[PATCH RFC v2 12/12] ARM: dts: sk-rzg1m: add Ether support

[Sergei Shtylyov]

Define the SK-RZG1M board dependent part of the Ether device node.
Enable DHCP and NFS root  for the kernel booting.

Based on the original (and large) patch by Dmitry Shifrin
.

Signed-off-by: Sergei Shtylyov 

---
Changes in version 2:
- new patch.

 arch/arm/boot/dts/r8a7743-sk-rzg1m.dts |   15 ++-
 1 file changed, 14 insertions(+), 1 deletion(-)

Index: renesas/arch/arm/boot/dts/r8a7743-sk-rzg1m.dts
===
--- renesas.orig/arch/arm/boot/dts/r8a7743-sk-rzg1m.dts
+++ renesas/arch/arm/boot/dts/r8a7743-sk-rzg1m.dts
@@ -20,7 +20,7 @@
};
 
chosen {
-   bootargs = "ignore_loglevel";
+   bootargs = "ignore_loglevel rw root=/dev/nfs ip=dhcp";
stdout-path = "serial0:115200n8";
};
 
@@ -42,3 +42,16 @@
  {
status = "okay";
 };
+
+ {
+   phy-handle = <>;
+   renesas,ether-link-active-low;
+   status = "okay";
+
+   phy1: ethernet-phy@1 {
+   reg = <1>;
+   interrupt-parent = <>;
+   interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+   micrel,led-mode = <1>;
+   };
+};

[PATCH RFC v2 11/12] ARM: dts: sk-rzg1m: initial device tree

[Sergei Shtylyov]

Add the initial device  tree for the R8A7743 SoC based SK-RZG1M board.
The board has one debug serial port (SCIF0); include support for it, so
that  the serial  console  can work.

Based on the original (and large) patch by Dmitry Shifrin
.

Signed-off-by: Sergei Shtylyov 

---
 arch/arm/boot/dts/Makefile |1 
 arch/arm/boot/dts/r8a7743-sk-rzg1m.dts |   44 +
 2 files changed, 45 insertions(+)

Index: renesas/arch/arm/boot/dts/Makefile
===
--- renesas.orig/arch/arm/boot/dts/Makefile
+++ renesas/arch/arm/boot/dts/Makefile
@@ -654,6 +654,7 @@ dtb-$(CONFIG_ARCH_SHMOBILE_MULTI) += \
r7s72100-rskrza1.dtb \
r8a73a4-ape6evm.dtb \
r8a7740-armadillo800eva.dtb \
+   r8a7743-sk-rzg1m.dtb \
r8a7778-bockw.dtb \
r8a7779-marzen.dtb \
r8a7790-lager.dtb \
Index: renesas/arch/arm/boot/dts/r8a7743-sk-rzg1m.dts
===
--- /dev/null
+++ renesas/arch/arm/boot/dts/r8a7743-sk-rzg1m.dts
@@ -0,0 +1,44 @@
+/*
+ * Device Tree Source for the SK-RZG1M board
+ *
+ * Copyright (C) 2016 Cogent Embedded, Inc.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/dts-v1/;
+#include "r8a7743.dtsi"
+
+/ {
+   model = "SK-RZG1M";
+   compatible = "renesas,sk-rzg1m", "renesas,r8a7743";
+
+   aliases {
+   serial0 = 
+   };
+
+   chosen {
+   bootargs = "ignore_loglevel";
+   stdout-path = "serial0:115200n8";
+   };
+
+   memory@4000 {
+   device_type = "memory";
+   reg = <0 0x4000 0 0x4000>;
+   };
+
+   memory@2 {
+   device_type = "memory";
+   reg = <2 0x 0 0x4000>;
+   };
+};
+
+_clk {
+   clock-frequency = <2000>;
+};
+
+ {
+   status = "okay";
+};

[PATCH RFC v2 10/12] DT: arm: shmobile: document SK-RZG1M board

[Sergei Shtylyov]

Document the SK-RZG1M device tree bindings, listing it as a supported board.

This allows to use checkpatch.pl to validate .dts files referring to the
SK-RZG1M board.

Signed-off-by: Sergei Shtylyov 

---
Changes in version 2:
- new patch.

 Documentation/devicetree/bindings/arm/shmobile.txt |2 ++
 1 file changed, 2 insertions(+)

Index: renesas/Documentation/devicetree/bindings/arm/shmobile.txt
===
--- renesas.orig/Documentation/devicetree/bindings/arm/shmobile.txt
+++ renesas/Documentation/devicetree/bindings/arm/shmobile.txt
@@ -75,5 +75,7 @@ Boards:
 compatible = "renesas,salvator-x", "renesas,r8a7796";
   - SILK (RTP0RC7794LCB00011S)
 compatible = "renesas,silk", "renesas,r8a7794"
+  - SK-RZG1M (YR8A77430S000BE)
+compatible = "renesas,sk-rzg1m", "renesas,r8a7743"
   - Wheat
 compatible = "renesas,wheat", "renesas,r8a7792"

[PATCH RFC v2 9/12] ARM: dts: r8a7743: add IRQC support

[Sergei Shtylyov]

Describe the IRQC interrupt controller in the R8A7743 device tree.

Signed-off-by: Sergei Shtylyov 

---
Changes in version 2:
- new patch.

 arch/arm/boot/dts/r8a7743.dtsi |   19 +++
 1 file changed, 19 insertions(+)

Index: renesas/arch/arm/boot/dts/r8a7743.dtsi
===
--- renesas.orig/arch/arm/boot/dts/r8a7743.dtsi
+++ renesas/arch/arm/boot/dts/r8a7743.dtsi
@@ -72,6 +72,25 @@
  IRQ_TYPE_LEVEL_HIGH)>;
};
 
+   irqc: interrupt-controller@e61c {
+   compatible = "renesas,irqc-r8a7743", "renesas,irqc";
+   #interrupt-cells = <2>;
+   interrupt-controller;
+   reg = <0 0xe61c 0 0x200>;
+   interrupts = ,
+,
+,
+,
+,
+,
+,
+,
+,
+;
+   clocks = <_clks R8A7743_CLK_IRQC>;
+   power-domains = < R8A7743_PD_ALWAYS_ON>;
+   };
+
timer {
compatible = "arm,armv7-timer";
interrupts = 

[PATCH RFC v2 8/12] ARM: dts: r8a7743: add Ether support

[Sergei Shtylyov]

Define the generic R8A7743 part of the Ether device node.

Based on the original (and large) patch by Dmitry Shifrin
.

