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authorLinus Torvalds <torvalds@linux-foundation.org>2014-12-10 01:38:28 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-10 01:38:28 +0300
commit6cd94d5e57ab97ddd672b707ab4bb639672c1727 (patch)
treeb1b301b16433d4deab6bd52e81d04a7b58c239d3 /Documentation
parent6c9e92476bc924ede6d6d2f0bfed2c06ae148d29 (diff)
parent842f7d2c4d392c0571cf72e3eaca26742bebbd1e (diff)
downloadlinux-6cd94d5e57ab97ddd672b707ab4bb639672c1727.tar.xz
Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform changes from Arnd Bergmann: "New and updated SoC support, notable changes include: - bcm: brcmstb SMP support initial iproc/cygnus support - exynos: Exynos4415 SoC support PMU and suspend support for Exynos5420 PMU support for Exynos3250 pm related maintenance - imx: new LS1021A SoC support vybrid 610 global timer support - integrator: convert to using multiplatform configuration - mediatek: earlyprintk support for mt8127/mt8135 - meson: meson8 soc and l2 cache controller support - mvebu: Armada 38x CPU hotplug support drop support for prerelease Armada 375 Z1 stepping extended suspend support, now works on Armada 370/XP - omap: hwmod related maintenance prcm cleanup - pxa: initial pxa27x DT handling - rockchip: SMP support for rk3288 add cpu frequency scaling support - shmobile: r8a7740 power domain support various small restart, timer, pci apmu changes - sunxi: Allwinner A80 (sun9i) earlyprintk support - ux500: power domain support Overall, a significant chunk of changes, coming mostly from the usual suspects: omap, shmobile, samsung and mvebu, all of which already contain a lot of platform specific code in arch/arm" * tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (187 commits) ARM: mvebu: use the cpufreq-dt platform_data for independent clocks soc: integrator: Add terminating entry for integrator_cm_match ARM: mvebu: add SDRAM controller description for Armada XP ARM: mvebu: adjust mbus controller description on Armada 370/XP ARM: mvebu: add suspend/resume DT information for Armada XP GP ARM: mvebu: synchronize secondary CPU clocks on resume ARM: mvebu: make sure MMU is disabled in armada_370_xp_cpu_resume ARM: mvebu: Armada XP GP specific suspend/resume code ARM: mvebu: reserve the first 10 KB of each memory bank for suspend/resume ARM: mvebu: implement suspend/resume support for Armada XP clk: mvebu: add suspend/resume for gatable clocks bus: mvebu-mbus: provide a mechanism to save SDRAM window configuration bus: mvebu-mbus: suspend/resume support clocksource: time-armada-370-xp: add suspend/resume support irqchip: armada-370-xp: Add suspend/resume support ARM: add lolevel debug support for asm9260 ARM: add mach-asm9260 ARM: EXYNOS: use u8 for val[] in struct exynos_pmu_conf power: reset: imx-snvs-poweroff: add power off driver for i.mx6 ARM: imx: temporarily remove CONFIG_SOC_FSL from LS1021A ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/arm/firmware.txt28
-rw-r--r--Documentation/arm/sunxi/README16
-rw-r--r--Documentation/devicetree/bindings/arm/amlogic.txt8
-rw-r--r--Documentation/devicetree/bindings/arm/cpus.txt9
-rw-r--r--Documentation/devicetree/bindings/arm/sunxi.txt12
-rw-r--r--Documentation/devicetree/bindings/arm/ux500/power_domain.txt35
-rw-r--r--Documentation/devicetree/bindings/bus/mvebu-mbus.txt17
-rw-r--r--Documentation/devicetree/bindings/memory-controllers/mvebu-sdram-controller.txt21
-rw-r--r--Documentation/devicetree/bindings/power_supply/imx-snvs-poweroff.txt23
-rw-r--r--Documentation/devicetree/bindings/vendor-prefixes.txt1
10 files changed, 134 insertions, 36 deletions
diff --git a/Documentation/arm/firmware.txt b/Documentation/arm/firmware.txt
index c2e468fe7b0b..da6713adac8a 100644
--- a/Documentation/arm/firmware.txt
+++ b/Documentation/arm/firmware.txt
@@ -7,32 +7,14 @@ world, which changes the way some things have to be initialized. This makes
a need to provide an interface for such platforms to specify available firmware
operations and call them when needed.
