1 files changed, 47 insertions, 52 deletions

diff --git a/drivers/mtd/devices/pmc551.c b/drivers/mtd/devices/pmc551.c
index 5d53c5760a6c..0c51b988e1f8 100644
--- a/drivers/mtd/devices/pmc551.c
+++ b/drivers/mtd/devices/pmc551.c
@@ -94,12 +94,48 @@
 #include <linux/ioctl.h>
 #include <asm/io.h>
 #include <linux/pci.h>
-
 #include <linux/mtd/mtd.h>
-#include <linux/mtd/pmc551.h>
+
+#define PMC551_VERSION \
+        "Ramix PMC551 PCI Mezzanine Ram Driver. (C) 1999,2000 Nortel Networks.\n"
+
+#define PCI_VENDOR_ID_V3_SEMI 0x11b0
+#define PCI_DEVICE_ID_V3_SEMI_V370PDC 0x0200
+
+#define PMC551_PCI_MEM_MAP0 0x50
+#define PMC551_PCI_MEM_MAP1 0x54
+#define PMC551_PCI_MEM_MAP_MAP_ADDR_MASK 0x3ff00000
+#define PMC551_PCI_MEM_MAP_APERTURE_MASK 0x000000f0
+#define PMC551_PCI_MEM_MAP_REG_EN 0x00000002
+#define PMC551_PCI_MEM_MAP_ENABLE 0x00000001
+
+#define PMC551_SDRAM_MA  0x60
+#define PMC551_SDRAM_CMD 0x62
+#define PMC551_DRAM_CFG  0x64
+#define PMC551_SYS_CTRL_REG 0x78
+
+#define PMC551_DRAM_BLK0 0x68
+#define PMC551_DRAM_BLK1 0x6c
+#define PMC551_DRAM_BLK2 0x70
+#define PMC551_DRAM_BLK3 0x74
+#define PMC551_DRAM_BLK_GET_SIZE(x) (524288 << ((x >> 4) & 0x0f))
+#define PMC551_DRAM_BLK_SET_COL_MUX(x, v) (((x) & ~0x00007000) | (((v) & 0x7) << 12))
+#define PMC551_DRAM_BLK_SET_ROW_MUX(x, v) (((x) & ~0x00000f00) | (((v) & 0xf) << 8))
+
+struct mypriv {
+        struct pci_dev *dev;
+        u_char *start;
+        u32 base_map0;
+        u32 curr_map0;
+        u32 asize;
+        struct mtd_info *nextpmc551;
+};
 
 static struct mtd_info *pmc551list;
 
+static int pmc551_point(struct mtd_info *mtd, loff_t from, size_t len,
+                        size_t *retlen, void **virt, resource_size_t *phys);
+
 static int pmc551_erase(struct mtd_info *mtd, struct erase_info *instr)
 {
         struct mypriv *priv = mtd->priv;
@@ -115,16 +151,6 @@ static int pmc551_erase(struct mtd_info *mtd, struct erase_info *instr)
 #endif
 
         end = instr->addr + instr->len - 1;
-
-        /* Is it past the end? */
-        if (end > mtd->size) {
-#ifdef CONFIG_MTD_PMC551_DEBUG
-                printk(KERN_DEBUG "pmc551_erase() out of bounds (%ld > %ld)\n",
-                        (long)end, (long)mtd->size);
-#endif
-                return -EINVAL;
-        }
-
         eoff_hi = end & ~(priv->asize - 1);
         soff_hi = instr->addr & ~(priv->asize - 1);
         eoff_lo = end & (priv->asize - 1);
@@ -178,18 +204,6 @@ static int pmc551_point(struct mtd_info *mtd, loff_t from, size_t len,
         printk(KERN_DEBUG "pmc551_point(%ld, %ld)\n", (long)from, (long)len);
 #endif
 
