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path: root/drivers/mtd/nand/ppchameleonevb.c
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Diffstat (limited to 'drivers/mtd/nand/ppchameleonevb.c')
-rw-r--r--drivers/mtd/nand/ppchameleonevb.c181
1 files changed, 89 insertions, 92 deletions
diff --git a/drivers/mtd/nand/ppchameleonevb.c b/drivers/mtd/nand/ppchameleonevb.c
index 91a95f34a6e..405beece9c5 100644
--- a/drivers/mtd/nand/ppchameleonevb.c
+++ b/drivers/mtd/nand/ppchameleonevb.c
@@ -58,21 +58,21 @@
/*
* 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
@@ -80,80 +80,80 @@ __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)
{
- switch(cmd) {
+ switch (cmd) {
case NAND_CTL_SETCLE:
- MACRO_NAND_CTL_SETCLE((unsigned long)CFG_NAND0_PADDR);
+ MACRO_NAND_CTL_SETCLE((unsigned long)CFG_NAND0_PADDR);
break;
case NAND_CTL_CLRCLE:
- MACRO_NAND_CTL_CLRCLE((unsigned long)CFG_NAND0_PADDR);
+ MACRO_NAND_CTL_CLRCLE((unsigned long)CFG_NAND0_PADDR);
break;
case NAND_CTL_SETALE:
- MACRO_NAND_CTL_SETALE((unsigned long)CFG_NAND0_PADDR);
+ MACRO_NAND_CTL_SETALE((unsigned long)CFG_NAND0_PADDR);
break;
case NAND_CTL_CLRALE:
- MACRO_NAND_CTL_CLRALE((unsigned long)CFG_NAND0_PADDR);
+ MACRO_NAND_CTL_CLRALE((unsigned long)CFG_NAND0_PADDR);
break;
case NAND_CTL_SETNCE:
- MACRO_NAND_ENABLE_CE((unsigned long)CFG_NAND0_PADDR);
+ MACRO_NAND_ENABLE_CE((unsigned long)CFG_NAND0_PADDR);
break;
case NAND_CTL_CLRNCE:
- MACRO_NAND_DISABLE_CE((unsigned long)CFG_NAND0_PADDR);
+ MACRO_NAND_DISABLE_CE((unsigned long)CFG_NAND0_PADDR);
break;
}
}
static void ppchameleonevb_hwcontrol(struct mtd_info *mtdinfo, int cmd)
{
- switch(cmd) {
+ switch (cmd) {
case NAND_CTL_SETCLE:
- MACRO_NAND_CTL_SETCLE((unsigned long)CFG_NAND1_PADDR);
+ MACRO_NAND_CTL_SETCLE((unsigned long)CFG_NAND1_PADDR);
break;
case NAND_CTL_CLRCLE:
- MACRO_NAND_CTL_CLRCLE((unsigned long)CFG_NAND1_PADDR);
+ MACRO_NAND_CTL_CLRCLE((unsigned long)CFG_NAND1_PADDR);
break;
case NAND_CTL_SETALE:
- MACRO_NAND_CTL_SETALE((unsigned long)CFG_NAND1_PADDR);
+ MACRO_NAND_CTL_SETALE((unsigned long)CFG_NAND1_PADDR);
break;
case NAND_CTL_CLRALE:
- MACRO_NAND_CTL_CLRALE((unsigned long)CFG_NAND1_PADDR);
+ MACRO_NAND_CTL_CLRALE((unsigned long)CFG_NAND1_PADDR);
break;
case NAND_CTL_SETNCE:
- MACRO_NAND_ENABLE_CE((unsigned long)CFG_NAND1_PADDR);
+ MACRO_NAND_ENABLE_CE((unsigned long)CFG_NAND1_PADDR);
break;
case NAND_CTL_CLRNCE:
- MACRO_NAND_DISABLE_CE((unsigned long)CFG_NAND1_PADDR);
+ MACRO_NAND_DISABLE_CE((unsigned long)CFG_NAND1_PADDR);
break;
}
}
@@ -164,15 +164,15 @@ 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 +185,7 @@ 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 +194,11 @@ 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;
@@ -208,43 +206,45 @@ 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;
- /* 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 */
@@ -259,12 +259,11 @@ static int __init ppchameleonevb_init (void)
this->eccmode = 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 +274,11 @@ 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 +291,12 @@ 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;
@@ -307,46 +304,47 @@ 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 */
@@ -362,22 +360,20 @@ nand_evb_init:
this->eccmode = 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 +386,19 @@ 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];