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* [PATCH v2 0/7] Initial Calxeda Highbank support
@ 2011-09-01  1:43 Rob Herring
  2011-09-01  1:44 ` [PATCH 1/7] ARM: l2x0: add empty l2x0_of_init Rob Herring
                   ` (8 more replies)
  0 siblings, 9 replies; 18+ messages in thread
From: Rob Herring @ 2011-09-01  1:43 UTC (permalink / raw)
  To: linux-arm-kernel

From: Rob Herring <rob.herring@calxeda.com>

This adds initial platform support for Calxeda's Highbank ARM SOC including
SMP, hotplug, and suspend support. One new patch to add empty version of
l2x0_of_init. Changes for v2 are listed in each patch.

Based on rmk's for-next branch with gpio.h and io.h clean-ups plus previously
posted GIC devicetree binding support. The GIC patches are here:

http://lists.infradead.org/pipermail/linux-arm-kernel/2011-August/060570.html
http://lists.infradead.org/pipermail/linux-arm-kernel/2011-August/060790.html
http://lists.infradead.org/pipermail/linux-arm-kernel/2011-August/062735.html

Rob

Martin Bogomolni (1):
  ARM: highbank: Add cpu hotplug support

Rob Herring (6):
  ARM: l2x0: add empty l2x0_of_init
  ARM: highbank: add devicetree source
  ARM: add Highbank core platform support
  MAINTAINERS: add Calxeda Highbank ARM platform
  ARM: highbank: add SMP support
  ARM: highbank: add suspend support

 Documentation/devicetree/bindings/arm/calxeda.txt |    8 +
 MAINTAINERS                                       |    6 +
 arch/arm/Kconfig                                  |   18 ++-
 arch/arm/Makefile                                 |    1 +
 arch/arm/boot/dts/highbank.dts                    |  224 +++++++++++++++++++++
 arch/arm/include/asm/hardware/cache-l2x0.h        |    7 +
 arch/arm/mach-highbank/Makefile                   |    6 +
 arch/arm/mach-highbank/Makefile.boot              |    1 +
 arch/arm/mach-highbank/clock.c                    |   62 ++++++
 arch/arm/mach-highbank/core.h                     |    9 +
 arch/arm/mach-highbank/highbank.c                 |  150 ++++++++++++++
 arch/arm/mach-highbank/hotplug.c                  |   56 +++++
 arch/arm/mach-highbank/include/mach/debug-macro.S |   19 ++
 arch/arm/mach-highbank/include/mach/entry-macro.S |    7 +
 arch/arm/mach-highbank/include/mach/gpio.h        |    1 +
 arch/arm/mach-highbank/include/mach/io.h          |    7 +
 arch/arm/mach-highbank/include/mach/irqs.h        |    6 +
 arch/arm/mach-highbank/include/mach/memory.h      |    1 +
 arch/arm/mach-highbank/include/mach/system.h      |   26 +++
 arch/arm/mach-highbank/include/mach/timex.h       |    6 +
 arch/arm/mach-highbank/include/mach/uncompress.h  |    9 +
 arch/arm/mach-highbank/include/mach/vmalloc.h     |    6 +
 arch/arm/mach-highbank/lluart.c                   |   34 +++
 arch/arm/mach-highbank/localtimer.c               |   38 ++++
 arch/arm/mach-highbank/platsmp.c                  |   78 +++++++
 arch/arm/mach-highbank/pm.c                       |   55 +++++
 arch/arm/mach-highbank/sysregs.h                  |   52 +++++
 arch/arm/mach-highbank/system.c                   |   33 +++
 arch/arm/mm/Kconfig                               |    2 +-
 29 files changed, 926 insertions(+), 2 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/arm/calxeda.txt
 create mode 100644 arch/arm/boot/dts/highbank.dts
 create mode 100644 arch/arm/mach-highbank/Makefile
 create mode 100644 arch/arm/mach-highbank/Makefile.boot
 create mode 100644 arch/arm/mach-highbank/clock.c
 create mode 100644 arch/arm/mach-highbank/core.h
 create mode 100644 arch/arm/mach-highbank/highbank.c
 create mode 100644 arch/arm/mach-highbank/hotplug.c
 create mode 100644 arch/arm/mach-highbank/include/mach/debug-macro.S
 create mode 100644 arch/arm/mach-highbank/include/mach/entry-macro.S
 create mode 100644 arch/arm/mach-highbank/include/mach/gpio.h
 create mode 100644 arch/arm/mach-highbank/include/mach/io.h
 create mode 100644 arch/arm/mach-highbank/include/mach/irqs.h
 create mode 100644 arch/arm/mach-highbank/include/mach/memory.h
 create mode 100644 arch/arm/mach-highbank/include/mach/system.h
 create mode 100644 arch/arm/mach-highbank/include/mach/timex.h
 create mode 100644 arch/arm/mach-highbank/include/mach/uncompress.h
 create mode 100644 arch/arm/mach-highbank/include/mach/vmalloc.h
 create mode 100644 arch/arm/mach-highbank/lluart.c
 create mode 100644 arch/arm/mach-highbank/localtimer.c
 create mode 100644 arch/arm/mach-highbank/platsmp.c
 create mode 100644 arch/arm/mach-highbank/pm.c
 create mode 100644 arch/arm/mach-highbank/sysregs.h
 create mode 100644 arch/arm/mach-highbank/system.c

-- 
1.7.4.1

^ permalink raw reply	[flat|nested] 18+ messages in thread
* [PATCH 1/7] ARM: l2x0: add empty l2x0_of_init
  2011-09-01  1:43 [PATCH v2 0/7] Initial Calxeda Highbank support Rob Herring
@ 2011-09-01  1:44 ` Rob Herring
  2011-09-01  3:36   ` Barry Song
  2011-09-01  1:44 ` [PATCH v2 2/7] ARM: highbank: add devicetree source Rob Herring
                   ` (7 subsequent siblings)
  8 siblings, 1 reply; 18+ messages in thread
From: Rob Herring @ 2011-09-01  1:44 UTC (permalink / raw)
  To: linux-arm-kernel

From: Rob Herring <rob.herring@calxeda.com>

Add empty version of l2x0_of_init for when CONFIG_CACHE_L2X0 is not selected.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 arch/arm/include/asm/hardware/cache-l2x0.h |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/arch/arm/include/asm/hardware/cache-l2x0.h b/arch/arm/include/asm/hardware/cache-l2x0.h
index 4a6004a..967a808 100644
--- a/arch/arm/include/asm/hardware/cache-l2x0.h
+++ b/arch/arm/include/asm/hardware/cache-l2x0.h
@@ -90,7 +90,14 @@
 
 #ifndef __ASSEMBLY__
 extern void __init l2x0_init(void __iomem *base, __u32 aux_val, __u32 aux_mask);
+#if defined(CONFIG_CACHE_L2X0) && defined(CONFIG_OF)
 extern int l2x0_of_init(__u32 aux_val, __u32 aux_mask);
+#else
+static int l2x0_of_init(__u32 aux_val, __u32 aux_mask)
+{
+	return -ENODEV;
+}
 #endif
+#endif /* __ASSEMBLY__ */
 
 #endif
-- 
1.7.4.1

^ permalink raw reply related	[flat|nested] 18+ messages in thread
* [PATCH v2 2/7] ARM: highbank: add devicetree source
  2011-09-01  1:43 [PATCH v2 0/7] Initial Calxeda Highbank support Rob Herring
  2011-09-01  1:44 ` [PATCH 1/7] ARM: l2x0: add empty l2x0_of_init Rob Herring
@ 2011-09-01  1:44 ` Rob Herring
  2011-09-01  1:44 ` [PATCH v2 3/7] ARM: add Highbank core platform support Rob Herring
                   ` (6 subsequent siblings)
  8 siblings, 0 replies; 18+ messages in thread
From: Rob Herring @ 2011-09-01  1:44 UTC (permalink / raw)
  To: linux-arm-kernel

From: Rob Herring <rob.herring@calxeda.com>

This adds the devicetree source and documentation for the Calxeda highbank
platform.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
Changes in v2:
 - Change gic interrupt-cell size to 2 and update entries to high level
   triggered.
   
 Documentation/devicetree/bindings/arm/calxeda.txt |    8 +
 arch/arm/boot/dts/highbank.dts                    |  224 +++++++++++++++++++++
 2 files changed, 232 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/arm/calxeda.txt
 create mode 100644 arch/arm/boot/dts/highbank.dts

