Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1fcf8ce51e7acc4b66904c4e159690c9467606b5
Commit: 1fcf8ce51e7acc4b66904c4e159690c9467606b5
Parent: 06ed24e5773346eb13579a4ae9599502bc78e4f7
Author: David Woodhouse <[EMAIL PROTECTED]>
AuthorDate: Sat Oct 6 14:59:32 2007 -0400
Committer: David Woodhouse <[EMAIL PROTECTED]>
CommitDate: Sat Oct 6 14:59:32 2007 -0400
[MTD] [NAND] Resume method for CAFÉ NAND controller
Originally from Marcelo; modified to put the original timing registers
back instead of 0xFFFFFFFF.
Signed-off-by: David Woodhouse <[EMAIL PROTECTED]>
---
drivers/mtd/nand/cafe_nand.c | 42 +++++++++++++++++++++++++++++++++++++++---
1 files changed, 39 insertions(+), 3 deletions(-)
diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c
index 0b3f840..e2832d0 100644
--- a/drivers/mtd/nand/cafe_nand.c
+++ b/drivers/mtd/nand/cafe_nand.c
@@ -827,15 +827,51 @@ static struct pci_device_id cafe_nand_tbl[] = {
MODULE_DEVICE_TABLE(pci, cafe_nand_tbl);
+static int cafe_nand_resume(struct pci_dev *pdev)
+{
+ uint32_t ctrl;
+ struct mtd_info *mtd = pci_get_drvdata(pdev);
+ struct cafe_priv *cafe = mtd->priv;
+
+ /* Start off by resetting the NAND controller completely */
+ cafe_writel(cafe, 1, NAND_RESET);
+ cafe_writel(cafe, 0, NAND_RESET);
+ cafe_writel(cafe, 0xffffffff, NAND_IRQ_MASK);
+
+ /* Restore timing configuration */
+ cafe_writel(cafe, timing[0], NAND_TIMING1);
+ cafe_writel(cafe, timing[1], NAND_TIMING2);
+ cafe_writel(cafe, timing[2], NAND_TIMING3);
+
+ /* Disable master reset, enable NAND clock */
+ ctrl = cafe_readl(cafe, GLOBAL_CTRL);
+ ctrl &= 0xffffeff0;
+ ctrl |= 0x00007000;
+ cafe_writel(cafe, ctrl | 0x05, GLOBAL_CTRL);
+ cafe_writel(cafe, ctrl | 0x0a, GLOBAL_CTRL);
+ cafe_writel(cafe, 0, NAND_DMA_CTRL);
+ cafe_writel(cafe, 0x7006, GLOBAL_CTRL);
+ cafe_writel(cafe, 0x700a, GLOBAL_CTRL);
+
+ /* Set up DMA address */
+ cafe_writel(cafe, cafe->dmaaddr & 0xffffffff, NAND_DMA_ADDR0);
+ if (sizeof(cafe->dmaaddr) > 4)
+ /* Shift in two parts to shut the compiler up */
+ cafe_writel(cafe, (cafe->dmaaddr >> 16) >> 16, NAND_DMA_ADDR1);
+ else
+ cafe_writel(cafe, 0, NAND_DMA_ADDR1);
+
+ /* Enable NAND IRQ in global IRQ mask register */
+ cafe_writel(cafe, 0x80000007, GLOBAL_IRQ_MASK);
+ return 0;
+}
+
static struct pci_driver cafe_nand_pci_driver = {
.name = "CAFÉ NAND",
.id_table = cafe_nand_tbl,
.probe = cafe_nand_probe,
.remove = __devexit_p(cafe_nand_remove),
-#ifdef CONFIG_PMx
- .suspend = cafe_nand_suspend,
.resume = cafe_nand_resume,
-#endif
};
static int cafe_nand_init(void)
-
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