b85a3ef4ac
The 1st board support is minimal to get a system up and running on the Xilinx platform. This platform reuses the clock implementation from plat-versatile, and it depends entirely on CONFIG_OF support. There is only one board support file which obtains all device information from a device tree dtb file which is passed to the kernel at boot time. Signed-off-by: John Linn <john.linn@xilinx.com>
37 lines
1,012 B
ArmAsm
37 lines
1,012 B
ArmAsm
/* arch/arm/mach-zynq/include/mach/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) 2011 Xilinx
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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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#include <mach/zynq_soc.h>
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#include <mach/uart.h>
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.macro addruart, rp, rv
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ldr \rp, =LL_UART_PADDR @ physical
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ldr \rv, =LL_UART_VADDR @ virtual
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.endm
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.macro senduart,rd,rx
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str \rd, [\rx, #UART_FIFO_OFFSET] @ 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, #UART_SR_OFFSET] @ get status register
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tst \rd, #UART_SR_TXFULL @
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bne 1002b @ wait if FIFO is full
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.endm
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