Merge to Fedora kernel-2.6.18-1.2224_FC5 patched with stable patch-2.6.18.1-vs2.0...
[linux-2.6.git] / drivers / mtd / nand / ppchameleonevb.c
index 91a95f3..22fa65c 100644 (file)
 /*
  * MTD structure for PPChameleonEVB board
  */
-static struct mtd_info *ppchameleon_mtd        = NULL;
+static struct mtd_info *ppchameleon_mtd = NULL;
 static struct mtd_info *ppchameleonevb_mtd = NULL;
 
 /*
  * Module stuff
  */
-static unsigned long ppchameleon_fio_pbase     = CFG_NAND0_PADDR;
+static unsigned long ppchameleon_fio_pbase = CFG_NAND0_PADDR;
 static unsigned long ppchameleonevb_fio_pbase = CFG_NAND1_PADDR;
 
 #ifdef MODULE
 module_param(ppchameleon_fio_pbase, ulong, 0);
 module_param(ppchameleonevb_fio_pbase, ulong, 0);
 #else
-__setup("ppchameleon_fio_pbase=",ppchameleon_fio_pbase);
-__setup("ppchameleonevb_fio_pbase=",ppchameleonevb_fio_pbase);
+__setup("ppchameleon_fio_pbase=", ppchameleon_fio_pbase);
+__setup("ppchameleonevb_fio_pbase=", ppchameleonevb_fio_pbase);
 #endif
 
 #ifdef CONFIG_MTD_PARTITIONS
@@ -80,82 +80,96 @@ __setup("ppchameleonevb_fio_pbase=",ppchameleonevb_fio_pbase);
  * Define static partitions for flash devices
  */
 static struct mtd_partition partition_info_hi[] = {
-       { name: "PPChameleon HI Nand Flash",
-                 offset: 0,
-                 size: 128*1024*1024 }
+      { .name = "PPChameleon HI Nand Flash",
+       offset = 0,
+       .size = 128 * 1024 * 1024
+      }
 };
 
 static struct mtd_partition partition_info_me[] = {
-       { name: "PPChameleon ME Nand Flash",
-                 offset: 0,
-                 size: 32*1024*1024 }
+      { .name = "PPChameleon ME Nand Flash",
+       .offset = 0,
+       .size = 32 * 1024 * 1024
+      }
 };
 
 static struct mtd_partition partition_info_evb[] = {
-       { name: "PPChameleonEVB Nand Flash",
-                 offset: 0,
-                 size: 32*1024*1024 }
+      { .name = "PPChameleonEVB Nand Flash",
+       .offset = 0,
+       .size = 32 * 1024 * 1024
+      }
 };
 
 #define NUM_PARTITIONS 1
 
-extern int parse_cmdline_partitions(struct mtd_info *master,
-                                   struct mtd_partition **pparts,
-                                   const char *mtd_id);
+extern int parse_cmdline_partitions(struct mtd_info *master, struct mtd_partition **pparts, const char *mtd_id);
 #endif
 
