| Amit Nagal | 7c9f2fc | 2024-02-08 16:35:08 +0530 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved. |
| 3 | * Copyright (c) 2022-2024, Advanced Micro Devices, Inc. All rights reserved. |
| 4 | * |
| 5 | * SPDX-License-Identifier: BSD-3-Clause |
| 6 | */ |
| 7 | |
| 8 | #ifndef CDNS_UART_H |
| 9 | #define CDNS_UART_H |
| 10 | |
| 11 | #include <drivers/console.h> |
| 12 | #include <lib/utils_def.h> |
| 13 | /* This is very minimalistic and will only work in QEMU. */ |
| 14 | |
| 15 | /* CADENCE Registers */ |
| 16 | #define R_UART_CR 0 |
| 17 | #define R_UART_CR_RXRST (1 << 0) /* RX logic reset */ |
| 18 | #define R_UART_CR_TXRST (1 << 1) /* TX logic reset */ |
| 19 | #define R_UART_CR_RX_EN (1 << 2) /* RX enabled */ |
| 20 | #define R_UART_CR_TX_EN (1 << 4) /* TX enabled */ |
| 21 | |
| 22 | #define R_UART_SR 0x2C |
| 23 | #define UART_SR_INTR_REMPTY_BIT 1 |
| 24 | #define UART_SR_INTR_TFUL_BIT 4 |
| 25 | #define UART_SR_INTR_TEMPTY_BIT 3 |
| 26 | |
| 27 | #define R_UART_TX 0x30 |
| 28 | #define R_UART_RX 0x30 |
| 29 | |
| 30 | #define CONSOLE_T_BASE (U(5) * REGSZ) |
| 31 | |
| 32 | #endif /* CDNS_UART_H */ |