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ARM: tegra: align carveout size

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Align the size of the carveout region to 2M. This ensures that the size
can be accurately represented by an LPAE page table that uses sections.

This solves a bug (hang at boot time soon after printing the DRAM size)
that only shows up when the following two commits are merged together:
d32e86bde8 ARM: HYP/non-sec: enable ARMV7_LPAE if HYP mode is supported
6e584e633d ARM: tegra: avoid using secure carveout RAM

Cc: Mark Kettenis <kettenis@openbsd.org>
Cc: Alexander Graf <agraf@suse.de>
Acked-by: Tom Warren <twarren@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This commit is contained in:
Stephen Warren 2018-07-31 12:38:27 -06:00 committed by Tom Rini
parent 61523dde17
commit a839c3641e
1 changed files with 1 additions and 1 deletions
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2
arch/arm/mach-tegra/board2.c
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@ -252,7 +252,7 @@ static ulong carveout_size(void)
#elif defined(CONFIG_ARMV7_SECURE_RESERVE_SIZE)
// BASE+SIZE might not == 4GB. If so, we want the carveout to cover
// from BASE to 4GB, not BASE to BASE+SIZE.
return (0 - CONFIG_ARMV7_SECURE_BASE);
return (0 - CONFIG_ARMV7_SECURE_BASE) & ~(SZ_2M - 1);
#else
return 0;
#endif