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(parent: 0351ef9) | patch
pci: mx6: fix occasional link failures
authorTim Harvey <tharvey@gateworks.com>
Fri, 8 Aug 2014 05:57:29 +0000 (22:57 -0700)
committerStefano Babic <sbabic@denx.de>
Wed, 20 Aug 2014 10:37:15 +0000 (12:37 +0200)
commit5a82e1a21d1229e7e3d1c64187735794019e9a1b
tree375fe3d824eb4c617917df43ec035ba93b4d3d8dtree | snapshot
parent0351ef97d7f8aef0ae03f80c43f2d6d7b97174e7commit | diff
pci: mx6: fix occasional link failures

According to the IMX6 reference manuals, REF_SSP_EN (Reference clock enable
for SS function) must remain deasserted until the reference clock is running
at the appropriate frequency.

Without this patch we find a high link failure rate (>5%) on certain
IMX6 boards at various temperatures.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Acked-by: Marek Vasut <marex@denx.de>
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
drivers/pci/pcie_imx.c diff | blob | history
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