-        if (from + len > mtd->size) {
-#ifdef CONFIG_MTD_PMC551_DEBUG
-                printk(KERN_DEBUG "pmc551_point() out of bounds (%ld > %ld)\n",
-                        (long)from + len, (long)mtd->size);
-#endif
-                return -EINVAL;
-        }
-
-        /* can we return a physical address with this driver? */
-        if (phys)
-                return -EINVAL;
-
         soff_hi = from & ~(priv->asize - 1);
         soff_lo = from & (priv->asize - 1);
 
@@ -205,11 +219,12 @@ static int pmc551_point(struct mtd_info *mtd, loff_t from, size_t len,
         return 0;
 }
 
-static void pmc551_unpoint(struct mtd_info *mtd, loff_t from, size_t len)
+static int pmc551_unpoint(struct mtd_info *mtd, loff_t from, size_t len)
 {
 #ifdef CONFIG_MTD_PMC551_DEBUG
         printk(KERN_DEBUG "pmc551_unpoint()\n");
 #endif
+        return 0;
 }
 
 static int pmc551_read(struct mtd_info *mtd, loff_t from, size_t len,
@@ -228,16 +243,6 @@ static int pmc551_read(struct mtd_info *mtd, loff_t from, size_t len,
 #endif
 
         end = from + len - 1;
-
-        /* Is it past the end? */
-        if (end > mtd->size) {
-#ifdef CONFIG_MTD_PMC551_DEBUG
-                printk(KERN_DEBUG "pmc551_read() out of bounds (%ld > %ld)\n",
-                        (long)end, (long)mtd->size);
-#endif
-                return -EINVAL;
-        }
-
         soff_hi = from & ~(priv->asize - 1);
         eoff_hi = end & ~(priv->asize - 1);
         soff_lo = from & (priv->asize - 1);
@@ -295,16 +300,6 @@ static int pmc551_write(struct mtd_info *mtd, loff_t to, size_t len,
 #endif
 
         end = to + len - 1;
-        /* Is it past the end?  or did the u32 wrap? */
-        if (end > mtd->size) {
-#ifdef CONFIG_MTD_PMC551_DEBUG
-                printk(KERN_DEBUG "pmc551_write() out of bounds (end: %ld, "
-                        "size: %ld, to: %ld)\n", (long)end, (long)mtd->size,
-                        (long)to);
-#endif
-                return -EINVAL;
-        }
-
         soff_hi = to & ~(priv->asize - 1);
         eoff_hi = end & ~(priv->asize - 1);
         soff_lo = to & (priv->asize - 1);
@@ -358,7 +353,7 @@ static int pmc551_write(struct mtd_info *mtd, loff_t to, size_t len,
  * mechanism
  * returns the size of the memory region found.
  */
-static u32 fixup_pmc551(struct pci_dev *dev)
+static int fixup_pmc551(struct pci_dev *dev)
 {
 #ifdef CONFIG_MTD_PMC551_BUGFIX
         u32 dram_data;
@@ -668,7 +663,7 @@ static int __init init_pmc551(void)
         struct mypriv *priv;
         int found = 0;
         struct mtd_info *mtd;
-        u32 length = 0;
+        int length = 0;
 
         if (msize) {
                 msize = (1 << (ffs(msize) - 1)) << 20;
@@ -786,11 +781,11 @@ static int __init init_pmc551(void)
 
                 mtd->size = msize;
                 mtd->flags = MTD_CAP_RAM;
-                mtd->erase = pmc551_erase;
-                mtd->read = pmc551_read;
-                mtd->write = pmc551_write;
-                mtd->point = pmc551_point;
-                mtd->unpoint = pmc551_unpoint;
+                mtd->_erase = pmc551_erase;
+                mtd->_read = pmc551_read;
+                mtd->_write = pmc551_write;
+                mtd->_point = pmc551_point;
+                mtd->_unpoint = pmc551_unpoint;
                 mtd->type = MTD_RAM;
                 mtd->name = "PMC551 RAM board";
                 mtd->erasesize = 0x10000;