forked from Minki/linux
rapidio: add support for IDT CPS Gen2 switches
Add the RIO switch driver and definitions for IDT CPS-1848 and CPS-1616 Gen2 devices. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: 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> Cc: Micha Nelissen <micha@neli.hopto.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alexandre Bounine
Linus Torvalds
parent
e274e0ed0a
commit
a3725c45c1
@ -20,6 +20,13 @@ config RAPIDIO_TSI568
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---help---
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Includes support for IDT Tsi568 serial RapidIO switch.
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config RAPIDIO_CPS_GEN2
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bool "IDT CPS Gen.2 SRIO switch support"
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depends on RAPIDIO
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default n
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---help---
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Includes support for ITD CPS Gen.2 serial RapidIO switches.
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config RAPIDIO_TSI500
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bool "Tsi500 Parallel RapidIO switch support"
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depends on RAPIDIO
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@ -6,6 +6,7 @@ obj-$(CONFIG_RAPIDIO_TSI57X) += tsi57x.o
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obj-$(CONFIG_RAPIDIO_CPS_XX) += idtcps.o
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obj-$(CONFIG_RAPIDIO_TSI568) += tsi568.o
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obj-$(CONFIG_RAPIDIO_TSI500) += tsi500.o
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obj-$(CONFIG_RAPIDIO_CPS_GEN2) += idt_gen2.o
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ifeq ($(CONFIG_RAPIDIO_DEBUG),y)
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EXTRA_CFLAGS += -DDEBUG
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447
drivers/rapidio/switches/idt_gen2.c
Normal file
447
drivers/rapidio/switches/idt_gen2.c
Normal file
@ -0,0 +1,447 @@
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/*
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* IDT CPS Gen.2 Serial RapidIO switch family support
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*
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* Copyright 2010 Integrated Device Technology, Inc.
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* Alexandre Bounine <alexandre.bounine@idt.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include <linux/rio.h>
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#include <linux/rio_drv.h>
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#include <linux/rio_ids.h>
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#include <linux/delay.h>
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#include "../rio.h"
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#define LOCAL_RTE_CONF_DESTID_SEL 0x010070
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#define LOCAL_RTE_CONF_DESTID_SEL_PSEL 0x0000001f
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#define IDT_LT_ERR_REPORT_EN 0x03100c
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#define IDT_PORT_ERR_REPORT_EN(n) (0x031044 + (n)*0x40)
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#define IDT_PORT_ERR_REPORT_EN_BC 0x03ff04
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#define IDT_PORT_ISERR_REPORT_EN(n) (0x03104C + (n)*0x40)
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#define IDT_PORT_ISERR_REPORT_EN_BC 0x03ff0c
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#define IDT_PORT_INIT_TX_ACQUIRED 0x00000020
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#define IDT_LANE_ERR_REPORT_EN(n) (0x038010 + (n)*0x100)
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#define IDT_LANE_ERR_REPORT_EN_BC 0x03ff10
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#define IDT_DEV_CTRL_1 0xf2000c
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#define IDT_DEV_CTRL_1_GENPW 0x02000000
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#define IDT_DEV_CTRL_1_PRSTBEH 0x00000001
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#define IDT_CFGBLK_ERR_CAPTURE_EN 0x020008
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#define IDT_CFGBLK_ERR_REPORT 0xf20014
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#define IDT_CFGBLK_ERR_REPORT_GENPW 0x00000002
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#define IDT_AUX_PORT_ERR_CAP_EN 0x020000
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#define IDT_AUX_ERR_REPORT_EN 0xf20018
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#define IDT_AUX_PORT_ERR_LOG_I2C 0x00000002
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#define IDT_AUX_PORT_ERR_LOG_JTAG 0x00000001
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#define IDT_ISLTL_ADDRESS_CAP 0x021014
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#define IDT_RIO_DOMAIN 0xf20020
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#define IDT_RIO_DOMAIN_MASK 0x000000ff
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#define IDT_PW_INFO_CSR 0xf20024
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#define IDT_SOFT_RESET 0xf20040
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#define IDT_SOFT_RESET_REQ 0x00030097
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#define IDT_I2C_MCTRL 0xf20050
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#define IDT_I2C_MCTRL_GENPW 0x04000000
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#define IDT_JTAG_CTRL 0xf2005c
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#define IDT_JTAG_CTRL_GENPW 0x00000002
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#define IDT_LANE_CTRL(n) (0xff8000 + (n)*0x100)
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#define IDT_LANE_CTRL_BC 0xffff00
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#define IDT_LANE_CTRL_GENPW 0x00200000
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#define IDT_LANE_DFE_1_BC 0xffff18
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#define IDT_LANE_DFE_2_BC 0xffff1c
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#define IDT_PORT_OPS(n) (0xf40004 + (n)*0x100)
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#define IDT_PORT_OPS_GENPW 0x08000000
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#define IDT_PORT_OPS_PL_ELOG 0x00000040
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#define IDT_PORT_OPS_LL_ELOG 0x00000020
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#define IDT_PORT_OPS_LT_ELOG 0x00000010
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#define IDT_PORT_OPS_BC 0xf4ff04
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#define IDT_PORT_ISERR_DET(n) (0xf40008 + (n)*0x100)
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#define IDT_ERR_CAP 0xfd0000
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#define IDT_ERR_CAP_LOG_OVERWR 0x00000004
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#define IDT_ERR_RD 0xfd0004
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#define IDT_DEFAULT_ROUTE 0xde
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#define IDT_NO_ROUTE 0xdf
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static int
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idtg2_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
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u16 table, u16 route_destid, u8 route_port)
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{
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/*
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* Select routing table to update
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*/
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if (table == RIO_GLOBAL_TABLE)
