kernel: backport rest of bcma patches

This backports
bcma: allow disabling (not building) PCI driver
Revert "bcma: Kconfig: Let it depend on PCI"

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

SVN-Revision: 44970

3 files changed, 67 insertions, 26 deletions

diff --git a/target/linux/brcm47xx/config-3.18 b/target/linux/brcm47xx/config-3.18
index e20df3027a..82198ea989 100644
--- a/target/linux/brcm47xx/config-3.18
+++ b/target/linux/brcm47xx/config-3.18
@@ -26,6 +26,7 @@ CONFIG_BCMA_DEBUG=y
 CONFIG_BCMA_DRIVER_GMAC_CMN=y
 CONFIG_BCMA_DRIVER_GPIO=y
 CONFIG_BCMA_DRIVER_MIPS=y
+CONFIG_BCMA_DRIVER_PCI=y
 CONFIG_BCMA_DRIVER_PCI_HOSTMODE=y
 CONFIG_BCMA_HOST_PCI=y
 CONFIG_BCMA_HOST_PCI_POSSIBLE=y
diff --git a/target/linux/generic/patches-3.18/027-bcma-from-4.1.patch b/target/linux/generic/patches-3.18/027-bcma-from-4.1.patch
index 3a9ea3098f..1d751a0c6d 100644
--- a/target/linux/generic/patches-3.18/027-bcma-from-4.1.patch
+++ b/target/linux/generic/patches-3.18/027-bcma-from-4.1.patch
@@ -27,22 +27,43 @@
  u32 bcma_pmu_get_alp_clock(struct bcma_drv_cc *cc);
  u32 bcma_pmu_get_cpu_clock(struct bcma_drv_cc *cc);
  
-@@ -101,6 +107,14 @@ static inline void __exit bcma_host_soc_
+@@ -100,7 +106,35 @@ static inline void __exit bcma_host_soc_
+ #endif /* CONFIG_BCMA_HOST_SOC && CONFIG_OF */
  
  /* driver_pci.c */
++#ifdef CONFIG_BCMA_DRIVER_PCI
  u32 bcma_pcie_read(struct bcma_drv_pci *pc, u32 address);
 +void bcma_core_pci_early_init(struct bcma_drv_pci *pc);
 +void bcma_core_pci_init(struct bcma_drv_pci *pc);
 +void bcma_core_pci_up(struct bcma_drv_pci *pc);
 +void bcma_core_pci_down(struct bcma_drv_pci *pc);
++#else
++static inline void bcma_core_pci_early_init(struct bcma_drv_pci *pc)
++{
++	WARN_ON(pc->core->bus->hosttype == BCMA_HOSTTYPE_PCI);
++}
++static inline void bcma_core_pci_init(struct bcma_drv_pci *pc)
++{
++	/* Initialization is required for PCI hosted bus */
++	WARN_ON(pc->core->bus->hosttype == BCMA_HOSTTYPE_PCI);
++}
++#endif
 +
 +/* driver_pcie2.c */
++#ifdef CONFIG_BCMA_DRIVER_PCI
 +void bcma_core_pcie2_init(struct bcma_drv_pcie2 *pcie2);
 +void bcma_core_pcie2_up(struct bcma_drv_pcie2 *pcie2);
++#else
++static inline void bcma_core_pcie2_init(struct bcma_drv_pcie2 *pcie2)
++{
++	/* Initialization is required for PCI hosted bus */
++	WARN_ON(pcie2->core->bus->hosttype == BCMA_HOSTTYPE_PCI);
++}
++#endif
  
  extern int bcma_chipco_watchdog_register(struct bcma_drv_cc *cc);
  
-@@ -117,6 +131,39 @@ static inline void bcma_core_pci_hostmod
+@@ -117,6 +151,39 @@ static inline void bcma_core_pci_hostmod
  }
  #endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */
  
@@ -509,7 +530,7 @@
  extern int bcma_core_enable(struct bcma_device *core, u32 flags);
 --- a/include/linux/bcma/bcma_driver_pci.h
 +++ b/include/linux/bcma/bcma_driver_pci.h
-@@ -238,12 +238,6 @@ struct bcma_drv_pci {
+@@ -238,13 +238,13 @@ struct bcma_drv_pci {
  #define pcicore_write16(pc, offset, val)	bcma_write16((pc)->core, offset, val)
  #define pcicore_write32(pc, offset, val)	bcma_write32((pc)->core, offset, val)
  
@@ -519,9 +540,16 @@
 -				 struct bcma_device *core, bool enable);
 -extern void bcma_core_pci_up(struct bcma_bus *bus);
 -extern void bcma_core_pci_down(struct bcma_bus *bus);
++#ifdef CONFIG_BCMA_DRIVER_PCI
  extern void bcma_core_pci_power_save(struct bcma_bus *bus, bool up);
++#else
++static inline void bcma_core_pci_power_save(struct bcma_bus *bus, bool up)
++{
++}
++#endif
  
  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);
 --- a/include/linux/bcma/bcma_driver_pcie2.h
 +++ b/include/linux/bcma/bcma_driver_pcie2.h
 @@ -143,6 +143,8 @@
@@ -542,14 +570,6 @@
  #endif /* LINUX_BCMA_DRIVER_PCIE2_H_ */
 --- a/drivers/bcma/Kconfig
 +++ b/drivers/bcma/Kconfig
-@@ -1,6 +1,6 @@
- config BCMA_POSSIBLE
- 	bool
--	depends on HAS_IOMEM && HAS_DMA
-+	depends on HAS_IOMEM && HAS_DMA && PCI
- 	default y
- 
- menu "Broadcom specific AMBA"
 @@ -26,6 +26,7 @@ config BCMA_HOST_PCI_POSSIBLE
  config BCMA_HOST_PCI
  	bool "Support for BCMA on PCI-host bus"
@@ -562,9 +582,9 @@
  
