From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Eugeniu Rosca <erosca@de.adit-jv.com>
Cc: Linux-Renesas <linux-renesas-soc@vger.kernel.org>,
Magnus Damm <magnus.damm@gmail.com>,
Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>,
Eugeniu Rosca <roscaeugeniu@gmail.com>,
Marek Vasut <marek.vasut+renesas@gmail.com>
Subject: Re: [PATCH/RFC 17/19] arm64: dts: renesas: Add support for Salvator-XS with R-Car M3-W+
Date: Wed, 16 Oct 2019 10:54:12 +0200 [thread overview]
Message-ID: <CAMuHMdU2CbuaS6yd8BTmkSx4h_kGF-ca2BRwjUcOaaX8EN02fA@mail.gmail.com> (raw)
In-Reply-To: <20191014175742.GA10194@vmlxhi-102.adit-jv.com>
Hi Eugeniu,
On Mon, Oct 14, 2019 at 7:57 PM Eugeniu Rosca <erosca@de.adit-jv.com> wrote:
> On Mon, Oct 07, 2019 at 12:23:30PM +0200, Geert Uytterhoeven wrote:
> > Add initial support for the Renesas Salvator-X 2nd version development
> > board equipped with an R-Car M3-W+ SiP with 8 (2 x 4) GiB of RAM.
> >
> > The memory map is as follows:
> > - Bank0: 4GiB RAM : 0x000048000000 -> 0x000bfffffff
> > 0x000480000000 -> 0x004ffffffff
> > - Bank1: 4GiB RAM : 0x000600000000 -> 0x006ffffffff
> >
> > Based on a patch in the BSP by Takeshi Kihara
> > <takeshi.kihara.df@renesas.com>.
> >
> > Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> > ---
> > arch/arm64/boot/dts/renesas/Makefile | 1 +
> > .../boot/dts/renesas/r8a77961-salvator-xs.dts | 31 +++++++++++++++++++
> > 2 files changed, 32 insertions(+)
> > create mode 100644 arch/arm64/boot/dts/renesas/r8a77961-salvator-xs.dts
>
> It is common practice in Renesas BSP to specify the SiP memory
> split by suffixing the DTB names with '-{2,4}x{2,4}g' [1].
>
> Has this ever been discussed on ML?
>
> Here in particular, it would allow M3-W+ 2x4GiB Salvator-XS and
> M3-W+ 2x2GiB (or any other DRAM split flavor of) Salvator-XS to
> coexist in harmony, if the latter pops up at any point.
With mainline U-Boot, the memory configuration is passed from ATF
through U-Boot to Linux, see e.g. "ARM: renesas: Configure DRAM size
from ATF DT fragment" [1], so there's no longer a need to maintain
multiple DTS files.
[1] https://gitlab.denx.de/u-boot/u-boot/commit/175f5027345c7feaa41e8f4201778814bf72fe37
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
next prev parent reply other threads:[~2019-10-16 8:54 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-07 10:23 [PATCH/RFC 00/19] arm64: dts: renesas: Initial support for R-Car M3-W+ Geert Uytterhoeven
2019-10-07 10:23 ` [PATCH/RFC 01/19] dt-bindings: arm: renesas: Document R-Car M3-W+ SoC DT bindings Geert Uytterhoeven
2019-10-07 10:23 ` [PATCH/RFC 02/19] dt-bindings: arm: renesas: Add Salvator-XS board with R-Car M3-W+ Geert Uytterhoeven
2019-10-07 10:23 ` [PATCH/RFC 03/19] dt-bindings: clock: renesas: cpg-mssr: Document r8a77961 support Geert Uytterhoeven
2019-10-14 18:45 ` Eugeniu Rosca
2019-10-16 8:35 ` Geert Uytterhoeven
2019-10-07 10:23 ` [PATCH/RFC 04/19] dt-bindings: pinctrl: sh-pfc: " Geert Uytterhoeven
2019-10-07 10:23 ` [PATCH/RFC 05/19] dt-bindings: power: rcar-sysc: " Geert Uytterhoeven
2019-10-07 10:23 ` [PATCH/RFC 06/19] dt-bindings: reset: rcar-rst: " Geert Uytterhoeven
2019-10-07 10:23 ` [PATCH/RFC 07/19] dt-bindings: serial: sh-sci: Document r8a77961 bindings Geert Uytterhoeven
2019-10-07 10:23 ` [PATCH/RFC 08/19] dt-bindings: power: Add r8a77961 SYSC power domain definitions Geert Uytterhoeven
2019-10-07 10:23 ` [PATCH/RFC 09/19] dt-bindings: clock: Add r8a77961 CPG Core Clock Definitions Geert Uytterhoeven
2019-10-07 10:23 ` [PATCH/RFC 10/19] soc: renesas: Add R8A77961 config option Geert Uytterhoeven
2019-10-07 10:23 ` [PATCH/RFC 11/19] soc: renesas: Identify R-Car M3-W+ Geert Uytterhoeven
2019-10-07 10:23 ` [PATCH/RFC 12/19] soc: renesas: rcar-sysc: Add R8A77961 support Geert Uytterhoeven
2019-10-07 10:23 ` [PATCH/RFC 13/19] soc: renesas: rcar-rst: Add support for R-Car M3-W+ Geert Uytterhoeven
2019-10-07 10:23 ` [PATCH/RFC 14/19] clk: renesas: r8a7796: Add R8A77961 CPG/MSSR support Geert Uytterhoeven
2019-10-07 10:23 ` [PATCH/RFC 15/19] pinctrl: sh-pfc: r8a7796: Add R8A77961 PFC support Geert Uytterhoeven
2019-10-07 10:23 ` [PATCH/RFC 16/19] arm64: dts: renesas: Add Renesas R8A77961 SoC support Geert Uytterhoeven
2019-10-07 10:23 ` [PATCH/RFC 17/19] arm64: dts: renesas: Add support for Salvator-XS with R-Car M3-W+ Geert Uytterhoeven
2019-10-14 17:57 ` Eugeniu Rosca
2019-10-16 8:54 ` Geert Uytterhoeven [this message]
2019-10-16 11:23 ` Eugeniu Rosca
2019-10-07 10:23 ` [PATCH/RFC 18/19] arm64: defconfig: Enable R8A77961 SoC Geert Uytterhoeven
2019-10-07 10:23 ` [PATCH/RFC 19/19] [LOCAL] arm64: renesas_defconfig: " Geert Uytterhoeven
2019-10-11 8:31 ` [PATCH/RFC 00/19] arm64: dts: renesas: Initial support for R-Car M3-W+ Yoshihiro Shimoda
2019-10-14 19:58 ` Eugeniu Rosca
2019-10-16 8:46 ` Geert Uytterhoeven
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