rapidio: add IDT CPS/TSI switches
Extentions to RapidIO switch support:
1. modify switch route operation declarations to allow using single
switch-specific file for family of switches that share the same route
table operations.
2. add standard route table operations for switches that that support
route table manipulation registers as defined in the Rev.1.3 of RapidIO
specification.
3. add clear-route-table operation for switches
4. add CPSxx and TSIxxx families of RapidIO switches
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Tested-by: Thomas Moll <thomas.moll@sysgo.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Li Yang <leoli@freescale.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c
index 6395c78..67a3792 100644
--- a/drivers/rapidio/rio.c
+++ b/drivers/rapidio/rio.c
@@ -451,6 +451,110 @@
return rio_get_asm(vid, did, RIO_ANY_ID, RIO_ANY_ID, from);
}
+/**
+ * rio_std_route_add_entry - Add switch route table entry using standard
+ * registers defined in RIO specification rev.1.3
+ * @mport: Master port to issue transaction
+ * @destid: Destination ID of the device
+ * @hopcount: Number of switch hops to the device
+ * @table: routing table ID (global or port-specific)
+ * @route_destid: destID entry in the RT
+ * @route_port: destination port for specified destID
+ */
+int rio_std_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
+ u16 table, u16 route_destid, u8 route_port)
+{
+ if (table == RIO_GLOBAL_TABLE) {
+ rio_mport_write_config_32(mport, destid, hopcount,
+ RIO_STD_RTE_CONF_DESTID_SEL_CSR,
+ (u32)route_destid);
+ rio_mport_write_config_32(mport, destid, hopcount,
+ RIO_STD_RTE_CONF_PORT_SEL_CSR,
+ (u32)route_port);
+ }
+ udelay(10);
+ return 0;
+}
+
+/**
+ * rio_std_route_get_entry - Read switch route table entry (port number)
+ * assosiated with specified destID using standard registers defined in RIO
+ * specification rev.1.3
+ * @mport: Master port to issue transaction
+ * @destid: Destination ID of the device
+ * @hopcount: Number of switch hops to the device
+ * @table: routing table ID (global or port-specific)
+ * @route_destid: destID entry in the RT
+ * @route_port: returned destination port for specified destID
+ */
+int rio_std_route_get_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
+ u16 table, u16 route_destid, u8 *route_port)
+{
+ u32 result;
+
+ if (table == RIO_GLOBAL_TABLE) {
+ rio_mport_write_config_32(mport, destid, hopcount,
+ RIO_STD_RTE_CONF_DESTID_SEL_CSR, route_destid);
+ rio_mport_read_config_32(mport, destid, hopcount,
+ RIO_STD_RTE_CONF_PORT_SEL_CSR, &result);
+
+ *route_port = (u8)result;
+ }
+
+ return 0;
+}
+
+/**
+ * rio_std_route_clr_table - Clear swotch route table using standard registers
+ * defined in RIO specification rev.1.3.
+ * @mport: Master port to issue transaction
+ * @local: Indicate a local master port or remote device access
+ * @destid: Destination ID of the device
+ * @hopcount: Number of switch hops to the device
+ * @table: routing table ID (global or port-specific)
+ */
+int rio_std_route_clr_table(struct rio_mport *mport, u16 destid, u8 hopcount,
+ u16 table)
+{
+ u32 max_destid = 0xff;
+ u32 i, pef, id_inc = 1, ext_cfg = 0;
+ u32 port_sel = RIO_INVALID_ROUTE;
+
+ if (table == RIO_GLOBAL_TABLE) {
+ rio_mport_read_config_32(mport, destid, hopcount,
+ RIO_PEF_CAR, &pef);
+
+ if (mport->sys_size) {
+ rio_mport_read_config_32(mport, destid, hopcount,
+ RIO_SWITCH_RT_LIMIT,
+ &max_destid);
+ max_destid &= RIO_RT_MAX_DESTID;
+ }
+
+ if (pef & RIO_PEF_EXT_RT) {
+ ext_cfg = 0x80000000;
+ id_inc = 4;
+ port_sel = (RIO_INVALID_ROUTE << 24) |
+ (RIO_INVALID_ROUTE << 16) |
+ (RIO_INVALID_ROUTE << 8) |
+ RIO_INVALID_ROUTE;
+ }
+
+ for (i = 0; i <= max_destid;) {
+ rio_mport_write_config_32(mport, destid, hopcount,
+ RIO_STD_RTE_CONF_DESTID_SEL_CSR,
+ ext_cfg | i);
+ rio_mport_write_config_32(mport, destid, hopcount,
+ RIO_STD_RTE_CONF_PORT_SEL_CSR,
+ port_sel);
+ i += id_inc;
+ }
+ }
+
+ udelay(10);
+ return 0;
+}
+
static void rio_fixup_device(struct rio_dev *dev)
{
}