/* * Copyright (c) 2019, ARM Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ #ifndef __UART_H__ #define __UART_H__ #include /* 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__ */