-
 /*
  *     hardware specific access to control-lines
  */
-static void ppchameleon_hwcontrol(struct mtd_info *mtdinfo, int cmd)
+static void ppchameleon_hwcontrol(struct mtd_info *mtdinfo, int cmd,
+                                 unsigned int ctrl)
 {
-       switch(cmd) {
-
-       case NAND_CTL_SETCLE:
-               MACRO_NAND_CTL_SETCLE((unsigned long)CFG_NAND0_PADDR);
-               break;
-       case NAND_CTL_CLRCLE:
-               MACRO_NAND_CTL_CLRCLE((unsigned long)CFG_NAND0_PADDR);
-               break;
-       case NAND_CTL_SETALE:
-               MACRO_NAND_CTL_SETALE((unsigned long)CFG_NAND0_PADDR);
-               break;
-       case NAND_CTL_CLRALE:
-               MACRO_NAND_CTL_CLRALE((unsigned long)CFG_NAND0_PADDR);
-               break;
-       case NAND_CTL_SETNCE:
+       struct nand_chip *chip = mtd->priv;
+
+       if (ctrl & NAND_CTRL_CHANGE) {
+#error Missing headerfiles. No way to fix this. -tglx
+               switch (cmd) {
+               case NAND_CTL_SETCLE:
+                       MACRO_NAND_CTL_SETCLE((unsigned long)CFG_NAND0_PADDR);
+                       break;
+               case NAND_CTL_CLRCLE:
+                       MACRO_NAND_CTL_CLRCLE((unsigned long)CFG_NAND0_PADDR);
+                       break;
+               case NAND_CTL_SETALE:
+                       MACRO_NAND_CTL_SETALE((unsigned long)CFG_NAND0_PADDR);
+                       break;
+               case NAND_CTL_CLRALE:
+                       MACRO_NAND_CTL_CLRALE((unsigned long)CFG_NAND0_PADDR);
+                       break;
+               case NAND_CTL_SETNCE:
                        MACRO_NAND_ENABLE_CE((unsigned long)CFG_NAND0_PADDR);
-               break;
-       case NAND_CTL_CLRNCE:
+                       break;
+               case NAND_CTL_CLRNCE:
                        MACRO_NAND_DISABLE_CE((unsigned long)CFG_NAND0_PADDR);
-               break;
+                       break;
+               }
        }
+       if (cmd != NAND_CMD_NONE)
+               writeb(cmd, chip->IO_ADDR_W);
 }
 
-static void ppchameleonevb_hwcontrol(struct mtd_info *mtdinfo, int cmd)
+static void ppchameleonevb_hwcontrol(struct mtd_info *mtdinfo, int cmd,
+                                    unsigned int ctrl)
 {
-       switch(cmd) {
-
-       case NAND_CTL_SETCLE:
-               MACRO_NAND_CTL_SETCLE((unsigned long)CFG_NAND1_PADDR);
-               break;
-       case NAND_CTL_CLRCLE:
-               MACRO_NAND_CTL_CLRCLE((unsigned long)CFG_NAND1_PADDR);
-               break;
-       case NAND_CTL_SETALE:
-               MACRO_NAND_CTL_SETALE((unsigned long)CFG_NAND1_PADDR);
-               break;
-       case NAND_CTL_CLRALE:
-               MACRO_NAND_CTL_CLRALE((unsigned long)CFG_NAND1_PADDR);
-               break;
-       case NAND_CTL_SETNCE:
-               MACRO_NAND_ENABLE_CE((unsigned long)CFG_NAND1_PADDR);
-               break;
-       case NAND_CTL_CLRNCE:
-               MACRO_NAND_DISABLE_CE((unsigned long)CFG_NAND1_PADDR);
-               break;
+       struct nand_chip *chip = mtd->priv;
+
+       if (ctrl & NAND_CTRL_CHANGE) {
+#error Missing headerfiles. No way to fix this. -tglx
+               switch (cmd) {
+               case NAND_CTL_SETCLE:
+                       MACRO_NAND_CTL_SETCLE((unsigned long)CFG_NAND1_PADDR);
+                       break;
+               case NAND_CTL_CLRCLE:
+                       MACRO_NAND_CTL_CLRCLE((unsigned long)CFG_NAND1_PADDR);
+                       break;
+               case NAND_CTL_SETALE:
+                       MACRO_NAND_CTL_SETALE((unsigned long)CFG_NAND1_PADDR);
+                       break;
+               case NAND_CTL_CLRALE:
+                       MACRO_NAND_CTL_CLRALE((unsigned long)CFG_NAND1_PADDR);
+                       break;
+               case NAND_CTL_SETNCE:
+                       MACRO_NAND_ENABLE_CE((unsigned long)CFG_NAND1_PADDR);
+                       break;
+               case NAND_CTL_CLRNCE:
+                       MACRO_NAND_DISABLE_CE((unsigned long)CFG_NAND1_PADDR);
+                       break;
+               }
        }
+       if (cmd != NAND_CMD_NONE)
+               writeb(cmd, chip->IO_ADDR_W);
 }
 
