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Add platform support for LSI AXM55xx

PATCH In review Anders Berg 4 participants 18 messages Apr 24, 2014 – May 13, 2014

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#0 lore raw

v2 cover Add platform support for LSI AXM55xx

Hi,

Verion 2 of this series to introduces basic platform support for the LSI AXM5516 SoC. When this is in shape, could it be merged into the arm-soc tree?

Changes:

v2:
* Rebased to arm-soc/for-next
* Removed redundant HAVE_SMP and ARCH_WANT_OPTIONAL_GPIOLIB from Kconfig
* Use CPU_METHOD_OF_DECLARE to register smp_operations
* Rework smp operations to avoid holding pen and custom headsmp.S
* Clean up board file
* Corrected clock properties for arm,sp804 dts node.
* Changed machine compatible strings to include full model number.
* Break out clk-axxia driver as separate patch
* Removed Makefile.boot

Anders Berg (6):
ARM: Add platform support for LSI AXM55xx SoC
clk: Add clock driver for AXM55xx SoC
ARM: dts: Device tree for AXM55xx.
ARM: axxia: Adding defconfig for AXM55xx
power: reset: Add Axxia system reset driver
ARM: dts: axxia: Add reset controller

 Documentation/devicetree/bindings/arm/axxia.txt    |  12 +
 .../devicetree/bindings/clock/clk-axxia.txt        |  88 ++++++
 .../bindings/power_supply/axxia-reset.txt          |  20 ++
 arch/arm/Kconfig                                   |   2 +
 arch/arm/Makefile                                  |   2 +
 arch/arm/boot/dts/Makefile                         |   1 +
 arch/arm/boot/dts/axm5516-amarillo.dts             |  51 ++++
 arch/arm/boot/dts/axm5516-cpus.dtsi                | 204 ++++++++++++++
 arch/arm/boot/dts/axm55xx.dtsi                     | 311 +++++++++++++++++++++
 arch/arm/configs/axm55xx_defconfig                 | 248 ++++++++++++++++
 arch/arm/mach-axxia/Kconfig                        |  16 ++
 arch/arm/mach-axxia/Makefile                       |   2 +
 arch/arm/mach-axxia/axxia.c                        |  28 ++
 arch/arm/mach-axxia/platsmp.c                      |  89 ++++++
 drivers/clk/Makefile                               |   1 +
 drivers/clk/clk-axxia.c                            | 281 +++++++++++++++++++
 drivers/power/reset/Kconfig                        |   8 +
 drivers/power/reset/Makefile                       |   1 +
 drivers/power/reset/axxia-reset.c                  |  97 +++++++
 19 files changed, 1462 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/axxia.txt
 create mode 100644 Documentation/devicetree/bindings/clock/clk-axxia.txt
 create mode 100644 Documentation/devicetree/bindings/power_supply/axxia-reset.txt
 create mode 100644 arch/arm/boot/dts/axm5516-amarillo.dts
 create mode 100644 arch/arm/boot/dts/axm5516-cpus.dtsi
 create mode 100644 arch/arm/boot/dts/axm55xx.dtsi
 create mode 100644 arch/arm/configs/axm55xx_defconfig
 create mode 100644 arch/arm/mach-axxia/Kconfig
 create mode 100644 arch/arm/mach-axxia/Makefile
 create mode 100644 arch/arm/mach-axxia/axxia.c
 create mode 100644 arch/arm/mach-axxia/platsmp.c
 create mode 100644 drivers/clk/clk-axxia.c
 create mode 100644 drivers/power/reset/axxia-reset.c
Signature · 1 line
1.8.3.2
#1 lore raw

PATCH v2 1/6 ARM: Add platform support for LSI AXM55xx SoC

The AXM55xx family consists of devices that may contain up to 16 ARM Cortex-A15 cores (in a 4x4 cluster configuration). The cores within each cluster share an L2 cache, and the clusters are connected to each other via a CCN-504 cache coherent interconnect.

This machine requires CONFIG_ARM_LPAE enabled as all peripherals are located above 4GB in the memory map.

---
 Documentation/devicetree/bindings/arm/axxia.txt | 12 ++++
 arch/arm/Kconfig                                |  2 +
 arch/arm/Makefile                               |  2 +
 arch/arm/mach-axxia/Kconfig                     | 16 +++++
 arch/arm/mach-axxia/Makefile                    |  2 +
 arch/arm/mach-axxia/axxia.c                     | 28 ++++++++
 arch/arm/mach-axxia/platsmp.c                   | 89 +++++++++++++++++++++++++
 7 files changed, 151 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/axxia.txt
 create mode 100644 arch/arm/mach-axxia/Kconfig
 create mode 100644 arch/arm/mach-axxia/Makefile
 create mode 100644 arch/arm/mach-axxia/axxia.c
 create mode 100644 arch/arm/mach-axxia/platsmp.c
Documentation/devicetree/bindings/arm/axxia.txt new file +12 -0
new file mode 100644
index 0000000..7b4ef9c
@@ -0,0 +1,12 @@
+Axxia AXM55xx device tree bindings
+
+Boards using the AXM55xx SoC need to have the following properties:
+
+Required root node property:
+
+  - compatible = "lsi,axm5516"
+
+Boards:
+
+  LSI AXM5516 Validation board (Amarillo)
+	compatible = "lsi,axm5516-amarillo", "lsi,axm5516"
arch/arm/Kconfig +2 -0
index b4935db..cc90841 100644
@@ -953,6 +953,8 @@ source "arch/arm/mach-mvebu/Kconfig"
 
 source "arch/arm/mach-at91/Kconfig"
 
+source "arch/arm/mach-axxia/Kconfig"
+
 source "arch/arm/mach-bcm/Kconfig"
 
 source "arch/arm/mach-berlin/Kconfig"
arch/arm/Makefile +2 -0
index 41c1931..6721fab 100644
@@ -138,10 +138,12 @@ endif
 textofs-$(CONFIG_ARCH_MSM7X30) := 0x00208000
 textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000
 textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000
+textofs-$(CONFIG_ARCH_AXXIA) := 0x00308000
 
 # Machine directory name.  This list is sorted alphanumerically
 # by CONFIG_* macro name.
 machine-$(CONFIG_ARCH_AT91)		+= at91
+machine-$(CONFIG_ARCH_AXXIA)		+= axxia
 machine-$(CONFIG_ARCH_BCM)		+= bcm
 machine-$(CONFIG_ARCH_BERLIN)		+= berlin
 machine-$(CONFIG_ARCH_CLPS711X)		+= clps711x
arch/arm/mach-axxia/Kconfig new file +16 -0
new file mode 100644
index 0000000..8c308fd
@@ -0,0 +1,16 @@
+config ARCH_AXXIA
+	bool "LSI Axxia platforms" if (ARCH_MULTI_V7 && ARM_LPAE)
+	select ARM_GIC
+	select MFD_SYSCON
+	select ARM_AMBA
+	select HAVE_ARM_ARCH_TIMER
+	select ARM_TIMER_SP804
+	select ZONE_DMA
+	select ARCH_DMA_ADDR_T_64BIT
+	select MIGHT_HAVE_PCI
+	select PCI_DOMAINS if PCI
+	help
+	  This enables support for the LSI Axxia devices.
+
+	  The LSI Axxia platforms require a Flattened Device Tree to be passed
+	  to the kernel.
arch/arm/mach-axxia/Makefile new file +2 -0
new file mode 100644
index 0000000..ec4f68b
@@ -0,0 +1,2 @@
+obj-y				+= axxia.o
+obj-$(CONFIG_SMP)		+= platsmp.o
arch/arm/mach-axxia/axxia.c new file +28 -0
new file mode 100644
index 0000000..19e5a1d
@@ -0,0 +1,28 @@
+/*
+ * Support for the LSI Axxia SoC devices based on ARM cores.
+ *
+ * Copyright (C) 2012 LSI
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#include <linux/init.h>
+#include <asm/mach/arch.h>
+
+static const char *axxia_dt_match[] __initconst = {
+	"lsi,axm5516",
+	"lsi,axm5516-sim",
+	"lsi,axm5516-emu",
+	NULL
+};
+
+DT_MACHINE_START(AXXIA_DT, "LSI Axxia AXM55XX")
+	.dt_compat = axxia_dt_match,
+MACHINE_END
arch/arm/mach-axxia/platsmp.c new file +89 -0

89 lines not on this page · raw message

Signature · 1 line
1.8.3.2
#2 lore raw

Re: [PATCH v2 1/6] ARM: Add platform support for LSI AXM55xx SoC

Quoted 7 lines · Anders Berg
arch/arm/mach-axxia/Kconfig new file +1 -0
new file mode 100644
index 0000000..8c308fd
@@ -0,0 +1,16 @@
+config ARCH_AXXIA

arch/arm/mach-axxia/Kconfig line 11

Quoted 10 lines
arch/arm/mach-axxia/Kconfig new file +10 -0
+	bool "LSI Axxia platforms" if (ARCH_MULTI_V7 && ARM_LPAE)
+	select ARM_GIC
+	select MFD_SYSCON
+	select ARM_AMBA
+	select HAVE_ARM_ARCH_TIMER
+	select ARM_TIMER_SP804
+	select ZONE_DMA
+	select ARCH_DMA_ADDR_T_64BIT
+	select MIGHT_HAVE_PCI
+	select PCI_DOMAINS if PCI

Please sort alphabetically.

Quoted 11 lines
arch/arm/mach-axxia/Kconfig new file +11 -0
+static int axxia_boot_secondary(unsigned int cpu, struct task_struct *idle)
+{
+	struct device_node *syscon_np;
+	void __iomem *syscon;
+	u32 tmp;
+
+	syscon_np = of_find_compatible_node(NULL, NULL, "lsi,axxia-syscon");
+	if (!syscon_np)
+		return -ENOENT;
+
+	syscon = of_iomap(syscon_np, 0);

arch/arm/mach-axxia/Kconfig

Quoted 10 lines
arch/arm/mach-axxia/Kconfig new file +10 -0
+	if (!syscon)
+		return -ENOMEM;
+
+	tmp = readl(syscon + SC_RST_CPU_HOLD);
+	writel(0xab, syscon + SC_CRIT_WRITE_KEY);
+	tmp &= ~(1 << cpu);
+	writel(tmp, syscon + SC_RST_CPU_HOLD);
+
+	return 0;
+}

This is much better, thanks.

Signature · 2 lines
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#3 lore raw

PATCH v2 2/6 clk: Add clock driver for AXM55xx SoC

In reply to Anders Berg

Add clk driver to support clock blocks found on the AXM55xx devices. The driver provides clock implementations for three different types of clock devices on the AXM55xx device: PLL clock, a clock divider and a clock mux.

---
 .../devicetree/bindings/clock/clk-axxia.txt        |  88 +++++++
 drivers/clk/Makefile                               |   1 +
 drivers/clk/clk-axxia.c                            | 281 +++++++++++++++++++++
 3 files changed, 370 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/clk-axxia.txt
 create mode 100644 drivers/clk/clk-axxia.c
Documentation/devicetree/bindings/clock/clk-axxia.txt new file +88 -0
new file mode 100644
index 0000000..94eb840
@@ -0,0 +1,88 @@
+* Axxia clock driver bindings
+
+This document contains bindings for the Axxia PLL, clock divider and mux. The
+binding uses the common clock binding found in:
+
+	Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+* Axxia PLL
+
+Required properties:
+- #clock-cells : shall be set to 0.
+- compatible : shall be "lsi,axxia-pll-clock"
+- clocks : parent clock phandle
+- reg - specifies PLL control registers
+
+Optional properties:
+- clock-output-names : From common clock binding.
+
+Example:
+
+	clk_ref0: clk_ref0 {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <125000000>;
+	};
+
+	clk_cpu_pll: clk_cpu_pll at 2010022000 {
+		compatible = "lsi,axxia-pll-clock";
+		#clock-cells = <0>;
+		clocks = <&clk_ref0>;
+		clock-output-names = "clk_cpu_pll";
+		reg = <0x20 0x10022000 0 0x2c>;
+	};
+
+
+* Axxia clock divider
+
+Required properties:
+- #clock-cells : shall be set to 0.
+- compatible : shall be "lsi,axxia-div-clock"
+- clocks : parent clock phandle
+- reg - clock divider control register
+- lsi,bit-shift : bit position of the divider control field.
+- lsi,bit-mask : width of the divider control field.
+
+Optional properties:
+- clock-output-names : From common clock binding.
+
+Example:
+
+	clk_cpu_div: cpu {
+		compatible = "lsi,axxia-div-clock";
+		#clock-cells = <0>;
+		clocks = <&clk_cpu_pll>;
+		clock-output-names = "clk_cpu_div";
+		reg = <0x20 0x10030008 0 0x4>;
+		lsi,bit-shift = <0>;
+		lsi,bit-width = <4>;
+	};
+
+
+* Axxia clock mux
+
+Required properties:
+- #clock-cells : shall be set to 0.
+- compatible : shall be "lsi,axxia-mux-clock"
+- clocks : phandle of parent clocks (max 4)
+- reg - clock divider control register
+- lsi,bit-shift : bit position of the divider control field.
+- lsi,bit-mask : width of the divider control field.
+
+Optional properties:
+- clock-output-names : From common clock binding.
+
+Example:
+
+	clk_cpu: clk_cpu0 at 2010030000 {
+		compatible = "lsi,axxia-mux-clock";
+		#clock-cells = <0>;
+		clocks = <&clk_ref0>,
+			 <&clk_cpu_pll>,
+			 <&clk_cpu_div>,
+			 <&clk_cpu_div>;
+		clock-output-names = "clk_cpu";
+		reg = <0x20 0x10030000 0 0x4>;
+		lsi,bit-shift = <0>;
+		lsi,bit-width = <2>;
+	};
drivers/clk/Makefile +1 -0
index 88af4a3..a9d0626 100644
@@ -12,6 +12,7 @@ obj-$(CONFIG_COMMON_CLK)	+= clk-composite.o
 # hardware specific clock types
 # please keep this section sorted lexicographically by file/directory path name
 obj-$(CONFIG_COMMON_CLK_AXI_CLKGEN)	+= clk-axi-clkgen.o
+obj-$(CONFIG_ARCH_AXXIA)		+= clk-axxia.o
 obj-$(CONFIG_ARCH_BCM2835)		+= clk-bcm2835.o
 obj-$(CONFIG_ARCH_EFM32)		+= clk-efm32gg.o
 obj-$(CONFIG_ARCH_HIGHBANK)		+= clk-highbank.o
drivers/clk/clk-axxia.c new file +281 -0

281 lines not on this page · raw message

Signature · 1 line
1.8.3.2
#4 lore raw

Re: [PATCH v2 2/6] clk: Add clock driver for AXM55xx SoC

Hi Mike,

Any comments on this..? Could you take this upstream through your clk tree?

