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828989ad87
Texas Instruments Keystone family of multi-core devices are based on ARM Cortex A15. Patch adds basic definitions for a new Keystone sub-architecture in ARM. The TCI66xxK2H Communications Infrastructure Keystone SoCs are member of the C66x family based on TI's new KeyStone 2 multi-core SoC Architecture designed specifically for high performance wireless and networking infrastructure applications. The SOCs contains many subsystems like Cortex A15 ARM CorePacs, C66XX DSP CorePacs, MSMC memory controller, Tera Net bus, IP Network, Navigator, Hyperlink, 1G/10G Ethernet, Radio layers and queue based communication systems. Cc: Arnd Bergmann <arnd@arndb.de> Cc: arm@kernel.org Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
44 lines
1.1 KiB
ArmAsm
44 lines
1.1 KiB
ArmAsm
/*
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* Early serial debug output macro for Keystone SOCs
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*
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* Copyright 2013 Texas Instruments, Inc.
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* Santosh Shilimkar <santosh.shilimkar@ti.com>
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*
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* Based on RMKs low level debug code.
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* Copyright (C) 1994-1999 Russell King
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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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#include <linux/serial_reg.h>
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#define UART_SHIFT 2
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#if defined(CONFIG_DEBUG_KEYSTONE_UART0)
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#define UART_PHYS 0x02530c00
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#define UART_VIRT 0xfeb30c00
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#elif defined(CONFIG_DEBUG_KEYSTONE_UART1)
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#define UART_PHYS 0x02531000
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#define UART_VIRT 0xfeb31000
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#endif
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.macro addruart, rp, rv, tmp
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ldr \rv, =UART_VIRT @ physical base address
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ldr \rp, =UART_PHYS @ virtual base address
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.endm
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.macro senduart,rd,rx
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str \rd, [\rx, #UART_TX << UART_SHIFT]
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.endm
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.macro busyuart,rd,rx
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1002: ldr \rd, [\rx, #UART_LSR << UART_SHIFT]
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and \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE
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teq \rd, #UART_LSR_TEMT | UART_LSR_THRE
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bne 1002b
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.endm
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.macro waituart,rd,rx
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.endm
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