diff options
| author | huang lin <hl@rock-chips.com> | 2015-11-17 14:20:25 +0800 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-12-01 08:07:22 -0700 |
| commit | 07d8d35a612b30e37256179fc6fd40158bcb528e (patch) | |
| tree | fb247c1bfd8287336b504ee7616038ca7c19994e /arch/arm/include/asm | |
| parent | 2863724831a37b7ef84ba7490c4d41e678191b03 (diff) | |
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>
Diffstat (limited to 'arch/arm/include/asm')
| -rw-r--r-- | arch/arm/include/asm/arch-rockchip/uart.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-rockchip/uart.h b/arch/arm/include/asm/arch-rockchip/uart.h new file mode 100644 index 0000000000..ea86ce6514 --- /dev/null +++ b/arch/arm/include/asm/arch-rockchip/uart.h @@ -0,0 +1,44 @@ +/* + * (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 |