mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-10-05 02:50:44 +09:00
1b42ab3eda
This patch adds support to update the device-tree blob to adjust the
DSP and IVA DPLL clocks pertinent to the selected OPP choice, with
the default being OPP_NOM. The voltage settings are done in u-boot,
but the actual clock configuration itself is done in kernel because
of the following reasons:
1. SoC definition constraints us to NOT to do dynamic voltage
scaling ever after the initial avs0 setting in bootloader
- so the voltage must be set in bootloader.
2. The voltage level must be set even if the IP blocks like
GPU/DSP are unused.
3. The IVA, GPU and DSP DPLLs are not essential for u-boot functionality,
and similar DPLL clock configuration code has been cleaned up in
v2014.10 u-boot release. See commit,
|
||
---|---|---|
.. | ||
cpu | ||
dts | ||
imx-common | ||
include | ||
lib | ||
mach-at91 | ||
mach-bcm283x | ||
mach-davinci | ||
mach-exynos | ||
mach-highbank | ||
mach-integrator | ||
mach-keystone | ||
mach-kirkwood | ||
mach-meson | ||
mach-mvebu | ||
mach-omap2 | ||
mach-orion5x | ||
mach-rmobile | ||
mach-rockchip | ||
mach-s5pc1xx | ||
mach-snapdragon | ||
mach-socfpga | ||
mach-stm32 | ||
mach-sunxi | ||
mach-tegra | ||
mach-uniphier | ||
mach-versatile | ||
mach-zynq | ||
thumb1/include/asm/proc-armv | ||
config.mk | ||
Kconfig | ||
Kconfig.debug | ||
Makefile |