• devi priya's avatar
    clk: qcom: ipq9574: Update the alpha PLL type for GPLLs · 6357efe3
    devi priya authored
    Update PLL offsets to DEFAULT_EVO to configure MDIO to 800MHz.
    
    The incorrect clock frequency leads to an incorrect MDIO clock. This,
    in turn, affects the MDIO hardware configurations as the divider is
    calculated from the MDIO clock frequency. If the clock frequency is
    not as expected, the MDIO register fails due to the generation of an
    incorrect MDIO frequency.
    
    This issue is critical as it results in incorrect MDIO configurations
    and ultimately leads to the MDIO function not working. This results in
    a complete feature failure affecting all Ethernet PHYs. Specifically,
    Ethernet will not work on IPQ9574 due to this issue.
    
    Currently, the clock frequency is set to CLK_ALPHA_PLL_TYPE_DEFAULT.
    However, this setting does not yield the expected clock frequency.
    To rectify this, we need to change this to CLK_ALPHA_PLL_TYPE_DEFAULT_EVO.
    
    This modification ensures that the clock frequency aligns with our
    expectations, thereby resolving the MDIO register failure and ensuring
    the proper functioning of the Ethernet on IPQ9574.
    
    Fixes: d75b82cf ("clk: qcom: Add Global Clock Controller driver for IPQ9574")
    Signed-off-by: default avatardevi priya <quic_devipriy@quicinc.com>
    Signed-off-by: default avatarAmandeep Singh <quic_amansing@quicinc.com>
    Link: https://lore.kernel.org/r/20240806061105.2849944-1-quic_amansing@quicinc.comSigned-off-by: default avatarBjorn Andersson <andersson@kernel.org>
    6357efe3
gcc-ipq9574.c 117 KB