* [PATCH 0/2] Add Aspeed G7 uart routing support
@ 2026-02-03 3:55 Jammy Huang
2026-02-03 3:55 ` [PATCH 1/2] dt-bindings: soc: aspeed: add aspeed,ast2700nx-uart-routing compatible Jammy Huang
2026-02-03 3:55 ` [PATCH 2/2] soc: aspeed: uart-routing: Add AST27xx dual node support Jammy Huang
0 siblings, 2 replies; 4+ messages in thread
From: Jammy Huang @ 2026-02-03 3:55 UTC (permalink / raw)
To: Joel Stanley, Andrew Jeffery, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Oskar Senft, Chia-Wei Wang
Cc: linux-arm-kernel, linux-aspeed, linux-kernel, devicetree, Jammy Huang
The Aspeed 7th generation SoC supports dual node. Which means there are
2 group of uart routing.
* 0: uart0/1/2/3/9
* 1: uart5/6/7/8/10
Signed-off-by: Jammy Huang <jammy_huang@aspeedtech.com>
---
Chia-Wei Wang (1):
soc: aspeed: uart-routing: Add AST27xx dual node support
Jammy Huang (1):
dt-bindings: soc: aspeed: add aspeed,ast2700nx-uart-routing compatible
.../bindings/soc/aspeed/uart-routing.yaml | 2 +
drivers/soc/aspeed/aspeed-uart-routing.c | 424 +++++++++++++++++++++
2 files changed, 426 insertions(+)
---
base-commit: 4d310797262f0ddf129e76c2aad2b950adaf1fda
change-id: 20260130-upstream_uart_routing-1382b12e1bfb
Best regards,
--
Jammy Huang <jammy_huang@aspeedtech.com>
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH 1/2] dt-bindings: soc: aspeed: add aspeed,ast2700nx-uart-routing compatible
2026-02-03 3:55 [PATCH 0/2] Add Aspeed G7 uart routing support Jammy Huang
@ 2026-02-03 3:55 ` Jammy Huang
2026-02-04 17:54 ` Conor Dooley
2026-02-03 3:55 ` [PATCH 2/2] soc: aspeed: uart-routing: Add AST27xx dual node support Jammy Huang
1 sibling, 1 reply; 4+ messages in thread
From: Jammy Huang @ 2026-02-03 3:55 UTC (permalink / raw)
To: Joel Stanley, Andrew Jeffery, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Oskar Senft, Chia-Wei Wang
Cc: linux-arm-kernel, linux-aspeed, linux-kernel, devicetree, Jammy Huang
Add aspeed,ast2700n0-uart-routing and aspeed,ast2700n1-uart-routing
dedicated compatible for representing the Aspeed 7th generation.
Signed-off-by: Jammy Huang <jammy_huang@aspeedtech.com>
---
Documentation/devicetree/bindings/soc/aspeed/uart-routing.yaml | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/soc/aspeed/uart-routing.yaml b/Documentation/devicetree/bindings/soc/aspeed/uart-routing.yaml
index 51aaf34acb..6e0d63ca8b 100644
--- a/Documentation/devicetree/bindings/soc/aspeed/uart-routing.yaml
+++ b/Documentation/devicetree/bindings/soc/aspeed/uart-routing.yaml
@@ -31,6 +31,8 @@ properties:
- aspeed,ast2400-uart-routing
- aspeed,ast2500-uart-routing
- aspeed,ast2600-uart-routing
+ - aspeed,ast2700n0-uart-routing
+ - aspeed,ast2700n1-uart-routing
reg:
maxItems: 1
--
2.34.1
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH 2/2] soc: aspeed: uart-routing: Add AST27xx dual node support
2026-02-03 3:55 [PATCH 0/2] Add Aspeed G7 uart routing support Jammy Huang
2026-02-03 3:55 ` [PATCH 1/2] dt-bindings: soc: aspeed: add aspeed,ast2700nx-uart-routing compatible Jammy Huang
@ 2026-02-03 3:55 ` Jammy Huang
1 sibling, 0 replies; 4+ messages in thread
From: Jammy Huang @ 2026-02-03 3:55 UTC (permalink / raw)
To: Joel Stanley, Andrew Jeffery, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Oskar Senft, Chia-Wei Wang
Cc: linux-arm-kernel, linux-aspeed, linux-kernel, devicetree, Jammy Huang
From: Chia-Wei Wang <chiawei_wang@aspeedtech.com>
Add dual node support for AST27xx SoCs.
