The new meminfo command shows details memory information. It is implemented
by board_show_dram(), which should be implemented by the board.
This is a rewrite of the patch:
arm: Add option to display customised memory information
according to feedback on the mailing list.
Signed-off-by: Simon Glass <s...@chromium.org>
---
Changes in v2:
- Rework DRAM info feature to use a command instead of updating arm code
README | 8 ++++++++
common/cmd_mem.c | 25 +++++++++++++++++++++++++
2 files changed, 33 insertions(+), 0 deletions(-)
diff --git a/README b/README
index b1379a6..7a81cd4 100644
--- a/README
+++ b/README
@@ -2414,6 +2414,14 @@ CBFS (Coreboot Filesystem) support
Note: There is also a sha1sum command, which should perhaps
be deprecated in favour of 'hash sha1'.
+- Detailed memory information
+ CONFIG_CMD_MEMINFO
+
+ Define this to provide a 'meminfo' command. This prints
+ information on system memory. You can provide a
+ board-specific function board_show_dram() to print this
+ information if the standard message is insufficient.
+
- Show boot progress:
CONFIG_SHOW_BOOT_PROGRESS
diff --git a/common/cmd_mem.c b/common/cmd_mem.c
index 4d64cff..4727abd 100644
--- a/common/cmd_mem.c
+++ b/common/cmd_mem.c
@@ -33,6 +33,9 @@
#include <dataflash.h>
#endif
#include <watchdog.h>
+#include <linux/compiler.h>
+
+DECLARE_GLOBAL_DATA_PTR;
static int mod_mem(cmd_tbl_t *, int, int, int, char * const []);
@@ -1243,3 +1246,25 @@ U_BOOT_CMD(
"[.b, .w, .l] address value delay(ms)"
);
#endif /* CONFIG_MX_CYCLIC */
+
+#ifdef CONFIG_CMD_MEMINFO
+__weak void board_show_dram(ulong size)
+{
+ puts("DRAM: ");
+ print_size(size, "\n");
+}
+
+static int do_mem_info(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
+{
+ board_show_dram(gd->ram_size);
+
+ return 0;
+}
+
+U_BOOT_CMD(
+ meminfo, 3, 1, do_mem_info,
+ "display memory information",
+ ""
+);
+#endif
--
1.7.7.3
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
