| /* |
| * |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| #ifndef __DRIVERS_UART_PL011_H |
| #define __DRIVERS_UART_PL011_H |
| |
| #include <stdint.h> |
| #include <types.h> |
| |
| /* PL011 r1p5 registers */ |
| struct pl011_uart { |
| u32 dr; |
| u32 rsr_ecr; |
| u8 rsvd1[0x10]; |
| u32 fr; |
| u8 rsvd2[0x4]; |
| u32 ilpr; |
| u32 ibrd; |
| u32 fbrd; |
| u32 lcr_h; |
| u32 cr; |
| u32 ifls; |
| u32 imsc; |
| u32 ris; |
| u32 mis; |
| u32 icr; |
| u32 dmacr; |
| u8 rsvd3[0xf94]; |
| u32 periphid0; |
| u32 periphid1; |
| u32 periphid2; |
| u32 periphid3; |
| u32 cellid0; |
| u32 cellid1; |
| u32 cellid2; |
| u32 cellid3; |
| }; |
| check_member(pl011_uart, cellid3, 0xffc); |
| |
| /*************************************************************************/ |
| /* Bit definitions from arm-trusted-firmware/include/drivers/arm/pl011.h */ |
| /*************************************************************************/ |
| /* Flag reg bits */ |
| #define PL011_UARTFR_RI (1 << 8) /* Ring indicator */ |
| #define PL011_UARTFR_TXFE (1 << 7) /* Transmit FIFO empty */ |
| #define PL011_UARTFR_RXFF (1 << 6) /* Receive FIFO full */ |
| #define PL011_UARTFR_TXFF (1 << 5) /* Transmit FIFO full */ |
| #define PL011_UARTFR_RXFE (1 << 4) /* Receive FIFO empty */ |
| #define PL011_UARTFR_BUSY (1 << 3) /* UART busy */ |
| #define PL011_UARTFR_DCD (1 << 2) /* Data carrier detect */ |
| #define PL011_UARTFR_DSR (1 << 1) /* Data set ready */ |
| #define PL011_UARTFR_CTS (1 << 0) /* Clear to send */ |
| |
| #define PL011_UARTFR_TXFF_BIT 5 /* Transmit FIFO full bit in |
| UARTFR register */ |
| #define PL011_UARTFR_RXFE_BIT 4 /* Receive FIFO empty bit in |
| UARTFR register */ |
| #define PL011_UARTFR_BUSY_BIT 3 /* UART busy bit in UARTFR |
| register */ |
| |
| /* Control reg bits */ |
| #define PL011_UARTCR_CTSEN (1 << 15) /* CTS hardware flow control |
| enable */ |
| #define PL011_UARTCR_RTSEN (1 << 14) /* RTS hardware flow control |
| enable */ |
| #define PL011_UARTCR_RTS (1 << 11) /* Request to send */ |
| #define PL011_UARTCR_DTR (1 << 10) /* Data transmit ready. */ |
| #define PL011_UARTCR_RXE (1 << 9) /* Receive enable */ |
| #define PL011_UARTCR_TXE (1 << 8) /* Transmit enable */ |
| #define PL011_UARTCR_LBE (1 << 7) /* Loopback enable */ |
| #define PL011_UARTCR_UARTEN (1 << 0) /* UART Enable */ |
| |
| /* FIFO Enabled / No Parity / 8 Data bit / One Stop Bit */ |
| #define PL011_LINE_CONTROL (PL011_UARTLCR_H_FEN | PL011_UARTLCR_H_WLEN_8) |
| |
| /* Line Control Register Bits */ |
| #define PL011_UARTLCR_H_SPS (1 << 7) /* Stick parity select */ |
| #define PL011_UARTLCR_H_WLEN_8 (3 << 5) |
| #define PL011_UARTLCR_H_WLEN_7 (2 << 5) |
| #define PL011_UARTLCR_H_WLEN_6 (1 << 5) |
| #define PL011_UARTLCR_H_WLEN_5 (0 << 5) |
| #define PL011_UARTLCR_H_FEN (1 << 4) /* FIFOs Enable */ |
| #define PL011_UARTLCR_H_STP2 (1 << 3) /* Two stop bits select */ |
| #define PL011_UARTLCR_H_EPS (1 << 2) /* Even parity select */ |
| #define PL011_UARTLCR_H_PEN (1 << 1) /* Parity Enable */ |
| #define PL011_UARTLCR_H_BRK (1 << 0) /* Send break */ |
| |
| #endif /* ! __DRIVERS_UART_PL011_H */ |