From mboxrd@z Thu Jan 1 00:00:00 1970 From: zhangqing@rock-chips.com (Elaine Zhang) Date: Wed, 05 Apr 2017 10:07:41 +0800 Subject: [PATCH v4 4/6] arm64: dts: rockchip: add core dtsi file for RK3328 SoCs In-Reply-To: <6636047.jL6XHNkknt@phil> References: <1490607650-18650-1-git-send-email-cl@rock-chips.com> <1490607650-18650-4-git-send-email-cl@rock-chips.com> <6636047.jL6XHNkknt@phil> Message-ID: <58E4516D.4000805@rock-chips.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 04/05/2017 12:04 AM, Heiko Stuebner wrote: > Am Montag, 27. M?rz 2017, 17:40:48 CEST schrieb cl at rock-chips.com: >> From: Liang Chen >> >> This patch adds core dtsi file for Rockchip RK3328 SoCs. >> >> Signed-off-by: Liang Chen > > applied for 4.12, with the following list of changes: > > - reorder some properties to bring them in alphabetical order > - dropped the status-disabled from the power-controller > power-domain control is a quite essential part of the system, so if > boards really want to disable them, they should do it in their board file > Having power-domains on all the time, is also our default in all other > devicetrees. > - removed #dma-cells from spi0 -> this is not a dma controller > - reword the cru assigned-clocks comment a bit > - fixed sdmmc1_bus4 pins, as indicated by Shawn and after looking up the > correct pins in the manual > > > And a final question, are you sure about SCLK_PDM becoming a child of the > APLL in your cru assigned-clocks, as the APLL will vary later on with cpufreq > active? > the NPLL will vary later on with cpufreq active. The NPLL is better than APLL, so NPLL is for clk_core,and apll is for pdm. please see the TRM in CRU: 1.4 Function Description /........./ To maximize the flexibility, some of clocks can select divider source from 5 PLLs. (Note: It?s recommended to use NEW PLL instead of ARM PLL as arm clock source, because NEW PLL is near to ARM. And it?s jitter is better than ARM PLL). > > Heiko > > >