[U-Boot] [PATCH] [82xx] ids8247: Remove legacy NAND defines

[Heiko Schocher <hs@denx.de>]

because legacy NAND support is deprecated converting to current
NAND interface. !This just compile, because I have no more the
hardware to test it.

Signed-off-by: Heiko Schocher <hs@denx.de>
---
 board/ids8247/ids8247.c   |   92 +++++++++++++++++++++++++++++++++++++++++----
 include/configs/IDS8247.h |   55 ---------------------------
 2 files changed, 84 insertions(+), 63 deletions(-)

diff --git a/board/ids8247/ids8247.c b/board/ids8247/ids8247.c
index 68b7070..79fe9da 100644
--- a/board/ids8247/ids8247.c
+++ b/board/ids8247/ids8247.c
@@ -304,21 +304,97 @@ phys_size_t initdram (int board_type)
 int misc_init_r (void)
 {
 	gd->bd->bi_flashstart = 0xff800000;
+	return 0;
 }

 #if defined(CONFIG_CMD_NAND)
-extern ulong
-nand_probe (ulong physadr);
+#include <nand.h>
+#include <linux/mtd/mtd.h>
+#include <asm/io.h>
+
+static u8 hwctl;
+
+static void ids_nand_hwctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
+{
+	struct nand_chip *this = mtd->priv;
+
+	if (ctrl & NAND_CTRL_CHANGE) {
+		if ( ctrl & NAND_CLE ) {
+			hwctl |= 0x1;
+			writeb(0x00, (this->IO_ADDR_W + 0x0a));
+		} else {
+			hwctl &= ~0x1;
+			writeb(0x00, (this->IO_ADDR_W + 0x08));
+		}
+		if ( ctrl & NAND_ALE ) {
+			hwctl |= 0x2;
+			writeb(0x00, (this->IO_ADDR_W + 0x09));
+		} else {
+			hwctl &= ~0x2;
+			writeb(0x00, (this->IO_ADDR_W + 0x08));
+		}
+		if ( (ctrl & NAND_NCE) != NAND_NCE)
+			writeb(0x00, (this->IO_ADDR_W + 0x0c));
+		else
+			writeb(0x00, (this->IO_ADDR_W + 0x08));
+	}
+	if (cmd != NAND_CMD_NONE)
+		writeb(cmd, this->IO_ADDR_W);
+
+}

-void
-nand_init (void)
+static u_char ids_nand_read_byte(struct mtd_info *mtd)
 {
-	ulong totlen = 0;
+	struct nand_chip *this = mtd->priv;

-	debug ("Probing at 0x%.8x\n", CONFIG_SYS_NAND0_BASE);
-	totlen += nand_probe (CONFIG_SYS_NAND0_BASE);
+	return readb(this->IO_ADDR_R);
+}
+
+static void ids_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
+{
+	struct nand_chip *nand = mtd->priv;
+	int i;
+
+	for (i = 0; i < len; i++) {
+		if (hwctl & 0x1)
+			writeb(buf[i], (nand->IO_ADDR_W + 0x02));
+		else if (hwctl & 0x2)
+			writeb(buf[i], (nand->IO_ADDR_W + 0x01));
+		else
+			writeb(buf[i], nand->IO_ADDR_W);
+	}
+}

-	printf ("%4lu MB\n", totlen >>20);
+static void ids_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
+{
+	struct nand_chip *this = mtd->priv;
+	int i;
+
+	for (i = 0; i < len; i++) {
+		buf[i] = readb(this->IO_ADDR_R);
+	}
+}
+
+static int ids_nand_dev_ready(struct mtd_info *mtd)
+{
+	/* constant delay (see also tR in the datasheet) */
+	udelay(12);
+	return 1;
+}
+
+int board_nand_init(struct nand_chip *nand)
+{
+	nand->ecc.mode = NAND_ECC_SOFT;
+
+	/* Reference hardware control function */
+	nand->cmd_ctrl  = ids_nand_hwctrl;
+	nand->read_byte  = ids_nand_read_byte;
+	nand->write_buf  = ids_nand_write_buf;
+	nand->read_buf   = ids_nand_read_buf;
+	nand->dev_ready  = ids_nand_dev_ready;
+	nand->chip_delay = 12;
+
+	return 0;
 }

 #endif	/* CONFIG_CMD_NAND */
diff --git a/include/configs/IDS8247.h b/include/configs/IDS8247.h
index fbcbddb..51e012c 100644
--- a/include/configs/IDS8247.h
+++ b/include/configs/IDS8247.h
@@ -262,63 +262,8 @@
  */
 #if defined(CONFIG_CMD_NAND)

-#define CONFIG_NAND_LEGACY
 #define CONFIG_SYS_NAND0_BASE 0xE1000000
-
 #define CONFIG_SYS_MAX_NAND_DEVICE     1       /* Max number of NAND devices           */
-#define SECTORSIZE 512
-#define NAND_NO_RB
-
-#define ADDR_COLUMN 1
-#define ADDR_PAGE 2
-#define ADDR_COLUMN_PAGE 3
-
-#define NAND_ChipID_UNKNOWN     0x00
-#define NAND_MAX_FLOORS 1
-
-#define NAND_DISABLE_CE(nand) do \
-{ \
-	*(((volatile __u8 *)(nand->IO_ADDR)) + 0xc) = 0; \
-} while(0)
-
-#define NAND_ENABLE_CE(nand) do \
-{ \
-	*(((volatile __u8 *)(nand->IO_ADDR)) + 0x8) = 0; \
-} while(0)
-
-#define NAND_CTL_CLRALE(nandptr) do \
-{ \
-	*(((volatile __u8 *)nandptr) + 0x8) = 0; \
-} while(0)
-
-#define NAND_CTL_SETALE(nandptr) do \
-{ \
-	*(((volatile __u8 *)nandptr) + 0x9) = 0; \
-} while(0)
-
-#define NAND_CTL_CLRCLE(nandptr) do \
-{ \
-	*(((volatile __u8 *)nandptr) + 0x8) = 0; \
-} while(0)
-
-#define NAND_CTL_SETCLE(nandptr) do \
-{ \
-	*(((volatile __u8 *)nandptr) + 0xa) = 0; \
-} while(0)
-
-#ifdef NAND_NO_RB
-/* constant delay (see also tR in the datasheet) */
-#define NAND_WAIT_READY(nand) do { \
-	udelay(12); \
-} while (0)
-#else
-/* use the R/B pin */
-#endif
-
-#define WRITE_NAND_COMMAND(d, adr) do{ *(volatile __u8 *)((unsigned long)(adr + 0x2)) = (__u8)(d); } while(0)
-#define WRITE_NAND_ADDRESS(d, adr) do{ *(volatile __u8 *)((unsigned long)(adr + 0x1)) = (__u8)(d); } while(0)
-#define WRITE_NAND(d, adr) do{ *(volatile __u8 *)((unsigned long)(adr + 0x0)) = (__u8)d; } while(0)
-#define READ_NAND(adr) ((volatile unsigned char)(*(volatile __u8 *)(unsigned long)(adr + 0x0)))

 #endif /* CONFIG_CMD_NAND */

-- 
1.6.0.6

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany