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net: netcp: Enhance GBE driver to support 10G Ethernet
This patch enhances the NetCP gbe driver to support 10GbE subsystem available in Keystone NetCP. The 3-port 10GbE switch sub-module contains the following components:- 10GbE Switch, MDIO Module, 2 PCS-R Modules (10GBase-R) and 2 SGMII modules (10/100/1000Base-T). The GBE driver together with netcp core driver provides support for 10G Ethernet on Keystone SoCs. 10GbE hardware spec is available at http://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNumber=spruhj5&fileType=pdf Cc: David Miller <davem@davemloft.net> Cc: Rob Herring <robh+dt@kernel.org> Cc: Grant Likely <grant.likely@linaro.org> Cc: Santosh Shilimkar <santosh.shilimkar@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Signed-off-by: Wingman Kwok <w-kwok2@ti.com> Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Wingman Kwok
David S. Miller
parent
6f8d3f3338
commit
90cff9e2da
@ -13,4 +13,4 @@ ti_cpsw-y := cpsw_ale.o cpsw.o cpts.o
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obj-$(CONFIG_TI_KEYSTONE_NETCP) += keystone_netcp.o
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keystone_netcp-y := netcp_core.o netcp_ethss.o netcp_sgmii.o \
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cpsw_ale.o cpts.o
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netcp_xgbepcsr.o cpsw_ale.o cpts.o
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@ -1,5 +1,5 @@
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/*
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* Keystone GBE subsystem code
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* Keystone GBE and XGBE subsystem code
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*
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* Copyright (C) 2014 Texas Instruments Incorporated
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* Authors: Sandeep Nair <sandeep_n@ti.com>
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@ -53,6 +53,23 @@
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#define GBE13_NUM_ALE_PORTS (GBE13_NUM_SLAVES + 1)
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#define GBE13_NUM_ALE_ENTRIES 1024
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/* 10G Ethernet SS defines */
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#define XGBE_MODULE_NAME "netcp-xgbe"
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#define XGBE_SS_VERSION_10 0x4ee42100
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#define XGBE_SERDES_REG_INDEX 1
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#define XGBE10_SGMII_MODULE_OFFSET 0x100
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#define XGBE10_SWITCH_MODULE_OFFSET 0x1000
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#define XGBE10_HOST_PORT_OFFSET 0x1034
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#define XGBE10_SLAVE_PORT_OFFSET 0x1064
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#define XGBE10_EMAC_OFFSET 0x1400
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#define XGBE10_ALE_OFFSET 0x1700
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#define XGBE10_HW_STATS_OFFSET 0x1800
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#define XGBE10_HOST_PORT_NUM 0
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#define XGBE10_NUM_SLAVES 2
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#define XGBE10_NUM_ALE_PORTS (XGBE10_NUM_SLAVES + 1)
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#define XGBE10_NUM_ALE_ENTRIES 1024
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#define GBE_TIMER_INTERVAL (HZ / 2)
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/* Soft reset register values */
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@ -63,12 +80,15 @@
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#define MACSL_RX_ENABLE_CSF BIT(23)
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#define MACSL_ENABLE_EXT_CTL BIT(18)
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#define MACSL_XGMII_ENABLE BIT(13)
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#define MACSL_XGIG_MODE BIT(8)
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#define MACSL_GIG_MODE BIT(7)
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#define MACSL_GMII_ENABLE BIT(5)
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#define MACSL_FULLDUPLEX BIT(0)
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#define GBE_CTL_P0_ENABLE BIT(2)
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#define GBE_REG_VAL_STAT_ENABLE_ALL 0xff
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#define XGBE_REG_VAL_STAT_ENABLE_ALL 0xf
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#define GBE_STATS_CD_SEL BIT(28)
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#define GBE_PORT_MASK(x) (BIT(x) - 1)
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@ -78,11 +98,19 @@
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(MACSL_GIG_MODE | MACSL_GMII_ENABLE | \
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MACSL_ENABLE_EXT_CTL | MACSL_RX_ENABLE_CSF)
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#define GBE_DEF_10G_MAC_CONTROL \
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(MACSL_XGIG_MODE | MACSL_XGMII_ENABLE | \
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MACSL_ENABLE_EXT_CTL | MACSL_RX_ENABLE_CSF)
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#define GBE_STATSA_MODULE 0
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#define GBE_STATSB_MODULE 1
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#define GBE_STATSC_MODULE 2
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#define GBE_STATSD_MODULE 3
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#define XGBE_STATS0_MODULE 0
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#define XGBE_STATS1_MODULE 1
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#define XGBE_STATS2_MODULE 2
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#define MAX_SLAVES GBE13_NUM_SLAVES
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/* s: 0-based slave_port */
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#define SGMII_BASE(s) \
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@ -91,12 +119,144 @@
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#define GBE_TX_QUEUE 648
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#define GBE_TXHOOK_ORDER 0
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#define GBE_DEFAULT_ALE_AGEOUT 30
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#define SLAVE_LINK_IS_XGMII(s) ((s)->link_interface >= XGMII_LINK_MAC_PHY)
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#define NETCP_LINK_STATE_INVALID -1
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#define GBE_SET_REG_OFS(p, rb, rn) p->rb##_ofs.rn = \
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offsetof(struct gbe##_##rb, rn)
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#define XGBE_SET_REG_OFS(p, rb, rn) p->rb##_ofs.rn = \
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offsetof(struct xgbe##_##rb, rn)
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#define GBE_REG_ADDR(p, rb, rn) (p->rb + p->rb##_ofs.rn)
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struct xgbe_ss_regs {
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u32 id_ver;
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u32 synce_count;
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u32 synce_mux;
