generic_or1k.h

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/* SPDX-License-Identifier: BSD-2-Clause */
 
/*
 * COPYRIGHT (c) 2014-2015 Hesham ALMatary <heshamelmatary@gmail.com>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
 
#ifndef LIBBSP_GENERIC_OR1K_H
#define LIBBSP_GENERIC_OR1K_H
 
#include <stdint.h>
 
 #define OR1K_REG(x)           (*((volatile unsigned char *) (x)))
 #define OR1K_BIT(n)           (1 << (n))
 
#define OR1K_BSP_CLOCK_FREQ       50000000UL
#define OR1K_BSP_UART_BASE        0x90000000
 
#define OR1K_BSP_UART_REG_TX              (OR1K_BSP_UART_BASE+0)
#define OR1K_BSP_UART_REG_RX              (OR1K_BSP_UART_BASE+0)
#define OR1K_BSP_UART_REG_DEV_LATCH_LOW   (OR1K_BSP_UART_BASE+0)
#define OR1K_BSP_UART_REG_DEV_LATCH_HIGH  (OR1K_BSP_UART_BASE+1)
#define OR1K_BSP_UART_REG_INT_ENABLE      (OR1K_BSP_UART_BASE+1)
#define OR1K_BSP_UART_REG_INT_ID          (OR1K_BSP_UART_BASE+2)
#define OR1K_BSP_UART_REG_FIFO_CTRL       (OR1K_BSP_UART_BASE+2)
#define OR1K_BSP_UART_REG_LINE_CTRL       (OR1K_BSP_UART_BASE+3)
#define OR1K_BSP_UART_REG_MODEM_CTRL      (OR1K_BSP_UART_BASE+4)
#define OR1K_BSP_UART_REG_LINE_STATUS     (OR1K_BSP_UART_BASE+5)
#define OR1K_BSP_UART_REG_MODEM_STATUS    (OR1K_BSP_UART_BASE+6)
#define OR1K_BSP_UART_REG_SCRATCH         (OR1K_BSP_UART_BASE+7)
 
/* FIFO Control Register */
#define OR1K_BSP_UART_REG_FIFO_CTRL_TRIGGER_1    (0x00)
#define OR1K_BSP_UART_REG_FIFO_CTRL_ENABLE_FIFO  (0x01)
#define OR1K_BSP_UART_REG_FIFO_CTRL_CLEAR_RCVR   (0x02)
#define OR1K_BSP_UART_REG_FIFO_CTRL_CLEAR_XMIT   (0x03)
#define OR1K_BSP_UART_REG_FIFO_CTRL_DMA_SELECT   (0x08)
#define OR1K_BSP_UART_REG_FIFO_CTRL_TRIGGER_4    (0x40)
#define OR1K_BSP_UART_REG_FIFO_CTRL_TRIGGER_8    (0x80)
#define OR1K_BSP_UART_REG_FIFO_CTRL_TRIGGER_14   (0xC0)
#define OR1K_BSP_UART_REG_FIFO_CTRL_TRIGGER_MASK (0xC0)
 
/* Line Control Register */
#define OR1K_BSP_UART_REG_LINE_CTRL_WLEN5  (0x00)
#define OR1K_BSP_UART_REG_LINE_CTRL_WLEN6  (0x01)
#define OR1K_BSP_UART_REG_LINE_CTRL_WLEN7  (0x02)
#define OR1K_BSP_UART_REG_LINE_CTRL_WLEN8  (0x03)
#define OR1K_BSP_UART_REG_LINE_CTRL_STOP   (0x04)
#define OR1K_BSP_UART_REG_LINE_CTRL_PARITY (0x08)
#define OR1K_BSP_UART_REG_LINE_CTRL_EPAR   (0x10)
#define OR1K_BSP_UART_REG_LINE_CTRL_SPAR   (0x20)
#define OR1K_BSP_UART_REG_LINE_CTRL_SBC    (0x40)
#define OR1K_BSP_UART_REG_LINE_CTRL_DLAB   (0x80)
 
/* Line Status Register */
#define OR1K_BSP_UART_REG_LINE_STATUS_DR   (0x01)
#define OR1K_BSP_UART_REG_LINE_STATUS_OE   (0x02)
#define OR1K_BSP_UART_REG_LINE_STATUS_PE   (0x04)
#define OR1K_BSP_UART_REG_LINE_STATUS_FE   (0x08)
#define OR1K_BSP_UART_REG_LINE_STATUS_BI   (0x10)
#define OR1K_BSP_UART_REG_LINE_STATUS_THRE (0x20)
#define OR1K_BSP_UART_REG_LINE_STATUS_TEMT (0x40)
 
/* Modem Control Register */
#define OR1K_BSP_UART_REG_MODEM_CTRL_DTR  (0x01)
#define OR1K_BSP_UART_REG_MODEM_CTRL_RTS  (0x02)
#define OR1K_BSP_UART_REG_MODEM_CTRL_OUT1 (0x04)
#define OR1K_BSP_UART_REG_MODEM_CTRL_OUT2 (0x08)
#define OR1K_BSP_UART_REG_MODEM_CTRL_LOOP (0x10)
 
/* Modem Status Register */
#define OR1K_BSP_UART_REG_MODEM_STATUS_DCTS (0x01)
#define OR1K_BSP_UART_REG_MODEM_STATUS_DDSR (0x02)
#define OR1K_BSP_UART_REG_MODEM_STATUS_TERI (0x04)
#define OR1K_BSP_UART_REG_MODEM_STATUS_DDCD (0x08)
#define OR1K_BSP_UART_REG_MODEM_STATUS_CTS  (0x10)
#define OR1K_BSP_UART_REG_MODEM_STATUS_DSR  (0x20)
#define OR1K_BSP_UART_REG_MODEM_STATUS_RI   (0x40)
#define OR1K_BSP_UART_REG_MODEM_STATUS_DCD  (0x80)
#define OR1K_BSP_UART_REG_MODEM_STATUS_ANY_DELTA (0x0F)
 
#endif /* LIBBSP_GENERIC_OR1K_H */