Unlike the i.MX8MM and i.MX8MN SoCs added earlier, the early setup code and device tree for the i.MX8MP configures some clocks at frequencies that are only validated for overdrive mode, i.e. when VDD_SOC is 950 mV. Boards may want to run their SoC at the lower voltage of 850 mV though to reduce heat generation and power usage. For this to work, clock rates need to adhere to the limits of the nominal drive mode. This needs to be done across both barebox and Linux. This series handles the barebox side and a separate series will follow for the kernel. Ahmad Fatoum (5): ARM: i.MX8M: pass cpu_type parameter to __imx8m_early_clock_init ARM: i.MX8MP: configure PLL3 as 600MHz ARM: i.MX8MP: configure PLL3 as noc_io parent ARM: i.MX8MP: don't reparent GIC from BootROM default ARM: dts: i.MX8MP: Add optional nominal drive mode DTSI arch/arm/dts/imx8mp-nominal.dtsi | 49 +++++++++++++++++++++++++++++++ arch/arm/mach-imx/imx8m.c | 43 ++++++++++++++++++++------- include/mach/imx/imx8m-ccm-regs.h | 1 + 3 files changed, 83 insertions(+), 10 deletions(-) create mode 100644 arch/arm/dts/imx8mp-nominal.dtsi -- 2.39.2