diff --git a/Documentation/devicetree/bindings/arm/calxeda.txt b/Documentation/devicetree/bindings/arm/calxeda.txt
new file mode 100644
index 0000000..4755caa
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/calxeda.txt
@@ -0,0 +1,8 @@
+Calxeda Highbank Platforms Device Tree Bindings
+-----------------------------------------------
+
+Boards with Calxeda Cortex-A9 based Highbank SOC shall have the following
+properties.
+
+Required root node properties:
+    - compatible = "calxeda,highbank";
diff --git a/arch/arm/boot/dts/highbank.dts b/arch/arm/boot/dts/highbank.dts
new file mode 100644
index 0000000..40fe013
--- /dev/null
+++ b/arch/arm/boot/dts/highbank.dts
@@ -0,0 +1,224 @@
+/*
+ * Copyright 2011 Calxeda, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/dts-v1/;
+
+/* First 4KB has pen for secondary cores. */
+/memreserve/ 0x00000000 0x0001000;
+
+/ {
+	model = "Calxeda Highbank";
+	compatible = "calxeda,highbank";
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu at 0 {
+			compatible = "arm,cortex-a9";
+			reg = <0>;
+			next-level-cache = <&L2>;
+		};
+
+		cpu at 1 {
+			compatible = "arm,cortex-a9";
+			reg = <1>;
+			next-level-cache = <&L2>;
+		};
+
+		cpu at 2 {
+			compatible = "arm,cortex-a9";
+			reg = <2>;
+			next-level-cache = <&L2>;
+		};
+
+		cpu at 3 {
+			compatible = "arm,cortex-a9";
+			reg = <3>;
+			next-level-cache = <&L2>;
+		};
+	};
+
+	memory {
+		name = "memory";
+		device_type = "memory";
+		reg = <0x00000000 0xff900000>;
+	};
+
+	chosen {
+		bootargs = "console=ttyAMA0";
+	};
+
+	intc: interrupt-controller at fff11000 {
+		compatible = "arm,cortex-a9-gic";
+		#interrupt-cells = <2>;
+		#size-cells = <0>;
+		#address-cells = <1>;
+		interrupt-controller;
+		reg = <0xfff11000 0x1000>,
+		      <0xfff10100 0x100>;
+		      
+		gicppi0: gic-ppi at 0 {
+			compatible = "arm,cortex-a9-gic-ppi";
+			#interrupt-cells = <1>;
+			interrupt-controller;
+			reg = <0>;
+		};
+		gicppi1: gic-ppi at 1 {
+			compatible = "arm,cortex-a9-gic-ppi";
+			#interrupt-cells = <1>;
+			interrupt-controller;
+			reg = <1>;
+		};
+		gicppi2: gic-ppi at 2 {
+			compatible = "arm,cortex-a9-gic-ppi";
+			#interrupt-cells = <1>;
+			interrupt-controller;
+			reg = <2>;
+		};
+		gicppi3: gic-ppi at 3 {
+			compatible = "arm,cortex-a9-gic-ppi";
+			#interrupt-cells = <1>;
+			interrupt-controller;
+			reg = <3>;
+		};
+	};
+
+	soc {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "simple-bus";
+		interrupt-parent = <&intc>;
+		ranges;
+
+		timer at fff10600 {
+			compatible = "arm,smp-twd";
+			reg = <0xfff10600 0x20>;
+			interrupt-parent = <&gicppi0>;
+			interrupts = <29>;
+		};
+
+		watchdog at fff10620 {
+			compatible = "arm,cortex-a9-wdt";
+			reg = <0xfff10620 0x20>;
+			interrupt-parent = <&gicppi0>;
+			interrupts = <30>;
+		};
+
+		L2: l2-cache {
+			compatible = "arm,pl310-cache";
+			reg = <0xfff12000 0x1000>;
+			interrupts = <102 4>;
+			cache-unified;
+			cache-level = <2>;
+		};
+
+		pmu {
+			compatible = "arm,cortex-a9-pmu";
+			interrupts = <108 4 107 4 106 4 105 4>;
+		};
+
+		sata at ffe08000 {
+			compatible = "calxeda,hb-ahci";
+			reg = <0xffe08000 0x10000>;
+			interrupts = <115 4>;
+		};
+
+		sdhci at ffe0e000 {
+			compatible = "calxeda,hb-sdhci";
+			reg = <0xffe0e000 0x1000>;
+			interrupts = <122 4>;
+		};
+
+		ipc at fff20000 {
+			compatible = "arm,pl320", "arm,primecell";
+			reg = <0xfff20000 0x1000>;
+			interrupts = <39 4>;
+		};
+
+		gpioe: gpio at fff30000 {
+			#gpio-cells = <2>;
+			compatible = "arm,pl061", "arm,primecell";
+			gpio-controller;
+			reg = <0xfff30000 0x1000>;
+			interrupts = <46 4>;
+		};
+
+		gpiof: gpio at fff31000 {
+			#gpio-cells = <2>;
+			compatible = "arm,pl061", "arm,primecell";
+			gpio-controller;
+			reg = <0xfff31000 0x1000>;
+			interrupts = <47 4>;
+		};
+
+		gpiog: gpio at fff32000 {
+			#gpio-cells = <2>;
+			compatible = "arm,pl061", "arm,primecell";
+			gpio-controller;
+			reg = <0xfff32000 0x1000>;
+			interrupts = <48 4>;
+		};
+
+		gpioh: gpio at fff33000 {
+			#gpio-cells = <2>;
+			compatible = "arm,pl061", "arm,primecell";
+			gpio-controller;
+			reg = <0xfff33000 0x1000>;
+			interrupts = <49 4>;
+		};
+
+		timer {
+			compatible = "arm,sp804", "arm,primecell";
+			reg = <0xfff34000 0x1000>;
+			interrupts = <50 4>;
+		};
+
+		rtc at fff35000 {
+			compatible = "arm,pl031", "arm,primecell";
+			reg = <0xfff35000 0x1000>;
+			interrupts = <51 4>;
+		};
+
+		serial at fff36000 {
+			compatible = "arm,pl011", "arm,primecell";
+			reg = <0xfff36000 0x1000>;
+			interrupts = <52 4>;
+		};
+
+		smic at fff3a000 {
+			compatible = "ipmi-smic";
+			device_type = "ipmi";
+			reg = <0xfff3a000 0x1000>;
+			interrupts = <56 4>;
+			reg-size = <4>;
+			reg-spacing = <4>;
+		};
+
+		sregs at fff3c000 {
+			compatible = "calxeda,hb-sregs";
+			reg = <0xfff3c000 0x1000>;
+		};
+
+		dma at fff3d000 {
+			compatible = "arm,pl330", "arm,primecell";
+			reg = <0xfff3d000 0x1000>;
+			interrupts = <124 4>;
+		};
+	};
+};
-- 
1.7.4.1

^ permalink raw reply related	[flat|nested] 18+ messages in thread
* [PATCH v2 3/7] ARM: add Highbank core platform support
  2011-09-01  1:43 [PATCH v2 0/7] Initial Calxeda Highbank support Rob Herring
  2011-09-01  1:44 ` [PATCH 1/7] ARM: l2x0: add empty l2x0_of_init Rob Herring
  2011-09-01  1:44 ` [PATCH v2 2/7] ARM: highbank: add devicetree source Rob Herring
@ 2011-09-01  1:44 ` Rob Herring
  2011-09-01  1:44 ` [PATCH v2 4/7] MAINTAINERS: add Calxeda Highbank ARM platform Rob Herring
                   ` (5 subsequent siblings)
  8 siblings, 0 replies; 18+ messages in thread
From: Rob Herring @ 2011-09-01  1:44 UTC (permalink / raw)
  To: linux-arm-kernel

From: Rob Herring <rob.herring@calxeda.com>

This adds basic support for the Calxeda Highbank platform.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
Changes in v2:
 - s/a9_base_addr/scu_base_addr/
 - Move DEBUG_LL io mapping to lluart.c
 - Convert direct sysregs accesses to inline helper functions
 - drop gpio interrupt mapping for now
 - Remove IO_SPACE_LIMIT and fix warnings from inb, outb, etc. due parameter
   being unused in __io
 - sort Kconfig select entries
 - Add WARN_ON for ioremap failures
 - drop unneeded include from entry-macro.S
 - remove #ifdef around l2x0_of_init
 - Add "/* empty */" to empty headers
 
 arch/arm/Kconfig                                  |   16 +++
 arch/arm/Makefile                                 |    1 +
 arch/arm/mach-highbank/Makefile                   |    2 +
 arch/arm/mach-highbank/Makefile.boot              |    1 +
 arch/arm/mach-highbank/clock.c                    |   62 +++++++++
 arch/arm/mach-highbank/core.h                     |    9 ++
 arch/arm/mach-highbank/highbank.c                 |  150 +++++++++++++++++++++
 arch/arm/mach-highbank/include/mach/debug-macro.S |   19 +++
 arch/arm/mach-highbank/include/mach/entry-macro.S |    7 +
 arch/arm/mach-highbank/include/mach/gpio.h        |    1 +
 arch/arm/mach-highbank/include/mach/io.h          |    7 +
 arch/arm/mach-highbank/include/mach/irqs.h        |    6 +
 arch/arm/mach-highbank/include/mach/memory.h      |    1 +
 arch/arm/mach-highbank/include/mach/system.h      |   26 ++++
 arch/arm/mach-highbank/include/mach/timex.h       |    6 +
 arch/arm/mach-highbank/include/mach/uncompress.h  |    9 ++
 arch/arm/mach-highbank/include/mach/vmalloc.h     |    6 +
 arch/arm/mach-highbank/lluart.c                   |   34 +++++
 arch/arm/mach-highbank/sysregs.h                  |   52 +++++++
 arch/arm/mach-highbank/system.c                   |   33 +++++
 arch/arm/mm/Kconfig                               |    2 +-
 21 files changed, 449 insertions(+), 1 deletions(-)
 create mode 100644 arch/arm/mach-highbank/Makefile
 create mode 100644 arch/arm/mach-highbank/Makefile.boot
 create mode 100644 arch/arm/mach-highbank/clock.c
 create mode 100644 arch/arm/mach-highbank/core.h
 create mode 100644 arch/arm/mach-highbank/highbank.c
 create mode 100644 arch/arm/mach-highbank/include/mach/debug-macro.S
 create mode 100644 arch/arm/mach-highbank/include/mach/entry-macro.S
 create mode 100644 arch/arm/mach-highbank/include/mach/gpio.h
 create mode 100644 arch/arm/mach-highbank/include/mach/io.h
 create mode 100644 arch/arm/mach-highbank/include/mach/irqs.h
 create mode 100644 arch/arm/mach-highbank/include/mach/memory.h
 create mode 100644 arch/arm/mach-highbank/include/mach/system.h
 create mode 100644 arch/arm/mach-highbank/include/mach/timex.h
 create mode 100644 arch/arm/mach-highbank/include/mach/uncompress.h
 create mode 100644 arch/arm/mach-highbank/include/mach/vmalloc.h
 create mode 100644 arch/arm/mach-highbank/lluart.c
 create mode 100644 arch/arm/mach-highbank/sysregs.h
 create mode 100644 arch/arm/mach-highbank/system.c

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 63cbd86..9019a56 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -314,6 +314,22 @@ config ARCH_BCMRING
 	help
 	  Support for Broadcom's BCMRing platform.
 
