diff options
| author | Simon Glass <sjg@chromium.org> | 2019-09-15 12:08:58 -0600 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2019-10-08 13:57:43 +0800 |
| commit | 33c215af4b9de32e5052bb716411dc34ce9b63ac (patch) | |
| tree | 36b6e9cc1fba5109206109b94a85fa64e6a0e6f7 /include/dm/fdtaddr.h | |
| parent | 6a73cf3d8fe32f3bddd4ba7dd47dcb75df5ca592 (diff) | |
dm: pci: Add a function to read a PCI BAR
At present PCI address transaction is not supported so drivers must
manually read the correct BAR after reading the device tree info. The
ns16550 has a suitable implementation, so move this code into the core
DM support.
Note that there is no live-tree equivalent at present.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: correct the unclear comments in test.dts]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'include/dm/fdtaddr.h')
| -rw-r--r-- | include/dm/fdtaddr.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/dm/fdtaddr.h b/include/dm/fdtaddr.h index 57b326cb336..959d3bc2d69 100644 --- a/include/dm/fdtaddr.h +++ b/include/dm/fdtaddr.h @@ -138,4 +138,12 @@ fdt_addr_t devfdt_get_addr_name(struct udevice *dev, const char *name); fdt_addr_t devfdt_get_addr_size_name(struct udevice *dev, const char *name, fdt_size_t *size); +/** + * devfdt_get_addr_pci() - Read an address and handle PCI address translation + * + * @dev: Device to read from + * @return address or FDT_ADDR_T_NONE if not found + */ +fdt_addr_t devfdt_get_addr_pci(struct udevice *dev); + #endif |