 #ifdef USE_READY_BUSY_PIN
@@ -164,15 +178,15 @@ static void ppchameleonevb_hwcontrol(struct mtd_info *mtdinfo, int cmd)
  */
 static int ppchameleon_device_ready(struct mtd_info *minfo)
 {
-       if (in_be32((volatile unsigned*)GPIO0_IR) & NAND_RB_GPIO_PIN)
+       if (in_be32((volatile unsigned *)GPIO0_IR) & NAND_RB_GPIO_PIN)
                return 1;
        return 0;
 }
 
 static int ppchameleonevb_device_ready(struct mtd_info *minfo)
 {
-       if (in_be32((volatile unsigned*)GPIO0_IR) & NAND_EVB_RB_GPIO_PIN)
-       return 1;
+       if (in_be32((volatile unsigned *)GPIO0_IR) & NAND_EVB_RB_GPIO_PIN)
+               return 1;
        return 0;
 }
 #endif
@@ -185,7 +199,7 @@ const char *part_probes_evb[] = { "cmdlinepart", NULL };
 /*
  * Main initialization routine
  */
-static int __init ppchameleonevb_init (void)
+static int __init ppchameleonevb_init(void)
 {
        struct nand_chip *this;
        const char *part_type = 0;
@@ -194,13 +208,11 @@ static int __init ppchameleonevb_init (void)
        void __iomem *ppchameleon_fio_base;
        void __iomem *ppchameleonevb_fio_base;
 
-
        /*********************************
        * Processor module NAND (if any) *
        *********************************/
        /* Allocate memory for MTD device structure and private data */
-       ppchameleon_mtd = kmalloc(sizeof(struct mtd_info) +
-                                                     sizeof(struct nand_chip), GFP_KERNEL);
+       ppchameleon_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL);
        if (!ppchameleon_mtd) {
                printk("Unable to allocate PPChameleon NAND MTD device structure.\n");
                return -ENOMEM;
@@ -208,63 +220,65 @@ static int __init ppchameleonevb_init (void)
 
        /* map physical address */
        ppchameleon_fio_base = ioremap(ppchameleon_fio_pbase, SZ_4M);
-       if(!ppchameleon_fio_base) {
+       if (!ppchameleon_fio_base) {
                printk("ioremap PPChameleon NAND flash failed\n");
                kfree(ppchameleon_mtd);
                return -EIO;
        }
 
        /* Get pointer to private data */
-       this = (struct nand_chip *) (&ppchameleon_mtd[1]);
+       this = (struct nand_chip *)(&ppchameleon_mtd[1]);
 
        /* Initialize structures */
-       memset((char *) ppchameleon_mtd, 0, sizeof(struct mtd_info));
-       memset((char *) this, 0, sizeof(struct nand_chip));
+       memset(ppchameleon_mtd, 0, sizeof(struct mtd_info));
+       memset(this, 0, sizeof(struct nand_chip));
 
        /* Link the private data with the MTD structure */
        ppchameleon_mtd->priv = this;
+       ppchameleon_mtd->owner = THIS_MODULE;
 
