1 files changed, 83 insertions, 13 deletions

diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c
index 1b1545478..1df21d49f 100644
--- a/arch/sandbox/cpu/start.c
+++ b/arch/sandbox/cpu/start.c
@@ -4,11 +4,12 @@
  */
 
 #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)
 {
@@ -50,9 +51,9 @@ int sandbox_early_getopt_check(void)
 
 		/* then the long flag */
 		if (opt->has_arg)
-			printf("--%-*s", max_noarg_len, opt->flag);
-		else
 			printf("--%-*s <arg> ", max_arg_len, opt->flag);
+		else
+			printf("--%-*s", max_noarg_len, opt->flag);
 
 		/* finally the help text */
 		printf("  %s\n", opt->help);
@@ -75,7 +76,8 @@ int sandbox_main_loop_init(void)
 	/* Execute command if required */
 	if (state->cmd) {
 		run_command_list(state->cmd, -1, 0);
-		os_exit(state->exit_type);
+		if (!state->interactive)
+			os_exit(state->exit_type);
 	}
 
 	return 0;
@@ -96,25 +98,93 @@ static int sandbox_cmdline_cb_fdt(struct sandbox_state *state, const char *arg)
 }
 SANDBOX_CMDLINE_OPT_SHORT(fdt, 'd', 1, "Specify U-Boot's control FDT");
 
-int main(int argc, char *argv[])
+static int sandbox_cmdline_cb_interactive(struct sandbox_state *state,
+					  const char *arg)
+{
+	state->interactive = true;
+	return 0;
+}
+
+SANDBOX_CMDLINE_OPT_SHORT(interactive, 'i', 0, "Enter interactive mode");
+
+static int sandbox_cmdline_cb_memory(struct sandbox_state *state,
+				     const char *arg)
 {
-	struct sandbox_state *state;
 	int err;
 
-	err = state_init();
-	if (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");
+
+static int sandbox_cmdline_cb_state(struct sandbox_state *state,
+				    const char *arg)
+{
+	state->state_fname = arg;
+	return 0;
+}
+SANDBOX_CMDLINE_OPT_SHORT(state, 's', 1, "Specify the sandbox state FDT");
+
+static int sandbox_cmdline_cb_read(struct sandbox_state *state,
+				   const char *arg)
+{
+	state->read_state = true;
+	return 0;
+}
+SANDBOX_CMDLINE_OPT_SHORT(read, 'r', 0, "Read the state FDT on startup");
+
+static int sandbox_cmdline_cb_write(struct sandbox_state *state,
+				    const char *arg)
+{
+	state->write_state = true;
+	return 0;
+}
+SANDBOX_CMDLINE_OPT_SHORT(write, 'w', 0, "Write state FDT on exit");
+
+static int sandbox_cmdline_cb_ignore_missing(struct sandbox_state *state,
+					     const char *arg)
+{
+	state->ignore_missing_state_on_read = true;
+	return 0;
+}
+SANDBOX_CMDLINE_OPT_SHORT(ignore_missing, 'n', 0,
+			  "Ignore missing state on read");
+
+int main(int argc, char *argv[])
+{
+	struct sandbox_state *state;
+	int ret;
+
+	ret = state_init();
+	if (ret)
+		goto err;
 
 	state = state_get_current();
 	if (os_parse_args(state, argc, argv))
 		return 1;
 
-	/*
-	 * Do pre- and post-relocation init, then start up U-Boot. This will
-	 * never return.
-	 */
+	ret = sandbox_read_state(state, state->state_fname);
+	if (ret)
+		goto err;
+
+	/* Do pre- and post-relocation init */
 	board_init_f(0);
 
-	/* NOTREACHED - board_init_f() does not return */
+	board_init_r(gd->new_gd, 0);
+
+	/* NOTREACHED - board_init_r() does not return */
 	return 0;
+
+err:
+	printf("Error %d\n", ret);
+	return 1;
 }