[POWERPC] 4xx: Base support for 440GX Taishan eval board

This patch adds base support for the AMCC Taishan 440GX evaluation
board.

Signed-off-by: Hugh Blemings <hugh@blemings.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug
index 179a453f7e04..db7cc34c24d4 100644
--- a/arch/powerpc/Kconfig.debug
+++ b/arch/powerpc/Kconfig.debug
@@ -225,7 +225,8 @@ config PPC_EARLY_DEBUG_44x
         depends on 44x
         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"
@@ -250,6 +251,9 @@ config PPC_EARLY_DEBUG_44x_PHYSLOW
         hex "Low 32 bits of early debug UART physical address"
         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"