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[POWERPC] Improve MPIC driver auto-configuration from DT

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This patch applies on top of the MPIC DCR support. It makes the MPIC
driver capable of a lot more auto-configuration based on the device-tree,
for example, it can retreive it's own physical address if not passed as
an argument, find out if it's DCR or MMIO mapped, and set the BIG_ENDIAN
flag automatically in the presence of a "big-endian" property in the
device-tree node.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Benjamin Herrenschmidt 2006-11-11 17:24:56 +11:00 • committed by Paul Mackerras
commit a959ff56bb
2 changed files with 39 additions and 15 deletions
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4
include/asm-powerpc/mpic.h
View file

@ -364,7 +364,7 @@ struct mpic
* that is senses[0] correspond to linux irq "irq_offset".
*/
extern struct mpic *mpic_alloc(struct device_node *node,
unsigned long phys_addr,
phys_addr_t phys_addr,
unsigned int flags,
unsigned int isu_size,
unsigned int irq_count,
@ -377,7 +377,7 @@ extern struct mpic *mpic_alloc(struct device_node *node,
* @phys_addr: physical address of the ISU
*/
extern void mpic_assign_isu(struct mpic *mpic, unsigned int isu_num,
unsigned long phys_addr);
phys_addr_t phys_addr);
/* Set default sense codes
*