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authorDavid Gibson <david@gibson.dropbear.id.au>2007-05-08 12:59:31 +1000
committerPaul Mackerras <paulus@samba.org>2007-05-08 14:47:33 +1000
commitd9b55a03611ff2e2e54fb4e1ad2648d5eb870fa3 (patch)
tree5704be539afcd6f29b1f5751476c8b4f53673bff /arch/powerpc/Kconfig.debug
parentf6dfc80554b27da11dbb36ebae166b23ec3aa9ca (diff)
downloadlinaro-lsk-d9b55a03611ff2e2e54fb4e1ad2648d5eb870fa3.tar.gz
[POWERPC] Early serial debug support for PPC44x
This adds support for early serial debugging via the built in port on IBM/AMCC PowerPC 44x CPUs. It uses a bolted TLB entry in address space 1 for the UART's mapping, allowing robust debugging both before and after the initialization of the MMU. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/Kconfig.debug')
-rw-r--r--arch/powerpc/Kconfig.debug22
1 files changed, 18 insertions, 4 deletions
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug
index 86aa3745af7..f70e795c262 100644
--- a/arch/powerpc/Kconfig.debug
+++ b/arch/powerpc/Kconfig.debug
@@ -139,10 +139,6 @@ config BOOTX_TEXT
Say Y here to see progress messages from the boot firmware in text
mode. Requires either BootX or Open Firmware.
-config SERIAL_TEXT_DEBUG
- bool "Support for early boot texts over serial port"
- depends on 4xx
-
config PPC_EARLY_DEBUG
bool "Early debugging (dangerous)"
@@ -207,6 +203,24 @@ config PPC_EARLY_DEBUG_BEAT
help
Select this to enable early debugging for Celleb with 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.
+
endchoice
+config PPC_EARLY_DEBUG_44x_PHYSLOW
+ hex "Low 32 bits of early debug UART physical address"
+ depends PPC_EARLY_DEBUG_44x
+ default "0x40000200"
+
+config PPC_EARLY_DEBUG_44x_PHYSHIGH
+ hex "EPRN of early debug UART physical address"
+ depends PPC_EARLY_DEBUG_44x
+ default "0x1"
+
endmenu