diff options
Diffstat (limited to 'target/linux/generic/patches-4.1/022-bcma-from-4.2.patch')
| -rw-r--r-- | target/linux/generic/patches-4.1/022-bcma-from-4.2.patch | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/target/linux/generic/patches-4.1/022-bcma-from-4.2.patch b/target/linux/generic/patches-4.1/022-bcma-from-4.2.patch new file mode 100644 index 0000000000..ba3df18bdd --- /dev/null +++ b/target/linux/generic/patches-4.1/022-bcma-from-4.2.patch @@ -0,0 +1,86 @@ +--- a/drivers/bcma/driver_gpio.c ++++ b/drivers/bcma/driver_gpio.c +@@ -226,6 +226,7 @@ int bcma_gpio_init(struct bcma_drv_cc *c + chip->of_node = cc->core->dev.of_node; + #endif + switch (bus->chipinfo.id) { ++ case BCMA_CHIP_ID_BCM4707: + case BCMA_CHIP_ID_BCM5357: + case BCMA_CHIP_ID_BCM53572: + chip->ngpio = 32; +@@ -235,16 +236,17 @@ int bcma_gpio_init(struct bcma_drv_cc *c + } + + /* +- * On MIPS we register GPIO devices (LEDs, buttons) using absolute GPIO +- * pin numbers. We don't have Device Tree there and we can't really use +- * relative (per chip) numbers. +- * So let's use predictable base for BCM47XX and "random" for all other. ++ * Register SoC GPIO devices with absolute GPIO pin base. ++ * On MIPS, we don't have Device Tree and we can't use relative (per chip) ++ * GPIO numbers. ++ * On some ARM devices, user space may want to access some system GPIO ++ * pins directly, which is easier to do with a predictable GPIO base. + */ +-#if IS_BUILTIN(CONFIG_BCM47XX) +- chip->base = bus->num * BCMA_GPIO_MAX_PINS; +-#else +- chip->base = -1; +-#endif ++ if (IS_BUILTIN(CONFIG_BCM47XX) || ++ cc->core->bus->hosttype == BCMA_HOSTTYPE_SOC) ++ chip->base = bus->num * BCMA_GPIO_MAX_PINS; ++ else ++ chip->base = -1; + + err = bcma_gpio_irq_domain_init(cc); + if (err) +--- a/drivers/bcma/Kconfig ++++ b/drivers/bcma/Kconfig +@@ -29,12 +29,6 @@ config BCMA_HOST_PCI + select BCMA_DRIVER_PCI + default y + +-config BCMA_DRIVER_PCI_HOSTMODE +- bool "Driver for PCI core working in hostmode" +- depends on BCMA && MIPS && BCMA_HOST_PCI +- help +- PCI core hostmode operation (external PCI bus). +- + config BCMA_HOST_SOC + bool "Support for BCMA in a SoC" + depends on BCMA +@@ -61,6 +55,12 @@ config BCMA_DRIVER_PCI + This driver is also prerequisite for a hostmode PCIe core + support. + ++config BCMA_DRIVER_PCI_HOSTMODE ++ bool "Driver for PCI core working in hostmode" ++ depends on BCMA && MIPS && BCMA_DRIVER_PCI ++ help ++ PCI core hostmode operation (external PCI bus). ++ + config BCMA_DRIVER_MIPS + bool "BCMA Broadcom MIPS core driver" + depends on BCMA && MIPS +--- a/include/linux/bcma/bcma_driver_pci.h ++++ b/include/linux/bcma/bcma_driver_pci.h +@@ -246,7 +246,18 @@ static inline void bcma_core_pci_power_s + } + #endif + ++#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE + extern int bcma_core_pci_pcibios_map_irq(const struct pci_dev *dev); + extern int bcma_core_pci_plat_dev_init(struct pci_dev *dev); ++#else ++static inline int bcma_core_pci_pcibios_map_irq(const struct pci_dev *dev) ++{ ++ return -ENOTSUPP; ++} ++static inline int bcma_core_pci_plat_dev_init(struct pci_dev *dev) ++{ ++ return -ENOTSUPP; ++} ++#endif + + #endif /* LINUX_BCMA_DRIVER_PCI_H_ */ |