Commits
Richard Zhu committed 45049dea430
MLK-13679-2 PCI: imx: workaround of ERR010728 for pcie on imx7d Description: Initial VCO oscillation may fail under corner conditions such as cold temperature. It causes PCIe PLL fail to lock in initialization phase. Project Impact: iMX7 PCIe PLL fails to lock and iMX7D PCIe doesn't work. Workarounds: To toggle internal PLL_PD signal to make VCO oscillate after G_RST signal is de-asserted by following the sequences: - De-asserted G_RST signal - Toggle internal PLL_PD signal: - Write "0x04" to the address "0x306D_0054" - Write "0xA4" to the address "0x306D_0054" - Write "0x04" to the address "0x306D_0054" - De-asserted CMN_RST signal Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>