[PATCH v2 1/2] bmips: add BCM6358 support

[PATCH v2 1/2] bmips: add BCM6358 support

[Álvaro Fernández Rojas]

BCM6358 has a shared TLB which conflicts with current SMP support, so it must
be disabled for now.
BCM6358 uses >= 0xfffe0000 addresses for internal registers, which need to be
remapped (by using a simplified version of BRCM63xx ioremap.h).

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 v2: Use a different approach for remapping internal registers

 arch/mips/bmips/setup.c                    | 29 +++++++++++++++++------
 arch/mips/include/asm/mach-bmips/ioremap.h | 37 ++++++++++++++++++++++++++++++
 2 files changed, 59 insertions(+), 7 deletions(-)
 create mode 100644 arch/mips/include/asm/mach-bmips/ioremap.h

diff --git a/arch/mips/bmips/setup.c b/arch/mips/bmips/setup.c
index 3553528..f834a86 100644
--- a/arch/mips/bmips/setup.c
+++ b/arch/mips/bmips/setup.c
@@ -18,6 +18,7 @@
 #include <linux/of_fdt.h>
 #include <linux/of_platform.h>
 #include <linux/smp.h>
+#include <linux/types.h>
 #include <asm/addrspace.h>
 #include <asm/bmips.h>
 #include <asm/bootinfo.h>
@@ -35,9 +36,12 @@
 
 static const unsigned long kbase = VMLINUX_LOAD_ADDRESS & 0xfff00000;
 
+phys_addr_t bmips_internal_registers;
+
 struct bmips_quirk {
-	const char		*compatible;
-	void			(*quirk_fn)(void);
+	const char *compatible;
+	void (*quirk_fn)(void);
+	const phys_addr_t regs;
 };
 
 static void kbase_setup(void)
@@ -95,17 +99,27 @@ static void bcm6328_quirks(void)
 		bcm63xx_fixup_cpu1();
 }
 
+static void bcm6358_quirks(void)
+{
+	/*
+	 * BCM6358 needs special handling for its shared TLB, so
+	 * disable SMP for now
+	 */
+	bmips_smp_enabled = 0;
+}
+
 static void bcm6368_quirks(void)
 {
 	bcm63xx_fixup_cpu1();
 }
 
 static const struct bmips_quirk bmips_quirk_list[] = {
-	{ "brcm,bcm3384-viper",		&bcm3384_viper_quirks		},
-	{ "brcm,bcm33843-viper",	&bcm3384_viper_quirks		},
-	{ "brcm,bcm6328",		&bcm6328_quirks			},
-	{ "brcm,bcm6368",		&bcm6368_quirks			},
-	{ "brcm,bcm63168",		&bcm6368_quirks			},
+	{ "brcm,bcm3384-viper", &bcm3384_viper_quirks, 0 },
+	{ "brcm,bcm33843-viper", &bcm3384_viper_quirks, 0 },
+	{ "brcm,bcm6328", &bcm6328_quirks, 0 },
+	{ "brcm,bcm6358", &bcm6358_quirks, 0xfffe0000 },
+	{ "brcm,bcm6368", &bcm6368_quirks, 0 },
+	{ "brcm,bcm63168", &bcm6368_quirks, 0 },
 	{ },
 };
 
@@ -162,6 +176,7 @@ void __init plat_mem_setup(void)
 	for (q = bmips_quirk_list; q->quirk_fn; q++) {
 		if (of_flat_dt_is_compatible(of_get_flat_dt_root(),
 					     q->compatible)) {
+			bmips_internal_registers = q->regs;
 			q->quirk_fn();
 		}
 	}
diff --git a/arch/mips/include/asm/mach-bmips/ioremap.h b/arch/mips/include/asm/mach-bmips/ioremap.h
new file mode 100644
index 0000000..5ffca94
--- /dev/null
+++ b/arch/mips/include/asm/mach-bmips/ioremap.h
@@ -0,0 +1,37 @@
+#ifndef __ASM_MACH_BMIPS_IOREMAP_H
+#define __ASM_MACH_BMIPS_IOREMAP_H
+
+#include <linux/types.h>
+
+extern phys_addr_t bmips_internal_registers;
+
+static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr,
+					     phys_addr_t size)
+{
+	return phys_addr;
+}
+
+static inline int is_bmips_internal_registers(phys_addr_t offset)
+{
+	if (bmips_internal_registers != 0 && offset >= bmips_internal_registers)
+		return 1;
+	else
+		return 0;
+}
+
+static inline void __iomem *plat_ioremap(phys_addr_t offset,
+					 unsigned long size,
+					 unsigned long flags)
+{
+	if (is_bmips_internal_registers(offset))
+		return (void __iomem *) offset;
+
+	return NULL;
+}
+
+static inline int plat_iounmap(const volatile void __iomem *addr)
+{
+	return is_bmips_internal_registers((unsigned long) addr);
+}
+
+#endif /* __ASM_MACH_BMIPS_IOREMAP_H */
-- 
1.9.1

Re: [PATCH v2 1/2] bmips: add BCM6358 support

[Florian Fainelli]

On 21/02/16 03:41, Álvaro Fernández Rojas wrote:
> BCM6358 has a shared TLB which conflicts with current SMP support, so it must
> be disabled for now.
> BCM6358 uses >= 0xfffe0000 addresses for internal registers, which need to be
> remapped (by using a simplified version of BRCM63xx ioremap.h).
> 
> Signed-off-by: Álvaro Fernández Rojas <noltari-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> ---
>  v2: Use a different approach for remapping internal registers
> 
>  arch/mips/bmips/setup.c                    | 29 +++++++++++++++++------
>  arch/mips/include/asm/mach-bmips/ioremap.h | 37 ++++++++++++++++++++++++++++++
>  2 files changed, 59 insertions(+), 7 deletions(-)
>  create mode 100644 arch/mips/include/asm/mach-bmips/ioremap.h
> 
> diff --git a/arch/mips/bmips/setup.c b/arch/mips/bmips/setup.c
> index 3553528..f834a86 100644
> --- a/arch/mips/bmips/setup.c
> +++ b/arch/mips/bmips/setup.c
> @@ -18,6 +18,7 @@
>  #include <linux/of_fdt.h>
>  #include <linux/of_platform.h>
>  #include <linux/smp.h>
> +#include <linux/types.h>
>  #include <asm/addrspace.h>
>  #include <asm/bmips.h>
>  #include <asm/bootinfo.h>
> @@ -35,9 +36,12 @@
>  
>  static const unsigned long kbase = VMLINUX_LOAD_ADDRESS & 0xfff00000;
>  
> +phys_addr_t bmips_internal_registers;
> +
>  struct bmips_quirk {
> -	const char		*compatible;
> -	void			(*quirk_fn)(void);
> +	const char *compatible;
> +	void (*quirk_fn)(void);
> +	const phys_addr_t regs;
>  };

That does not scale very well to having some sort of generic quirk
function here.

