serial: mxc: Use RFDIV in dm-code

Use RFDIV in dm-code instead of numeric value, so-that
it can be common for dm and non-dm.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/drivers/serial/serial_mxc.c b/drivers/serial/serial_mxc.c
index 9666e66d9bcf1e3a3e5212d5caaea942c4de3604..fbf8e51591a9425e4dd54508a932c24410314e8c 100644 (file)
--- a/drivers/serial/serial_mxc.c
+++ b/drivers/serial/serial_mxc.c
@@ -76,6 +76,7 @@
 #define  UFCR_RXTL_SHF   0       /* Receiver trigger level shift */
 #define  UFCR_RFDIV      (7<<7)  /* Reference freq divider mask */
 #define  UFCR_RFDIV_SHF  7      /* Reference freq divider shift */
+#define RFDIV          4 /* divide input clock by 2 */
 #define  UFCR_DCEDTE    (1<<6)  /* DTE mode select */
 #define  UFCR_TXTL_SHF   10      /* Transmitter trigger level shift */
 #define  USR1_PARITYERR  (1<<15) /* Parity error interrupt flag */
@@ -106,7 +107,7 @@
 #define  UTS_RXEMPTY    (1<<5)  /* RxFIFO empty */
 #define  UTS_TXFULL     (1<<4)  /* TxFIFO full */
 #define  UTS_RXFULL     (1<<3)  /* RxFIFO full */
-#define  UTS_SOFTRST    (1<<0)  /* Software reset */
+#define  UTS_SOFTRS    (1<<0)   /* Software reset */
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -146,7 +147,6 @@ struct mxc_uart {
 
 #define TXTL  2 /* reset default */
 #define RXTL  1 /* reset default */
-#define RFDIV 4 /* divide input clock by 2 */
 
 static void mxc_serial_setbrg(void)
 {
@@ -255,7 +255,7 @@ int mxc_serial_setbrg(struct udevice *dev, int baudrate)
        u32 clk = imx_get_uartclk();
        u32 tmp;
 
-       tmp = 4 << UFCR_RFDIV_SHF;
+       tmp = RFDIV << UFCR_RFDIV_SHF;
        if (plat->use_dte)
                tmp |= UFCR_DCEDTE;
        writel(tmp, &uart->fcr);