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/*
* File : uart.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006-2012, RT-Thread Develop Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2011-08-08 lgnq first version for LS1B
* 2015-07-06 chinesebear modified for loongson 1c
*/
#ifndef __UART_H__
#define __UART_H__
#include "ls1c.h"
#define DEV_CLK 252000000 // 252MHz
#define UART_BAUDRATE 115200
#define UART0_BASE 0xBFE40000
//#define UART0_1_BASE 0xBFE41000
#define UART1_BASE 0xBFE44000
#define UART2_BASE 0xBFE48000
#define UART3_BASE 0xBFE4C000
#define UART4_BASE 0xBFE4C400
#define UART5_BASE 0xBFE4C500
#define UART6_BASE 0xBFE4C600
#define UART7_BASE 0xBFE4C700
#define UART8_BASE 0xBFE4C800
#define UART9_BASE 0xBFE4C900
#define UART10_BASE 0xBFE4Ca00
#define UART11_BASE 0xBFE4Cb00
/* UART registers */
#define UART_DAT(base) __REG8(base + 0x00)
#define UART_IER(base) __REG8(base + 0x01)
#define UART_IIR(base) __REG8(base + 0x02)
#define UART_FCR(base) __REG8(base + 0x02)
#define UART_LCR(base) __REG8(base + 0x03)
#define UART_MCR(base) __REG8(base + 0x04)
#define UART_LSR(base) __REG8(base + 0x05)
#define UART_MSR(base) __REG8(base + 0x06)
#define UART_LSB(base) __REG8(base + 0x00)
#define UART_MSB(base) __REG8(base + 0x01)
/* UART0 registers */
#define UART0_DAT __REG8(UART0_BASE + 0x00)
#define UART0_IER __REG8(UART0_BASE + 0x01)
#define UART0_IIR __REG8(UART0_BASE + 0x02)
#define UART0_FCR __REG8(UART0_BASE + 0x02)
#define UART0_LCR __REG8(UART0_BASE + 0x03)
#define UART0_MCR __REG8(UART0_BASE + 0x04)
#define UART0_LSR __REG8(UART0_BASE + 0x05)
#define UART0_MSR __REG8(UART0_BASE + 0x06)
#define UART0_LSB __REG8(UART0_BASE + 0x00)
#define UART0_MSB __REG8(UART0_BASE + 0x01)
/* UART1 registers */
#define UART1_DAT __REG8(UART1_BASE + 0x00)
#define UART1_IER __REG8(UART1_BASE + 0x01)
#define UART1_IIR __REG8(UART1_BASE + 0x02)
#define UART1_FCR __REG8(UART1_BASE + 0x02)
#define UART1_LCR __REG8(UART1_BASE + 0x03)
#define UART1_MCR __REG8(UART1_BASE + 0x04)
#define UART1_LSR __REG8(UART1_BASE + 0x05)
#define UART1_MSR __REG8(UART1_BASE + 0x06)
#define UART1_LSB __REG8(UART1_BASE + 0x00)
#define UART1_MSB __REG8(UART1_BASE + 0x01)
/* UART interrupt enable register value */
#define UARTIER_IME (1 << 3)
#define UARTIER_ILE (1 << 2)
#define UARTIER_ITXE (1 << 1)
#define UARTIER_IRXE (1 << 0)
/* UART line control register value */
#define UARTLCR_DLAB (1 << 7)
#define UARTLCR_BCB (1 << 6)
#define UARTLCR_SPB (1 << 5)
#define UARTLCR_EPS (1 << 4)
#define UARTLCR_PE (1 << 3)
#define UARTLCR_SB (1 << 2)
/* UART line status register value */
#define UARTLSR_ERROR (1 << 7)
#define UARTLSR_TE (1 << 6)
#define UARTLSR_TFE (1 << 5)
#define UARTLSR_BI (1 << 4)
#define UARTLSR_FE (1 << 3)
#define UARTLSR_PE (1 << 2)
#define UARTLSR_OE (1 << 1)
#define UARTLSR_DR (1 << 0)
void rt_hw_uart_init(void);
#endif
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