Signed-off-by: Sergei Shtylyov 

---
Changes in version 2:
- new patch.

 arch/arm/boot/dts/r8a7743.dtsi |   12 
 1 file changed, 12 insertions(+)

Index: renesas/arch/arm/boot/dts/r8a7743.dtsi
===
--- renesas.orig/arch/arm/boot/dts/r8a7743.dtsi
+++ renesas/arch/arm/boot/dts/r8a7743.dtsi
@@ -415,6 +415,18 @@
status = "disabled";
};
 
+   ether: ethernet@ee70 {
+   compatible = "renesas,ether-r8a7743";
+   reg = <0 0xee70 0 0x400>;
+   interrupts = ;
+   clocks = <_clks R8A7743_CLK_ETHER>;
+   power-domains = < R8A7743_PD_ALWAYS_ON>;
+   phy-mode = "rmii";
+   #address-cells = <1>;
+   #size-cells = <0>;
+   status = "disabled";
+   };
+
/* Special CPG clocks */
cpg_clocks: cpg_clocks@e615 {
compatible = "renesas,r8a7743-cpg-clocks",

[PATCH RFC v2 7/12] ARM: dts: r8a7743: add [H]SCIF[AB] support

[Sergei Shtylyov]

Describe [H]SCIF[AB] ports in the R8A7743 device tree.

Based on the original (and large) patch by Dmitry Shifrin
.

Signed-off-by: Sergei Shtylyov 

---
Changes in version 2:
- used  the new RZ/G family "compatible" prop values, reformatting where needed;
- fixed the size cells of the SCIFB device nodes' "reg" properties;
- changed the size cells of the "reg" properties to hexadecimal;
- indented the SCIFA1 device node's closing brace correctly
- adjusted the patch description, renamed the patch.

 arch/arm/boot/dts/r8a7743.dtsi |  261 +
 1 file changed, 261 insertions(+)

Index: renesas/arch/arm/boot/dts/r8a7743.dtsi
===
--- renesas.orig/arch/arm/boot/dts/r8a7743.dtsi
+++ renesas/arch/arm/boot/dts/r8a7743.dtsi
@@ -154,6 +154,267 @@
dma-channels = <15>;
};
 
+   scifa0: serial@e6c4 {
+   compatible = "renesas,scifa-r8a7743",
+"renesas,rzg-scifa", "renesas,scifa";
+   reg = <0 0xe6c4 0 0x40>;
+   interrupts = ;
+   clocks = <_clks R8A7743_CLK_SCIFA0>;
+   clock-names = "fck";
+   dmas = < 0x21>, < 0x22>,
+  < 0x21>, < 0x22>;
+   dma-names = "tx", "rx", "tx", "rx";
+   power-domains = < R8A7743_PD_ALWAYS_ON>;
+   status = "disabled";
+   };
+
+   scifa1: serial@e6c5 {
+   compatible = "renesas,scifa-r8a7743",
+"renesas,rzg-scifa", "renesas,scifa";
+   reg = <0 0xe6c5 0 0x40>;
+   interrupts = ;
+   clocks = <_clks R8A7743_CLK_SCIFA1>;
+   clock-names = "fck";
+   dmas = < 0x25>, < 0x26>,
+  < 0x25>, < 0x26>;
+   dma-names = "tx", "rx", "tx", "rx";
+   power-domains = < R8A7743_PD_ALWAYS_ON>;
+   status = "disabled";
+   };
+
+   scifa2: serial@e6c6 {
+   compatible = "renesas,scifa-r8a7743",
+"renesas,rzg-scifa", "renesas,scifa";
+   reg = <0 0xe6c6 0 0x40>;
+   interrupts = ;
+   clocks = <_clks R8A7743_CLK_SCIFA2>;
+   clock-names = "fck";
+   dmas = < 0x27>, < 0x28>,
+  < 0x27>, < 0x28>;
+   dma-names = "tx", "rx", "tx", "rx";
+   power-domains = < R8A7743_PD_ALWAYS_ON>;
+   status = "disabled";
+   };
+
+   scifa3: serial@e6c7 {
+   compatible = "renesas,scifa-r8a7743",
+"renesas,rzg-scifa", "renesas,scifa";
+   reg = <0 0xe6c7 0 0x40>;
+   interrupts = ;
+   clocks = <_clks R8A7743_CLK_SCIFA3>;
+   clock-names = "fck";
+   dmas = < 0x1b>, < 0x1c>,
+  < 0x1b>, < 0x1c>;
+   dma-names = "tx", "rx", "tx", "rx";
+   power-domains = < R8A7743_PD_ALWAYS_ON>;
+   status = "disabled";
+   };
+
+   scifa4: serial@e6c78000 {
+   compatible = "renesas,scifa-r8a7743",
+"renesas,rzg-scifa", "renesas,scifa";
+   reg = <0 0xe6c78000 0 0x40>;
+   interrupts = ;
+   clocks = <_clks R8A7743_CLK_SCIFA4>;
+   clock-names = "fck";
+   dmas = < 0x1f>, < 0x20>,
+  < 0x1f>, < 0x20>;
+   dma-names = "tx", "rx", "tx", "rx";
+   power-domains = < R8A7743_PD_ALWAYS_ON>;
+   status = "disabled";
+   };
+
+   scifa5: serial@e6c8 {
+   compatible = "renesas,scifa-r8a7743",
+"renesas,rzg-scifa", "renesas,scifa";
+   reg = <0 0xe6c8 0 0x40>;
+   interrupts = ;
+   clocks = <_clks R8A7743_CLK_SCIFA5>;
+   clock-names = "fck";
+   dmas = < 0x23>, < 0x24>,
+  < 0x23>, < 0x24>;
+   dma-names = "tx", "rx", "tx", "rx";
+   power-domains = < R8A7743_PD_ALWAYS_ON>;
+   status = "disabled";
+   };
+
+   

[PATCH RFC v2 6/12] ARM: dts: r8a7743: add SYS-DMAC support

[Sergei Shtylyov]

Describe SYS-DMAC0/1 in the R8A7743 device tree.

Based on the original (and large) patch by Dmitry Shifrin
.

Signed-off-by: Sergei Shtylyov 
Reviewed-by: Geert Uytterhoeven 

---
Changes in version 2:
- added Geert's tag.

 arch/arm/boot/dts/r8a7743.dtsi |   64 +
 1 file changed, 64 insertions(+)

Index: renesas/arch/arm/boot/dts/r8a7743.dtsi
===
--- renesas.orig/arch/arm/boot/dts/r8a7743.dtsi
+++ renesas/arch/arm/boot/dts/r8a7743.dtsi
@@ -90,6 +90,70 @@
#power-domain-cells = <1>;
};
 
