39 lines
1000 B
ArmAsm
39 lines
1000 B
ArmAsm
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/*
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* arch/arm/plat-spear/include/plat/debug-macro.S
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*
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* Debugging macro include header for spear platform
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*
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* Copyright (C) 2009 ST Microelectronics
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* Viresh Kumar<viresh.kumar@st.com>
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#include <linux/amba/serial.h>
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#include <mach/spear.h>
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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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moveq \rx, =SPEAR_DBG_UART_BASE @ Physical base
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movne \rx, =VA_SPEAR_DBG_UART_BASE @ Virtual base
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.endm
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.macro senduart, rd, rx
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strb \rd, [\rx, #UART01x_DR] @ ASC_TX_BUFFER
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.endm
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.macro waituart, rd, rx
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1001: ldr \rd, [\rx, #UART01x_FR] @ FLAG REGISTER
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tst \rd, #UART01x_FR_TXFF @ TX_FULL
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bne 1001b
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.endm
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.macro busyuart, rd, rx
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1002: ldr \rd, [\rx, #UART01x_FR] @ FLAG REGISTER
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tst \rd, #UART011_FR_TXFE @ TX_EMPTY
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beq 1002b
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.endm
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