ARM: SAMSUNG: serial: Add FRACVAL support for newer UART

Add support for the FRACVAL register on the newer UART blocks which provides
the same function as UDIVSLOT register but the FRACVAL is easier to implement.
To support UDIVSLOT register, UDIVSLOT table search is necessary though
supporting FRACVAL only needs the index value of UDIVSLOT table.

Signed-off-by: Jongpill Lee <boyko.lee@samsung.com>
Acked-by: Changhwan Youn <chaos.youn@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/arm/plat-samsung/include/plat/regs-serial.h b/arch/arm/plat-samsung/include/plat/regs-serial.h
index a6eba8496b24..788837e99cb3 100644
--- a/arch/arm/plat-samsung/include/plat/regs-serial.h
+++ b/arch/arm/plat-samsung/include/plat/regs-serial.h
@@ -259,6 +259,8 @@ struct s3c2410_uartcfg {
         unsigned short     flags;
         upf_t              uart_flags;   /* default uart flags */
 
+        unsigned int       has_fracval;
+
         unsigned long      ucon;         /* value of ucon for port */
         unsigned long      ulcon;        /* value of ulcon for port */
         unsigned long      ufcon;        /* value of ufcon for port */