From: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Date: Thu, 10 Oct 2013 18:43:30 +0000 (+0530)
Subject: sf: Add missing SPI_FLASH_U_PAGE flags in get_status
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=890d2a9ff5fdb2f8db2892c64c397e94a3e0c03d;p=thirdparty%2Fu-boot.git

sf: Add missing SPI_FLASH_U_PAGE flags in get_status

Added missed flag SPI_FLASH_U_PAGE in get_status call
for dual stacked mode

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
---

diff --git a/drivers/mtd/spi/spi_flash.c b/drivers/mtd/spi/spi_flash.c
index 68759c74735..d052c5e6312 100644
--- a/drivers/mtd/spi/spi_flash.c
+++ b/drivers/mtd/spi/spi_flash.c
@@ -75,8 +75,12 @@ static int spi_flash_get_status(struct spi_flash *flash, u8 cmd, u8 *resp)
 {
 	int ret;
 	struct spi_slave *spi = flash->spi;
+	unsigned long flags = SPI_XFER_BEGIN;
+
+	if ((spi->is_dual == MODE_DUAL_STACKED) && (spi->u_page == 1))
+		flags |= SPI_FLASH_U_PAGE;
 
-	ret = spi_xfer(spi, 8, &cmd, NULL, SPI_XFER_BEGIN);
+	ret = spi_xfer(spi, 8, &cmd, NULL, flags);
 	if (ret) {
 		debug("SF: fail to read %s status register\n",
 		      cmd == CMD_READ_STATUS ? "read" : "flag");