[PATCH v2 0/2] Add R8A7794/SILK QSPI DT support

[PATCH v2 0/2] Add R8A7794/SILK QSPI DT support

[Sergei Shtylyov]

Hello.

   Here's the set of 2 patches against Simon Horman's 'renesas.git' repo,
'renesas-devel-20150810-v4.2-rc6' tag plus the R8A7794 GPIO patches I've posted
last week. Here we add the QSPI device tree support for the R8A7794/SILK board.

[1/2] ARM: shmobile: r8a7794: add QSPI DT support
[2/2] ARM: shmobile: silk: add QSPI DT support

WBR, Sergei

[PATCH v2 1/2] ARM: shmobile: r8a7794: add QSPI DT support

[Sergei Shtylyov]

Define the generic R8A7794 part of the QSPI device node.

Based on original patch by Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>.

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

---
Changes in version 2:
- moved the "power-domains" property after the DMA properties.

 arch/arm/boot/dts/r8a7794.dtsi |   18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

Index: renesas/arch/arm/boot/dts/r8a7794.dtsi
===================================================================
--- renesas.orig/arch/arm/boot/dts/r8a7794.dtsi
+++ renesas/arch/arm/boot/dts/r8a7794.dtsi
@@ -19,6 +19,10 @@
 	#address-cells = <2>;
 	#size-cells = <2>;
 
+	aliases {
+		spi0 = &qspi;
+	};
+
 	cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
@@ -537,6 +541,20 @@
 		status = "disabled";
 	};
 
+	qspi: spi@e6b10000 {
+		compatible = "renesas,qspi-r8a7794", "renesas,qspi";
+		reg = <0 0xe6b10000 0 0x2c>;
+		interrupts = <0 184 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&mstp9_clks R8A7794_CLK_QSPI_MOD>;
+		dmas = <&dmac0 0x17>, <&dmac0 0x18>;
+		dma-names = "tx", "rx";
+		power-domains = <&cpg_clocks>;
+		num-cs = <1>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "disabled";
+	};
+
 	clocks {
 		#address-cells = <2>;
 		#size-cells = <2>;

Re: [PATCH v2 1/2] ARM: shmobile: r8a7794: add QSPI DT support

[Geert Uytterhoeven]

On Mon, Aug 10, 2015 at 11:59 PM, Sergei Shtylyov
<sergei.shtylyov@cogentembedded.com> wrote:
> Define the generic R8A7794 part of the QSPI device node.
>
> Based on original patch by Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>.
>
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>

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

Re: [PATCH v2 1/2] ARM: shmobile: r8a7794: add QSPI DT support

[Sergei Shtylyov]

Hello.

On 08/11/2015 09:58 AM, Geert Uytterhoeven wrote:

>> Define the generic R8A7794 part of the QSPI device node.
>>
>> Based on original patch by Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>.
>>
>> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
>
> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>

    Sorry, forgot to add your ACK when re-posting. Thank you!

> Gr{oetje,eeting}s,
>
>                          Geert

MBR, Sergei

[PATCH v2 2/2] ARM: shmobile: silk: add QSPI DT support

[Sergei Shtylyov]

Define the SILK board dependent part of the QSPI device node.
Add device nodes  for Spansion  S25FL512S SPI flash and MTD partitions on it.

Based on the original patch by Vladimir Barinov
<vladimir.barinov@cogentembedded.com>.

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

---
Changes in version 2:
- added fallback value to the SPI flash's "compatible" property;
- grouped all SPI-related properties together in the SPI flash node.

 arch/arm/boot/dts/r8a7794-silk.dts |   40 +++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

Index: renesas/arch/arm/boot/dts/r8a7794-silk.dts
===================================================================
--- renesas.orig/arch/arm/boot/dts/r8a7794-silk.dts
+++ renesas/arch/arm/boot/dts/r8a7794-silk.dts
@@ -65,6 +65,11 @@
 		renesas,groups = "mmc_data8", "mmc_ctrl";
 		renesas,function = "mmc";
 	};
+
+	qspi_pins: spi0 {
+		renesas,groups = "qspi_ctrl", "qspi_data4";
+		renesas,function = "qspi";
+	};
 };
 
 &scif2 {
@@ -100,3 +105,38 @@
 	non-removable;
 	status = "okay";
 };
+
+&qspi {
+	pinctrl-0 = <&qspi_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+
+	flash@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "spansion,s25fl512s", "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <30000000>;
+		spi-tx-bus-width = <4>;
+		spi-rx-bus-width = <4>;
+		spi-cpol;
+		spi-cpha;
+		m25p,fast-read;
+
+		partition@0 {
+			label = "loader";
+			reg = <0x00000000 0x00040000>;
+			read-only;
+		};
+		partition@40000 {
+			label = "user";
+			reg = <0x00040000 0x00400000>;
+			read-only;
+		};
+		partition@440000 {
+			label = "flash";
+			reg = <0x00440000 0x03bc0000>;
+		};
+	};
+};

Re: [PATCH v2 2/2] ARM: shmobile: silk: add QSPI DT support

[Geert Uytterhoeven]

On Tue, Aug 11, 2015 at 12:00 AM, Sergei Shtylyov
<sergei.shtylyov@cogentembedded.com> wrote:
> Define the SILK board dependent part of the QSPI device node.
> Add device nodes  for Spansion  S25FL512S SPI flash and MTD partitions on it.
>
> Based on the original patch by Vladimir Barinov
> <vladimir.barinov@cogentembedded.com>.
>
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>

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

Re: [PATCH v2 0/2] Add R8A7794/SILK QSPI DT support

[Simon Horman]

On Tue, Aug 11, 2015 at 12:57:57AM +0300, Sergei Shtylyov wrote:
> Hello.
> 
>    Here's the set of 2 patches against Simon Horman's 'renesas.git' repo,
> 'renesas-devel-20150810-v4.2-rc6' tag plus the R8A7794 GPIO patches I've posted
> last week. Here we add the QSPI device tree support for the R8A7794/SILK board.
> 
> [1/2] ARM: shmobile: r8a7794: add QSPI DT support
> [2/2] ARM: shmobile: silk: add QSPI DT support

Thanks, both patches queued up for v4.4.