1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
/* arch/arm/mach-imx/include/mach/debug-macro.S
*
* Debugging macro include header
*
* Copyright (C) 1994-1999 Russell King
* Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <mach/hardware.h>
#ifdef CONFIG_SOC_IMX1
#define UART_PADDR MX1_UART1_BASE_ADDR
#endif
#ifdef CONFIG_SOC_IMX25
#ifdef UART_PADDR
#error "CONFIG_DEBUG_LL is incompatible with multiple archs"
#endif
#define UART_PADDR MX25_UART1_BASE_ADDR
#endif
#if defined(CONFIG_SOC_IMX21) || defined (CONFIG_SOC_IMX27)
#ifdef UART_PADDR
#error "CONFIG_DEBUG_LL is incompatible with multiple archs"
#endif
#define UART_PADDR MX2x_UART1_BASE_ADDR
#endif
#if defined(CONFIG_SOC_IMX31) || defined(CONFIG_SOC_IMX35)
#ifdef UART_PADDR
#error "CONFIG_DEBUG_LL is incompatible with multiple archs"
#endif
#define UART_PADDR MX3x_UART1_BASE_ADDR
#endif
#ifdef CONFIG_SOC_IMX51
#ifdef UART_PADDR
#error "CONFIG_DEBUG_LL is incompatible with multiple archs"
#endif
#define UART_PADDR MX51_UART1_BASE_ADDR
#endif
/* iMX50/53 have same addresses, but not iMX51 */
#if defined(CONFIG_SOC_IMX50) || defined(CONFIG_SOC_IMX53)
#ifdef UART_PADDR
#error "CONFIG_DEBUG_LL is incompatible with multiple archs"
#endif
#define UART_PADDR MX53_UART1_BASE_ADDR
#endif
#define UART_VADDR IMX_IO_ADDRESS(UART_PADDR)
.macro addruart, rp, rv
ldr \rp, =UART_PADDR @ physical
ldr \rv, =UART_VADDR @ virtual
.endm
.macro senduart,rd,rx
str \rd, [\rx, #0x40] @ TXDATA
.endm
.macro waituart,rd,rx
.endm
.macro busyuart,rd,rx
1002: ldr \rd, [\rx, #0x98] @ SR2
tst \rd, #1 << 3 @ TXDC
beq 1002b @ wait until transmit done
.endm
|