+   dmac0: dma-controller@e670 {
+   compatible = "renesas,dmac-r8a7743",
+"renesas,rcar-dmac";
+   reg = <0 0xe670 0 0x2>;
+   interrupts = ;
+   interrupt-names = "error",
+   "ch0", "ch1", "ch2", "ch3",
+   "ch4", "ch5", "ch6", "ch7",
+   "ch8", "ch9", "ch10", "ch11",
+   "ch12", "ch13", "ch14";
+   clocks = <_clks R8A7743_CLK_SYS_DMAC0>;
+   clock-names = "fck";
+   power-domains = < R8A7743_PD_ALWAYS_ON>;
+   #dma-cells = <1>;
+   dma-channels = <15>;
+   };
+
+   dmac1: dma-controller@e672 {
+   compatible = "renesas,dmac-r8a7743",
+"renesas,rcar-dmac";
+   reg = <0 0xe672 0 0x2>;
+   interrupts = ;
+   interrupt-names = "error",
+   "ch0", "ch1", "ch2", "ch3",
+   "ch4", "ch5", "ch6", "ch7",
+   "ch8", "ch9", "ch10", "ch11",
+   "ch12", "ch13", "ch14";
+   clocks = <_clks R8A7743_CLK_SYS_DMAC1>;
+   clock-names = "fck";
+   power-domains = < R8A7743_PD_ALWAYS_ON>;
+   #dma-cells = <1>;
+   dma-channels = <15>;
+   };
+
/* Special CPG clocks */
cpg_clocks: cpg_clocks@e615 {
compatible = "renesas,r8a7743-cpg-clocks",

[PATCH RFC v2 4/12] ARM: shmobile: r8a7743: basic SoC support

[Sergei Shtylyov]

Add minimal support for the RZ/G1M (R8A7743) SoC.

Based on the original (and large) patch by Dmitry Shifrin
.

Signed-off-by: Sergei Shtylyov 
Reviewed-by: Geert Uytterhoeven 

---
Changes in version 2:
- removed "select I2C" from the R8A7743 Kconfig entry;
- documented the R8A7743 device tree binding;
- added Geert's tag.

 Documentation/devicetree/bindings/arm/shmobile.txt |2 +
 arch/arm/mach-shmobile/Kconfig |4 ++
 arch/arm/mach-shmobile/Makefile|1 
 arch/arm/mach-shmobile/setup-r8a7743.c |   34 +
 4 files changed, 41 insertions(+)

Index: renesas/Documentation/devicetree/bindings/arm/shmobile.txt
===
--- renesas.orig/Documentation/devicetree/bindings/arm/shmobile.txt
+++ renesas/Documentation/devicetree/bindings/arm/shmobile.txt
@@ -13,6 +13,8 @@ SoCs:
 compatible = "renesas,r8a73a4"
   - R-Mobile A1 (R8A77400)
 compatible = "renesas,r8a7740"
+  - RZ/G1M (R8A77430)
+compatible = "renesas,r8a7743"
   - R-Car M1A (R8A77781)
 compatible = "renesas,r8a7778"
   - R-Car H1 (R8A77790)
Index: renesas/arch/arm/mach-shmobile/Kconfig
===
--- renesas.orig/arch/arm/mach-shmobile/Kconfig
+++ renesas/arch/arm/mach-shmobile/Kconfig
@@ -68,6 +68,10 @@ config ARCH_R8A7740
select ARCH_RMOBILE
select RENESAS_INTC_IRQPIN
 
+config ARCH_R8A7743
+   bool "RZ/G1M (R8A77430)"
+   select ARCH_RCAR_GEN2
+
 config ARCH_R8A7778
bool "R-Car M1A (R8A77781)"
select ARCH_RCAR_GEN1
Index: renesas/arch/arm/mach-shmobile/Makefile
===
--- renesas.orig/arch/arm/mach-shmobile/Makefile
+++ renesas/arch/arm/mach-shmobile/Makefile
@@ -9,6 +9,7 @@ obj-y   := timer.o
 obj-$(CONFIG_ARCH_SH73A0)  += setup-sh73a0.o
 obj-$(CONFIG_ARCH_R8A73A4) += setup-r8a73a4.o
 obj-$(CONFIG_ARCH_R8A7740) += setup-r8a7740.o
+obj-$(CONFIG_ARCH_R8A7743) += setup-r8a7743.o
 obj-$(CONFIG_ARCH_R8A7778) += setup-r8a7778.o
 obj-$(CONFIG_ARCH_R8A7779) += setup-r8a7779.o pm-r8a7779.o
 obj-$(CONFIG_ARCH_R8A7790) += setup-r8a7790.o
Index: renesas/arch/arm/mach-shmobile/setup-r8a7743.c
===
--- /dev/null
+++ renesas/arch/arm/mach-shmobile/setup-r8a7743.c
@@ -0,0 +1,34 @@
+/*
+ * r8a7743 processor support
+ *
+ * Copyright (C) 2016 Cogent Embedded, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation; of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include 
+
+#include 
+
+#include "common.h"
+#include "rcar-gen2.h"
+
+static const char * const r8a7743_boards_compat_dt[] __initconst = {
+   "renesas,r8a7743",
+   NULL,
+};
+
+DT_MACHINE_START(R8A7743_DT, "Generic R8A7743 (Flattened Device Tree)")
+   .init_early = shmobile_init_delay,
+   .init_time  = rcar_gen2_timer_init,
+   .init_late  = shmobile_init_late,
+   .reserve= rcar_gen2_reserve,
+   .dt_compat  = r8a7743_boards_compat_dt,
+MACHINE_END

[PATCH RFC v2 3/12] soc: renesas: rcar-sysc: add R8A7743 support

[Sergei Shtylyov]

Add support for RZ/G1M (R8A7743) SoC power areas to the R-Car SYSC driver.

Based on the original (and large) patch by Dmitry Shifrin
.

Signed-off-by: Sergei Shtylyov 
Reviewed-by: Geert Uytterhoeven 

---
Changes in version 2:
- documented the R8A7743 SYSC device tree binding;
- added "R-Car" to the patch description;
- added Geert's tag.

 Documentation/devicetree/bindings/power/renesas,rcar-sysc.txt |7 +-
 drivers/soc/renesas/Makefile  |1 
 drivers/soc/renesas/r8a7743-sysc.c|   32 ++
 drivers/soc/renesas/rcar-sysc.c   |3 
 drivers/soc/renesas/rcar-sysc.h   |1 
 5 files changed, 41 insertions(+), 3 deletions(-)

Index: renesas/Documentation/devicetree/bindings/power/renesas,rcar-sysc.txt
===
--- renesas.orig/Documentation/devicetree/bindings/power/renesas,rcar-sysc.txt
+++ renesas/Documentation/devicetree/bindings/power/renesas,rcar-sysc.txt
@@ -1,12 +1,13 @@
-DT bindings for the Renesas R-Car System Controller
+DT bindings for the Renesas R-Car (RZ/G) System Controller
 
 == System Controller Node ==
 
-The R-Car System Controller provides power management for the CPU cores and
-various coprocessors.
+The R-Car (RZ/G) System Controller provides power management for the CPU cores
+and various coprocessors.
 
