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arm: zynq: Invalidate L1 in secondary boot

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During boot, Linux initiates a clean-invalidate operation only, resulting
in faulty data to be written to the memory system during resume.
Therefore invalidate the L1 in the secondary boot path to avoid these
issues.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Soren Brinkmann
2013-10-31 09:10:15 -07:00
committed by Michal Simek
parent 11e031308b
commit 6a37ff388a
3 changed files with 8 additions and 2 deletions
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6
arch/arm/mach-zynq/headsmp.S
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@@ -18,5 +18,9 @@ zynq_secondary_trampoline_jump:
.word /* cpu 1 */
.globl zynq_secondary_trampoline_end
zynq_secondary_trampoline_end:
ENDPROC(zynq_secondary_trampoline)
ENTRY(zynq_secondary_startup)
bl v7_invalidate_l1
b secondary_startup
ENDPROC(zynq_secondary_startup)