From a59c7b37b908639f9daa7fe50d4646b3947e2d62 Mon Sep 17 00:00:00 2001 From: Shiraz Hashim Date: Mon, 7 May 2012 13:00:24 +0530 Subject: [PATCH] st_smi: Move status register read before modifying ctrl register Signed-off-by: Shiraz Hashim Signed-off-by: Amit Virdi Signed-off-by: Stefan Roese --- drivers/mtd/st_smi.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/st_smi.c b/drivers/mtd/st_smi.c index 088c7c7b7c..8c276036af 100644 --- a/drivers/mtd/st_smi.c +++ b/drivers/mtd/st_smi.c @@ -148,7 +148,7 @@ static ulong flash_get_size(ulong base, int banknum) */ static int smi_read_sr(int bank) { - u32 ctrlreg1; + u32 ctrlreg1, val; /* store the CTRL REG1 state */ ctrlreg1 = readl(&smicntl->smi_cr1); @@ -163,10 +163,12 @@ static int smi_read_sr(int bank) if (smi_wait_xfer_finish(XFER_FINISH_TOUT)) return -1; + val = readl(&smicntl->smi_sr); + /* Restore the CTRL REG1 state */ writel(ctrlreg1, &smicntl->smi_cr1); - return readl(&smicntl->smi_sr); + return val; } /* -- 2.39.5