[U-Boot] [PATCH] davinci_nand, trivial : use symbolic ECC start command

[Ben Gardiner]

The ECC calculations were started by writing 1 << 13 to the nand FCR register;
that value is also defined as DAVINCI_NANDFCR_4BIT_CALC_START in emif_defs.h.

This patch substitutes the macro DAVINCI_NANDFCR_4BIT_CALC_START for the
magic number '1 << 13'.

Signed-off-by: Ben Gardiner <bengardiner at nanometrics.ca>
CC: Sandeep Paulraj <s-paulraj at ti.com>
To: Scott Wood <scottwood at freescale.com>

---

 drivers/mtd/nand/davinci_nand.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index c5a86d6..d41579c 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -481,7 +481,8 @@ static int nand_davinci_4bit_correct_data(struct mtd_info *mtd, uint8_t *dat,
 	 * Set the addr_calc_st bit(bit no 13) in the NAND Flash Control
 	 * register to 1.
 	 */
-	__raw_writel(1 << 13, &davinci_emif_regs->nandfcr);
+	__raw_writel(DAVINCI_NANDFCR_4BIT_CALC_START,
+			&davinci_emif_regs->nandfcr);
 
 	/*
 	 * Wait for the corr_state field (bits 8 to 11) in the
-- 
1.7.0.4