From 1d22924e1c4e299337e86e290c02c3e3eb43b608 Mon Sep 17 00:00:00 2001 From: Anders Berg Date: Fri, 23 May 2014 11:08:35 +0200 Subject: [PATCH 1/5] 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. Signed-off-by: Anders Berg Acked-by: Linus Walleij Signed-off-by: Arnd Bergmann --- .../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 +++++++++++++++++++ include/dt-bindings/clock/lsi,axm5516-clks.h | 36 ++++++++ 8 files changed, 187 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 create mode 100644 include/dt-bindings/clock/lsi,axm5516-clks.h diff --git a/Documentation/devicetree/bindings/arm/axxia.txt b/Documentation/devicetree/bindings/arm/axxia.txt new file mode 100644 index 000000000000..7b4ef9c07696 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/axxia.txt @@ -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" diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index ab438cb5af55..1f8651a3a16e 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -950,6 +950,8 @@ 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" diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 41c1931f0155..6721fab13734 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -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-$(CONFIG_ARCH_CLPS711X) += clps711x diff --git a/arch/arm/mach-axxia/Kconfig b/arch/arm/mach-axxia/Kconfig new file mode 100644 index 000000000000..8be7e0ae1922 --- /dev/null +++ b/arch/arm/mach-axxia/Kconfig @@ -0,0 +1,16 @@ +config ARCH_AXXIA + bool "LSI Axxia platforms" if (ARCH_MULTI_V7 && ARM_LPAE) + select ARCH_DMA_ADDR_T_64BIT + select ARM_AMBA + select ARM_GIC + select ARM_TIMER_SP804 + select HAVE_ARM_ARCH_TIMER + select MFD_SYSCON + select MIGHT_HAVE_PCI + select PCI_DOMAINS if PCI + select ZONE_DMA + help + This enables support for the LSI Axxia devices. + + The LSI Axxia platforms require a Flattened Device Tree to be passed + to the kernel. diff --git a/arch/arm/mach-axxia/Makefile b/arch/arm/mach-axxia/Makefile new file mode 100644 index 000000000000..ec4f68b460c6 --- /dev/null +++ b/arch/arm/mach-axxia/Makefile @@ -0,0 +1,2 @@ +obj-y += axxia.o +obj-$(CONFIG_SMP) += platsmp.o diff --git a/arch/arm/mach-axxia/axxia.c b/arch/arm/mach-axxia/axxia.c new file mode 100644 index 000000000000..19e5a1d95397 --- /dev/null +++ b/arch/arm/mach-axxia/axxia.c @@ -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 +#include + +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 diff --git a/arch/arm/mach-axxia/platsmp.c b/arch/arm/mach-axxia/platsmp.c new file mode 100644 index 000000000000..959d4df3d2b6 --- /dev/null +++ b/arch/arm/mach-axxia/platsmp.c @@ -0,0 +1,89 @@ +/* + * linux/arch/arm/mach-axxia/platsmp.c + * + * Copyright (C) 2012 LSI Corporation + * + * 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 +#include +#include +#include +#include +#include + +/* Syscon register offsets for releasing cores from reset */ +#define SC_CRIT_WRITE_KEY 0x1000 +#define SC_RST_CPU_HOLD 0x1010 + +/* + * Write the kernel entry point for secondary CPUs to the specified address + */ +static void write_release_addr(u32 release_phys) +{ + u32 *virt = (u32 *) phys_to_virt(release_phys); + writel_relaxed(virt_to_phys(secondary_startup), virt); + /* Make sure this store is visible