Merge branch 'dts-crossbar' into omap-for-v3.17/dt
diff --git a/Documentation/devicetree/bindings/arm/omap/crossbar.txt b/Documentation/devicetree/bindings/arm/omap/crossbar.txt
index fb88585..4139db3 100644
--- a/Documentation/devicetree/bindings/arm/omap/crossbar.txt
+++ b/Documentation/devicetree/bindings/arm/omap/crossbar.txt
@@ -10,6 +10,7 @@
- compatible : Should be "ti,irq-crossbar"
- reg: Base address and the size of the crossbar registers.
- ti,max-irqs: Total number of irqs available at the interrupt controller.
+- ti,max-crossbar-sources: Maximum number of crossbar sources that can be routed.
- ti,reg-size: Size of a individual register in bytes. Every individual
register is assumed to be of same size. Valid sizes are 1, 2, 4.
- ti,irqs-reserved: List of the reserved irq lines that are not muxed using
@@ -17,11 +18,46 @@
so crossbar bar driver should not consider them as free
lines.
+Optional properties:
+- ti,irqs-skip: This is similar to "ti,irqs-reserved", but these are for
+ SOC-specific hard-wiring of those irqs which unexpectedly bypasses the
+ crossbar. These irqs have a crossbar register, but still cannot be used.
+
+- ti,irqs-safe-map: integer which maps to a safe configuration to use
+ when the interrupt controller irq is unused (when not provided, default is 0)
+
Examples:
crossbar_mpu: @4a020000 {
compatible = "ti,irq-crossbar";
reg = <0x4a002a48 0x130>;
ti,max-irqs = <160>;
+ ti,max-crossbar-sources = <400>;
ti,reg-size = <2>;
ti,irqs-reserved = <0 1 2 3 5 6 131 132 139 140>;
+ ti,irqs-skip = <10 133 139 140>;
};
+
+Consumer:
+========
+See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt and
+Documentation/devicetree/bindings/arm/gic.txt for further details.
+
+An interrupt consumer on an SoC using crossbar will use:
+ interrupts = <GIC_SPI request_number interrupt_level>
+When the request number is between 0 to that described by
+"ti,max-crossbar-sources", it is assumed to be a crossbar mapping. If the
+request_number is greater than "ti,max-crossbar-sources", then it is mapped as a
+quirky hardware mapping direct to GIC.
+
+Example:
+ device_x@0x4a023000 {
+ /* Crossbar 8 used */
+ interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
+ ...
+ };
+
+ device_y@0x4a033000 {
+ /* Direct mapped GIC SPI 1 used */
+ interrupts = <GIC_SPI DIRECT_IRQ(1) IRQ_TYPE_LEVEL_HIGH>;
+ ...
+ };
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index c29945e..961be6b 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -12,6 +12,9 @@
#include "skeleton.dtsi"
+#define MAX_SOURCES 400
+#define DIRECT_IRQ(irq) (MAX_SOURCES + irq)
+
/ {
#address-cells = <1>;
#size-cells = <1>;
@@ -45,6 +48,7 @@
compatible = "arm,cortex-a15-gic";
interrupt-controller;
#interrupt-cells = <3>;
+ arm,routable-irqs = <192>;
reg = <0x48211000 0x1000>,
<0x48212000 0x1000>,
<0x48214000 0x2000>,
@@ -79,8 +83,8 @@
ti,hwmods = "l3_main_1", "l3_main_2";
reg = <0x44000000 0x1000000>,
<0x45000000 0x1000>;
- interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI DIRECT_IRQ(10) IRQ_TYPE_LEVEL_HIGH>;
prm: prm@4ae06000 {
compatible = "ti,dra7-prm";
@@ -155,10 +159,10 @@
sdma: dma-controller@4a056000 {
compatible = "ti,omap4430-sdma";
reg = <0x4a056000 0x1000>;
- interrupts = <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>;
+ interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
#dma-cells = <1>;
#dma-channels = <32>;
#dma-requests = <127>;
@@ -167,7 +171,7 @@
gpio1: gpio@4ae10000 {
compatible = "ti,omap4-gpio";
reg = <0x4ae10000 0x200>;
- interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "gpio1";
gpio-controller;
#gpio-cells = <2>;
@@ -178,7 +182,7 @@
gpio2: gpio@48055000 {
compatible = "ti,omap4-gpio";
reg = <0x48055000 0x200>;
- interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "gpio2";
gpio-controller;
#gpio-cells = <2>;
@@ -189,7 +193,7 @@
gpio3: gpio@48057000 {
compatible = "ti,omap4-gpio";
reg = <0x48057000 0x200>;
- interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "gpio3";
gpio-controller;
#gpio-cells = <2>;
@@ -200,7 +204,7 @@
gpio4: gpio@48059000 {
compatible = "ti,omap4-gpio";
reg = <0x48059000 0x200>;
- interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "gpio4";
gpio-controller;
#gpio-cells = <2>;
@@ -211,7 +215,7 @@
gpio5: gpio@4805b000 {
compatible = "ti,omap4-gpio";
reg = <0x4805b000 0x200>;
- interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "gpio5";
gpio-controller;
#gpio-cells = <2>;
@@ -222,7 +226,7 @@
gpio6: gpio@4805d000 {
compatible = "ti,omap4-gpio";
reg = <0x4805d000 0x200>;
- interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "gpio6";
gpio-controller;
#gpio-cells = <2>;
@@ -233,7 +237,7 @@
gpio7: gpio@48051000 {
compatible = "ti,omap4-gpio";
reg = <0x48051000 0x200>;
- interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "gpio7";
gpio-controller;
#gpio-cells = <2>;
@@ -244,7 +248,7 @@
gpio8: gpio@48053000 {
compatible = "ti,omap4-gpio";
reg = <0x48053000 0x200>;
- interrupts = <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "gpio8";
gpio-controller;
#gpio-cells = <2>;
@@ -255,7 +259,7 @@
uart1: serial@4806a000 {
compatible = "ti,omap4-uart";
reg = <0x4806a000 0x100>;
- interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "uart1";
clock-frequency = <48000000>;
status = "disabled";
@@ -264,7 +268,7 @@
uart2: serial@4806c000 {
compatible = "ti,omap4-uart";
reg = <0x4806c000 0x100>;
- interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "uart2";
clock-frequency = <48000000>;
status = "disabled";
@@ -273,7 +277,7 @@
uart3: serial@48020000 {
compatible = "ti,omap4-uart";
reg = <0x48020000 0x100>;
- interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "uart3";
clock-frequency = <48000000>;
status = "disabled";
@@ -282,7 +286,7 @@
uart4: serial@4806e000 {
compatible = "ti,omap4-uart";
reg = <0x4806e000 0x100>;
- interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "uart4";
clock-frequency = <48000000>;
status = "disabled";
@@ -291,7 +295,7 @@
uart5: serial@48066000 {
compatible = "ti,omap4-uart";
reg = <0x48066000 0x100>;
- interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "uart5";
clock-frequency = <48000000>;
status = "disabled";
@@ -300,7 +304,7 @@
uart6: serial@48068000 {
compatible = "ti,omap4-uart";
reg = <0x48068000 0x100>;
- interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "uart6";
clock-frequency = <48000000>;
status = "disabled";
@@ -309,6 +313,7 @@
uart7: serial@48420000 {
compatible = "ti,omap4-uart";
reg = <0x48420000 0x100>;
+ interrupts = <GIC_SPI 218 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "uart7";
