ARM: at91: debug: add lan966 support

Started by Kavyasree Kotagiri on Feb 9, 2022 · 2 messages from 2 authors · Last reply Feb 15, 2022

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STALE1725d

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Kavyasree Kotagiri

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Add support for low-level debugging on FLEXCOM3 USART of
LAN966 SoC.

Signed-off-by: Kavyasree Kotagiri <redacted>
---
 arch/arm/Kconfig.debug | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 976315dea958..7989d0633188 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -210,6 +210,14 @@ choice
 		  Say Y here if you want kernel low-level debugging support
 		  on the FLEXCOM3 port of SAMA7G5.
 
+        config DEBUG_AT91_LAN966_FLEXCOM3
+                bool "Kernel low-level debugging on LAN966 FLEXCOM3 USART"
+                select DEBUG_AT91_UART
+                depends on SOC_LAN966
+                help
+                  Say Y here if you want kernel low-level debugging support
+                  on the FLEXCOM3 port of LAN966.
+
 	config DEBUG_BCM2835
 		bool "Kernel low-level debugging on BCM2835 PL011 UART"
 		depends on ARCH_BCM2835 && ARCH_MULTI_V6
@@ -1685,6 +1693,7 @@ config DEBUG_UART_PHYS
 	default 0xd4017000 if DEBUG_MMP_UART2
 	default 0xd4018000 if DEBUG_MMP_UART3
 	default 0xe0000000 if DEBUG_SPEAR13XX
+	default 0xe0040200 if DEBUG_AT91_LAN966_FLEXCOM3
 	default 0xe1824200 if DEBUG_AT91_SAMA7G5_FLEXCOM3
 	default 0xe4007000 if DEBUG_HIP04_UART
 	default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
@@ -1805,6 +1814,7 @@ config DEBUG_UART_VIRT
 	default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
 	default 0xfcfe8600 if DEBUG_BCM63XX_UART
 	default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX
+	default 0xfd040200 if DEBUG_AT91_LAN966_FLEXCOM3
 	default 0xfd531000 if DEBUG_STIH41X_SBC_ASC1
 	default 0xfd883000 if DEBUG_ALPINE_UART0
 	default 0xfdd32000 if DEBUG_STIH41X_ASC2
-- 
2.17.1


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Michael Walle replied to Kavyasree Kotagiri

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Hi,
quoted hunk
Add support for low-level debugging on FLEXCOM3 USART of
LAN966 SoC.

Signed-off-by: Kavyasree Kotagiri <redacted>
---
 arch/arm/Kconfig.debug | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 976315dea958..7989d0633188 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -210,6 +210,14 @@ choice
 		  Say Y here if you want kernel low-level debugging support
 		  on the FLEXCOM3 port of SAMA7G5.
 
+        config DEBUG_AT91_LAN966_FLEXCOM3
Can we use DEBUG_AT91_LAN966_FLEXCOM here and provide a table with
all the different offsets for all flexcoms, and maybe default to flexcom0
(or flexcom3, I'm not sure).
quoted hunk
+                bool "Kernel low-level debugging on LAN966 FLEXCOM3 USART"
+                select DEBUG_AT91_UART
+                depends on SOC_LAN966
+                help
+                  Say Y here if you want kernel low-level debugging support
+                  on the FLEXCOM3 port of LAN966.
+
 	config DEBUG_BCM2835
 		bool "Kernel low-level debugging on BCM2835 PL011 UART"
 		depends on ARCH_BCM2835 && ARCH_MULTI_V6
@@ -1685,6 +1693,7 @@ config DEBUG_UART_PHYS
 	default 0xd4017000 if DEBUG_MMP_UART2
 	default 0xd4018000 if DEBUG_MMP_UART3
 	default 0xe0000000 if DEBUG_SPEAR13XX
+	default 0xe0040200 if DEBUG_AT91_LAN966_FLEXCOM3
This is the base address of the flexcom0 uart, not flexcom3.

-michael

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