 Required properties:
   - compatible: Must contain exactly one of the following:
+  - "renesas,r8a7743-sysc" (RZ/G1M)
   - "renesas,r8a7779-sysc" (R-Car H1)
   - "renesas,r8a7790-sysc" (R-Car H2)
   - "renesas,r8a7791-sysc" (R-Car M2-W)
Index: renesas/drivers/soc/renesas/Makefile
===
--- renesas.orig/drivers/soc/renesas/Makefile
+++ renesas/drivers/soc/renesas/Makefile
@@ -1,3 +1,4 @@
+obj-$(CONFIG_ARCH_R8A7743) += rcar-sysc.o r8a7743-sysc.o
 obj-$(CONFIG_ARCH_R8A7779) += rcar-sysc.o r8a7779-sysc.o
 obj-$(CONFIG_ARCH_R8A7790) += rcar-sysc.o r8a7790-sysc.o
 obj-$(CONFIG_ARCH_R8A7791) += rcar-sysc.o r8a7791-sysc.o
Index: renesas/drivers/soc/renesas/r8a7743-sysc.c
===
--- /dev/null
+++ renesas/drivers/soc/renesas/r8a7743-sysc.c
@@ -0,0 +1,32 @@
+/*
+ * Renesas RZ/G1M System Controller
+ *
+ * Copyright (C) 2016 Cogent Embedded Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation; of the License.
+ */
+
+#include 
+#include 
+
+#include 
+
+#include "rcar-sysc.h"
+
+static const struct rcar_sysc_area r8a7743_areas[] __initconst = {
+   { "always-on",  0, 0, R8A7743_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
+   { "ca15-scu",   0x180, 0, R8A7743_PD_CA15_SCU,  R8A7743_PD_ALWAYS_ON,
+ PD_SCU },
+   { "ca15-cpu0",   0x40, 0, R8A7743_PD_CA15_CPU0, R8A7743_PD_CA15_SCU,
+ PD_CPU_NOCR },
+   { "ca15-cpu1",   0x40, 1, R8A7743_PD_CA15_CPU1, R8A7743_PD_CA15_SCU,
+ PD_CPU_NOCR },
+   { "sgx", 0xc0, 0, R8A7743_PD_SGX,   R8A7743_PD_ALWAYS_ON },
+};
+
+const struct rcar_sysc_info r8a7743_sysc_info __initconst = {
+   .areas = r8a7743_areas,
+   .num_areas = ARRAY_SIZE(r8a7743_areas),
+};
Index: renesas/drivers/soc/renesas/rcar-sysc.c
===
--- renesas.orig/drivers/soc/renesas/rcar-sysc.c
+++ renesas/drivers/soc/renesas/rcar-sysc.c
@@ -275,6 +275,9 @@ finalize:
 }
 
 static const struct of_device_id rcar_sysc_matches[] = {
+#ifdef CONFIG_ARCH_R8A7743
+   { .compatible = "renesas,r8a7743-sysc", .data = _sysc_info },
+#endif
 #ifdef CONFIG_ARCH_R8A7779
{ .compatible = "renesas,r8a7779-sysc", .data = _sysc_info },
 #endif
Index: renesas/drivers/soc/renesas/rcar-sysc.h
===
--- renesas.orig/drivers/soc/renesas/rcar-sysc.h
+++ renesas/drivers/soc/renesas/rcar-sysc.h
@@ -50,6 +50,7 @@ struct rcar_sysc_info {
unsigned int num_areas;
 };
 
+extern const struct rcar_sysc_info r8a7743_sysc_info;
 extern const struct rcar_sysc_info r8a7779_sysc_info;
 extern const struct rcar_sysc_info r8a7790_sysc_info;
 extern const struct rcar_sysc_info r8a7791_sysc_info;

[PATCH RFC v2 2/12] ARM: shmobile: r8a7743: add power domain index macros

[Sergei Shtylyov]

Add macros usable by the device tree sources to reference R8A7743 SYSC power
domains by index.

Based on the original (and large) patch by Dmitry Shifrin
.

Signed-off-by: Sergei Shtylyov 
Reviewed-by: Geert Uytterhoeven 

---
Changes in version 2:
- added Geert's tag.

 include/dt-bindings/power/r8a7743-sysc.h |   25 +
 1 file changed, 25 insertions(+)

Index: renesas/include/dt-bindings/power/r8a7743-sysc.h
===
--- /dev/null
+++ renesas/include/dt-bindings/power/r8a7743-sysc.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2016 Cogent Embedded Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __DT_BINDINGS_POWER_R8A7743_SYSC_H__
+#define __DT_BINDINGS_POWER_R8A7743_SYSC_H__
+
+/*
+ * These power domain indices match the numbers of the interrupt bits
+ * representing the power areas in the various Interrupt Registers
+ * (e.g. SYSCISR, Interrupt Status Register)
+ */
+
+#define R8A7743_PD_CA15_CPU00
+#define R8A7743_PD_CA15_CPU11
+#define R8A7743_PD_CA15_SCU12
+#define R8A7743_PD_SGX 20
+
+/* Always-on power area */
+#define R8A7743_PD_ALWAYS_ON   32
+
+#endif /* __DT_BINDINGS_POWER_R8A7743_SYSC_H__ */

[PATCH RFC v2 1/12] ARM: shmobile: r8a7743: add clock index macros

[Sergei Shtylyov]

Add macros usable by the device tree sources to reference the R8A7743
clocks  by index.

Based on the original (and large) patch by Dmitry Shifrin
.

Signed-off-by: Sergei Shtylyov 

---
Changes in version 2:
- fixed the file copyright.

 include/dt-bindings/clock/r8a7743-clock.h |  157 ++
 1 file changed, 157 insertions(+)

