diff options
Diffstat (limited to 'target/linux/brcm2708/patches-3.18/0050-BCM2708-armctrl-Add-IRQ-Device-Tree-support.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-3.18/0050-BCM2708-armctrl-Add-IRQ-Device-Tree-support.patch | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/target/linux/brcm2708/patches-3.18/0050-BCM2708-armctrl-Add-IRQ-Device-Tree-support.patch b/target/linux/brcm2708/patches-3.18/0050-BCM2708-armctrl-Add-IRQ-Device-Tree-support.patch deleted file mode 100644 index f548d40712..0000000000 --- a/target/linux/brcm2708/patches-3.18/0050-BCM2708-armctrl-Add-IRQ-Device-Tree-support.patch +++ /dev/null @@ -1,168 +0,0 @@ -From 6be3809614db2d52724eb4b5193c27d2466142be Mon Sep 17 00:00:00 2001 -From: notro <notro@tronnes.org> -Date: Wed, 9 Jul 2014 14:47:48 +0200 -Subject: [PATCH 050/114] BCM2708: armctrl: Add IRQ Device Tree support - -Add Device Tree IRQ support for BCM2708. -Usage is the same as for irq-bcm2835. -See binding document: brcm,bcm2835-armctrl-ic.txt - -A bank 3 is added to handle GPIO interrupts. This is done because -armctrl also handles GPIO interrupts. - -Signed-off-by: Noralf Tronnes <notro@tronnes.org> - -BCM2708: armctrl: remove irq bank 3 - -irq bank 3 was needed by the pinctrl-bcm2708 and bcm2708_gpio -combination. It is no longer required. - -Signed-off-by: Noralf Tronnes <notro@tronnes.org> ---- - arch/arm/boot/dts/bcm2708.dtsi | 9 ++++ - arch/arm/mach-bcm2708/armctrl.c | 96 +++++++++++++++++++++++++++++++++++++++++ - 2 files changed, 105 insertions(+) - ---- a/arch/arm/boot/dts/bcm2708.dtsi -+++ b/arch/arm/boot/dts/bcm2708.dtsi -@@ -4,6 +4,8 @@ - compatible = "brcm,bcm2708"; - model = "BCM2708"; - -+ interrupt-parent = <&intc>; -+ - chosen { - /* - bootargs must be 1024 characters long because the -@@ -17,6 +19,13 @@ - #address-cells = <1>; - #size-cells = <1>; - ranges = <0x7e000000 0x20000000 0x02000000>; -+ -+ intc: interrupt-controller { -+ compatible = "brcm,bcm2708-armctrl-ic"; -+ reg = <0x7e00b200 0x200>; -+ interrupt-controller; -+ #interrupt-cells = <2>; -+ }; - }; - - clocks { ---- a/arch/arm/mach-bcm2708/armctrl.c -+++ b/arch/arm/mach-bcm2708/armctrl.c -@@ -23,6 +23,8 @@ - #include <linux/version.h> - #include <linux/syscore_ops.h> - #include <linux/interrupt.h> -+#include <linux/irqdomain.h> -+#include <linux/of.h> - - #include <asm/mach/irq.h> - #include <mach/hardware.h> -@@ -79,6 +81,99 @@ static void armctrl_unmask_irq(struct ir - } - } - -+#ifdef CONFIG_OF -+ -+#define NR_IRQS_BANK0 21 -+#define NR_BANKS 3 -+#define IRQS_PER_BANK 32 -+ -+/* from drivers/irqchip/irq-bcm2835.c */ -+static int armctrl_xlate(struct irq_domain *d, struct device_node *ctrlr, -+ const u32 *intspec, unsigned int intsize, -+ unsigned long *out_hwirq, unsigned int *out_type) -+{ -+ if (WARN_ON(intsize != 2)) -+ return -EINVAL; -+ -+ if (WARN_ON(intspec[0] >= NR_BANKS)) -+ return -EINVAL; -+ -+ if (WARN_ON(intspec[1] >= IRQS_PER_BANK)) -+ return -EINVAL; -+ -+ if (WARN_ON(intspec[0] == 0 && intspec[1] >= NR_IRQS_BANK0)) -+ return -EINVAL; -+ -+ if (intspec[0] == 0) -+ *out_hwirq = ARM_IRQ0_BASE + intspec[1]; -+ else if (intspec[0] == 1) -+ *out_hwirq = ARM_IRQ1_BASE + intspec[1]; -+ else -+ *out_hwirq = ARM_IRQ2_BASE + intspec[1]; -+ -+ /* reverse remap_irqs[] */ -+ switch (*out_hwirq) { -+ case INTERRUPT_VC_JPEG: -+ *out_hwirq = INTERRUPT_JPEG; -+ break; -+ case INTERRUPT_VC_USB: -+ *out_hwirq = INTERRUPT_USB; -+ break; -+ case INTERRUPT_VC_3D: -+ *out_hwirq = INTERRUPT_3D; -+ break; -+ case INTERRUPT_VC_DMA2: -+ *out_hwirq = INTERRUPT_DMA2; -+ break; -+ case INTERRUPT_VC_DMA3: -+ *out_hwirq = INTERRUPT_DMA3; -+ break; -+ case INTERRUPT_VC_I2C: -+ *out_hwirq = INTERRUPT_I2C; -+ break; -+ case INTERRUPT_VC_SPI: -+ *out_hwirq = INTERRUPT_SPI; -+ break; -+ case INTERRUPT_VC_I2SPCM: -+ *out_hwirq = INTERRUPT_I2SPCM; -+ break; -+ case INTERRUPT_VC_SDIO: -+ *out_hwirq = INTERRUPT_SDIO; -+ break; -+ case INTERRUPT_VC_UART: -+ *out_hwirq = INTERRUPT_UART; -+ break; -+ case INTERRUPT_VC_ARASANSDIO: -+ *out_hwirq = INTERRUPT_ARASANSDIO; -+ break; -+ } -+ -+ *out_type = IRQ_TYPE_NONE; -+ return 0; -+} -+ -+static struct irq_domain_ops armctrl_ops = { -+ .xlate = armctrl_xlate -+}; -+ -+void __init armctrl_dt_init(void) -+{ -+ struct device_node *np; -+ struct irq_domain *domain; -+ -+ np = of_find_compatible_node(NULL, NULL, "brcm,bcm2708-armctrl-ic"); -+ if (!np) -+ return; -+ -+ domain = irq_domain_add_legacy(np, BCM2708_ALLOC_IRQS, -+ IRQ_ARMCTRL_START, 0, -+ &armctrl_ops, NULL); -+ WARN_ON(!domain); -+} -+#else -+void __init armctrl_dt_init(void) { } -+#endif /* CONFIG_OF */ -+ - #if defined(CONFIG_PM) - - /* for kernels 3.xx use the new syscore_ops apis but for older kernels use the sys dev class */ -@@ -215,5 +310,6 @@ int __init armctrl_init(void __iomem * b - - armctrl_pm_register(base, irq_start, resume_sources); - init_FIQ(FIQ_START); -+ armctrl_dt_init(); - return 0; - } |