From: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Date: Wed, 12 Sep 2012 13:29:34 +0000 (+0530)
Subject: Xilinx: ARM: spi: zynq: Add QUAD enable bit support for winbond flash
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=209759b76b56e2fa996b7cbff8e522dfb56480ab;p=thirdparty%2Fu-boot.git

Xilinx: ARM: spi: zynq: Add QUAD enable bit support for winbond flash

This patch adds support to enable QUAD bit on winbond SPI flash.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
---

diff --git a/drivers/spi/zynq_qspi_wrap.c b/drivers/spi/zynq_qspi_wrap.c
index 7516f3df8bf..bfeb6a1f7f0 100644
--- a/drivers/spi/zynq_qspi_wrap.c
+++ b/drivers/spi/zynq_qspi_wrap.c
@@ -68,7 +68,7 @@ void spi_enable_quad_bit(struct spi_slave *spi)
 		return;
 	}
 
-	if (idcode[0] == 0x01) {
+	if ((idcode[0] == 0x01) || (idcode[0] == 0xef)) {
 		/* Read config register */
 		ret = spi_flash_cmd_read(spi, &rcr_cmd, sizeof(rcr_cmd),
 					&rcr_data, sizeof(rcr_data));