Index: renesas/include/dt-bindings/clock/r8a7743-clock.h
===
--- /dev/null
+++ renesas/include/dt-bindings/clock/r8a7743-clock.h
@@ -0,0 +1,157 @@
+/*
+ * Copyright (C) 2016 Cogent Embedded Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __DT_BINDINGS_CLOCK_R8A7743_H__
+#define __DT_BINDINGS_CLOCK_R8A7743_H__
+
+/* CPG */
+#define R8A7743_CLK_MAIN   0
+#define R8A7743_CLK_PLL0   1
+#define R8A7743_CLK_PLL1   2
+#define R8A7743_CLK_PLL3   3
+#define R8A7743_CLK_LB 4
+#define R8A7743_CLK_QSPI   5
+#define R8A7743_CLK_SDH6
+#define R8A7743_CLK_SD07
+#define R8A7743_CLK_Z  8
+#define R8A7743_CLK_RCAN   9
+
+/* MSTP0 */
+#define R8A7743_CLK_MSIOF0 0
+
+/* MSTP1 */
+#define R8A7743_CLK_VCP0   1
+#define R8A7743_CLK_VPC0   3
+#define R8A7743_CLK_TMU1   11
+#define R8A7743_CLK_3DG12
+#define R8A7743_CLK_2DDMAC 15
+#define R8A7743_CLK_FDP1_1 18
+#define R8A7743_CLK_FDP1_0 19
+#define R8A7743_CLK_TMU3   21
+#define R8A7743_CLK_TMU2   22
+#define R8A7743_CLK_CMT0   24
+#define R8A7743_CLK_TMU0   25
+#define R8A7743_CLK_VSP1_DU1   27
+#define R8A7743_CLK_VSP1_DU0   28
+#define R8A7743_CLK_VSP1_S 31
+
+/* MSTP2 */
+#define R8A7743_CLK_SCIFA2 2
+#define R8A7743_CLK_SCIFA1 3
+#define R8A7743_CLK_SCIFA0 4
+#define R8A7743_CLK_MSIOF2 5
+#define R8A7743_CLK_SCIFB0 6
+#define R8A7743_CLK_SCIFB1 7
+#define R8A7743_CLK_MSIOF1 8
+#define R8A7743_CLK_SCIFB2 16
+#define R8A7743_CLK_SYS_DMAC1  18
+#define R8A7743_CLK_SYS_DMAC0  19
+
+/* MSTP3 */
+#define R8A7743_CLK_TPU0   4
+#define R8A7743_CLK_SDHI2  11
+#define R8A7743_CLK_SDHI1  12
+#define R8A7743_CLK_SDHI0  14
+#define R8A7743_CLK_MMCIF0 15
+#define R8A7743_CLK_IIC0   18
+#define R8A7743_CLK_PCIEC  19
+#define R8A7743_CLK_IIC1   23
+#define R8A7743_CLK_SSUSB  28
+#define R8A7743_CLK_CMT1   29
+#define R8A7743_CLK_USBDMAC0   30
+#define R8A7743_CLK_USBDMAC1   31
+
+/* MSTP4 */
+#define R8A7743_CLK_IRQC   7
+
+/* MSTP5 */
+#define R8A7743_CLK_AUDIO_DMAC11
+#define R8A7743_CLK_AUDIO_DMAC02
+#define R8A7743_CLK_THERMAL22
+#define R8A7743_CLK_PWM23
+
+/* MSTP7 */
+#define R8A7743_CLK_EHCI   3
+#define R8A7743_CLK_HSUSB  4
+#define R8A7743_CLK_HSCIF2 13
+#define R8A7743_CLK_SCIF5  14
+#define R8A7743_CLK_SCIF4  15
+#define R8A7743_CLK_HSCIF1 16
+#define R8A7743_CLK_HSCIF0 17
+#define R8A7743_CLK_SCIF3  18
+#define R8A7743_CLK_SCIF2  19
+#define R8A7743_CLK_SCIF1  20
+#define R8A7743_CLK_SCIF0  21
+#define R8A7743_CLK_DU123
+#define R8A7743_CLK_DU024
+#define R8A7743_CLK_LVDS0  26
+
+/* MSTP8 */
+#define R8A7743_CLK_IPMMU_SGX  0
+#define R8A7743_CLK_VIN2   9
+#define R8A7743_CLK_VIN1   10
+#define R8A7743_CLK_VIN0   11
+#define R8A7743_CLK_ETHER  13
+#define R8A7743_CLK_SATA1  14
+#define R8A7743_CLK_SATA0  15
+
+/* MSTP9 */
+#define R8A7743_CLK_GPIO7  4
+#define R8A7743_CLK_GPIO6  5
+#define R8A7743_CLK_GPIO5  7
+#define R8A7743_CLK_GPIO4  8
+#define R8A7743_CLK_GPIO3  9
+#define R8A7743_CLK_GPIO2  10
+#define R8A7743_CLK_GPIO1  11
+#define R8A7743_CLK_GPIO0  12
+#define R8A7743_CLK_RCAN1  15
+#define R8A7743_CLK_RCAN0  16
+#define R8A7743_CLK_QSPI_MOD   17
+#define R8A7743_CLK_I2C5   25
+#define R8A7743_CLK_IICDVFS26
+#define R8A7743_CLK_I2C4   27
+#define R8A7743_CLK_I2C3   28

[PATCH RFC v2 0/12] Add R8A7743/SK-RZG1M board support

[Sergei Shtylyov]

Hello.

   Here's the set of 12 patches against Simon Horman's 'renesas.git' repo,
'renesas-devel-20160926-v4.8-rc8' tag. I'm adding the device tree support for
the R8A7743-based SK-RZG1M board. The SoC is close to R8A7791 and the board
seems  identical to the R8A7791/Porter board. This version includes the Ether,
so the board should boot with NFS root now. I tried to address all the comments
to the version 1 (except the need to use the new CPG/MSSR drivers -- this one
will be addressed RSN). The DMAC/SCIF/IRQC bindings patches posted recently are
needed for scripts/checkpatch.pl to be happy. :-)

[1/12] ARM: shmobile: r8a7743: add clock index macros
[2/12] ARM: shmobile: r8a7743: add power domain index macros
[3/12] soc: renesas: rcar-sysc: add R8A7743 support
[4/12] ARM: shmobile: r8a7743: basic SoC support
[5/12] ARM: dts: r8a7743: initial SoC device tree
[6/12] ARM: dts: r8a7743: add SYS-DMAC support
[7/12] ARM: dts: r8a7743: add [H]SCIF[AB] support
[8/12] ARM: dts: r8a7743: add Ether support
[9/12] ARM: dts: r8a7743: add IRQC support
[10/12] DT: arm: shmobile: document SK-RZG1M board
[11/12] ARM: dts: sk-rzg1m: initial device tree
[12/12] ARM: dts: sk-rzg1m: add Ether support

WBR, Sergei

[PATCH] sh-sci: add R8A7743/5 support

[Sergei Shtylyov]

Renesas  RZ/G SoC also have the SCIF, SCIFA, SCIFB, and HSCIF ports.
Document RZ/G1[ME] (also known as R8A774[35]) SoC bindings along with
the RZ/G family bindings.  The driver itself also needs to recognize
the latter binding for the SCIF ports, so teach it...

Signed-off-by: Sergei Shtylyov 

---
This patch is against the 'tty-next' branch of GregKH's 'tty.git' repo.

 Documentation/devicetree/bindings/serial/renesas,sci-serial.txt |   12 
++
 drivers/tty/serial/sh-sci.c |3 ++
 2 files changed, 15 insertions(+)

