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sandbox: Allow reading/writing of RAM buffer

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It is useful to be able to save and restore the RAM contents of sandbox
U-Boot either for setting up tests, for later analysys, or for chaining
together multiple tests which need to keep the same memory contents.

Add a function to provide a memory file for U-Boot. This is read on
start-up and written when shutting down. If the file does not exist
on start-up, it will be created when shutting down.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2013-11-10 10:27:03 -07:00
parent c5a62d4a7b
commit 5c2859cdc3
8 changed files with 118 additions and 6 deletions
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7
common/board_f.c
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@@ -347,9 +347,10 @@ done:
#ifdef CONFIG_SANDBOX
static int setup_ram_buf(void)
{
gd->arch.ram_buf = os_malloc(CONFIG_SYS_SDRAM_SIZE);
assert(gd->arch.ram_buf);
gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
struct sandbox_state *state = state_get_current();
gd->arch.ram_buf = state->ram_buf;
gd->ram_size = state->ram_size;
return 0;
}