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table = 0;
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else
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table++;
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rio_mport_write_config_32(mport, destid, hopcount,
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LOCAL_RTE_CONF_DESTID_SEL, table);
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/*
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* Program destination port for the specified destID
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*/
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rio_mport_write_config_32(mport, destid, hopcount,
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RIO_STD_RTE_CONF_DESTID_SEL_CSR,
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(u32)route_destid);
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rio_mport_write_config_32(mport, destid, hopcount,
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RIO_STD_RTE_CONF_PORT_SEL_CSR,
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(u32)route_port);
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udelay(10);
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return 0;
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}
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static int
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idtg2_route_get_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
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u16 table, u16 route_destid, u8 *route_port)
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{
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u32 result;
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/*
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* Select routing table to read
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*/
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if (table == RIO_GLOBAL_TABLE)
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table = 0;
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else
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table++;
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rio_mport_write_config_32(mport, destid, hopcount,
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LOCAL_RTE_CONF_DESTID_SEL, table);
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rio_mport_write_config_32(mport, destid, hopcount,
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RIO_STD_RTE_CONF_DESTID_SEL_CSR,
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route_destid);
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rio_mport_read_config_32(mport, destid, hopcount,
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RIO_STD_RTE_CONF_PORT_SEL_CSR, &result);
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if (IDT_DEFAULT_ROUTE == (u8)result || IDT_NO_ROUTE == (u8)result)
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*route_port = RIO_INVALID_ROUTE;
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else
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*route_port = (u8)result;
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return 0;
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}
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static int
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idtg2_route_clr_table(struct rio_mport *mport, u16 destid, u8 hopcount,
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u16 table)
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{
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u32 i;
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/*
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* Select routing table to read
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*/
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if (table == RIO_GLOBAL_TABLE)
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table = 0;
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else
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table++;
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rio_mport_write_config_32(mport, destid, hopcount,
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LOCAL_RTE_CONF_DESTID_SEL, table);
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for (i = RIO_STD_RTE_CONF_EXTCFGEN;
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i <= (RIO_STD_RTE_CONF_EXTCFGEN | 0xff);) {
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rio_mport_write_config_32(mport, destid, hopcount,
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RIO_STD_RTE_CONF_DESTID_SEL_CSR, i);
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rio_mport_write_config_32(mport, destid, hopcount,
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RIO_STD_RTE_CONF_PORT_SEL_CSR,
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(IDT_DEFAULT_ROUTE << 24) | (IDT_DEFAULT_ROUTE << 16) |
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(IDT_DEFAULT_ROUTE << 8) | IDT_DEFAULT_ROUTE);
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i += 4;
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}
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return 0;
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}
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static int
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idtg2_set_domain(struct rio_mport *mport, u16 destid, u8 hopcount,
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u8 sw_domain)
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{
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/*
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* Switch domain configuration operates only at global level
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*/
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rio_mport_write_config_32(mport, destid, hopcount,
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IDT_RIO_DOMAIN, (u32)sw_domain);
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return 0;
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}
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static int
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idtg2_get_domain(struct rio_mport *mport, u16 destid, u8 hopcount,
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u8 *sw_domain)
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{
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u32 regval;
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/*
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* Switch domain configuration operates only at global level
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*/
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rio_mport_read_config_32(mport, destid, hopcount,
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IDT_RIO_DOMAIN, ®val);
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*sw_domain = (u8)(regval & 0xff);
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return 0;
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}
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static int
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idtg2_em_init(struct rio_dev *rdev)
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{
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struct rio_mport *mport = rdev->net->hport;
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u16 destid = rdev->rswitch->destid;
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u8 hopcount = rdev->rswitch->hopcount;
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u32 regval;
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int i, tmp;
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/*
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* This routine performs device-specific initialization only.
