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ARC: Cache: Refactor arc_ioc_setup()

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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>
This commit is contained in:
Eugeniy Paltsev 2018-03-21 15:59:05 +03:00 • committed by Alexey Brodkin
parent 9f0253c61a
commit 6b85b26e4b
1 changed files with 6 additions and 6 deletions
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12
arch/arc/lib/cache.c
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@ -386,11 +386,15 @@ static void arc_ioc_setup(void)
if (!dcache_enabled()) if (!dcache_enabled())
panic("Try to enable IOC but L1 D$ is disabled"); panic("Try to enable IOC but L1 D$ is disabled");
flush_n_invalidate_dcache_all();
if (!is_power_of_2(ap_size) || ap_size < 4096) if (!is_power_of_2(ap_size) || ap_size < 4096)
panic("IOC Aperture size must be power of 2 and bigger 4Kib"); panic("IOC Aperture size must be power of 2 and bigger 4Kib");
/* IOC Aperture start must be aligned to the size of the aperture */
if (ap_base % ap_size != 0)
panic("IOC Aperture start must be aligned to the size of the aperture");
flush_n_invalidate_dcache_all();
/* /*
* IOC Aperture size decoded as 2 ^ (SIZE + 2) KB, * IOC Aperture size decoded as 2 ^ (SIZE + 2) KB,
* so setting 0x11 implies 512M, 0x12 implies 1G... * so setting 0x11 implies 512M, 0x12 implies 1G...
@ -398,10 +402,6 @@ static void arc_ioc_setup(void)
write_aux_reg(ARC_AUX_IO_COH_AP0_SIZE, write_aux_reg(ARC_AUX_IO_COH_AP0_SIZE,
order_base_2(ap_size / 1024) - 2); order_base_2(ap_size / 1024) - 2);
/* IOC Aperture start must be aligned to the size of the aperture */
if (ap_base % ap_size != 0)
panic("IOC Aperture start must be aligned to the size of the aperture");
write_aux_reg(ARC_AUX_IO_COH_AP0_BASE, ap_base >> 12); write_aux_reg(ARC_AUX_IO_COH_AP0_BASE, ap_base >> 12);
write_aux_reg(ARC_AUX_IO_COH_PARTIAL, 1); write_aux_reg(ARC_AUX_IO_COH_PARTIAL, 1);
write_aux_reg(ARC_AUX_IO_COH_ENABLE, 1); write_aux_reg(ARC_AUX_IO_COH_ENABLE, 1);