>  
>  static void kbase_setup(void)
> @@ -95,17 +99,27 @@ static void bcm6328_quirks(void)
>  		bcm63xx_fixup_cpu1();
>  }
>  
> +static void bcm6358_quirks(void)
> +{
> +	/*
> +	 * BCM6358 needs special handling for its shared TLB, so
> +	 * disable SMP for now
> +	 */
> +	bmips_smp_enabled = 0;
> +}
> +
>  static void bcm6368_quirks(void)
>  {
>  	bcm63xx_fixup_cpu1();
>  }
>  
>  static const struct bmips_quirk bmips_quirk_list[] = {
> -	{ "brcm,bcm3384-viper",		&bcm3384_viper_quirks		},
> -	{ "brcm,bcm33843-viper",	&bcm3384_viper_quirks		},
> -	{ "brcm,bcm6328",		&bcm6328_quirks			},
> -	{ "brcm,bcm6368",		&bcm6368_quirks			},
> -	{ "brcm,bcm63168",		&bcm6368_quirks			},
> +	{ "brcm,bcm3384-viper", &bcm3384_viper_quirks, 0 },
> +	{ "brcm,bcm33843-viper", &bcm3384_viper_quirks, 0 },
> +	{ "brcm,bcm6328", &bcm6328_quirks, 0 },
> +	{ "brcm,bcm6358", &bcm6358_quirks, 0xfffe0000 },
> +	{ "brcm,bcm6368", &bcm6368_quirks, 0 },
> +	{ "brcm,bcm63168", &bcm6368_quirks, 0 },
>  	{ },
>  };
>  
> @@ -162,6 +176,7 @@ void __init plat_mem_setup(void)
>  	for (q = bmips_quirk_list; q->quirk_fn; q++) {
>  		if (of_flat_dt_is_compatible(of_get_flat_dt_root(),
>  					     q->compatible)) {
> +			bmips_internal_registers = q->regs;
>  			q->quirk_fn();
>  		}
>  	}
> diff --git a/arch/mips/include/asm/mach-bmips/ioremap.h b/arch/mips/include/asm/mach-bmips/ioremap.h
> new file mode 100644
> index 0000000..5ffca94
> --- /dev/null
> +++ b/arch/mips/include/asm/mach-bmips/ioremap.h
> @@ -0,0 +1,37 @@
> +#ifndef __ASM_MACH_BMIPS_IOREMAP_H
> +#define __ASM_MACH_BMIPS_IOREMAP_H
> +
> +#include <linux/types.h>
> +
> +extern phys_addr_t bmips_internal_registers;
> +
> +static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr,
> +					     phys_addr_t size)
> +{
> +	return phys_addr;
> +}
> +
> +static inline int is_bmips_internal_registers(phys_addr_t offset)
> +{
> +	if (bmips_internal_registers != 0 && offset >= bmips_internal_registers)
> +		return 1;

Humm, we should probably just use a hardcoded constant here, and just
pick one which works for all SoCs, so the 3368 base address for
instance: 0xfff8_0000 seems like a good candidate, and also works for
other DSL SoCs too.
-- 
Florian
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[PATCH v3 1/2] bmips: add BCM6358 support

[Álvaro Fernández Rojas]

BCM6358 has a shared TLB which conflicts with current SMP support, so it must
be disabled for now.
BCM6358 uses >= 0xfffe0000 addresses for internal registers, which need to be
remapped (by using a simplified version of BRCM63xx ioremap.h).
However, 0xfff80000 is a better address since it also covers BCM3368, leaving
the possibility to add it in the future.

Signed-off-by: Álvaro Fernández Rojas <noltari-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
 v3: Use a hardcoded constant for is_bmips_internal_registers (BCM3368 base
  address)
 v2: Use a different approach for remapping internal registers

 arch/mips/bmips/setup.c                    | 10 +++++++++
 arch/mips/include/asm/mach-bmips/ioremap.h | 33 ++++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)
 create mode 100644 arch/mips/include/asm/mach-bmips/ioremap.h

diff --git a/arch/mips/bmips/setup.c b/arch/mips/bmips/setup.c
index 3553528..38b5bd5 100644
--- a/arch/mips/bmips/setup.c
+++ b/arch/mips/bmips/setup.c
@@ -95,6 +95,15 @@ static void bcm6328_quirks(void)
 		bcm63xx_fixup_cpu1();
 }
 
+static void bcm6358_quirks(void)
+{
+	/*
+	 * BCM6358 needs special handling for its shared TLB, so
+	 * disable SMP for now
+	 */
+	bmips_smp_enabled = 0;
+}
+
 static void bcm6368_quirks(void)
 {
 	bcm63xx_fixup_cpu1();
@@ -104,6 +113,7 @@ static const struct bmips_quirk bmips_quirk_list[] = {
 	{ "brcm,bcm3384-viper",		&bcm3384_viper_quirks		},
 	{ "brcm,bcm33843-viper",	&bcm3384_viper_quirks		},
 	{ "brcm,bcm6328",		&bcm6328_quirks			},
+	{ "brcm,bcm6358",		&bcm6358_quirks			},
 	{ "brcm,bcm6368",		&bcm6368_quirks			},
 	{ "brcm,bcm63168",		&bcm6368_quirks			},
 	{ },
diff --git a/arch/mips/include/asm/mach-bmips/ioremap.h b/arch/mips/include/asm/mach-bmips/ioremap.h
new file mode 100644
index 0000000..29c7a7b
--- /dev/null
+++ b/arch/mips/include/asm/mach-bmips/ioremap.h
@@ -0,0 +1,33 @@
+#ifndef __ASM_MACH_BMIPS_IOREMAP_H
+#define __ASM_MACH_BMIPS_IOREMAP_H
+
+#include <linux/types.h>
+
+static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
+{
+	return phys_addr;
+}
+
+static inline int is_bmips_internal_registers(phys_addr_t offset)
+{
+	if (offset >= 0xfff80000)
+		return 1;
+
+	return 0;
+}
+
+static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
+					 unsigned long flags)
+{
+	if (is_bmips_internal_registers(offset))
+		return (void __iomem *)offset;
+
+	return NULL;
+}
+
+static inline int plat_iounmap(const volatile void __iomem *addr)
+{
+	return is_bmips_internal_registers((unsigned long)addr);
+}
+
+#endif /* __ASM_MACH_BMIPS_IOREMAP_H */
-- 
2.1.4

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[PATCH v3 2/2] bmips: add device tree example for BCM6358

[Álvaro Fernández Rojas]

This adds a device tree example for SFR Neufbox4 (Sercomm version), which
also serves as a real example for brcm,bcm6358-leds.

Signed-off-by: Álvaro Fernández Rojas <noltari-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
 v3: Device tree fixes
  - Use interrupt-controller instead of periph_intc.
  - Use led@# instead of naming the LEDs.
 v2: Remove led0 alias and use stdout-path only

 .../devicetree/bindings/mips/brcm/soc.txt          |   2 +-
 arch/mips/bmips/Kconfig                            |   4 +
 arch/mips/boot/dts/brcm/Makefile                   |   2 +
 arch/mips/boot/dts/brcm/bcm6358.dtsi               | 111 +++++++++++++++++++++
 arch/mips/boot/dts/brcm/bcm96358nb4ser.dts         |  46 +++++++++
 5 files changed, 164 insertions(+), 1 deletion(-)
 create mode 100644 arch/mips/boot/dts/brcm/bcm6358.dtsi
 create mode 100644 arch/mips/boot/dts/brcm/bcm96358nb4ser.dts

diff --git a/Documentation/devicetree/bindings/mips/brcm/soc.txt b/Documentation/devicetree/bindings/mips/brcm/soc.txt
index 7bab90c..e58a4f6 100644
--- a/Documentation/devicetree/bindings/mips/brcm/soc.txt
+++ b/Documentation/devicetree/bindings/mips/brcm/soc.txt
@@ -4,7 +4,7 @@ Required properties:
 
 - compatible: "brcm,bcm3384", "brcm,bcm33843"
               "brcm,bcm3384-viper", "brcm,bcm33843-viper"
-              "brcm,bcm6328", "brcm,bcm6368",
+              "brcm,bcm6328", "brcm,bcm6358", "brcm,bcm6368",
               "brcm,bcm7125", "brcm,bcm7346", "brcm,bcm7358", "brcm,bcm7360",
               "brcm,bcm7362", "brcm,bcm7420", "brcm,bcm7425"
 
diff --git a/arch/mips/bmips/Kconfig b/arch/mips/bmips/Kconfig
index e2c4fd6..264328d 100644
--- a/arch/mips/bmips/Kconfig
+++ b/arch/mips/bmips/Kconfig
@@ -21,6 +21,10 @@ config DT_BCM93384WVG_VIPER
 	bool "BCM93384WVG Viper CPU (EXPERIMENTAL)"
 	select BUILTIN_DTB
 
+config DT_BCM96358NB4SER
+	bool "BCM96358NB4SER"
+	select BUILTIN_DTB
+
 config DT_BCM96368MVWG
 	bool "BCM96368MVWG"
 	select BUILTIN_DTB
diff --git a/arch/mips/boot/dts/brcm/Makefile b/arch/mips/boot/dts/brcm/Makefile
index eabeb60..fda9d38 100644
--- a/arch/mips/boot/dts/brcm/Makefile
+++ b/arch/mips/boot/dts/brcm/Makefile
@@ -1,5 +1,6 @@
 dtb-$(CONFIG_DT_BCM93384WVG)		+= bcm93384wvg.dtb
 dtb-$(CONFIG_DT_BCM93384WVG_VIPER)	+= bcm93384wvg_viper.dtb
+dtb-$(CONFIG_DT_BCM96358NB4SER)		+= bcm96358nb4ser.dtb
 dtb-$(CONFIG_DT_BCM96368MVWG)		+= bcm96368mvwg.dtb
 dtb-$(CONFIG_DT_BCM9EJTAGPRB)		+= bcm9ejtagprb.dtb
 dtb-$(CONFIG_DT_BCM97125CBMB)		+= bcm97125cbmb.dtb
@@ -14,6 +15,7 @@ dtb-$(CONFIG_DT_BCM97435SVMB)		+= bcm97435svmb.dtb
 dtb-$(CONFIG_DT_NONE)			+= \
 						bcm93384wvg.dtb		\
 						bcm93384wvg_viper.dtb	\
+						bcm96358nb4ser.dtb	\
 						bcm96368mvwg.dtb	\
 						bcm9ejtagprb.dtb	\
 						bcm97125cbmb.dtb	\
diff --git a/arch/mips/boot/dts/brcm/bcm6358.dtsi b/arch/mips/boot/dts/brcm/bcm6358.dtsi
new file mode 100644
index 0000000..5ac1ef0
--- /dev/null
+++ b/arch/mips/boot/dts/brcm/bcm6358.dtsi
@@ -0,0 +1,111 @@
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	compatible = "brcm,bcm6358";
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		mips-hpt-frequency = <150000000>;
+
+		cpu@0 {
+			compatible = "brcm,bmips4350";
+			device_type = "cpu";
+			reg = <0>;
+		};
+
+		cpu@1 {
+			compatible = "brcm,bmips4350";
+			device_type = "cpu";
+			reg = <1>;
+		};
+	};
+
+	clocks {
+		periph_clk: periph_clk {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <50000000>;
+		};
+	};
+
+	aliases {
+		uart0 = &uart0;
+		uart1 = &uart1;
+	};
+
+	cpu_intc: cpu_intc {
+		#address-cells = <0>;
+		compatible = "mti,cpu-interrupt-controller";
+
+		interrupt-controller;
+		#interrupt-cells = <1>;
+	};
+
+	ubus {
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		compatible = "simple-bus";
+		ranges;
+
+		periph_cntl: syscon@fffe0000 {
+			compatible = "syscon";
+			reg = <0xfffe0000 0xc>;
+			little-endian;
+		};
+
+		reboot: syscon-reboot@fffe0008 {
+			compatible = "syscon-reboot";
+			regmap = <&periph_cntl>;
+			offset = <0x8>;
+			mask = <0x1>;
+		};
+
+		periph_intc: interrupt-controller@fffe000c {
+			compatible = "brcm,bcm3380-l2-intc";
+			reg = <0xfffe0010 0x4 0xfffe000c 0x4>,
+			      <0xfffe003c 0x4 0xfffe0038 0x4>;
+
+			interrupt-controller;
+			#interrupt-cells = <1>;
+
+			interrupt-parent = <&cpu_intc>;
+			interrupts = <2>;
+		};
+
+		leds0: led-controller@fffe00d0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "brcm,bcm6358-leds";
+			reg = <0xfffe00d0 0x8>;
+
+			status = "disabled";
+		};
+
+		uart0: serial@fffe0100 {
+			compatible = "brcm,bcm6345-uart";
+			reg = <0xfffe0100 0x18>;
+
+			interrupt-parent = <&periph_intc>;
+			interrupts = <2>;
+
+			clocks = <&periph_clk>;
+
+			status = "disabled";
+		};
+
+		uart1: serial@fffe0120 {
+			compatible = "brcm,bcm6345-uart";
+			reg = <0xfffe0120 0x18>;
+
+			interrupt-parent = <&periph_intc>;
+			interrupts = <3>;
+
+			clocks = <&periph_clk>;
+
+			status = "disabled";
+		};
+	};
+};
diff --git a/arch/mips/boot/dts/brcm/bcm96358nb4ser.dts b/arch/mips/boot/dts/brcm/bcm96358nb4ser.dts
new file mode 100644
index 0000000..f412117
--- /dev/null
+++ b/arch/mips/boot/dts/brcm/bcm96358nb4ser.dts
@@ -0,0 +1,46 @@
+/dts-v1/;
+
+/include/ "bcm6358.dtsi"
+
+/ {
+	compatible = "sfr,nb4-ser", "brcm,bcm6358";
+	model = "SFR Neufbox 4 (Sercomm)";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x00000000 0x02000000>;
+	};
+
+	chosen {
+		stdout-path = &uart0;
+	};
+};
+
+&leds0 {
+	status = "ok";
+
+	led@0 {
+		reg = <0>;
+		active-low;
+		label = "nb4-ser:white:alarm";
+	};
+	led@2 {
+		reg = <2>;
+		active-low;
+		label = "nb4-ser:white:tv";
+	};
+	led@3 {
+		reg = <3>;
+		active-low;
+		label = "nb4-ser:white:tel";
+	};
+	led@4 {
+		reg = <4>;
+		active-low;
+		label = "nb4-ser:white:adsl";
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
-- 
2.1.4

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Re: [PATCH v3 2/2] bmips: add device tree example for BCM6358

[Rob Herring]

On Sun, Apr 03, 2016 at 11:56:16AM +0200, Álvaro Fernández Rojas wrote:
> This adds a device tree example for SFR Neufbox4 (Sercomm version), which
> also serves as a real example for brcm,bcm6358-leds.
> 
> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
> ---
>  v3: Device tree fixes
>   - Use interrupt-controller instead of periph_intc.
>   - Use led@# instead of naming the LEDs.
>  v2: Remove led0 alias and use stdout-path only
> 
>  .../devicetree/bindings/mips/brcm/soc.txt          |   2 +-
>  arch/mips/bmips/Kconfig                            |   4 +
>  arch/mips/boot/dts/brcm/Makefile                   |   2 +
>  arch/mips/boot/dts/brcm/bcm6358.dtsi               | 111 +++++++++++++++++++++
>  arch/mips/boot/dts/brcm/bcm96358nb4ser.dts         |  46 +++++++++
>  5 files changed, 164 insertions(+), 1 deletion(-)
>  create mode 100644 arch/mips/boot/dts/brcm/bcm6358.dtsi
>  create mode 100644 arch/mips/boot/dts/brcm/bcm96358nb4ser.dts

Acked-by: Rob Herring <robh@kernel.org>

[PATCH v4 1/2] bmips: add BCM6358 support

[Álvaro Fernández Rojas]

BCM6358 has a shared TLB which conflicts with current SMP support, so it must
be disabled for now.
BCM6358 uses >= 0xfffe0000 addresses for internal registers, which need to be
remapped (by using a simplified version of BRCM63xx ioremap.h).
However, 0xfff80000 is a better address, since it also covers BCM3368, leaving
the possibility to add it in the future.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 v4: no changes, resend
 v3: Use a hardcoded constant for is_bmips_internal_registers (BCM3368 base
  address)
 v2: Use a different approach for remapping internal registers

 arch/mips/bmips/setup.c                    | 10 +++++++++
 arch/mips/include/asm/mach-bmips/ioremap.h | 33 ++++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)
 create mode 100644 arch/mips/include/asm/mach-bmips/ioremap.h

diff --git a/arch/mips/bmips/setup.c b/arch/mips/bmips/setup.c
index 3553528..38b5bd5 100644
--- a/arch/mips/bmips/setup.c
+++ b/arch/mips/bmips/setup.c
@@ -95,6 +95,15 @@ static void bcm6328_quirks(void)
 		bcm63xx_fixup_cpu1();
 }
 
+static void bcm6358_quirks(void)
+{
+	/*
+	 * BCM6358 needs special handling for its shared TLB, so
+	 * disable SMP for now
+	 */
+	bmips_smp_enabled = 0;
+}
+
 static void bcm6368_quirks(void)
 {
 	bcm63xx_fixup_cpu1();
@@ -104,6 +113,7 @@ static const struct bmips_quirk bmips_quirk_list[] = {
 	{ "brcm,bcm3384-viper",		&bcm3384_viper_quirks		},
 	{ "brcm,bcm33843-viper",	&bcm3384_viper_quirks		},
 	{ "brcm,bcm6328",		&bcm6328_quirks			},
+	{ "brcm,bcm6358",		&bcm6358_quirks			},
 	{ "brcm,bcm6368",		&bcm6368_quirks			},
 	{ "brcm,bcm63168",		&bcm6368_quirks			},
 	{ },
diff --git a/arch/mips/include/asm/mach-bmips/ioremap.h b/arch/mips/include/asm/mach-bmips/ioremap.h
new file mode 100644
index 0000000..29c7a7b
--- /dev/null
+++ b/arch/mips/include/asm/mach-bmips/ioremap.h
@@ -0,0 +1,33 @@
+#ifndef __ASM_MACH_BMIPS_IOREMAP_H
+#define __ASM_MACH_BMIPS_IOREMAP_H
+
+#include <linux/types.h>
+
+static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
+{
+	return phys_addr;
+}
+
+static inline int is_bmips_internal_registers(phys_addr_t offset)
+{
+	if (offset >= 0xfff80000)
+		return 1;
+
+	return 0;
+}
+
+static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
+					 unsigned long flags)
+{
+	if (is_bmips_internal_registers(offset))
+		return (void __iomem *)offset;
+
+	return NULL;
+}
+
+static inline int plat_iounmap(const volatile void __iomem *addr)
+{
+	return is_bmips_internal_registers((unsigned long)addr);
+}
+
+#endif /* __ASM_MACH_BMIPS_IOREMAP_H */
-- 
2.1.4

[PATCH v4 2/2] bmips: add device tree example for BCM6358

[Álvaro Fernández Rojas]

This adds a device tree example for SFR Neufbox4 (Sercomm version), which
also serves as a real example for brcm,bcm6358-leds.

Signed-off-by: Álvaro Fernández Rojas <noltari-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
 v4: Device tree improvements:
  - Switch to native-endian for syscon.
  - Switch to bcm6345-l1-intc interrupt controller.
  - Add ehci and ohci nodes.
 v3: Device tree fixes
  - Use interrupt-controller instead of periph_intc.
  - Use led@# instead of naming the LEDs.
 v2: Remove led0 alias and use stdout-path only

 .../devicetree/bindings/mips/brcm/soc.txt          |   2 +-
 arch/mips/bmips/Kconfig                            |   4 +
 arch/mips/boot/dts/brcm/Makefile                   |   2 +
 arch/mips/boot/dts/brcm/bcm6358.dtsi               | 130 +++++++++++++++++++++
 arch/mips/boot/dts/brcm/bcm96358nb4ser.dts         |  46 ++++++++
 5 files changed, 183 insertions(+), 1 deletion(-)
 create mode 100644 arch/mips/boot/dts/brcm/bcm6358.dtsi
 create mode 100644 arch/mips/boot/dts/brcm/bcm96358nb4ser.dts

diff --git a/Documentation/devicetree/bindings/mips/brcm/soc.txt b/Documentation/devicetree/bindings/mips/brcm/soc.txt
index 7bab90c..e58a4f6 100644
--- a/Documentation/devicetree/bindings/mips/brcm/soc.txt
+++ b/Documentation/devicetree/bindings/mips/brcm/soc.txt
@@ -4,7 +4,7 @@ Required properties:
 
 - compatible: "brcm,bcm3384", "brcm,bcm33843"
               "brcm,bcm3384-viper", "brcm,bcm33843-viper"
-              "brcm,bcm6328", "brcm,bcm6368",
+              "brcm,bcm6328", "brcm,bcm6358", "brcm,bcm6368",
               "brcm,bcm7125", "brcm,bcm7346", "brcm,bcm7358", "brcm,bcm7360",
               "brcm,bcm7362", "brcm,bcm7420", "brcm,bcm7425"
 
diff --git a/arch/mips/bmips/Kconfig b/arch/mips/bmips/Kconfig
index e2c4fd6..264328d 100644
--- a/arch/mips/bmips/Kconfig
+++ b/arch/mips/bmips/Kconfig
@@ -21,6 +21,10 @@ config DT_BCM93384WVG_VIPER
 	bool "BCM93384WVG Viper CPU (EXPERIMENTAL)"
 	select BUILTIN_DTB
 
+config DT_BCM96358NB4SER
+	bool "BCM96358NB4SER"
+	select BUILTIN_DTB
+
 config DT_BCM96368MVWG
 	bool "BCM96368MVWG"
 	select BUILTIN_DTB
diff --git a/arch/mips/boot/dts/brcm/Makefile b/arch/mips/boot/dts/brcm/Makefile
index eabeb60..fda9d38 100644
--- a/arch/mips/boot/dts/brcm/Makefile
+++ b/arch/mips/boot/dts/brcm/Makefile
@@ -1,5 +1,6 @@
 dtb-$(CONFIG_DT_BCM93384WVG)		+= bcm93384wvg.dtb
 dtb-$(CONFIG_DT_BCM93384WVG_VIPER)	+= bcm93384wvg_viper.dtb
+dtb-$(CONFIG_DT_BCM96358NB4SER)		+= bcm96358nb4ser.dtb
 dtb-$(CONFIG_DT_BCM96368MVWG)		+= bcm96368mvwg.dtb
 dtb-$(CONFIG_DT_BCM9EJTAGPRB)		+= bcm9ejtagprb.dtb
 dtb-$(CONFIG_DT_BCM97125CBMB)		+= bcm97125cbmb.dtb
@@ -14,6 +15,7 @@ dtb-$(CONFIG_DT_BCM97435SVMB)		+= bcm97435svmb.dtb
 dtb-$(CONFIG_DT_NONE)			+= \
 						bcm93384wvg.dtb		\
 						bcm93384wvg_viper.dtb	\
+						bcm96358nb4ser.dtb	\
 						bcm96368mvwg.dtb	\
 						bcm9ejtagprb.dtb	\
 						bcm97125cbmb.dtb	\
diff --git a/arch/mips/boot/dts/brcm/bcm6358.dtsi b/arch/mips/boot/dts/brcm/bcm6358.dtsi
new file mode 100644
index 0000000..5dc8432
--- /dev/null
+++ b/arch/mips/boot/dts/brcm/bcm6358.dtsi
@@ -0,0 +1,130 @@
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	compatible = "brcm,bcm6358";
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		mips-hpt-frequency = <150000000>;
+
+		cpu@0 {
+			compatible = "brcm,bmips4350";
+			device_type = "cpu";
+			reg = <0>;
+		};
+
+		cpu@1 {
+			compatible = "brcm,bmips4350";
+			device_type = "cpu";
+			reg = <1>;
+		};
+	};
+
+	clocks {
+		periph_clk: periph_clk {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <50000000>;
+		};
+	};
+
+	aliases {
+		uart0 = &uart0;
+		uart1 = &uart1;
+	};
+
+	cpu_intc: cpu_intc {
+		#address-cells = <0>;
+		compatible = "mti,cpu-interrupt-controller";
+
+		interrupt-controller;
+		#interrupt-cells = <1>;
+	};
+
+	ubus {
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		compatible = "simple-bus";
+		ranges;
+
+		periph_cntl: syscon@fffe0000 {
+			compatible = "syscon";
+			reg = <0xfffe0000 0xc>;
+			native-endian;
+		};
+
+		reboot: syscon-reboot@fffe0008 {
+			compatible = "syscon-reboot";
+			regmap = <&periph_cntl>;
+			offset = <0x8>;
+			mask = <0x1>;
+		};
+
+		periph_intc: interrupt-controller@fffe000c {
+			compatible = "brcm,bcm6345-l1-intc";
+			reg = <0xfffe000c 0x8>,
+			      <0xfffe0038 0x8>;
+
+			interrupt-controller;
+			#interrupt-cells = <1>;
+
+			interrupt-parent = <&cpu_intc>;
+			interrupts = <2>, <3>;
+		};
+
+		leds0: led-controller@fffe00d0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "brcm,bcm6358-leds";
+			reg = <0xfffe00d0 0x8>;
+
+			status = "disabled";
+		};
+
+		uart0: serial@fffe0100 {
+			compatible = "brcm,bcm6345-uart";
+			reg = <0xfffe0100 0x18>;
+
+			interrupt-parent = <&periph_intc>;
+			interrupts = <2>;
+
+			clocks = <&periph_clk>;
+
+			status = "disabled";
+		};
+
+		uart1: serial@fffe0120 {
+			compatible = "brcm,bcm6345-uart";
+			reg = <0xfffe0120 0x18>;
+
+			interrupt-parent = <&periph_intc>;
+			interrupts = <3>;
+
+			clocks = <&periph_clk>;
+
+			status = "disabled";
+		};
+
+		ehci0: usb@fffe1300 {
+			compatible = "brcm,bcm6358-ehci", "generic-ehci";
+			reg = <0xfffe1300 0x100>;
+			big-endian;
+			interrupt-parent = <&periph_intc>;
+			interrupts = <10>;
+			status = "disabled";
+		};
+
+		ohci0: usb@fffe1400 {
+			compatible = "brcm,bcm6358-ohci", "generic-ohci";
+			reg = <0xfffe1400 0x100>;
+			big-endian;
+			no-big-frame-no;
+			interrupt-parent = <&periph_intc>;
+			interrupts = <5>;
+			status = "disabled";
+		};
+	};
+};
diff --git a/arch/mips/boot/dts/brcm/bcm96358nb4ser.dts b/arch/mips/boot/dts/brcm/bcm96358nb4ser.dts
new file mode 100644
index 0000000..f412117
--- /dev/null
+++ b/arch/mips/boot/dts/brcm/bcm96358nb4ser.dts
@@ -0,0 +1,46 @@
+/dts-v1/;
+
+/include/ "bcm6358.dtsi"
+
+/ {
+	compatible = "sfr,nb4-ser", "brcm,bcm6358";
+	model = "SFR Neufbox 4 (Sercomm)";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x00000000 0x02000000>;
+	};
+
+	chosen {
+		stdout-path = &uart0;
+	};
+};
+
+&leds0 {
+	status = "ok";
+
+	led@0 {
+		reg = <0>;
+		active-low;
+		label = "nb4-ser:white:alarm";
+	};
+	led@2 {
+		reg = <2>;
+		active-low;
+		label = "nb4-ser:white:tv";
+	};
+	led@3 {
+		reg = <3>;
+		active-low;
+		label = "nb4-ser:white:tel";
+	};
+	led@4 {
+		reg = <4>;
+		active-low;
+		label = "nb4-ser:white:adsl";
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
-- 
2.1.4

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Re: [PATCH v4 2/2] bmips: add device tree example for BCM6358

[Rob Herring]

On Mon, Apr 04, 2016 at 10:09:13AM +0200, Álvaro Fernández Rojas wrote:
> This adds a device tree example for SFR Neufbox4 (Sercomm version), which
> also serves as a real example for brcm,bcm6358-leds.
> 
> Signed-off-by: Álvaro Fernández Rojas <noltari-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> ---
>  v4: Device tree improvements:
>   - Switch to native-endian for syscon.
>   - Switch to bcm6345-l1-intc interrupt controller.
>   - Add ehci and ohci nodes.
>  v3: Device tree fixes
>   - Use interrupt-controller instead of periph_intc.
>   - Use led@# instead of naming the LEDs.
>  v2: Remove led0 alias and use stdout-path only
> 
>  .../devicetree/bindings/mips/brcm/soc.txt          |   2 +-
>  arch/mips/bmips/Kconfig                            |   4 +
>  arch/mips/boot/dts/brcm/Makefile                   |   2 +
>  arch/mips/boot/dts/brcm/bcm6358.dtsi               | 130 +++++++++++++++++++++
>  arch/mips/boot/dts/brcm/bcm96358nb4ser.dts         |  46 ++++++++
>  5 files changed, 183 insertions(+), 1 deletion(-)
>  create mode 100644 arch/mips/boot/dts/brcm/bcm6358.dtsi
>  create mode 100644 arch/mips/boot/dts/brcm/bcm96358nb4ser.dts
> 
> diff --git a/Documentation/devicetree/bindings/mips/brcm/soc.txt b/Documentation/devicetree/bindings/mips/brcm/soc.txt
> index 7bab90c..e58a4f6 100644
> --- a/Documentation/devicetree/bindings/mips/brcm/soc.txt
> +++ b/Documentation/devicetree/bindings/mips/brcm/soc.txt
> @@ -4,7 +4,7 @@ Required properties:
>  
>  - compatible: "brcm,bcm3384", "brcm,bcm33843"
>                "brcm,bcm3384-viper", "brcm,bcm33843-viper"
> -              "brcm,bcm6328", "brcm,bcm6368",
> +              "brcm,bcm6328", "brcm,bcm6358", "brcm,bcm6368",
>                "brcm,bcm7125", "brcm,bcm7346", "brcm,bcm7358", "brcm,bcm7360",
>                "brcm,bcm7362", "brcm,bcm7420", "brcm,bcm7425"
>  
> diff --git a/arch/mips/bmips/Kconfig b/arch/mips/bmips/Kconfig
> index e2c4fd6..264328d 100644
> --- a/arch/mips/bmips/Kconfig
> +++ b/arch/mips/bmips/Kconfig
> @@ -21,6 +21,10 @@ config DT_BCM93384WVG_VIPER
>  	bool "BCM93384WVG Viper CPU (EXPERIMENTAL)"
>  	select BUILTIN_DTB
>  
> +config DT_BCM96358NB4SER
> +	bool "BCM96358NB4SER"
> +	select BUILTIN_DTB
> +
>  config DT_BCM96368MVWG
>  	bool "BCM96368MVWG"
>  	select BUILTIN_DTB
> diff --git a/arch/mips/boot/dts/brcm/Makefile b/arch/mips/boot/dts/brcm/Makefile
> index eabeb60..fda9d38 100644
> --- a/arch/mips/boot/dts/brcm/Makefile
> +++ b/arch/mips/boot/dts/brcm/Makefile
> @@ -1,5 +1,6 @@
>  dtb-$(CONFIG_DT_BCM93384WVG)		+= bcm93384wvg.dtb
>  dtb-$(CONFIG_DT_BCM93384WVG_VIPER)	+= bcm93384wvg_viper.dtb
> +dtb-$(CONFIG_DT_BCM96358NB4SER)		+= bcm96358nb4ser.dtb
>  dtb-$(CONFIG_DT_BCM96368MVWG)		+= bcm96368mvwg.dtb
>  dtb-$(CONFIG_DT_BCM9EJTAGPRB)		+= bcm9ejtagprb.dtb
>  dtb-$(CONFIG_DT_BCM97125CBMB)		+= bcm97125cbmb.dtb
> @@ -14,6 +15,7 @@ dtb-$(CONFIG_DT_BCM97435SVMB)		+= bcm97435svmb.dtb
>  dtb-$(CONFIG_DT_NONE)			+= \
>  						bcm93384wvg.dtb		\
>  						bcm93384wvg_viper.dtb	\
> +						bcm96358nb4ser.dtb	\
>  						bcm96368mvwg.dtb	\
>  						bcm9ejtagprb.dtb	\
>  						bcm97125cbmb.dtb	\
> diff --git a/arch/mips/boot/dts/brcm/bcm6358.dtsi b/arch/mips/boot/dts/brcm/bcm6358.dtsi
> new file mode 100644
> index 0000000..5dc8432
> --- /dev/null
> +++ b/arch/mips/boot/dts/brcm/bcm6358.dtsi
> @@ -0,0 +1,130 @@
> +/ {
> +	#address-cells = <1>;
> +	#size-cells = <1>;
> +	compatible = "brcm,bcm6358";
> +
> +	cpus {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		mips-hpt-frequency = <150000000>;

I guess this is already defined for MIPS, but there is a generic timer 
freq property defined in ePAPR.

> +
> +		cpu@0 {
> +			compatible = "brcm,bmips4350";
> +			device_type = "cpu";
> +			reg = <0>;
> +		};
> +
> +		cpu@1 {
> +			compatible = "brcm,bmips4350";
> +			device_type = "cpu";
> +			reg = <1>;
> +		};
> +	};
> +
> +	clocks {
> +		periph_clk: periph_clk {

No underscores in node names.

> +			compatible = "fixed-clock";
> +			#clock-cells = <0>;
> +			clock-frequency = <50000000>;
> +		};
> +	};
> +
> +	aliases {
> +		uart0 = &uart0;
> +		uart1 = &uart1;

Alias names should be serialN.

> +	};
> +
> +	cpu_intc: cpu_intc {

This should also be "interrupt-controller".

> +		#address-cells = <0>;
> +		compatible = "mti,cpu-interrupt-controller";
> +
> +		interrupt-controller;
> +		#interrupt-cells = <1>;
> +	};
> +
> +	ubus {
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +
> +		compatible = "simple-bus";
> +		ranges;

Would be preferred to limit this to 0xfffe0000 (or appropriate range) if 
in fact all peripherals fall within this range.

> +
> +		periph_cntl: syscon@fffe0000 {
> +			compatible = "syscon";
> +			reg = <0xfffe0000 0xc>;
> +			native-endian;
> +		};
> +
> +		reboot: syscon-reboot@fffe0008 {
> +			compatible = "syscon-reboot";
> +			regmap = <&periph_cntl>;
> +			offset = <0x8>;
> +			mask = <0x1>;
> +		};
> +
> +		periph_intc: interrupt-controller@fffe000c {
> +			compatible = "brcm,bcm6345-l1-intc";
> +			reg = <0xfffe000c 0x8>,
> +			      <0xfffe0038 0x8>;
> +
> +			interrupt-controller;
> +			#interrupt-cells = <1>;
> +
> +			interrupt-parent = <&cpu_intc>;
> +			interrupts = <2>, <3>;
> +		};
> +
> +		leds0: led-controller@fffe00d0 {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			compatible = "brcm,bcm6358-leds";
> +			reg = <0xfffe00d0 0x8>;
> +
> +			status = "disabled";
> +		};
> +
> +		uart0: serial@fffe0100 {
> +			compatible = "brcm,bcm6345-uart";
> +			reg = <0xfffe0100 0x18>;
> +
> +			interrupt-parent = <&periph_intc>;
> +			interrupts = <2>;
> +
> +			clocks = <&periph_clk>;
> +
> +			status = "disabled";
> +		};
> +
> +		uart1: serial@fffe0120 {
> +			compatible = "brcm,bcm6345-uart";
> +			reg = <0xfffe0120 0x18>;
> +
> +			interrupt-parent = <&periph_intc>;
> +			interrupts = <3>;
> +
> +			clocks = <&periph_clk>;
> +
> +			status = "disabled";
> +		};
> +
> +		ehci0: usb@fffe1300 {

Why the numbering? Is there more than 1 EHCI?

> +			compatible = "brcm,bcm6358-ehci", "generic-ehci";

Is this documented?

> +			reg = <0xfffe1300 0x100>;
> +			big-endian;
> +			interrupt-parent = <&periph_intc>;
> +			interrupts = <10>;
> +			status = "disabled";
> +		};
> +
> +		ohci0: usb@fffe1400 {

More than 1 OHCI?

> +			compatible = "brcm,bcm6358-ohci", "generic-ohci";

Is this documented?

> +			reg = <0xfffe1400 0x100>;
> +			big-endian;
> +			no-big-frame-no;
> +			interrupt-parent = <&periph_intc>;
> +			interrupts = <5>;
> +			status = "disabled";
> +		};
> +	};
> +};
> diff --git a/arch/mips/boot/dts/brcm/bcm96358nb4ser.dts b/arch/mips/boot/dts/brcm/bcm96358nb4ser.dts
> new file mode 100644
> index 0000000..f412117
> --- /dev/null
> +++ b/arch/mips/boot/dts/brcm/bcm96358nb4ser.dts
> @@ -0,0 +1,46 @@
> +/dts-v1/;
> +
> +/include/ "bcm6358.dtsi"
> +
> +/ {
> +	compatible = "sfr,nb4-ser", "brcm,bcm6358";

Is sfr,nb4-ser documented?