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* All standard EM configuration should be performed at upper level.
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*/
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pr_debug("RIO: %s [%d:%d]\n", __func__, destid, hopcount);
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/* Set Port-Write info CSR: PRIO=3 and CRF=1 */
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rio_mport_write_config_32(mport, destid, hopcount,
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IDT_PW_INFO_CSR, 0x0000e000);
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/*
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* Configure LT LAYER error reporting.
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*/
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/* Enable standard (RIO.p8) error reporting */
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rio_mport_write_config_32(mport, destid, hopcount,
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IDT_LT_ERR_REPORT_EN,
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REM_LTL_ERR_ILLTRAN | REM_LTL_ERR_UNSOLR |
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REM_LTL_ERR_UNSUPTR);
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/* Use Port-Writes for LT layer error reporting.
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* Enable per-port reset
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*/
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rio_mport_read_config_32(mport, destid, hopcount,
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IDT_DEV_CTRL_1, ®val);
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rio_mport_write_config_32(mport, destid, hopcount,
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IDT_DEV_CTRL_1,
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regval | IDT_DEV_CTRL_1_GENPW | IDT_DEV_CTRL_1_PRSTBEH);
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/*
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* Configure PORT error reporting.
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*/
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/* Report all RIO.p8 errors supported by device */
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rio_mport_write_config_32(mport, destid, hopcount,
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IDT_PORT_ERR_REPORT_EN_BC, 0x807e8037);
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/* Configure reporting of implementation specific errors/events */
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rio_mport_write_config_32(mport, destid, hopcount,
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IDT_PORT_ISERR_REPORT_EN_BC, IDT_PORT_INIT_TX_ACQUIRED);
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/* Use Port-Writes for port error reporting and enable error logging */
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tmp = RIO_GET_TOTAL_PORTS(rdev->swpinfo);
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for (i = 0; i < tmp; i++) {
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rio_mport_read_config_32(mport, destid, hopcount,
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IDT_PORT_OPS(i), ®val);
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rio_mport_write_config_32(mport, destid, hopcount,
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IDT_PORT_OPS(i), regval | IDT_PORT_OPS_GENPW |
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IDT_PORT_OPS_PL_ELOG |
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IDT_PORT_OPS_LL_ELOG |
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IDT_PORT_OPS_LT_ELOG);
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}
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/* Overwrite error log if full */
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rio_mport_write_config_32(mport, destid, hopcount,
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IDT_ERR_CAP, IDT_ERR_CAP_LOG_OVERWR);
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/*
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* Configure LANE error reporting.
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*/
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/* Disable line error reporting */
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rio_mport_write_config_32(mport, destid, hopcount,
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IDT_LANE_ERR_REPORT_EN_BC, 0);
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/* Use Port-Writes for lane error reporting (when enabled)
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* (do per-lane update because lanes may have different configuration)
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*/
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tmp = (rdev->did == RIO_DID_IDTCPS1848) ? 48 : 16;
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for (i = 0; i < tmp; i++) {
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rio_mport_read_config_32(mport, destid, hopcount,
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IDT_LANE_CTRL(i), ®val);
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rio_mport_write_config_32(mport, destid, hopcount,
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IDT_LANE_CTRL(i), regval | IDT_LANE_CTRL_GENPW);
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}
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/*
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* Configure AUX error reporting.
