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