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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: Sascha Hauer <s.hauer@pengutronix.de>
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2 changed files with 43 additions and 0 deletions
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@ -109,4 +109,9 @@
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#define MXC_MAX_EXP_IO_LINES 16
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/* mandatory for CONFIG_LL_DEBUG */
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#define MXC_LL_UART_PADDR UART1_BASE_ADDR
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#define MXC_LL_UART_VADDR AIPS1_IO_ADDRESS(UART1_BASE_ADDR)
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#endif /* __ASM_ARCH_MXC_BOARD_MX31ADS_H__ */
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38
include/asm-arm/arch-mxc/debug-macro.S
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38
include/asm-arm/arch-mxc/debug-macro.S
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/* linux/include/asm-arm/arch-imx/debug-macro.S
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*
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* Debugging macro include header
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*
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* Copyright (C) 1994-1999 Russell King
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* Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include <asm/arch/hardware.h>
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#ifdef CONFIG_MACH_MX31ADS
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#include <asm/arch/board-mx31ads.h>
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#endif
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.macro addruart,rx
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mrc p15, 0, \rx, c1, c0
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tst \rx, #1 @ MMU enabled?
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ldreq \rx, =MXC_LL_UART_PADDR @ physical
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ldrne \rx, =MXC_LL_UART_VADDR @ virtual
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.endm
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.macro senduart,rd,rx
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str \rd, [\rx, #0x40] @ TXDATA
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.endm
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.macro waituart,rd,rx
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.endm
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.macro busyuart,rd,rx
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1002: ldr \rd, [\rx, #0x98] @ SR2
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tst \rd, #1 << 3 @ TXDC
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beq 1002b @ wait until transmit done
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.endm
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