/Anders

Quoted 409 lines · Anders Berg

Add clk driver to support clock blocks found on the AXM55xx devices. The driver provides clock implementations for three different types of clock devices on the AXM55xx device: PLL clock, a clock divider and a clock mux.

---
 .../devicetree/bindings/clock/clk-axxia.txt        |  88 +++++++
 drivers/clk/Makefile                               |   1 +
 drivers/clk/clk-axxia.c                            | 281 +++++++++++++++++++++
 3 files changed, 370 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/clk-axxia.txt
 create mode 100644 drivers/clk/clk-axxia.c
Documentation/devicetree/bindings/clock/clk-axxia.txt new file +88 -0
new file mode 100644
index 0000000..94eb840
@@ -0,0 +1,88 @@
+* Axxia clock driver bindings
+
+This document contains bindings for the Axxia PLL, clock divider and mux. The
+binding uses the common clock binding found in:
+
+       Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+* Axxia PLL
+
+Required properties:
+- #clock-cells : shall be set to 0.
+- compatible : shall be "lsi,axxia-pll-clock"
+- clocks : parent clock phandle
+- reg - specifies PLL control registers
+
+Optional properties:
+- clock-output-names : From common clock binding.
+
+Example:
+
+       clk_ref0: clk_ref0 {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <125000000>;
+       };
+
+       clk_cpu_pll: clk_cpu_pll at 2010022000 {
+               compatible = "lsi,axxia-pll-clock";
+               #clock-cells = <0>;
+               clocks = <&clk_ref0>;
+               clock-output-names = "clk_cpu_pll";
+               reg = <0x20 0x10022000 0 0x2c>;
+       };
+
+
+* Axxia clock divider
+
+Required properties:
+- #clock-cells : shall be set to 0.
+- compatible : shall be "lsi,axxia-div-clock"
+- clocks : parent clock phandle
+- reg - clock divider control register
+- lsi,bit-shift : bit position of the divider control field.
+- lsi,bit-mask : width of the divider control field.
+
+Optional properties:
+- clock-output-names : From common clock binding.
+
+Example:
+
+       clk_cpu_div: cpu {
+               compatible = "lsi,axxia-div-clock";
+               #clock-cells = <0>;
+               clocks = <&clk_cpu_pll>;
+               clock-output-names = "clk_cpu_div";
+               reg = <0x20 0x10030008 0 0x4>;
+               lsi,bit-shift = <0>;
+               lsi,bit-width = <4>;
+       };
+
+
+* Axxia clock mux
+
+Required properties:
+- #clock-cells : shall be set to 0.
+- compatible : shall be "lsi,axxia-mux-clock"
+- clocks : phandle of parent clocks (max 4)
+- reg - clock divider control register
+- lsi,bit-shift : bit position of the divider control field.
+- lsi,bit-mask : width of the divider control field.
+
+Optional properties:
+- clock-output-names : From common clock binding.
+
+Example:
+
+       clk_cpu: clk_cpu0 at 2010030000 {
+               compatible = "lsi,axxia-mux-clock";
+               #clock-cells = <0>;
+               clocks = <&clk_ref0>,
+                        <&clk_cpu_pll>,
+                        <&clk_cpu_div>,
+                        <&clk_cpu_div>;
+               clock-output-names = "clk_cpu";
+               reg = <0x20 0x10030000 0 0x4>;
+               lsi,bit-shift = <0>;
+               lsi,bit-width = <2>;
+       };
drivers/clk/Makefile +1 -0
index 88af4a3..a9d0626 100644
@@ -12,6 +12,7 @@ obj-$(CONFIG_COMMON_CLK)      += clk-composite.o
 # hardware specific clock types
 # please keep this section sorted lexicographically by file/directory path name
 obj-$(CONFIG_COMMON_CLK_AXI_CLKGEN)    += clk-axi-clkgen.o
+obj-$(CONFIG_ARCH_AXXIA)               += clk-axxia.o
 obj-$(CONFIG_ARCH_BCM2835)             += clk-bcm2835.o
 obj-$(CONFIG_ARCH_EFM32)               += clk-efm32gg.o
 obj-$(CONFIG_ARCH_HIGHBANK)            += clk-highbank.o
drivers/clk/clk-axxia.c new file +281 -1
new file mode 100644
index 0000000..996b8f2
@@ -0,0 +1,281 @@
+/*
+ * arch/arm/mach-axxia/clock.c
+ *
+ * Provides clock implementations for three different types of clock devices on
+ * the Axxia device: PLL clock, a clock divider and a clock mux.
+ *
+ * Copyright (C) 2012 LSI
+ *
+ * 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.
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/clk-provider.h>
+
+
+static void __iomem *
+parse_and_map_reg(struct device_node *node, u32 *shift, u32 *width)
+{
+       void __iomem *reg;
+
+       if (of_property_read_u32(node, "lsi,bit-shift", shift)) {
+               pr_err("%s: no 'lsi,bit-shift' property\n", node->name);
+               return NULL;
+       }
+
+       if (of_property_read_u32(node, "lsi,bit-width", width)) {
+               pr_err("%s: no 'lsi,bit-width' property\n", node->name);
+               return NULL;
+       }
+
+       reg = of_iomap(node, 0);
+       if (!reg)
+               pr_err("%s: failed to map register\n", node->name);
+
+       return reg;
+}
+
+/**
+ * struct axxia_pllclk - Axxia PLL generated clock.
+ * @hw: clk_hw for the PLL
+ * @regs: Pointer to control registers
+ */
+struct axxia_pllclk {
+       struct clk_hw hw;
+       void __iomem *regs;
+};
+
+#define to_axxia_pll(_hw) container_of(_hw, struct axxia_pllclk, hw)
+
+static unsigned long
+axxia_pllclk_recalc(struct clk_hw *hw, unsigned long parent_rate)
+{
+       struct axxia_pllclk *pll = to_axxia_pll(hw);
+       unsigned long rate, fbdiv, refdiv, postdiv;
+       u32 control;
+
+       control = readl(pll->regs);
+       postdiv = ((control >> 0) & 0xf) + 1;
+       fbdiv   = ((control >> 4) & 0xfff) + 3;
+       refdiv  = ((control >> 16) & 0x1f) + 1;
+       rate = (parent_rate / (refdiv * postdiv)) * fbdiv;
+
+       return rate;
+}
+
+static const struct clk_ops clk_pll_ops = {
+       .recalc_rate = axxia_pllclk_recalc,
+};
+
+static struct clk *
+register_axxia_pllclk(struct device *dev, const char *name,
