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Diffstat (limited to 'include/asm-mips/mips-boards/saa9730_uart.h')
-rw-r--r--include/asm-mips/mips-boards/saa9730_uart.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/include/asm-mips/mips-boards/saa9730_uart.h b/include/asm-mips/mips-boards/saa9730_uart.h
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+++ b/include/asm-mips/mips-boards/saa9730_uart.h
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+/*
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
+ *
+ * ########################################################################
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * ########################################################################
+ *
+ * Register definitions for the UART part of the Philips SAA9730 chip.
+ *
+ */
+
+#ifndef SAA9730_UART_H
+#define SAA9730_UART_H
+
+/* The SAA9730 UART register map, as seen via the PCI bus */
+
+#define SAA9730_UART_REGS_ADDR 0x21800
+
+struct uart_saa9730_regmap {
+ volatile unsigned char Thr_Rbr;
+ volatile unsigned char Ier;
+ volatile unsigned char Iir_Fcr;
+ volatile unsigned char Lcr;
+ volatile unsigned char Mcr;
+ volatile unsigned char Lsr;
+ volatile unsigned char Msr;
+ volatile unsigned char Scr;
+ volatile unsigned char BaudDivLsb;
+ volatile unsigned char BaudDivMsb;
+ volatile unsigned char Junk0;
+ volatile unsigned char Junk1;
+ volatile unsigned int Config; /* 0x2180c */
+ volatile unsigned int TxStart; /* 0x21810 */
+ volatile unsigned int TxLength; /* 0x21814 */
+ volatile unsigned int TxCounter; /* 0x21818 */
+ volatile unsigned int RxStart; /* 0x2181c */
+ volatile unsigned int RxLength; /* 0x21820 */
+ volatile unsigned int RxCounter; /* 0x21824 */
+};
+typedef volatile struct uart_saa9730_regmap t_uart_saa9730_regmap;
+
+/*
+ * Only a subset of the UART control bits are defined here,
+ * enough to make the serial debug port work.
+ */
+
+#define SAA9730_LCR_DATA8 0x03
+
+#define SAA9730_MCR_DTR 0x01
+#define SAA9730_MCR_RTS 0x02
+
+#define SAA9730_LSR_DR 0x01
+#define SAA9730_LSR_THRE 0x20
+
+#endif /* !(SAA9730_UART_H) */