[adm5120] switch to 2.6.28

[openwrt.git] / target / linux / adm5120 / files / arch / mips / include / asm / mach-adm5120 / adm5120_uart.h

diff --git a/target/linux/adm5120/files/arch/mips/include/asm/mach-adm5120/adm5120_uart.h b/target/linux/adm5120/files/arch/mips/include/asm/mach-adm5120/adm5120_uart.h
new file mode 100644 (file)
index 0000000..6308f6b
--- /dev/null
+++ b/target/linux/adm5120/files/arch/mips/include/asm/mach-adm5120/adm5120_uart.h
@@ -0,0 +1,64 @@
+/*
+ *  ADM5120 UART definitions
+ *
+ *  This header file defines the hardware registers of the ADM5120 SoC
+ *  built-in UARTs.
+ *
+ *  Copyright (C) 2007 Gabor Juhos <juhosg@openwrt.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ *
+ */
+
+#ifndef _MACH_ADM5120_UART_H
+#define _MACH_ADM5120_UART_H
+
+#define UART_BAUDDIV(clk, baud) ((clk/(16 * (baud)))-1)
+
+#define UART_REG_DATA  0x00
+#define UART_REG_RSR   0x04
+#define UART_REG_ECR   UART_REG_RSR
+#define UART_REG_LCRH  0x08
+#define UART_REG_LCRM  0x0C
+#define UART_REG_LCRL  0x10
+#define UART_REG_CTRL  0x14
+#define UART_REG_FLAG  0x18
+
+/* Receive Status Register bits */
+#define UART_RSR_FE    ( 1 << 0 )
+#define UART_RSR_PE    ( 1 << 1 )
+#define UART_RSR_BE    ( 1 << 2 )
+#define UART_RSR_OE    ( 1 << 3 )
+#define UART_RSR_ERR   ( UART_RSR_FE | UART_RSR_PE | UART_RSR_BE )
+
+#define UART_ECR_ALL   0xFF
+
+/* Line Control High register bits */
+#define UART_LCRH_BRK  ( 1 << 0 ) /* send break */
+#define UART_LCRH_PEN  ( 1 << 1 ) /* parity enable */
+#define UART_LCRH_EPS  ( 1 << 2 ) /* even parity select */
+#define UART_LCRH_STP1 ( 0 << 3 ) /* one stop bits select */
+#define UART_LCRH_STP2 ( 1 << 3 ) /* two stop bits select */
+#define UART_LCRH_FEN  ( 1 << 4 ) /* FIFO enable */
+
+#define UART_LCRH_WLEN5        ( 0 << 5 )
+#define UART_LCRH_WLEN6        ( 1 << 5 )
+#define UART_LCRH_WLEN7        ( 2 << 5 )
+#define UART_LCRH_WLEN8        ( 3 << 5 )
+
+/* Control register bits */
+#define UART_CTRL_EN   ( 1 << 0 )
+
+/* Flag register bits */
+#define UART_FLAG_CTS  ( 1 << 0 )
+#define UART_FLAG_DSR  ( 1 << 1 )
+#define UART_FLAG_DCD  ( 1 << 2 )
+#define UART_FLAG_BUSY ( 1 << 3 )
+#define UART_FLAG_RXFE ( 1 << 4 )
+#define UART_FLAG_TXFF ( 1 << 5 )
+#define UART_FLAG_RXFF ( 1 << 6 )
+#define UART_FLAG_TXFE ( 1 << 7 )
+
+#endif /* _MACH_ADM5120_UART_H */