+                     const char *parent_name, void __iomem *regs)
+{
+       struct clk_init_data init;
+       struct axxia_pllclk *pll;
+       struct clk *clk;
+
+       pll = kzalloc(sizeof(*pll), GFP_KERNEL);
+       if (!pll)
+               return ERR_PTR(-ENOMEM);
+
+       init.name = name;
+       init.ops = &clk_pll_ops;
+       init.flags = 0;
+       init.parent_names = &parent_name;
+       init.num_parents = 1;
+
+       pll->regs = regs;
+       pll->hw.init = &init;
+
+       clk = clk_register(NULL, &pll->hw);
+       if (IS_ERR(clk))
+               kfree(pll);
+
+       return clk;
+}
+
+
+/**
+ * struct axxia_divclk - Axxia clock divider
+ * @hw: clk_hw for the divider
+ * @regs: Pointer to control registers
+ */
+struct axxia_divclk {
+       struct clk_hw hw;
+       void __iomem *regs;
+       int shift;
+       int width;
+};
+
+#define to_axxia_divclk(_hw) container_of(_hw, struct axxia_divclk, hw)
+
+static unsigned long
+axxia_divclk_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
+{
+       struct axxia_divclk *divclk = to_axxia_divclk(hw);
+       u32 ctrl, div;
+
+       ctrl = readl(divclk->regs);
+       div = 1 + ((ctrl >> divclk->shift) & GENMASK(divclk->width-1, 0));
+
+       return parent_rate / div;
+}
+
+const struct clk_ops axxia_divclk_ops = {
+       .recalc_rate = axxia_divclk_recalc_rate,
+};
+
+static struct clk *
+register_axxia_divclk(struct device *dev, const char *name,
+                     const char *parent_name, void __iomem *regs,
+                     int shift, int width)
+{
+       struct axxia_divclk *div;
+       struct clk *clk;
+       struct clk_init_data init;
+
+       div = kzalloc(sizeof(struct axxia_divclk), GFP_KERNEL);
+       if (!div)
+               return ERR_PTR(-ENOMEM);
+
+       init.name = name;
+       init.ops = &axxia_divclk_ops;
+       init.flags = CLK_IS_BASIC;
+       init.parent_names = &parent_name;
+       init.num_parents = 1;
+
+       div->regs = regs;
+       div->shift = shift;
+       div->width = width;
+       div->hw.init = &init;
+
+       /* register the clock */
+       clk = clk_register(dev, &div->hw);
+       if (IS_ERR(clk))
+               kfree(div);
+
+       return clk;
+}
+
+/**
+ * axxia_pll_clk_init - Axxia PLL clock setup function
+ * @node: pointer to device tree node
+ */
+static void __init
+axxia_pll_clk_init(struct device_node *node)
+{
+       struct clk *clk;
+       const char *parent_name;
+       void __iomem *regs;
+       const char *clk_name = node->name;
+
+       of_property_read_string(node, "clock-output-names", &clk_name);
+
+       parent_name = of_clk_get_parent_name(node, 0);
+       if (!parent_name) {
+               pr_err("%s: no parent clock\n", node->name);
+               return;
+       }
+
+       regs = of_iomap(node, 0);
+       if (!regs) {
+               pr_err("%s: failed to map register\n", node->name);
+               return;
+       }
+
+       clk = register_axxia_pllclk(NULL, clk_name, parent_name, regs);
+       if (IS_ERR(clk)) {
+               pr_err("%s: register failed (%ld)\n", clk_name, PTR_ERR(clk));
+               iounmap(regs);
+               return;
+       }
+
+       of_clk_add_provider(node, of_clk_src_simple_get, clk);
+}
+CLK_OF_DECLARE(axxia_pll_clk, "lsi,axxia-pll-clock", axxia_pll_clk_init);
+
+
+/**
+ * axxia_div_clk_init - Axxia clock divider setup function
+ * @node: device tree node for this clock
+ */
+static void __init
+axxia_div_clk_init(struct device_node *node)
+{
+       const char *parent_name;
+       void __iomem *reg;
+       u32 shift, width;
+       struct clk *clk;
+       const char *clk_name = node->name;
+
+       of_property_read_string(node, "clock-output-names", &clk_name);
+
+       parent_name = of_clk_get_parent_name(node, 0);
+       if (!parent_name) {
+               pr_err("%s: no parent clock\n", node->name);
+               return;
+       }
+
+       reg = parse_and_map_reg(node, &shift, &width);
+       if (!reg)
+               return;
+
+       clk = register_axxia_divclk(NULL, clk_name, parent_name, reg,
+                                   shift, width);
+       if (IS_ERR(clk)) {
+               pr_err("%s: register failed (%ld)\n", clk_name, PTR_ERR(clk));
+               iounmap(reg);
+               return;
+       }
+
+       of_clk_add_provider(node, of_clk_src_simple_get, clk);
+}
+CLK_OF_DECLARE(axxia_div_clk, "lsi,axxia-div-clock", axxia_div_clk_init);
+
+
+/**
+ * axxia_mux_clk_init - Clock mux setup function
+ * @node: device tree node for this clock
+ */
+static void __init
+axxia_mux_clk_init(struct device_node *node)
+{
+       void __iomem *reg;
+       struct clk *clk;
+       const char *parents[4];
+       int num_parents;
+       const char *clk_name = node->name;
+       u32 shift, width;
+       int i;
+
+       of_property_read_string(node, "clock-output-names", &clk_name);
+
+       for (i = 0; i < ARRAY_SIZE(parents); ++i) {
+               parents[i] = of_clk_get_parent_name(node, i);
+               if (!parents[i])
+                       break;
+       }
+       num_parents = i;
+
+       reg = parse_and_map_reg(node, &shift, &width);
+       if (!reg)
+               return;
+
+       clk = clk_register_mux(NULL, clk_name, parents,
+                              num_parents, 0, reg, shift, width,
+                              CLK_MUX_READ_ONLY, NULL);
+       if (IS_ERR(clk)) {
+               pr_err("%s: register failed (%ld)\n", clk_name, PTR_ERR(clk));
+               iounmap(reg);
+               return;
+       }
+
+       of_clk_add_provider(node, of_clk_src_simple_get, clk);
+}
+CLK_OF_DECLARE(pll_mux_clock, "lsi,axxia-mux-clock", axxia_mux_clk_init);
--

1.8.3.2

#5 lore raw

PATCH v2 3/6 ARM: dts: Device tree for AXM55xx.

In reply to Anders Berg

Add device tree for the Amarillo validation board with an AXM5516 SoC.

