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https://github.com/edk2-porting/linux-next.git
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c35b518f9b
Turns out latest upstream U-Boot does not configure/enable pll_u which
leaves it at some default rate of 500 kHz:
root@apalis-t30:~# cat /sys/kernel/debug/clk/clk_summary | grep pll_u
pll_u 3 3 0 500000 0
Of course this won't quite work leading to the following messages:
[ 6.559593] usb 2-1: new full-speed USB device number 2 using tegra-
ehci
[ 11.759173] usb 2-1: device descriptor read/64, error -110
[ 27.119453] usb 2-1: device descriptor read/64, error -110
[ 27.389217] usb 2-1: new full-speed USB device number 3 using tegra-
ehci
[ 32.559454] usb 2-1: device descriptor read/64, error -110
[ 47.929777] usb 2-1: device descriptor read/64, error -110
[ 48.049658] usb usb2-port1: attempt power cycle
[ 48.759475] usb 2-1: new full-speed USB device number 4 using tegra-
ehci
[ 59.349457] usb 2-1: device not accepting address 4, error -110
[ 59.509449] usb 2-1: new full-speed USB device number 5 using tegra-
ehci
[ 70.069457] usb 2-1: device not accepting address 5, error -110
[ 70.079721] usb usb2-port1: unable to enumerate USB device
Fix this by actually allowing the rate also being set from within
the Linux kernel.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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|---|---|---|
| .. | ||
| clk-audio-sync.c | ||
| clk-bpmp.c | ||
| clk-dfll.c | ||
| clk-dfll.h | ||
| clk-divider.c | ||
| clk-emc.c | ||
| clk-id.h | ||
| clk-periph-fixed.c | ||
| clk-periph-gate.c | ||
| clk-periph.c | ||
| clk-pll-out.c | ||
| clk-pll.c | ||
| clk-super.c | ||
| clk-tegra20.c | ||
| clk-tegra30.c | ||
| clk-tegra114.c | ||
| clk-tegra124-dfll-fcpu.c | ||
| clk-tegra124.c | ||
| clk-tegra210.c | ||
| clk-tegra-audio.c | ||
| clk-tegra-fixed.c | ||
| clk-tegra-periph.c | ||
| clk-tegra-pmc.c | ||
| clk-tegra-super-gen4.c | ||
| clk.c | ||
| clk.h | ||
| cvb.c | ||
| cvb.h | ||
| Kconfig | ||
| Makefile | ||