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freebsd/sys/mips/atheros/ar933x_uart.h

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Commit initial (unfinished!) support for the AR933x series of embedded CPUs. The AR933x is a mips24k based SoC with an AR9380 series SoC on board, two gigabit ethernet interfaces and an internal 10/100mbit ethernet switch. There's also the normal interfaces (USB, ethernet, uart, GPIO.) The downside? There's a non-ns8250 UART device. With a very basic UART driver (not in this commit) the SoC is initialised and boots up. I'll commit the UART code soon and then link it into the general setup path. This code is a re-implementation based from the Linux kernel / openwrt AR933x support. TODO: * UART (obviously) * All of the ethernet, USB and wifi SoC glue, including ethernet PLL programming.
2013-03-27 03:38:58 +00:00
/*-
sys/mips: further adoption of SPDX licensing ID tags. Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
2017-11-27 15:07:26 +00:00
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
Commit initial (unfinished!) support for the AR933x series of embedded CPUs. The AR933x is a mips24k based SoC with an AR9380 series SoC on board, two gigabit ethernet interfaces and an internal 10/100mbit ethernet switch. There's also the normal interfaces (USB, ethernet, uart, GPIO.) The downside? There's a non-ns8250 UART device. With a very basic UART driver (not in this commit) the SoC is initialised and boots up. I'll commit the UART code soon and then link it into the general setup path. This code is a re-implementation based from the Linux kernel / openwrt AR933x support. TODO: * UART (obviously) * All of the ethernet, USB and wifi SoC glue, including ethernet PLL programming.
2013-03-27 03:38:58 +00:00
* Copyright (c) 2012 Adrian Chadd <adrian@FreeBSD.org>
* All rights reserved.
*
* 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 AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*/
/*
* Atheros AR933x SoC UART registers
*/
#ifndef __AR933X_UART_H__
#define __AR933X_UART_H__
#define AR933X_UART_REGS_SIZE 20
#define AR933X_UART_FIFO_SIZE 16
#define AR933X_UART_DATA_REG 0x00
#define AR933X_UART_CS_REG 0x04
#define AR933X_UART_CLOCK_REG 0x08
#define AR933X_UART_INT_REG 0x0c
#define AR933X_UART_INT_EN_REG 0x10
#define AR933X_UART_DATA_TX_RX_MASK 0xff
#define AR933X_UART_DATA_RX_CSR (1 << 8)
#define AR933X_UART_DATA_TX_CSR (1 << 9)
#define AR933X_UART_CS_PARITY_S 0
#define AR933X_UART_CS_PARITY_M 0x3
#define AR933X_UART_CS_PARITY_NONE 0
#define AR933X_UART_CS_PARITY_ODD 1
#define AR933X_UART_CS_PARITY_EVEN 2
#define AR933X_UART_CS_IF_MODE_S 2
#define AR933X_UART_CS_IF_MODE_M 0x3
#define AR933X_UART_CS_IF_MODE_NONE 0
#define AR933X_UART_CS_IF_MODE_DTE 1
#define AR933X_UART_CS_IF_MODE_DCE 2
#define AR933X_UART_CS_FLOW_CTRL_S 4
#define AR933X_UART_CS_FLOW_CTRL_M 0x3
#define AR933X_UART_CS_DMA_EN (1 << 6)
#define AR933X_UART_CS_TX_READY_ORIDE (1 << 7)
#define AR933X_UART_CS_RX_READY_ORIDE (1 << 8)
#define AR933X_UART_CS_TX_READY (1 << 9)
#define AR933X_UART_CS_RX_BREAK (1 << 10)
#define AR933X_UART_CS_TX_BREAK (1 << 11)
#define AR933X_UART_CS_HOST_INT (1 << 12)
#define AR933X_UART_CS_HOST_INT_EN (1 << 13)
#define AR933X_UART_CS_TX_BUSY (1 << 14)
#define AR933X_UART_CS_RX_BUSY (1 << 15)
* Fix clock register definitions * Add maximum clock register values
2013-03-29 06:32:02 +00:00
#define AR933X_UART_CLOCK_SCALE_M 0xff
Commit initial (unfinished!) support for the AR933x series of embedded CPUs. The AR933x is a mips24k based SoC with an AR9380 series SoC on board, two gigabit ethernet interfaces and an internal 10/100mbit ethernet switch. There's also the normal interfaces (USB, ethernet, uart, GPIO.) The downside? There's a non-ns8250 UART device. With a very basic UART driver (not in this commit) the SoC is initialised and boots up. I'll commit the UART code soon and then link it into the general setup path. This code is a re-implementation based from the Linux kernel / openwrt AR933x support. TODO: * UART (obviously) * All of the ethernet, USB and wifi SoC glue, including ethernet PLL programming.
2013-03-27 03:38:58 +00:00
#define AR933X_UART_CLOCK_SCALE_S 16
#define AR933X_UART_CLOCK_STEP_M 0xffff
* Fix clock register definitions * Add maximum clock register values
2013-03-29 06:32:02 +00:00
#define AR933X_UART_CLOCK_STEP_S 0
#define AR933X_UART_MAX_SCALE 0xff
#define AR933X_UART_MAX_STEP 0xffff
Commit initial (unfinished!) support for the AR933x series of embedded CPUs. The AR933x is a mips24k based SoC with an AR9380 series SoC on board, two gigabit ethernet interfaces and an internal 10/100mbit ethernet switch. There's also the normal interfaces (USB, ethernet, uart, GPIO.) The downside? There's a non-ns8250 UART device. With a very basic UART driver (not in this commit) the SoC is initialised and boots up. I'll commit the UART code soon and then link it into the general setup path. This code is a re-implementation based from the Linux kernel / openwrt AR933x support. TODO: * UART (obviously) * All of the ethernet, USB and wifi SoC glue, including ethernet PLL programming.
2013-03-27 03:38:58 +00:00
#define AR933X_UART_INT_RX_VALID (1 << 0)
#define AR933X_UART_INT_TX_READY (1 << 1)
#define AR933X_UART_INT_RX_FRAMING_ERR (1 << 2)
#define AR933X_UART_INT_RX_OFLOW_ERR (1 << 3)
#define AR933X_UART_INT_TX_OFLOW_ERR (1 << 4)
#define AR933X_UART_INT_RX_PARITY_ERR (1 << 5)
#define AR933X_UART_INT_RX_BREAK_ON (1 << 6)
#define AR933X_UART_INT_RX_BREAK_OFF (1 << 7)
#define AR933X_UART_INT_RX_FULL (1 << 8)
#define AR933X_UART_INT_TX_EMPTY (1 << 9)
#define AR933X_UART_INT_ALLINTS 0x3ff
#endif /* __AR933X_UART_H__ */
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