---
 arch/arm/boot/dts/Makefile             |   1 +
 arch/arm/boot/dts/axm5516-amarillo.dts |  51 ++++++
 arch/arm/boot/dts/axm5516-cpus.dtsi    | 204 ++++++++++++++++++++++
 arch/arm/boot/dts/axm55xx.dtsi         | 306 +++++++++++++++++++++++++++++++++
 4 files changed, 562 insertions(+)
 create mode 100644 arch/arm/boot/dts/axm5516-amarillo.dts
 create mode 100644 arch/arm/boot/dts/axm5516-cpus.dtsi
 create mode 100644 arch/arm/boot/dts/axm55xx.dtsi
arch/arm/boot/dts/Makefile +1 -0
index 35c146f..f73797f 100644
@@ -50,6 +50,7 @@ dtb-$(CONFIG_ARCH_AT91)	+= sama5d35ek.dtb
 dtb-$(CONFIG_ARCH_AT91)	+= sama5d36ek.dtb
 
 dtb-$(CONFIG_ARCH_ATLAS6) += atlas6-evb.dtb
+dtb-$(CONFIG_ARCH_AXXIA) += axm5516-amarillo.dtb
 dtb-$(CONFIG_ARCH_BCM2835) += bcm2835-rpi-b.dtb
 dtb-$(CONFIG_ARCH_BCM_MOBILE) += bcm28155-ap.dtb \
 	bcm21664-garnet.dtb
arch/arm/boot/dts/axm5516-amarillo.dts new file +51 -0

51 lines not on this page · raw message

arch/arm/boot/dts/axm5516-cpus.dtsi new file +204 -0

204 lines not on this page · raw message

arch/arm/boot/dts/axm55xx.dtsi new file +306 -0

306 lines not on this page · raw message

Signature · 1 line
1.8.3.2
#6 lore raw

Re: [PATCH v2 3/6] ARM: dts: Device tree for AXM55xx.

Quoted 3 lines · Anders Berg

Add device tree for the Amarillo validation board with an AXM5516 SoC.

(...)

Quoted 24 lines
arch/arm/boot/dts/axm55xx.dtsi new file +24 -0
+                       timer0: timer at 2010091000 {
+                               compatible = "arm,sp804", "arm,primecell";
+                               reg = <0x20 0x10091000 0 0x1000>;
+                               interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>;
+                               clocks = <&clk_per>;
+                               clock-names = "apb_pclk";
+                               status = "okay";
+                       };
+
+                       gpio0: gpio at 2010092000 {
+                               #gpio-cells = <2>;
+                               compatible = "arm,pl061", "arm,primecell";
+                               gpio-controller;
+                               reg = <0x20 0x10092000 0x00 0x1000>;
+                               interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,

arch/arm/boot/dts/axm55xx.dtsi line 286

Quoted 10 lines
arch/arm/boot/dts/axm55xx.dtsi new file +10 -0
+                                            <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
+                               clocks = <&clk_per>;
+                               clock-names = "apb_pclk";
+                               status = "disabled";
+                       };

One interrupt per CPU core?

The drivers for these blocks will really just grab the first IRQ and then I guess they
will only be able to execute on CPU0.

It's definately correct to list all the IRQs here, but how do you envision the drivers making use of them in the long run?

Yours,
Linus Walleij

#7 lore raw

Re: [PATCH v2 3/6] ARM: dts: Device tree for AXM55xx.

Quoted 42 lines · Linus Walleij
Quoted 3 lines · Anders Berg

Add device tree for the Amarillo validation board with an AXM5516 SoC.

(...)

Quoted 24 lines
arch/arm/boot/dts/axm55xx.dtsi new file +24 -0
+                       timer0: timer at 2010091000 {
+                               compatible = "arm,sp804", "arm,primecell";
+                               reg = <0x20 0x10091000 0 0x1000>;
+                               interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>;
+                               clocks = <&clk_per>;
+                               clock-names = "apb_pclk";
+                               status = "okay";
+                       };
+
+                       gpio0: gpio at 2010092000 {
+                               #gpio-cells = <2>;
+                               compatible = "arm,pl061", "arm,primecell";
+                               gpio-controller;
+                               reg = <0x20 0x10092000 0x00 0x1000>;
+                               interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,

arch/arm/boot/dts/axm55xx.dtsi line 286

Quoted 10 lines
arch/arm/boot/dts/axm55xx.dtsi new file +10 -0
+                                            <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>,
+                                            <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
+                               clocks = <&clk_per>;
+                               clock-names = "apb_pclk";
+                               status = "disabled";
+                       };
Quoted 8 lines

One interrupt per CPU core?

The drivers for these blocks will really just grab the first IRQ and then I guess they
will only be able to execute on CPU0.

It's definately correct to list all the IRQs here, but how do you envision the drivers making use of them in the long run?

It's one interrupt line per input pin (so with the current driver only the first pin is usable as interrupt source).

/Anders

Quoted 4 lines

Yours,
Linus Walleij

#8 lore raw

Re: [PATCH v2 3/6] ARM: dts: Device tree for AXM55xx.

Quoted 8 lines · Anders Berg
Quoted 6 lines · Linus Walleij

One interrupt per CPU core?

The drivers for these blocks will really just grab the first IRQ and then I guess they
will only be able to execute on CPU0.

Quoted 5 lines
Quoted 2 lines

It's definately correct to list all the IRQs here, but how do you envision the drivers making use of them in the long run?

It's one interrupt line per input pin (so with the current driver only the first pin is usable as interrupt source).

Hm I'm not sure I understand what a "pin" is in this concept ... being maintainer of the pin control subsystem and all that really triggers my interest.

Yours.
Linus Walleij

#9 lore raw

Re: [PATCH v2 3/6] ARM: dts: Device tree for AXM55xx.

Quoted 12 lines · Linus Walleij
Quoted 11 lines · Anders Berg
Quoted 8 lines · Linus Walleij

One interrupt per CPU core?

The drivers for these blocks will really just grab the first IRQ and then I guess they
will only be able to execute on CPU0.

It's definately correct to list all the IRQs here, but how do you envision the drivers making use of them in the long run?

Quoted 7 lines
Quoted 2 lines

It's one interrupt line per input pin (so with the current driver only the first pin is usable as interrupt source).

Hm I'm not sure I understand what a "pin" is in this concept ... being maintainer of the pin control subsystem and all that really triggers my interest.

Ok, maybe should replace "pin" with "GPIO" in my previous comment.

So, a clarification. In one of the PL061 blocks (named gpio0 in the dts) there is a separate interrupt per GPIO (I assume the motivation here is to enable to control irq affinity per GPIO), where as the other block has a more standard configuration with a single interrupt for all 8 GPIOs in that block.

/Anders

Quoted 3 lines

Yours.
Linus Walleij

#10 lore raw

Re: [PATCH v2 3/6] ARM: dts: Device tree for AXM55xx.

Quoted 21 lines · Anders Berg
Quoted 12 lines · Linus Walleij
Quoted 11 lines · Anders Berg
Quoted 8 lines · Linus Walleij

One interrupt per CPU core?

The drivers for these blocks will really just grab the first IRQ and then I guess they
will only be able to execute on CPU0.

It's definately correct to list all the IRQs here, but how do you envision the drivers making use of them in the long run?

Quoted 7 lines
Quoted 2 lines

It's one interrupt line per input pin (so with the current driver only the first pin is usable as interrupt source).

Hm I'm not sure I understand what a "pin" is in this concept ... being maintainer of the pin control subsystem and all that really triggers my interest.

Quoted 6 lines

Ok, maybe should replace "pin" with "GPIO" in my previous comment.

