From: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Date: Thu, 10 Oct 2013 18:24:35 +0000 (+0530)
Subject: sf: winbond: Add Dual stacked and Dual parallel support
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=54046cb9ab8f3419c40783b34deda073ad10d3b3;p=thirdparty%2Fu-boot.git

sf: winbond: Add Dual stacked and Dual parallel support

Added the Dual stacked and Dual parallel support for the
Winbond devices.

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/winbond.c b/drivers/mtd/spi/winbond.c
index 47c39e50048..eb9033cfdc7 100644
--- a/drivers/mtd/spi/winbond.c
+++ b/drivers/mtd/spi/winbond.c
@@ -164,5 +164,13 @@ struct spi_flash *spi_flash_probe_winbond(struct spi_slave *spi, u8 *idcode)
 	flash->sector_size = (idcode[1] == 0x20) ? 65536 : 4096;
 	flash->size = 4096 * 16 * params->nr_blocks;
 
+	if (flash->spi->is_dual == MODE_DUAL_PARALLEL) {
+		flash->page_size *= 2;
+		flash->sector_size *= 2;
+	}
+
+	if (flash->spi->is_dual > MODE_SINGLE)
+		flash->size *= 2;
+
 	return flash;
 }