+config ARCH_HIGHBANK
+	bool "Calxeda Highbank-based"
+	select ARCH_WANT_OPTIONAL_GPIOLIB
+	select ARM_AMBA
+	select ARM_GIC
+	select ARM_PATCH_PHYS_VIRT
+	select ARM_TIMER_SP804
+	select AUTO_ZRELADDR
+	select CLKDEV_LOOKUP
+	select CPU_V7
+	select GENERIC_CLOCKEVENTS
+	select HAVE_ARM_SCU
+	select USE_OF
+	help
+	  Support for the Calxeda Highbank SoC based boards.
+
 config ARCH_CLPS711X
 	bool "Cirrus Logic CLPS711x/EP721x-based"
 	select CPU_ARM720T
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 5665c2a..98c3c22 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -144,6 +144,7 @@ machine-$(CONFIG_ARCH_EBSA110)		:= ebsa110
 machine-$(CONFIG_ARCH_EP93XX)		:= ep93xx
 machine-$(CONFIG_ARCH_GEMINI)		:= gemini
 machine-$(CONFIG_ARCH_H720X)		:= h720x
+machine-$(CONFIG_ARCH_HIGHBANK)		:= highbank
 machine-$(CONFIG_ARCH_INTEGRATOR)	:= integrator
 machine-$(CONFIG_ARCH_IOP13XX)		:= iop13xx
 machine-$(CONFIG_ARCH_IOP32X)		:= iop32x
diff --git a/arch/arm/mach-highbank/Makefile b/arch/arm/mach-highbank/Makefile
new file mode 100644
index 0000000..11d4010
--- /dev/null
+++ b/arch/arm/mach-highbank/Makefile
@@ -0,0 +1,2 @@
+obj-y					:= clock.o highbank.o system.o
+obj-$(CONFIG_DEBUG_LL)			+= lluart.o
diff --git a/arch/arm/mach-highbank/Makefile.boot b/arch/arm/mach-highbank/Makefile.boot
new file mode 100644
index 0000000..dae9661
--- /dev/null
+++ b/arch/arm/mach-highbank/Makefile.boot
@@ -0,0 +1 @@
+zreladdr-y	:= 0x00008000
diff --git a/arch/arm/mach-highbank/clock.c b/arch/arm/mach-highbank/clock.c
new file mode 100644
index 0000000..c25a2ae
--- /dev/null
+++ b/arch/arm/mach-highbank/clock.c
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2011 Calxeda, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+
+struct clk {
+	unsigned long rate;
+};
+
+int clk_enable(struct clk *clk)
+{
+	return 0;
+}
+
+void clk_disable(struct clk *clk)
+{}
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+	return clk->rate;
+}
+
+long clk_round_rate(struct clk *clk, unsigned long rate)
+{
+	return clk->rate;
+}
+
+int clk_set_rate(struct clk *clk, unsigned long rate)
+{
+	return 0;
+}
+
+static struct clk eclk = { .rate = 200000000 };
+static struct clk pclk = { .rate = 150000000 };
+
+static struct clk_lookup lookups[] = {
+	{ .clk = &pclk, .con_id = "apb_pclk", },
+	{ .clk = &pclk, .dev_id = "sp804", },
+	{ .clk = &eclk, .dev_id = "ffe0e000.sdhci", },
+	{ .clk = &pclk, .dev_id = "fff36000.serial", },
+};
+
+void __init highbank_clocks_init(void)
+{
+	clkdev_add_table(lookups, ARRAY_SIZE(lookups));
+}
diff --git a/arch/arm/mach-highbank/core.h b/arch/arm/mach-highbank/core.h
new file mode 100644
index 0000000..9df3fc7
--- /dev/null
+++ b/arch/arm/mach-highbank/core.h
@@ -0,0 +1,9 @@
+extern void highbank_set_cpu_jump(int cpu, void *jump_addr);
+extern void highbank_clocks_init(void);
+extern void __iomem *scu_base_addr;
+#ifdef CONFIG_DEBUG_LL
+extern void highbank_lluart_map_io(void);
+#else
+static inline void highbank_lluart_map_io(void) {}
+#endif
+
diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c
new file mode 100644
index 0000000..fb257e0
--- /dev/null
+++ b/arch/arm/mach-highbank/highbank.c
@@ -0,0 +1,150 @@
+/*
+ * Copyright 2010-2011 Calxeda, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/of_address.h>
+
+#include <asm/cacheflush.h>
+#include <asm/unified.h>
+#include <asm/smp_scu.h>
+#include <asm/hardware/arm_timer.h>
+#include <asm/hardware/timer-sp.h>
+#include <asm/hardware/gic.h>
+#include <asm/hardware/cache-l2x0.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/time.h>
+#include <mach/irqs.h>
+
+#include "core.h"
+#include "sysregs.h"
+
+void __iomem *sregs_base;
+
+#define HB_SCU_VIRT_BASE	0xfee00000
+void __iomem *scu_base_addr = ((void __iomem *)(HB_SCU_VIRT_BASE));
+
+static struct map_desc scu_io_desc __initdata = {
+	.virtual	= HB_SCU_VIRT_BASE,
+	.pfn		= 0, /* run-time */
+	.length		= SZ_4K,
+	.type		= MT_DEVICE,
+};
+
+static void __init highbank_scu_map_io(void)
+{
+	unsigned long base;
+
+	/* Get SCU base */
+	asm("mrc p15, 4, %0, c15, c0, 0" : "=r" (base));
+
+	scu_io_desc.pfn = __phys_to_pfn(base);
+	iotable_init(&scu_io_desc, 1);
+}
+
+static void __init highbank_map_io(void)
+{
+	highbank_scu_map_io();
+	highbank_lluart_map_io();
+}
+
+#define HB_JUMP_TABLE_PHYS(cpu)		(0x40 + (0x10 * (cpu)))
+#define HB_JUMP_TABLE_VIRT(cpu)		phys_to_virt(HB_JUMP_TABLE_PHYS(cpu))
+
+void highbank_set_cpu_jump(int cpu, void *jump_addr)
+{
+	writel(BSYM(virt_to_phys(jump_addr)), HB_JUMP_TABLE_VIRT(cpu));
+	__cpuc_flush_dcache_area(HB_JUMP_TABLE_VIRT(cpu), 16);
+	outer_clean_range(HB_JUMP_TABLE_PHYS(cpu),
+			  HB_JUMP_TABLE_PHYS(cpu) + 15);
+}
+
+void highbank_init_irq(void)
+{
+	struct device_node *node;
+	struct of_intc_desc desc;
+
+	memset(&desc, 0, sizeof(desc));
+	desc.controller = of_find_compatible_node(NULL, NULL, "arm,cortex-a9-gic");
+	gic_of_init(&desc);
+	node = desc.controller;
+	for_each_child_of_node(node, desc.controller)
+		gic_of_ppi_init(&desc);
+
+	l2x0_of_init(0, ~0UL);
+}
+
+static void __init highbank_timer_init(void)
+{
+	int irq;
+	struct device_node *np;
+	void __iomem *timer_base;
+
+	/* Map system registers */
+	np = of_find_compatible_node(NULL, NULL, "calxeda,hb-sregs");
+	sregs_base = of_iomap(np, 0);
+	WARN_ON(!sregs_base);
+
+	np = of_find_compatible_node(NULL, NULL, "arm,sp804");
+	timer_base = of_iomap(np, 0);
+	WARN_ON(!timer_base);
+	irq = irq_of_parse_and_map(np, 0);
+
+	highbank_clocks_init();
+
+	sp804_clocksource_init(timer_base + 0x20, "timer1");
+	sp804_clockevents_init(timer_base, irq, "timer0");
+}
+
+static struct sys_timer highbank_timer = {
+	.init = highbank_timer_init,
+};
+
+static void highbank_power_off(void)
+{
+	hignbank_set_pwr_shutdown();
+	scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
+
+	while (1)
+		cpu_do_idle();
+}
+
+static void __init highbank_init(void)
+{
+	pm_power_off = highbank_power_off;
+
+	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+}
+
+static const char *highbank_match[] __initconst = {
+	"calxeda,highbank",
+	NULL,
+};
+
+DT_MACHINE_START(HIGHBANK, "Highbank")
+	.map_io		= highbank_map_io,
+	.init_irq	= highbank_init_irq,
+	.nr_irqs	= NR_IRQS,
+	.timer		= &highbank_timer,
+	.init_machine	= highbank_init,
+	.dt_compat	= highbank_match,
+MACHINE_END
diff --git a/arch/arm/mach-highbank/include/mach/debug-macro.S b/arch/arm/mach-highbank/include/mach/debug-macro.S
new file mode 100644
index 0000000..2f3e344
--- /dev/null
+++ b/arch/arm/mach-highbank/include/mach/debug-macro.S
@@ -0,0 +1,19 @@
+/*
+ * Debugging macro include header
+ *
+ *  Copyright (C) 1994-1999 Russell King
+ *  Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
+ *
+ * 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.
+ */
+
+		.macro	addruart,rp,rv
+		movw	\rv, #0x6000
+		movt	\rv, #0xfee3
+		movw	\rp, #0x6000
+		movt	\rp, #0xfff3
+		.endm
+
+#include <asm/hardware/debug-pl01x.S>
diff --git a/arch/arm/mach-highbank/include/mach/entry-macro.S b/arch/arm/mach-highbank/include/mach/entry-macro.S
new file mode 100644
index 0000000..73c1129
--- /dev/null
+++ b/arch/arm/mach-highbank/include/mach/entry-macro.S
@@ -0,0 +1,7 @@
+#include <asm/hardware/entry-macro-gic.S>
+
+	.macro	disable_fiq
+	.endm
+
+	.macro	arch_ret_to_user, tmp1, tmp2
+	.endm
diff --git a/arch/arm/mach-highbank/include/mach/gpio.h b/arch/arm/mach-highbank/include/mach/gpio.h
new file mode 100644
index 0000000..40a8c17
--- /dev/null
+++ b/arch/arm/mach-highbank/include/mach/gpio.h
@@ -0,0 +1 @@
+/* empty */
diff --git a/arch/arm/mach-highbank/include/mach/io.h b/arch/arm/mach-highbank/include/mach/io.h
new file mode 100644
index 0000000..70cfa3b
--- /dev/null
+++ b/arch/arm/mach-highbank/include/mach/io.h
@@ -0,0 +1,7 @@
+#ifndef __MACH_IO_H
+#define __MACH_IO_H
+
+#define __io(a)		({ (void)(a); __typesafe_io(0); })
+#define __mem_pci(a)	(a)
+
+#endif
diff --git a/arch/arm/mach-highbank/include/mach/irqs.h b/arch/arm/mach-highbank/include/mach/irqs.h
new file mode 100644
index 0000000..9746aab
--- /dev/null
+++ b/arch/arm/mach-highbank/include/mach/irqs.h
@@ -0,0 +1,6 @@
+#ifndef __MACH_IRQS_H
+#define __MACH_IRQS_H
+
+#define NR_IRQS			192
+
+#endif
diff --git a/arch/arm/mach-highbank/include/mach/memory.h b/arch/arm/mach-highbank/include/mach/memory.h
new file mode 100644
index 0000000..40a8c17
--- /dev/null
+++ b/arch/arm/mach-highbank/include/mach/memory.h
@@ -0,0 +1 @@
+/* empty */
diff --git a/arch/arm/mach-highbank/include/mach/system.h b/arch/arm/mach-highbank/include/mach/system.h
new file mode 100644
index 0000000..7e81922
--- /dev/null
+++ b/arch/arm/mach-highbank/include/mach/system.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright 2010-2011 Calxeda, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef __MACH_SYSTEM_H
+#define __MACH_SYSTEM_H
+
+static inline void arch_idle(void)
+{
+	cpu_do_idle();
+}
+
+extern void arch_reset(char mode, const char *cmd);
+
+#endif
diff --git a/arch/arm/mach-highbank/include/mach/timex.h b/arch/arm/mach-highbank/include/mach/timex.h
new file mode 100644
index 0000000..88dac7a
--- /dev/null
+++ b/arch/arm/mach-highbank/include/mach/timex.h
@@ -0,0 +1,6 @@
+#ifndef __MACH_TIMEX_H
+#define __MACH_TIMEX_H
+
+#define CLOCK_TICK_RATE		1000000
+
+#endif
diff --git a/arch/arm/mach-highbank/include/mach/uncompress.h b/arch/arm/mach-highbank/include/mach/uncompress.h
new file mode 100644
index 0000000..bbe20e6
--- /dev/null
+++ b/arch/arm/mach-highbank/include/mach/uncompress.h
@@ -0,0 +1,9 @@
+#ifndef __MACH_UNCOMPRESS_H
+#define __MACH_UNCOMPRESS_H
+
+#define putc(c)
+#define flush()
+#define arch_decomp_setup()
+#define arch_decomp_wdog()
+
+#endif
diff --git a/arch/arm/mach-highbank/include/mach/vmalloc.h b/arch/arm/mach-highbank/include/mach/vmalloc.h
new file mode 100644
index 0000000..1a3e398
--- /dev/null
+++ b/arch/arm/mach-highbank/include/mach/vmalloc.h
@@ -0,0 +1,6 @@
+#ifndef __MACH_VMALLOC_H
+#define __MACH_VMALLOC_H
+
+#define VMALLOC_END		0xFEE00000UL
+
+#endif
diff --git a/arch/arm/mach-highbank/lluart.c b/arch/arm/mach-highbank/lluart.c
new file mode 100644
index 0000000..3715750
--- /dev/null
+++ b/arch/arm/mach-highbank/lluart.c
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2011 Calxeda, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/init.h>
+#include <asm/page.h>
+#include <asm/sizes.h>
+#include <asm/mach/map.h>
+
+#define HB_DEBUG_LL_PHYS_BASE	0xfff36000
+#define HB_DEBUG_LL_VIRT_BASE	0xfee36000
+
+static struct map_desc lluart_io_desc __initdata = {
+	.virtual	= HB_DEBUG_LL_VIRT_BASE,
+	.pfn		= __phys_to_pfn(HB_DEBUG_LL_PHYS_BASE),
+	.length		= SZ_4K,
+	.type		= MT_DEVICE,
+};
+
+void __init highbank_lluart_map_io(void)
+{
+	iotable_init(&lluart_io_desc, 1);
+}
diff --git a/arch/arm/mach-highbank/sysregs.h b/arch/arm/mach-highbank/sysregs.h
new file mode 100644
index 0000000..0e91338
--- /dev/null
+++ b/arch/arm/mach-highbank/sysregs.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2011 Calxeda, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _MACH_HIGHBANK__SYSREGS_H_
+#define _MACH_HIGHBANK__SYSREGS_H_
+
+#include <linux/io.h>
+
+extern void __iomem *sregs_base;
+
+#define HB_SREG_A9_PWR_REQ		0xf00
+#define HB_SREG_A9_BOOT_STAT		0xf04
+#define HB_SREG_A9_BOOT_DATA		0xf08
+
+#define HB_PWR_SUSPEND			0
+#define HB_PWR_SOFT_RESET		1
+#define HB_PWR_HARD_RESET		2
+#define HB_PWR_SHUTDOWN			3
+
+static inline void hignbank_set_pwr_suspend(void)
+{
+	writel(HB_PWR_SUSPEND, sregs_base + HB_SREG_A9_PWR_REQ);
+}
+
+static inline void hignbank_set_pwr_shutdown(void)
+{
+	writel(HB_PWR_SHUTDOWN, sregs_base + HB_SREG_A9_PWR_REQ);
+}
+
+static inline void hignbank_set_pwr_soft_reset(void)
+{
+	writel(HB_PWR_SOFT_RESET, sregs_base + HB_SREG_A9_PWR_REQ);
+}
+
+static inline void hignbank_set_pwr_hard_reset(void)
+{
+	writel(HB_PWR_HARD_RESET, sregs_base + HB_SREG_A9_PWR_REQ);
+}
+
+#endif
diff --git a/arch/arm/mach-highbank/system.c b/arch/arm/mach-highbank/system.c
new file mode 100644
index 0000000..53f0c4c
--- /dev/null
+++ b/arch/arm/mach-highbank/system.c
@@ -0,0 +1,33 @@
+/*
+ * Copyright 2011 Calxeda, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/io.h>
+#include <asm/smp_scu.h>
+#include <asm/proc-fns.h>
+
+#include "core.h"
+#include "sysregs.h"
+
+void arch_reset(char mode, const char *cmd)
+{
+	if (mode == 'h')
+		hignbank_set_pwr_hard_reset();
+	else
+		hignbank_set_pwr_soft_reset();
+
+	scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
+	cpu_do_idle();
+}
+
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 88633fe..7d5fff7 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -822,7 +822,7 @@ config CACHE_L2X0
 		   REALVIEW_EB_A9MP || SOC_IMX35 || SOC_IMX31 || MACH_REALVIEW_PBX || \
 		   ARCH_NOMADIK || ARCH_OMAP4 || ARCH_EXYNOS4 || ARCH_TEGRA || \
 		   ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || ARCH_SHMOBILE || \
-		   ARCH_PRIMA2 || ARCH_ZYNQ || ARCH_CNS3XXX
+		   ARCH_PRIMA2 || ARCH_ZYNQ || ARCH_CNS3XXX || ARCH_HIGHBANK
 	default y
 	select OUTER_CACHE
 	select OUTER_CACHE_SYNC
-- 
1.7.4.1

