diff options
| author | Alexey Brodkin <Alexey.Brodkin@synopsys.com> | 2017-03-23 20:34:45 +0300 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2017-03-24 13:36:08 -0700 |
| commit | ae9955aeb8e47c4f60a02add47acf9850ca0ead7 (patch) | |
| tree | 313dea677b80c4ce2a44ae6b0b617a632bfd118e /arch/arc/boot | |
| parent | 814a585038e36cd158bee4ef964e579136cf24c6 (diff) | |
| download | linux-rt-ae9955aeb8e47c4f60a02add47acf9850ca0ead7.tar.gz | |
ARC: vdk: Fix support of UIO
MotherBoard section has its "ranges" set to 0xE000_0000-0xF000_0000.
But UIO node maps 4 different areas in different memory locations
and all outside MB's ranges.
That obviously breaks UIO mappings in runtime.
Cc: Ruud Derwig <rderwig@synopsys.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/boot')
| -rw-r--r-- | arch/arc/boot/dts/vdk_axs10x_mb.dtsi | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/arch/arc/boot/dts/vdk_axs10x_mb.dtsi b/arch/arc/boot/dts/vdk_axs10x_mb.dtsi index f0df59b23e21..459fc656b759 100644 --- a/arch/arc/boot/dts/vdk_axs10x_mb.dtsi +++ b/arch/arc/boot/dts/vdk_axs10x_mb.dtsi @@ -112,13 +112,19 @@ interrupts = <7>; bus-width = <4>; }; + }; - /* Embedded Vision subsystem UIO mappings; only relevant for EV VDK */ - uio_ev: uio@0xD0000000 { - compatible = "generic-uio"; - reg = <0xD0000000 0x2000 0xD1000000 0x2000 0x90000000 0x10000000 0xC0000000 0x10000000>; - reg-names = "ev_gsa", "ev_ctrl", "ev_shared_mem", "ev_code_mem"; - interrupts = <23>; - }; + /* + * Embedded Vision subsystem UIO mappings; only relevant for EV VDK + * + * This node is intentionally put outside of MB above becase + * it maps areas outside of MB's 0xEz-0xFz. + */ + uio_ev: uio@0xD0000000 { + compatible = "generic-uio"; + reg = <0xD0000000 0x2000 0xD1000000 0x2000 0x90000000 0x10000000 0xC0000000 0x10000000>; + reg-names = "ev_gsa", "ev_ctrl", "ev_shared_mem", "ev_code_mem"; + interrupt-parent = <&mb_intc>; + interrupts = <23>; }; }; |