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authorLinus Torvalds <torvalds@linux-foundation.org>2013-03-02 10:44:16 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2013-03-02 10:44:16 -0500
commitaebb2afd5420c860b7fbc3882a323ef1247fbf16 (patch)
tree05ee0efcebca5ec421de44de7a6d6271088c64a8 /Documentation
parent8eae508b7c6ff502a71d0293b69e97c5505d5840 (diff)
parentedb15d83a875a1f4b1576188844db5c330c3267d (diff)
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle: o Add basic support for the Mediatek/Ralink Wireless SoC family. o The Qualcomm Atheros platform is extended by support for the new QCA955X SoC series as well as a bunch of patches that get the code ready for OF support. o Lantiq and BCM47XX platform have a few improvements and bug fixes. o MIPS has sent a few patches that get the kernel ready for the upcoming microMIPS support. o The rest of the series is made up of small bug fixes and cleanups that relate to various parts of the MIPS code. The biggy in there is a whitespace cleanup. After I was sent another set of whitespace cleanup patches I decided it was the time to clean the whitespace "issues" for once and and that touches many files below arch/mips/. Fix up silly conflicts, mostly due to whitespace cleanups. * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (105 commits) MIPS: Quit exporting kernel internel break codes to uapi/asm/break.h MIPS: remove broken conditional inside vpe loader code MIPS: SMTC: fix implicit declaration of set_vi_handler MIPS: early_printk: drop __init annotations MIPS: Probe for and report hardware virtualization support. MIPS: ath79: add support for the Qualcomm Atheros AP136-010 board MIPS: ath79: add USB controller registration code for the QCA955X SoCs MIPS: ath79: add PCI controller registration code for the QCA955X SoCs MIPS: ath79: add WMAC registration code for the QCA955X SoCs MIPS: ath79: register UART for the QCA955X SoCs MIPS: ath79: add QCA955X specific glue to ath79_device_reset_{set, clear} MIPS: ath79: add GPIO setup code for the QCA955X SoCs MIPS: ath79: add IRQ handling code for the QCA955X SoCs MIPS: ath79: add clock setup code for the QCA955X SoCs MIPS: ath79: add SoC detection code for the QCA955X SoCs MIPS: ath79: add early printk support for the QCA955X SoCs MIPS: ath79: fix WMAC IRQ resource assignment mips: reserve elfcorehdr mips: Make sure kernel memory is in iomem MIPS: ath79: use dynamically allocated USB platform devices ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/mips/cpu_irq.txt47
-rw-r--r--Documentation/devicetree/bindings/serial/lantiq_asc.txt16
2 files changed, 63 insertions, 0 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 @@
1MIPS CPU interrupt controller
2
3On MIPS the mips_cpu_intc_init() helper can be used to initialize the 8 CPU
4IRQs from a devicetree file and create a irq_domain for IRQ controller.
5
6With the irq_domain in place we can describe how the 8 IRQs are wired to the
7platforms internal interrupt controller cascade.
8
9Below is an example of a platform describing the cascade inside the devicetree
10and the code used to load it inside arch_init_irq().
11
12Required properties:
13- compatible : Should be "mti,cpu-interrupt-controller"
14
15Example 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
37Example platform irq.c:
38static 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
44void __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 @@
1Lantiq SoC ASC serial controller
2
3Required 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
9Example:
10
11asc1: serial@E100C00 {
12 compatible = "lantiq,asc";
13 reg = <0xE100C00 0x400>;
14 interrupt-parent = <&icu0>;
15 interrupts = <112 113 114>;
16};