Thread (28 messages) 28 messages, 4 authors, 2021-06-09

RE: [PATCH v2 11/12] arm64: dts: renesas: Add initial DTSI for RZ/G2{L,LC} SoC's

From: Biju Das <biju.das.jz@bp.renesas.com>
Date: 2021-06-09 07:08:36
Also in: linux-clk, linux-devicetree, linux-renesas-soc, linux-serial, lkml

Hi Geert,

Thanks for the feedback.
Subject: Re: [PATCH v2 11/12] arm64: dts: renesas: Add initial DTSI for
RZ/G2{L,LC} SoC's

Hi Biju,

On Fri, Jun 4, 2021 at 3:55 PM Biju Das [off-list ref]
wrote:
quoted
quoted
Subject: [PATCH v2 11/12] arm64: dts: renesas: Add initial DTSI for
RZ/G2{L,LC} SoC's

Add initial DTSI for RZ/G2{L,LC} SoC's.

File structure:
r9a07g044.dtsi  => RZ/G2L family SoC common parts r9a07g044l1.dtsi
=> Specific to RZ/G2L (R9A07G044L single cortex A55) SoC

Signed-off-by: Lad Prabhakar
[off-list ref]
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
quoted
quoted
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r9a07g044.dtsi
quoted
quoted
+             cpg: clock-controller@11010000 {
+                     compatible = "renesas,r9a07g044-cpg";
+                     reg = <0 0x11010000 0 0x10000>;
What about WDTOVF_RST(0xB10) and WDTRST_SEL(0xB14) registers, this
registers to be handled by WDT driver.
quoted
Unfortunately it is in CPG block.

So do we need to map the entire CPG registers or up to 0xB00?

Geert, Prabhakar: Any thoughts?
As the registers are part of the CPG block, I think they should be covered
by the CPG node.  You can handle them in the CPG driver, through functions
called from the WDT driver (cfr. rcar_rst_read_mode_pins()).
Got it. Similar case for WDTCTRL register to stop watchdog. This register is in SYSC block. So
we need to handle this register in SYSC driver.

Cheers,
Biju

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-
m68k.org

In personal conversations with technical people, I call myself a hacker.
But when I'm talking to journalists I just say "programmer" or something
like that.
                                -- Linus Torvalds
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help