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-rw-r--r--include/asm-m68k/uart.h171
1 files changed, 171 insertions, 0 deletions
diff --git a/include/asm-m68k/uart.h b/include/asm-m68k/uart.h
new file mode 100644
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--- /dev/null
+++ b/include/asm-m68k/uart.h
@@ -0,0 +1,171 @@
+/*
+ * uart.h -- ColdFire internal UART support defines.
+ *
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that 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
+ */
+
+/****************************************************************************/
+#ifndef uart_h
+#define uart_h
+/****************************************************************************/
+
+/* UART module registers */
+/* Register read/write struct */
+typedef struct uart {
+ u8 umr; /* 0x00 Mode Register */
+ u8 resv0[0x3];
+ union {
+ u8 usr; /* 0x04 Status Register */
+ u8 ucsr; /* 0x04 Clock Select Register */
+ };
+ u8 resv1[0x3];
+ u8 ucr; /* 0x08 Command Register */
+ u8 resv2[0x3];
+ union {
+ u8 utb; /* 0x0c Transmit Buffer */
+ u8 urb; /* 0x0c Receive Buffer */
+ };
+ u8 resv3[0x3];
+ union {
+ u8 uipcr; /* 0x10 Input Port Change Register */
+ u8 uacr; /* 0x10 Auxiliary Control reg */
+ };
+ u8 resv4[0x3];
+ union {
+ u8 uimr; /* 0x14 Interrupt Mask reg */
+ u8 uisr; /* 0x14 Interrupt Status reg */
+ };
+ u8 resv5[0x3];
+ u8 ubg1; /* 0x18 Counter Timer Upper Register */
+ u8 resv6[0x3];
+ u8 ubg2; /* 0x1c Counter Timer Lower Register */
+ u8 resv7[0x17];
+ u8 uip; /* 0x34 Input Port Register */
+ u8 resv8[0x3];
+ u8 uop1; /* 0x38 Output Port Set Register */
+ u8 resv9[0x3];
+ u8 uop0; /* 0x3c Output Port Reset Register */
+} uart_t;
+
+/*********************************************************************
+* Universal Asynchronous Receiver Transmitter (UART)
+*********************************************************************/
+/* Bit definitions and macros for UMR */
+#define UART_UMR_BC(x) (((x)&0x03))
+#define UART_UMR_PT (0x04)
+#define UART_UMR_PM(x) (((x)&0x03)<<3)
+#define UART_UMR_ERR (0x20)
+#define UART_UMR_RXIRQ (0x40)
+#define UART_UMR_RXRTS (0x80)
+#define UART_UMR_SB(x) (((x)&0x0F))
+#define UART_UMR_TXCTS (0x10) /* Trsnsmit CTS */
+#define UART_UMR_TXRTS (0x20) /* Transmit RTS */
+#define UART_UMR_CM(x) (((x)&0x03)<<6) /* CM bits */
+#define UART_UMR_PM_MULTI_ADDR (0x1C)
+#define UART_UMR_PM_MULTI_DATA (0x18)
+#define UART_UMR_PM_NONE (0x10)
+#define UART_UMR_PM_FORCE_HI (0x0C)
+#define UART_UMR_PM_FORCE_LO (0x08)
+#define UART_UMR_PM_ODD (0x04)
+#define UART_UMR_PM_EVEN (0x00)
+#define UART_UMR_BC_5 (0x00)
+#define UART_UMR_BC_6 (0x01)
+#define UART_UMR_BC_7 (0x02)
+#define UART_UMR_BC_8 (0x03)
+#define UART_UMR_CM_NORMAL (0x00)
+#define UART_UMR_CM_ECH (0x40)
+#define UART_UMR_CM_LOCAL_LOOP (0x80)
+#define UART_UMR_CM_REMOTE_LOOP (0xC0)
+#define UART_UMR_SB_STOP_BITS_1 (0x07)
+#define UART_UMR_SB_STOP_BITS_15 (0x08)
+#define UART_UMR_SB_STOP_BITS_2 (0x0F)
+
+/* Bit definitions and macros for USR */
+#define UART_USR_RXRDY (0x01)
+#define UART_USR_FFULL (0x02)
+#define UART_USR_TXRDY (0x04)
+#define UART_USR_TXEMP (0x08)
+#define UART_USR_OE (0x10)
+#define UART_USR_PE (0x20)
+#define UART_USR_FE (0x40)
+#define UART_USR_RB (0x80)
+
+/* Bit definitions and macros for UCSR */
+#define UART_UCSR_TCS(x) (((x)&0x0F))
+#define UART_UCSR_RCS(x) (((x)&0x0F)<<4)
+#define UART_UCSR_RCS_SYS_CLK (0xD0)
+#define UART_UCSR_RCS_CTM16 (0xE0)
+#define UART_UCSR_RCS_CTM (0xF0)
+#define UART_UCSR_TCS_SYS_CLK (0x0D)
+#define UART_UCSR_TCS_CTM16 (0x0E)
+#define UART_UCSR_TCS_CTM (0x0F)
+
+/* Bit definitions and macros for UCR */
+#define UART_UCR_RXC(x) (((x)&0x03))
+#define UART_UCR_TXC(x) (((x)&0x03)<<2)
+#define UART_UCR_MISC(x) (((x)&0x07)<<4)
+#define UART_UCR_NONE (0x00)
+#define UART_UCR_STOP_BREAK (0x70)
+#define UART_UCR_START_BREAK (0x60)
+#define UART_UCR_BKCHGINT (0x50)
+#define UART_UCR_RESET_ERROR (0x40)
+#define UART_UCR_RESET_TX (0x30)
+#define UART_UCR_RESET_RX (0x20)
+#define UART_UCR_RESET_MR (0x10)
+#define UART_UCR_TX_DISABLED (0x08)
+#define UART_UCR_TX_ENABLED (0x04)
+#define UART_UCR_RX_DISABLED (0x02)
+#define UART_UCR_RX_ENABLED (0x01)
+
+/* Bit definitions and macros for UIPCR */
+#define UART_UIPCR_CTS (0x01)
+#define UART_UIPCR_COS (0x10)
+
+/* Bit definitions and macros for UACR */
+#define UART_UACR_IEC (0x01)
+
+/* Bit definitions and macros for UIMR */
+#define UART_UIMR_TXRDY (0x01)
+#define UART_UIMR_RXRDY_FU (0x02)
+#define UART_UIMR_DB (0x04)
+#define UART_UIMR_COS (0x80)
+
+/* Bit definitions and macros for UISR */
+#define UART_UISR_TXRDY (0x01)
+#define UART_UISR_RXRDY_FU (0x02)
+#define UART_UISR_DB (0x04)
+#define UART_UISR_RXFTO (0x08)
+#define UART_UISR_TXFIFO (0x10)
+#define UART_UISR_RXFIFO (0x20)
+#define UART_UISR_COS (0x80)
+
+/* Bit definitions and macros for UIP */
+#define UART_UIP_CTS (0x01)
+
+/* Bit definitions and macros for UOP1 */
+#define UART_UOP1_RTS (0x01)
+
+/* Bit definitions and macros for UOP0 */
+#define UART_UOP0_RTS (0x01)
+
+/****************************************************************************/
+#endif /* mcfuart_h */