diff options
| author | Roland Dreier <rolandd@cisco.com> | 2005-11-07 00:58:11 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-07 07:53:26 -0800 |
| commit | fcc188e7fdddd8b23f900e485e6b3db05e7375f4 (patch) | |
| tree | 8da8cac96f2ca884039e31cd6ff9d00e21cc2aea /include/asm-ppc/ibm44x.h | |
| parent | 2104da90a9aeef31ff6441d171a7d0492088f1d0 (diff) | |
| download | op-kernel-dev-fcc188e7fdddd8b23f900e485e6b3db05e7375f4.zip op-kernel-dev-fcc188e7fdddd8b23f900e485e6b3db05e7375f4.tar.gz | |
[PATCH] ppc32: Allow ERPN for early serial to depend on CPU type
The PowerPC 440SPe supports up to 16 GB of RAM, and therefore its IO registers
are at 0x4_xxxx_xxxx instead of being at 0x1_xxxx_xxxx like most other PPC 440
chips. To allow for this, this patch moves the definition of the ERPN used
for mapping UART0 from being hard-coded in the head_44x.S assembly code to
being defined in ibm44x.h.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Matt Porter <mporter@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-ppc/ibm44x.h')
| -rw-r--r-- | include/asm-ppc/ibm44x.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/asm-ppc/ibm44x.h b/include/asm-ppc/ibm44x.h index e5374be..197a9ff 100644 --- a/include/asm-ppc/ibm44x.h +++ b/include/asm-ppc/ibm44x.h @@ -34,12 +34,17 @@ /* Lowest TLB slot consumed by the default pinned TLBs */ #define PPC44x_LOW_SLOT 63 -/* LS 32-bits of UART0 physical address location for early serial text debug */ +/* + * Least significant 32-bits and extended real page number (ERPN) of + * UART0 physical address location for early serial text debug + */ #if defined(CONFIG_440SP) +#define UART0_PHYS_ERPN 1 #define UART0_PHYS_IO_BASE 0xf0000200 #elif defined(CONFIG_440EP) #define UART0_PHYS_IO_BASE 0xe0000000 #else +#define UART0_PHYS_ERPN 1 #define UART0_PHYS_IO_BASE 0x40000200 #endif |
