| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <20250623-k1-dma-buses-rfc-wip-v1-2-c0144082061f@iscas.ac.cn>
Date: Mon, 23 Jun 2025 18:04:17 +0800
From: Vivian Wang <wangruikang@...as.ac.cn>
To: Yixun Lan <dlan@...too.org>, Guodong Xu <guodong@...cstar.com>,
Ze Huang <huangze@...t.edu.cn>, Alex Elder <elder@...cstar.com>,
spacemit@...ts.linux.dev, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>,
Alexandre Ghiti <alex@...ti.fr>
Cc: Vivian Wang <uwu@...m.page>, devicetree@...r.kernel.org,
linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
Vivian Wang <wangruikang@...as.ac.cn>
Subject: [PATCH 2/3] riscv: dts: spacemit: Move UARTs under dma-bus for K1
UART devices in Spacemit K1 use dma-bus DMA translations. Move these
nodes under dma-bus to reflect this fact.
Signed-off-by: Vivian Wang <wangruikang@...as.ac.cn>
---
arch/riscv/boot/dts/spacemit/k1.dtsi | 246 ++++++++++++++++++-----------------
1 file changed, 128 insertions(+), 118 deletions(-)
diff --git a/arch/riscv/boot/dts/spacemit/k1.dtsi b/arch/riscv/boot/dts/spacemit/k1.dtsi
index 99c76997b367f733c9dda2c30dd85817294ef9b7..0d41694699851e672a833601b62c2b2ad3daae79 100644
--- a/arch/riscv/boot/dts/spacemit/k1.dtsi
+++ b/arch/riscv/boot/dts/spacemit/k1.dtsi
@@ -357,114 +357,6 @@ syscon_apbc: system-controller@...15000 {
#reset-cells = <1>;
};
- uart0: serial@...17000 {
- compatible = "spacemit,k1-uart", "intel,xscale-uart";
- reg = <0x0 0xd4017000 0x0 0x100>;
- clocks = <&syscon_apbc CLK_UART0>,
- <&syscon_apbc CLK_UART0_BUS>;
- clock-names = "core", "bus";
- interrupts = <42>;
- reg-shift = <2>;
- reg-io-width = <4>;
- status = "disabled";
- };
-
- uart2: serial@...17100 {
- compatible = "spacemit,k1-uart", "intel,xscale-uart";
- reg = <0x0 0xd4017100 0x0 0x100>;
- clocks = <&syscon_apbc CLK_UART2>,
- <&syscon_apbc CLK_UART2_BUS>;
- clock-names = "core", "bus";
- interrupts = <44>;
- reg-shift = <2>;
- reg-io-width = <4>;
- status = "disabled";
- };
-
- uart3: serial@...17200 {
- compatible = "spacemit,k1-uart", "intel,xscale-uart";
- reg = <0x0 0xd4017200 0x0 0x100>;
- clocks = <&syscon_apbc CLK_UART3>,
- <&syscon_apbc CLK_UART3_BUS>;
- clock-names = "core", "bus";
- interrupts = <45>;
- reg-shift = <2>;
- reg-io-width = <4>;
- status = "disabled";
- };
-
- uart4: serial@...17300 {
- compatible = "spacemit,k1-uart", "intel,xscale-uart";
- reg = <0x0 0xd4017300 0x0 0x100>;
- clocks = <&syscon_apbc CLK_UART4>,
- <&syscon_apbc CLK_UART4_BUS>;
- clock-names = "core", "bus";
- interrupts = <46>;
- reg-shift = <2>;
- reg-io-width = <4>;
- status = "disabled";
- };
-
- uart5: serial@...17400 {
- compatible = "spacemit,k1-uart", "intel,xscale-uart";
- reg = <0x0 0xd4017400 0x0 0x100>;
- clocks = <&syscon_apbc CLK_UART5>,
- <&syscon_apbc CLK_UART5_BUS>;
- clock-names = "core", "bus";
- interrupts = <47>;
- reg-shift = <2>;
- reg-io-width = <4>;
- status = "disabled";
- };
-
- uart6: serial@...17500 {
- compatible = "spacemit,k1-uart", "intel,xscale-uart";
- reg = <0x0 0xd4017500 0x0 0x100>;
- clocks = <&syscon_apbc CLK_UART6>,
- <&syscon_apbc CLK_UART6_BUS>;
- clock-names = "core", "bus";
- interrupts = <48>;
- reg-shift = <2>;
- reg-io-width = <4>;
- status = "disabled";
- };
-
- uart7: serial@...17600 {
- compatible = "spacemit,k1-uart", "intel,xscale-uart";
- reg = <0x0 0xd4017600 0x0 0x100>;
- clocks = <&syscon_apbc CLK_UART7>,
- <&syscon_apbc CLK_UART7_BUS>;
- clock-names = "core", "bus";
- interrupts = <49>;
- reg-shift = <2>;
- reg-io-width = <4>;
- status = "disabled";
- };
-
- uart8: serial@...17700 {
- compatible = "spacemit,k1-uart", "intel,xscale-uart";
- reg = <0x0 0xd4017700 0x0 0x100>;
- clocks = <&syscon_apbc CLK_UART8>,
- <&syscon_apbc CLK_UART8_BUS>;
- clock-names = "core", "bus";
- interrupts = <50>;
- reg-shift = <2>;
- reg-io-width = <4>;
- status = "disabled";
- };
-
- uart9: serial@...17800 {
- compatible = "spacemit,k1-uart", "intel,xscale-uart";
- reg = <0x0 0xd4017800 0x0 0x100>;
- clocks = <&syscon_apbc CLK_UART9>,