Index: tty/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
===
--- tty.orig/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
+++ tty/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
@@ -9,6 +9,14 @@ Required properties:
 - "renesas,scifb-r8a73a4" for R8A73A4 (R-Mobile APE6) SCIFB compatible 
UART.
 - "renesas,scifa-r8a7740" for R8A7740 (R-Mobile A1) SCIFA compatible UART.
 - "renesas,scifb-r8a7740" for R8A7740 (R-Mobile A1) SCIFB compatible UART.
+- "renesas,scif-r8a7743" for R8A7743 (RZ/G1M) SCIF compatible UART.
+- "renesas,scifa-r8a7743" for R8A7743 (RZ/G1M) SCIFA compatible UART.
+- "renesas,scifb-r8a7743" for R8A7743 (RZ/G1M) SCIFB compatible UART.
+- "renesas,hscif-r8a7743" for R8A7743 (RZ/G1M) HSCIF compatible UART.
+- "renesas,scif-r8a7745" for R8A7745 (RZ/G1E) SCIF compatible UART.
+- "renesas,scifa-r8a7745" for R8A7745 (RZ/G1E) SCIFA compatible UART.
+- "renesas,scifb-r8a7745" for R8A7745 (RZ/G1E) SCIFB compatible UART.
+- "renesas,hscif-r8a7745" for R8A7745 (RZ/G1E) HSCIF compatible UART.
 - "renesas,scif-r8a7778" for R8A7778 (R-Car M1) SCIF compatible UART.
 - "renesas,scif-r8a7779" for R8A7779 (R-Car H1) SCIF compatible UART.
 - "renesas,scif-r8a7790" for R8A7790 (R-Car H2) SCIF compatible UART.
@@ -38,11 +46,15 @@ Required properties:
 - "renesas,rcar-gen1-scif" for R-Car Gen1 SCIF compatible UART,
 - "renesas,rcar-gen2-scif" for R-Car Gen2 SCIF compatible UART,
 - "renesas,rcar-gen3-scif" for R-Car Gen3 SCIF compatible UART,
+- "renesas,rzg-scif" for RZ/G SCIF compatible UART.
 - "renesas,rcar-gen2-scifa" for R-Car Gen2 SCIFA compatible UART,
+- "renesas,rzg-scifa" for RZ/G SCIFA compatible UART.
 - "renesas,rcar-gen2-scifb" for R-Car Gen2 SCIFB compatible UART,
+- "renesas,rzg-scifb" for RZ/G SCIFB compatible UART.
 - "renesas,rcar-gen1-hscif" for R-Car Gen1 HSCIF compatible UART,
 - "renesas,rcar-gen2-hscif" for R-Car Gen2 HSCIF compatible UART,
 - "renesas,rcar-gen3-hscif" for R-Car Gen3 HSCIF compatible UART,
+- "renesas,rzg-hscif" for RZ/G HSCIF compatible UART.
 - "renesas,scif" for generic SCIF compatible UART.
 - "renesas,scifa" for generic SCIFA compatible UART.
 - "renesas,scifb" for generic SCIFB compatible UART.
Index: tty/drivers/tty/serial/sh-sci.c
===
--- tty.orig/drivers/tty/serial/sh-sci.c
+++ tty/drivers/tty/serial/sh-sci.c
@@ -2950,6 +2950,9 @@ static const struct of_device_id of_sci_
}, {
.compatible = "renesas,rcar-gen3-scif",
.data = SCI_OF_DATA(PORT_SCIF, SCIx_SH4_SCIF_BRG_REGTYPE),
+   }, {
+   .compatible = "renesas,rzg-scif",
+   .data = SCI_OF_DATA(PORT_SCIF, SCIx_SH4_SCIF_BRG_REGTYPE),
},
/* Generic types */
{

[PATCH] DT: irqchip: renesas-irqc: document R8A7743/5 support

[Sergei Shtylyov]

Renesas  RZ/G SoC have the R-Car gen2 compatible IRQC interrupt controllers.
Document RZ/G1[ME] (also known as R8A774[35]) SoC bindings.

Signed-off-by: Sergei Shtylyov 

---
The patch is against the 'tip.git' repo's 'irq/core' branch.

 Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt |4 
+++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Index: 
tip/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt
===
--- 
tip.orig/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt
+++ tip/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt
@@ -1,10 +1,12 @@
-DT bindings for the R-Mobile/R-Car interrupt controller
+DT bindings for the R-Mobile/R-Car/RZ/G interrupt controller
 
 Required properties:
 
 - compatible: has to be "renesas,irqc-", "renesas,irqc" as fallback.
   Examples with soctypes are:
 - "renesas,irqc-r8a73a4" (R-Mobile APE6)
+- "renesas,irqc-r8a7743" (RZ/G1M)
+- "renesas,irqc-r8a7745" (RZ/G1E)
 - "renesas,irqc-r8a7790" (R-Car H2)
 - "renesas,irqc-r8a7791" (R-Car M2-W)
 - "renesas,irqc-r8a7792" (R-Car V2H)

[PATCH/RFC] tty: serial_core: Move uart_console() check after console registration

[Geert Uytterhoeven]

The port->console flag is always false, as uart_console() is called
before the serial console has been registered.

Hence for a serial port used as the console, uart_tty_port_shutdown()
will still be called when userspace closes the port, powering it down.
This will lead to a system lock up when the serial console driver writes
to the serial port's registers.

To fix this, move the setting of port->console after the call to
uart_configure_port(), which registers the serial console.

Fixes: 761ed4a94582ab29 ("tty: serial_core: convert uart_close to use 
tty_port_close")
Reported-by: Niklas Söderlund 
Reported-by: Takeshi Kihara 
Signed-off-by: Geert Uytterhoeven 
---
RFC because of the comment "If this port is a console, then the spinlock
is already initialised", and the pre-existing code calling
uart_console() before uart_configure_port().

Can be reproduced on Renesas boards:
  1. With systemd: hangs during boot,
  2. Without systemd: "telinit n" to switch to a runlevel that doesn't
 run a getty on ttySC0, and trigger kernel output.
---
 drivers/tty/serial/serial_core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 6e4f63627479db8d..ce8899c13af3d97f 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -2746,8 +2746,6 @@ int uart_add_one_port(struct uart_driver *drv, struct 
uart_port *uport)
uport->cons = drv->cons;
uport->minor = drv->tty_driver->minor_start + uport->line;
 
-   port->console = uart_console(uport);
-
/*
 * If this port is a console, then the spinlock is already
 * initialised.
@@ -2761,6 +2759,8 @@ int uart_add_one_port(struct uart_driver *drv, struct 
uart_port *uport)
 
uart_configure_port(drv, state, uport);
 
+   port->console = uart_console(uport);
+
num_groups = 2;
if (uport->attr_group)
num_groups++;
-- 
1.9.1

Re: GEN2:Lager: Only 1 core works when turning off the SW8-PIN4

[Geert Uytterhoeven]

Hi Hiep,

On Thu, Sep 29, 2016 at 1:03 PM, Hiep Cao Minh  wrote:
> I'd like to report the issue of the CPU operation.
> We tested and found it on Lager board at linux-v4.8-rcx.
>
> The test procedure is the following:
>
> Confirmation command:
>
> # cat /proc/interrupts
> CPU0
> 19: 2509 GIC-0 27 Level arch_timer
> 21: 0 GIC-0 36 Level e605.gpio
> 22: 0 GIC-0 37 Level e6051000.gpio
> 23: 0 GIC-0 38 Level e6052000.gpio
> 24: 0 GIC-0 39 Level e6053000.gpio
> 25: 0 GIC-0 40 Level e6054000.gpio
> 26: 0 GIC-0 41 Level e6055000.gpio
> 27: 23 GIC-0 101 Level e61f.thermal
> …”
>
> This issue appears when we changed the SW8-PIN4 of Lager board.
>
> SW8-PIN4: ON
>
> + At linux-v4.7: OK (4 cores work together normally).
> + At linux-v4.8-rc2: OK (4 cores work together normally).
>
> SW8-PIN4: OFF
>
> + At linux-v4.7: -> OK(4 cores work together normally).
> + At linux-v4.8-rc2: -> NG(Only 1 core works).