^ permalink raw reply related	[flat|nested] 18+ messages in thread
* [PATCH v2 4/7] MAINTAINERS: add Calxeda Highbank ARM platform
  2011-09-01  1:43 [PATCH v2 0/7] Initial Calxeda Highbank support Rob Herring
                   ` (2 preceding siblings ...)
  2011-09-01  1:44 ` [PATCH v2 3/7] ARM: add Highbank core platform support Rob Herring
@ 2011-09-01  1:44 ` Rob Herring
  2011-09-01  1:44 ` [PATCH v2 5/7] ARM: highbank: add SMP support Rob Herring
                   ` (4 subsequent siblings)
  8 siblings, 0 replies; 18+ messages in thread
From: Rob Herring @ 2011-09-01  1:44 UTC (permalink / raw)
  To: linux-arm-kernel

From: Rob Herring <rob.herring@calxeda.com>

Adding maintainer for arch/arm/mach-highbank/

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 MAINTAINERS |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 1a8cc60..6c036ea 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -688,6 +688,12 @@ F:	drivers/mtd/nand/bcm_umi_nand.c
 F:	drivers/mtd/nand/bcm_umi_bch.c
 F:	drivers/mtd/nand/nand_bcm_umi.h
 
+ARM/CALXEDA HIGHBANK ARCHITECTURE
+M:	Rob Herring <rob.herring@calxeda.com>
+L:	linux-arm-kernel at lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+F:	arch/arm/mach-highbank/
+
 ARM/CAVIUM NETWORKS CNS3XXX MACHINE SUPPORT
 M:	Anton Vorontsov <avorontsov@mvista.com>
 S:	Maintained
-- 
1.7.4.1

^ permalink raw reply related	[flat|nested] 18+ messages in thread
* [PATCH v2 5/7] ARM: highbank: add SMP support
  2011-09-01  1:43 [PATCH v2 0/7] Initial Calxeda Highbank support Rob Herring
                   ` (3 preceding siblings ...)
  2011-09-01  1:44 ` [PATCH v2 4/7] MAINTAINERS: add Calxeda Highbank ARM platform Rob Herring
@ 2011-09-01  1:44 ` Rob Herring
  2011-09-06  1:01   ` Shawn Guo
  2011-09-01  1:44 ` [PATCH v2 6/7] ARM: highbank: Add cpu hotplug support Rob Herring
                   ` (3 subsequent siblings)
  8 siblings, 1 reply; 18+ messages in thread
From: Rob Herring @ 2011-09-01  1:44 UTC (permalink / raw)
  To: linux-arm-kernel

From: Rob Herring <rob.herring@calxeda.com>

This enables SMP support on highbank processor.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
Changes in v2:
 - drop NULL check of scu_base
 - use IPI #0 instead of #1 to boot secondary
 - s/a9_base_addr/scu_base_addr/
 - fix muliple mapping of twd registers

 arch/arm/Kconfig                    |    2 +-
 arch/arm/mach-highbank/Makefile     |    2 +
 arch/arm/mach-highbank/localtimer.c |   38 +++++++++++++++++
 arch/arm/mach-highbank/platsmp.c    |   78 +++++++++++++++++++++++++++++++++++
 4 files changed, 119 insertions(+), 1 deletions(-)
 create mode 100644 arch/arm/mach-highbank/localtimer.c
 create mode 100644 arch/arm/mach-highbank/platsmp.c

