[U-Boot] [PATCH 4/4 v2] cmd: mtd: Add info text to mtd erase subcommand

[Stefan Roese <sr@denx.de>]

Adding this info helps seeing, what really is being erased - especially
if no arguments are passed for offset and size. Now this is the
output:

=> mtd erase spi-nand0
Erasing 0x00000000 ... 0x07ffffff (1024 eraseblock(s))
nand: attempt to erase a bad/reserved block @6000000
nand: attempt to erase a bad/reserved block @7fe0000

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Boris Brezillon <boris.brezillon@bootlin.com>
Cc: Jagan Teki <jagan@openedev.com>
---
v2:
- Print number of eraseblocks instead of pages as suggested by Boris

 cmd/mtd.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/cmd/mtd.c b/cmd/mtd.c
index b29aec18ca..7dc77edf28 100644
--- a/cmd/mtd.c
+++ b/cmd/mtd.c
@@ -355,6 +355,9 @@ static int do_mtd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 			return CMD_RET_FAILURE;
 		}
 
+		printf("Erasing 0x%08llx ... 0x%08llx (%d eraseblock(s))\n",
+		       off, off + len - 1, mtd_div_by_eb(len, mtd));
+
 		erase_op.mtd = mtd;
 		erase_op.addr = off;
 		erase_op.len = len;
-- 
2.18.0