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Russell Kinga09e64f2008-08-05 16:14:15 +01001/* arch/arm/mach-imx/include/mach/debug-macro.S
2 *
3 * Debugging macro include header
4 *
5 * Copyright (C) 1994-1999 Russell King
6 * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 *
12 */
13
Sascha Hauerccc1a6f2009-06-04 13:45:37 +020014#ifdef CONFIG_ARCH_MX1
15#include <mach/mx1.h>
16#define UART_PADDR UART1_BASE_ADDR
17#define UART_VADDR IO_ADDRESS(UART1_BASE_ADDR)
18#endif
Russell Kinga09e64f2008-08-05 16:14:15 +010019
Sascha Hauer8c25c362009-06-04 11:32:12 +020020#ifdef CONFIG_ARCH_MX25
21#ifdef UART_PADDR
22#error "CONFIG_DEBUG_LL is incompatible with multiple archs"
23#endif
24#include <mach/mx25.h>
25#define UART_PADDR UART1_BASE_ADDR
26#define UART_VADDR MX25_AIPS1_IO_ADDRESS(UART1_BASE_ADDR)
27#endif
28
Sascha Hauerccc1a6f2009-06-04 13:45:37 +020029#ifdef CONFIG_ARCH_MX2
30#ifdef UART_PADDR
31#error "CONFIG_DEBUG_LL is incompatible with multiple archs"
Russell Kinga09e64f2008-08-05 16:14:15 +010032#endif
Sascha Hauerccc1a6f2009-06-04 13:45:37 +020033#include <mach/mx2x.h>
34#define UART_PADDR UART1_BASE_ADDR
35#define UART_VADDR AIPI_IO_ADDRESS(UART1_BASE_ADDR)
Russell Kinga09e64f2008-08-05 16:14:15 +010036#endif
Sascha Hauerccc1a6f2009-06-04 13:45:37 +020037
38#ifdef CONFIG_ARCH_MX3
39#ifdef UART_PADDR
40#error "CONFIG_DEBUG_LL is incompatible with multiple archs"
Russell Kinga09e64f2008-08-05 16:14:15 +010041#endif
Sascha Hauerccc1a6f2009-06-04 13:45:37 +020042#include <mach/mx3x.h>
43#define UART_PADDR UART1_BASE_ADDR
44#define UART_VADDR AIPS1_IO_ADDRESS(UART1_BASE_ADDR)
Russell Kinga09e64f2008-08-05 16:14:15 +010045#endif
Sascha Hauerccc1a6f2009-06-04 13:45:37 +020046
Russell Kinga09e64f2008-08-05 16:14:15 +010047 .macro addruart,rx
48 mrc p15, 0, \rx, c1, c0
49 tst \rx, #1 @ MMU enabled?
Sascha Hauerccc1a6f2009-06-04 13:45:37 +020050 ldreq \rx, =UART_PADDR @ physical
51 ldrne \rx, =UART_VADDR @ virtual
Russell Kinga09e64f2008-08-05 16:14:15 +010052 .endm
53
54 .macro senduart,rd,rx
55 str \rd, [\rx, #0x40] @ TXDATA
56 .endm
57
58 .macro waituart,rd,rx
59 .endm
60
61 .macro busyuart,rd,rx
621002: ldr \rd, [\rx, #0x98] @ SR2
63 tst \rd, #1 << 3 @ TXDC
64 beq 1002b @ wait until transmit done
65 .endm