[PATCH] ppc32: Add support for MPC8245 8250 serial ports on Sandpoint

Added platform device initialization for the two 8250 style UARTs that
exist on the MPC8245.  Additionally, updated the Sandpoint code to enable
one of these UARTs if an MPC8245 is connected to it.

Signed-off-by: Matt McClintock <msm@freescale.com>
Signed-off-by: Kumar Gala <kumar.gala@freescale.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/arch/ppc/platforms/sandpoint.c b/arch/ppc/platforms/sandpoint.c
index 531bfa0e4512..70e58f43f2b8 100644
--- a/arch/ppc/platforms/sandpoint.c
+++ b/arch/ppc/platforms/sandpoint.c
@@ -81,6 +81,7 @@
 #include <linux/serial.h>
 #include <linux/tty.h>  /* for linux/serial_core.h */
 #include <linux/serial_core.h>
+#include <linux/serial_8250.h>
 
 #include <asm/system.h>
 #include <asm/pgtable.h>
@@ -99,6 +100,7 @@
 #include <asm/mpc10x.h>
 #include <asm/pci-bridge.h>
 #include <asm/kgdb.h>
+#include <asm/ppc_sys.h>
 
 #include "sandpoint.h"
 
@@ -305,6 +307,24 @@ sandpoint_setup_arch(void)
         /* Lookup PCI host bridges */
         sandpoint_find_bridges();
 
+        if (strncmp (cur_ppc_sys_spec->ppc_sys_name, "8245", 4) == 0)
+        {
+                bd_t *bp = (bd_t *)__res;
+                struct plat_serial8250_port *pdata;
+                pdata = (struct plat_serial8250_port *) ppc_sys_get_pdata(MPC10X_DUART);
+
+                if (pdata)
+                {
+                        pdata[0].uartclk = bp->bi_busfreq;
+                        pdata[0].membase = ioremap(pdata[0].mapbase, 0x100);
+
+                        /* this disables the 2nd serial port on the DUART
+                         * since the sandpoint does not have it connected */
+                        pdata[1].uartclk = 0;
+                        pdata[1].irq = 0;
+                        pdata[1].mapbase = 0;
+                }
+
         printk(KERN_INFO "Motorola SPS Sandpoint Test Platform\n");
         printk(KERN_INFO "Port by MontaVista Software, Inc. (source@mvista.com)\n");