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u32 control;
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};
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struct xgbe_switch_regs {
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u32 id_ver;
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u32 control;
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u32 emcontrol;
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u32 stat_port_en;
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u32 ptype;
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u32 soft_idle;
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u32 thru_rate;
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u32 gap_thresh;
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u32 tx_start_wds;
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u32 flow_control;
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u32 cppi_thresh;
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};
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struct xgbe_port_regs {
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u32 blk_cnt;
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u32 port_vlan;
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u32 tx_pri_map;
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u32 sa_lo;
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u32 sa_hi;
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u32 ts_ctl;
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u32 ts_seq_ltype;
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u32 ts_vlan;
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u32 ts_ctl_ltype2;
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u32 ts_ctl2;
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u32 control;
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};
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struct xgbe_host_port_regs {
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u32 blk_cnt;
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u32 port_vlan;
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u32 tx_pri_map;
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u32 src_id;
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u32 rx_pri_map;
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u32 rx_maxlen;
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};
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struct xgbe_emac_regs {
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u32 id_ver;
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u32 mac_control;
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u32 mac_status;
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u32 soft_reset;
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u32 rx_maxlen;
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u32 __reserved_0;
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u32 rx_pause;
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u32 tx_pause;
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u32 em_control;
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u32 __reserved_1;
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u32 tx_gap;
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u32 rsvd[4];
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};
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struct xgbe_host_hw_stats {
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u32 rx_good_frames;
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u32 rx_broadcast_frames;
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u32 rx_multicast_frames;
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u32 __rsvd_0[3];
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u32 rx_oversized_frames;
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u32 __rsvd_1;
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u32 rx_undersized_frames;
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u32 __rsvd_2;
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u32 overrun_type4;
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u32 overrun_type5;
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u32 rx_bytes;
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u32 tx_good_frames;
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u32 tx_broadcast_frames;
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u32 tx_multicast_frames;
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u32 __rsvd_3[9];
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u32 tx_bytes;
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u32 tx_64byte_frames;
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u32 tx_65_to_127byte_frames;
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u32 tx_128_to_255byte_frames;
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u32 tx_256_to_511byte_frames;
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u32 tx_512_to_1023byte_frames;
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u32 tx_1024byte_frames;
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u32 net_bytes;
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u32 rx_sof_overruns;
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u32 rx_mof_overruns;
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u32 rx_dma_overruns;
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};
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struct xgbe_hw_stats {
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u32 rx_good_frames;
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u32 rx_broadcast_frames;
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u32 rx_multicast_frames;
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u32 rx_pause_frames;
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u32 rx_crc_errors;
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u32 rx_align_code_errors;
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u32 rx_oversized_frames;
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u32 rx_jabber_frames;
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u32 rx_undersized_frames;
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u32 rx_fragments;
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u32 overrun_type4;
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u32 overrun_type5;
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u32 rx_bytes;
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u32 tx_good_frames;
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u32 tx_broadcast_frames;
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u32 tx_multicast_frames;
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u32 tx_pause_frames;
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u32 tx_deferred_frames;
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u32 tx_collision_frames;
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u32 tx_single_coll_frames;
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u32 tx_mult_coll_frames;
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u32 tx_excessive_collisions;
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u32 tx_late_collisions;
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u32 tx_underrun;
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u32 tx_carrier_sense_errors;
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u32 tx_bytes;
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u32 tx_64byte_frames;
