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| Path | csiph.com!aioe.org!news.servidellagleba.it!bofh.it!news.nic.it!robomod |
|---|---|
| From | Alexey Brodkin <Alexey.Brodkin@synopsys.com> |
| Newsgroups | linux.kernel |
| Subject | [PATCH] arc: vdk: Fix support of UIO |
| Date | Thu, 23 Mar 2017 18:40:01 +0100 |
| Message-ID | <toeSl-5uK-9@gated-at.bofh.it> (permalink) |
| X-Original-To | linux-snps-arc@lists.infradead.org |
| X-Mailer | git-send-email 2.7.4 |
| Sender | robomod@news.nic.it |
| List-ID | <linux-kernel.vger.kernel.org> |
| X-Mailing-List | linux-kernel@vger.kernel.org |
| Approved | robomod@news.nic.it |
| Lines | 47 |
| Organization | linux.* mail to news gateway |
| X-Original-Cc | linux-kernel@vger.kernel.org, Alexey Brodkin <Alexey.Brodkin@synopsys.com>, Vineet Gupta <Vineet.Gupta1@synopsys.com>, Ruud Derwig <Ruud.Derwig@synopsys.com>, stable@vger.kernel.org |
| X-Original-Date | Thu, 23 Mar 2017 20:34:45 +0300 |
| X-Original-Message-ID | <1490290485-16332-1-git-send-email-abrodkin@synopsys.com> |
| X-Original-Sender | linux-kernel-owner@vger.kernel.org |
| Xref | csiph.com linux.kernel:1607740 |
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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.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Ruud Derwig <rderwig@synopsys.com>
Cc: stable@vger.kernel.org
---
arch/arc/boot/dts/vdk_axs10x_mb.dtsi | 20 +++++++++++++-------
1 file 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>;
};
};
--
2.7.4
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[PATCH] arc: vdk: Fix support of UIO Alexey Brodkin <Alexey.Brodkin@synopsys.com> - 2017-03-23 18:40 +0100 Re: [PATCH] arc: vdk: Fix support of UIO Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2017-03-23 18:40 +0100 Re: [PATCH] arc: vdk: Fix support of UIO Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2017-03-24 21:40 +0100
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