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 9019a56..6d2add5 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1372,7 +1372,7 @@ config SMP
 	depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
 		 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
 		 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
-		 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
+		 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE || ARCH_HIGHBANK
 	select USE_GENERIC_SMP_HELPERS
 	select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
 	help
diff --git a/arch/arm/mach-highbank/Makefile b/arch/arm/mach-highbank/Makefile
index 11d4010..311c0e8e 100644
--- a/arch/arm/mach-highbank/Makefile
+++ b/arch/arm/mach-highbank/Makefile
@@ -1,2 +1,4 @@
 obj-y					:= clock.o highbank.o system.o
 obj-$(CONFIG_DEBUG_LL)			+= lluart.o
+obj-$(CONFIG_SMP)			+= platsmp.o
+obj-$(CONFIG_LOCAL_TIMERS)		+= localtimer.o
diff --git a/arch/arm/mach-highbank/localtimer.c b/arch/arm/mach-highbank/localtimer.c
new file mode 100644
index 0000000..344ea29
--- /dev/null
+++ b/arch/arm/mach-highbank/localtimer.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2010-2011 Calxeda, Inc.
+ * Based on localtimer.c, Copyright (C) 2002 ARM Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/init.h>
+#include <linux/clockchips.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+
+#include <asm/smp_twd.h>
+
+/*
+ * Setup the local clock events for a CPU.
+ */
+int __cpuinit local_timer_setup(struct clock_event_device *evt)
+{
+	struct device_node *np;
+
+	np = of_find_compatible_node(NULL, NULL, "arm,smp-twd");
+	if (!twd_base)
+		twd_base = of_iomap(np, 0);
+	evt->irq = irq_of_parse_and_map(np, 0);
+	twd_timer_setup(evt);
+	return 0;
+}
diff --git a/arch/arm/mach-highbank/platsmp.c b/arch/arm/mach-highbank/platsmp.c
new file mode 100644
index 0000000..d01364c
--- /dev/null
+++ b/arch/arm/mach-highbank/platsmp.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright 2010-2011 Calxeda, Inc.
+ * Based on platsmp.c, Copyright (C) 2002 ARM Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/init.h>
+#include <linux/smp.h>
+#include <linux/io.h>
+
+#include <asm/smp_scu.h>
+#include <asm/hardware/gic.h>
+
+#include "core.h"
+
+extern void secondary_startup(void);
+
+void __cpuinit platform_secondary_init(unsigned int cpu)
+{
+	gic_secondary_init(0);
+}
+
+int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
+{
+	gic_raise_softirq(cpumask_of(cpu), 0);
+	return 0;
+}
+
+/*
+ * Initialise the CPU possible map early - this describes the CPUs
+ * which may be present or become present in the system.
+ */
+void __init smp_init_cpus(void)
+{
+	unsigned int i, ncores;
+
+	ncores = scu_get_core_count(scu_base_addr);
+
+	/* sanity check */
+	if (ncores > NR_CPUS) {
+		printk(KERN_WARNING
+		       "highbank: no. of cores (%d) greater than configured "
+		       "maximum of %d - clipping\n",
+		       ncores, NR_CPUS);
+		ncores = NR_CPUS;
+	}
+
+	for (i = 0; i < ncores; i++)
+		set_cpu_possible(i, true);
+
+	set_smp_cross_call(gic_raise_softirq);
+}
+
+void __init platform_smp_prepare_cpus(unsigned int max_cpus)
+{
+	int i;
+
+	scu_enable(scu_base_addr);
+
+	/*
+	 * Write the address of secondary startup into the jump table
+	 * The cores are in wfi and wait until they receive a soft interrupt
+	 * and a non-zero value to jump to. Then the secondary CPU branches
+	 * to this address.
+	 */
+	for (i = 1; i < max_cpus; i++)
+		highbank_set_cpu_jump(i, secondary_startup);
+}
-- 
1.7.4.1

^ permalink raw reply related	[flat|nested] 18+ messages in thread
* [PATCH v2 6/7] ARM: highbank: Add cpu hotplug support
  2011-09-01  1:43 [PATCH v2 0/7] Initial Calxeda Highbank support Rob Herring
                   ` (4 preceding siblings ...)
  2011-09-01  1:44 ` [PATCH v2 5/7] ARM: highbank: add SMP support Rob Herring
@ 2011-09-01  1:44 ` Rob Herring
  2011-09-01  1:44 ` [PATCH v2 7/7] ARM: highbank: add suspend support Rob Herring
                   ` (2 subsequent siblings)
  8 siblings, 0 replies; 18+ messages in thread
From: Rob Herring @ 2011-09-01  1:44 UTC (permalink / raw)
  To: linux-arm-kernel

From: Martin Bogomolni <martin@calxeda.com>

This adds cpu hotplug for highbank. On highbank, a core is always reset and
boots up the same path as a cold boot.

Signed-off-by: Martin Bogomolni <martin@calxeda.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
Changes in v2:
 - s/a9_base_addr/scu_base_addr/
 
 arch/arm/mach-highbank/Makefile  |    1 +
 arch/arm/mach-highbank/hotplug.c |   56 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 57 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/mach-highbank/hotplug.c

diff --git a/arch/arm/mach-highbank/Makefile b/arch/arm/mach-highbank/Makefile
index 311c0e8e..df30b0d 100644
--- a/arch/arm/mach-highbank/Makefile
+++ b/arch/arm/mach-highbank/Makefile
@@ -2,3 +2,4 @@ obj-y					:= clock.o highbank.o system.o
 obj-$(CONFIG_DEBUG_LL)			+= lluart.o
 obj-$(CONFIG_SMP)			+= platsmp.o
 obj-$(CONFIG_LOCAL_TIMERS)		+= localtimer.o
+obj-$(CONFIG_HOTPLUG_CPU)		+= hotplug.o
diff --git a/arch/arm/mach-highbank/hotplug.c b/arch/arm/mach-highbank/hotplug.c
new file mode 100644
index 0000000..977cebb
--- /dev/null
+++ b/arch/arm/mach-highbank/hotplug.c
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2011 Calxeda, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/smp.h>
+
+#include <asm/smp_scu.h>
+#include <asm/cacheflush.h>
+
+#include "core.h"
+
+extern void secondary_startup(void);
+
+int platform_cpu_kill(unsigned int cpu)
+{
+	return 1;
+}
+
+/*
+ * platform-specific code to shutdown a CPU
+ *
+ */
+void platform_cpu_die(unsigned int cpu)
+{
+	flush_cache_all();
+
+	highbank_set_cpu_jump(cpu, secondary_startup);
+	scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
+
+	cpu_do_idle();
+
+	/* We should never return from idle */
+	panic("highbank: cpu %d unexpectedly exit from shutdown\n", cpu);
+}
+
+int platform_cpu_disable(unsigned int cpu)
+{
+	/*
+	 * CPU0 should not be shut down via hotplug.  cpu_idle can WFI
+	 * or a proper shutdown or hibernate should be used.
+	 */
+	return cpu == 0 ? -EPERM : 0;
+}
-- 
1.7.4.1

^ permalink raw reply related	[flat|nested] 18+ messages in thread
* [PATCH v2 7/7] ARM: highbank: add suspend support
  2011-09-01  1:43 [PATCH v2 0/7] Initial Calxeda Highbank support Rob Herring
                   ` (5 preceding siblings ...)
  2011-09-01  1:44 ` [PATCH v2 6/7] ARM: highbank: Add cpu hotplug support Rob Herring
@ 2011-09-01  1:44 ` Rob Herring
  2011-09-01 12:22   ` Shawn Guo
  2011-09-01 14:00 ` [PATCH v2 0/7] Initial Calxeda Highbank support Jamie Iles
  2011-09-26 18:39 ` Rob Herring
  8 siblings, 1 reply; 18+ messages in thread
From: Rob Herring @ 2011-09-01  1:44 UTC (permalink / raw)
  To: linux-arm-kernel

From: Rob Herring <rob.herring@calxeda.com>

Add the platform suspend ops for highbank.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
Changes in v2:
 - s/a9_base_addr/scu_base_addr/
 - use sysregs helper functions
 - add __init to highbank_pm_init

 arch/arm/mach-highbank/Makefile |    1 +
 arch/arm/mach-highbank/pm.c     |   55 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 56 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/mach-highbank/pm.c

diff --git a/arch/arm/mach-highbank/Makefile b/arch/arm/mach-highbank/Makefile
index df30b0d..daeb3d8 100644
--- a/arch/arm/mach-highbank/Makefile
+++ b/arch/arm/mach-highbank/Makefile
@@ -3,3 +3,4 @@ obj-$(CONFIG_DEBUG_LL)			+= lluart.o
 obj-$(CONFIG_SMP)			+= platsmp.o
 obj-$(CONFIG_LOCAL_TIMERS)		+= localtimer.o
 obj-$(CONFIG_HOTPLUG_CPU)		+= hotplug.o
+obj-$(CONFIG_PM_SLEEP)			+= pm.o
diff --git a/arch/arm/mach-highbank/pm.c b/arch/arm/mach-highbank/pm.c
new file mode 100644
index 0000000..33b3beb
--- /dev/null
+++ b/arch/arm/mach-highbank/pm.c
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2011 Calxeda, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/suspend.h>
+
+#include <asm/proc-fns.h>
+#include <asm/smp_scu.h>
+#include <asm/suspend.h>
+
+#include "core.h"
+#include "sysregs.h"
+
+static int highbank_suspend_finish(unsigned long val)
+{
+	cpu_do_idle();
+	return 0;
+}
+
+static int highbank_pm_enter(suspend_state_t state)
+{
+	hignbank_set_pwr_suspend();
+	highbank_set_cpu_jump(0, cpu_resume);
+
+	scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
+	cpu_suspend(0, highbank_suspend_finish);
+
+	return 0;
+}
+
+static const struct platform_suspend_ops highbank_pm_ops = {
+	.enter = highbank_pm_enter,
+	.valid = suspend_valid_only_mem,
+};
+
+static int __init highbank_pm_init(void)
+{
+	suspend_set_ops(&highbank_pm_ops);
+	return 0;
+}
+module_init(highbank_pm_init);
-- 
1.7.4.1

^ permalink raw reply related	[flat|nested] 18+ messages in thread
* [PATCH 1/7] ARM: l2x0: add empty l2x0_of_init
  2011-09-01  1:44 ` [PATCH 1/7] ARM: l2x0: add empty l2x0_of_init Rob Herring
@ 2011-09-01  3:36   ` Barry Song
  2011-09-01  3:58     ` Rob Herring
  0 siblings, 1 reply; 18+ messages in thread
From: Barry Song @ 2011-09-01  3:36 UTC (permalink / raw)
  To: linux-arm-kernel

2011/9/1 Rob Herring <robherring2@gmail.com>:
> From: Rob Herring <rob.herring@calxeda.com>
>
> Add empty version of l2x0_of_init for when CONFIG_CACHE_L2X0 is not selected.
>
> Signed-off-by: Rob Herring <rob.herring@calxeda.com>

Acked-by: Barry Song <21cnbao@gmail.com>

it seems most people use
"
#ifdef CONFIG_CACHE_L2X0
...
l2x0 related codes
...
#endif
"
or
"
obj-$(CONFIG_CACHE_L2X0) += xxx-l2x0.o
"

to avoid l2x0 related codes compiled and linked into kernel.

but this patch provides another option. it is not bad too.

> ---
> ?arch/arm/include/asm/hardware/cache-l2x0.h | ? ?7 +++++++
> ?1 files changed, 7 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/include/asm/hardware/cache-l2x0.h b/arch/arm/include/asm/hardware/cache-l2x0.h
> index 4a6004a..967a808 100644
> --- a/arch/arm/include/asm/hardware/cache-l2x0.h
> +++ b/arch/arm/include/asm/hardware/cache-l2x0.h
> @@ -90,7 +90,14 @@
>
> ?#ifndef __ASSEMBLY__
> ?extern void __init l2x0_init(void __iomem *base, __u32 aux_val, __u32 aux_mask);
> +#if defined(CONFIG_CACHE_L2X0) && defined(CONFIG_OF)
> ?extern int l2x0_of_init(__u32 aux_val, __u32 aux_mask);
> +#else
> +static int l2x0_of_init(__u32 aux_val, __u32 aux_mask)
> +{
> + ? ? ? return -ENODEV;
> +}
> ?#endif
> +#endif /* __ASSEMBLY__ */
>
> ?#endif
> --
> 1.7.4.1

-barry

^ permalink raw reply	[flat|nested] 18+ messages in thread
* [PATCH 1/7] ARM: l2x0: add empty l2x0_of_init
  2011-09-01  3:36   ` Barry Song
@ 2011-09-01  3:58     ` Rob Herring
  0 siblings, 0 replies; 18+ messages in thread
From: Rob Herring @ 2011-09-01  3:58 UTC (permalink / raw)
  To: linux-arm-kernel

Barry,

On 08/31/2011 10:36 PM, Barry Song wrote:
> 2011/9/1 Rob Herring <robherring2@gmail.com>:
>> From: Rob Herring <rob.herring@calxeda.com>
>>
>> Add empty version of l2x0_of_init for when CONFIG_CACHE_L2X0 is not selected.
>>
>> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
> 
> Acked-by: Barry Song <21cnbao@gmail.com>
> 
Thanks.

