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authorShaveta Leekha <shaveta@freescale.com>2014-05-28 14:18:55 +0530
committerYork Sun <yorksun@freescale.com>2014-06-05 13:45:07 -0700
commitb6808cd82d616bec2c357fb1b95116efe5b6f98c (patch)
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parent9855b3beca648dabe4d86b06d36bf219ebd0732d (diff)
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powerpc/serdes: Add the workaround for erratum A-007186
SerDes PLL is calibrated at reset. When the junction temperature delta from the time the PLL is calibrated exceeds +56C/-66C, jitter may increase and can cause PLL to unlock. This workaround overwrite the SerDes registers with new values, to calibrate SerDes registers. These values are known to work fine for all temperature ranges. This workaround is valid for B4, T4 and T2 platforms, so added in their config. Signed-off-by: Shaveta Leekha <shaveta@freescale.com> Signed-off-by: Poonam Aggrwal <Poonam.Aggrwal@freescale.com> [York Sun: replaced typedef ccsr_sfp_regs_t with struct ccsr_sfp_regs] Reviewed-by: York Sun <yorksun@freescale.com>
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