-        /* Initialize GPIOs */
+       /* Initialize GPIOs */
        /* Pin mapping for NAND chip */
        /*
-               CE      GPIO_01
-               CLE     GPIO_02
-               ALE     GPIO_03
-               R/B     GPIO_04
-       */
+          CE   GPIO_01
+          CLE  GPIO_02
+          ALE  GPIO_03
+          R/B  GPIO_04
+        */
        /* output select */
-       out_be32((volatile unsigned*)GPIO0_OSRH, in_be32((volatile unsigned*)GPIO0_OSRH) & 0xC0FFFFFF);
+       out_be32((volatile unsigned *)GPIO0_OSRH, in_be32((volatile unsigned *)GPIO0_OSRH) & 0xC0FFFFFF);
        /* three-state select */
-       out_be32((volatile unsigned*)GPIO0_TSRH, in_be32((volatile unsigned*)GPIO0_TSRH) & 0xC0FFFFFF);
+       out_be32((volatile unsigned *)GPIO0_TSRH, in_be32((volatile unsigned *)GPIO0_TSRH) & 0xC0FFFFFF);
        /* enable output driver */
-       out_be32((volatile unsigned*)GPIO0_TCR, in_be32((volatile unsigned*)GPIO0_TCR) | NAND_nCE_GPIO_PIN | NAND_CLE_GPIO_PIN | NAND_ALE_GPIO_PIN);
+       out_be32((volatile unsigned *)GPIO0_TCR,
+                in_be32((volatile unsigned *)GPIO0_TCR) | NAND_nCE_GPIO_PIN | NAND_CLE_GPIO_PIN | NAND_ALE_GPIO_PIN);
 #ifdef USE_READY_BUSY_PIN
        /* three-state select */
-       out_be32((volatile unsigned*)GPIO0_TSRH, in_be32((volatile unsigned*)GPIO0_TSRH) & 0xFF3FFFFF);
+       out_be32((volatile unsigned *)GPIO0_TSRH, in_be32((volatile unsigned *)GPIO0_TSRH) & 0xFF3FFFFF);
        /* high-impedecence */
-       out_be32((volatile unsigned*)GPIO0_TCR, in_be32((volatile unsigned*)GPIO0_TCR) & (~NAND_RB_GPIO_PIN));
+       out_be32((volatile unsigned *)GPIO0_TCR, in_be32((volatile unsigned *)GPIO0_TCR) & (~NAND_RB_GPIO_PIN));
        /* input select */
-       out_be32((volatile unsigned*)GPIO0_ISR1H, (in_be32((volatile unsigned*)GPIO0_ISR1H) & 0xFF3FFFFF) | 0x00400000);
+       out_be32((volatile unsigned *)GPIO0_ISR1H,
+                (in_be32((volatile unsigned *)GPIO0_ISR1H) & 0xFF3FFFFF) | 0x00400000);
 #endif
 
        /* insert callbacks */
        this->IO_ADDR_R = ppchameleon_fio_base;
        this->IO_ADDR_W = ppchameleon_fio_base;
-       this->hwcontrol = ppchameleon_hwcontrol;
+       this->cmd_ctrl = ppchameleon_hwcontrol;
 #ifdef USE_READY_BUSY_PIN
        this->dev_ready = ppchameleon_device_ready;
 #endif
        this->chip_delay = NAND_BIG_DELAY_US;
        /* ECC mode */
-       this->eccmode = NAND_ECC_SOFT;
+       this->ecc.mode = NAND_ECC_SOFT;
 
        /* Scan to find existence of the device (it could not be mounted) */
-       if (nand_scan (ppchameleon_mtd, 1)) {
+       if (nand_scan(ppchameleon_mtd, 1)) {
                iounmap((void *)ppchameleon_fio_base);
-               kfree (ppchameleon_mtd);
+               kfree(ppchameleon_mtd);
                goto nand_evb_init;
        }
-
 #ifndef USE_READY_BUSY_PIN
        /* Adjust delay if necessary */
        if (ppchameleon_mtd->size == NAND_SMALL_SIZE)
@@ -275,12 +289,11 @@ static int __init ppchameleonevb_init (void)
        ppchameleon_mtd->name = "ppchameleon-nand";
        mtd_parts_nb = parse_mtd_partitions(ppchameleon_mtd, part_probes, &mtd_parts, 0);
        if (mtd_parts_nb > 0)
-         part_type = "command line";
+               part_type = "command line";
        else
-         mtd_parts_nb = 0;
+               mtd_parts_nb = 0;
 #endif
-       if (mtd_parts_nb == 0)
-       {
+       if (mtd_parts_nb == 0) {
                if (ppchameleon_mtd->size == NAND_SMALL_SIZE)
                        mtd_parts = partition_info_me;
                else
@@ -293,13 +306,12 @@ static int __init ppchameleonevb_init (void)
        printk(KERN_NOTICE "Using %s partition definition\n", part_type);
        add_mtd_partitions(ppchameleon_mtd, mtd_parts, mtd_parts_nb);
 