clock-frequency = <48000000>;
status = "disabled";
@@ -317,6 +322,7 @@
uart8: serial@48422000 {
compatible = "ti,omap4-uart";
reg = <0x48422000 0x100>;
+ interrupts = <GIC_SPI 219 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "uart8";
clock-frequency = <48000000>;
status = "disabled";
@@ -325,6 +331,7 @@
uart9: serial@48424000 {
compatible = "ti,omap4-uart";
reg = <0x48424000 0x100>;
+ interrupts = <GIC_SPI 220 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "uart9";
clock-frequency = <48000000>;
status = "disabled";
@@ -333,6 +340,7 @@
uart10: serial@4ae2b000 {
compatible = "ti,omap4-uart";
reg = <0x4ae2b000 0x100>;
+ interrupts = <GIC_SPI 221 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "uart10";
clock-frequency = <48000000>;
status = "disabled";
@@ -341,7 +349,7 @@
timer1: timer@4ae18000 {
compatible = "ti,omap5430-timer";
reg = <0x4ae18000 0x80>;
- interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "timer1";
ti,timer-alwon;
};
@@ -349,28 +357,28 @@
timer2: timer@48032000 {
compatible = "ti,omap5430-timer";
reg = <0x48032000 0x80>;
- interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "timer2";
};
timer3: timer@48034000 {
compatible = "ti,omap5430-timer";
reg = <0x48034000 0x80>;
- interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "timer3";
};
timer4: timer@48036000 {
compatible = "ti,omap5430-timer";
reg = <0x48036000 0x80>;
- interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "timer4";
};
timer5: timer@48820000 {
compatible = "ti,omap5430-timer";
reg = <0x48820000 0x80>;
- interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "timer5";
ti,timer-dsp;
};
@@ -378,7 +386,7 @@
timer6: timer@48822000 {
compatible = "ti,omap5430-timer";
reg = <0x48822000 0x80>;
- interrupts = <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "timer6";
ti,timer-dsp;
ti,timer-pwm;
@@ -387,7 +395,7 @@
timer7: timer@48824000 {
compatible = "ti,omap5430-timer";
reg = <0x48824000 0x80>;
- interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "timer7";
ti,timer-dsp;
};
@@ -395,7 +403,7 @@
timer8: timer@48826000 {
compatible = "ti,omap5430-timer";
reg = <0x48826000 0x80>;
- interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "timer8";
ti,timer-dsp;
ti,timer-pwm;
@@ -404,21 +412,21 @@
timer9: timer@4803e000 {
compatible = "ti,omap5430-timer";
reg = <0x4803e000 0x80>;
- interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "timer9";
};
timer10: timer@48086000 {
compatible = "ti,omap5430-timer";
reg = <0x48086000 0x80>;
- interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "timer10";
};
timer11: timer@48088000 {
compatible = "ti,omap5430-timer";
reg = <0x48088000 0x80>;
- interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "timer11";
ti,timer-pwm;
};
@@ -426,6 +434,7 @@
timer13: timer@48828000 {
compatible = "ti,omap5430-timer";
reg = <0x48828000 0x80>;
+ interrupts = <GIC_SPI 339 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "timer13";
status = "disabled";
};
@@ -433,6 +442,7 @@
timer14: timer@4882a000 {
compatible = "ti,omap5430-timer";
reg = <0x4882a000 0x80>;
+ interrupts = <GIC_SPI 340 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "timer14";
status = "disabled";
};
@@ -440,6 +450,7 @@
timer15: timer@4882c000 {
