sf: Add CONFIG_SF_DUAL_FLASH
This config will use for defining greater than single flash support.
currently - DUAL_STACKED and DUAL_PARALLEL.
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
diff --git a/drivers/mtd/spi/sf_ops.c b/drivers/mtd/spi/sf_ops.c
index 843f379..1f1bb36 100644
--- a/drivers/mtd/spi/sf_ops.c
+++ b/drivers/mtd/spi/sf_ops.c
@@ -131,6 +131,7 @@
}
#endif
+#ifdef CONFIG_SF_DUAL_FLASH
static void spi_flash_dual_flash(struct spi_flash *flash, u32 *addr)
{
switch (flash->dual_flash) {
@@ -150,6 +151,7 @@
break;
}
}
+#endif
int spi_flash_cmd_wait_ready(struct spi_flash *flash, unsigned long timeout)
{
@@ -167,9 +169,10 @@
check_status = poll_bit;
}
+#ifdef CONFIG_SF_DUAL_FLASH
if (spi->flags & SPI_XFER_U_PAGE)
flags |= SPI_XFER_U_PAGE;
-
+#endif
ret = spi_xfer(spi, 8, &cmd, NULL, flags);
if (ret) {
debug("SF: fail to read %s status register\n",
@@ -257,9 +260,10 @@
while (len) {
erase_addr = offset;
+#ifdef CONFIG_SF_DUAL_FLASH
if (flash->dual_flash > SF_SINGLE_FLASH)
spi_flash_dual_flash(flash, &erase_addr);
-
+#endif
#ifdef CONFIG_SPI_FLASH_BAR
ret = spi_flash_bank(flash, erase_addr);
if (ret < 0)
@@ -298,9 +302,10 @@
for (actual = 0; actual < len; actual += chunk_len) {
write_addr = offset;
+#ifdef CONFIG_SF_DUAL_FLASH
if (flash->dual_flash > SF_SINGLE_FLASH)
spi_flash_dual_flash(flash, &write_addr);
-
+#endif
#ifdef CONFIG_SPI_FLASH_BAR
ret = spi_flash_bank(flash, write_addr);
if (ret < 0)
@@ -383,9 +388,10 @@
while (len) {
read_addr = offset;
+#ifdef CONFIG_SF_DUAL_FLASH
if (flash->dual_flash > SF_SINGLE_FLASH)
spi_flash_dual_flash(flash, &read_addr);
-
+#endif
#ifdef CONFIG_SPI_FLASH_BAR
bank_sel = spi_flash_bank(flash, read_addr);
if (bank_sel < 0)