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serial: ns16550: use a const variable instead of macro

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Just for type checking.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Masahiro Yamada
2014-07-11 20:29:04 +09:00
committed by Tom Rini
parent f8c7c2033d
commit 5b9587ae31
1 changed files with 3 additions and 3 deletions
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6
drivers/serial/serial_ns16550.c
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@@ -120,6 +120,8 @@ static NS16550_t serial_ports[6] = {
static int calc_divisor (NS16550_t port) static int calc_divisor (NS16550_t port)
{ {
const unsigned int mode_x_div = 16;
#ifdef CONFIG_OMAP1510 #ifdef CONFIG_OMAP1510
/* If can't cleanly clock 115200 set div to 1 */ /* If can't cleanly clock 115200 set div to 1 */
if ((CONFIG_SYS_NS16550_CLK == 12000000) && (gd->baudrate == 115200)) { if ((CONFIG_SYS_NS16550_CLK == 12000000) && (gd->baudrate == 115200)) {
@@ -129,10 +131,8 @@ static int calc_divisor (NS16550_t port)
port->osc_12m_sel = 0; /* clear if previsouly set */ port->osc_12m_sel = 0; /* clear if previsouly set */
#endif #endif
#define MODE_X_DIV 16
return DIV_ROUND_CLOSEST(CONFIG_SYS_NS16550_CLK, return DIV_ROUND_CLOSEST(CONFIG_SYS_NS16550_CLK,
MODE_X_DIV * gd->baudrate); mode_x_div * gd->baudrate);
} }
void void