linux/drivers/clk/tegra
Marcel Ziswiler c35b518f9b clk: tegra: Fix pll_u rate configuration
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>
2018-03-12 13:59:06 +01:00
..
clk-audio-sync.c clk: tegra: Remove CLK_IS_ROOT 2016-03-02 17:47:19 -08:00
clk-bpmp.c clk: tegra: Check BPMP response return code 2017-10-19 16:38:40 +02:00
clk-dfll.c clk: tegra: dfll: Fix drvdata overwriting issue 2017-11-01 15:00:06 +01:00
clk-dfll.h clk: tegra: dfll: Fix drvdata overwriting issue 2017-11-01 15:00:06 +01:00
clk-divider.c tegra/clk-divider: fix wrong do_div() usage 2015-11-16 12:37:55 -05:00
clk-emc.c clk: tegra: Mark HCLK, SCLK and EMC as critical 2018-03-12 13:58:58 +01:00
clk-id.h We have two changes to the core framework this time around. The first being a 2017-11-17 20:04:24 -08:00
clk-periph-fixed.c clk: tegra: Add fixed factor peripheral clock type 2016-04-28 12:41:47 +02:00
clk-periph-gate.c clk: tegra: Fix disable unused for clocks sharing enable bit 2017-03-20 14:13:52 +01:00
clk-periph.c clk: tegra: Add peripheral clock registration helper 2017-10-19 16:38:40 +02:00
clk-pll-out.c clk: tegra: Properly include clk.h 2015-07-20 11:11:17 -07:00
clk-pll.c clk: tegra: Fix pll_u rate configuration 2018-03-12 13:59:06 +01:00
clk-super.c clk: tegra: Add super clock mux/divider 2017-03-20 14:07:33 +01:00
clk-tegra20.c clk: tegra: Specify VDE clock rate 2018-03-12 13:59:06 +01:00
clk-tegra30.c clk: tegra: Specify VDE clock rate 2018-03-12 13:59:06 +01:00
clk-tegra114.c clk: tegra: Specify VDE clock rate 2018-03-12 13:59:06 +01:00
clk-tegra124-dfll-fcpu.c clk: tegra: dfll: Fix drvdata overwriting issue 2017-11-01 15:00:06 +01:00
clk-tegra124.c clk: tegra: Specify VDE clock rate 2018-03-12 13:59:06 +01:00
clk-tegra210.c clk: tegra: Mark HCLK, SCLK and EMC as critical 2018-03-12 13:58:58 +01:00
clk-tegra-audio.c clk: tegra: Define Tegra210 DMIC sync clocks 2017-03-20 14:06:33 +01:00
clk-tegra-fixed.c clk: tegra: Remove trailing blank line 2016-04-28 12:41:45 +02:00
clk-tegra-periph.c clk: tegra: Mark HCLK, SCLK and EMC as critical 2018-03-12 13:58:58 +01:00
clk-tegra-pmc.c clk: tegra: Propagate clk_out_x rate to parent 2017-04-04 16:00:28 +02:00
clk-tegra-super-gen4.c clk: tegra: Mark HCLK, SCLK and EMC as critical 2018-03-12 13:58:58 +01:00
clk.c clk: tegra: Implement reset control reset 2017-03-20 14:15:31 +01:00
clk.h clk: tegra: add fence_delay for clock registers 2018-03-08 15:26:54 +01:00
cvb.c clk: tegra: dfll: improve function-level documentation 2016-11-01 17:38:50 -07:00
cvb.h clk: tegra: dfll: Properly clean up on failure and removal 2016-04-28 12:41:54 +02:00
Kconfig clk: tegra: Add BPMP clock driver 2017-02-03 12:36:36 -08:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00