u-boot/arch/arm/include/asm/arch-rockchip/uart.h
huang lin 07d8d35a61 rockchip: add early uart driver
add early uart driver so we can print debug message in
SPL stage

Signed-off-by: Lin Huang <hl@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-12-01 08:07:22 -07:00

44 lines
1.1 KiB
C

/*
* (C) Copyright 2015 Rockchip Electronics Co., Ltd
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __ASM_ARCH_UART_H
#define __ASM_ARCH_UART_H
struct rk_uart {
unsigned int rbr; /* Receive buffer register. */
unsigned int ier; /* Interrupt enable register. */
unsigned int fcr; /* FIFO control register. */
unsigned int lcr; /* Line control register. */
unsigned int mcr; /* Modem control register. */
unsigned int lsr; /* Line status register. */
unsigned int msr; /* Modem status register. */
unsigned int scr;
unsigned int reserved1[(0x30 - 0x20) / 4];
unsigned int srbr[(0x70 - 0x30) / 4];
unsigned int far;
unsigned int tfr;
unsigned int rfw;
unsigned int usr;
unsigned int tfl;
unsigned int rfl;
unsigned int srr;
unsigned int srts;
unsigned int sbcr;
unsigned int sdmam;
unsigned int sfe;
unsigned int srt;
unsigned int stet;
unsigned int htx;
unsigned int dmasa;
unsigned int reserver2[(0xf4 - 0xac) / 4];
unsigned int cpr;
unsigned int ucv;
unsigned int ctr;
};
void rk_uart_init(void *base);
void print_hex(unsigned int n);
void print(char *s);
#endif