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| author | Simon Glass <sjg@chromium.org> | 2019-09-15 21:08:58 +0300 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2019-10-08 08:57:43 +0300 |
| commit | 33c215af4b9de32e5052bb716411dc34ce9b63ac (patch) | |
| tree | 36b6e9cc1fba5109206109b94a85fa64e6a0e6f7 /drivers/core/read.c | |
| parent | 6a73cf3d8fe32f3bddd4ba7dd47dcb75df5ca592 (diff) | |
| download | u-boot-33c215af4b9de32e5052bb716411dc34ce9b63ac.tar.xz | |
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 'drivers/core/read.c')
| -rw-r--r-- | drivers/core/read.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/core/read.c b/drivers/core/read.c index fb3dcd9a79..9602e52d1b 100644 --- a/drivers/core/read.c +++ b/drivers/core/read.c @@ -307,3 +307,14 @@ int dev_read_alias_highest_id(const char *stem) return fdtdec_get_alias_highest_id(gd->fdt_blob, stem); } + +fdt_addr_t dev_read_addr_pci(struct udevice *dev) +{ + ulong addr; + + addr = dev_read_addr(dev); + if (addr == FDT_ADDR_T_NONE && !of_live_active()) + addr = devfdt_get_addr_pci(dev); + + return addr; +} |