[MIPS] Add MTD device support for Cobalt

This patch has added MTD device support for Cobalt.
Moreover, removes old type FlashROM support.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 0 insertions, 168 deletions

diff --git a/drivers/char/lcd.c b/drivers/char/lcd.c
index d649abbf0857..5f4fdcf7c96e 100644
--- a/drivers/char/lcd.c
+++ b/drivers/char/lcd.c
@@ -409,138 +409,6 @@ static int lcd_ioctl(struct inode *inode, struct file *file,
                         break;
                 }
 
-//  Erase the flash
-
-        case FLASH_Erase:{
-
-                        int ctr = 0;
-
-                        if ( !capable(CAP_SYS_ADMIN) ) return -EPERM;
-
-                        pr_info(LCD "Erasing Flash\n");
-
-                        // Chip Erase Sequence
-                        WRITE_FLASH(kFlash_Addr1, kFlash_Data1);
-                        WRITE_FLASH(kFlash_Addr2, kFlash_Data2);
-                        WRITE_FLASH(kFlash_Addr1, kFlash_Erase3);
-                        WRITE_FLASH(kFlash_Addr1, kFlash_Data1);
-                        WRITE_FLASH(kFlash_Addr2, kFlash_Data2);
-                        WRITE_FLASH(kFlash_Addr1, kFlash_Erase6);
-
-                        while ((!dqpoll(0x00000000, 0xFF))
-                               && (!timeout(0x00000000))) {
-                                ctr++;
-                        }
-
-                        if (READ_FLASH(0x07FFF0) == 0xFF) {
-                                pr_info(LCD "Erase Successful\n");
-                        } else if (timeout) {
-                                pr_info(LCD "Erase Timed Out\n");
-                        }
-
-                        break;
-                }
-
-// burn the flash
-
-        case FLASH_Burn:{
-
-                        volatile unsigned long burn_addr;
-                        unsigned long flags;
-                        unsigned int i, index;
-                        unsigned char *rom;
-
-
-                        struct lcd_display display;
-
-                        if ( !capable(CAP_SYS_ADMIN) ) return -EPERM;
-
-                        if (copy_from_user
-                            (&display, (struct lcd_display *) arg,
-                             sizeof(struct lcd_display)))
-                                return -EFAULT;
-                        rom = kmalloc((128), GFP_ATOMIC);
-                        if (rom == NULL) {
-                                printk(KERN_ERR LCD "kmalloc() failed in %s\n",
-                                                __FUNCTION__);
-                                return -ENOMEM;
-                        }
-
-                        pr_info(LCD "Starting Flash burn\n");
-                        for (i = 0; i < FLASH_SIZE; i = i + 128) {
-
-                                if (copy_from_user
-                                    (rom, display.RomImage + i, 128)) {
-                                        kfree(rom);
-                                        return -EFAULT;
-                                }
-                                burn_addr = kFlashBase + i;
-                                spin_lock_irqsave(&lcd_lock, flags);
-                                for (index = 0; index < (128); index++) {
-
-                                        WRITE_FLASH(kFlash_Addr1,
-                                                    kFlash_Data1);
-                                        WRITE_FLASH(kFlash_Addr2,
-                                                    kFlash_Data2);
-                                        WRITE_FLASH(kFlash_Addr1,
-                                                    kFlash_Prog);
-                                        *((volatile unsigned char *)burn_addr) =
-                                          (volatile unsigned char) rom[index];
-
-                                        while ((!dqpoll (burn_addr,
-                                                (volatile unsigned char)
-                                                rom[index])) &&
-                                                (!timeout(burn_addr))) { }
-                                        burn_addr++;
-                                }
-                                spin_unlock_irqrestore(&lcd_lock, flags);
-                                if (* ((volatile unsigned char *)
-                                        (burn_addr - 1)) ==
-                                        (volatile unsigned char)
-                                        rom[index - 1]) {
-                                } else if (timeout) {
-                                        pr_info(LCD "Flash burn timed out\n");
-                                }
-
-
-                        }
-                        kfree(rom);
-
-                        pr_info(LCD "Flash successfully burned\n");
-
-                        break;
-                }
-
-//  read the flash all at once
-
-        case FLASH_Read:{
-
-                        unsigned char *user_bytes;
-                        volatile unsigned long read_addr;
-                        unsigned int i;
-
-                        user_bytes =
-                            &(((struct lcd_display *) arg)->RomImage[0]);
-
-                        if (!access_ok
-                            (VERIFY_WRITE, user_bytes, FLASH_SIZE))
-                                return -EFAULT;
-
-                        pr_info(LCD "Reading Flash");
-                        for (i = 0; i < FLASH_SIZE; i++) {
-                                unsigned char tmp_byte;
-                                read_addr = kFlashBase + i;
-                                tmp_byte =
-                                    *((volatile unsigned char *)
-                                      read_addr);
-                                if (__put_user(tmp_byte, &user_bytes[i]))
-                                        return -EFAULT;
-                        }
-
-
-                        break;
-                }
-
         default:
                 return -EINVAL;
 
@@ -644,42 +512,6 @@ static void __exit lcd_exit(void)
         misc_deregister(&lcd_dev);
 }
 
-//
-// Function: dqpoll
-//
-// Description:  Polls the data lines to see if the flash is busy
-//
-// In: address, byte data
-//
-// Out: 0 = busy, 1 = write or erase complete
-//
-//
-
-static int dqpoll(volatile unsigned long address, volatile unsigned char data)
-{
-        volatile unsigned char dq7;
-
-        dq7 = data & 0x80;
-
-        return ((READ_FLASH(address) & 0x80) == dq7);
-}
-
-//
-// Function: timeout
-//
-// Description: Checks to see if erase or write has timed out
-//              By polling dq5
-//
-// In: address
-//
-//
-// Out: 0 = not timed out, 1 = timed out
-
-static int timeout(volatile unsigned long address)
-{
-        return (READ_FLASH(address) & 0x20) == 0x20;
-}
-
 module_init(lcd_init);
 module_exit(lcd_exit);