mtd: nand: omap: bring in gpmc nand macros

Bring onto driver the macros defined in gpmc.h that are
not necessary outside driver, helps in removing inclusion
of gpmc.h too. Also remove GPMC prefix on those macros to
make clear it's independence with gpmc header.

Signed-off-by: Afzal Mohammed <afzal@ti.com>

diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index abfc602..f0a1b1d 100644 (file)
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -110,6 +110,11 @@
 #define        ECC1RESULTSIZE                  0x1
 #define        ECCCLEAR                        0x100
 #define        ECC1                            0x1
+#define        PREFETCH_FIFOTHRESHOLD_MAX      0x40
+#define        PREFETCH_FIFOTHRESHOLD(val)     ((val) << 8)
+#define        PREFETCH_STATUS_COUNT(val)      (val & 0x00003fff)
+#define        PREFETCH_STATUS_FIFO_CNT(val)   ((val >> 24) & 0x7F)
+#define        STATUS_BUFF_EMPTY               0x00000001
 
 /* oob info generated runtime depending on ecc algorithm and layout selected */
 static struct nand_ecclayout omap_oobinfo;
@@ -269,7 +274,7 @@ static void omap_write_buf8(struct mtd_info *mtd, const u_char *buf, int len)
                /* wait until buffer is available for write */
                do {
                        status = readl(info->reg.gpmc_status) &
-                                       GPMC_STATUS_BUFF_EMPTY;
+                                       STATUS_BUFF_EMPTY;
                } while (!status);
        }
 }
@@ -307,7 +312,7 @@ static void omap_write_buf16(struct mtd_info *mtd, const u_char * buf, int len)
                /* wait until buffer is available for write */
                do {
                        status = readl(info->reg.gpmc_status) &
-                                       GPMC_STATUS_BUFF_EMPTY;
+                                       STATUS_BUFF_EMPTY;
                } while (!status);
        }
 }
@@ -348,7 +353,7 @@ static void omap_read_buf_pref(struct mtd_info *mtd, u_char *buf, int len)
        } else {
                do {
                        r_count = readl(info->reg.gpmc_prefetch_status);
-                       r_count = GPMC_PREFETCH_STATUS_FIFO_CNT(r_count);
+                       r_count = PREFETCH_STATUS_FIFO_CNT(r_count);
                        r_count = r_count >> 2;
                        ioread32_rep(info->nand.IO_ADDR_R, p, r_count);
                        p += r_count;
@@ -395,7 +400,7 @@ static void omap_write_buf_pref(struct mtd_info *mtd,
        } else {
                while (len) {
                        w_count = readl(info->reg.gpmc_prefetch_status);
-                       w_count = GPMC_PREFETCH_STATUS_FIFO_CNT(w_count);
+                       w_count = PREFETCH_STATUS_FIFO_CNT(w_count);
                        w_count = w_count >> 1;
                        for (i = 0; (i < w_count) && len; i++, len -= 2)
                                iowrite16(*p++, info->nand.IO_ADDR_W);
@@ -407,7 +412,7 @@ static void omap_write_buf_pref(struct mtd_info *mtd,
                do {
                        cpu_relax();
                        val = readl(info->reg.gpmc_prefetch_status);
-                       val = GPMC_PREFETCH_STATUS_COUNT(val);
+                       val = PREFETCH_STATUS_COUNT(val);
                } while (val && (tim++ < limit));
 
                /* disable and stop the PFPW engine */
@@ -493,7 +498,7 @@ static inline int omap_nand_dma_transfer(struct mtd_info *mtd, void *addr,
        do {
                cpu_relax();
                val = readl(info->reg.gpmc_prefetch_status);
-               val = GPMC_PREFETCH_STATUS_COUNT(val);
+               val = PREFETCH_STATUS_COUNT(val);
        } while (val && (tim++ < limit));
 
        /* disable and stop the PFPW engine */
@@ -556,7 +561,7 @@ static irqreturn_t omap_nand_irq(int this_irq, void *dev)
        u32 bytes;
 
        bytes = readl(info->reg.gpmc_prefetch_status);
-       bytes = GPMC_PREFETCH_STATUS_FIFO_CNT(bytes);
+       bytes = PREFETCH_STATUS_FIFO_CNT(bytes);
        bytes = bytes  & 0xFFFC; /* io in multiple of 4 bytes */
        if (info->iomode == OMAP_NAND_IO_WRITE) { /* checks for write io */
                if (this_irq == info->gpmc_irq_count)
@@ -682,7 +687,7 @@ static void omap_write_buf_irq_pref(struct mtd_info *mtd,
        limit = (loops_per_jiffy *  msecs_to_jiffies(OMAP_NAND_TIMEOUT_MS));
        do {
                val = readl(info->reg.gpmc_prefetch_status);
-               val = GPMC_PREFETCH_STATUS_COUNT(val);
+               val = PREFETCH_STATUS_COUNT(val);
                cpu_relax();
        } while (val && (tim++ < limit));