> it seems most people use
> "
> #ifdef CONFIG_CACHE_L2X0
> ...
> l2x0 related codes
> ...
> #endif
> "
> or
> "
> obj-$(CONFIG_CACHE_L2X0) += xxx-l2x0.o
> "
> 
> to avoid l2x0 related codes compiled and linked into kernel.
> 
> but this patch provides another option. it is not bad too.
> 

The difference with existing platforms and l2x0_init is the ioremap or
static mapping and latency register setup for pl310 is outside the
function, so you still need an ifdef around all that. With l2x0_of_init,
all the setup is done inside the function, so having an empty version is
useful.

Rob

^ permalink raw reply	[flat|nested] 18+ messages in thread
* [PATCH v2 7/7] ARM: highbank: add suspend support
  2011-09-01  1:44 ` [PATCH v2 7/7] ARM: highbank: add suspend support Rob Herring
@ 2011-09-01 12:22   ` Shawn Guo
  2011-09-01 21:39     ` Rob Herring
  0 siblings, 1 reply; 18+ messages in thread
From: Shawn Guo @ 2011-09-01 12:22 UTC (permalink / raw)
  To: linux-arm-kernel

On Wed, Aug 31, 2011 at 08:44:06PM -0500, Rob Herring wrote:
> From: Rob Herring <rob.herring@calxeda.com>
> 
> Add the platform suspend ops for highbank.
> 
> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
> ---
> Changes in v2:
>  - s/a9_base_addr/scu_base_addr/
>  - use sysregs helper functions
>  - add __init to highbank_pm_init
> 
>  arch/arm/mach-highbank/Makefile |    1 +
>  arch/arm/mach-highbank/pm.c     |   55 +++++++++++++++++++++++++++++++++++++++
>  2 files changed, 56 insertions(+), 0 deletions(-)
>  create mode 100644 arch/arm/mach-highbank/pm.c
> 
> diff --git a/arch/arm/mach-highbank/Makefile b/arch/arm/mach-highbank/Makefile
> index df30b0d..daeb3d8 100644
> --- a/arch/arm/mach-highbank/Makefile
> +++ b/arch/arm/mach-highbank/Makefile
> @@ -3,3 +3,4 @@ obj-$(CONFIG_DEBUG_LL)			+= lluart.o
>  obj-$(CONFIG_SMP)			+= platsmp.o
>  obj-$(CONFIG_LOCAL_TIMERS)		+= localtimer.o
>  obj-$(CONFIG_HOTPLUG_CPU)		+= hotplug.o
> +obj-$(CONFIG_PM_SLEEP)			+= pm.o
> diff --git a/arch/arm/mach-highbank/pm.c b/arch/arm/mach-highbank/pm.c
> new file mode 100644
> index 0000000..33b3beb
> --- /dev/null
> +++ b/arch/arm/mach-highbank/pm.c
> @@ -0,0 +1,55 @@
> +/*
> + * Copyright 2011 Calxeda, Inc.
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms and conditions of the GNU General Public License,
> + * version 2, as published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope 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.
> + *
> + * You should have received a copy of the GNU General Public License along with
> + * this program.  If not, see <http://www.gnu.org/licenses/>.
> + */
> +
> +#include <linux/init.h>
> +#include <linux/io.h>
> +#include <linux/suspend.h>
> +
> +#include <asm/proc-fns.h>
> +#include <asm/smp_scu.h>
> +#include <asm/suspend.h>
> +
> +#include "core.h"
> +#include "sysregs.h"
> +
> +static int highbank_suspend_finish(unsigned long val)
> +{
> +	cpu_do_idle();
> +	return 0;
> +}
> +
> +static int highbank_pm_enter(suspend_state_t state)
> +{
> +	hignbank_set_pwr_suspend();
> +	highbank_set_cpu_jump(0, cpu_resume);
> +
> +	scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
> +	cpu_suspend(0, highbank_suspend_finish);
> +
Rob,

Just out of curiosity, how can you resume back without taking care of
GIC, L2 and SCU which will lose power during suspend?

Regards,
Shawn

> +	return 0;
> +}
> +
> +static const struct platform_suspend_ops highbank_pm_ops = {
> +	.enter = highbank_pm_enter,
> +	.valid = suspend_valid_only_mem,
> +};
> +
> +static int __init highbank_pm_init(void)
> +{
> +	suspend_set_ops(&highbank_pm_ops);
> +	return 0;
> +}
> +module_init(highbank_pm_init);
> -- 
> 1.7.4.1
> 
> 

^ permalink raw reply	[flat|nested] 18+ messages in thread
* [PATCH v2 0/7] Initial Calxeda Highbank support
  2011-09-01  1:43 [PATCH v2 0/7] Initial Calxeda Highbank support Rob Herring
                   ` (6 preceding siblings ...)
  2011-09-01  1:44 ` [PATCH v2 7/7] ARM: highbank: add suspend support Rob Herring
@ 2011-09-01 14:00 ` Jamie Iles
  2011-09-26 18:39 ` Rob Herring
  8 siblings, 0 replies; 18+ messages in thread
From: Jamie Iles @ 2011-09-01 14:00 UTC (permalink / raw)
  To: linux-arm-kernel

On Wed, Aug 31, 2011 at 08:43:59PM -0500, Rob Herring wrote:
> From: Rob Herring <rob.herring@calxeda.com>
> 
> This adds initial platform support for Calxeda's Highbank ARM SOC including
> SMP, hotplug, and suspend support. One new patch to add empty version of
> l2x0_of_init. Changes for v2 are listed in each patch.
> 
> Based on rmk's for-next branch with gpio.h and io.h clean-ups plus previously
> posted GIC devicetree binding support. The GIC patches are here:
> 
> http://lists.infradead.org/pipermail/linux-arm-kernel/2011-August/060570.html
> http://lists.infradead.org/pipermail/linux-arm-kernel/2011-August/060790.html
> http://lists.infradead.org/pipermail/linux-arm-kernel/2011-August/062735.html

Nice series!

Reviewed-by: Jamie Iles <jamie@jamieiles.com>

^ permalink raw reply	[flat|nested] 18+ messages in thread
* [PATCH v2 7/7] ARM: highbank: add suspend support
  2011-09-01 12:22   ` Shawn Guo
@ 2011-09-01 21:39     ` Rob Herring
  0 siblings, 0 replies; 18+ messages in thread
From: Rob Herring @ 2011-09-01 21:39 UTC (permalink / raw)
  To: linux-arm-kernel

Shawn,

On 09/01/2011 07:22 AM, Shawn Guo wrote:
> On Wed, Aug 31, 2011 at 08:44:06PM -0500, Rob Herring wrote:
>> From: Rob Herring <rob.herring@calxeda.com>
>>
>> Add the platform suspend ops for highbank.
>>
>> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
>> ---
>> Changes in v2:
>>  - s/a9_base_addr/scu_base_addr/
>>  - use sysregs helper functions
>>  - add __init to highbank_pm_init
>>
>>  arch/arm/mach-highbank/Makefile |    1 +
>>  arch/arm/mach-highbank/pm.c     |   55 +++++++++++++++++++++++++++++++++++++++
>>  2 files changed, 56 insertions(+), 0 deletions(-)
>>  create mode 100644 arch/arm/mach-highbank/pm.c
>>
>> diff --git a/arch/arm/mach-highbank/Makefile b/arch/arm/mach-highbank/Makefile
>> index df30b0d..daeb3d8 100644
>> --- a/arch/arm/mach-highbank/Makefile
>> +++ b/arch/arm/mach-highbank/Makefile
>> @@ -3,3 +3,4 @@ obj-$(CONFIG_DEBUG_LL)			+= lluart.o
>>  obj-$(CONFIG_SMP)			+= platsmp.o
>>  obj-$(CONFIG_LOCAL_TIMERS)		+= localtimer.o
>>  obj-$(CONFIG_HOTPLUG_CPU)		+= hotplug.o
>> +obj-$(CONFIG_PM_SLEEP)			+= pm.o
>> diff --git a/arch/arm/mach-highbank/pm.c b/arch/arm/mach-highbank/pm.c
>> new file mode 100644
>> index 0000000..33b3beb
>> --- /dev/null
>> +++ b/arch/arm/mach-highbank/pm.c
>> @@ -0,0 +1,55 @@
>> +/*
>> + * Copyright 2011 Calxeda, Inc.
>> + *
>> + * This program is free software; you can redistribute it and/or modify it
>> + * under the terms and conditions of the GNU General Public License,
>> + * version 2, as published by the Free Software Foundation.
>> + *
>> + * This program is distributed in the hope 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.
>> + *
>> + * You should have received a copy of the GNU General Public License along with
>> + * this program.  If not, see <http://www.gnu.org/licenses/>.
>> + */
>> +
>> +#include <linux/init.h>
>> +#include <linux/io.h>
>> +#include <linux/suspend.h>
>> +
>> +#include <asm/proc-fns.h>
>> +#include <asm/smp_scu.h>
>> +#include <asm/suspend.h>
>> +
>> +#include "core.h"
>> +#include "sysregs.h"
>> +
>> +static int highbank_suspend_finish(unsigned long val)
>> +{
>> +	cpu_do_idle();
>> +	return 0;
>> +}
>> +
>> +static int highbank_pm_enter(suspend_state_t state)
>> +{
>> +	hignbank_set_pwr_suspend();
>> +	highbank_set_cpu_jump(0, cpu_resume);
>> +
>> +	scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
>> +	cpu_suspend(0, highbank_suspend_finish);
>> +
> Rob,
> 
> Just out of curiosity, how can you resume back without taking care of
> GIC, L2 and SCU which will lose power during suspend?
> 

They are not powergated yet, so it's really just wfi ATM. The L2 and SCU
will be re-initialized by boot code. The GIC will need some save and
restore.

