adm5120: add 3.18 support

[openwrt/svn-archive/archive.git] / target / linux / adm5120 / files-3.18 / arch / mips / include / asm / mach-adm5120 / adm5120_uart.h

diff --git a/target/linux/adm5120/files-3.18/arch/mips/include/asm/mach-adm5120/adm5120_uart.h b/target/linux/adm5120/files-3.18/arch/mips/include/asm/mach-adm5120/adm5120_uart.h
new file mode 100644 (file)
index 0000000..81d3067
--- /dev/null
+++ b/target/linux/adm5120/files-3.18/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 */