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ARC: Cache: Refactor arc_ioc_setup()
Move all checks before cache flush and IOC setup. Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
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@ -386,11 +386,15 @@ static void arc_ioc_setup(void)
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if (!dcache_enabled())
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panic("Try to enable IOC but L1 D$ is disabled");
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flush_n_invalidate_dcache_all();
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if (!is_power_of_2(ap_size) || ap_size < 4096)
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panic("IOC Aperture size must be power of 2 and bigger 4Kib");
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/* IOC Aperture start must be aligned to the size of the aperture */
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if (ap_base % ap_size != 0)
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panic("IOC Aperture start must be aligned to the size of the aperture");
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flush_n_invalidate_dcache_all();
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/*
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* IOC Aperture size decoded as 2 ^ (SIZE + 2) KB,
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* so setting 0x11 implies 512M, 0x12 implies 1G...
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@ -398,10 +402,6 @@ static void arc_ioc_setup(void)
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write_aux_reg(ARC_AUX_IO_COH_AP0_SIZE,
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order_base_2(ap_size / 1024) - 2);
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/* IOC Aperture start must be aligned to the size of the aperture */
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if (ap_base % ap_size != 0)
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panic("IOC Aperture start must be aligned to the size of the aperture");
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write_aux_reg(ARC_AUX_IO_COH_AP0_BASE, ap_base >> 12);
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write_aux_reg(ARC_AUX_IO_COH_PARTIAL, 1);
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write_aux_reg(ARC_AUX_IO_COH_ENABLE, 1);
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