Signed-off-by: Chia-Wei Wang <chiawei_wang@aspeedtech.com>
Signed-off-by: Jammy Huang <jammy_huang@aspeedtech.com>
---
drivers/soc/aspeed/aspeed-uart-routing.c | 424 +++++++++++++++++++++++++++++++
1 file changed, 424 insertions(+)
diff --git a/drivers/soc/aspeed/aspeed-uart-routing.c b/drivers/soc/aspeed/aspeed-uart-routing.c
index 0191e36e66..9b648f5a1b 100644
--- a/drivers/soc/aspeed/aspeed-uart-routing.c
+++ b/drivers/soc/aspeed/aspeed-uart-routing.c
@@ -15,20 +15,30 @@
#define HICRA 0x9c
/* attributes options */
+#define UART_ROUTING_IO0 "io0"
#define UART_ROUTING_IO1 "io1"
#define UART_ROUTING_IO2 "io2"
#define UART_ROUTING_IO3 "io3"
#define UART_ROUTING_IO4 "io4"
#define UART_ROUTING_IO5 "io5"
#define UART_ROUTING_IO6 "io6"
+#define UART_ROUTING_IO7 "io7"
+#define UART_ROUTING_IO8 "io8"
+#define UART_ROUTING_IO9 "io9"
#define UART_ROUTING_IO10 "io10"
+#define UART_ROUTING_IO12 "io12"
+#define UART_ROUTING_UART0 "uart0"
#define UART_ROUTING_UART1 "uart1"
#define UART_ROUTING_UART2 "uart2"
#define UART_ROUTING_UART3 "uart3"
#define UART_ROUTING_UART4 "uart4"
#define UART_ROUTING_UART5 "uart5"
#define UART_ROUTING_UART6 "uart6"
+#define UART_ROUTING_UART7 "uart7"
+#define UART_ROUTING_UART8 "uart8"
+#define UART_ROUTING_UART9 "uart9"
#define UART_ROUTING_UART10 "uart10"
+#define UART_ROUTING_UART12 "uart12"
#define UART_ROUTING_RES "reserved"
struct aspeed_uart_routing {
@@ -488,6 +498,416 @@ static const struct attribute_group ast2600_uart_routing_attr_group = {
.attrs = ast2600_uart_routing_attrs,
};
+/* routing selector for AST27xx node 0 */
+static struct aspeed_uart_routing_selector ast2700n0_uart9_sel = {
+ .dev_attr = ROUTING_ATTR(UART_ROUTING_UART9),
+ .reg = HICR9,
+ .shift = 12,
+ .mask = 0xf,
+ .options = {
+ UART_ROUTING_IO9,
+ UART_ROUTING_IO0,
+ UART_ROUTING_IO1,
+ UART_ROUTING_IO2,
+ UART_ROUTING_IO3,
+ UART_ROUTING_RES,
+ UART_ROUTING_UART0,
+ UART_ROUTING_UART1,
+ UART_ROUTING_UART2,
+ UART_ROUTING_UART3,
+ UART_ROUTING_UART12,
+ NULL,
+ },
+};
+
+static struct aspeed_uart_routing_selector ast2700n0_io9_sel = {
+ .dev_attr = ROUTING_ATTR(UART_ROUTING_IO9),
+ .reg = HICR9,
+ .shift = 8,
+ .mask = 0xf,
+ .options = {
+ UART_ROUTING_UART0,
+ UART_ROUTING_UART1,
+ UART_ROUTING_UART2,
+ UART_ROUTING_UART3,
+ UART_ROUTING_UART12,
+ UART_ROUTING_IO0,
+ UART_ROUTING_IO1,
+ UART_ROUTING_IO2,
+ UART_ROUTING_IO3,
+ UART_ROUTING_RES,
+ UART_ROUTING_UART9,
+ NULL,