So, a clarification. In one of the PL061 blocks (named gpio0 in the dts) there is a separate interrupt per GPIO (I assume the motivation here is to enable to control irq affinity per GPIO), where as the other block has a more standard configuration with a single interrupt for all 8 GPIOs in that block.

OK! I get it. Thus this is not a stock PL061, but a version modified to generate a separate IRQ line per GPIO line.

This means that you can only get a proper, working IRQ from the first line on gpio0 right? All other IRQs will be ignored.

I see no problem in augmenting the driver to handle this if #irqs == 8, the big change needs to happen in drivers/amba/bus.c that has no way to pass any more than two IRQs atm.

I guess the best is to augment struct amba_device with a field struct resource *resource and num_resources like platform_device instead of the hard-coded single resource for iomem and two hardcoded IRQ placeholders, so that an arbitrary amount of resources can be added to an amba_device as well. But that may be quite a lot of work. (Russell will know which direction to take here.)

A simpler, local approach is to add some custom DT parsing code to handle this in the pl061 driver, but that feels a bit hacky.

Yours,
Linus Walleij

#11 lore raw

Re: [PATCH v2 3/6] ARM: dts: Device tree for AXM55xx.

Quoted 7 lines · Linus Walleij

This means that you can only get a proper, working IRQ from the first line on gpio0 right? All other IRQs will be ignored.

I see no problem in augmenting the driver to handle this if #irqs == 8, the big change needs to happen in drivers/amba/bus.c that has no way to pass any more than two IRQs atm.

Quoted 7 lines

I guess the best is to augment struct amba_device with a field struct resource *resource and num_resources like platform_device instead of the hard-coded single resource for iomem and two hardcoded IRQ placeholders, so that an arbitrary amount of resources can be added to an amba_device as well. But that may be quite a lot of work. (Russell will know which direction to take here.)

I definitely don't want to go down that route - I believe that the resource arrays are more pain than they're really worth - it requires a great amount of support to make that stuff work (just look at the amount of code there is to search the arrays, create them, etc.)

We already have support for up to 9 IRQs, so 8 for GPIOs is already catered for.

Signature · 2 lines
FTTC broadband for 0.8mile line: now at 9.7Mbps down 460kbps up... slowly
improving, and getting towards what was expected from it.
#12 lore raw

Re: [PATCH v2 3/6] ARM: dts: Device tree for AXM55xx.

In reply to Linus Walleij
Quoted 24 lines · Linus Walleij
Quoted 23 lines · Anders Berg
Quoted 12 lines · Linus Walleij
Quoted 11 lines · Anders Berg
Quoted 8 lines · Linus Walleij

One interrupt per CPU core?

The drivers for these blocks will really just grab the first IRQ and then I guess they
will only be able to execute on CPU0.

It's definately correct to list all the IRQs here, but how do you envision the drivers making use of them in the long run?

Quoted 7 lines
Quoted 2 lines

It's one interrupt line per input pin (so with the current driver only the first pin is usable as interrupt source).

Hm I'm not sure I understand what a "pin" is in this concept ... being maintainer of the pin control subsystem and all that really triggers my interest.

Ok, maybe should replace "pin" with "GPIO" in my previous comment.

Quoted 8 lines
Quoted 4 lines

So, a clarification. In one of the PL061 blocks (named gpio0 in the dts) there is a separate interrupt per GPIO (I assume the motivation here is to enable to control irq affinity per GPIO), where as the other block has a more standard configuration with a single interrupt for all 8 GPIOs in that block.

OK! I get it. Thus this is not a stock PL061, but a version modified to generate a separate IRQ line per GPIO line.

I believe it's an unmodified PL061. Looking at the TRM, the PL061 interface signals include a GPIOMIS[7:0] in addition to the GPIOINTR. So I guess by hooking up the GPIOMIS[7:0] signals to the interrupt controller, you can get this one-irq-per-gpio setup.

Quoted 2 lines

This means that you can only get a proper, working IRQ from the first line on gpio0 right? All other IRQs will be ignored.

Right.

/Anders

#13 lore raw

PATCH v2 4/6 ARM: axxia: Adding defconfig for AXM55xx

In reply to Anders Berg

Add a defconfig file for the LSI Axxia family of devices (CONFIG_ARCH_AXXIA).

