PowerPC: Split early debug output and early boot console for 44x

PATCH New Valentine Barshak 1 participant 1 message Oct 18, 2007 PowerPC

Share & tools

Valentine Barshak

author

2007-10-18 12:56 UTC #0 lore raw

PATCH 1/1 PowerPC: Split early debug output and early boot console for 44x

Currently there's no way to enable early boot console on PowerPC 44x not specifying uart's physical address in kernel config, which is used for very early debug messages. This patch splits very early debug output (which needs uart physical address in kernel config) and early boot console (which searches for uarts in the device tree using find_legacy_serial_ports). We enable early boot console for all 44x processors, while (dangerous) early debug is user-selectable.

Signed-off-by Valentine Barshak <[email protected]>

---
 arch/powerpc/Kconfig.debug             |    1 -
 arch/powerpc/platforms/Kconfig.cputype |    1 +
 2 files changed, 1 insertion(+), 1 deletion(-)

arch/powerpc/Kconfig.debug +0 -1

diff -pruN linux-2.6.orig/arch/powerpc/Kconfig.debug linux-2.6/arch/powerpc/Kconfig.debug
@@ -216,7 +216,6 @@ config PPC_EARLY_DEBUG_BEAT
 config PPC_EARLY_DEBUG_44x
 	bool "Early serial debugging for IBM/AMCC 44x CPUs"
 	depends on 44x
-	select PPC_UDBG_16550
 	help
 	  Select this to enable early debugging for IBM 44x chips via the
 	  inbuilt serial port.

arch/powerpc/platforms/Kconfig.cputype +1 -0

diff -pruN linux-2.6.orig/arch/powerpc/platforms/Kconfig.cputype linux-2.6/arch/powerpc/platforms/Kconfig.cputype
@@ -48,6 +48,7 @@ config 44x
 	bool "AMCC 44x"
 	select PPC_DCR_NATIVE
 	select WANT_DEVICE_TREE
+	select PPC_UDBG_16550
 
 config E200
 	bool "Freescale e200"