+ },
+};
+
+static struct aspeed_uart_routing_selector ast2700n0_uart3_sel = {
+ .dev_attr = ROUTING_ATTR(UART_ROUTING_UART3),
+ .reg = HICRA,
+ .shift = 25,
+ .mask = 0x7,
+ .options = {
+ UART_ROUTING_IO3,
+ UART_ROUTING_IO0,
+ UART_ROUTING_IO1,
+ UART_ROUTING_IO2,
+ UART_ROUTING_UART0,
+ UART_ROUTING_UART1,
+ UART_ROUTING_UART2,
+ UART_ROUTING_IO9,
+ NULL,
+ },
+};
+
+static struct aspeed_uart_routing_selector ast2700n0_uart2_sel = {
+ .dev_attr = ROUTING_ATTR(UART_ROUTING_UART2),
+ .reg = HICRA,
+ .shift = 22,
+ .mask = 0x7,
+ .options = {
+ UART_ROUTING_IO2,
+ UART_ROUTING_IO3,
+ UART_ROUTING_IO0,
+ UART_ROUTING_IO1,
+ UART_ROUTING_UART3,
+ UART_ROUTING_UART0,
+ UART_ROUTING_UART1,
+ UART_ROUTING_IO9,
+ NULL,
+ },
+};
+
+static struct aspeed_uart_routing_selector ast2700n0_uart1_sel = {
+ .dev_attr = ROUTING_ATTR(UART_ROUTING_UART1),
+ .reg = HICRA,
+ .shift = 19,
+ .mask = 0x7,
+ .options = {
+ UART_ROUTING_IO1,
+ UART_ROUTING_IO2,
+ UART_ROUTING_IO3,
+ UART_ROUTING_IO0,
+ UART_ROUTING_UART2,
+ UART_ROUTING_UART3,
+ UART_ROUTING_UART0,
+ UART_ROUTING_IO9,
+ NULL,
+ },
+};
+
+static struct aspeed_uart_routing_selector ast2700n0_uart0_sel = {
+ .dev_attr = ROUTING_ATTR(UART_ROUTING_UART0),
+ .reg = HICRA,
+ .shift = 16,
+ .mask = 0x7,
+ .options = {
+ UART_ROUTING_IO0,
+ UART_ROUTING_IO1,
+ UART_ROUTING_IO2,
+ UART_ROUTING_IO3,
+ UART_ROUTING_UART1,
+ UART_ROUTING_UART2,
+ UART_ROUTING_UART3,
+ UART_ROUTING_IO9,
+ NULL,
+ },
+};
+
+static struct aspeed_uart_routing_selector ast2700n0_io3_sel = {
+ .dev_attr = ROUTING_ATTR(UART_ROUTING_IO3),
+ .reg = HICRA,
+ .shift = 9,
+ .mask = 0x7,
+ .options = {
+ UART_ROUTING_UART3,
+ UART_ROUTING_UART9,
+ UART_ROUTING_UART0,
+ UART_ROUTING_UART1,
+ UART_ROUTING_UART2,
+ UART_ROUTING_IO0,
+ UART_ROUTING_IO1,
+ UART_ROUTING_IO9,
+ NULL,
+ },
+};
+
+static struct aspeed_uart_routing_selector ast2700n0_io2_sel = {
+ .dev_attr = ROUTING_ATTR(UART_ROUTING_IO2),
+ .reg = HICRA,
+ .shift = 6,
+ .mask = 0x7,
+ .options = {
+ UART_ROUTING_UART2,
+ UART_ROUTING_UART3,
+ UART_ROUTING_UART9,
+ UART_ROUTING_UART0,
+ UART_ROUTING_UART1,
+ UART_ROUTING_IO0,
+ UART_ROUTING_IO1,
+ UART_ROUTING_IO9,
+ NULL,
+ },
+};
+
+static struct aspeed_uart_routing_selector ast2700n0_io1_sel = {
+ .dev_attr = ROUTING_ATTR(UART_ROUTING_IO1),
+ .reg = HICRA,
+ .shift = 3,
+ .mask = 0x7,
+ .options = {
+ UART_ROUTING_UART1,
+ UART_ROUTING_UART2,
+ UART_ROUTING_UART3,