---
 arch/arm/configs/axm55xx_defconfig | 248 +++++++++++++++++++++++++++++++++++++
 1 file changed, 248 insertions(+)
 create mode 100644 arch/arm/configs/axm55xx_defconfig
arch/arm/configs/axm55xx_defconfig new file +248 -0
new file mode 100644
index 0000000..d3260d7
@@ -0,0 +1,248 @@
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_FHANDLE=y
+CONFIG_AUDIT=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
+CONFIG_TASKSTATS=y
+CONFIG_TASK_DELAY_ACCT=y
+CONFIG_TASK_XACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=16
+CONFIG_NAMESPACES=y
+# CONFIG_UTS_NS is not set
+# CONFIG_IPC_NS is not set
+# CONFIG_PID_NS is not set
+# CONFIG_NET_NS is not set
+CONFIG_SCHED_AUTOGROUP=y
+CONFIG_RELAY=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_EMBEDDED=y
+# CONFIG_COMPAT_BRK is not set
+CONFIG_PROFILING=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_IOSCHED_DEADLINE is not set
+CONFIG_ARCH_AXXIA=y
+CONFIG_GPIO_PCA953X=y
+CONFIG_ARM_LPAE=y
+CONFIG_ARM_THUMBEE=y
+CONFIG_ARM_ERRATA_430973=y
+CONFIG_ARM_ERRATA_643719=y
+CONFIG_ARM_ERRATA_720789=y
+CONFIG_ARM_ERRATA_754322=y
+CONFIG_ARM_ERRATA_754327=y
+CONFIG_ARM_ERRATA_764369=y
+CONFIG_ARM_ERRATA_775420=y
+CONFIG_ARM_ERRATA_798181=y
+CONFIG_PCI=y
+CONFIG_PCI_MSI=y
+CONFIG_PCIE_AXXIA=y
+CONFIG_SMP=y
+CONFIG_NR_CPUS=16
+CONFIG_HOTPLUG_CPU=y
+CONFIG_PREEMPT=y
+CONFIG_AEABI=y
+CONFIG_OABI_COMPAT=y
+CONFIG_HIGHMEM=y
+CONFIG_KSM=y
+CONFIG_ZBOOT_ROM_TEXT=0x0
+CONFIG_ZBOOT_ROM_BSS=0x0
+CONFIG_ARM_APPENDED_DTB=y
+CONFIG_ARM_ATAG_DTB_COMPAT=y
+CONFIG_VFP=y
+CONFIG_NEON=y
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+CONFIG_BINFMT_MISC=y
+# CONFIG_SUSPEND is not set
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_XFRM_USER=y
+CONFIG_XFRM_SUB_POLICY=y
+CONFIG_XFRM_MIGRATE=y
+CONFIG_XFRM_STATISTICS=y
+CONFIG_NET_KEY=y
+CONFIG_INET=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_IP_PNP_BOOTP=y
+CONFIG_INET_AH=y
+CONFIG_INET_ESP=y
+CONFIG_INET_IPCOMP=y
+# CONFIG_INET_LRO is not set
+# CONFIG_IPV6 is not set
+CONFIG_NETWORK_PHY_TIMESTAMPING=y
+CONFIG_BRIDGE=y
+# CONFIG_WIRELESS is not set
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_MTD=y
+CONFIG_MTD_CMDLINE_PARTS=y
+CONFIG_MTD_AFS_PARTS=y
+CONFIG_MTD_BLOCK=y
+CONFIG_MTD_CFI=y
+CONFIG_MTD_CFI_INTELEXT=y
+CONFIG_MTD_CFI_AMDSTD=y
+CONFIG_MTD_CFI_STAA=y
+CONFIG_MTD_PHYSMAP=y
+CONFIG_MTD_PHYSMAP_OF=y
+CONFIG_MTD_M25P80=y
+CONFIG_PROC_DEVICETREE=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_EEPROM_AT24=y
+CONFIG_EEPROM_AT25=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_CHR_DEV_SG=y
+CONFIG_ATA=y
+CONFIG_PATA_PLATFORM=y
+CONFIG_PATA_OF_PLATFORM=y
+CONFIG_MD=y
+CONFIG_BLK_DEV_DM=y
+CONFIG_DM_UEVENT=y
+CONFIG_NETDEVICES=y
+CONFIG_TUN=y
+CONFIG_VETH=y
+CONFIG_VIRTIO_NET=y
+# CONFIG_NET_CADENCE is not set
+# CONFIG_NET_VENDOR_BROADCOM is not set
+# CONFIG_NET_VENDOR_CIRRUS is not set
+# CONFIG_NET_VENDOR_FARADAY is not set
+# CONFIG_NET_VENDOR_INTEL is not set
+# CONFIG_NET_VENDOR_MARVELL is not set
+# CONFIG_NET_VENDOR_MICREL is not set
+# CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_SEEQ is not set
+# CONFIG_NET_VENDOR_SMSC is not set
+# CONFIG_NET_VENDOR_STMICRO is not set
+# CONFIG_NET_VENDOR_VIA is not set
+# CONFIG_NET_VENDOR_WIZNET is not set
+CONFIG_BROADCOM_PHY=y
+# CONFIG_WLAN is not set
+# CONFIG_MOUSE_PS2_ALPS is not set
+# CONFIG_MOUSE_PS2_LOGIPS2PP is not set
+# CONFIG_MOUSE_PS2_SYNAPTICS is not set
+# CONFIG_MOUSE_PS2_TRACKPOINT is not set
+# CONFIG_SERIO_SERPORT is not set
+CONFIG_SERIO_AMBAKMI=y
+CONFIG_LEGACY_PTY_COUNT=16
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_VIRTIO_CONSOLE=y
+# CONFIG_HW_RANDOM is not set
+CONFIG_I2C=y
+CONFIG_I2C_CHARDEV=y
+CONFIG_I2C_MUX=y
+CONFIG_I2C_AXXIA=y
+CONFIG_SPI=y
+CONFIG_SPI_PL022=y
+CONFIG_DP83640_PHY=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_PL061=y
+CONFIG_POWER_SUPPLY=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_RESET_AXXIA=y
+CONFIG_SENSORS_ADT7475=y
+CONFIG_SENSORS_JC42=y
+CONFIG_SENSORS_LM75=y
+CONFIG_PMBUS=y
+CONFIG_SENSORS_LTC2978=y
+CONFIG_WATCHDOG=y
+CONFIG_ARM_SP805_WATCHDOG=y
+CONFIG_FB=y
+CONFIG_FB_ARMCLCD=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_LOGO=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+CONFIG_HID_A4TECH=y
+CONFIG_HID_APPLE=y
+CONFIG_HID_BELKIN=y
+CONFIG_HID_CHERRY=y
+CONFIG_HID_CHICONY=y
+CONFIG_HID_CYPRESS=y
+CONFIG_HID_DRAGONRISE=y
+CONFIG_HID_EZKEY=y
+CONFIG_HID_KYE=y
+CONFIG_HID_GYRATION=y
+CONFIG_HID_TWINHAN=y
+CONFIG_HID_KENSINGTON=y
+CONFIG_HID_LOGITECH=y
+CONFIG_HID_MICROSOFT=y
+CONFIG_HID_MONTEREY=y
+CONFIG_HID_NTRIG=y
+CONFIG_HID_ORTEK=y
+CONFIG_HID_PANTHERLORD=y
+CONFIG_HID_PETALYNX=y
+CONFIG_HID_SAMSUNG=y
+CONFIG_HID_SUNPLUS=y
+CONFIG_HID_GREENASIA=y
+CONFIG_HID_SMARTJOYPLUS=y
+CONFIG_HID_TOPSEED=y
+CONFIG_HID_THRUSTMASTER=y
+CONFIG_HID_ZEROPLUS=y
+CONFIG_USB=y
+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
+CONFIG_USB_EHCI_HCD=y
+# CONFIG_USB_EHCI_TT_NEWSCHED is not set
+CONFIG_USB_EHCI_HCD_AXXIA=y
+CONFIG_USB_STORAGE=y
+CONFIG_MMC=y
+CONFIG_MMC_ARMMMCI=y
+CONFIG_DMADEVICES=y
+CONFIG_PL330_DMA=y
+CONFIG_VIRT_DRIVERS=y
+CONFIG_VIRTIO_MMIO=y
+CONFIG_MAILBOX=y
+CONFIG_PL320_MBOX=y
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_EXT2_FS=y
+CONFIG_EXT3_FS=y
+# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
+CONFIG_EXT4_FS=y
+CONFIG_AUTOFS4_FS=y
+CONFIG_FUSE_FS=y
+CONFIG_CUSE=y
+CONFIG_FSCACHE=y
+CONFIG_FSCACHE_STATS=y
+CONFIG_FSCACHE_HISTOGRAM=y
+CONFIG_FSCACHE_DEBUG=y
+CONFIG_FSCACHE_OBJECT_LIST=y
+CONFIG_CACHEFILES=y
+CONFIG_CACHEFILES_HISTOGRAM=y
+CONFIG_ISO9660_FS=y
+CONFIG_UDF_FS=y
+CONFIG_MSDOS_FS=y
+CONFIG_VFAT_FS=y
+CONFIG_NTFS_FS=y
+CONFIG_TMPFS=y
+CONFIG_JFFS2_FS=y
+CONFIG_CRAMFS=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V4=y
+CONFIG_ROOT_NFS=y
+CONFIG_NFS_FSCACHE=y
+CONFIG_SUNRPC_DEBUG=y
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_ISO8859_1=y
+CONFIG_PRINTK_TIME=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_FS=y
+CONFIG_MAGIC_SYSRQ=y
+# CONFIG_SCHED_DEBUG is not set
+CONFIG_RCU_CPU_STALL_TIMEOUT=60
+# CONFIG_FTRACE is not set
+CONFIG_DEBUG_USER=y
+CONFIG_CRYPTO_GCM=y
+CONFIG_CRYPTO_XCBC=y
+CONFIG_CRYPTO_SHA256=y
+# CONFIG_CRYPTO_ANSI_CPRNG is not set
+CONFIG_VIRTUALIZATION=y
+CONFIG_KVM=y
Signature · 1 line
1.8.3.2
#14 lore raw

PATCH v2 5/6 power: reset: Add Axxia system reset driver

In reply to Anders Berg

Add Axxia (AXM55xx) SoC system reset driver. This driver handles only system reboot (and not power-off).

