diff options
Diffstat (limited to 'target/linux/bcm53xx/patches-3.18/061-bcma-get-IRQ-numbers-from-dt.patch')
| -rw-r--r-- | target/linux/bcm53xx/patches-3.18/061-bcma-get-IRQ-numbers-from-dt.patch | 141 |
1 files changed, 0 insertions, 141 deletions
diff --git a/target/linux/bcm53xx/patches-3.18/061-bcma-get-IRQ-numbers-from-dt.patch b/target/linux/bcm53xx/patches-3.18/061-bcma-get-IRQ-numbers-from-dt.patch deleted file mode 100644 index 886f6fb9c9..0000000000 --- a/target/linux/bcm53xx/patches-3.18/061-bcma-get-IRQ-numbers-from-dt.patch +++ /dev/null @@ -1,141 +0,0 @@ -From 4eb6a1fd46965ed6c3fb9327276eb53a3021eaaa Mon Sep 17 00:00:00 2001 -From: Hauke Mehrtens <hauke@hauke-m.de> -Date: Thu, 9 Jan 2014 19:40:14 +0100 -Subject: [PATCH 3/3] bcma: get IRQ numbers from dt - -It is not possible to auto detect the irq numbers used by the cores on -an arm SoC. If bcma was registered with device tree it will search for -some device tree nodes with the irq number and add it to the core -configuration. - -Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> ---- - Documentation/devicetree/bindings/bus/bcma.txt | 21 +++++++++++ - drivers/bcma/main.c | 52 +++++++++++++++++++++++++- - 2 files changed, 72 insertions(+), 1 deletion(-) - ---- a/Documentation/devicetree/bindings/bus/bcma.txt -+++ b/Documentation/devicetree/bindings/bus/bcma.txt -@@ -8,6 +8,11 @@ Required properties: - - The cores on the AXI bus are automatically detected by bcma with the - memory ranges they are using and they get registered afterwards. -+Automatic detection of the IRQ number is not working on -+BCM47xx/BCM53xx ARM SoCs. To assign IRQ numbers to the cores, provide -+them manually through device tree. Use an interrupt-map to specify the -+IRQ used by the devices on the bus. The first address is just an index, -+because we do not have any special register. - - The top-level axi bus may contain children representing attached cores - (devices). This is needed since some hardware details can't be auto -@@ -22,6 +27,22 @@ Example: - ranges = <0x00000000 0x18000000 0x00100000>; - #address-cells = <1>; - #size-cells = <1>; -+ #interrupt-cells = <1>; -+ interrupt-map-mask = <0x000fffff 0xffff>; -+ interrupt-map = -+ /* Ethernet Controller 0 */ -+ <0x00024000 0 &gic GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>, -+ -+ /* Ethernet Controller 1 */ -+ <0x00025000 0 &gic GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>; -+ -+ /* PCIe Controller 0 */ -+ <0x00012000 0 &gic GIC_SPI 126 IRQ_TYPE_LEVEL_HIGH>, -+ <0x00012000 1 &gic GIC_SPI 127 IRQ_TYPE_LEVEL_HIGH>, -+ <0x00012000 2 &gic GIC_SPI 128 IRQ_TYPE_LEVEL_HIGH>, -+ <0x00012000 3 &gic GIC_SPI 129 IRQ_TYPE_LEVEL_HIGH>, -+ <0x00012000 4 &gic GIC_SPI 130 IRQ_TYPE_LEVEL_HIGH>, -+ <0x00012000 5 &gic GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>; - - chipcommon { - reg = <0x00000000 0x1000>; ---- a/drivers/bcma/main.c -+++ b/drivers/bcma/main.c -@@ -11,6 +11,7 @@ - #include <linux/bcma/bcma.h> - #include <linux/slab.h> - #include <linux/of_address.h> -+#include <linux/of_irq.h> - - MODULE_DESCRIPTION("Broadcom's specific AMBA driver"); - MODULE_LICENSE("GPL"); -@@ -153,6 +154,46 @@ static struct device_node *bcma_of_find_ - return NULL; - } - -+static int bcma_of_irq_parse(struct platform_device *parent, -+ struct bcma_device *core, -+ struct of_phandle_args *out_irq, int num) -+{ -+ __be32 laddr[1]; -+ int rc; -+ -+ if (core->dev.of_node) { -+ rc = of_irq_parse_one(core->dev.of_node, num, out_irq); -+ if (!rc) -+ return rc; -+ } -+ -+ out_irq->np = parent->dev.of_node; -+ out_irq->args_count = 1; -+ out_irq->args[0] = num; -+ -+ laddr[0] = cpu_to_be32(core->addr); -+ return of_irq_parse_raw(laddr, out_irq); -+} -+ -+static unsigned int bcma_of_get_irq(struct platform_device *parent, -+ struct bcma_device *core, int num) -+{ -+ struct of_phandle_args out_irq; -+ int ret; -+ -+ if (!parent || !parent->dev.of_node) -+ return 0; -+ -+ ret = bcma_of_irq_parse(parent, core, &out_irq, num); -+ if (ret) { -+ bcma_debug(core->bus, "bcma_of_get_irq() failed with rc=%d\n", -+ ret); -+ return 0; -+ } -+ -+ return irq_create_of_mapping(&out_irq); -+} -+ - static void bcma_of_fill_device(struct platform_device *parent, - struct bcma_device *core) - { -@@ -161,12 +202,19 @@ static void bcma_of_fill_device(struct p - node = bcma_of_find_child_device(parent, core); - if (node) - core->dev.of_node = node; -+ -+ core->irq = bcma_of_get_irq(parent, core, 0); - } - #else - static void bcma_of_fill_device(struct platform_device *parent, - struct bcma_device *core) - { - } -+static inline unsigned int bcma_of_get_irq(struct platform_device *parent, -+ struct bcma_device *core, int num) -+{ -+ return 0; -+} - #endif /* CONFIG_OF */ - - unsigned int bcma_core_irq(struct bcma_device *core, int num) -@@ -182,7 +230,9 @@ unsigned int bcma_core_irq(struct bcma_d - mips_irq = bcma_core_mips_irq(core); - return mips_irq <= 4 ? mips_irq + 2 : 0; - } -- break; -+ if (bus->host_pdev) -+ return bcma_of_get_irq(bus->host_pdev, core, num); -+ return 0; - case BCMA_HOSTTYPE_SDIO: - return 0; - } |