[PATCH] m68knommu: add 5208 ColdFire UART support to ColdFire serial driver

Add support for the Freescale 5208 processor UART's to the common
ColdFire serial port code.

Patch originally from Matt Waddel (from code originally written by
Mike Lavender).

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/drivers/serial/mcfserial.c b/drivers/serial/mcfserial.c
index e2ebdca..47f7404 100644 (file)
--- a/drivers/serial/mcfserial.c
+++ b/drivers/serial/mcfserial.c
@@ -57,7 +57,8 @@ struct timer_list mcfrs_timer_struct;
  *     keep going.  Perhaps one day the cflag settings for the
  *     console can be used instead.
  */
-#if defined(CONFIG_ARNEWSH) || defined(CONFIG_MOTOROLA) || defined(CONFIG_senTec) || defined(CONFIG_SNEHA)
+#if defined(CONFIG_ARNEWSH) || defined(CONFIG_FREESCALE) || \
+    defined(CONFIG_senTec) || defined(CONFIG_SNEHA)
 #define        CONSOLE_BAUD_RATE       19200
 #define        DEFAULT_CBAUD           B19200
 #endif
@@ -67,7 +68,7 @@ struct timer_list mcfrs_timer_struct;
 #define        DEFAULT_CBAUD           B38400
 #endif
 
-#if defined(CONFIG_MOD5272)
+#if defined(CONFIG_MOD5272) || defined(CONFIG_M5208EVB)
 #define CONSOLE_BAUD_RATE      115200
 #define DEFAULT_CBAUD          B115200
 #endif
@@ -95,7 +96,8 @@ static struct tty_driver *mcfrs_serial_driver;
 #undef SERIAL_DEBUG_OPEN
 #undef SERIAL_DEBUG_FLOW
 
-#if defined(CONFIG_M523x) || defined(CONFIG_M527x) || defined(CONFIG_M528x)
+#if defined(CONFIG_M523x) || defined(CONFIG_M527x) || defined(CONFIG_M528x) || \
+    defined(CONFIG_M520x)
 #define        IRQBASE (MCFINT_VECBASE+MCFINT_UART0)
 #else
 #define        IRQBASE 73
@@ -1528,6 +1530,35 @@ static void mcfrs_irqinit(struct mcf_serial *info)
        imrp = (volatile unsigned long *) (MCF_MBAR + MCFICM_INTC0 +
                MCFINTC_IMRL);
        *imrp &= ~((1 << (info->irq - MCFINT_VECBASE)) | 1);
+#elif defined(CONFIG_M520x)
+       volatile unsigned char *icrp, *uartp;
+       volatile unsigned long *imrp;
+
+       uartp = info->addr;
+
+       icrp = (volatile unsigned char *) (MCF_MBAR + MCFICM_INTC0 +
+               MCFINTC_ICR0 + MCFINT_UART0 + info->line);
+       *icrp = 0x03;
+
+       imrp = (volatile unsigned long *) (MCF_MBAR + MCFICM_INTC0 +
+               MCFINTC_IMRL);
+       *imrp &= ~((1 << (info->irq - MCFINT_VECBASE)) | 1);
+       if (info->line < 2) {
+               unsigned short *uart_par;
+               uart_par = (unsigned short *)(MCF_IPSBAR + MCF_GPIO_PAR_UART);
+               if (info->line == 0)
+                       *uart_par |=  MCF_GPIO_PAR_UART_PAR_UTXD0
+                                 | MCF_GPIO_PAR_UART_PAR_URXD0;
+               else if (info->line == 1)
+                       *uart_par |=  MCF_GPIO_PAR_UART_PAR_UTXD1
+                                 | MCF_GPIO_PAR_UART_PAR_URXD1;
+               } else if (info->line == 2) {
+                       unsigned char *feci2c_par;
+                       feci2c_par = (unsigned char *)(MCF_IPSBAR +  MCF_GPIO_PAR_FECI2C);
+                       *feci2c_par &= ~0x0F;
+                       *feci2c_par |=  MCF_GPIO_PAR_FECI2C_PAR_SCL_UTXD2
+                                   | MCF_GPIO_PAR_FECI2C_PAR_SDA_URXD2;
+               }
 #else
        volatile unsigned char  *icrp, *uartp;