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/*
* Copyright (c) 2019, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef __UART_H__
#define __UART_H__
#include <platform_def.h>
/* UART HW information */
#define HW_SUPPORT_UART_PORTS 2
#define DRV_SUPPORT_UART_PORTS 2
/* console UART clock cg */
#define UART_CLOCK_GATE_SET (INFRACFG_AO_BASE + 0x80)
#define UART_CLOCK_GATE_CLR (INFRACFG_AO_BASE + 0x84)
#define UART_CLOCK_GATE_STA (INFRACFG_AO_BASE + 0x90)
#define UART0_CLOCK_GATE_BIT (1U<<22)
#define UART1_CLOCK_GATE_BIT (1U<<23)
/* UART registers */
#define UART_RBR(_baseaddr) (_baseaddr + 0x0)
#define UART_THR(_baseaddr) (_baseaddr + 0x0)
#define UART_IER(_baseaddr) (_baseaddr + 0x4)
#define UART_IIR(_baseaddr) (_baseaddr + 0x8)
#define UART_FCR(_baseaddr) (_baseaddr + 0x8)
#define UART_LCR(_baseaddr) (_baseaddr + 0xc)
#define UART_MCR(_baseaddr) (_baseaddr + 0x10)
#define UART_LSR(_baseaddr) (_baseaddr + 0x14)
#define UART_MSR(_baseaddr) (_baseaddr + 0x18)
#define UART_SCR(_baseaddr) (_baseaddr + 0x1c)
#define UART_DLL(_baseaddr) (_baseaddr + 0x0)
#define UART_DLH(_baseaddr) (_baseaddr + 0x4)
#define UART_EFR(_baseaddr) (_baseaddr + 0x8)
#define UART_XON1(_baseaddr) (_baseaddr + 0x10)
#define UART_XON2(_baseaddr) (_baseaddr + 0x14)
#define UART_XOFF1(_baseaddr) (_baseaddr + 0x18)
#define UART_XOFF2(_baseaddr) (_baseaddr + 0x1c)
#define UART_AUTOBAUD(_baseaddr) (_baseaddr + 0x20)
#define UART_HIGHSPEED(_baseaddr) (_baseaddr + 0x24)
#define UART_SAMPLE_COUNT(_baseaddr) (_baseaddr + 0x28)
#define UART_SAMPLE_POINT(_baseaddr) (_baseaddr + 0x2c)
#define UART_AUTOBAUD_REG(_baseaddr) (_baseaddr + 0x30)
#define UART_RATE_FIX_REG(_baseaddr) (_baseaddr + 0x34)
#define UART_AUTO_BAUDSAMPLE(_baseaddr) (_baseaddr + 0x38)
#define UART_GUARD(_baseaddr) (_baseaddr + 0x3c)
#define UART_ESCAPE_DAT(_baseaddr) (_baseaddr + 0x40)
#define UART_ESCAPE_EN(_baseaddr) (_baseaddr + 0x44)
#define UART_SLEEP_EN(_baseaddr) (_baseaddr + 0x48)
#define UART_DMA_EN(_baseaddr) (_baseaddr + 0x4c)
#define UART_RXTRI_AD(_baseaddr) (_baseaddr + 0x50)
#define UART_FRACDIV_L(_baseaddr) (_baseaddr + 0x54)
#define UART_FRACDIV_M(_baseaddr) (_baseaddr + 0x58)
#define UART_FCR_RD(_baseaddr) (_baseaddr + 0x5C)
#define UART_USB_RX_SEL(_baseaddr) (_baseaddr + 0xB0)
#define UART_SLEEP_REQ(_baseaddr) (_baseaddr + 0xB4)
#define UART_SLEEP_ACK(_baseaddr) (_baseaddr + 0xB8)
#define UART_SPM_SEL(_baseaddr) (_baseaddr + 0xBC)
#define UART_LCR_DLAB 0x0080
#define UART_LCR_MODE_B 0x00bf
enum uart_port_ID {
UART_PORT0 = 0,
UART_PORT1
};
struct mt_uart_register {
unsigned int dll;
unsigned int dlh;
unsigned int ier;
unsigned int lcr;
unsigned int mcr;
unsigned int fcr;
unsigned int lsr;
unsigned int scr;
unsigned int efr;
unsigned int highspeed;
unsigned int sample_count;
unsigned int sample_point;
unsigned int fracdiv_l;
unsigned int fracdiv_m;
unsigned int escape_en;
unsigned int guard;
unsigned int rx_sel;
};
struct mt_uart {
unsigned long base;
struct mt_uart_register registers;
};
/* external API */
void mt_uart_save(void);
void mt_uart_restore(void);
void mt_console_uart_cg(int on);
uint32_t mt_console_uart_cg_status(void);
#endif /* __UART_H__ */