Fixup fixup_silent_linux() for checkpatch
Correct dependency rule to fix SPL build
Move

Merge branch 'master' of /home/wd/git/u-boot/master

* 'master' of /home/wd/git/u-boot/master:
cosmetic: Fixup fixup_silent_linux() for checkpatch
Correct dependency rule to fix SPL build
Move timestamp and version files into 'generated' subdir
sandbox: Makefile changes to build sandbox architecture
Add generic gpio.h in asm-generic
Adjust dependency rules to permit per-file flags
sandbox: Use uintptr_t for 32/64-bit compatibility
sandbox: Add basic config file
sandbox: Add serial uart
sandbox: Add main program
sandbox: Add OS dependent layer
sandbox: Force command sections to be 4-byte aligned
sandbox: Disable standalone/API support
sandbox: Disable built-in malloc
sandbox: Add bootm support
sandbox: Add board info for architecture
sandbox: Add sandbox board
sandbox: Add architecture lib files
sandbox: Add cpu files
sandbox: Add compiler defines to support a 64-bit x86_64 platform
sandbox: Add architecture image support
Fix use of int as pointer in image.c
sandbox: Add architecture header files
arm: ca9x4_ct_vxp: enable PXE BOOTP options support
arm: ca9x4_ct_vxp: enable pxe command support
Convert ca9x4_ct_vxp to standard env variables
net: bootp: add PXE/RFC 4578 DHCP options support
Add pxe command
lib: add uuid_str_to_bin for use with bootp and PXE uuid
README: document standard image variables
Replace space and tab checks with isblank
cosmetic: remove unneeded curly braces
Add isblank
common: add run_command2 for running simple or hush commands
common, menu: use abortboot for menu timeout
Add generic, reusable menu code
DM9000:Add a byte swap macro for dm9000 io operation.
kw_gpio: fix error in kw_gpio_direction_input
Blackfin: bfin_spi: fix build error when DEBUG is defined
Blackfin: define CONFIG_SYS_CACHELINE_SIZE
video: Moving mx3fb.c to CONFIG_VIDEO
mx31: make HSP clock for mx3fb driver available
MX5: Make IPU display output and pixel format configurable
VIDEO: MX5: export pix format
VIDEO: MX5: Switch MX5 to CONFIG_VIDEO
video: update the Freescale DIU driver to use linux/fb.h
powerpc: cpm2 boards: update fcc register logic

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sandbox: Add architecture header files

This adds required header files for the sandbox architecture, and a basic
description of what sandbox is (README.sandbox).

Signed-off-by: Simon Glass <sjg@chr

sandbox: Add architecture header files

This adds required header files for the sandbox architecture, and a basic
description of what sandbox is (README.sandbox).

Signed-off-by: Simon Glass <sjg@chromium.org>

show more ...