From 0916083210039bf3d186a87522cc806dc21b7097 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Tue, 15 Apr 2008 11:36:18 +0100 Subject: [PATCH] [MTD] [NAND] S3C2410 Fix previous nFCE suspend save patch Commit 03680b1e00d146df718c8a4eac34438566b70c85 incorrectly was assuming S3C2410_NFCONF was being used to select the NAND chip. Fix this error by ising the sel_reg. Signed-off-by: Ben Dooks Signed-off-by: David Woodhouse --- drivers/mtd/nand/s3c2410.c | 18 ++++++++---------- 1 file changed, 8 insertions(+), 10 deletions(-) diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index f3fa1be22ddf..8557c68dbb42 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -119,8 +119,7 @@ struct s3c2410_nand_info { void __iomem *sel_reg; int sel_bit; int mtd_count; - - unsigned long save_nfconf; + unsigned long save_sel; enum s3c_cpu_type cpu_type; }; @@ -810,15 +809,14 @@ static int s3c24xx_nand_suspend(struct platform_device *dev, pm_message_t pm) struct s3c2410_nand_info *info = platform_get_drvdata(dev); if (info) { - info->save_nfconf = readl(info->regs + S3C2410_NFCONF); + info->save_sel = readl(info->sel_reg); /* For the moment, we must ensure nFCE is high during * the time we are suspended. This really should be * handled by suspending the MTDs we are using, but * that is currently not the case. */ - writel(info->save_nfconf | info->sel_bit, - info->regs + S3C2410_NFCONF); + writel(info->save_sel | info->sel_bit, info->sel_reg); if (!allow_clk_stop(info)) clk_disable(info->clk); @@ -830,7 +828,7 @@ static int s3c24xx_nand_suspend(struct platform_device *dev, pm_message_t pm) static int s3c24xx_nand_resume(struct platform_device *dev) { struct s3c2410_nand_info *info = platform_get_drvdata(dev); - unsigned long nfconf; + unsigned long sel; if (info) { clk_enable(info->clk); @@ -838,10 +836,10 @@ static int s3c24xx_nand_resume(struct platform_device *dev) /* Restore the state of the nFCE line. */ - nfconf = readl(info->regs + S3C2410_NFCONF); - nfconf &= ~info->sel_bit; - nfconf |= info->save_nfconf & info->sel_bit; - writel(nfconf, info->regs + S3C2410_NFCONF); + sel = readl(info->sel_reg); + sel &= ~info->sel_bit; + sel |= info->save_sel & info->sel_bit; + writel(sel, info->sel_reg); if (allow_clk_stop(info)) clk_disable(info->clk); -- 2.34.1