1 files changed, 80 insertions, 0 deletions

diff --git a/drivers/tty/serial/8250.h b/drivers/tty/serial/8250.h
new file mode 100644
index 000000000000..6e19ea3e48d5
--- /dev/null
+++ b/drivers/tty/serial/8250.h
@@ -0,0 +1,80 @@
+/*
+ *  linux/drivers/char/8250.h
+ *
+ *  Driver for 8250/16550-type serial ports
+ *
+ *  Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
+ *
+ *  Copyright (C) 2001 Russell King.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/serial_8250.h>
+
+struct old_serial_port {
+        unsigned int uart;
+        unsigned int baud_base;
+        unsigned int port;
+        unsigned int irq;
+        unsigned int flags;
+        unsigned char hub6;
+        unsigned char io_type;
+        unsigned char *iomem_base;
+        unsigned short iomem_reg_shift;
+        unsigned long irqflags;
+};
+
+/*
+ * This replaces serial_uart_config in include/linux/serial.h
+ */
+struct serial8250_config {
+        const char      *name;
+        unsigned short  fifo_size;
+        unsigned short  tx_loadsz;
+        unsigned char   fcr;
+        unsigned int    flags;
+};
+
+#define UART_CAP_FIFO   (1 << 8)        /* UART has FIFO */
+#define UART_CAP_EFR    (1 << 9)        /* UART has EFR */
+#define UART_CAP_SLEEP  (1 << 10)       /* UART has IER sleep */
+#define UART_CAP_AFE    (1 << 11)       /* MCR-based hw flow control */
+#define UART_CAP_UUE    (1 << 12)       /* UART needs IER bit 6 set (Xscale) */
+
+#define UART_BUG_QUOT   (1 << 0)        /* UART has buggy quot LSB */
+#define UART_BUG_TXEN   (1 << 1)        /* UART has buggy TX IIR status */
+#define UART_BUG_NOMSR  (1 << 2)        /* UART has buggy MSR status bits (Au1x00) */
+#define UART_BUG_THRE   (1 << 3)        /* UART has buggy THRE reassertion */
+
+#define PROBE_RSA       (1 << 0)
+#define PROBE_ANY       (~0)
+
+#define HIGH_BITS_OFFSET ((sizeof(long)-sizeof(int))*8)
+
+#ifdef CONFIG_SERIAL_8250_SHARE_IRQ
+#define SERIAL8250_SHARE_IRQS 1
+#else
+#define SERIAL8250_SHARE_IRQS 0
+#endif
+
+#if defined(__alpha__) && !defined(CONFIG_PCI)
+/*
+ * Digital did something really horribly wrong with the OUT1 and OUT2
+ * lines on at least some ALPHA's.  The failure mode is that if either
+ * is cleared, the machine locks up with endless interrupts.
+ */
+#define ALPHA_KLUDGE_MCR  (UART_MCR_OUT2 | UART_MCR_OUT1)
+#elif defined(CONFIG_SBC8560)
+/*
+ * WindRiver did something similarly broken on their SBC8560 board. The
+ * UART tristates its IRQ output while OUT2 is clear, but they pulled
+ * the interrupt line _up_ instead of down, so if we register the IRQ
+ * while the UART is in that state, we die in an IRQ storm. */
+#define ALPHA_KLUDGE_MCR (UART_MCR_OUT2)
+#else
+#define ALPHA_KLUDGE_MCR 0
+#endif