serial: arm: Implement CONFIG_SERIAL_MULTI into mxc serial driver

[people/ms/u-boot.git] / drivers / serial / serial_mxc.c

diff --git a/drivers/serial/serial_mxc.c b/drivers/serial/serial_mxc.c
index af00b9c0ec426856eaf716466d087f9cf270cc72..0899e9bc812647f0d3ed4f87792adaf4f7f41f66 100644 (file)
--- 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)))
 
@@ -145,7 +147,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-void serial_setbrg (void)
+static void mxc_serial_setbrg(void)
 {
        u32 clk = imx_get_uartclk();
 
@@ -158,14 +160,14 @@ 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 +183,7 @@ 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 +191,7 @@ 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 +203,7 @@ 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 +225,56 @@ int serial_init (void)
 
        return 0;
 }
+
+#ifdef CONFIG_SERIAL_MULTI
+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;
+}
+#else
+int serial_init(void)
+{
+       return mxc_serial_init();
+}
+
+void serial_setbrg(void)
+{
+       mxc_serial_setbrg();
+}
+
+void serial_putc(const char c)
+{
+       mxc_serial_putc(c);
+}
+
+void serial_puts(const char *s)
+{
+       mxc_serial_puts(s);
+}
+
+int serial_getc(void)
+{
+       return mxc_serial_getc();
+}
+
+int serial_tstc(void)
+{
+       return mxc_serial_tstc();
+}
+#endif