st_smi: Move status register read before modifying ctrl register

Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: Amit Virdi <amit.virdi@st.com>
Signed-off-by: Stefan Roese <sr@denx.de>

diff --git a/drivers/mtd/st_smi.c b/drivers/mtd/st_smi.c
index 088c7c7b7c5c0f52c40fac863852b05e3eb02522..8c276036af78d714dcf59a6db470d63c79aef5bd 100644 (file)
--- 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;
 }
 
 /*