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*/
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/* Disable JTAG and I2C Error capture */
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rio_mport_write_config_32(mport, destid, hopcount,
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IDT_AUX_PORT_ERR_CAP_EN, 0);
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/* Disable JTAG and I2C Error reporting/logging */
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rio_mport_write_config_32(mport, destid, hopcount,
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IDT_AUX_ERR_REPORT_EN, 0);
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/* Disable Port-Write notification from JTAG */
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rio_mport_write_config_32(mport, destid, hopcount,
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IDT_JTAG_CTRL, 0);
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/* Disable Port-Write notification from I2C */
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rio_mport_read_config_32(mport, destid, hopcount,
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IDT_I2C_MCTRL, ®val);
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rio_mport_write_config_32(mport, destid, hopcount,
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IDT_I2C_MCTRL,
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regval & ~IDT_I2C_MCTRL_GENPW);
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/*
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* Configure CFG_BLK error reporting.
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*/
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/* Disable Configuration Block error capture */
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rio_mport_write_config_32(mport, destid, hopcount,
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IDT_CFGBLK_ERR_CAPTURE_EN, 0);
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/* Disable Port-Writes for Configuration Block error reporting */
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rio_mport_read_config_32(mport, destid, hopcount,
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IDT_CFGBLK_ERR_REPORT, ®val);
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rio_mport_write_config_32(mport, destid, hopcount,
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IDT_CFGBLK_ERR_REPORT,
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regval & ~IDT_CFGBLK_ERR_REPORT_GENPW);
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/* set TVAL = ~50us */
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rio_mport_write_config_32(mport, destid, hopcount,
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rdev->phys_efptr + RIO_PORT_LINKTO_CTL_CSR, 0x8e << 8);
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return 0;
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}
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static int
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idtg2_em_handler(struct rio_dev *rdev, u8 portnum)
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{
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struct rio_mport *mport = rdev->net->hport;
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u16 destid = rdev->rswitch->destid;
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u8 hopcount = rdev->rswitch->hopcount;
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u32 regval, em_perrdet, em_ltlerrdet;
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rio_mport_read_config_32(mport, destid, hopcount,
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rdev->em_efptr + RIO_EM_LTL_ERR_DETECT, &em_ltlerrdet);
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if (em_ltlerrdet) {
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/* Service Logical/Transport Layer Error(s) */
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if (em_ltlerrdet & REM_LTL_ERR_IMPSPEC) {
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/* Implementation specific error reported */
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rio_mport_read_config_32(mport, destid, hopcount,
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IDT_ISLTL_ADDRESS_CAP, ®val);
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pr_debug("RIO: %s Implementation Specific LTL errors" \
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" 0x%x @(0x%x)\n",
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rio_name(rdev), em_ltlerrdet, regval);
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/* Clear implementation specific address capture CSR */
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rio_mport_write_config_32(mport, destid, hopcount,
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IDT_ISLTL_ADDRESS_CAP, 0);
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}
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}
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rio_mport_read_config_32(mport, destid, hopcount,
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rdev->em_efptr + RIO_EM_PN_ERR_DETECT(portnum), &em_perrdet);
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if (em_perrdet) {
