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| author | David Gibson <david@gibson.dropbear.id.au> | 2007-05-08 12:59:31 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-05-08 14:47:33 +1000 |
| commit | d9b55a03611ff2e2e54fb4e1ad2648d5eb870fa3 (patch) | |
| tree | 5704be539afcd6f29b1f5751476c8b4f53673bff /arch/powerpc/Kconfig.debug | |
| parent | f6dfc80554b27da11dbb36ebae166b23ec3aa9ca (diff) | |
| download | op-kernel-dev-d9b55a03611ff2e2e54fb4e1ad2648d5eb870fa3.zip op-kernel-dev-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.debug | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug index 86aa374..f70e795 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 |
