On 21/08/14 12:46, Greg Ungerer wrote:
Hi Daniel,
On 20/08/14 01:16, Daniel Thompson wrote:
As part of the migration a couple of uart definitions have been copied from of the platform specific header files.
Note that, in order to keep oldconfig working nicely we must defer the removal of arch/arm/mach-ks8695/include/mach/debug-macro.S until DEBUG_LL_UART_NONE has been removed.
Signed-off-by: Daniel Thompson daniel.thompson@linaro.org Cc: Russell King linux@arm.linux.org.uk Cc: Greg Ungerer gerg@uclinux.org Cc: Arnd Bergmann arnd.bergmann@linaro.org
arch/arm/Kconfig.debug | 8 ++++++++ .../include/mach/debug-macro.S => include/debug/ks8695.S} | 10 +++++++--- 2 files changed, 15 insertions(+), 3 deletions(-) rename arch/arm/{mach-ks8695/include/mach/debug-macro.S => include/debug/ks8695.S} (80%)
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 9c46729..97c3058 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -348,6 +348,13 @@ choice Say Y here if you want the debug print routines to direct their output to UART1 serial port on KEYSTONE2 devices.
- config DEBUG_KS8695_UART
bool "KS8695 Debug UART"depends on ARCH_KS8695helpSay Y here if you want kernel low-level debugging supporton KS8695.config DEBUG_MMP_UART2 bool "Kernel low-level debugging message via MMP UART2" depends on ARCH_MMP@@ -1017,6 +1024,7 @@ config DEBUG_LL_INCLUDE DEBUG_IMX6Q_UART || \ DEBUG_IMX6SL_UART || \ DEBUG_IMX6SX_UART
- default "debug/ks8695.S" if DEBUG_KS8695_UART default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART
diff --git a/arch/arm/mach-ks8695/include/mach/debug-macro.S b/arch/arm/include/debug/ks8695.S similarity index 80% rename from arch/arm/mach-ks8695/include/mach/debug-macro.S rename to arch/arm/include/debug/ks8695.S index a79e489..961da1f 100644 --- a/arch/arm/mach-ks8695/include/mach/debug-macro.S +++ b/arch/arm/include/debug/ks8695.S @@ -1,5 +1,5 @@ /*
- arch/arm/mach-ks8695/include/mach/debug-macro.S
- arch/arm/include/debug/ks8695.S
- Copyright (C) 2006 Ben Dooks ben@simtec.co.uk
- Copyright (C) 2006 Simtec Electronics
@@ -11,8 +11,12 @@
- published by the Free Software Foundation.
*/ -#include <mach/hardware.h> -#include <mach/regs-uart.h> +#define KS8695_UART_PA 0x03ffe000 +#define KS8695_UART_VA 0xf00fe000 +#define KS8695_URTH (0x04) +#define KS8695_URLS (0x14) +#define URLS_URTE (1 << 6) +#define URLS_URTHRE (1 << 5)
Whats the thinking behind moving these definitions here? Is there a plan to move/change regs-uart.h?
I am trying to move *all* the debug macros into arch/arm/include/debug thus making all the debug macros multi-platform. To do this the macros cannot use headers found in mach-ks8695 because that would not be available on multi-platform builds.
The approach of moving a limited set of definitions into the macro is how other debug macros have been migrated.
To make ks8695 fully multi-platform would likely require regs-uart.h (and any associated driver) to migrate into drivers/tty/serial/ together with a *huge* pile of other work that I doubt anyone has much appetite for. Certainly I have no personal plans to seek further change on ks8695.
To be honest I'm only dabbling in this area at all in order to allow us to remove a nasty KConfig hack for that breaks multi_v7_defconfig+debug_ll on my two favoured test boards.