> +	model = "SFR Neufbox 4 (Sercomm)";
> +
> +	memory@0 {
> +		device_type = "memory";
> +		reg = <0x00000000 0x02000000>;
> +	};
> +
> +	chosen {
> +		stdout-path = &uart0;
> +	};
> +};
> +
> +&leds0 {
> +	status = "ok";
> +
> +	led@0 {
> +		reg = <0>;
> +		active-low;
> +		label = "nb4-ser:white:alarm";
> +	};
> +	led@2 {
> +		reg = <2>;
> +		active-low;
> +		label = "nb4-ser:white:tv";
> +	};
> +	led@3 {
> +		reg = <3>;
> +		active-low;
> +		label = "nb4-ser:white:tel";
> +	};
> +	led@4 {
> +		reg = <4>;
> +		active-low;
> +		label = "nb4-ser:white:adsl";
> +	};
> +};
> +
> +&uart0 {
> +	status = "okay";
> +};
> -- 
> 2.1.4
> 
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[PATCH 1/2] bmips: add BCM6358 support

[Álvaro Fernández Rojas]

BCM6358 has a shared TLB which conflicts with current SMP support, so it must
be disabled for now.
BCM6358 uses >= 0xfffe0000 addresses for internal registers, which need to be
remapped (by using a simplified version of BRCM63xx ioremap.h).
However, 0xfff80000 is a better address, since it also covers BCM3368, leaving
the possibility to add it in the future.

Signed-off-by: Álvaro Fernández Rojas <noltari-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
 v5: no changes, resend
 v4: no changes, resend
 v3: Use a hardcoded constant for is_bmips_internal_registers (BCM3368 base
  address)
 v2: Use a different approach for remapping internal registers

 arch/mips/bmips/setup.c                    | 10 +++++++++
 arch/mips/include/asm/mach-bmips/ioremap.h | 33 ++++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)
 create mode 100644 arch/mips/include/asm/mach-bmips/ioremap.h

diff --git a/arch/mips/bmips/setup.c b/arch/mips/bmips/setup.c
index 3553528..38b5bd5 100644
--- a/arch/mips/bmips/setup.c
+++ b/arch/mips/bmips/setup.c
@@ -95,6 +95,15 @@ static void bcm6328_quirks(void)
 		bcm63xx_fixup_cpu1();
 }
 
+static void bcm6358_quirks(void)
+{
+	/*
+	 * BCM6358 needs special handling for its shared TLB, so
+	 * disable SMP for now
+	 */
+	bmips_smp_enabled = 0;
+}
+
 static void bcm6368_quirks(void)
 {
 	bcm63xx_fixup_cpu1();
@@ -104,6 +113,7 @@ static const struct bmips_quirk bmips_quirk_list[] = {
 	{ "brcm,bcm3384-viper",		&bcm3384_viper_quirks		},
 	{ "brcm,bcm33843-viper",	&bcm3384_viper_quirks		},
 	{ "brcm,bcm6328",		&bcm6328_quirks			},
+	{ "brcm,bcm6358",		&bcm6358_quirks			},
 	{ "brcm,bcm6368",		&bcm6368_quirks			},
 	{ "brcm,bcm63168",		&bcm6368_quirks			},
 	{ },
diff --git a/arch/mips/include/asm/mach-bmips/ioremap.h b/arch/mips/include/asm/mach-bmips/ioremap.h
new file mode 100644
index 0000000..29c7a7b
--- /dev/null
+++ b/arch/mips/include/asm/mach-bmips/ioremap.h
@@ -0,0 +1,33 @@
+#ifndef __ASM_MACH_BMIPS_IOREMAP_H
+#define __ASM_MACH_BMIPS_IOREMAP_H
+
+#include <linux/types.h>
+
+static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
+{
+	return phys_addr;
+}
+
+static inline int is_bmips_internal_registers(phys_addr_t offset)
+{
+	if (offset >= 0xfff80000)
+		return 1;
+
+	return 0;
+}
+
+static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
+					 unsigned long flags)
+{
+	if (is_bmips_internal_registers(offset))
+		return (void __iomem *)offset;
+
+	return NULL;
+}
+
+static inline int plat_iounmap(const volatile void __iomem *addr)
+{
+	return is_bmips_internal_registers((unsigned long)addr);
+}
+
+#endif /* __ASM_MACH_BMIPS_IOREMAP_H */
-- 
2.1.4

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[PATCH 2/2] bmips: add device tree example for BCM6358

[Álvaro Fernández Rojas]

This adds a device tree example for SFR Neufbox4 (Sercomm version), which
also serves as a real example for brcm,bcm6358-leds.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 v5: more device tree improvements
  - There is just ohci/ehci node.
  - Avoid using underscores in node names.
  - Use interrupt-controller for cpu_intc.
  - Rename uart aliases to serial.
 v4: Device tree improvements:
  - Switch to native-endian for syscon.
  - Switch to bcm6345-l1-intc interrupt controller.
  - Add ehci and ohci nodes.
 v3: Device tree fixes
  - Use interrupt-controller instead of periph_intc.
  - Use led@# instead of naming the LEDs.
 v2: Remove led0 alias and use stdout-path only

 .../devicetree/bindings/mips/brcm/soc.txt          |   2 +-
 arch/mips/bmips/Kconfig                            |   4 +
 arch/mips/boot/dts/brcm/Makefile                   |   2 +
 arch/mips/boot/dts/brcm/bcm6358.dtsi               | 130 +++++++++++++++++++++
 arch/mips/boot/dts/brcm/bcm96358nb4ser.dts         |  46 ++++++++
 5 files changed, 183 insertions(+), 1 deletion(-)
 create mode 100644 arch/mips/boot/dts/brcm/bcm6358.dtsi
 create mode 100644 arch/mips/boot/dts/brcm/bcm96358nb4ser.dts

diff --git a/Documentation/devicetree/bindings/mips/brcm/soc.txt b/Documentation/devicetree/bindings/mips/brcm/soc.txt
index 7bab90c..e58a4f6 100644
--- a/Documentation/devicetree/bindings/mips/brcm/soc.txt
+++ b/Documentation/devicetree/bindings/mips/brcm/soc.txt
@@ -4,7 +4,7 @@ Required properties:
 
 - compatible: "brcm,bcm3384", "brcm,bcm33843"
               "brcm,bcm3384-viper", "brcm,bcm33843-viper"
-              "brcm,bcm6328", "brcm,bcm6368",
+              "brcm,bcm6328", "brcm,bcm6358", "brcm,bcm6368",
               "brcm,bcm7125", "brcm,bcm7346", "brcm,bcm7358", "brcm,bcm7360",
               "brcm,bcm7362", "brcm,bcm7420", "brcm,bcm7425"
 
diff --git a/arch/mips/bmips/Kconfig b/arch/mips/bmips/Kconfig
index e2c4fd6..264328d 100644
--- a/arch/mips/bmips/Kconfig
+++ b/arch/mips/bmips/Kconfig
@@ -21,6 +21,10 @@ config DT_BCM93384WVG_VIPER
 	bool "BCM93384WVG Viper CPU (EXPERIMENTAL)"
 	select BUILTIN_DTB
 
