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path: root/drivers/mtd/onenand/omap2.c
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Diffstat (limited to 'drivers/mtd/onenand/omap2.c')
-rw-r--r--drivers/mtd/onenand/omap2.c49
1 files changed, 16 insertions, 33 deletions
diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c
index ac31f461cc1..1fcb41adab0 100644
--- a/drivers/mtd/onenand/omap2.c
+++ b/drivers/mtd/onenand/omap2.c
@@ -63,7 +63,7 @@ struct omap2_onenand {
struct completion dma_done;
int dma_channel;
int freq;
- int (*setup)(void __iomem *base, int freq);
+ int (*setup)(void __iomem *base, int *freq_ptr);
struct regulator *regulator;
};
@@ -148,11 +148,9 @@ static int omap2_onenand_wait(struct mtd_info *mtd, int state)
wait_err("controller error", state, ctrl, intr);
return -EIO;
}
- if ((intr & intr_flags) != intr_flags) {
- wait_err("timeout", state, ctrl, intr);
- return -EIO;
- }
- return 0;
+ if ((intr & intr_flags) == intr_flags)
+ return 0;
+ /* Continue in wait for interrupt branch */
}
if (state != FL_READING) {
@@ -581,7 +579,7 @@ static int __adjust_timing(struct device *dev, void *data)
/* DMA is not in use so this is all that is needed */
/* Revisit for OMAP3! */
- ret = c->setup(c->onenand.base, c->freq);
+ ret = c->setup(c->onenand.base, &c->freq);
return ret;
}
@@ -610,7 +608,7 @@ static int omap2_onenand_enable(struct mtd_info *mtd)
ret = regulator_enable(c->regulator);
if (ret != 0)
- dev_err(&c->pdev->dev, "cant enable regulator\n");
+ dev_err(&c->pdev->dev, "can't enable regulator\n");
return ret;
}
@@ -622,7 +620,7 @@ static int omap2_onenand_disable(struct mtd_info *mtd)
ret = regulator_disable(c->regulator);
if (ret != 0)
- dev_err(&c->pdev->dev, "cant disable regulator\n");
+ dev_err(&c->pdev->dev, "can't disable regulator\n");
return ret;
}
@@ -631,6 +629,7 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev)
{
struct omap_onenand_platform_data *pdata;
struct omap2_onenand *c;
+ struct onenand_chip *this;
int r;
pdata = pdev->dev.platform_data;
@@ -673,7 +672,7 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev)
}
if (pdata->onenand_setup != NULL) {
- r = pdata->onenand_setup(c->onenand.base, c->freq);
+ r = pdata->onenand_setup(c->onenand.base, &c->freq);
if (r < 0) {
dev_err(&pdev->dev, "Onenand platform setup failed: "
"%d\n", r);
@@ -718,8 +717,8 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev)
}
dev_info(&pdev->dev, "initializing on CS%d, phys base 0x%08lx, virtual "
- "base %p\n", c->gpmc_cs, c->phys_base,
- c->onenand.base);
+ "base %p, freq %d MHz\n", c->gpmc_cs, c->phys_base,
+ c->onenand.base, c->freq);
c->pdev = pdev;
c->mtd.name = dev_name(&pdev->dev);
@@ -728,9 +727,8 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev)
c->mtd.dev.parent = &pdev->dev;
+ this = &c->onenand;
if (c->dma_channel >= 0) {
- struct onenand_chip *this = &c->onenand;
-
this->wait = omap2_onenand_wait;
if (cpu_is_omap34xx()) {
this->read_bufferram = omap3_onenand_read_bufferram;
@@ -751,27 +749,12 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev)
c->onenand.disable = omap2_onenand_disable;
}
+ if (pdata->skip_initial_unlocking)
+ this->options |= ONENAND_SKIP_INITIAL_UNLOCKING;
+
if ((r = onenand_scan(&c->mtd, 1)) < 0)
goto err_release_regulator;
- switch ((c->onenand.version_id >> 4) & 0xf) {
- case 0:
- c->freq = 40;
- break;
- case 1:
- c->freq = 54;
- break;
- case 2:
- c->freq = 66;
- break;
- case 3:
- c->freq = 83;
- break;
- case 4:
- c->freq = 104;
- break;
- }
-
#ifdef CONFIG_MTD_PARTITIONS
r = parse_mtd_partitions(&c->mtd, part_probes, &c->parts, 0);
if (r > 0)
@@ -860,7 +843,7 @@ static void __exit omap2_onenand_exit(void)
module_init(omap2_onenand_init);
module_exit(omap2_onenand_exit);
-MODULE_ALIAS(DRIVER_NAME);
+MODULE_ALIAS("platform:" DRIVER_NAME);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Jarkko Lavinen <jarkko.lavinen@nokia.com>");
MODULE_DESCRIPTION("Glue layer for OneNAND flash on OMAP2 / OMAP3");