  	  If unsure, say N
  
-+# TODO: make it depend on PCI when ready
 +config BCMA_DRIVER_PCI
-+	bool
++	bool "BCMA Broadcom PCI core driver"
++	depends on BCMA && PCI
 +	default y
 +	help
 +	  BCMA bus may have many versions of PCIe core. This driver
diff --git a/target/linux/generic/patches-4.0/021-bcma-from-4.1.patch b/target/linux/generic/patches-4.0/021-bcma-from-4.1.patch
index 17764d90b9..8f3e167a35 100644
--- a/target/linux/generic/patches-4.0/021-bcma-from-4.1.patch
+++ b/target/linux/generic/patches-4.0/021-bcma-from-4.1.patch
@@ -27,22 +27,43 @@
  u32 bcma_pmu_get_alp_clock(struct bcma_drv_cc *cc);
  u32 bcma_pmu_get_cpu_clock(struct bcma_drv_cc *cc);
  
-@@ -101,6 +107,14 @@ static inline void __exit bcma_host_soc_
+@@ -100,7 +106,35 @@ static inline void __exit bcma_host_soc_
+ #endif /* CONFIG_BCMA_HOST_SOC && CONFIG_OF */
  
  /* driver_pci.c */
++#ifdef CONFIG_BCMA_DRIVER_PCI
  u32 bcma_pcie_read(struct bcma_drv_pci *pc, u32 address);
 +void bcma_core_pci_early_init(struct bcma_drv_pci *pc);
 +void bcma_core_pci_init(struct bcma_drv_pci *pc);
 +void bcma_core_pci_up(struct bcma_drv_pci *pc);
 +void bcma_core_pci_down(struct bcma_drv_pci *pc);
++#else
++static inline void bcma_core_pci_early_init(struct bcma_drv_pci *pc)
++{
++	WARN_ON(pc->core->bus->hosttype == BCMA_HOSTTYPE_PCI);
++}
++static inline void bcma_core_pci_init(struct bcma_drv_pci *pc)
++{
++	/* Initialization is required for PCI hosted bus */
++	WARN_ON(pc->core->bus->hosttype == BCMA_HOSTTYPE_PCI);
++}
++#endif
 +
 +/* driver_pcie2.c */
++#ifdef CONFIG_BCMA_DRIVER_PCI
 +void bcma_core_pcie2_init(struct bcma_drv_pcie2 *pcie2);
 +void bcma_core_pcie2_up(struct bcma_drv_pcie2 *pcie2);
++#else
++static inline void bcma_core_pcie2_init(struct bcma_drv_pcie2 *pcie2)
++{
++	/* Initialization is required for PCI hosted bus */
++	WARN_ON(pcie2->core->bus->hosttype == BCMA_HOSTTYPE_PCI);
++}
++#endif
  
  extern int bcma_chipco_watchdog_register(struct bcma_drv_cc *cc);
  
-@@ -117,6 +131,39 @@ static inline void bcma_core_pci_hostmod
+@@ -117,6 +151,39 @@ static inline void bcma_core_pci_hostmod
  }
  #endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */
  
@@ -509,7 +530,7 @@
  extern int bcma_core_enable(struct bcma_device *core, u32 flags);
 --- a/include/linux/bcma/bcma_driver_pci.h
 +++ b/include/linux/bcma/bcma_driver_pci.h
-@@ -238,12 +238,6 @@ struct bcma_drv_pci {
+@@ -238,13 +238,13 @@ struct bcma_drv_pci {
  #define pcicore_write16(pc, offset, val)	bcma_write16((pc)->core, offset, val)
  #define pcicore_write32(pc, offset, val)	bcma_write32((pc)->core, offset, val)
  
@@ -519,9 +540,16 @@
 -				 struct bcma_device *core, bool enable);
 -extern void bcma_core_pci_up(struct bcma_bus *bus);
 -extern void bcma_core_pci_down(struct bcma_bus *bus);
++#ifdef CONFIG_BCMA_DRIVER_PCI
  extern void bcma_core_pci_power_save(struct bcma_bus *bus, bool up);
++#else
++static inline void bcma_core_pci_power_save(struct bcma_bus *bus, bool up)
++{
++}
++#endif
  
  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);
 --- a/include/linux/bcma/bcma_driver_pcie2.h
 +++ b/include/linux/bcma/bcma_driver_pcie2.h
 @@ -143,6 +143,8 @@
@@ -542,14 +570,6 @@
  #endif /* LINUX_BCMA_DRIVER_PCIE2_H_ */
 --- a/drivers/bcma/Kconfig
 +++ b/drivers/bcma/Kconfig
-@@ -1,6 +1,6 @@
- config BCMA_POSSIBLE
- 	bool
--	depends on HAS_IOMEM && HAS_DMA
-+	depends on HAS_IOMEM && HAS_DMA && PCI
- 	default y
- 
- menu "Broadcom specific AMBA"
 @@ -26,6 +26,7 @@ config BCMA_HOST_PCI_POSSIBLE
  config BCMA_HOST_PCI
  	bool "Support for BCMA on PCI-host bus"
@@ -562,9 +582,9 @@
  
  	  If unsure, say N
  
-+# TODO: make it depend on PCI when ready
 +config BCMA_DRIVER_PCI
-+	bool
++	bool "BCMA Broadcom PCI core driver"
++	depends on BCMA && PCI
 +	default y
 +	help
 +	  BCMA bus may have many versions of PCIe core. This driver