---
 .../bindings/power_supply/axxia-reset.txt          | 20 +++++
 drivers/power/reset/Kconfig                        |  8 ++
 drivers/power/reset/Makefile                       |  1 +
 drivers/power/reset/axxia-reset.c                  | 97 ++++++++++++++++++++++
 4 files changed, 126 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/power_supply/axxia-reset.txt
 create mode 100644 drivers/power/reset/axxia-reset.c
Documentation/devicetree/bindings/power_supply/axxia-reset.txt new file +20 -0
new file mode 100644
index 0000000..47e720d
@@ -0,0 +1,20 @@
+Axxia Restart Driver
+
+This driver can do reset of the Axxia SoC. It uses the registers in the syscon
+block to initiate a chip reset.
+
+Required Properties:
+  -compatible: "lsi,axm55xx-reset"
+  -syscon: phandle to the syscon node.
+
+Example:
+
+	syscon: syscon at 2010030000 {
+		compatible = "lsi,axxia-syscon", "syscon";
+		reg = <0x20 0x10030000 0 0x2000>;
+	};
+
+	reset: reset at 2010031000 {
+		compatible = "lsi,axm55xx-reset";
+		syscon = <&syscon>;
+	};
drivers/power/reset/Kconfig +8 -0
index fa0e4e0..49b46e6 100644
@@ -12,6 +12,14 @@ config POWER_RESET_AS3722
 	help
 	  This driver supports turning off board via a ams AS3722 power-off.
 
+config POWER_RESET_AXXIA
+	bool "LSI Axxia reset driver"
+	depends on POWER_RESET && ARCH_AXXIA
+	help
+	  This driver supports restart for Axxia SoC.
+
+	  Say Y if you have an Axxia family SoC.
+
 config POWER_RESET_GPIO
 	bool "GPIO power-off driver"
 	depends on OF_GPIO && POWER_RESET
drivers/power/reset/Makefile +1 -0
index a5b4a77..16c0516 100644
@@ -1,4 +1,5 @@
 obj-$(CONFIG_POWER_RESET_AS3722) += as3722-poweroff.o
+obj-$(CONFIG_POWER_RESET_AXXIA) += axxia-reset.o
 obj-$(CONFIG_POWER_RESET_GPIO) += gpio-poweroff.o
 obj-$(CONFIG_POWER_RESET_MSM) += msm-poweroff.o
 obj-$(CONFIG_POWER_RESET_QNAP) += qnap-poweroff.o
drivers/power/reset/axxia-reset.c new file +97 -0

97 lines not on this page · raw message

Signature · 1 line
1.8.3.2
#15 lore raw

PATCH v2 6/6 ARM: dts: axxia: Add reset controller

In reply to Anders Berg

Add the reset controller to the AXM5xx device tree.

---
 arch/arm/boot/dts/axm55xx.dtsi | 5 +++++
 1 file changed, 5 insertions(+)
arch/arm/boot/dts/axm55xx.dtsi +5 -0
index 5d63887..bd1e07d 100644
@@ -208,6 +208,11 @@
 			reg = <0x20 0x10030000 0 0x2000>;
 		};
 
+		reset: reset at 2010031000 {
+			compatible = "lsi,axm55xx-reset";
+			syscon = <&syscon>;
+		};
+
 		amba {
 			compatible = "arm,amba-bus";
 			#address-cells = <2>;
Signature · 1 line
1.8.3.2
#16 lore raw
In reply to Anders Berg

Hi Anrd,

Any comments on this updated series?

/Anders

Quoted 63 lines · Anders Berg

Hi,

Verion 2 of this series to introduces basic platform support for the LSI AXM5516 SoC. When this is in shape, could it be merged into the arm-soc tree?

Changes:

v2:
* Rebased to arm-soc/for-next
* Removed redundant HAVE_SMP and ARCH_WANT_OPTIONAL_GPIOLIB from Kconfig
* Use CPU_METHOD_OF_DECLARE to register smp_operations
* Rework smp operations to avoid holding pen and custom headsmp.S
* Clean up board file
* Corrected clock properties for arm,sp804 dts node.
* Changed machine compatible strings to include full model number.
* Break out clk-axxia driver as separate patch
* Removed Makefile.boot

Anders Berg (6):
ARM: Add platform support for LSI AXM55xx SoC
clk: Add clock driver for AXM55xx SoC
ARM: dts: Device tree for AXM55xx.
ARM: axxia: Adding defconfig for AXM55xx
power: reset: Add Axxia system reset driver
ARM: dts: axxia: Add reset controller

 Documentation/devicetree/bindings/arm/axxia.txt    |  12 +
 .../devicetree/bindings/clock/clk-axxia.txt        |  88 ++++++
 .../bindings/power_supply/axxia-reset.txt          |  20 ++
 arch/arm/Kconfig                                   |   2 +
 arch/arm/Makefile                                  |   2 +
 arch/arm/boot/dts/Makefile                         |   1 +
 arch/arm/boot/dts/axm5516-amarillo.dts             |  51 ++++
 arch/arm/boot/dts/axm5516-cpus.dtsi                | 204 ++++++++++++++
 arch/arm/boot/dts/axm55xx.dtsi                     | 311 +++++++++++++++++++++
 arch/arm/configs/axm55xx_defconfig                 | 248 ++++++++++++++++
 arch/arm/mach-axxia/Kconfig                        |  16 ++
 arch/arm/mach-axxia/Makefile                       |   2 +
 arch/arm/mach-axxia/axxia.c                        |  28 ++
 arch/arm/mach-axxia/platsmp.c                      |  89 ++++++
 drivers/clk/Makefile                               |   1 +
 drivers/clk/clk-axxia.c                            | 281 +++++++++++++++++++
 drivers/power/reset/Kconfig                        |   8 +
 drivers/power/reset/Makefile                       |   1 +
 drivers/power/reset/axxia-reset.c                  |  97 +++++++
 19 files changed, 1462 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/axxia.txt
 create mode 100644 Documentation/devicetree/bindings/clock/clk-axxia.txt
 create mode 100644 Documentation/devicetree/bindings/power_supply/axxia-reset.txt
 create mode 100644 arch/arm/boot/dts/axm5516-amarillo.dts
 create mode 100644 arch/arm/boot/dts/axm5516-cpus.dtsi
 create mode 100644 arch/arm/boot/dts/axm55xx.dtsi
 create mode 100644 arch/arm/configs/axm55xx_defconfig
 create mode 100644 arch/arm/mach-axxia/Kconfig
 create mode 100644 arch/arm/mach-axxia/Makefile
 create mode 100644 arch/arm/mach-axxia/axxia.c
 create mode 100644 arch/arm/mach-axxia/platsmp.c
 create mode 100644 drivers/clk/clk-axxia.c
 create mode 100644 drivers/power/reset/axxia-reset.c
Signature · 1 line
1.8.3.2