From: John Linn <john.linn@xilinx.com>
Date: Mon, 19 Dec 2011 20:35:55 +0000 (-0800)
Subject: Xilinx: ARM: NAND: wait for device ready after device reset
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=4cc0feaa60f83650134ea72f5522691c57d34a34;p=thirdparty%2Fu-boot.git

Xilinx: ARM: NAND: wait for device ready after device reset

When moving from PEEP to Zynq, the ID of the flash was not
being read at all, only zeroes. The driver was not waiting
for the device to be ready after resetting the device and
since Zynq is so much faster it was a problem.
---

diff --git a/board/xilinx/dfe/xilinx_nandpss.c b/board/xilinx/dfe/xilinx_nandpss.c
index f6629062511..0b8fa102648 100644
--- a/board/xilinx/dfe/xilinx_nandpss.c
+++ b/board/xilinx/dfe/xilinx_nandpss.c
@@ -879,7 +879,7 @@ static void xnandpss_cmd_function(struct mtd_info *mtd, unsigned int command,
 
 	ndelay(100);
 
-	if (command == NAND_CMD_READ0) {
+	if ((command == NAND_CMD_READ0) || (command == NAND_CMD_RESET)) {
 		while (!chip->dev_ready(mtd))
 				;
 		return;