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u-boot/arch/m68k/include/asm/uart.h

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SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-06 21:58:06 +00:00
/* SPDX-License-Identifier: GPL-2.0+ */
New uart structure and defines Seperated from mcfuart.h Signed-off-by: TsiChungLiew <Tsi-Chung.Liew@freescale.com>
2007-07-06 04:23:15 +00:00
/*
* uart.h -- ColdFire internal UART support defines.
*
* Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
* TsiChung Liew (Tsi-Chung.Liew@freescale.com)
*/
/****************************************************************************/
#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 */
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