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author | Oded Gabbay <oded.gabbay@gmail.com> | 2016-12-28 13:38:35 +0200 |
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committer | Tom Rini <trini@konsulko.com> | 2017-01-14 16:47:10 -0500 |
commit | 8c36e99f211104fd7dcbf0669a35a47ce5e154f5 (patch) | |
tree | 51ed5633ec7e0efa7015dbd88358d919b3ae095b /Kconfig | |
parent | 6569c0d3252d482a01325f7b87b6ebe4e1ab07fd (diff) | |
download | u-boot-imx-8c36e99f211104fd7dcbf0669a35a47ce5e154f5.zip u-boot-imx-8c36e99f211104fd7dcbf0669a35a47ce5e154f5.tar.gz u-boot-imx-8c36e99f211104fd7dcbf0669a35a47ce5e154f5.tar.bz2 |
armv8: release slave cores from CPU_RELEASE_ADDR
When using ARMv8 with ARMV8_SPIN_TABLE=y, we want the slave cores to
wait on spin_table_cpu_release_addr, until the Linux kernel will "wake" them
by writing to that location. The address of spin_table_cpu_release_addr is
transferred to the kernel using the device tree that is updated by
spin_table_update_dt().
However, if we also use SPL, then the slave cores are stuck at
CPU_RELEASE_ADDR instead and as a result, never wake up.
This patch releases the slave cores by writing spl_image->entry_point to
CPU_RELEASE_ADDR location before the end of the SPL code
(at jump_to_image_no_args()).
That way, the slave cores will start to execute the u-boot and will get to
the spin-table code and wait on the correct address
(spin_table_cpu_release_addr).
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'Kconfig')
0 files changed, 0 insertions, 0 deletions