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[RAPIDIO] Add RapidIO multi mport support

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The original RapidIO driver suppose there is only one mpc85xx RIO controller
in system.  So, some data structures are defined as mpc85xx_rio global, such
as 'regs_win', 'dbell_ring', 'msg_tx_ring'.  Now, I changed them to mport's
private members.  And you can define multi RIO OF-nodes in dts file for multi
RapidIO controller in one processor, such as PCI/PCI-Ex host controllers in
Freescale's silicon.  And the mport operation function declaration should be
changed to know which RapidIO controller is target.

Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Zhang Wei
2008-04-18 13:33:41 -07:00
committed by Paul Mackerras
parent 5a7b60ed88
commit ad1e9380b1
3 changed files with 237 additions and 184 deletions
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18
include/linux/rio.h
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@@ -163,6 +163,7 @@ struct rio_dbell {
* @id: Port ID, unique among all ports
* @index: Port index, unique among all port interfaces of the same type
* @name: Port name string
* @priv: Master port private data
*/
struct rio_mport {
struct list_head dbells; /* list of doorbell events */
@@ -178,6 +179,7 @@ struct rio_mport {
unsigned char index; /* port index, unique among all port
interfaces of the same type */
unsigned char name[40];
void *priv; /* Master port private data */
};
/**
@@ -229,13 +231,15 @@ struct rio_switch {
* @dsend: Callback to send a doorbell message.
*/
struct rio_ops {
int (*lcread) (int index, u32 offset, int len, u32 * data);
int (*lcwrite) (int index, u32 offset, int len, u32 data);
int (*cread) (int index, u16 destid, u8 hopcount, u32 offset, int len,
u32 * data);
int (*cwrite) (int index, u16 destid, u8 hopcount, u32 offset, int len,
u32 data);
int (*dsend) (int index, u16 destid, u16 data);
int (*lcread) (struct rio_mport *mport, int index, u32 offset, int len,
u32 *data);
int (*lcwrite) (struct rio_mport *mport, int index, u32 offset, int len,
u32 data);
int (*cread) (struct rio_mport *mport, int index, u16 destid,
u8 hopcount, u32 offset, int len, u32 *data);
int (*cwrite) (struct rio_mport *mport, int index, u16 destid,
u8 hopcount, u32 offset, int len, u32 data);
int (*dsend) (struct rio_mport *mport, int index, u16 destid, u16 data);
};
#define RIO_RESOURCE_MEM 0x00000100