From 15a33e49decc81f34b35998a61757bfe2becae83 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Fri, 30 Nov 2012 13:01:20 +0000 Subject: Add option to display customised memory information Some boards want to report more than just memory size. For example, it might be useful to display the memory type (DDR2, DDR3) or manufacturer. Add a weak function to support this requirement, accessed through a new 'meminfo' command. Any example of the DRAM: output is below, just for illustration: SMDK5250 # meminfo DRAM: 2 GiB Elpida DDR3 @ 800MHz Signed-off-by: Simon Glass --- common/cmd_mem.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'common/cmd_mem.c') diff --git a/common/cmd_mem.c b/common/cmd_mem.c index 4d64cfffde..0f3ffc84ff 100644 --- a/common/cmd_mem.c +++ b/common/cmd_mem.c @@ -33,6 +33,9 @@ #include #endif #include +#include + +DECLARE_GLOBAL_DATA_PTR; static int mod_mem(cmd_tbl_t *, int, int, int, char * const []); @@ -1203,6 +1206,22 @@ U_BOOT_CMD( #endif +#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; +} +#endif + U_BOOT_CMD( base, 2, 1, do_mem_base, "print or set address offset", @@ -1243,3 +1262,11 @@ U_BOOT_CMD( "[.b, .w, .l] address value delay(ms)" ); #endif /* CONFIG_MX_CYCLIC */ + +#ifdef CONFIG_CMD_MEMINFO +U_BOOT_CMD( + meminfo, 3, 1, do_mem_info, + "display memory information", + "" +); +#endif -- cgit v1.2.1