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 /arch | |
| 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 'arch')
| -rw-r--r-- | arch/sandbox/dts/test.dts | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts index b6d0960097..25cac056bb 100644 --- a/arch/sandbox/dts/test.dts +++ b/arch/sandbox/dts/test.dts @@ -456,12 +456,15 @@ }; pci@1,0 { compatible = "pci-generic"; - reg = <0x0800 0 0 0 0>; + /* reg 0 is at 0x14, using FDT_PCI_SPACE_MEM32 */ + reg = <0x02000814 0 0 0 0 + 0x01000810 0 0 0 0>; sandbox,emul = <&swap_case_emul0_1>; }; pci@1f,0 { compatible = "pci-generic"; - reg = <0xf800 0 0 0 0>; + /* reg 0 is at 0x10, using FDT_PCI_SPACE_IO */ + reg = <0x0100f810 0 0 0 0>; sandbox,emul = <&swap_case_emul0_1f>; }; }; |