compatible = "ti,omap5430-timer";
reg = <0x4882c000 0x80>;
+ interrupts = <GIC_SPI 341 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "timer15";
status = "disabled";
};
@@ -447,6 +458,7 @@
timer16: timer@4882e000 {
compatible = "ti,omap5430-timer";
reg = <0x4882e000 0x80>;
+ interrupts = <GIC_SPI 342 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "timer16";
status = "disabled";
};
@@ -454,7 +466,7 @@
wdt2: wdt@4ae14000 {
compatible = "ti,omap4-wdt";
reg = <0x4ae14000 0x80>;
- interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "wd_timer2";
};
@@ -468,14 +480,14 @@
dmm@4e000000 {
compatible = "ti,omap5-dmm";
reg = <0x4e000000 0x800>;
- interrupts = <0 113 0x4>;
+ interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "dmm";
};
i2c1: i2c@48070000 {
compatible = "ti,omap4-i2c";
reg = <0x48070000 0x100>;
- interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
ti,hwmods = "i2c1";
@@ -485,7 +497,7 @@
i2c2: i2c@48072000 {
compatible = "ti,omap4-i2c";
reg = <0x48072000 0x100>;
- interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
ti,hwmods = "i2c2";
@@ -495,7 +507,7 @@
i2c3: i2c@48060000 {
compatible = "ti,omap4-i2c";
reg = <0x48060000 0x100>;
- interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
ti,hwmods = "i2c3";
@@ -505,7 +517,7 @@
i2c4: i2c@4807a000 {
compatible = "ti,omap4-i2c";
reg = <0x4807a000 0x100>;
- interrupts = <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
ti,hwmods = "i2c4";
@@ -515,7 +527,7 @@
i2c5: i2c@4807c000 {
compatible = "ti,omap4-i2c";
reg = <0x4807c000 0x100>;
- interrupts = <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
ti,hwmods = "i2c5";
@@ -525,7 +537,7 @@
mmc1: mmc@4809c000 {
compatible = "ti,omap4-hsmmc";
reg = <0x4809c000 0x400>;
- interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "mmc1";
ti,dual-volt;
ti,needs-special-reset;
@@ -538,7 +550,7 @@
mmc2: mmc@480b4000 {
compatible = "ti,omap4-hsmmc";
reg = <0x480b4000 0x400>;
- interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "mmc2";
ti,needs-special-reset;
dmas = <&sdma 47>, <&sdma 48>;
@@ -549,7 +561,7 @@
mmc3: mmc@480ad000 {
compatible = "ti,omap4-hsmmc";
reg = <0x480ad000 0x400>;
- interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "mmc3";
ti,needs-special-reset;
dmas = <&sdma 77>, <&sdma 78>;
@@ -560,7 +572,7 @@
mmc4: mmc@480d1000 {
compatible = "ti,omap4-hsmmc";
reg = <0x480d1000 0x400>;
- interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "mmc4";
ti,needs-special-reset;
dmas = <&sdma 57>, <&sdma 58>;
@@ -703,7 +715,7 @@
mcspi1: spi@48098000 {
compatible = "ti,omap4-mcspi";
reg = <0x48098000 0x200>;
- interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
ti,hwmods = "mcspi1";
@@ -724,7 +736,7 @@
mcspi2: spi@4809a000 {
compatible = "ti,omap4-mcspi";
reg = <0x4809a000 0x200>;
- interrupts = <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
ti,hwmods = "mcspi2";
@@ -740,7 +752,7 @@
mcspi3: spi@480b8000 {
compatible = "ti,omap4-mcspi";
reg = <0x480b8000 0x200>;
- interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
ti,hwmods = "mcspi3";
@@ -753,7 +765,7 @@
mcspi4: spi@480ba000 {
compatible = "ti,omap4-mcspi";
reg = <0x480ba000 0x200>;
- interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
ti,hwmods = "mcspi4";
@@ -773,7 +785,7 @@
