Re: [PATCH] arm: kirkwood: 88f6281: Detect CONFIG_SYS_TCLK from SAR register

2022-08-17 Thread Pali Rohár
On Wednesday 17 August 2022 12:42:57 Stefan Roese wrote: > Hi Pali, > > On 17.08.22 10:36, Pali Rohár wrote: > > On Wednesday 17 August 2022 01:23:34 Michael Walle wrote: > > > Am 2022-08-17 00:39, schrieb Pali Rohár: > > > > On Wednesday 17 August 2022 00:14:20 Pali Rohár wrote: > > > > > On

Re: [PATCH] arm: kirkwood: 88f6281: Detect CONFIG_SYS_TCLK from SAR register

2022-08-17 Thread Stefan Roese
Hi Pali, On 17.08.22 10:36, Pali Rohár wrote: On Wednesday 17 August 2022 01:23:34 Michael Walle wrote: Am 2022-08-17 00:39, schrieb Pali Rohár: On Wednesday 17 August 2022 00:14:20 Pali Rohár wrote: On Tuesday 16 August 2022 23:34:13 Michael Walle wrote: Am 2022-08-16 22:00, schrieb Pali

Re: [PATCH] arm: kirkwood: 88f6281: Detect CONFIG_SYS_TCLK from SAR register

2022-08-17 Thread Michael Walle
Am 2022-08-17 10:43, schrieb Michael Walle: 3) There is a chance that the timer code is actually pretty straight-forward and we don't need DM_CLK. FWIW I'm working on 3) at the moment. So if that works out, we can use CONFIG_TIMER on kirkwood and then apply your initial patch. As there are

Re: [PATCH] arm: kirkwood: 88f6281: Detect CONFIG_SYS_TCLK from SAR register

2022-08-17 Thread Michael Walle
Am 2022-08-17 10:36, schrieb Pali Rohár: On Wednesday 17 August 2022 01:23:34 Michael Walle wrote: Am 2022-08-17 00:39, schrieb Pali Rohár: > On Wednesday 17 August 2022 00:14:20 Pali Rohár wrote: > > On Tuesday 16 August 2022 23:34:13 Michael Walle wrote: > > > Am 2022-08-16 22:00, schrieb

Re: [PATCH] arm: kirkwood: 88f6281: Detect CONFIG_SYS_TCLK from SAR register

2022-08-17 Thread Pali Rohár
On Wednesday 17 August 2022 01:23:34 Michael Walle wrote: > Am 2022-08-17 00:39, schrieb Pali Rohár: > > On Wednesday 17 August 2022 00:14:20 Pali Rohár wrote: > > > On Tuesday 16 August 2022 23:34:13 Michael Walle wrote: > > > > Am 2022-08-16 22:00, schrieb Pali Rohár: > > > > > Bit 21 in SAR

Re: [PATCH] arm: kirkwood: 88f6281: Detect CONFIG_SYS_TCLK from SAR register

2022-08-16 Thread Michael Walle
Am 2022-08-17 00:39, schrieb Pali Rohár: On Wednesday 17 August 2022 00:14:20 Pali Rohár wrote: On Tuesday 16 August 2022 23:34:13 Michael Walle wrote: > Am 2022-08-16 22:00, schrieb Pali Rohár: > > Bit 21 in SAR register specifies if TCLK is running at 166 MHz or 200 > > MHz. > > This

Re: [PATCH] arm: kirkwood: 88f6281: Detect CONFIG_SYS_TCLK from SAR register

2022-08-16 Thread Pali Rohár
On Wednesday 17 August 2022 00:14:20 Pali Rohár wrote: > On Tuesday 16 August 2022 23:34:13 Michael Walle wrote: > > Am 2022-08-16 22:00, schrieb Pali Rohár: > > > Bit 21 in SAR register specifies if TCLK is running at 166 MHz or 200 > > > MHz. > > > This information is undocumented in public

Re: [PATCH] arm: kirkwood: 88f6281: Detect CONFIG_SYS_TCLK from SAR register

2022-08-16 Thread Pali Rohár
On Tuesday 16 August 2022 23:34:13 Michael Walle wrote: > Am 2022-08-16 22:00, schrieb Pali Rohár: > > Bit 21 in SAR register specifies if TCLK is running at 166 MHz or 200 > > MHz. > > This information is undocumented in public Marvell Kirkwood Functional > > Specifications [2], but is available

Re: [PATCH] arm: kirkwood: 88f6281: Detect CONFIG_SYS_TCLK from SAR register

2022-08-16 Thread Michael Walle
Am 2022-08-16 22:00, schrieb Pali Rohár: Bit 21 in SAR register specifies if TCLK is running at 166 MHz or 200 MHz. This information is undocumented in public Marvell Kirkwood Functional Specifications [2], but is available in Linux v3.15 kirkwood code [1]. Commit 8ac303d49f89 ("arm: kirkwood:

[PATCH] arm: kirkwood: 88f6281: Detect CONFIG_SYS_TCLK from SAR register

2022-08-16 Thread Pali Rohár
Bit 21 in SAR register specifies if TCLK is running at 166 MHz or 200 MHz. This information is undocumented in public Marvell Kirkwood Functional Specifications [2], but is available in Linux v3.15 kirkwood code [1]. Commit 8ac303d49f89 ("arm: kirkwood: Do not overwrite CONFIG_SYS_TCLK") broke