-nand_evb_init:
+ nand_evb_init:
        /****************************
        * EVB NAND (always present) *
        ****************************/
        /* Allocate memory for MTD device structure and private data */
-       ppchameleonevb_mtd = kmalloc(sizeof(struct mtd_info) +
-                                                        sizeof(struct nand_chip), GFP_KERNEL);
+       ppchameleonevb_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL);
        if (!ppchameleonevb_mtd) {
                printk("Unable to allocate PPChameleonEVB NAND MTD device structure.\n");
                return -ENOMEM;
@@ -307,77 +319,76 @@ nand_evb_init:
 
        /* map physical address */
        ppchameleonevb_fio_base = ioremap(ppchameleonevb_fio_pbase, SZ_4M);
-       if(!ppchameleonevb_fio_base) {
+       if (!ppchameleonevb_fio_base) {
                printk("ioremap PPChameleonEVB NAND flash failed\n");
                kfree(ppchameleonevb_mtd);
                return -EIO;
        }
 
        /* Get pointer to private data */
-       this = (struct nand_chip *) (&ppchameleonevb_mtd[1]);
+       this = (struct nand_chip *)(&ppchameleonevb_mtd[1]);
 
        /* Initialize structures */
-       memset((char *) ppchameleonevb_mtd, 0, sizeof(struct mtd_info));
-       memset((char *) this, 0, sizeof(struct nand_chip));
+       memset(ppchameleonevb_mtd, 0, sizeof(struct mtd_info));
+       memset(this, 0, sizeof(struct nand_chip));
 
        /* Link the private data with the MTD structure */
        ppchameleonevb_mtd->priv = this;
 
-        /* Initialize GPIOs */
+       /* Initialize GPIOs */
        /* Pin mapping for NAND chip */
        /*
-               CE      GPIO_14
-               CLE     GPIO_15
-               ALE     GPIO_16
-               R/B     GPIO_31
-       */
+          CE   GPIO_14
+          CLE  GPIO_15
+          ALE  GPIO_16
+          R/B  GPIO_31
+        */
        /* output select */
-       out_be32((volatile unsigned*)GPIO0_OSRH, in_be32((volatile unsigned*)GPIO0_OSRH) & 0xFFFFFFF0);
-       out_be32((volatile unsigned*)GPIO0_OSRL, in_be32((volatile unsigned*)GPIO0_OSRL) & 0x3FFFFFFF);
+       out_be32((volatile unsigned *)GPIO0_OSRH, in_be32((volatile unsigned *)GPIO0_OSRH) & 0xFFFFFFF0);
+       out_be32((volatile unsigned *)GPIO0_OSRL, in_be32((volatile unsigned *)GPIO0_OSRL) & 0x3FFFFFFF);
        /* three-state select */
-       out_be32((volatile unsigned*)GPIO0_TSRH, in_be32((volatile unsigned*)GPIO0_TSRH) & 0xFFFFFFF0);
-       out_be32((volatile unsigned*)GPIO0_TSRL, in_be32((volatile unsigned*)GPIO0_TSRL) & 0x3FFFFFFF);
+       out_be32((volatile unsigned *)GPIO0_TSRH, in_be32((volatile unsigned *)GPIO0_TSRH) & 0xFFFFFFF0);
+       out_be32((volatile unsigned *)GPIO0_TSRL, in_be32((volatile unsigned *)GPIO0_TSRL) & 0x3FFFFFFF);
        /* enable output driver */
-       out_be32((volatile unsigned*)GPIO0_TCR, in_be32((volatile unsigned*)GPIO0_TCR) | NAND_EVB_nCE_GPIO_PIN |
+       out_be32((volatile unsigned *)GPIO0_TCR, in_be32((volatile unsigned *)GPIO0_TCR) | NAND_EVB_nCE_GPIO_PIN |
                 NAND_EVB_CLE_GPIO_PIN | NAND_EVB_ALE_GPIO_PIN);
 #ifdef USE_READY_BUSY_PIN
        /* three-state select */
-       out_be32((volatile unsigned*)GPIO0_TSRL, in_be32((volatile unsigned*)GPIO0_TSRL) & 0xFFFFFFFC);
+       out_be32((volatile unsigned *)GPIO0_TSRL, in_be32((volatile unsigned *)GPIO0_TSRL) & 0xFFFFFFFC);
        /* high-impedecence */
-       out_be32((volatile unsigned*)GPIO0_TCR, in_be32((volatile unsigned*)GPIO0_TCR) & (~NAND_EVB_RB_GPIO_PIN));
+       out_be32((volatile unsigned *)GPIO0_TCR, in_be32((volatile unsigned *)GPIO0_TCR) & (~NAND_EVB_RB_GPIO_PIN));
        /* input select */
-       out_be32((volatile unsigned*)GPIO0_ISR1L, (in_be32((volatile unsigned*)GPIO0_ISR1L) & 0xFFFFFFFC) | 0x00000001);
+       out_be32((volatile unsigned *)GPIO0_ISR1L,
+                (in_be32((volatile unsigned *)GPIO0_ISR1L) & 0xFFFFFFFC) | 0x00000001);
 #endif
 