Rob

^ permalink raw reply	[flat|nested] 18+ messages in thread
* [PATCH v2 5/7] ARM: highbank: add SMP support
  2011-09-01  1:44 ` [PATCH v2 5/7] ARM: highbank: add SMP support Rob Herring
@ 2011-09-06  1:01   ` Shawn Guo
  2011-10-05 16:00     ` Rob Herring
  0 siblings, 1 reply; 18+ messages in thread
From: Shawn Guo @ 2011-09-06  1:01 UTC (permalink / raw)
  To: linux-arm-kernel

On Wed, Aug 31, 2011 at 08:44:04PM -0500, Rob Herring wrote:
> From: Rob Herring <rob.herring@calxeda.com>
> 
> This enables SMP support on highbank processor.
> 
> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
> ---
> Changes in v2:
>  - drop NULL check of scu_base
>  - use IPI #0 instead of #1 to boot secondary
>  - s/a9_base_addr/scu_base_addr/
>  - fix muliple mapping of twd registers
> 
>  arch/arm/Kconfig                    |    2 +-
>  arch/arm/mach-highbank/Makefile     |    2 +
>  arch/arm/mach-highbank/localtimer.c |   38 +++++++++++++++++
>  arch/arm/mach-highbank/platsmp.c    |   78 +++++++++++++++++++++++++++++++++++
>  4 files changed, 119 insertions(+), 1 deletions(-)
>  create mode 100644 arch/arm/mach-highbank/localtimer.c
>  create mode 100644 arch/arm/mach-highbank/platsmp.c
> 
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 9019a56..6d2add5 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -1372,7 +1372,7 @@ config SMP
>  	depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
>  		 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
>  		 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
> -		 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
> +		 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE || ARCH_HIGHBANK
>  	select USE_GENERIC_SMP_HELPERS
>  	select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
>  	help
> diff --git a/arch/arm/mach-highbank/Makefile b/arch/arm/mach-highbank/Makefile
> index 11d4010..311c0e8e 100644
> --- a/arch/arm/mach-highbank/Makefile
> +++ b/arch/arm/mach-highbank/Makefile
> @@ -1,2 +1,4 @@
>  obj-y					:= clock.o highbank.o system.o
>  obj-$(CONFIG_DEBUG_LL)			+= lluart.o
> +obj-$(CONFIG_SMP)			+= platsmp.o
> +obj-$(CONFIG_LOCAL_TIMERS)		+= localtimer.o
> diff --git a/arch/arm/mach-highbank/localtimer.c b/arch/arm/mach-highbank/localtimer.c
> new file mode 100644
> index 0000000..344ea29
> --- /dev/null
> +++ b/arch/arm/mach-highbank/localtimer.c
> @@ -0,0 +1,38 @@
> +/*
> + * Copyright 2010-2011 Calxeda, Inc.
> + * Based on localtimer.c, Copyright (C) 2002 ARM Ltd.
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms and conditions of the GNU General Public License,
> + * version 2, as published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope 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.
> + *
> + * You should have received a copy of the GNU General Public License along with
> + * this program.  If not, see <http://www.gnu.org/licenses/>.
> + */
> +#include <linux/init.h>
> +#include <linux/clockchips.h>
> +#include <linux/of.h>
> +#include <linux/of_address.h>
> +#include <linux/of_irq.h>
> +
> +#include <asm/smp_twd.h>
> +
> +/*
> + * Setup the local clock events for a CPU.
> + */
> +int __cpuinit local_timer_setup(struct clock_event_device *evt)
> +{
> +	struct device_node *np;
> +
> +	np = of_find_compatible_node(NULL, NULL, "arm,smp-twd");
> +	if (!twd_base)
> +		twd_base = of_iomap(np, 0);

WARN_ON(!twd_base)?

Regards,
Shawn

> +	evt->irq = irq_of_parse_and_map(np, 0);
> +	twd_timer_setup(evt);
> +	return 0;
> +}

^ permalink raw reply	[flat|nested] 18+ messages in thread
* [PATCH v2 0/7] Initial Calxeda Highbank support
  2011-09-01  1:43 [PATCH v2 0/7] Initial Calxeda Highbank support Rob Herring
                   ` (7 preceding siblings ...)
  2011-09-01 14:00 ` [PATCH v2 0/7] Initial Calxeda Highbank support Jamie Iles
@ 2011-09-26 18:39 ` Rob Herring
  2011-09-30 20:31   ` Arnd Bergmann
  8 siblings, 1 reply; 18+ messages in thread
From: Rob Herring @ 2011-09-26 18:39 UTC (permalink / raw)
  To: linux-arm-kernel

Arnd,

On 08/31/2011 08:43 PM, Rob Herring wrote:
> From: Rob Herring <rob.herring@calxeda.com>
> 
> This adds initial platform support for Calxeda's Highbank ARM SOC including
> SMP, hotplug, and suspend support. One new patch to add empty version of
> l2x0_of_init. Changes for v2 are listed in each patch.
> 
> Based on rmk's for-next branch with gpio.h and io.h clean-ups plus previously
> posted GIC devicetree binding support. The GIC patches are here:
> 
> http://lists.infradead.org/pipermail/linux-arm-kernel/2011-August/060570.html
> http://lists.infradead.org/pipermail/linux-arm-kernel/2011-August/060790.html
> http://lists.infradead.org/pipermail/linux-arm-kernel/2011-August/062735.html
> 
> Rob
> 
> Martin Bogomolni (1):
>   ARM: highbank: Add cpu hotplug support
> 
> Rob Herring (6):
>   ARM: l2x0: add empty l2x0_of_init
>   ARM: highbank: add devicetree source
>   ARM: add Highbank core platform support
>   MAINTAINERS: add Calxeda Highbank ARM platform
>   ARM: highbank: add SMP support
>   ARM: highbank: add suspend support
> 
>  Documentation/devicetree/bindings/arm/calxeda.txt |    8 +
>  MAINTAINERS                                       |    6 +
>  arch/arm/Kconfig                                  |   18 ++-
>  arch/arm/Makefile                                 |    1 +
>  arch/arm/boot/dts/highbank.dts                    |  224 +++++++++++++++++++++
>  arch/arm/include/asm/hardware/cache-l2x0.h        |    7 +
>  arch/arm/mach-highbank/Makefile                   |    6 +
>  arch/arm/mach-highbank/Makefile.boot              |    1 +
>  arch/arm/mach-highbank/clock.c                    |   62 ++++++
>  arch/arm/mach-highbank/core.h                     |    9 +
>  arch/arm/mach-highbank/highbank.c                 |  150 ++++++++++++++
>  arch/arm/mach-highbank/hotplug.c                  |   56 +++++
>  arch/arm/mach-highbank/include/mach/debug-macro.S |   19 ++
>  arch/arm/mach-highbank/include/mach/entry-macro.S |    7 +
>  arch/arm/mach-highbank/include/mach/gpio.h        |    1 +
>  arch/arm/mach-highbank/include/mach/io.h          |    7 +
>  arch/arm/mach-highbank/include/mach/irqs.h        |    6 +
>  arch/arm/mach-highbank/include/mach/memory.h      |    1 +
>  arch/arm/mach-highbank/include/mach/system.h      |   26 +++
>  arch/arm/mach-highbank/include/mach/timex.h       |    6 +
>  arch/arm/mach-highbank/include/mach/uncompress.h  |    9 +
>  arch/arm/mach-highbank/include/mach/vmalloc.h     |    6 +
>  arch/arm/mach-highbank/lluart.c                   |   34 +++
>  arch/arm/mach-highbank/localtimer.c               |   38 ++++
>  arch/arm/mach-highbank/platsmp.c                  |   78 +++++++
>  arch/arm/mach-highbank/pm.c                       |   55 +++++
>  arch/arm/mach-highbank/sysregs.h                  |   52 +++++
>  arch/arm/mach-highbank/system.c                   |   33 +++
>  arch/arm/mm/Kconfig                               |    2 +-
>  29 files changed, 926 insertions(+), 2 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/arm/calxeda.txt
>  create mode 100644 arch/arm/boot/dts/highbank.dts
>  create mode 100644 arch/arm/mach-highbank/Makefile
>  create mode 100644 arch/arm/mach-highbank/Makefile.boot
>  create mode 100644 arch/arm/mach-highbank/clock.c
>  create mode 100644 arch/arm/mach-highbank/core.h
>  create mode 100644 arch/arm/mach-highbank/highbank.c
>  create mode 100644 arch/arm/mach-highbank/hotplug.c
>  create mode 100644 arch/arm/mach-highbank/include/mach/debug-macro.S
>  create mode 100644 arch/arm/mach-highbank/include/mach/entry-macro.S
>  create mode 100644 arch/arm/mach-highbank/include/mach/gpio.h
>  create mode 100644 arch/arm/mach-highbank/include/mach/io.h
>  create mode 100644 arch/arm/mach-highbank/include/mach/irqs.h
>  create mode 100644 arch/arm/mach-highbank/include/mach/memory.h
>  create mode 100644 arch/arm/mach-highbank/include/mach/system.h
>  create mode 100644 arch/arm/mach-highbank/include/mach/timex.h
>  create mode 100644 arch/arm/mach-highbank/include/mach/uncompress.h
>  create mode 100644 arch/arm/mach-highbank/include/mach/vmalloc.h
>  create mode 100644 arch/arm/mach-highbank/lluart.c
>  create mode 100644 arch/arm/mach-highbank/localtimer.c
>  create mode 100644 arch/arm/mach-highbank/platsmp.c
>  create mode 100644 arch/arm/mach-highbank/pm.c
>  create mode 100644 arch/arm/mach-highbank/sysregs.h
>  create mode 100644 arch/arm/mach-highbank/system.c
> 

Any comments on v2?

The GIC binding series seems to be firming up. As myself and several
others are dependent on it, I was planning to send both through arm-soc
tree as 2 pulls. I also have some dependencies on rmk's tree with l2x0
DT support and mach header clean-ups.

Rob

^ permalink raw reply	[flat|nested] 18+ messages in thread
* [PATCH v2 0/7] Initial Calxeda Highbank support
  2011-09-26 18:39 ` Rob Herring
@ 2011-09-30 20:31   ` Arnd Bergmann
  0 siblings, 0 replies; 18+ messages in thread
From: Arnd Bergmann @ 2011-09-30 20:31 UTC (permalink / raw)
  To: linux-arm-kernel

On Monday 26 September 2011, Rob Herring wrote:
> Any comments on v2?
> 
> The GIC binding series seems to be firming up. As myself and several
> others are dependent on it, I was planning to send both through arm-soc
> tree as 2 pulls. I also have some dependencies on rmk's tree with l2x0
> DT support and mach header clean-ups.