to other CPUs */ + smp_wmb(); + __cpuc_flush_dcache_area(virt, sizeof(u32)); +} + +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); + 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; +} + +static void __init axxia_smp_prepare_cpus(unsigned int max_cpus) +{ + int cpu_count = 0; + int cpu; + + /* + * Initialise the present map, which describes the set of CPUs actually + * populated at the present time. + */ + for_each_possible_cpu(cpu) { + struct device_node *np; + u32 release_phys; + + np = of_get_cpu_node(cpu, NULL); + if (!np) + continue; + if (of_property_read_u32(np, "cpu-release-addr", &release_phys)) + continue; + + if (cpu_count < max_cpus) { + set_cpu_present(cpu, true); + cpu_count++; + } + + if (release_phys != 0) + write_release_addr(release_phys); + } +} + +static struct smp_operations axxia_smp_ops __initdata = { + .smp_prepare_cpus = axxia_smp_prepare_cpus, + .smp_boot_secondary = axxia_boot_secondary, +}; +CPU_METHOD_OF_DECLARE(axxia_smp, "lsi,syscon-release", &axxia_smp_ops); diff --git a/include/dt-bindings/clock/lsi,axm5516-clks.h b/include/dt-bindings/clock/lsi,axm5516-clks.h new file mode 100644 index 000000000000..beb41ace5dd6 --- /dev/null +++ b/include/dt-bindings/clock/lsi,axm5516-clks.h @@ -0,0 +1,36 @@ +/* + * Copyright (c) 2014 LSI Corporation + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + */ + +#ifndef _DT_BINDINGS_CLK_AXM5516_H +#define _DT_BINDINGS_CLK_AXM5516_H + +#define AXXIA_CLK_FAB_PLL 0 +#define AXXIA_CLK_CPU_PLL 1 +#define AXXIA_CLK_SYS_PLL 2 +#define AXXIA_CLK_SM0_PLL 3 +#define AXXIA_CLK_SM1_PLL 4 +#define AXXIA_CLK_FAB_DIV 5 +#define AXXIA_CLK_SYS_DIV 6 +#define AXXIA_CLK_NRCP_DIV 7 +#define AXXIA_CLK_CPU0_DIV 8 +#define AXXIA_CLK_CPU1_DIV 9 +#define AXXIA_CLK_CPU2_DIV 10 +#define AXXIA_CLK_CPU3_DIV 11 +#define AXXIA_CLK_PER_DIV 12 +#define AXXIA_CLK_MMC_DIV 13 +#define AXXIA_CLK_FAB 14 +#define AXXIA_CLK_SYS 15 +#define AXXIA_CLK_NRCP 16 +#define AXXIA_CLK_CPU0 17 +#define AXXIA_CLK_CPU1 18 +#define AXXIA_CLK_CPU2 19 +#define AXXIA_CLK_CPU3 20 +#define AXXIA_CLK_PER 21 +#define AXXIA_CLK_MMC 22 + +#endif From 8cee8af2ac17302960bf2030820512f0f9848014 Mon Sep 17 00:00:00 2001 From: Anders Berg Date: Fri, 23 May 2014 11:08:36 +0200 Subject: [PATCH 2/5] ARM: dts: Device tree for AXM55xx. Add device tree for the Amarillo validation board with an AXM5516 SoC. Signed-off-by: Anders Berg Acked-by: Linus Walleij Signed-off-by: Arnd Bergmann --- 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 | 199 ++++++++++++++++++++++++ 4 files changed, 455 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 diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 35c146f31e46..f73797f7ff48 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -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 diff --git a/arch/arm/boot/dts/axm5516-amarillo.dts b/arch/arm/boot/dts/axm5516-amarillo.dts new file mode 100644 index 000000000000..a9d60471d9ff --- /dev/null +++ b/arch/arm/boot/dts/axm5516-amarillo.dts @@ -0,0 +1,51 @@ +/* + * arch/arm/boot/dts/axm5516-amarillo.dts + * + * Copyright (C) 2013 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. + */ + +/dts-v1/; + +/memreserve/ 0x00000000 0x00400000; + +#include "axm55xx.dtsi" +#include "axm5516-cpus.dtsi" + +/ { + model = "Amarillo AXM5516"; + compatible = "lsi,axm5516-amarillo", "lsi,axm5516"; + + memory { + device_type = "memory"; + reg = <0 0x00000000 0x02 0x00000000>; + }; +}; + +&serial0 { + status = "okay"; +}; + +&serial1 { + status = "okay"; +}; + +&serial2 { + status = "okay"; +}; + +&serial3 { + status = "okay"; +}; + +&gpio0 { + status = "okay"; +}; + +&gpio1 { + status = "okay"; +}; diff --git a/arch/arm/boot/dts/axm5516-cpus.dtsi b/arch/arm/boot/dts/axm5516-cpus.dtsi new file mode 100644 index 000000000000..b85f360cb125 --- /dev/null +++ b/arch/arm/boot/dts/axm5516-cpus.dtsi @@ -0,0 +1,204 @@ +/* + * arch/arm/boot/dts/axm5516-cpus.dtsi + * + * Copyright (C) 2013 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. + */ + +/ { + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu-map { + cluster0 { + core0 { + cpu = <&CPU0>; + }; + core1 { + cpu = <&CPU1>; + }; + core2 { + cpu = <&CPU2>; + }; + core3 { + cpu = <&CPU3>; + }; + }; + cluster1 { + core0 { + cpu = <&CPU4>; + }; + core1 { + cpu = <&CPU5>; + }; + core2 { + cpu = <&CPU6>; + }; + core3 { + cpu = <&CPU7>; + }; + }; + cluster2 { + core0 { + cpu = <&CPU8>; + }; + core1 { + cpu = <&CPU9>; + }; + core2 { + cpu = <&CPU10>; + }; + core3 { + cpu = <&CPU11>; + }; + }; + cluster3 { + core0 { + cpu = <&CPU12>; + }; + core1 { + cpu = <&CPU13>; + }; + core2 { + cpu = <&CPU14>; + }; + core3 { + cpu = <&CPU15>; + }; + }; + }; + + CPU0: cpu@0 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0x00>; + clock-frequency= <1400000000>; + cpu-release-addr = <0>; // Fixed by the boot loader + }; + + CPU1: cpu@1 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0x01>; + clock-frequency= <1400000000>; + cpu-release-addr = <0>; // Fixed by the boot loader + }; + + CPU2: cpu@2 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0x02>; + clock-frequency= <1400000000>; + cpu-release-addr = <0>; // Fixed by the boot loader + }; + + CPU3: cpu@3 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0x03>; + clock-frequency= <1400000000>; + cpu-release-addr = <0>; // Fixed by the boot loader + }; + + CPU4: cpu@100 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0x100>; + clock-frequency= <1400000000>; + cpu-release-addr = <0>; // Fixed by the boot loader + }; + + CPU5: cpu@101 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0x101>; + clock-frequency= <1400000000>; + cpu-release-addr = <0>; // Fixed by the boot loader + }; + + CPU6: cpu@102 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0x102>; + clock-frequency= <1400000000>; + cpu-release-addr = <0>; // Fixed by the boot loader + }; + + CPU7: cpu@103 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0x103>; + clock-frequency= <1400000000>; + cpu-release-addr = <0>; // Fixed by the boot loader + }; + + CPU8: cpu@200 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0x200>; + clock-frequency= <1400000000>; + cpu-release-addr = <0>; // Fixed by the boot loader + }; + + CPU9: cpu@201 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0x201>; + clock-frequency= <1400000000>; + cpu-release-addr = <0>; // Fixed by the boot loader + }; + + CPU10: cpu@202 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0x202>; + clock-frequency= <1400000000>; + cpu-release-addr = <0>; // Fixed by the boot loader + }; + + CPU11: cpu@203 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0x203>; + clock-frequency= <1400000000>; + cpu-release-addr = <0>; // Fixed by the boot loader + }; + + CPU12: cpu@300 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0x300>; + clock-frequency= <1400000000>; + cpu-release-addr = <0>; // Fixed by the boot loader + }; + + CPU13: cpu@301 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0x301>; + clock-frequency= <1400000000>; + cpu-release-addr = <0>; // Fixed by the boot loader + }; + + CPU14: cpu@302 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0x302>; + clock-frequency= <1400000000>; + cpu-release-addr = <0>; // Fixed by the boot loader + }; + + CPU15: cpu@303 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0x303>; + clock-frequency= <1400000000>; + cpu-release-addr = <0>; // Fixed by the boot loader + }; + }; +}; diff --git a/arch/arm/boot/dts/axm55xx.dtsi b/arch/arm/boot/dts/axm55xx.dtsi new file mode 100644 index 000000000000..3fbd83c2a179 --- /dev/null +++ b/arch/arm/boot/dts/axm55xx.dtsi @@ -0,0 +1,199 @@ +/* + * arch/arm/boot/dts/axm55xx.dtsi + * + * Copyright (C) 2013 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. + */ + +#include +#include + +#include "skeleton64.dtsi" + +/ { + interrupt-parent = <&gic>; + + aliases { + serial0 = &serial0; + serial1 = &serial1; + serial2 = &serial2; + serial3 = &serial3; + timer = &timer0; + }; + + clocks { + compatible = "simple-bus"; + #address-cells = <2>; + #size-cells = <2>; + ranges; + + clk_ref0: clk_ref0 { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <125000000>; + }; + + clk_ref1: clk_ref1 { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <125000000>; + }; + + clk_ref2: clk_ref2 { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <125000000>; + }; + + clks: clock-controller@2010020000 { + compatible = "lsi,axm5516-clks"; + #clock-cells = <1>; + reg = <0x20 0x10020000 0 0x20000>; + }; + }; + + gic: interrupt-controller@2001001000 { + compatible = "arm,cortex-a15-gic"; + #interrupt-cells = <3>; + #address-cells = <0>; + interrupt-controller; + reg = <0x20 0x01001000 0 0x1000>, + <0x20 0x01002000 0 0x1000>, + <0x20 0x01004000 0 0x2000>, + <0x20 0x01006000 0 0x2000>; + interrupts = ; + }; + + timer { + compatible = "arm,armv7-timer"; + interrupts = + , + , + , + ; + }; + + + pmu { + compatible = "arm,cortex-a15-pmu"; + interrupts = ; + }; + + soc { + compatible = "simple-bus"; + device_type = "soc"; + #address-cells = <2>; + #size-cells = <2>; + interrupt-parent = <&gic>; + ranges; + + syscon: syscon@2010030000 { + compatible = "lsi,axxia-syscon", "syscon"; + reg = <0x20 0x10030000 0 0x2000>; + }; + + amba { + compatible = "arm,amba-bus"; + #address-cells = <2>; + #size-cells = <2>; + ranges; + + serial0: uart@2010080000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0x20 0x10080000 0 0x1000>; + interrupts = ; + clocks = <&clks AXXIA_CLK_PER>; + clock-names = "apb_pclk"; + status = "disabled"; + }; + + serial1: uart@2010081000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0x20 0x10081000 0 0x1000>; + interrupts = ; + clocks = <&clks AXXIA_CLK_PER>; + clock-names = "apb_pclk"; + status = "disabled"; + }; + + serial2: uart@2010082000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0x20 