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path: root/drivers/serial/serial_mxc.c
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Diffstat (limited to 'drivers/serial/serial_mxc.c')
-rw-r--r--drivers/serial/serial_mxc.c40
1 files changed, 29 insertions, 11 deletions
diff --git a/drivers/serial/serial_mxc.c b/drivers/serial/serial_mxc.c
index af00b9c0ec..b0612f5aca 100644
--- a/drivers/serial/serial_mxc.c
+++ b/drivers/serial/serial_mxc.c
@@ -21,6 +21,8 @@
#include <watchdog.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/clock.h>
+#include <serial.h>
+#include <linux/compiler.h>
#define __REG(x) (*((volatile u32 *)(x)))
@@ -30,10 +32,6 @@
#define UART_PHYS CONFIG_MXC_UART_BASE
-#ifdef CONFIG_SERIAL_MULTI
-#warning "MXC driver does not support MULTI serials."
-#endif
-
/* Register definitions */
#define URXD 0x0 /* Receiver Register */
#define UTXD 0x40 /* Transmitter Register */
@@ -145,7 +143,7 @@
DECLARE_GLOBAL_DATA_PTR;
-void serial_setbrg (void)
+static void mxc_serial_setbrg(void)
{
u32 clk = imx_get_uartclk();
@@ -158,14 +156,14 @@ void serial_setbrg (void)
}
-int serial_getc (void)
+static int mxc_serial_getc(void)
{
while (__REG(UART_PHYS + UTS) & UTS_RXEMPTY)
WATCHDOG_RESET();
return (__REG(UART_PHYS + URXD) & URXD_RX_DATA); /* mask out status from upper word */
}
-void serial_putc (const char c)
+static void mxc_serial_putc(const char c)
{
__REG(UART_PHYS + UTXD) = c;
@@ -181,7 +179,7 @@ void serial_putc (const char c)
/*
* Test whether a character is in the RX buffer
*/
-int serial_tstc (void)
+static int mxc_serial_tstc(void)
{
/* If receive fifo is empty, return false */
if (__REG(UART_PHYS + UTS) & UTS_RXEMPTY)
@@ -189,8 +187,7 @@ int serial_tstc (void)
return 1;
}
-void
-serial_puts (const char *s)
+static void mxc_serial_puts(const char *s)
{
while (*s) {
serial_putc (*s++);
@@ -202,7 +199,7 @@ serial_puts (const char *s)
* are always 8 data bits, no parity, 1 stop bit, no start bits.
*
*/
-int serial_init (void)
+static int mxc_serial_init(void)
{
__REG(UART_PHYS + UCR1) = 0x0;
__REG(UART_PHYS + UCR2) = 0x0;
@@ -224,3 +221,24 @@ int serial_init (void)
return 0;
}
+
+static struct serial_device mxc_serial_drv = {
+ .name = "mxc_serial",
+ .start = mxc_serial_init,
+ .stop = NULL,
+ .setbrg = mxc_serial_setbrg,
+ .putc = mxc_serial_putc,
+ .puts = mxc_serial_puts,
+ .getc = mxc_serial_getc,
+ .tstc = mxc_serial_tstc,
+};
+
+void mxc_serial_initialize(void)
+{
+ serial_register(&mxc_serial_drv);
+}
+
+__weak struct serial_device *default_serial_console(void)
+{
+ return &mxc_serial_drv;
+}