sandbox: Allow reading/writing of RAM buffer

[people/ms/u-boot.git] / arch / sandbox / cpu / start.c

diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c
index 579ece44711ea40e7134f6b70750e0a48157cec2..452f2a98f3609d9c36ec64234f5f371ac8b90821 100644 (file)
--- a/arch/sandbox/cpu/start.c
+++ b/arch/sandbox/cpu/start.c
@@ -4,12 +4,11 @@
  */
 
 #include <common.h>
+#include <os.h>
 #include <asm/getopt.h>
 #include <asm/sections.h>
 #include <asm/state.h>
 
-#include <os.h>
-
 DECLARE_GLOBAL_DATA_PTR;
 
 int sandbox_early_getopt_check(void)
@@ -108,6 +107,25 @@ static int sandbox_cmdline_cb_interactive(struct sandbox_state *state,
 
 SANDBOX_CMDLINE_OPT_SHORT(interactive, 'i', 0, "Enter interactive mode");
 
+static int sandbox_cmdline_cb_memory(struct sandbox_state *state,
+                                    const char *arg)
+{
+       int err;
+
+       /* For now assume we always want to write it */
+       state->write_ram_buf = true;
+       state->ram_buf_fname = arg;
+
+       if (os_read_ram_buf(arg)) {
+               printf("Failed to read RAM buffer\n");
+               return err;
+       }
+
+       return 0;
+}
+SANDBOX_CMDLINE_OPT_SHORT(memory, 'm', 1,
+                         "Read/write ram_buf memory contents from file");
+
 int main(int argc, char *argv[])
 {
        struct sandbox_state *state;