-Firmware operations can be specified using struct firmware_ops
-
- struct firmware_ops {
- /*
- * Enters CPU idle mode
- */
- int (*do_idle)(void);
- /*
- * Sets boot address of specified physical CPU
- */
- int (*set_cpu_boot_addr)(int cpu, unsigned long boot_addr);
- /*
- * Boots specified physical CPU
- */
- int (*cpu_boot)(int cpu);
- /*
- * Initializes L2 cache
- */
- int (*l2x0_init)(void);
- };
-
-and then registered with register_firmware_ops function
+Firmware operations can be specified by filling in a struct firmware_ops
+with appropriate callbacks and then registering it with register_firmware_ops()
+function.
void register_firmware_ops(const struct firmware_ops *ops)
-the ops pointer must be non-NULL.
+The ops pointer must be non-NULL. More information about struct firmware_ops
+and its members can be found in arch/arm/include/asm/firmware.h header.
There is a default, empty set of operations provided, so there is no need to
set anything if platform does not require firmware operations.
diff --git a/Documentation/arm/sunxi/README b/Documentation/arm/sunxi/README
index 7945238453ed..e68d163df33d 100644
--- a/Documentation/arm/sunxi/README
+++ b/Documentation/arm/sunxi/README
@@ -37,16 +37,26 @@ SunXi family
http://dl.linux-sunxi.org/A20/A20%20User%20Manual%202013-03-22.pdf
- Allwinner A23
- + Not Supported
+ + Datasheet
+ http://dl.linux-sunxi.org/A23/A23%20Datasheet%20V1.0%2020130830.pdf
+ + User Manual
+ http://dl.linux-sunxi.org/A23/A23%20User%20Manual%20V1.0%2020130830.pdf
* Quad ARM Cortex-A7 based SoCs
- Allwinner A31 (sun6i)
+ Datasheet
- http://dl.linux-sunxi.org/A31/A31%20Datasheet%20-%20v1.00%20(2012-12-24).pdf
+ http://dl.linux-sunxi.org/A31/A3x_release_document/A31/IC/A31%20datasheet%20V1.3%2020131106.pdf
+ + User Manual
+ http://dl.linux-sunxi.org/A31/A3x_release_document/A31/IC/A31%20user%20manual%20V1.1%2020130630.pdf
- Allwinner A31s (sun6i)
+ Not Supported
+ + Datasheet
+ http://dl.linux-sunxi.org/A31/A3x_release_document/A31s/IC/A31s%20datasheet%20V1.3%2020131106.pdf
+ + User Manual
+ http://dl.linux-sunxi.org/A31/A3x_release_document/A31s/IC/A31s%20User%20Manual%20%20V1.0%2020130322.pdf
* Quad ARM Cortex-A15, Quad ARM Cortex-A7 based SoCs
- Allwinner A80
- + Not Supported \ No newline at end of file
+ + Datasheet
+ http://dl.linux-sunxi.org/A80/A80_Datasheet_Revision_1.0_0404.pdf
diff --git a/Documentation/devicetree/bindings/arm/amlogic.txt b/Documentation/devicetree/bindings/arm/amlogic.txt
index 7eece72b1a35..8fe815046140 100644
--- a/Documentation/devicetree/bindings/arm/amlogic.txt
+++ b/Documentation/devicetree/bindings/arm/amlogic.txt
@@ -2,7 +2,9 @@ Amlogic MesonX device tree bindings
-------------------------------------------
Boards with the Amlogic Meson6 SoC shall have the following properties:
+ Required root node property:
+ compatible: "amlogic,meson6"
-Required root node property:
-
-compatible = "amlogic,meson6";
+Boards with the Amlogic Meson8 SoC shall have the following properties:
+ Required root node property:
+ compatible: "amlogic,meson8";
diff --git a/Documentation/devicetree/bindings/arm/cpus.txt b/Documentation/devicetree/bindings/arm/cpus.txt
index fc446347ab6d..b2aacbe16ed9 100644
--- a/Documentation/devicetree/bindings/arm/cpus.txt
+++ b/Documentation/devicetree/bindings/arm/cpus.txt
@@ -227,6 +227,15 @@ nodes to be present and contain the properties described below.