0x10082000 0 0x1000>; + interrupts = ; + clocks = <&clks AXXIA_CLK_PER>; + clock-names = "apb_pclk"; + status = "disabled"; + }; + + serial3: uart@2010083000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0x20 0x10083000 0 0x1000>; + interrupts = ; + clocks = <&clks AXXIA_CLK_PER>; + clock-names = "apb_pclk"; + status = "disabled"; + }; + + timer0: timer@2010091000 { + compatible = "arm,sp804", "arm,primecell"; + reg = <0x20 0x10091000 0 0x1000>; + interrupts = , + , + , + , + , + , + , + , + ; + clocks = <&clks AXXIA_CLK_PER>; + clock-names = "apb_pclk"; + status = "okay"; + }; + + gpio0: gpio@2010092000 { + #gpio-cells = <2>; + compatible = "arm,pl061", "arm,primecell"; + gpio-controller; + reg = <0x20 0x10092000 0x00 0x1000>; + interrupts = , + , + , + , + , + , + , + ; + clocks = <&clks AXXIA_CLK_PER>; + clock-names = "apb_pclk"; + status = "disabled"; + }; + + gpio1: gpio@2010093000 { + #gpio-cells = <2>; + compatible = "arm,pl061", "arm,primecell"; + gpio-controller; + reg = <0x20 0x10093000 0x00 0x1000>; + interrupts = ; + clocks = <&clks AXXIA_CLK_PER>; + clock-names = "apb_pclk"; + status = "disabled"; + }; + }; + }; +}; + +/* + Local Variables: + mode: C + End: +*/ From 2baa4559ab7c934b3b6ced33e6e369081f27e7df Mon Sep 17 00:00:00 2001 From: Anders Berg Date: Fri, 23 May 2014 11:08:37 +0200 Subject: [PATCH 3/5] ARM: axxia: Adding defconfig for AXM55xx Add a defconfig file for the LSI Axxia family of devices (CONFIG_ARCH_AXXIA). Signed-off-by: Anders Berg Acked-by: Linus Walleij Signed-off-by: Arnd Bergmann --- arch/arm/configs/axm55xx_defconfig | 248 +++++++++++++++++++++++++++++ 1 file changed, 248 insertions(+) create mode 100644 arch/arm/configs/axm55xx_defconfig diff --git a/arch/arm/configs/axm55xx_defconfig b/arch/arm/configs/axm55xx_defconfig new file mode 100644 index 000000000000..d3260d7d5af1 --- /dev/null +++ b/arch/arm/configs/axm55xx_defconfig @@ -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 From 4a315e3457e008e0570c392822ae98cdf7761227 Mon Sep 17 00:00:00 2001 From: Anders Berg Date: Fri, 23 May 2014 11:08:38 +0200 Subject: [PATCH 4/5] power: reset: Add Axxia system reset driver Add Axxia (AXM55xx) SoC system reset driver. This driver handles only system reboot (and not power-off). Signed-off-by: Anders Berg Cc: Dmitry Eremin-Solenikov Cc: David Woodhouse Acked-by: Linus Walleij Signed-off-by: Arnd Bergmann --- .../bindings/power_supply/axxia-reset.txt | 20 +++++ drivers/power/reset/Kconfig | 8 ++ drivers/power/reset/Makefile | 1 + drivers/power/reset/axxia-reset.c | 88 +++++++++++++++++++ 4 files changed, 117 insertions(+) create mode 100644 Documentation/devicetree/bindings/power_supply/axxia-reset.txt create mode 100644 drivers/power/reset/axxia-reset.c diff --git a/Documentation/devicetree/bindings/power_supply/axxia-reset.txt b/Documentation/devicetree/bindings/power_supply/axxia-reset.txt new file mode 100644 index 000000000000..47e720d249d2 --- /dev/null +++ b/Documentation/devicetree/bindings/power_supply/axxia-reset.txt @@ -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@2010030000 { + compatible = "lsi,axxia-syscon", "syscon"; + reg = <0x20 0x10030000 0 0x2000>; + }; + + reset: reset@2010031000 { + compatible = "lsi,axm55xx-reset"; + syscon = <&syscon>; + }; diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig index fa0e4e057b99..49b46e6ca959 100644 --- a/drivers/power/reset/Kconfig +++ b/drivers/power/reset/Kconfig @@ -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 diff --git a/drivers/power/reset/Makefile b/drivers/power/reset/Makefile index a5b4a77d1a41..16c0516e5a19 100644 --- a/drivers/power/reset/Makefile +++ b/drivers/power/reset/Makefile @@ -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 diff --git a/drivers/power/reset/axxia-reset.c b/drivers/power/reset/axxia-reset.c new file mode 100644 index 000000000000..3b1f8d601784 --- /dev/null +++ b/drivers/power/reset/axxia-reset.c @@ -0,0 +1,88 @@ +/* + * Reset driver for Axxia devices + * + * Copyright (C) 2014 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 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + + +#define SC_CRIT_WRITE_KEY 0x1000 +#define SC_LATCH_ON_RESET 0x1004 +#define SC_RESET_CONTROL 0x1008 +#define RSTCTL_RST_ZERO (1<<3) +#define RSTCTL_RST_FAB (1<<2) +#define RSTCTL_RST_CHIP (1<<1) +#define RSTCTL_RST_SYS (1<<0) +#define SC_EFUSE_INT_STATUS 0x180c +#define EFUSE_READ_DONE (1<<31) + +static struct regmap *syscon; + +static void do_axxia_restart(enum reboot_mode reboot_mode, const char *cmd) +{ + /* Access Key (0xab) */ + regmap_write(syscon, SC_CRIT_WRITE_KEY, 0xab); + /* Select internal boot from 0xffff0000 */ + regmap_write(syscon, SC_LATCH_ON_RESET, 0x00000040); + /* Assert ResetReadDone (to avoid hanging in boot ROM) */ + regmap_write(syscon, SC_EFUSE_INT_STATUS, EFUSE_READ_DONE); + /* Assert chip reset */ + regmap_update_bits(syscon, SC_RESET_CONTROL, + RSTCTL_RST_CHIP, RSTCTL_RST_CHIP); +} + +static int axxia_reset_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + + syscon = syscon_regmap_lookup_by_phandle(dev->of_node, "syscon"); + if (IS_ERR(syscon)) { + pr_err("%s: syscon lookup failed\n", dev->of_node->name); + return PTR_ERR(syscon); + } + + arm_pm_restart = do_axxia_restart; + + return 0; +} + +static const struct of_device_id of_axxia_reset_match[] = { + { .compatible = "lsi,axm55xx-reset", }, + {}, +}; +MODULE_DEVICE_TABLE(of, of_axxia_reset_match); + +static struct platform_driver axxia_reset_driver = { + .probe = axxia_reset_probe, + .driver = { + .name = "axxia-reset", + .of_match_table = of_match_ptr(of_axxia_reset_match), + }, +}; + +static int __init axxia_reset_init(void) +{ + return platform_driver_register(&axxia_reset_driver); +} +device_initcall(axxia_reset_init); From 61d45495779c54d40a447d6d9a14d6f7863780b2 Mon Sep 17 00:00:00 2001 From: Anders Berg Date: Fri, 23 May 2014 11:08:39 +0200 Subject: [PATCH 5/5] ARM: dts: axxia: Add reset controller Add the reset controller to the AXM5xx device tree. Signed-off-by: Anders Berg Acked-by: Linus Walleij Signed-off-by: Arnd Bergmann --- arch/arm/boot/dts/axm55xx.dtsi | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/boot/dts/axm55xx.dtsi b/arch/arm/boot/dts/axm55xx.dtsi index 3fbd83c2a179..ea288f0a1d39 100644 --- a/arch/arm/boot/dts/axm55xx.dtsi +++ b/arch/arm/boot/dts/axm55xx.dtsi @@ -101,6 +101,11 @@ reg = <0x20 0x10030000 0 0x2000>; }; + reset: reset@2010031000 { + compatible = "lsi,axm55xx-reset"; + syscon = <&syscon>; + }; + amba { compatible = "arm,amba-bus"; #address-cells = <2>;