clocks = <&qspi_gfclk_div>;
clock-names = "fck";
num-cs = <4>;
- interrupts = <0 343 0x4>;
+ interrupts = <GIC_SPI 343 IRQ_TYPE_LEVEL_HIGH>;
status = "disabled";
};
@@ -809,7 +821,7 @@
sata: sata@4a141100 {
compatible = "snps,dwc-ahci";
reg = <0x4a140000 0x1100>, <0x4a141100 0x7>;
- interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
phys = <&sata_phy>;
phy-names = "sata-phy";
clocks = <&sata_ref_clk>;
@@ -886,7 +898,7 @@
compatible = "ti,dwc3";
ti,hwmods = "usb_otg_ss1";
reg = <0x48880000 0x10000>;
- interrupts = <0 77 4>;
+ interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <1>;
utmi-mode = <2>;
@@ -894,7 +906,7 @@
usb1: usb@48890000 {
compatible = "snps,dwc3";
reg = <0x48890000 0x17000>;
- interrupts = <0 76 4>;
+ interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
phys = <&usb2_phy1>, <&usb3_phy1>;
phy-names = "usb2-phy", "usb3-phy";
tx-fifo-resize;
@@ -907,7 +919,7 @@
compatible = "ti,dwc3";
ti,hwmods = "usb_otg_ss2";
reg = <0x488c0000 0x10000>;
- interrupts = <0 92 4>;
+ interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <1>;
utmi-mode = <2>;
@@ -915,7 +927,7 @@
usb2: usb@488d0000 {
compatible = "snps,dwc3";
reg = <0x488d0000 0x17000>;
- interrupts = <0 78 4>;
+ interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
phys = <&usb2_phy2>;
phy-names = "usb2-phy";
tx-fifo-resize;
@@ -929,7 +941,7 @@
compatible = "ti,dwc3";
ti,hwmods = "usb_otg_ss3";
reg = <0x48900000 0x10000>;
- /* interrupts = <0 TBD 4>; */
+ interrupts = <GIC_SPI 344 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <1>;
utmi-mode = <2>;
@@ -938,7 +950,7 @@
usb3: usb@48910000 {
compatible = "snps,dwc3";
reg = <0x48910000 0x17000>;
- /* interrupts = <0 93 4>; */
+ interrupts = <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>;
tx-fifo-resize;
maximum-speed = "high-speed";
dr_mode = "otg";
@@ -949,7 +961,7 @@
compatible = "ti,dwc3";
ti,hwmods = "usb_otg_ss4";
reg = <0x48940000 0x10000>;
- /* interrupts = <0 TBD 4>; */
+ interrupts = <GIC_SPI 346 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <1>;
utmi-mode = <2>;
@@ -958,7 +970,7 @@
usb4: usb@48950000 {
compatible = "snps,dwc3";
reg = <0x48950000 0x17000>;
- /* interrupts = <0 TBD 4>; */
+ interrupts = <GIC_SPI 345 IRQ_TYPE_LEVEL_HIGH>;
tx-fifo-resize;
maximum-speed = "high-speed";
dr_mode = "otg";
@@ -968,7 +980,7 @@
elm: elm@48078000 {
compatible = "ti,am3352-elm";
reg = <0x48078000 0xfc0>; /* device IO registers */
- interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "elm";
status = "disabled";
};
@@ -977,13 +989,24 @@
compatible = "ti,am3352-gpmc";
ti,hwmods = "gpmc";
reg = <0x50000000 0x37c>; /* device IO registers */
- interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
gpmc,num-cs = <8>;
gpmc,num-waitpins = <2>;
#address-cells = <2>;
#size-cells = <1>;
status = "disabled";
};
+
+ crossbar_mpu: crossbar@4a020000 {
+ compatible = "ti,irq-crossbar";
+ reg = <0x4a002a48 0x130>;
+ ti,max-irqs = <160>;
+ ti,max-crossbar-sources = <MAX_SOURCES>;
+ ti,reg-size = <2>;
+ ti,irqs-reserved = <0 1 2 3 5 6 131 132>;
+ ti,irqs-skip = <10 133 139 140>;
+ ti,irqs-safe-map = <0>;
+ };
};
};
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index 3d15d16..85c2985 100644
--- a/drivers/irqchip/irq-crossbar.c
+++ b/drivers/irqchip/irq-crossbar.c
