diff options
| author | Simon Glass <sjg@chromium.org> | 2016-01-18 20:19:15 -0700 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2016-01-24 12:07:17 +0800 |
| commit | 9d731c82f0b17ea31666b23e5685d3d2a8388a68 (patch) | |
| tree | 632fdce6062043157524d4a08bbc0613c08c1267 | |
| parent | a6eb93b3212d37fe623ed3b4351eedb971c12e3c (diff) | |
dm: pci: Add a function to write a BAR
Add a driver-model version of the pci_write_bar32 function so that this is
supported in the new API.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
| -rw-r--r-- | drivers/pci/pci-uclass.c | 8 | ||||
| -rw-r--r-- | include/pci.h | 17 |
2 files changed, 23 insertions, 2 deletions
diff --git a/drivers/pci/pci-uclass.c b/drivers/pci/pci-uclass.c index 6dd4883318..61292d72bd 100644 --- a/drivers/pci/pci-uclass.c +++ b/drivers/pci/pci-uclass.c @@ -1053,6 +1053,14 @@ u32 dm_pci_read_bar32(struct udevice *dev, int barnum) return addr & PCI_BASE_ADDRESS_MEM_MASK; } +void dm_pci_write_bar32(struct udevice *dev, int barnum, u32 addr) +{ + int bar; + + bar = PCI_BASE_ADDRESS_0 + barnum * 4; + dm_pci_write_config32(dev, bar, addr); +} + static int _dm_pci_bus_to_phys(struct udevice *ctlr, pci_addr_t bus_addr, unsigned long flags, unsigned long skip_mask, phys_addr_t *pa) diff --git a/include/pci.h b/include/pci.h index cb2562f109..d0d152c00b 100644 --- a/include/pci.h +++ b/include/pci.h @@ -757,7 +757,9 @@ extern void pci_mpc85xx_init (struct pci_controller *hose); /** * pci_write_bar32() - Write the address of a BAR including control bits * - * This writes a raw address (with control bits) to a bar + * This writes a raw address (with control bits) to a bar. This can be used + * with devices which require hard-coded addresses, not part of the normal + * PCI enumeration process. * * @hose: PCI hose to use * @dev: PCI device to update @@ -765,7 +767,7 @@ extern void pci_mpc85xx_init (struct pci_controller *hose); * @addr: BAR address with control bits */ void pci_write_bar32(struct pci_controller *hose, pci_dev_t dev, int barnum, - u32 addr_and_ctrl); + u32 addr); /** * pci_read_bar32() - read the address of a bar @@ -1167,6 +1169,17 @@ int pci_get_regions(struct udevice *dev, struct pci_region **iop, struct pci_region **memp, struct pci_region **prefp); /** + * dm_pci_write_bar32() - Write the address of a BAR + * + * This writes a raw address to a bar + * + * @dev: PCI device to update + * @barnum: BAR number (0-5) + * @addr: BAR address + */ +void dm_pci_write_bar32(struct udevice *dev, int barnum, u32 addr); + +/** * dm_pci_read_bar32() - read a base address register from a device * * @dev: Device to check |