[U-Boot] [PATCH 03/15] sunxi_nand_spl: We only need to reset the nand chip once

[Hans de Goede]

There is no need to reset the nand chip for every ecc-block read.

Signed-off-by: Hans de Goede <hdegoede at redhat.com>
---
 drivers/mtd/nand/sunxi_nand_spl.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/mtd/nand/sunxi_nand_spl.c b/drivers/mtd/nand/sunxi_nand_spl.c
index 46654e4..56c0be0 100644
--- a/drivers/mtd/nand/sunxi_nand_spl.c
+++ b/drivers/mtd/nand/sunxi_nand_spl.c
@@ -162,6 +162,16 @@ void nand_init(void)
 				 NFC_CTL_RESET, MAX_RETRIES)) {
 		printf("Couldn't initialize nand\n");
 	}
+
+	/* reset NAND */
+	writel(NFC_SEND_CMD1 | NFC_WAIT_FLAG | NAND_CMD_RESET,
+	       SUNXI_NFC_BASE + NFC_CMD);
+
+	if (!check_value(SUNXI_NFC_BASE + NFC_ST, NFC_CMD_INT_FLAG,
+			 MAX_RETRIES)) {
+		printf("Error timeout waiting for nand reset\n");
+		return;
+	}
 }
 
 static void nand_read_page(unsigned int real_addr, dma_addr_t dst,
@@ -223,16 +233,6 @@ static void nand_read_page(unsigned int real_addr, dma_addr_t dst,
 		return;
 	}
 
-	/* set CMD  */
-	writel(NFC_SEND_CMD1 | NFC_WAIT_FLAG | NAND_CMD_RESET,
-	       SUNXI_NFC_BASE + NFC_CMD);
-
-	if (!check_value(SUNXI_NFC_BASE + NFC_ST, NFC_CMD_INT_FLAG,
-			 MAX_RETRIES)) {
-		printf("Error while initilizing command interrupt\n");
-		return;
-	}
-
 	page = real_addr / CONFIG_NAND_SUNXI_SPL_PAGE_SIZE;
 	column = real_addr % CONFIG_NAND_SUNXI_SPL_PAGE_SIZE;
 
-- 
2.4.3