[PATCH v2 0/2] Add R8A7792 SDHI support

[PATCH v2 0/2] Add R8A7792 SDHI support

[Sergei Shtylyov]

Hello.

   Here's the set of 2 patches against Simon Horman's 'renesas.git' repo,
'renesas-devel-20160722-v4.7-rc7' tag. We're adding the R8A7792 SDHI clocks and
device nodes. They have been tested on the Blanche board -- I'm not posting the
Blanche patch only because it has some strange interaction with the Ethernet
chip, so that NFS root wouldn't work anymore...

[1/2] ARM: dts: r8a7792: add SD clocks
[2/2] ARM: dts: r8a7792: add SDHI support

WBR, Sergei

[PATCH v2 1/2] ARM: dts: r8a7792: add SD clocks

[Sergei Shtylyov]

Describe the SDHI0 clock and its parent, SD clock in the R8A7792 device tree.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

---
Changes in version 2:
- refreshed the patch.

 arch/arm/boot/dts/r8a7792.dtsi |   16 ++++++++++++++++
 1 file changed, 16 insertions(+)

Index: renesas/arch/arm/boot/dts/r8a7792.dtsi
===================================================================
--- renesas.orig/arch/arm/boot/dts/r8a7792.dtsi
+++ renesas/arch/arm/boot/dts/r8a7792.dtsi
@@ -535,6 +535,13 @@
 			clock-div = <8>;
 			clock-mult = <1>;
 		};
+		sd_clk: sd {
+			compatible = "fixed-factor-clock";
+			clocks = <&pll1_div2_clk>;
+			#clock-cells = <0>;
+			clock-div = <8>;
+			clock-mult = <1>;
+		};
 		rcan_clk: rcan {
 			compatible = "fixed-factor-clock";
 			clocks = <&pll1_div2_clk>;
@@ -564,6 +571,15 @@
 			>;
 			clock-output-names = "sys-dmac1", "sys-dmac0";
 		};
+		mstp3_clks: mstp3_clks@e615013c {
+			compatible = "renesas,r8a7792-mstp-clocks",
+				     "renesas,cpg-mstp-clocks";
+			reg = <0 0xe615013c 0 4>, <0 0xe6150048 0 4>;
+			clocks = <&sd_clk>;
+			#clock-cells = <1>;
+			renesas,clock-indices = <R8A7792_CLK_SDHI0>;
+			clock-output-names = "sdhi0";
+		};
 		mstp4_clks: mstp4_clks@e6150140 {
 			compatible = "renesas,r8a7792-mstp-clocks",
 				     "renesas,cpg-mstp-clocks";

[PATCH v2 2/2] ARM: dts: r8a7792: add SDHI support

[Sergei Shtylyov]

Define the generic R8A7792 part of the SDHI0 device node.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

---
Changes in version 2:
- fixed up the size in the "reg" property.

 arch/arm/boot/dts/r8a7792.dtsi |   12 ++++++++++++
 1 file changed, 12 insertions(+)

Index: renesas/arch/arm/boot/dts/r8a7792.dtsi
===================================================================
--- renesas.orig/arch/arm/boot/dts/r8a7792.dtsi
+++ renesas/arch/arm/boot/dts/r8a7792.dtsi
@@ -435,6 +435,18 @@
 			status = "disabled";
 		};
 
+		sdhi0: sd@ee100000 {
+			compatible = "renesas,sdhi-r8a7792";
+			reg = <0 0xee100000 0 0x328>;
+			interrupts = <0 165 IRQ_TYPE_LEVEL_HIGH>;
+			dmas = <&dmac0 0xcd>, <&dmac0 0xce>,
+			       <&dmac1 0xcd>, <&dmac1 0xce>;
+			dma-names = "tx", "rx", "tx", "rx";
+			clocks = <&mstp3_clks R8A7792_CLK_SDHI0>;
+			power-domains = <&sysc R8A7792_PD_ALWAYS_ON>;
+			status = "disabled";
+		};
+
 		jpu: jpeg-codec@fe980000 {
 			compatible = "renesas,jpu-r8a7792",
 				     "renesas,rcar-gen2-jpu";

Re: [PATCH v2 0/2] Add R8A7792 SDHI support

[Simon Horman]

On Sat, Jul 23, 2016 at 09:09:24PM +0300, Sergei Shtylyov wrote:
> Hello.
> 
>    Here's the set of 2 patches against Simon Horman's 'renesas.git' repo,
> 'renesas-devel-20160722-v4.7-rc7' tag. We're adding the R8A7792 SDHI clocks and
> device nodes. They have been tested on the Blanche board -- I'm not posting the
> Blanche patch only because it has some strange interaction with the Ethernet
> chip, so that NFS root wouldn't work anymore...
> 
> [1/2] ARM: dts: r8a7792: add SD clocks
> [2/2] ARM: dts: r8a7792: add SDHI support

Thanks, I have queued this up for v4.9.

Re: [PATCH v2 1/2] ARM: dts: r8a7792: add SD clocks

[Geert Uytterhoeven]

On Sat, Jul 23, 2016 at 8:10 PM, Sergei Shtylyov
<sergei.shtylyov-M4DtvfQ/ZS1MRgGoP+s0PdBPR1lH4CV8@public.gmane.org> wrote:
> Describe the SDHI0 clock and its parent, SD clock in the R8A7792 device tree.
>
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov-M4DtvfQ/ZS1MRgGoP+s0PdBPR1lH4CV8@public.gmane.org>

Reviewed-by: Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.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
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