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/* Service Port-Level Error(s) */
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if (em_perrdet & REM_PED_IMPL_SPEC) {
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/* Implementation Specific port error reported */
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/* Get IS errors reported */
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rio_mport_read_config_32(mport, destid, hopcount,
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IDT_PORT_ISERR_DET(portnum), ®val);
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pr_debug("RIO: %s Implementation Specific Port" \
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" errors 0x%x\n", rio_name(rdev), regval);
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/* Clear all implementation specific events */
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rio_mport_write_config_32(mport, destid, hopcount,
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IDT_PORT_ISERR_DET(portnum), 0);
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}
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}
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return 0;
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}
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static ssize_t
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idtg2_show_errlog(struct device *dev, struct device_attribute *attr, char *buf)
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{
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struct rio_dev *rdev = to_rio_dev(dev);
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struct rio_mport *mport = rdev->net->hport;
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u16 destid = rdev->rswitch->destid;
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u8 hopcount = rdev->rswitch->hopcount;
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ssize_t len = 0;
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u32 regval;
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||||
|
||||
while (!rio_mport_read_config_32(mport, destid, hopcount,
|
||||
IDT_ERR_RD, ®val)) {
|
||||
if (!regval) /* 0 = end of log */
|
||||
break;
|
||||
len += snprintf(buf + len, PAGE_SIZE - len,
|
||||
"%08x\n", regval);
|
||||
if (len >= (PAGE_SIZE - 10))
|
||||
break;
|
||||
}
|
||||
|
||||
return len;
|
||||
}
|
||||
|
||||
static DEVICE_ATTR(errlog, S_IRUGO, idtg2_show_errlog, NULL);
|
||||
|
||||
static int idtg2_sysfs(struct rio_dev *rdev, int create)
|
||||
{
|
||||
struct device *dev = &rdev->dev;
|
||||
int err = 0;
|
||||
|
||||
if (create == RIO_SW_SYSFS_CREATE) {
|
||||
/* Initialize sysfs entries */
|
||||
err = device_create_file(dev, &dev_attr_errlog);
|
||||
if (err)
|
||||
dev_err(dev, "Unable create sysfs errlog file\n");
|
||||
} else
|
||||
device_remove_file(dev, &dev_attr_errlog);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static int idtg2_switch_init(struct rio_dev *rdev, int do_enum)
|
||||
{
|
||||
pr_debug("RIO: %s for %s\n", __func__, rio_name(rdev));
|
||||
rdev->rswitch->add_entry = idtg2_route_add_entry;
|
||||
rdev->rswitch->get_entry = idtg2_route_get_entry;
|
||||
rdev->rswitch->clr_table = idtg2_route_clr_table;
|
||||
rdev->rswitch->set_domain = idtg2_set_domain;
|
||||
rdev->rswitch->get_domain = idtg2_get_domain;
|
||||
rdev->rswitch->em_init = idtg2_em_init;
|
||||
rdev->rswitch->em_handle = idtg2_em_handler;
|
||||
rdev->rswitch->sw_sysfs = idtg2_sysfs;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS1848, idtg2_switch_init);
|
||||
DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS1616, idtg2_switch_init);
|
||||
@ -34,5 +34,7 @@
|
||||
#define RIO_DID_IDTCPS16 0x035b
|
||||
#define RIO_DID_IDTCPS6Q 0x035f
|
||||
#define RIO_DID_IDTCPS10Q 0x035e
|
||||
#define RIO_DID_IDTCPS1848 0x0374
|
||||
#define RIO_DID_IDTCPS1616 0x0379
|
||||
|
||||
#endif /* LINUX_RIO_IDS_H */
|
||||
|
||||
@ -161,6 +161,7 @@
|
||||
#define RIO_COMPONENT_TAG_CSR 0x6c /* [III] Component Tag CSR */
|
||||
|
||||
#define RIO_STD_RTE_CONF_DESTID_SEL_CSR 0x70
|
||||
#define RIO_STD_RTE_CONF_EXTCFGEN 0x80000000
|
||||
#define RIO_STD_RTE_CONF_PORT_SEL_CSR 0x74
|
||||
#define RIO_STD_RTE_DEFAULT_PORT 0x78
|
||||
|
||||
@ -265,6 +266,10 @@
|
||||
#define RIO_EM_EFB_HEADER 0x000 /* Error Management Extensions Block Header */
|
||||
#define RIO_EM_LTL_ERR_DETECT 0x008 /* Logical/Transport Layer Error Detect CSR */
|
||||
#define RIO_EM_LTL_ERR_EN 0x00c /* Logical/Transport Layer Error Enable CSR */
|
||||
#define REM_LTL_ERR_ILLTRAN 0x08000000 /* Illegal Transaction decode */
|
||||
#define REM_LTL_ERR_UNSOLR 0x00800000 /* Unsolicited Response */
|
||||
#define REM_LTL_ERR_UNSUPTR 0x00400000 /* Unsupported Transaction */
|
||||
#define REM_LTL_ERR_IMPSPEC 0x000000ff /* Implementation Specific */
|
||||
#define RIO_EM_LTL_HIADDR_CAP 0x010 /* Logical/Transport Layer High Address Capture CSR */
|
||||
#define RIO_EM_LTL_ADDR_CAP 0x014 /* Logical/Transport Layer Address Capture CSR */
|
||||
#define RIO_EM_LTL_DEVID_CAP 0x018 /* Logical/Transport Layer Device ID Capture CSR */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user