Hi,
this is a basic clock driver for u-boot that supports enabling/disabling clock gates and getting their frequency. With this, some hardcoded initializations can be removed from the board code, and drivers can use the information from device tree to initialize clocks.
Beniamino Galvani (4): ARM: dts: update gxbb-clkc.h from Linux 4.14 ARM: meson: add clock measurement function clk: add Amlogic meson clock driver meson: use the clock driver
arch/arm/include/asm/arch-meson/clock.h | 34 ++++++ arch/arm/include/asm/arch-meson/gxbb.h | 10 -- arch/arm/include/asm/arch-meson/i2c.h | 11 -- arch/arm/mach-meson/Kconfig | 2 + arch/arm/mach-meson/Makefile | 2 +- arch/arm/mach-meson/clock.c | 45 ++++++++ board/amlogic/odroid-c2/odroid-c2.c | 4 +- board/amlogic/p212/p212.c | 3 +- drivers/clk/Makefile | 1 + drivers/clk/clk_meson.c | 196 ++++++++++++++++++++++++++++++++ drivers/i2c/meson_i2c.c | 20 +++- include/dt-bindings/clock/gxbb-clkc.h | 75 ++++++++++++ 12 files changed, 373 insertions(+), 30 deletions(-) create mode 100644 arch/arm/include/asm/arch-meson/clock.h delete mode 100644 arch/arm/include/asm/arch-meson/i2c.h create mode 100644 arch/arm/mach-meson/clock.c create mode 100644 drivers/clk/clk_meson.c