[PATCH v2 5/9] MIPS: debug_ll: Add Kconfig symbols for some 8250 uarts

From: Jiaxun Yang
Date: Tue Mar 26 2024 - 16:40:03 EST


Define platform symbols for all 8250 style uart type supported
by zboot, plus Loongson-2K and boston.

Signed-off-by: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
---
arch/mips/Kconfig.debug | 56 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 56 insertions(+)

diff --git a/arch/mips/Kconfig.debug b/arch/mips/Kconfig.debug
index 323ad3ec643b..3609d298a9eb 100644
--- a/arch/mips/Kconfig.debug
+++ b/arch/mips/Kconfig.debug
@@ -209,6 +209,54 @@ choice
selecting one of the platform specific options below if
you know the parameters for the port.

+ config DEBUG_BOSTON_UART
+ bool "Kernel low-level debugging messages via Boston UART"
+ depends on MIPS_GENERIC_KERNEL
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on IMG Boston board.
+
+ config DEBUG_MALTA_UART
+ bool "Kernel low-level debugging messages via malta UART"
+ depends on MIPS_MALTA
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on MTI malta board.
+
+ config DEBUG_AR71XX_UART
+ bool "Kernel low-level debugging messages via AR71XX UART"
+ depends on ATH79
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on AR71xx based platforms.
+
+ config DEBUG_LOONGSON3_UART
+ bool "Kernel low-level debugging messages via Loongson-3 UART"
+ depends on MACH_LOONGSON64
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Loongson-3 systems.
+
+ config DEBUG_LOONGSON2K_UART
+ bool "Kernel low-level debugging messages via Loongson 2K UART"
+ depends on MACH_LOONGSON64
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Loongson-2K SoCs.
+
+ config DEBUG_INGENIC_UART
+ bool "Kernel low-level debugging messages via Ingenic UART"
+ depends on MACH_INGENIC_SOC
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on uart0 of Ingenic SoCs.
+
endchoice

config DEBUG_LL_INCLUDE
@@ -239,6 +287,12 @@ config DEBUG_UART_FLOW_CONTROL
config DEBUG_UART_PHYS
hex "Physical base address of debug UART"
depends on DEBUG_LL_UART
+ default 0x17ffe000 if DEBUG_BOSTON_UART
+ default 0x1fd003f8 if DEBUG_MALTA_UART
+ default 0x18020000 if DEBUG_AR71XX_UART
+ default 0x1fd003f8 if DEBUG_LOONGSON3_UART
+ default 0x1fe00000 if DEBUG_LOONGSON2K_UART
+ default 0x10030000 if DEBUG_INGENIC_UART
help
This is the physical base address of the debug UART. It must be
accessible from unmapped kernel space (i.e. KSEG1 for 32bit kernels
@@ -247,6 +301,8 @@ config DEBUG_UART_PHYS
config DEBUG_UART_8250_SHIFT
int "Register offset shift for the 8250 debug UART"
depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
+ default 1 if DEBUG_MALTA_UART || DEBUG_LOONGSON3_UART || \
+ DEBUG_LOONGSON2K_UART
default 2

config DEBUG_UART_8250_WIDTH

--
2.34.1