Looks all good as far as I can tell. Please send the pull requests.

	Arnd

^ permalink raw reply	[flat|nested] 18+ messages in thread
* [PATCH v2 5/7] ARM: highbank: add SMP support
  2011-09-06  1:01   ` Shawn Guo
@ 2011-10-05 16:00     ` Rob Herring
  2011-10-07 12:40       ` Shawn Guo
  0 siblings, 1 reply; 18+ messages in thread
From: Rob Herring @ 2011-10-05 16:00 UTC (permalink / raw)
  To: linux-arm-kernel

Shawn,

On 09/05/2011 08:01 PM, Shawn Guo wrote:
> On Wed, Aug 31, 2011 at 08:44:04PM -0500, Rob Herring wrote:
>> From: Rob Herring <rob.herring@calxeda.com>
>>
>> This enables SMP support on highbank processor.
>>
>> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
>> ---
>> Changes in v2:
>>  - drop NULL check of scu_base
>>  - use IPI #0 instead of #1 to boot secondary
>>  - s/a9_base_addr/scu_base_addr/
>>  - fix muliple mapping of twd registers
>>
>>  arch/arm/Kconfig                    |    2 +-
>>  arch/arm/mach-highbank/Makefile     |    2 +
>>  arch/arm/mach-highbank/localtimer.c |   38 +++++++++++++++++
>>  arch/arm/mach-highbank/platsmp.c    |   78 +++++++++++++++++++++++++++++++++++
>>  4 files changed, 119 insertions(+), 1 deletions(-)
>>  create mode 100644 arch/arm/mach-highbank/localtimer.c
>>  create mode 100644 arch/arm/mach-highbank/platsmp.c
>>
>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
>> index 9019a56..6d2add5 100644
>> --- a/arch/arm/Kconfig
>> +++ b/arch/arm/Kconfig
>> @@ -1372,7 +1372,7 @@ config SMP
>>  	depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
>>  		 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
>>  		 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
>> -		 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
>> +		 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE || ARCH_HIGHBANK
>>  	select USE_GENERIC_SMP_HELPERS
>>  	select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
>>  	help
>> diff --git a/arch/arm/mach-highbank/Makefile b/arch/arm/mach-highbank/Makefile
>> index 11d4010..311c0e8e 100644
>> --- a/arch/arm/mach-highbank/Makefile
>> +++ b/arch/arm/mach-highbank/Makefile
>> @@ -1,2 +1,4 @@
>>  obj-y					:= clock.o highbank.o system.o
>>  obj-$(CONFIG_DEBUG_LL)			+= lluart.o
>> +obj-$(CONFIG_SMP)			+= platsmp.o
>> +obj-$(CONFIG_LOCAL_TIMERS)		+= localtimer.o
>> diff --git a/arch/arm/mach-highbank/localtimer.c b/arch/arm/mach-highbank/localtimer.c
>> new file mode 100644
>> index 0000000..344ea29
>> --- /dev/null
>> +++ b/arch/arm/mach-highbank/localtimer.c
>> @@ -0,0 +1,38 @@
>> +/*
>> + * Copyright 2010-2011 Calxeda, Inc.
>> + * Based on localtimer.c, Copyright (C) 2002 ARM Ltd.
>> + *
>> + * This program is free software; you can redistribute it and/or modify it
>> + * under the terms and conditions of the GNU General Public License,
>> + * version 2, as published by the Free Software Foundation.
>> + *
>> + * This program is distributed in the hope 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.
>> + *
>> + * You should have received a copy of the GNU General Public License along with
>> + * this program.  If not, see <http://www.gnu.org/licenses/>.
>> + */
>> +#include <linux/init.h>
>> +#include <linux/clockchips.h>
>> +#include <linux/of.h>
>> +#include <linux/of_address.h>
>> +#include <linux/of_irq.h>
>> +
>> +#include <asm/smp_twd.h>
>> +
>> +/*
>> + * Setup the local clock events for a CPU.
>> + */
>> +int __cpuinit local_timer_setup(struct clock_event_device *evt)
>> +{
>> +	struct device_node *np;
>> +
>> +	np = of_find_compatible_node(NULL, NULL, "arm,smp-twd");
>> +	if (!twd_base)
>> +		twd_base = of_iomap(np, 0);
> 
> WARN_ON(!twd_base)?
> 

Okay, will add it. Can I add your Reviewed-by for the series?

Rob

^ permalink raw reply	[flat|nested] 18+ messages in thread
* [PATCH v2 5/7] ARM: highbank: add SMP support
  2011-10-05 16:00     ` Rob Herring
@ 2011-10-07 12:40       ` Shawn Guo
  0 siblings, 0 replies; 18+ messages in thread
From: Shawn Guo @ 2011-10-07 12:40 UTC (permalink / raw)
  To: linux-arm-kernel

On Wed, Oct 05, 2011 at 11:00:16AM -0500, Rob Herring wrote:
> Shawn,
> 
> On 09/05/2011 08:01 PM, Shawn Guo wrote:
> > On Wed, Aug 31, 2011 at 08:44:04PM -0500, Rob Herring wrote:
> >> From: Rob Herring <rob.herring@calxeda.com>
> >>
> >> This enables SMP support on highbank processor.
> >>
> >> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
> >> ---
> >> Changes in v2:
> >>  - drop NULL check of scu_base
> >>  - use IPI #0 instead of #1 to boot secondary
> >>  - s/a9_base_addr/scu_base_addr/
> >>  - fix muliple mapping of twd registers
> >>
> >>  arch/arm/Kconfig                    |    2 +-
> >>  arch/arm/mach-highbank/Makefile     |    2 +
> >>  arch/arm/mach-highbank/localtimer.c |   38 +++++++++++++++++
> >>  arch/arm/mach-highbank/platsmp.c    |   78 +++++++++++++++++++++++++++++++++++
> >>  4 files changed, 119 insertions(+), 1 deletions(-)
> >>  create mode 100644 arch/arm/mach-highbank/localtimer.c
> >>  create mode 100644 arch/arm/mach-highbank/platsmp.c
> >>
> >> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> >> index 9019a56..6d2add5 100644
> >> --- a/arch/arm/Kconfig
> >> +++ b/arch/arm/Kconfig
> >> @@ -1372,7 +1372,7 @@ config SMP
> >>  	depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
> >>  		 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
> >>  		 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
> >> -		 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
> >> +		 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE || ARCH_HIGHBANK
> >>  	select USE_GENERIC_SMP_HELPERS
> >>  	select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
> >>  	help
> >> diff --git a/arch/arm/mach-highbank/Makefile b/arch/arm/mach-highbank/Makefile
> >> index 11d4010..311c0e8e 100644
> >> --- a/arch/arm/mach-highbank/Makefile
> >> +++ b/arch/arm/mach-highbank/Makefile
> >> @@ -1,2 +1,4 @@
> >>  obj-y					:= clock.o highbank.o system.o
> >>  obj-$(CONFIG_DEBUG_LL)			+= lluart.o
> >> +obj-$(CONFIG_SMP)			+= platsmp.o
> >> +obj-$(CONFIG_LOCAL_TIMERS)		+= localtimer.o
> >> diff --git a/arch/arm/mach-highbank/localtimer.c b/arch/arm/mach-highbank/localtimer.c
> >> new file mode 100644
> >> index 0000000..344ea29
> >> --- /dev/null
> >> +++ b/arch/arm/mach-highbank/localtimer.c
> >> @@ -0,0 +1,38 @@
> >> +/*
> >> + * Copyright 2010-2011 Calxeda, Inc.
> >> + * Based on localtimer.c, Copyright (C) 2002 ARM Ltd.
> >> + *
> >> + * This program is free software; you can redistribute it and/or modify it
> >> + * under the terms and conditions of the GNU General Public License,
> >> + * version 2, as published by the Free Software Foundation.
> >> + *
> >> + * This program is distributed in the hope 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.
> >> + *
> >> + * You should have received a copy of the GNU General Public License along with
> >> + * this program.  If not, see <http://www.gnu.org/licenses/>.
> >> + */
> >> +#include <linux/init.h>
> >> +#include <linux/clockchips.h>
> >> +#include <linux/of.h>
> >> +#include <linux/of_address.h>
> >> +#include <linux/of_irq.h>
> >> +
> >> +#include <asm/smp_twd.h>
> >> +
> >> +/*
> >> + * Setup the local clock events for a CPU.
> >> + */
> >> +int __cpuinit local_timer_setup(struct clock_event_device *evt)
> >> +{
> >> +	struct device_node *np;
> >> +
> >> +	np = of_find_compatible_node(NULL, NULL, "arm,smp-twd");
> >> +	if (!twd_base)
> >> +		twd_base = of_iomap(np, 0);
> > 
> > WARN_ON(!twd_base)?
> > 
> 
> Okay, will add it. Can I add your Reviewed-by for the series?
> 
Yes, if you'd like to ;)

-- 
Regards,
Shawn

^ permalink raw reply	[flat|nested] 18+ messages in thread
end of thread, other threads:[~2011-10-07 12:40 UTC | newest]

Thread overview: 18+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2011-09-01  1:43 [PATCH v2 0/7] Initial Calxeda Highbank support Rob Herring
2011-09-01  1:44 ` [PATCH 1/7] ARM: l2x0: add empty l2x0_of_init Rob Herring
2011-09-01  3:36   ` Barry Song
2011-09-01  3:58     ` Rob Herring
2011-09-01  1:44 ` [PATCH v2 2/7] ARM: highbank: add devicetree source Rob Herring
2011-09-01  1:44 ` [PATCH v2 3/7] ARM: add Highbank core platform support Rob Herring
2011-09-01  1:44 ` [PATCH v2 4/7] MAINTAINERS: add Calxeda Highbank ARM platform Rob Herring
2011-09-01  1:44 ` [PATCH v2 5/7] ARM: highbank: add SMP support Rob Herring
2011-09-06  1:01   ` Shawn Guo
2011-10-05 16:00     ` Rob Herring
2011-10-07 12:40       ` Shawn Guo
2011-09-01  1:44 ` [PATCH v2 6/7] ARM: highbank: Add cpu hotplug support Rob Herring
2011-09-01  1:44 ` [PATCH v2 7/7] ARM: highbank: add suspend support Rob Herring
2011-09-01 12:22   ` Shawn Guo
2011-09-01 21:39     ` Rob Herring
2011-09-01 14:00 ` [PATCH v2 0/7] Initial Calxeda Highbank support Jamie Iles
2011-09-26 18:39 ` Rob Herring
2011-09-30 20:31   ` Arnd Bergmann

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