sh: Add SH7785 Highlander board support (R7785RP).

This adds preliminary support for the SH7785-based Highlander board.
Some of the Highlander support code is reordered so that most of it
can be reused directly.

This also plugs in missing SH7785 checks in the places that need it,
as this is the first board to support the CPU.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 16 insertions, 4 deletions

diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 4b17f845f5cd..94deebda6da0 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -62,7 +62,7 @@ struct sci_port {
         unsigned int            type;
 
         /* Port IRQs: ERI, RXI, TXI, BRI (optional) */
-        unsigned int            irqs[SCIx_NR_IRQS]; 
+        unsigned int            irqs[SCIx_NR_IRQS];
 
         /* Port pin configuration */
         void                    (*init_pins)(struct uart_port *port,
@@ -351,7 +351,7 @@ static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
         } else {
 #ifdef CONFIG_CPU_SUBTYPE_SH7343
                 /* Nothing */
-#elif defined(CONFIG_CPU_SUBTYPE_SH7780)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7780) || defined(CONFIG_CPU_SUBTYPE_SH7785)
                 ctrl_outw(0x0080, SCSPTR0); /* Set RTS = 1 */
 #else
                 ctrl_outw(0x0080, SCSPTR2); /* Set RTS = 1 */
@@ -361,7 +361,9 @@ static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
 }
 #endif
 
-#if defined(CONFIG_CPU_SUBTYPE_SH7760) || defined(CONFIG_CPU_SUBTYPE_SH7780)
+#if defined(CONFIG_CPU_SUBTYPE_SH7760) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7780) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7785)
 static inline int scif_txroom(struct uart_port *port)
 {
         return SCIF_TXROOM_MAX - (sci_in(port, SCTFDR) & 0x7f);
@@ -1368,9 +1370,19 @@ static int __devinit sci_probe(struct platform_device *dev)
         struct plat_sci_port *p = dev->dev.platform_data;
         int i;
 
-        for (i = 0; p && p->flags != 0 && i < SCI_NPORTS; p++, i++) {
+        for (i = 0; p && p->flags != 0; p++, i++) {
                 struct sci_port *sciport = &sci_ports[i];
 
+                /* Sanity check */
+                if (unlikely(i == SCI_NPORTS)) {
+                        dev_notice(&dev->dev, "Attempting to register port "
+                                   "%d when only %d are available.\n",
+                                   i+1, SCI_NPORTS);
+                        dev_notice(&dev->dev, "Consider bumping "
+                                   "CONFIG_SERIAL_SH_SCI_NR_UARTS!\n");
+                        break;
+                }
+
                 sciport->port.mapbase   = p->mapbase;
 
                 /*