- struct nand_chip* this = (struct nand_chip *) (mtd->priv);
-
- switch(cmd) {
-
- case NAND_CTL_SETCLE:
- this->IO_ADDR_R |= (1 << 2);
- this->IO_ADDR_W |= (1 << 2);
- break;
- case NAND_CTL_CLRCLE:
- this->IO_ADDR_R &= ~(1 << 2);
- this->IO_ADDR_W &= ~(1 << 2);
- break;
-
- case NAND_CTL_SETALE:
- this->IO_ADDR_R |= (1 << 3);
- this->IO_ADDR_W |= (1 << 3);
- break;
- case NAND_CTL_CLRALE:
- this->IO_ADDR_R &= ~(1 << 3);
- this->IO_ADDR_W &= ~(1 << 3);
- break;
-
- case NAND_CTL_SETNCE:
- break;
- case NAND_CTL_CLRNCE:
- break;
- }
+ struct nand_chip *chip = mtd->priv;
+
+ if (cmd != NAND_CMD_NONE)
+ writeb(cmd, chip->IO_ADDR_W | ((ctrl & 0x6) << 1));