+ UART_ROUTING_UART9,
+ UART_ROUTING_UART0,
+ UART_ROUTING_IO2,
+ UART_ROUTING_IO3,
+ UART_ROUTING_IO9,
+ NULL,
+ },
+};
+
+static struct aspeed_uart_routing_selector ast2700n0_io0_sel = {
+ .dev_attr = ROUTING_ATTR(UART_ROUTING_IO0),
+ .reg = HICRA,
+ .shift = 0,
+ .mask = 0x7,
+ .options = {
+ UART_ROUTING_UART0,
+ UART_ROUTING_UART1,
+ UART_ROUTING_UART2,
+ UART_ROUTING_UART3,
+ UART_ROUTING_UART9,
+ UART_ROUTING_IO2,
+ UART_ROUTING_IO3,
+ UART_ROUTING_IO9,
+ NULL,
+ },
+};
+
+static struct attribute *ast2700n0_uart_routing_attrs[] = {
+ &ast2700n0_uart9_sel.dev_attr.attr,
+ &ast2700n0_io9_sel.dev_attr.attr,
+ &ast2700n0_uart3_sel.dev_attr.attr,
+ &ast2700n0_uart2_sel.dev_attr.attr,
+ &ast2700n0_uart1_sel.dev_attr.attr,
+ &ast2700n0_uart0_sel.dev_attr.attr,
+ &ast2700n0_io3_sel.dev_attr.attr,
+ &ast2700n0_io2_sel.dev_attr.attr,
+ &ast2700n0_io1_sel.dev_attr.attr,
+ &ast2700n0_io0_sel.dev_attr.attr,
+ NULL,
+};
+
+static const struct attribute_group ast2700n0_uart_routing_attr_group = {
+ .attrs = ast2700n0_uart_routing_attrs,
+};
+
+/* routing selector for AST27xx node 1 */
+static struct aspeed_uart_routing_selector ast2700n1_uart10_sel = {
+ .dev_attr = ROUTING_ATTR(UART_ROUTING_UART10),
+ .reg = HICR9,
+ .shift = 12,
+ .mask = 0xf,
+ .options = {
+ UART_ROUTING_IO10,
+ UART_ROUTING_IO5,
+ UART_ROUTING_IO6,
+ UART_ROUTING_IO7,
+ UART_ROUTING_IO8,
+ UART_ROUTING_RES,
+ UART_ROUTING_UART5,
+ UART_ROUTING_UART6,
+ UART_ROUTING_UART7,
+ UART_ROUTING_UART8,
+ UART_ROUTING_UART12,
+ NULL,
+ },
+};
+
+static struct aspeed_uart_routing_selector ast2700n1_io10_sel = {
+ .dev_attr = ROUTING_ATTR(UART_ROUTING_IO10),
+ .reg = HICR9,
+ .shift = 8,
+ .mask = 0xf,
+ .options = {
+ UART_ROUTING_UART5,
+ UART_ROUTING_UART6,
+ UART_ROUTING_UART7,
+ UART_ROUTING_UART8,
+ UART_ROUTING_UART12,
+ UART_ROUTING_IO5,
+ UART_ROUTING_IO6,
+ UART_ROUTING_IO7,
+ UART_ROUTING_IO8,
+ UART_ROUTING_RES,
+ UART_ROUTING_UART10,
+ NULL,
+ },
+};
+
+static struct aspeed_uart_routing_selector ast2700n1_uart8_sel = {
+ .dev_attr = ROUTING_ATTR(UART_ROUTING_UART8),
+ .reg = HICRA,
+ .shift = 25,
+ .mask = 0x7,
+ .options = {
+ UART_ROUTING_IO8,
+ UART_ROUTING_IO5,
+ UART_ROUTING_IO6,
+ UART_ROUTING_IO7,
+ UART_ROUTING_UART5,
+ UART_ROUTING_UART6,
+ UART_ROUTING_UART7,
+ UART_ROUTING_IO10,
+ NULL,
+ },
+};
+
+static struct aspeed_uart_routing_selector ast2700n1_uart7_sel = {