And the kernel prints "Unable to boot CPU%u when MD21 is set", right?

> We tried to find out the issued patch and we realize that it happens from
> the following patch:
> " 043248c Merge tag 'armsoc-dt' of
> git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc"

The issue you're seeing is due to a combination of commits 5f3bca0db8ac01a7
("ARM: shmobile: apmu: Add APMU DT support via Enable method") and
dc378795156d980c ("ARM: dts: r8a7790: Add APMU nodes").

When debug mode is enabled (SW8-4 = OFF), trying to boot secondary CPUs may
lock up the system after a cold boot, depending of boot load version.  Hence
we explicitly prohibit that. BTW, this has been the case on Koelsch since commit
277efd30cfc72ec2 ("ARM: shmobile: Check r8a7791 MD21 at SMP boot").

Now, does series "[PATCH/RFT 0/4] ARM: shmobile: R-Car Gen2: Allow booting
secondary CPU cores in debug mode" (included in all renesas-drivers releases
during September) fix it for you?

Thanks!

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@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 0/2] dma-mapping: fix ia64 and m32r build error and warnings

[Niklas Söderlund]

On 2016-09-29 17:40:04 +0530, Vinod Koul wrote:
> On Thu, Sep 29, 2016 at 12:02:38PM +0200, Niklas Söderlund wrote:
> > From: Niklas Söderlund 
> > 
> > Hi Vindo,
> 
> :(

I'm sorry, my hands sometimes moves faster then my head.

> 
> > 
> > This small series fixes the build error and warnings for ia64 and m32r 
> > which kbuild test robot found and where introduced in the series 
> > '[PATCHv9 0/6] dmaengine: rcar-dmac: add iommu support for slave 
> > transfers'.
> 
> Applied both

Thanks.

> 
> Thanks
> -- 
> ~Vinod

-- 
Regards,
Niklas Söderlund

Re: [PATCH 0/2] dma-mapping: fix ia64 and m32r build error and warnings

[Vinod Koul]

On Thu, Sep 29, 2016 at 12:02:38PM +0200, Niklas Söderlund wrote:
> From: Niklas Söderlund 
> 
> Hi Vindo,

:(

> 
> This small series fixes the build error and warnings for ia64 and m32r 
> which kbuild test robot found and where introduced in the series 
> '[PATCHv9 0/6] dmaengine: rcar-dmac: add iommu support for slave 
> transfers'.

Applied both

Thanks
-- 
~Vinod

[PATCH 2/2] dma-mapping: fix m32r build warning

[Niklas Söderlund]

From: Niklas Söderlund 

kbuild test robot reports:

   In file included from include/linux/skbuff.h:34:0,
from include/linux/icmpv6.h:4,
from include/linux/ipv6.h:75,
from include/net/ipv6.h:16,
from include/linux/sunrpc/clnt.h:27,
from include/linux/nfs_fs.h:30,
from fs/lockd/clntlock.c:13:
   include/linux/dma-mapping.h: In function 'dma_map_resource':
>> include/linux/dma-mapping.h:274:16: warning: unused variable 'pfn' 
>> [-Wunused-variable]
 unsigned long pfn = __phys_to_pfn(phys_addr);
   ^~~

The pfn value is only used once in the call to pfn_valid(), remove the
variable and calculate the pfn when it's needed. Note that the kbuild
report is old and PHYS_PFN() is now used instead of __phys_to_pfn() to
calculate the pfn.

Signed-off-by: Niklas Söderlund 
---
 include/linux/dma-mapping.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index ff7c87f..642cb4c 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -271,13 +271,12 @@ static inline dma_addr_t dma_map_resource(struct device 
*dev,
  unsigned long attrs)
 {
struct dma_map_ops *ops = get_dma_ops(dev);
-   unsigned long pfn = PHYS_PFN(phys_addr);
dma_addr_t addr;
 
BUG_ON(!valid_dma_direction(dir));
 
/* Don't allow RAM to be mapped */
-   BUG_ON(pfn_valid(pfn));
+   BUG_ON(pfn_valid(PHYS_PFN(phys_addr)));
 
addr = phys_addr;
if (ops->map_resource)
-- 
2.9.3

[PATCH 1/2] dma-mapping: fix ia64 build, use PHYS_PFN

[Niklas Söderlund]

From: Niklas Söderlund 

kbuild test robot reports:

   In file included from include/linux/skbuff.h:34:0,
from include/linux/tcp.h:21,
from drivers/net/ethernet/amd/xgbe/xgbe-drv.c:119:
   include/linux/dma-mapping.h: In function 'dma_map_resource':
>> include/linux/dma-mapping.h:274:22: error: implicit declaration of function 
>> '__phys_to_pfn' [-Werror=implicit-function-declaration]
 unsigned long pfn = __phys_to_pfn(phys_addr);
 ^

ia64 does not provide __phys_to_pfn(), use the PHYS_PFN() alias.

Signed-off-by: Niklas Söderlund 
---
 include/linux/dma-mapping.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 6e00c7f..ff7c87f 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -271,7 +271,7 @@ static inline dma_addr_t dma_map_resource(struct device 
*dev,
  unsigned long attrs)
 {
struct dma_map_ops *ops = get_dma_ops(dev);
-   unsigned long pfn = __phys_to_pfn(phys_addr);
+   unsigned long pfn = PHYS_PFN(phys_addr);
dma_addr_t addr;
 
BUG_ON(!valid_dma_direction(dir));
-- 
2.9.3

[PATCH 0/2] dma-mapping: fix ia64 and m32r build error and warnings

[Niklas Söderlund]

From: Niklas Söderlund 

Hi Vindo,

This small series fixes the build error and warnings for ia64 and m32r 
which kbuild test robot found and where introduced in the series 
'[PATCHv9 0/6] dmaengine: rcar-dmac: add iommu support for slave 
transfers'.

It is based ontop of:

git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/slave-dma.git next

The fixes are only compile tested for the ia64 and m32r architecture to 
show that the error and warnings are fixed. It is tested on ARM to prove 
that the intended functionality still works.

Kbuild test robot found one more class of warnings for the patch series 
mentioned above for the balackfin arch.

   include/linux/dma-mapping.h: In function 'dma_map_resource':
>> include/asm-generic/page.h:90:32: warning: comparison of unsigned expression 
>> >= 0 is always true [-Wtype-limits]
#define pfn_valid(pfn)  ((pfn) >= ARCH_PFN_OFFSET && ((pfn) - 
ARCH_PFN_OFFSET) < max_mapnr)
   ^

These warnings are not addressed in this series since they are not new 
or unique to original patch. They come from how pfn_valid() is 
implemented in include/asm-generic/page.h, if ARCH_PFN_OFFSET is 0 the 
warning is triggered. On the kbuild blackfin build it is defined as 
'(0x0 >> 12)' so any invocation of pfn_valid() will trigger it.

