diff options
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/mips/cpu_irq.txt | 47 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/serial/lantiq_asc.txt | 16 | ||||
-rw-r--r-- | Documentation/kernel-parameters.txt | 2 | ||||
-rw-r--r-- | Documentation/x86/boot.txt | 2 |
4 files changed, 65 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/mips/cpu_irq.txt b/Documentation/devicetree/bindings/mips/cpu_irq.txt new file mode 100644 index 000000000000..13aa4b62c62a --- /dev/null +++ b/Documentation/devicetree/bindings/mips/cpu_irq.txt | |||
@@ -0,0 +1,47 @@ | |||
1 | MIPS CPU interrupt controller | ||
2 | |||
3 | On MIPS the mips_cpu_intc_init() helper can be used to initialize the 8 CPU | ||
4 | IRQs from a devicetree file and create a irq_domain for IRQ controller. | ||
5 | |||
6 | With the irq_domain in place we can describe how the 8 IRQs are wired to the | ||
7 | platforms internal interrupt controller cascade. | ||
8 | |||
9 | Below is an example of a platform describing the cascade inside the devicetree | ||
10 | and the code used to load it inside arch_init_irq(). | ||
11 | |||
12 | Required properties: | ||
13 | - compatible : Should be "mti,cpu-interrupt-controller" | ||
14 | |||
15 | Example devicetree: | ||
16 | cpu-irq: cpu-irq@0 { | ||
17 | #address-cells = <0>; | ||
18 | |||
19 | interrupt-controller; | ||
20 | #interrupt-cells = <1>; | ||
21 | |||
22 | compatible = "mti,cpu-interrupt-controller"; | ||
23 | }; | ||
24 | |||
25 | intc: intc@200 { | ||
26 | compatible = "ralink,rt2880-intc"; | ||
27 | reg = <0x200 0x100>; | ||
28 | |||
29 | interrupt-controller; | ||
30 | #interrupt-cells = <1>; | ||
31 | |||
32 | interrupt-parent = <&cpu-irq>; | ||
33 | interrupts = <2>; | ||
34 | }; | ||
35 | |||
36 | |||
37 | Example platform irq.c: | ||
38 | static struct of_device_id __initdata of_irq_ids[] = { | ||
39 | { .compatible = "mti,cpu-interrupt-controller", .data = mips_cpu_intc_init }, | ||
40 | { .compatible = "ralink,rt2880-intc", .data = intc_of_init }, | ||
41 | {}, | ||
42 | }; | ||
43 | |||
44 | void __init arch_init_irq(void) | ||
45 | { | ||
46 | of_irq_init(of_irq_ids); | ||
47 | } | ||
diff --git a/Documentation/devicetree/bindings/serial/lantiq_asc.txt b/Documentation/devicetree/bindings/serial/lantiq_asc.txt new file mode 100644 index 000000000000..5b78591aaa46 --- /dev/null +++ b/Documentation/devicetree/bindings/serial/lantiq_asc.txt | |||
@@ -0,0 +1,16 @@ | |||
1 | Lantiq SoC ASC serial controller | ||
2 | |||
3 | Required properties: | ||
4 | - compatible : Should be "lantiq,asc" | ||
5 | - reg : Address and length of the register set for the device | ||
6 | - interrupts: the 3 (tx rx err) interrupt numbers. The interrupt specifier | ||
7 | depends on the interrupt-parent interrupt controller. | ||
8 | |||
9 | Example: | ||
10 | |||
11 | asc1: serial@E100C00 { | ||
12 | compatible = "lantiq,asc"; | ||
13 | reg = <0xE100C00 0x400>; | ||
14 | interrupt-parent = <&icu0>; | ||
15 | interrupts = <112 113 114>; | ||
16 | }; | ||
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 363e348bff9b..6c723811c0a0 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt | |||
@@ -2438,7 +2438,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. | |||
2438 | real-time workloads. It can also improve energy | 2438 | real-time workloads. It can also improve energy |
2439 | efficiency for asymmetric multiprocessors. | 2439 | efficiency for asymmetric multiprocessors. |
2440 | 2440 | ||
2441 | rcu_nocbs_poll [KNL,BOOT] | 2441 | rcu_nocb_poll [KNL,BOOT] |
2442 | Rather than requiring that offloaded CPUs | 2442 | Rather than requiring that offloaded CPUs |
2443 | (specified by rcu_nocbs= above) explicitly | 2443 | (specified by rcu_nocbs= above) explicitly |
2444 | awaken the corresponding "rcuoN" kthreads, | 2444 | awaken the corresponding "rcuoN" kthreads, |
diff --git a/Documentation/x86/boot.txt b/Documentation/x86/boot.txt index 3edb4c2887a1..e540fd67f767 100644 --- a/Documentation/x86/boot.txt +++ b/Documentation/x86/boot.txt | |||
@@ -57,7 +57,7 @@ Protocol 2.10: (Kernel 2.6.31) Added a protocol for relaxed alignment | |||
57 | Protocol 2.11: (Kernel 3.6) Added a field for offset of EFI handover | 57 | Protocol 2.11: (Kernel 3.6) Added a field for offset of EFI handover |
58 | protocol entry point. | 58 | protocol entry point. |
59 | 59 | ||
60 | Protocol 2.12: (Kernel 3.9) Added the xloadflags field and extension fields | 60 | Protocol 2.12: (Kernel 3.8) Added the xloadflags field and extension fields |
61 | to struct boot_params for for loading bzImage and ramdisk | 61 | to struct boot_params for for loading bzImage and ramdisk |
62 | above 4G in 64bit. | 62 | above 4G in 64bit. |
63 | 63 | ||