+ .dev_attr = ROUTING_ATTR(UART_ROUTING_UART7),
+ .reg = HICRA,
+ .shift = 22,
+ .mask = 0x7,
+ .options = {
+ UART_ROUTING_IO7,
+ UART_ROUTING_IO8,
+ UART_ROUTING_IO5,
+ UART_ROUTING_IO6,
+ UART_ROUTING_UART8,
+ UART_ROUTING_UART5,
+ UART_ROUTING_UART6,
+ UART_ROUTING_IO10,
+ NULL,
+ },
+};
+
+static struct aspeed_uart_routing_selector ast2700n1_uart6_sel = {
+ .dev_attr = ROUTING_ATTR(UART_ROUTING_UART6),
+ .reg = HICRA,
+ .shift = 19,
+ .mask = 0x7,
+ .options = {
+ UART_ROUTING_IO6,
+ UART_ROUTING_IO7,
+ UART_ROUTING_IO8,
+ UART_ROUTING_IO5,
+ UART_ROUTING_UART7,
+ UART_ROUTING_UART8,
+ UART_ROUTING_UART5,
+ UART_ROUTING_IO10,
+ NULL,
+ },
+};
+
+static struct aspeed_uart_routing_selector ast2700n1_uart5_sel = {
+ .dev_attr = ROUTING_ATTR(UART_ROUTING_UART5),
+ .reg = HICRA,
+ .shift = 16,
+ .mask = 0x7,
+ .options = {
+ UART_ROUTING_IO5,
+ UART_ROUTING_IO6,
+ UART_ROUTING_IO7,
+ UART_ROUTING_IO8,
+ UART_ROUTING_UART6,
+ UART_ROUTING_UART7,
+ UART_ROUTING_UART8,
+ UART_ROUTING_IO10,
+ NULL,
+ },
+};
+
+static struct aspeed_uart_routing_selector ast2700n1_io8_sel = {
+ .dev_attr = ROUTING_ATTR(UART_ROUTING_IO8),
+ .reg = HICRA,
+ .shift = 9,
+ .mask = 0x7,
+ .options = {
+ UART_ROUTING_UART8,
+ UART_ROUTING_UART10,
+ UART_ROUTING_UART5,
+ UART_ROUTING_UART6,
+ UART_ROUTING_UART7,
+ UART_ROUTING_IO5,
+ UART_ROUTING_IO6,
+ UART_ROUTING_IO10,
+ NULL,
+ },
+};
+
+static struct aspeed_uart_routing_selector ast2700n1_io7_sel = {
+ .dev_attr = ROUTING_ATTR(UART_ROUTING_IO7),
+ .reg = HICRA,
+ .shift = 6,
+ .mask = 0x7,
+ .options = {
+ UART_ROUTING_UART7,
+ UART_ROUTING_UART8,
+ UART_ROUTING_UART10,
+ UART_ROUTING_UART5,
+ UART_ROUTING_UART6,
+ UART_ROUTING_IO5,
+ UART_ROUTING_IO6,
+ UART_ROUTING_IO10,
+ NULL,
+ },
+};
+
+static struct aspeed_uart_routing_selector ast2700n1_io6_sel = {
+ .dev_attr = ROUTING_ATTR(UART_ROUTING_IO6),
+ .reg = HICRA,
+ .shift = 3,
+ .mask = 0x7,
+ .options = {
+ UART_ROUTING_UART6,
+ UART_ROUTING_UART7,
+ UART_ROUTING_UART8,
+ UART_ROUTING_UART10,
+ UART_ROUTING_UART5,
+ UART_ROUTING_IO7,
+ UART_ROUTING_IO8,
+ UART_ROUTING_IO10,
+ NULL,
+ },
+};
+
+static struct aspeed_uart_routing_selector ast2700n1_io5_sel = {
+ .dev_attr = ROUTING_ATTR(UART_ROUTING_IO5),
+ .reg = HICRA,
+ .shift = 0,
+ .mask = 0x7,
+ .options = {
+ UART_ROUTING_UART5,
+ UART_ROUTING_UART6,
+ UART_ROUTING_UART7,
+ UART_ROUTING_UART8,
+ UART_ROUTING_UART10,
+ UART_ROUTING_IO7,
+ UART_ROUTING_IO8,
