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Diffstat (limited to 'drivers/mtd/nand/davinci_nand.c')
-rw-r--r--drivers/mtd/nand/davinci_nand.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index 8a61a40f2ca9..0104d262dc89 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -637,9 +637,17 @@ static int nand_davinci_probe(struct platform_device *pdev)
if (IS_ERR(vaddr))
return PTR_ERR(vaddr);
- base = devm_ioremap_resource(&pdev->dev, res2);
- if (IS_ERR(base))
- return PTR_ERR(base);
+ /*
+ * This registers range is used to setup NAND settings. In case with
+ * TI AEMIF driver, the same memory address range is requested already
+ * by AEMIF, so we cannot request it twice, just ioremap.
+ * The AEMIF and NAND drivers not use the same registers in this range.
+ */
+ base = devm_ioremap(&pdev->dev, res2->start, resource_size(res2));
+ if (!base) {
+ dev_err(&pdev->dev, "ioremap failed for resource %pR\n", res2);
+ return -EADDRNOTAVAIL;
+ }
info->dev = &pdev->dev;
info->base = base;