cmd: Update the meminfo command to show the memory map

U-Boot has a fairly rigid memory map which is normally not visible
unless debugging is enabled in board_f.c

Update the 'meminfo' command to show it. This command does not cover
arch-specific pieces but gives a good overview of where things are.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/test/cmd/Makefile b/test/cmd/Makefile
index 4080835..4b487c1 100644
--- a/test/cmd/Makefile
+++ b/test/cmd/Makefile
@@ -19,8 +19,9 @@
 obj-$(CONFIG_CONSOLE_TRUETYPE) += font.o
 obj-$(CONFIG_CMD_HISTORY) += history.o
 obj-$(CONFIG_CMD_LOADM) += loadm.o
-obj-$(CONFIG_CMD_MEM_SEARCH) += mem_search.o
+obj-$(CONFIG_CMD_MEMINFO) += meminfo.o
 obj-$(CONFIG_CMD_MEMORY) += mem_copy.o
+obj-$(CONFIG_CMD_MEM_SEARCH) += mem_search.o
 ifdef CONFIG_CMD_PCI
 obj-$(CONFIG_CMD_PCI_MPS) += pci_mps.o
 endif
diff --git a/test/cmd/meminfo.c b/test/cmd/meminfo.c
new file mode 100644
index 0000000..8498130
--- /dev/null
+++ b/test/cmd/meminfo.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Test for 'meminfo' command
+ *
+ * Copyright 2024 Google LLC
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+#include <dm/test.h>
+#include <test/cmd.h>
+#include <test/ut.h>
+
+/* Test 'meminfo' command */
+static int cmd_test_meminfo(struct unit_test_state *uts)
+{
+	ut_assertok(run_command("meminfo", 0));
+	ut_assert_nextline("DRAM:  256 MiB");
+	ut_assert_nextline_empty();
+
+	ut_assert_nextline("Region           Base     Size      End      Gap");
+	ut_assert_nextlinen("-");
+
+	/* For now we don't worry about checking the values */
+	ut_assert_nextlinen("video");
+	ut_assert_nextlinen("code");
+	ut_assert_nextlinen("malloc");
+	ut_assert_nextlinen("board_info");
+	ut_assert_nextlinen("global_data");
+	ut_assert_nextlinen("devicetree");
+	ut_assert_nextlinen("bootstage");
+	ut_assert_nextlinen("bloblist");
+	ut_assert_nextlinen("stack");
+	ut_assert_nextlinen("free");
+	ut_assert_console_end();
+
+	return 0;
+}
+CMD_TEST(cmd_test_meminfo, UTF_CONSOLE);