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48 lines
1.6 KiB
C
48 lines
1.6 KiB
C
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/* GRLIB APBUART definitions
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*
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* (C) Copyright 2010, 2015
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* Daniel Hellstrom, Cobham Gaisler, daniel@gaisler.com
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __GRLIB_APBUART_H__
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#define __GRLIB_APBUART_H__
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/* APBUART Register map */
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typedef struct {
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volatile unsigned int data;
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volatile unsigned int status;
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volatile unsigned int ctrl;
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volatile unsigned int scaler;
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} ambapp_dev_apbuart;
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/*
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* The following defines the bits in the LEON UART Status Registers.
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*/
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#define APBUART_STATUS_DR 0x00000001 /* Data Ready */
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#define APBUART_STATUS_TSE 0x00000002 /* TX Send Register Empty */
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#define APBUART_STATUS_THE 0x00000004 /* TX Hold Register Empty */
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#define APBUART_STATUS_BR 0x00000008 /* Break Error */
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#define APBUART_STATUS_OE 0x00000010 /* RX Overrun Error */
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#define APBUART_STATUS_PE 0x00000020 /* RX Parity Error */
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#define APBUART_STATUS_FE 0x00000040 /* RX Framing Error */
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#define APBUART_STATUS_ERR 0x00000078 /* Error Mask */
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/*
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* The following defines the bits in the LEON UART Ctrl Registers.
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*/
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#define APBUART_CTRL_RE 0x00000001 /* Receiver enable */
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#define APBUART_CTRL_TE 0x00000002 /* Transmitter enable */
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#define APBUART_CTRL_RI 0x00000004 /* Receiver interrupt enable */
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#define APBUART_CTRL_TI 0x00000008 /* Transmitter interrupt enable */
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#define APBUART_CTRL_PS 0x00000010 /* Parity select */
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#define APBUART_CTRL_PE 0x00000020 /* Parity enable */
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#define APBUART_CTRL_FL 0x00000040 /* Flow control enable */
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#define APBUART_CTRL_LB 0x00000080 /* Loop Back enable */
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#define APBUART_CTRL_DBG (1<<11) /* Debug Bit used by GRMON */
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#endif
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