@@ -15,22 +15,31 @@
#include <linux/of_irq.h>
#include <linux/slab.h>
#include <linux/irqchip/arm-gic.h>
+#include <linux/irqchip/irq-crossbar.h>
#define IRQ_FREE -1
+#define IRQ_RESERVED -2
+#define IRQ_SKIP -3
#define GIC_IRQ_START 32
-/*
+/**
+ * struct crossbar_device - crossbar device description
* @int_max: maximum number of supported interrupts
+ * @safe_map: safe default value to initialize the crossbar
+ * @max_crossbar_sources: Maximum number of crossbar sources
* @irq_map: array of interrupts to crossbar number mapping
* @crossbar_base: crossbar base address
* @register_offsets: offsets for each irq number
+ * @write: register write function pointer
*/
struct crossbar_device {
uint int_max;
+ uint safe_map;
+ uint max_crossbar_sources;
uint *irq_map;
void __iomem *crossbar_base;
int *register_offsets;
- void (*write) (int, int);
+ void (*write)(int, int);
};
static struct crossbar_device *cb;
@@ -50,11 +59,22 @@
writeb(cb_no, cb->crossbar_base + cb->register_offsets[irq_no]);
}
+static inline int get_prev_map_irq(int cb_no)
+{
+ int i;
+
+ for (i = cb->int_max - 1; i >= 0; i--)
+ if (cb->irq_map[i] == cb_no)
+ return i;
+
+ return -ENODEV;
+}
+
static inline int allocate_free_irq(int cb_no)
{
int i;
- for (i = 0; i < cb->int_max; i++) {
+ for (i = cb->int_max - 1; i >= 0; i--) {
if (cb->irq_map[i] == IRQ_FREE) {
cb->irq_map[i] = cb_no;
return i;
@@ -64,19 +84,47 @@
return -ENODEV;
}
+static inline bool needs_crossbar_write(irq_hw_number_t hw)
+{
+ int cb_no;
+
+ if (hw > GIC_IRQ_START) {
+ cb_no = cb->irq_map[hw - GIC_IRQ_START];
+ if (cb_no != IRQ_RESERVED && cb_no != IRQ_SKIP)
+ return true;
+ }
+
+ return false;
+}
+
static int crossbar_domain_map(struct irq_domain *d, unsigned int irq,
irq_hw_number_t hw)
{
- cb->write(hw - GIC_IRQ_START, cb->irq_map[hw - GIC_IRQ_START]);
+ if (needs_crossbar_write(hw))
+ cb->write(hw - GIC_IRQ_START, cb->irq_map[hw - GIC_IRQ_START]);
+
return 0;
}
+/**
+ * crossbar_domain_unmap - unmap a crossbar<->irq connection
+ * @d: domain of irq to unmap
+ * @irq: virq number
+ *
+ * We do not maintain a use count of total number of map/unmap
+ * calls for a particular irq to find out if a irq can be really
+ * unmapped. This is because unmap is called during irq_dispose_mapping(irq),
+ * after which irq is anyways unusable. So an explicit map has to be called
+ * after that.
+ */
static void crossbar_domain_unmap(struct irq_domain *d, unsigned int irq)
{
irq_hw_number_t hw = irq_get_irq_data(irq)->hwirq;
- if (hw > GIC_IRQ_START)
+ if (needs_crossbar_write(hw)) {
cb->irq_map[hw - GIC_IRQ_START] = IRQ_FREE;
+ cb->write(hw - GIC_IRQ_START, cb->safe_map);
+ }
}
static int crossbar_domain_xlate(struct irq_domain *d,
@@ -85,18 +133,41 @@
unsigned long *out_hwirq,
unsigned int *out_type)
{
- unsigned long ret;
+ int ret;
+ int req_num = intspec[1];
+ int direct_map_num;
- ret = allocate_free_irq(intspec[1]);
+ if (req_num >= cb->max_crossbar_sources) {
+ direct_map_num = req_num - cb->max_crossbar_sources;
+ if (direct_map_num < cb->int_max) {
+ ret = cb->irq_map[direct_map_num];
+ if (ret == IRQ_RESERVED || ret == IRQ_SKIP) {
+ /* We use the interrupt num as h/w irq num */
+ ret = direct_map_num;
+ goto found;
+ }
+ }
- if (IS_ERR_VALUE(ret))
