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07d8d35a61
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>
45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
/*
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* (C) Copyright 2015 Rockchip Electronics Co., Ltd
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __ASM_ARCH_UART_H
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#define __ASM_ARCH_UART_H
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struct rk_uart {
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unsigned int rbr; /* Receive buffer register. */
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unsigned int ier; /* Interrupt enable register. */
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unsigned int fcr; /* FIFO control register. */
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unsigned int lcr; /* Line control register. */
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unsigned int mcr; /* Modem control register. */
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unsigned int lsr; /* Line status register. */
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unsigned int msr; /* Modem status register. */
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unsigned int scr;
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unsigned int reserved1[(0x30 - 0x20) / 4];
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unsigned int srbr[(0x70 - 0x30) / 4];
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unsigned int far;
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unsigned int tfr;
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unsigned int rfw;
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unsigned int usr;
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unsigned int tfl;
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unsigned int rfl;
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unsigned int srr;
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unsigned int srts;
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unsigned int sbcr;
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unsigned int sdmam;
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unsigned int sfe;
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unsigned int srt;
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unsigned int stet;
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unsigned int htx;
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unsigned int dmasa;
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unsigned int reserver2[(0xf4 - 0xac) / 4];
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unsigned int cpr;
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unsigned int ucv;
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unsigned int ctr;
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};
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void rk_uart_init(void *base);
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void print_hex(unsigned int n);
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void print(char *s);
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#endif
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