diff options
Diffstat (limited to 'target/linux/generic/patches-3.18/025-bcma_backport.patch')
| -rw-r--r-- | target/linux/generic/patches-3.18/025-bcma_backport.patch | 286 |
1 files changed, 286 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.18/025-bcma_backport.patch b/target/linux/generic/patches-3.18/025-bcma_backport.patch new file mode 100644 index 0000000..ca24e86 --- /dev/null +++ b/target/linux/generic/patches-3.18/025-bcma_backport.patch @@ -0,0 +1,286 @@ +--- a/drivers/bcma/bcma_private.h ++++ b/drivers/bcma/bcma_private.h +@@ -24,6 +24,7 @@ struct bcma_bus; + /* main.c */ + bool bcma_wait_value(struct bcma_device *core, u16 reg, u32 mask, u32 value, + int timeout); ++void bcma_prepare_core(struct bcma_bus *bus, struct bcma_device *core); + int bcma_bus_register(struct bcma_bus *bus); + void bcma_bus_unregister(struct bcma_bus *bus); + int __init bcma_bus_early_register(struct bcma_bus *bus, +--- a/drivers/bcma/driver_chipcommon.c ++++ b/drivers/bcma/driver_chipcommon.c +@@ -339,7 +339,7 @@ void bcma_chipco_serial_init(struct bcma + return; + } + +- irq = bcma_core_irq(cc->core); ++ irq = bcma_core_irq(cc->core, 0); + + /* Determine the registers of the UARTs */ + cc->nr_serial_ports = (cc->capabilities & BCMA_CC_CAP_NRUART); +--- a/drivers/bcma/driver_gpio.c ++++ b/drivers/bcma/driver_gpio.c +@@ -152,7 +152,7 @@ static int bcma_gpio_irq_domain_init(str + handle_simple_irq); + } + +- hwirq = bcma_core_irq(cc->core); ++ hwirq = bcma_core_irq(cc->core, 0); + err = request_irq(hwirq, bcma_gpio_irq_handler, IRQF_SHARED, "gpio", + cc); + if (err) +@@ -183,7 +183,7 @@ static void bcma_gpio_irq_domain_exit(st + return; + + bcma_cc_mask32(cc, BCMA_CC_IRQMASK, ~BCMA_CC_IRQ_GPIO); +- free_irq(bcma_core_irq(cc->core), cc); ++ free_irq(bcma_core_irq(cc->core, 0), cc); + for (gpio = 0; gpio < chip->ngpio; gpio++) { + int irq = irq_find_mapping(cc->irq_domain, gpio); + +--- a/drivers/bcma/driver_mips.c ++++ b/drivers/bcma/driver_mips.c +@@ -115,7 +115,7 @@ static u32 bcma_core_mips_irqflag(struct + * If disabled, 5 is returned. + * If not supported, 6 is returned. + */ +-static unsigned int bcma_core_mips_irq(struct bcma_device *dev) ++unsigned int bcma_core_mips_irq(struct bcma_device *dev) + { + struct bcma_device *mdev = dev->bus->drv_mips.core; + u32 irqflag; +@@ -133,13 +133,6 @@ static unsigned int bcma_core_mips_irq(s + return 5; + } + +-unsigned int bcma_core_irq(struct bcma_device *dev) +-{ +- unsigned int mips_irq = bcma_core_mips_irq(dev); +- return mips_irq <= 4 ? mips_irq + 2 : 0; +-} +-EXPORT_SYMBOL(bcma_core_irq); +- + static void bcma_core_mips_set_irq(struct bcma_device *dev, unsigned int irq) + { + unsigned int oldirq = bcma_core_mips_irq(dev); +@@ -423,7 +416,7 @@ void bcma_core_mips_init(struct bcma_drv + break; + default: + list_for_each_entry(core, &bus->cores, list) { +- core->irq = bcma_core_irq(core); ++ core->irq = bcma_core_irq(core, 0); + } + bcma_err(bus, + "Unknown device (0x%x) found, can not configure IRQs\n", +--- a/drivers/bcma/driver_pci_host.c ++++ b/drivers/bcma/driver_pci_host.c +@@ -593,7 +593,7 @@ int bcma_core_pci_plat_dev_init(struct p + pr_info("PCI: Fixing up device %s\n", pci_name(dev)); + + /* Fix up interrupt lines */ +- dev->irq = bcma_core_irq(pc_host->pdev->core); ++ dev->irq = bcma_core_irq(pc_host->pdev->core, 0); + pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq); + + readrq = pcie_get_readrq(dev); +@@ -617,6 +617,6 @@ int bcma_core_pci_pcibios_map_irq(const + + pc_host = container_of(dev->bus->ops, struct bcma_drv_pci_host, + pci_ops); +- return bcma_core_irq(pc_host->pdev->core); ++ return bcma_core_irq(pc_host->pdev->core, 0); + } + EXPORT_SYMBOL(bcma_core_pci_pcibios_map_irq); +--- 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) + { +@@ -161,18 +202,47 @@ 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 */ + +-static void bcma_register_core(struct bcma_bus *bus, struct bcma_device *core) ++unsigned int bcma_core_irq(struct bcma_device *core, int num) + { +- int err; ++ struct bcma_bus *bus = core->bus; ++ unsigned int mips_irq; ++ ++ switch (bus->hosttype) { ++ case BCMA_HOSTTYPE_PCI: ++ return bus->host_pci->irq; ++ case BCMA_HOSTTYPE_SOC: ++ if (bus->drv_mips.core && num == 0) { ++ mips_irq = bcma_core_mips_irq(core); ++ return mips_irq <= 4 ? mips_irq + 2 : 0; ++ } ++ if (bus->host_pdev) ++ return bcma_of_get_irq(bus->host_pdev, core, num); ++ return 0; ++ case BCMA_HOSTTYPE_SDIO: ++ return 0; ++ } + ++ return 0; ++} ++EXPORT_SYMBOL(bcma_core_irq); ++ ++void bcma_prepare_core(struct bcma_bus *bus, struct bcma_device *core) ++{ + core->dev.release = bcma_release_core_dev; + core->dev.bus = &bcma_bus_type; + dev_set_name(&core->dev, "bcma%d:%d", bus->num, core->core_index); +@@ -196,6 +266,11 @@ static void bcma_register_core(struct bc + case BCMA_HOSTTYPE_SDIO: + break; + } ++} ++ ++static void bcma_register_core(struct bcma_bus *bus, struct bcma_device *core) ++{ ++ int err; + + err = device_register(&core->dev); + if (err) { +--- a/drivers/bcma/scan.c ++++ b/drivers/bcma/scan.c +@@ -505,6 +505,7 @@ int bcma_bus_scan(struct bcma_bus *bus) + bus->nr_cores++; + other_core = bcma_find_core_reverse(bus, core->id.id); + core->core_unit = (other_core == NULL) ? 0 : other_core->core_unit + 1; ++ bcma_prepare_core(bus, core); + + bcma_info(bus, "Core %d found: %s (manuf 0x%03X, id 0x%03X, rev 0x%02X, class 0x%X)\n", + core->core_index, bcma_device_name(&core->id), +--- a/include/linux/bcma/bcma.h ++++ b/include/linux/bcma/bcma.h +@@ -447,4 +447,6 @@ extern u32 bcma_chipco_pll_read(struct b + #define BCMA_DMA_TRANSLATION_DMA64_CMT 0x80000000 /* Client Mode Translation for 64-bit DMA */ + extern u32 bcma_core_dma_translation(struct bcma_device *core); + ++extern unsigned int bcma_core_irq(struct bcma_device *core, int num); ++ + #endif /* LINUX_BCMA_H_ */ +--- a/include/linux/bcma/bcma_driver_mips.h ++++ b/include/linux/bcma/bcma_driver_mips.h +@@ -43,12 +43,12 @@ struct bcma_drv_mips { + extern void bcma_core_mips_init(struct bcma_drv_mips *mcore); + extern void bcma_core_mips_early_init(struct bcma_drv_mips *mcore); + +-extern unsigned int bcma_core_irq(struct bcma_device *core); ++extern unsigned int bcma_core_mips_irq(struct bcma_device *dev); + #else + static inline void bcma_core_mips_init(struct bcma_drv_mips *mcore) { } + static inline void bcma_core_mips_early_init(struct bcma_drv_mips *mcore) { } + +-static inline unsigned int bcma_core_irq(struct bcma_device *core) ++static inline unsigned int bcma_core_mips_irq(struct bcma_device *dev) + { + return 0; + } +--- 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>; |