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Commit 4bc25650 authored by Sascha Hauer's avatar Sascha Hauer Committed by Robert Schwebel
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MXC: add debug-macro.S for mxc 



This patch adds debug-macro.S for arch-mxc

Disadvantage: Due to the board specific UART definition, these macros (and
compile time) will fail for multi board kernels.

Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
parent d0f349fb

include/asm-arm/arch-mxc/board-mx31ads.h

+5 −0
Original line number Diff line number Diff line
@@ -109,4 +109,9 @@ 


#define MXC_MAX_EXP_IO_LINES	16



/* mandatory for CONFIG_LL_DEBUG */



#define MXC_LL_UART_PADDR	UART1_BASE_ADDR

#define MXC_LL_UART_VADDR	AIPS1_IO_ADDRESS(UART1_BASE_ADDR)



#endif /* __ASM_ARCH_MXC_BOARD_MX31ADS_H__ */

include/asm-arm/arch-mxc/debug-macro.S

0 → 100644
+38 −0
Original line number Diff line number Diff line 
/* linux/include/asm-arm/arch-imx/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 <asm/arch/hardware.h>



#ifdef CONFIG_MACH_MX31ADS

#include <asm/arch/board-mx31ads.h>

#endif



		.macro	addruart,rx

		mrc	p15, 0, \rx, c1, c0

		tst	\rx, #1			@ MMU enabled?

		ldreq	\rx, =MXC_LL_UART_PADDR	@ physical

		ldrne	\rx, =MXC_LL_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