From 102b0d2daa97dae68d3eed54d8fe37a9cc38a892 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 11:13:47 +0200 Subject: Adding upstream version 2.8.0+dfsg. Signed-off-by: Daniel Baumann --- include/drivers/cadence/cdns_uart.h | 44 +++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 include/drivers/cadence/cdns_uart.h (limited to 'include/drivers/cadence') diff --git a/include/drivers/cadence/cdns_uart.h b/include/drivers/cadence/cdns_uart.h new file mode 100644 index 0000000..30ca910 --- /dev/null +++ b/include/drivers/cadence/cdns_uart.h @@ -0,0 +1,44 @@ +/* + * Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef CDNS_UART_H +#define CDNS_UART_H + +#include + +/* This is very minimalistic and will only work in QEMU. */ + +/* CADENCE Registers */ +#define R_UART_CR 0 +#define R_UART_CR_RXRST (1 << 0) /* RX logic reset */ +#define R_UART_CR_TXRST (1 << 1) /* TX logic reset */ +#define R_UART_CR_RX_EN (1 << 2) /* RX enabled */ +#define R_UART_CR_TX_EN (1 << 4) /* TX enabled */ + +#define R_UART_SR 0x2C +#define UART_SR_INTR_REMPTY_BIT 1 +#define UART_SR_INTR_TFUL_BIT 4 +#define UART_SR_INTR_TEMPTY_BIT 3 + +#define R_UART_TX 0x30 +#define R_UART_RX 0x30 + +#ifndef __ASSEMBLER__ + +#include + +/* + * Initialize a new Cadence console instance and register it with the console + * framework. The |console| pointer must point to storage that will be valid + * for the lifetime of the console, such as a global or static local variable. + * Its contents will be reinitialized from scratch. + */ +int console_cdns_register(uintptr_t baseaddr, uint32_t clock, uint32_t baud, + console_t *console); + +#endif /*__ASSEMBLER__*/ + +#endif /* CDNS_UART_H */ -- cgit v1.2.3