# List of phandles to idle state nodes supported
by this cpu [3].
+ - rockchip,pmu
+ Usage: optional for systems that have an "enable-method"
+ property value of "rockchip,rk3066-smp"
+ While optional, it is the preferred way to get access to
+ the cpu-core power-domains.
+ Value type: <phandle>
+ Definition: Specifies the syscon node controlling the cpu core
+ power domains.
+
Example 1 (dual-cluster big.LITTLE system 32-bit):
cpus {
diff --git a/Documentation/devicetree/bindings/arm/sunxi.txt b/Documentation/devicetree/bindings/arm/sunxi.txt
new file mode 100644
index 000000000000..42941fdefb11
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/sunxi.txt
@@ -0,0 +1,12 @@
+Allwinner sunXi Platforms Device Tree Bindings
+
+Each device tree must specify which Allwinner SoC it uses,
+using one of the following compatible strings:
+
+ allwinner,sun4i-a10
+ allwinner,sun5i-a10s
+ allwinner,sun5i-a13
+ allwinner,sun6i-a31
+ allwinner,sun7i-a20
+ allwinner,sun8i-a23
+ allwinner,sun9i-a80
diff --git a/Documentation/devicetree/bindings/arm/ux500/power_domain.txt b/Documentation/devicetree/bindings/arm/ux500/power_domain.txt
new file mode 100644
index 000000000000..5679d1742d3e
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/ux500/power_domain.txt
@@ -0,0 +1,35 @@
+* ST-Ericsson UX500 PM Domains
+
+UX500 supports multiple PM domains which are used to gate power to one or
+more peripherals on the SOC.
+
+The implementation of PM domains for UX500 are based upon the generic PM domain
+and use the corresponding DT bindings.
+
+==PM domain providers==
+
+Required properties:
+ - compatible: Must be "stericsson,ux500-pm-domains".
+ - #power-domain-cells : Number of cells in a power domain specifier, must be 1.
+
+Example:
+ pm_domains: pm_domains0 {
+ compatible = "stericsson,ux500-pm-domains";
+ #power-domain-cells = <1>;
+ };
+
+==PM domain consumers==
+
+Required properties:
+ - power-domains: A phandle and PM domain specifier. Below are the list of
+ valid specifiers:
+
+ Index Specifier
+ ----- ---------
+ 0 DOMAIN_VAPE
+
+Example:
+ sdi0_per1@80126000 {
+ compatible = "arm,pl18x", "arm,primecell";
+ power-domains = <&pm_domains DOMAIN_VAPE>
+ };
diff --git a/Documentation/devicetree/bindings/bus/mvebu-mbus.txt b/Documentation/devicetree/bindings/bus/mvebu-mbus.txt
index 5fa44f52a0b8..5e16c3ccb061 100644
--- a/Documentation/devicetree/bindings/bus/mvebu-mbus.txt
+++ b/Documentation/devicetree/bindings/bus/mvebu-mbus.txt
@@ -48,9 +48,12 @@ Required properties:
- compatible: Should be set to "marvell,mbus-controller".
- reg: Device's register space.
- Two entries are expected (see the examples below):
- the first one controls the devices decoding window and
- the second one controls the SDRAM decoding window.