+ UART_ROUTING_IO10,
+ NULL,
+ },
+};
+
+static struct attribute *ast2700n1_uart_routing_attrs[] = {
+ &ast2700n1_uart10_sel.dev_attr.attr,
+ &ast2700n1_io10_sel.dev_attr.attr,
+ &ast2700n1_uart8_sel.dev_attr.attr,
+ &ast2700n1_uart7_sel.dev_attr.attr,
+ &ast2700n1_uart6_sel.dev_attr.attr,
+ &ast2700n1_uart5_sel.dev_attr.attr,
+ &ast2700n1_io8_sel.dev_attr.attr,
+ &ast2700n1_io7_sel.dev_attr.attr,
+ &ast2700n1_io6_sel.dev_attr.attr,
+ &ast2700n1_io5_sel.dev_attr.attr,
+ NULL,
+};
+
+static const struct attribute_group ast2700n1_uart_routing_attr_group = {
+ .attrs = ast2700n1_uart_routing_attrs,
+};
+
static ssize_t aspeed_uart_routing_show(struct device *dev,
struct device_attribute *attr,
char *buf)
@@ -580,6 +1000,10 @@ static const struct of_device_id aspeed_uart_routing_table[] = {
.data = &ast2500_uart_routing_attr_group },
{ .compatible = "aspeed,ast2600-uart-routing",
.data = &ast2600_uart_routing_attr_group },
+ { .compatible = "aspeed,ast2700n0-uart-routing",
+ .data = &ast2700n0_uart_routing_attr_group },
+ { .compatible = "aspeed,ast2700n1-uart-routing",
+ .data = &ast2700n1_uart_routing_attr_group },
{ },
};
--
2.34.1
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH 1/2] dt-bindings: soc: aspeed: add aspeed,ast2700nx-uart-routing compatible
2026-02-03 3:55 ` [PATCH 1/2] dt-bindings: soc: aspeed: add aspeed,ast2700nx-uart-routing compatible Jammy Huang
@ 2026-02-04 17:54 ` Conor Dooley
0 siblings, 0 replies; 4+ messages in thread
From: Conor Dooley @ 2026-02-04 17:54 UTC (permalink / raw)
To: Jammy Huang
Cc: Joel Stanley, Andrew Jeffery, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Oskar Senft, Chia-Wei Wang, linux-arm-kernel,
linux-aspeed, linux-kernel, devicetree
[-- Attachment #1: Type: text/plain, Size: 75 bytes --]
Acked-by: Conor Dooley <conor.dooley@microchip.com>
pw-bot: not-applicable
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 228 bytes --]
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2026-02-04 17:54 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2026-02-03 3:55 [PATCH 0/2] Add Aspeed G7 uart routing support Jammy Huang
2026-02-03 3:55 ` [PATCH 1/2] dt-bindings: soc: aspeed: add aspeed,ast2700nx-uart-routing compatible Jammy Huang
2026-02-04 17:54 ` Conor Dooley
2026-02-03 3:55 ` [PATCH 2/2] soc: aspeed: uart-routing: Add AST27xx dual node support Jammy Huang
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