+config DT_BCM96358NB4SER
+	bool "BCM96358NB4SER"
+	select BUILTIN_DTB
+
 config DT_BCM96368MVWG
 	bool "BCM96368MVWG"
 	select BUILTIN_DTB
diff --git a/arch/mips/boot/dts/brcm/Makefile b/arch/mips/boot/dts/brcm/Makefile
index eabeb60..fda9d38 100644
--- a/arch/mips/boot/dts/brcm/Makefile
+++ b/arch/mips/boot/dts/brcm/Makefile
@@ -1,5 +1,6 @@
 dtb-$(CONFIG_DT_BCM93384WVG)		+= bcm93384wvg.dtb
 dtb-$(CONFIG_DT_BCM93384WVG_VIPER)	+= bcm93384wvg_viper.dtb
+dtb-$(CONFIG_DT_BCM96358NB4SER)		+= bcm96358nb4ser.dtb
 dtb-$(CONFIG_DT_BCM96368MVWG)		+= bcm96368mvwg.dtb
 dtb-$(CONFIG_DT_BCM9EJTAGPRB)		+= bcm9ejtagprb.dtb
 dtb-$(CONFIG_DT_BCM97125CBMB)		+= bcm97125cbmb.dtb
@@ -14,6 +15,7 @@ dtb-$(CONFIG_DT_BCM97435SVMB)		+= bcm97435svmb.dtb
 dtb-$(CONFIG_DT_NONE)			+= \
 						bcm93384wvg.dtb		\
 						bcm93384wvg_viper.dtb	\
+						bcm96358nb4ser.dtb	\
 						bcm96368mvwg.dtb	\
 						bcm9ejtagprb.dtb	\
 						bcm97125cbmb.dtb	\
diff --git a/arch/mips/boot/dts/brcm/bcm6358.dtsi b/arch/mips/boot/dts/brcm/bcm6358.dtsi
new file mode 100644
index 0000000..f9d8d39
--- /dev/null
+++ b/arch/mips/boot/dts/brcm/bcm6358.dtsi
@@ -0,0 +1,130 @@
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	compatible = "brcm,bcm6358";
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		mips-hpt-frequency = <150000000>;
+
+		cpu@0 {
+			compatible = "brcm,bmips4350";
+			device_type = "cpu";
+			reg = <0>;
+		};
+
+		cpu@1 {
+			compatible = "brcm,bmips4350";
+			device_type = "cpu";
+			reg = <1>;
+		};
+	};
+
+	clocks {
+		periph_clk: periph-clk {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <50000000>;
+		};
+	};
+
+	aliases {
+		serial0 = &uart0;
+		serial1 = &uart1;
+	};
+
+	cpu_intc: interrupt-controller {
+		#address-cells = <0>;
+		compatible = "mti,cpu-interrupt-controller";
+
+		interrupt-controller;
+		#interrupt-cells = <1>;
+	};
+
+	ubus {
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		compatible = "simple-bus";
+		ranges;
+
+		periph_cntl: syscon@fffe0000 {
+			compatible = "syscon";
+			reg = <0xfffe0000 0xc>;
+			native-endian;
+		};
+
+		reboot: syscon-reboot@fffe0008 {
+			compatible = "syscon-reboot";
+			regmap = <&periph_cntl>;
+			offset = <0x8>;
+			mask = <0x1>;
+		};
+
+		periph_intc: interrupt-controller@fffe000c {
+			compatible = "brcm,bcm6345-l1-intc";
+			reg = <0xfffe000c 0x8>,
+			      <0xfffe0038 0x8>;
+
+			interrupt-controller;
+			#interrupt-cells = <1>;
+
+			interrupt-parent = <&cpu_intc>;
+			interrupts = <2>, <3>;
+		};
+
+		leds0: led-controller@fffe00d0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "brcm,bcm6358-leds";
+			reg = <0xfffe00d0 0x8>;
+
+			status = "disabled";
+		};
+
+		uart0: serial@fffe0100 {
+			compatible = "brcm,bcm6345-uart";
+			reg = <0xfffe0100 0x18>;
+
+			interrupt-parent = <&periph_intc>;
+			interrupts = <2>;
+
+			clocks = <&periph_clk>;
+
+			status = "disabled";
+		};
+
+		uart1: serial@fffe0120 {
+			compatible = "brcm,bcm6345-uart";
+			reg = <0xfffe0120 0x18>;
+
+			interrupt-parent = <&periph_intc>;
+			interrupts = <3>;
+
+			clocks = <&periph_clk>;
+
+			status = "disabled";
+		};
+
+		ehci: usb@fffe1300 {
+			compatible = "brcm,bcm6358-ehci", "generic-ehci";
+			reg = <0xfffe1300 0x100>;
+			big-endian;
+			interrupt-parent = <&periph_intc>;
+			interrupts = <10>;
+			status = "disabled";
+		};
+
+		ohci: usb@fffe1400 {
+			compatible = "brcm,bcm6358-ohci", "generic-ohci";
+			reg = <0xfffe1400 0x100>;
+			big-endian;
+			no-big-frame-no;
+			interrupt-parent = <&periph_intc>;
+			interrupts = <5>;
+			status = "disabled";
+		};
+	};
+};
diff --git a/arch/mips/boot/dts/brcm/bcm96358nb4ser.dts b/arch/mips/boot/dts/brcm/bcm96358nb4ser.dts
new file mode 100644
index 0000000..f412117
--- /dev/null
+++ b/arch/mips/boot/dts/brcm/bcm96358nb4ser.dts
@@ -0,0 +1,46 @@
+/dts-v1/;
+
+/include/ "bcm6358.dtsi"
+
+/ {
+	compatible = "sfr,nb4-ser", "brcm,bcm6358";
+	model = "SFR Neufbox 4 (Sercomm)";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x00000000 0x02000000>;
+	};
+
+	chosen {
+		stdout-path = &uart0;
+	};
+};
+
+&leds0 {
+	status = "ok";
+
+	led@0 {
+		reg = <0>;
+		active-low;
+		label = "nb4-ser:white:alarm";
+	};
+	led@2 {
+		reg = <2>;
+		active-low;
+		label = "nb4-ser:white:tv";
+	};
+	led@3 {
+		reg = <3>;
+		active-low;
+		label = "nb4-ser:white:tel";
+	};
+	led@4 {
+		reg = <4>;
+		active-low;
+		label = "nb4-ser:white:adsl";
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
-- 
2.1.4

Re: [PATCH 2/2] bmips: add device tree example for BCM6358

[Rob Herring]

On Sat, Apr 09, 2016 at 12:56:48PM +0200, Álvaro Fernández Rojas wrote:
> This adds a device tree example for SFR Neufbox4 (Sercomm version), which
> also serves as a real example for brcm,bcm6358-leds.
> 
> Signed-off-by: Álvaro Fernández Rojas <noltari-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> ---
>  v5: more device tree improvements
>   - There is just ohci/ehci node.
>   - Avoid using underscores in node names.
>   - Use interrupt-controller for cpu_intc.
>   - Rename uart aliases to serial.
>  v4: Device tree improvements:
>   - Switch to native-endian for syscon.
>   - Switch to bcm6345-l1-intc interrupt controller.
>   - Add ehci and ohci nodes.
>  v3: Device tree fixes
>   - Use interrupt-controller instead of periph_intc.
>   - Use led@# instead of naming the LEDs.
>  v2: Remove led0 alias and use stdout-path only
> 
>  .../devicetree/bindings/mips/brcm/soc.txt          |   2 +-
>  arch/mips/bmips/Kconfig                            |   4 +
>  arch/mips/boot/dts/brcm/Makefile                   |   2 +
>  arch/mips/boot/dts/brcm/bcm6358.dtsi               | 130 +++++++++++++++++++++
>  arch/mips/boot/dts/brcm/bcm96358nb4ser.dts         |  46 ++++++++
>  5 files changed, 183 insertions(+), 1 deletion(-)
>  create mode 100644 arch/mips/boot/dts/brcm/bcm6358.dtsi
>  create mode 100644 arch/mips/boot/dts/brcm/bcm96358nb4ser.dts

Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
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