        /* insert callbacks */
        this->IO_ADDR_R = ppchameleonevb_fio_base;
        this->IO_ADDR_W = ppchameleonevb_fio_base;
-       this->hwcontrol = ppchameleonevb_hwcontrol;
+       this->cmd_ctrl = ppchameleonevb_hwcontrol;
 #ifdef USE_READY_BUSY_PIN
        this->dev_ready = ppchameleonevb_device_ready;
 #endif
        this->chip_delay = NAND_SMALL_DELAY_US;
 
        /* ECC mode */
-       this->eccmode = NAND_ECC_SOFT;
+       this->ecc.mode = NAND_ECC_SOFT;
 
        /* Scan to find existence of the device */
-       if (nand_scan (ppchameleonevb_mtd, 1)) {
+       if (nand_scan(ppchameleonevb_mtd, 1)) {
                iounmap((void *)ppchameleonevb_fio_base);
-               kfree (ppchameleonevb_mtd);
+               kfree(ppchameleonevb_mtd);
                return -ENXIO;
        }
-
 #ifdef CONFIG_MTD_PARTITIONS
        ppchameleonevb_mtd->name = NAND_EVB_MTD_NAME;
        mtd_parts_nb = parse_mtd_partitions(ppchameleonevb_mtd, part_probes_evb, &mtd_parts, 0);
        if (mtd_parts_nb > 0)
-         part_type = "command line";
+               part_type = "command line";
        else
-         mtd_parts_nb = 0;
+               mtd_parts_nb = 0;
 #endif
-       if (mtd_parts_nb == 0)
-       {
+       if (mtd_parts_nb == 0) {
                mtd_parts = partition_info_evb;
                mtd_parts_nb = NUM_PARTITIONS;
                part_type = "static";
@@ -390,18 +401,19 @@ nand_evb_init:
        /* Return happy */
        return 0;
 }
+
 module_init(ppchameleonevb_init);
 
 /*
  * Clean up routine
  */
-static void __exit ppchameleonevb_cleanup (void)
+static void __exit ppchameleonevb_cleanup(void)
 {
        struct nand_chip *this;
 
        /* Release resources, unregister device(s) */
-       nand_release (ppchameleon_mtd);
-       nand_release (ppchameleonevb_mtd);
+       nand_release(ppchameleon_mtd);
+       nand_release(ppchameleonevb_mtd);
 
        /* Release iomaps */
        this = (struct nand_chip *) &ppchameleon_mtd[1];