+ Two or three entries are expected (see the examples below):
+ the first one controls the devices decoding window,
+ the second one controls the SDRAM decoding window and
+ the third controls the MBus bridge (only with the
+ marvell,armada370-mbus and marvell,armadaxp-mbus
+ compatible strings)
Example:
@@ -67,7 +70,7 @@ Example:
mbusc: mbus-controller@20000 {
compatible = "marvell,mbus-controller";
- reg = <0x20000 0x100>, <0x20180 0x20>;
+ reg = <0x20000 0x100>, <0x20180 0x20>, <0x20250 0x8>;
};
/* more children ...*/
@@ -126,7 +129,7 @@ are skipped.
mbusc: mbus-controller@20000 {
compatible = "marvell,mbus-controller";
- reg = <0x20000 0x100>, <0x20180 0x20>;
+ reg = <0x20000 0x100>, <0x20180 0x20>, <0x20250 0x8>;
};
/* more children ...*/
@@ -170,7 +173,7 @@ Using this macro, the above example would be:
mbusc: mbus-controller@20000 {
compatible = "marvell,mbus-controller";
- reg = <0x20000 0x100>, <0x20180 0x20>;
+ reg = <0x20000 0x100>, <0x20180 0x20>, <0x20250 0x8>;
};
/* other children */
@@ -266,7 +269,7 @@ See the example below, where a more complete device tree is shown:
ranges = <0 MBUS_ID(0xf0, 0x01) 0 0x100000>;
mbusc: mbus-controller@20000 {
- reg = <0x20000 0x100>, <0x20180 0x20>;
+ reg = <0x20000 0x100>, <0x20180 0x20>, <0x20250 0x8>;
};
interrupt-controller@20000 {
diff --git a/Documentation/devicetree/bindings/memory-controllers/mvebu-sdram-controller.txt b/Documentation/devicetree/bindings/memory-controllers/mvebu-sdram-controller.txt
new file mode 100644
index 000000000000..89657d1d4cd4
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/mvebu-sdram-controller.txt
@@ -0,0 +1,21 @@
+Device Tree bindings for MVEBU SDRAM controllers
+
+The Marvell EBU SoCs all have a SDRAM controller. The SDRAM controller
+differs from one SoC variant to another, but they also share a number
+of commonalities.
+
+For now, this Device Tree binding documentation only documents the
+Armada XP SDRAM controller.
+
+Required properties:
+
+ - compatible: for Armada XP, "marvell,armada-xp-sdram-controller"
+ - reg: a resource specifier for the register space, which should
+ include all SDRAM controller registers as per the datasheet.
+
+Example:
+
+sdramc@1400 {
+ compatible = "marvell,armada-xp-sdram-controller";
+ reg = <0x1400 0x500>;
+};
diff --git a/Documentation/devicetree/bindings/power_supply/imx-snvs-poweroff.txt b/Documentation/devicetree/bindings/power_supply/imx-snvs-poweroff.txt
new file mode 100644
index 000000000000..dc7c9bad63ea
--- /dev/null
+++ b/Documentation/devicetree/bindings/power_supply/imx-snvs-poweroff.txt
@@ -0,0 +1,23 @@
+i.mx6 Poweroff Driver
+
+SNVS_LPCR in SNVS module can power off the whole system by pull
+PMIC_ON_REQ low if PMIC_ON_REQ is connected with external PMIC.
+If you don't want to use PMIC_ON_REQ as power on/off control,
+please set status='disabled' to disable this driver.
+
+Required Properties:
+-compatible: "fsl,sec-v4.0-poweroff"
+-reg: Specifies the physical address of the SNVS_LPCR register
+
+Example:
+ snvs@020cc000 {
+ compatible = "fsl,sec-v4.0-mon", "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x020cc000 0x4000>;
+ .....
+ snvs_poweroff: snvs-poweroff@38 {
+ compatible = "fsl,sec-v4.0-poweroff";
+ reg = <0x38 0x4>;
+ };
+ }
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index a344ec2713a5..ecaf2035c2fe 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -91,6 +91,7 @@ lltc Linear Technology Corporation
marvell Marvell Technology Group Ltd.
maxim Maxim Integrated Products
mediatek MediaTek Inc.
+merrii Merrii Technology Co., Ltd.
micrel Micrel Inc.
microchip Microchip Technology Inc.
micron Micron Technology Inc.