I tried to fix it but was unable to find a good solution. There is a 
MIPS specific fix for this in commit 95486e4 (MIPS: Fix flood of 
warnings about comparsion being always true.), but a similar fix for 
asm-generic seems to tricky for me to attempt since the macro needs to 
be turned into a static inline function and that might be harmful.  I 
also toyed with the solution of '#if ARCH_PFN_OFFSET == 0' to provided 
an alternative pfn_valid() macro, but since ARCH_PFN_OFFSET is defined 
as an expression and not a constant that wont work. If you can think of 
another way I be happy to try that out and see if I can make it work.

Niklas Söderlund (2):
  dma-mapping: fix ia64 build, use PHYS_PFN
  dma-mapping: fix m32r build warning

 include/linux/dma-mapping.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

-- 
2.9.3

Re: LVDS Support in R-Car E2(ALT) Board

[Laurent Pinchart]

On Thursday 29 Sep 2016 08:35:32 Geert Uytterhoeven wrote:
> On Thu, Sep 29, 2016 at 6:14 AM, Jithin T Raj wrote:
> > I have successfully applied the patch and build R-car M2 Kernel for
> > Koelsch Board..now it support LVDS..Thank you all especially Geert and
> > Laurent..now i tried the same source tree(v4.7.5) to build for R-Car
> 
> Good to hear it works on Koelsch!
> 
> > E2(ALT)Board to make LVDS up..but i am getting the following error
> > during making .dtb file
> > 
> > ubuntu@teltvm2468l:~/jithin_new/linux-4.7.5$ make -j4 r8a7794-alt.dtb
> > 
> >   DTC arch/arm/boot/dts/r8a7794-alt.dtb
> > 
> > Error: arch/arm/boot/dts/r8a77xx-aa104xd12-panel.dtsi:39.1-16 Label or
> > path lvds_connector not found FATAL ERROR: Syntax error parsing input
> > tree
> > make[1]: *** [arch/arm/boot/dts/r8a7794-alt.dtb] Error 1
> > make: *** [r8a7794-alt.dtb] Error 2
> > ubuntu@teltvm2468l:~/jithin_new/linux-4.7.5$
> > 
> > I have included the "#include "r8a77xx-aa104xd12-panel.dtsi" in
> > r8a7794-alt.dts
> > 
> > my source tree is v4.7.5 stable edition
> 
> No one has added LVDS support for r8a7794/alt yet.

The R8A7794 has no LVDS output. The Alt board uses an RGB to LVDS bridge, 
similar to the one used by the Marzen board. You can have a look at the Marzen 
DT to see how to implement that.

-- 
Regards,

Laurent Pinchart

Re: LVDS SUPPORT RCAR

[Laurent Pinchart]

Hello Jithin,

On Wednesday 28 Sep 2016 09:22:46 Jithin T Raj wrote:
> hi,
>first of all thanks alot for the support you are giving..when i tried to
> make .dtb file i am getting following error..I am using 3.10.31-ltsi

3.10.31 is very old. If you want community support I recommend upgrading to 
the mainline kernel. If you can't, you'll have to update your device tree (and 
possibly the DU driver) by backporting changes from mainline.

> ubuntu@teltvm2468l:~/Jithin/Koelsch/kernel$ make -j4 r8a7791-koelsch.dtb
>   CC  scripts/mod/devicetable-offsets.s
>   GEN scripts/mod/devicetable-offsets.h
>   HOSTCC  scripts/mod/file2alias.o
>   HOSTLD  scripts/mod/modpost
>   DTC arch/arm/boot/dts/r8a7791-koelsch.dtb
> Error: arch/arm/boot/dts/r8a77xx-aa104xd12-panel.dtsi:41.4-5 label or path,
> 'lvds_connector', not found FATAL ERROR: Syntax error parsing input tree
> make[1]: *** [arch/arm/boot/dts/r8a7791-koelsch.dtb] Error 1
> make: *** [r8a7791-koelsch.dtb] Error 2
> 
> here i am attaching my r8a7791.dts file

-- 
Regards,

Laurent Pinchart

Re: [PATCH] DT: dma: rcar-dmac: document R8A7743/5 support

[Geert Uytterhoeven]

On Thu, Sep 29, 2016 at 12:25 AM, Sergei Shtylyov
 wrote:
> Renesas  RZ/G SoC also have the R-Car gen2/3 compatible DMA controllers.
> Document RZ/G1[ME] (also known as R8A774[35]) SoC bindings.
>
> Signed-off-by: Sergei Shtylyov 

Acked-by: Geert Uytterhoeven 

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@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 RFC 6/8] ARM: dts: r8a7743: add SYS-DMAC support

[Geert Uytterhoeven]

Hi Sergei,

On Wed, Sep 28, 2016 at 10:09 PM, Sergei Shtylyov
 wrote:
> On 09/19/2016 11:19 AM, Geert Uytterhoeven wrote:
>>> --- renesas.orig/arch/arm/boot/dts/r8a7743.dtsi
>>> +++ renesas/arch/arm/boot/dts/r8a7743.dtsi
>>> @@ -90,6 +90,70 @@
>>> #power-domain-cells = <1>;
>>> };
>>>
>>> +   dmac0: dma-controller@e670 {
>>> +   compatible = "renesas,dmac-r8a7743",
>>
>>
>> To be documented.
>
>The R-Car DMAC binding has "renesas,dmac-" documented.
> I can add the mention of RZ/G and new examples though...

Just adding a line for RZ/G1M should be sufficient. Thanks!

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@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: LVDS Support in R-Car E2(ALT) Board

[Geert Uytterhoeven]

Hi Jithin,

On Thu, Sep 29, 2016 at 6:14 AM, Jithin T Raj  wrote:
> I have successfully applied the patch and build R-car M2 Kernel for
> Koelsch Board..now it support LVDS..Thank you all especially Geert and
> Laurent..now i tried the same source tree(v4.7.5) to build for R-Car

Good to hear it works on Koelsch!

> E2(ALT)Board to make LVDS up..but i am getting the following error
> during making .dtb file
>
> ubuntu@teltvm2468l:~/jithin_new/linux-4.7.5$ make -j4 r8a7794-alt.dtb
>   DTC arch/arm/boot/dts/r8a7794-alt.dtb
> Error: arch/arm/boot/dts/r8a77xx-aa104xd12-panel.dtsi:39.1-16 Label or path 
> lvds_connector not found
> FATAL ERROR: Syntax error parsing input tree
> make[1]: *** [arch/arm/boot/dts/r8a7794-alt.dtb] Error 1
> make: *** [r8a7794-alt.dtb] Error 2
> ubuntu@teltvm2468l:~/jithin_new/linux-4.7.5$
>
> I have included the "#include "r8a77xx-aa104xd12-panel.dtsi" in 
> r8a7794-alt.dts
>
> my source tree is v4.7.5 stable edition

No one has added LVDS support for r8a7794/alt yet.

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@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