Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux...

[sfrench/cifs-2.6.git] / arch / powerpc / Kconfig.debug

diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug
index 5c71624ee38d41708af7dc299417c601606cde7d..db7cc34c24d4d983030adeebb029be70925587e3 100644 (file)
--- a/arch/powerpc/Kconfig.debug
+++ b/arch/powerpc/Kconfig.debug
@@ -20,7 +20,7 @@ config DEBUG_STACK_USAGE
 
 config DEBUG_PAGEALLOC
         bool "Debug page memory allocations"
-        depends on DEBUG_KERNEL && !SOFTWARE_SUSPEND
+        depends on DEBUG_KERNEL && !HIBERNATION
         help
           Unmap pages from the kernel linear mapping after free_pages().
           This results in a large slowdown, but helps to find certain types
@@ -124,6 +124,16 @@ config IRQSTACKS
          for handling hard and soft interrupts.  This can help avoid
          overflowing the process kernel stacks.
 
+config VIRQ_DEBUG
+       bool "Expose hardware/virtual IRQ mapping via debugfs"
+       depends on DEBUG_FS && PPC_MERGE
+       help
+         This option will show the mapping relationship between hardware irq
+         numbers and virtual irq numbers. The mapping is exposed via debugfs
+         in the file powerpc/virq_mapping.
+
+         If you don't know what this means you don't need it.
+
 config BDI_SWITCH
        bool "Include BDI-2000 user context switcher"
        depends on DEBUG_KERNEL && PPC32
@@ -134,13 +144,20 @@ config BDI_SWITCH
 
 config BOOTX_TEXT
        bool "Support for early boot text console (BootX or OpenFirmware only)"
-       depends PPC_OF && PPC_MULTIPLATFORM
+       depends on PPC_OF && PPC_MULTIPLATFORM
        help
          Say Y here to see progress messages from the boot firmware in text
          mode. Requires either BootX or Open Firmware.
 
 config PPC_EARLY_DEBUG
        bool "Early debugging (dangerous)"
+       help
+         Say Y to enable some early debugging facilities that may be available
+         for your processor/board combination. Those facilities are hacks
+         intended to debug problems early during boot, this should not be
+         enabled in a production kernel.
+         Note that enabling this will also cause the kernel default log level
+         to be pushed to max automatically very early during boot
 
 choice
        prompt "Early debugging console"
@@ -206,21 +223,58 @@ 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.
+         inbuilt serial port.  If you enable this, ensure you set
+          PPC_EARLY_DEBUG_44x_PHYSLOW below to suit your target board.
+
+config PPC_EARLY_DEBUG_40x
+       bool "Early serial debugging for IBM/AMCC 40x CPUs"
+       depends on 40x
+       help
+         Select this to enable early debugging for IBM 40x chips via the
+         inbuilt serial port. This works on chips with a 16550 compatible
+         UART. Xilinx chips with uartlite cannot use this option.
+
+config PPC_EARLY_DEBUG_CPM
+       bool "Early serial debugging for Freescale CPM-based serial ports"
+       depends on SERIAL_CPM
+       select PIN_TLB if PPC_8xx
+       help
+         Select this to enable early debugging for Freescale chips
+         using a CPM-based serial port.  This assumes that the bootwrapper
+         has run, and set up the CPM in a particular way.
 
 endchoice
 
 config PPC_EARLY_DEBUG_44x_PHYSLOW
        hex "Low 32 bits of early debug UART physical address"
-       depends PPC_EARLY_DEBUG_44x
+       depends on PPC_EARLY_DEBUG_44x
        default "0x40000200"
+       help
+         You probably want 0x40000200 for ebony boards and
+          0x40000300 for taishan
 
 config PPC_EARLY_DEBUG_44x_PHYSHIGH
        hex "EPRN of early debug UART physical address"
-       depends PPC_EARLY_DEBUG_44x
+       depends on PPC_EARLY_DEBUG_44x
        default "0x1"
 
+config PPC_EARLY_DEBUG_40x_PHYSADDR
+       hex "Early debug UART physical address"
+       depends on PPC_EARLY_DEBUG_40x
+       default "0xef600300"
+
+config PPC_EARLY_DEBUG_CPM_ADDR
+       hex "CPM UART early debug transmit descriptor address"
+       depends on PPC_EARLY_DEBUG_CPM
+       default "0xfa202008" if PPC_EP88XC
+       default "0xf0000008" if CPM2
+       default "0xff002008" if CPM1
+       help
+         This specifies the address of the transmit descriptor
+         used for early debug output.  Because it is needed before
+         platform probing is done, all platforms selected must
+         share the same address.
+
 endmenu