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* [PATCH 2/2] bmips: add device tree example for BCM6358
@ 2016-01-17 11:28 Álvaro Fernández Rojas
  2016-01-18  6:51 ` Florian Fainelli
       [not found] ` <1453030101-14794-2-git-send-email-noltari-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
  0 siblings, 2 replies; 6+ messages in thread
From: Álvaro Fernández Rojas @ 2016-01-17 11:28 UTC (permalink / raw)
  To: linux-mips, ralf, linux-kernel, devicetree, f.fainelli, jogo,
	cernekee
  Cc: 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>
---
 .../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         |  47 +++++++++
 5 files changed, 165 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..b2d11da
--- /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 {
+		leds0 = &leds0;
+		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>;
+		};
+
+		reboot: syscon-reboot@fffe0008 {
+			compatible = "syscon-reboot";
+			regmap = <&periph_cntl>;
+			offset = <0x8>;
+			mask = <0x1>;
+		};
+
+		periph_intc: periph_intc@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..ca95084
--- /dev/null
+++ b/arch/mips/boot/dts/brcm/bcm96358nb4ser.dts
@@ -0,0 +1,47 @@
+/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 {
+		bootargs = "console=ttyS0,115200";
+		stdout-path = &uart0;
+	};
+};
+
+&leds0 {
+	status = "ok";
+
+	alarm_white@0 {
+		reg = <0>;
+		active-low;
+		label = "nb4-ser:white:alarm";
+	};
+	tv_white@2 {
+		reg = <2>;
+		active-low;
+		label = "nb4-ser:white:tv";
+	};
+	tel_white@3 {
+		reg = <3>;
+		active-low;
+		label = "nb4-ser:white:tel";
+	};
+	adsl_white@4 {
+		reg = <4>;
+		active-low;
+		label = "nb4-ser:white:adsl";
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 6+ messages in thread
* [PATCH v4 1/2] bmips: add BCM6358 support
@ 2016-04-04  8:09 Álvaro Fernández Rojas
  2016-04-09 10:56 ` [PATCH " Álvaro Fernández Rojas
  0 siblings, 1 reply; 6+ messages in thread
From: Álvaro Fernández Rojas @ 2016-04-04  8:09 UTC (permalink / raw)
  To: linux-mips, ralf, devicetree, f.fainelli, jogo, cernekee, robh
  Cc: 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

^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2016-04-11 19:33 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-01-17 11:28 [PATCH 2/2] bmips: add device tree example for BCM6358 Álvaro Fernández Rojas
2016-01-18  6:51 ` Florian Fainelli
     [not found] ` <1453030101-14794-2-git-send-email-noltari-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-01-20 16:59   ` Rob Herring
2016-02-21 11:27     ` Álvaro Fernández Rojas
  -- strict thread matches above, loose matches on Subject: below --
2016-04-04  8:09 [PATCH v4 1/2] bmips: add BCM6358 support Álvaro Fernández Rojas
2016-04-09 10:56 ` [PATCH " Álvaro Fernández Rojas
2016-04-09 10:56   ` [PATCH 2/2] bmips: add device tree example for BCM6358 Álvaro Fernández Rojas
     [not found]     ` <1460199408-18738-2-git-send-email-noltari-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-04-11 19:33       ` Rob Herring

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