+ pr_err("%s: requested crossbar number %d > max %d\n",
+ __func__, req_num, cb->max_crossbar_sources);
+ return -EINVAL;
+ }
+
+ ret = get_prev_map_irq(req_num);
+ if (ret >= 0)
+ goto found;
+
+ ret = allocate_free_irq(req_num);
+
+ if (ret < 0)
return ret;
+found:
*out_hwirq = ret + GIC_IRQ_START;
return 0;
}
-const struct irq_domain_ops routable_irq_domain_ops = {
+static const struct irq_domain_ops routable_irq_domain_ops = {
.map = crossbar_domain_map,
.unmap = crossbar_domain_unmap,
.xlate = crossbar_domain_xlate
@@ -104,22 +175,36 @@
static int __init crossbar_of_init(struct device_node *node)
{
- int i, size, max, reserved = 0, entry;
+ int i, size, max = 0, reserved = 0, entry;
const __be32 *irqsr;
+ int ret = -ENOMEM;
cb = kzalloc(sizeof(*cb), GFP_KERNEL);
if (!cb)
- return -ENOMEM;
+ return ret;
cb->crossbar_base = of_iomap(node, 0);
if (!cb->crossbar_base)
- goto err1;
+ goto err_cb;
+
+ of_property_read_u32(node, "ti,max-crossbar-sources",
+ &cb->max_crossbar_sources);
+ if (!cb->max_crossbar_sources) {
+ pr_err("missing 'ti,max-crossbar-sources' property\n");
+ ret = -EINVAL;
+ goto err_base;
+ }
of_property_read_u32(node, "ti,max-irqs", &max);
- cb->irq_map = kzalloc(max * sizeof(int), GFP_KERNEL);
+ if (!max) {
+ pr_err("missing 'ti,max-irqs' property\n");
+ ret = -EINVAL;
+ goto err_base;
+ }
+ cb->irq_map = kcalloc(max, sizeof(int), GFP_KERNEL);
if (!cb->irq_map)
- goto err2;
+ goto err_base;
cb->int_max = max;
@@ -137,15 +222,35 @@
i, &entry);
if (entry > max) {
pr_err("Invalid reserved entry\n");
- goto err3;
+ ret = -EINVAL;
+ goto err_irq_map;
}
- cb->irq_map[entry] = 0;
+ cb->irq_map[entry] = IRQ_RESERVED;
}
}
- cb->register_offsets = kzalloc(max * sizeof(int), GFP_KERNEL);
+ /* Skip irqs hardwired to bypass the crossbar */
+ irqsr = of_get_property(node, "ti,irqs-skip", &size);
+ if (irqsr) {
+ size /= sizeof(__be32);
+
+ for (i = 0; i < size; i++) {
+ of_property_read_u32_index(node,
+ "ti,irqs-skip",
+ i, &entry);
+ if (entry > max) {
+ pr_err("Invalid skip entry\n");
+ ret = -EINVAL;
+ goto err_irq_map;
+ }
+ cb->irq_map[entry] = IRQ_SKIP;
+ }
+ }
+
+
+ cb->register_offsets = kcalloc(max, sizeof(int), GFP_KERNEL);
if (!cb->register_offsets)
- goto err3;
+ goto err_irq_map;
of_property_read_u32(node, "ti,reg-size", &size);
@@ -161,7 +266,8 @@
break;
default:
pr_err("Invalid reg-size property\n");
- goto err4;
+ ret = -EINVAL;
+ goto err_reg_offset;
break;
}
@@ -170,25 +276,37 @@
* reserved irqs. so find and store the offsets once.
*/
for (i = 0; i < max; i++) {
- if (!cb->irq_map[i])
+ if (cb->irq_map[i] == IRQ_RESERVED)
continue;
cb->register_offsets[i] = reserved;
reserved += size;
}
+ of_property_read_u32(node, "ti,irqs-safe-map", &cb->safe_map);
+ /* Initialize the crossbar with safe map to start with */
+ for (i = 0; i < max; i++) {
+ if (cb->irq_map[i] == IRQ_RESERVED ||
+ cb->irq_map[i] == IRQ_SKIP)
+ continue;
+
+ cb->write(i, cb->safe_map);
+ }
+
register_routable_domain_ops(&routable_irq_domain_ops);
return 0;
-err4:
+err_reg_offset:
kfree(cb->register_offsets);
-err3:
+err_irq_map:
kfree(cb->irq_map);
-err2:
+err_base:
iounmap(cb->crossbar_base);
-err1:
+err_cb:
kfree(cb);
- return -ENOMEM;
+
+ cb = NULL;
+ return ret;
}
static const struct of_device_id crossbar_match[] __initconst = {