blob: 56d3fe663ee9910668db99d91902e2f3de27061f (
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--- linux-mips-cvs/drivers/char/serial.c 2004-12-27 05:13:43.000000000 +0100
+++ linux-broadcom/drivers/char/serial.c 2005-01-31 13:13:14.000000000 +0100
@@ -444,6 +444,10 @@
return inb(info->port+1);
#endif
case SERIAL_IO_MEM:
+#ifdef CONFIG_BCM4310
+ readb((unsigned long) info->iomem_base +
+ (UART_SCR<<info->iomem_reg_shift));
+#endif
return readb((unsigned long) info->iomem_base +
(offset<<info->iomem_reg_shift));
default:
@@ -464,6 +468,9 @@
case SERIAL_IO_MEM:
writeb(value, (unsigned long) info->iomem_base +
(offset<<info->iomem_reg_shift));
+#ifdef CONFIG_BCM4704
+ *((volatile unsigned int *) KSEG1ADDR(0x18000000));
+#endif
break;
default:
outb(value, info->port+offset);
@@ -5996,6 +6003,13 @@
* Divisor, bytesize and parity
*/
state = rs_table + co->index;
+ /*
+ * Safe guard: state structure must have been initialized
+ */
+ if (state->iomem_base == NULL) {
+ printk("!unable to setup serial console!\n");
+ return -1;
+ }
if (doflow)
state->flags |= ASYNC_CONS_FLOW;
info = &async_sercons;
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