639da5ee37
Some platforms (like OMAP not to name it) are doing rather complicated hacks just to determine the base UART address to use. Let's give their addruart macro some slack by providing an extra work register which will allow for much needed cleanups. This is basically a no-op as this commit is only adding the extra argument to the macro but no one is using it yet. Signed-off-by: nicolas Pitre <nicolas.pitre@linaro.org> Reviewed-by: Kevin Hilman <khilman@ti.com>
54 lines
1.2 KiB
ArmAsm
54 lines
1.2 KiB
ArmAsm
/* arch/arm/mach-msm7200/include/mach/debug-macro.S
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*
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* Copyright (C) 2007 Google, Inc.
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* Author: Brian Swetland <swetland@google.com>
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <mach/hardware.h>
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#include <mach/msm_iomap.h>
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#if defined(CONFIG_HAS_MSM_DEBUG_UART_PHYS) && !defined(CONFIG_MSM_DEBUG_UART_NONE)
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.macro addruart, rp, rv, tmp
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ldr \rp, =MSM_DEBUG_UART_PHYS
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ldr \rv, =MSM_DEBUG_UART_BASE
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.endm
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.macro senduart,rd,rx
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teq \rx, #0
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strne \rd, [\rx, #0x0C]
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.endm
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.macro waituart,rd,rx
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@ wait for TX_READY
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1001: ldr \rd, [\rx, #0x08]
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tst \rd, #0x04
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beq 1001b
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.endm
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#else
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.macro addruart, rp, rv, tmp
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mov \rv, #0xff000000
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orr \rv, \rv, #0x00f00000
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.endm
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.macro senduart,rd,rx
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.endm
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.macro waituart,rd,rx
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.endm
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#endif
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.macro busyuart,rd,rx
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.endm
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