- <&syscon_apbc CLK_UART9_BUS>;
- clock-names = "core", "bus";
- interrupts = <51>;
- reg-shift = <2>;
- reg-io-width = <4>;
- status = "disabled";
- };
-
gpio: gpio@...19000 {
compatible = "spacemit,k1-gpio";
reg = <0x0 0xd4019000 0x0 0x100>;
@@ -562,16 +454,6 @@ clint: timer@...00000 {
<&cpu7_intc 3>, <&cpu7_intc 7>;
};
- sec_uart1: serial@...12000 {
- compatible = "spacemit,k1-uart", "intel,xscale-uart";
- reg = <0x0 0xf0612000 0x0 0x100>;
- interrupts = <43>;
- clock-frequency = <14857000>;
- reg-shift = <2>;
- reg-io-width = <4>;
- status = "reserved"; /* for TEE usage */
- };
-
camera-bus {
compatible = "simple-bus";
ranges;
@@ -588,6 +470,134 @@ dma-bus {
#size-cells = <2>;
dma-ranges = <0x0 0x00000000 0x0 0x00000000 0x0 0x80000000>,
<0x1 0x00000000 0x1 0x80000000 0x3 0x00000000>;
+
+ uart0: serial@...17000 {
+ compatible = "spacemit,k1-uart",
+ "intel,xscale-uart";
+ reg = <0x0 0xd4017000 0x0 0x100>;
+ clocks = <&syscon_apbc CLK_UART0>,
+ <&syscon_apbc CLK_UART0_BUS>;
+ clock-names = "core", "bus";
+ interrupts = <42>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "disabled";
+ };
+
+ uart2: serial@...17100 {
+ compatible = "spacemit,k1-uart",
+ "intel,xscale-uart";
+ reg = <0x0 0xd4017100 0x0 0x100>;
+ clocks = <&syscon_apbc CLK_UART2>,
+ <&syscon_apbc CLK_UART2_BUS>;
+ clock-names = "core", "bus";
+ interrupts = <44>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "disabled";
+ };
+
+ uart3: serial@...17200 {
+ compatible = "spacemit,k1-uart",
+ "intel,xscale-uart";
+ reg = <0x0 0xd4017200 0x0 0x100>;
+ clocks = <&syscon_apbc CLK_UART3>,
+ <&syscon_apbc CLK_UART3_BUS>;
+ clock-names = "core", "bus";
+ interrupts = <45>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "disabled";
+ };
+
+ uart4: serial@...17300 {
+ compatible = "spacemit,k1-uart",
+ "intel,xscale-uart";
+ reg = <0x0 0xd4017300 0x0 0x100>;
+ clocks = <&syscon_apbc CLK_UART4>,
+ <&syscon_apbc CLK_UART4_BUS>;
+ clock-names = "core", "bus";
+ interrupts = <46>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "disabled";
+ };
+
+ uart5: serial@...17400 {
+ compatible = "spacemit,k1-uart",
+ "intel,xscale-uart";
+ reg = <0x0 0xd4017400 0x0 0x100>;
+ clocks = <&syscon_apbc CLK_UART5>,
+ <&syscon_apbc CLK_UART5_BUS>;
+ clock-names = "core", "bus";
+ interrupts = <47>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "disabled";
+ };
+
+ uart6: serial@...17500 {
+ compatible = "spacemit,k1-uart",
+ "intel,xscale-uart";
+ reg = <0x0 0xd4017500 0x0 0x100>;
+ clocks = <&syscon_apbc CLK_UART6>,
+ <&syscon_apbc CLK_UART6_BUS>;
+ clock-names = "core", "bus";
+ interrupts = <48>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "disabled";
+ };
+
+ uart7: serial@...17600 {
+ compatible = "spacemit,k1-uart",
+ "intel,xscale-uart";
+ reg = <0x0 0xd4017600 0x0 0x100>;
+ clocks = <&syscon_apbc CLK_UART7>,
+ <&syscon_apbc CLK_UART7_BUS>;
+ clock-names = "core", "bus";
+ interrupts = <49>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "disabled";
+ };
+
+ uart8: serial@...17700 {
+ compatible = "spacemit,k1-uart",
+ "intel,xscale-uart";
+ reg = <0x0 0xd4017700 0x0 0x100>;
+ clocks = <&syscon_apbc CLK_UART8>,
+ <&syscon_apbc CLK_UART8_BUS>;
+ clock-names = "core", "bus";
+ interrupts = <50>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "disabled";
+ };
+
+ uart9: serial@...17800 {
+ compatible = "spacemit,k1-uart",
+ "intel,xscale-uart";
+ reg = <0x0 0xd4017800 0x0 0x100>;
+ clocks = <&syscon_apbc CLK_UART9>,
+ <&syscon_apbc CLK_UART9_BUS>;
+ clock-names = "core", "bus";
+ interrupts = <51>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "disabled";
+ };
+
+ sec_uart1: serial@...12000 {
+ compatible = "spacemit,k1-uart",
+ "intel,xscale-uart";
+ reg = <0x0 0xf0612000 0x0 0x100>;
+ interrupts = <43>;
+ clock-frequency = <14857000>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "reserved"; /* for TEE usage */
+ };
};
multimedia-bus {
--
2.49.0
Powered by blists - more mailing lists