zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/drivers/rapidio/switches/idtcps.c b/ap/os/linux/linux-3.4.x/drivers/rapidio/switches/idtcps.c
new file mode 100644
index 0000000..d06ee2d
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/rapidio/switches/idtcps.c
@@ -0,0 +1,149 @@
+/*
+ * IDT CPS RapidIO switches support
+ *
+ * Copyright 2009-2010 Integrated Device Technology, Inc.
+ * Alexandre Bounine <alexandre.bounine@idt.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/rio.h>
+#include <linux/rio_drv.h>
+#include <linux/rio_ids.h>
+#include "../rio.h"
+
+#define CPS_DEFAULT_ROUTE 0xde
+#define CPS_NO_ROUTE 0xdf
+
+#define IDTCPS_RIO_DOMAIN 0xf20020
+
+static int
+idtcps_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
+ u16 table, u16 route_destid, u8 route_port)
+{
+ u32 result;
+
+ if (route_port == RIO_INVALID_ROUTE)
+ route_port = CPS_DEFAULT_ROUTE;
+
+ 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);
+
+ result = (0xffffff00 & result) | (u32)route_port;
+ rio_mport_write_config_32(mport, destid, hopcount,
+ RIO_STD_RTE_CONF_PORT_SEL_CSR, result);
+ }
+
+ return 0;
+}
+
+static int
+idtcps_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);
+
+ if (CPS_DEFAULT_ROUTE == (u8)result ||
+ CPS_NO_ROUTE == (u8)result)
+ *route_port = RIO_INVALID_ROUTE;
+ else
+ *route_port = (u8)result;
+ }
+
+ return 0;
+}
+
+static int
+idtcps_route_clr_table(struct rio_mport *mport, u16 destid, u8 hopcount,
+ u16 table)
+{
+ u32 i;
+
+ if (table == RIO_GLOBAL_TABLE) {
+ for (i = 0x80000000; i <= 0x800000ff;) {
+ rio_mport_write_config_32(mport, destid, hopcount,
+ RIO_STD_RTE_CONF_DESTID_SEL_CSR, i);
+ rio_mport_write_config_32(mport, destid, hopcount,
+ RIO_STD_RTE_CONF_PORT_SEL_CSR,
+ (CPS_DEFAULT_ROUTE << 24) |
+ (CPS_DEFAULT_ROUTE << 16) |
+ (CPS_DEFAULT_ROUTE << 8) | CPS_DEFAULT_ROUTE);
+ i += 4;
+ }
+ }
+
+ return 0;
+}
+
+static int
+idtcps_set_domain(struct rio_mport *mport, u16 destid, u8 hopcount,
+ u8 sw_domain)
+{
+ /*
+ * Switch domain configuration operates only at global level
+ */
+ rio_mport_write_config_32(mport, destid, hopcount,
+ IDTCPS_RIO_DOMAIN, (u32)sw_domain);
+ return 0;
+}
+
+static int
+idtcps_get_domain(struct rio_mport *mport, u16 destid, u8 hopcount,
+ u8 *sw_domain)
+{
+ u32 regval;
+
+ /*
+ * Switch domain configuration operates only at global level
+ */
+ rio_mport_read_config_32(mport, destid, hopcount,
+ IDTCPS_RIO_DOMAIN, ®val);
+
+ *sw_domain = (u8)(regval & 0xff);
+
+ return 0;
+}
+
+static int idtcps_switch_init(struct rio_dev *rdev, int do_enum)
+{
+ pr_debug("RIO: %s for %s\n", __func__, rio_name(rdev));
+ rdev->rswitch->add_entry = idtcps_route_add_entry;
+ rdev->rswitch->get_entry = idtcps_route_get_entry;
+ rdev->rswitch->clr_table = idtcps_route_clr_table;
+ rdev->rswitch->set_domain = idtcps_set_domain;
+ rdev->rswitch->get_domain = idtcps_get_domain;
+ rdev->rswitch->em_init = NULL;
+ rdev->rswitch->em_handle = NULL;
+
+ if (do_enum) {
+ /* set TVAL = ~50us */
+ rio_write_config_32(rdev,
+ rdev->phys_efptr + RIO_PORT_LINKTO_CTL_CSR, 0x8e << 8);
+ /* Ensure that default routing is disabled on startup */
+ rio_write_config_32(rdev,
+ RIO_STD_RTE_DEFAULT_PORT, CPS_NO_ROUTE);
+ }
+
+ return 0;
+}
+
+DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS6Q, idtcps_switch_init);
+DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS8, idtcps_switch_init);
+DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS10Q, idtcps_switch_init);
+DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS12, idtcps_switch_init);
+DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS16, idtcps_switch_init);
+DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDT70K200, idtcps_switch_init);