29 lines
738 B
C
29 lines
738 B
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Atheros AR71XX/AR724X/AR913X specific kernel entry setup
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*
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* Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
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*/
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#ifndef __ASM_MACH_ATH79_KERNEL_ENTRY_H
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#define __ASM_MACH_ATH79_KERNEL_ENTRY_H
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/*
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* Some bootloaders set the 'Kseg0 coherency algorithm' to
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* 'Cacheable, noncoherent, write-through, no write allocate'
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* and this cause performance issues. Let's go and change it to
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* 'Cacheable, noncoherent, write-back, write allocate'
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*/
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.macro kernel_entry_setup
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mfc0 t0, CP0_CONFIG
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li t1, ~CONF_CM_CMASK
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and t0, t1
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ori t0, CONF_CM_CACHABLE_NONCOHERENT
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mtc0 t0, CP0_CONFIG
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nop
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.endm
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.macro smp_slave_setup
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.endm
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#endif /* __ASM_MACH_ATH79_KERNEL_ENTRY_H */
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