[MTD] [NAND] Add Blackfin BF52x support in bf5xx_nand driver

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>

drivers/mtd/nand/Kconfig

@@ -93,7 +93,7 @@ config MTD_NAND_AU1550
 
 config MTD_NAND_BF5XX
 	tristate "Blackfin on-chip NAND Flash Controller driver"
-	depends on BF54x && MTD_NAND
+	depends on (BF54x || BF52x) && MTD_NAND
 	help
 	  This enables the Blackfin on-chip NAND flash controller
 

drivers/mtd/nand/bf5xx_nand.c

@@ -74,7 +74,22 @@ static int hardware_ecc = 1;
 static int hardware_ecc;
 #endif
 
-static unsigned short bfin_nfc_pin_req[] = {P_NAND_CE, P_NAND_RB, 0};
+static unsigned short bfin_nfc_pin_req[] =
+	{P_NAND_CE,
+	 P_NAND_RB,
+	 P_NAND_D0,
+	 P_NAND_D1,
+	 P_NAND_D2,
+	 P_NAND_D3,
+	 P_NAND_D4,
+	 P_NAND_D5,
+	 P_NAND_D6,
+	 P_NAND_D7,
+	 P_NAND_WE,
+	 P_NAND_RE,
+	 P_NAND_CLE,
+	 P_NAND_ALE,
+	 0};
 
 /*
  * Data structures for bf5xx nand flash controller driver
@@ -507,12 +522,13 @@ static int bf5xx_nand_dma_init(struct bf5xx_nand_info *info)
 
 	init_completion(&info->dma_completion);
 
+#ifdef CONFIG_BF54x
 	/* Setup DMAC1 channel mux for NFC which shared with SDH */
 	val = bfin_read_DMAC1_PERIMUX();
 	val &= 0xFFFE;
 	bfin_write_DMAC1_PERIMUX(val);
 	SSYNC();
-
+#endif
 	/* Request NFC DMA channel */
 	ret = request_dma(CH_NFC, "BF5XX NFC driver");
 	if (ret < 0) {