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u32 tx_65_to_127byte_frames;
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u32 tx_128_to_255byte_frames;
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u32 tx_256_to_511byte_frames;
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u32 tx_512_to_1023byte_frames;
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u32 tx_1024byte_frames;
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u32 net_bytes;
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u32 rx_sof_overruns;
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u32 rx_mof_overruns;
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u32 rx_dma_overruns;
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};
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#define XGBE10_NUM_STAT_ENTRIES (sizeof(struct xgbe_hw_stats)/sizeof(u32))
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struct gbe_ss_regs {
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u32 id_ver;
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u32 synce_count;
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@ -230,6 +390,7 @@ struct gbe_hw_stats {
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#define GBE13_NUM_HW_STAT_ENTRIES (sizeof(struct gbe_hw_stats)/sizeof(u32))
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#define GBE13_NUM_HW_STATS_MOD 2
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#define XGBE10_NUM_HW_STATS_MOD 3
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#define GBE_MAX_HW_STAT_MODS 3
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#define GBE_HW_STATS_REG_MAP_SZ 0x100
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@ -303,6 +464,7 @@ struct gbe_intf {
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};
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static struct netcp_module gbe_module;
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static struct netcp_module xgbe_module;
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/* Statistic management */
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struct netcp_ethtool_stat {
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@ -471,6 +633,118 @@ static const struct netcp_ethtool_stat gbe13_et_stats[] = {
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{GBE_STATSD_INFO(rx_dma_overruns)},
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};
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#define XGBE_STATS0_INFO(field) "GBE_0:"#field, XGBE_STATS0_MODULE, \
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FIELD_SIZEOF(struct xgbe_hw_stats, field), \
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offsetof(struct xgbe_hw_stats, field)
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#define XGBE_STATS1_INFO(field) "GBE_1:"#field, XGBE_STATS1_MODULE, \
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FIELD_SIZEOF(struct xgbe_hw_stats, field), \
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offsetof(struct xgbe_hw_stats, field)
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#define XGBE_STATS2_INFO(field) "GBE_2:"#field, XGBE_STATS2_MODULE, \
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FIELD_SIZEOF(struct xgbe_hw_stats, field), \
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offsetof(struct xgbe_hw_stats, field)
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static const struct netcp_ethtool_stat xgbe10_et_stats[] = {
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/* GBE module 0 */
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{XGBE_STATS0_INFO(rx_good_frames)},
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{XGBE_STATS0_INFO(rx_broadcast_frames)},
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{XGBE_STATS0_INFO(rx_multicast_frames)},
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{XGBE_STATS0_INFO(rx_oversized_frames)},
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{XGBE_STATS0_INFO(rx_undersized_frames)},
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{XGBE_STATS0_INFO(overrun_type4)},
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{XGBE_STATS0_INFO(overrun_type5)},
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{XGBE_STATS0_INFO(rx_bytes)},
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{XGBE_STATS0_INFO(tx_good_frames)},
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{XGBE_STATS0_INFO(tx_broadcast_frames)},
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{XGBE_STATS0_INFO(tx_multicast_frames)},
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{XGBE_STATS0_INFO(tx_bytes)},
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{XGBE_STATS0_INFO(tx_64byte_frames)},
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{XGBE_STATS0_INFO(tx_65_to_127byte_frames)},
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{XGBE_STATS0_INFO(tx_128_to_255byte_frames)},
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{XGBE_STATS0_INFO(tx_256_to_511byte_frames)},
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{XGBE_STATS0_INFO(tx_512_to_1023byte_frames)},
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{XGBE_STATS0_INFO(tx_1024byte_frames)},
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{XGBE_STATS0_INFO(net_bytes)},
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{XGBE_STATS0_INFO(rx_sof_overruns)},
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{XGBE_STATS0_INFO(rx_mof_overruns)},
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{XGBE_STATS0_INFO(rx_dma_overruns)},
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/* XGBE module 1 */
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{XGBE_STATS1_INFO(rx_good_frames)},
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{XGBE_STATS1_INFO(rx_broadcast_frames)},
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{XGBE_STATS1_INFO(rx_multicast_frames)},
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{XGBE_STATS1_INFO(rx_pause_frames)},
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{XGBE_STATS1_INFO(rx_crc_errors)},
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{XGBE_STATS1_INFO(rx_align_code_errors)},
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{XGBE_STATS1_INFO(rx_oversized_frames)},
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{XGBE_STATS1_INFO(rx_jabber_frames)},
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{XGBE_STATS1_INFO(rx_undersized_frames)},
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{XGBE_STATS1_INFO(rx_fragments)},
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{XGBE_STATS1_INFO(overrun_type4)},
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{XGBE_STATS1_INFO(overrun_type5)},
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{XGBE_STATS1_INFO(rx_bytes)},
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{XGBE_STATS1_INFO(tx_good_frames)},
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{XGBE_STATS1_INFO(tx_broadcast_frames)},
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{XGBE_STATS1_INFO(tx_multicast_frames)},
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{XGBE_STATS1_INFO(tx_pause_frames)},
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{XGBE_STATS1_INFO(tx_deferred_frames)},
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{XGBE_STATS1_INFO(tx_collision_frames)},
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{XGBE_STATS1_INFO(tx_single_coll_frames)},
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{XGBE_STATS1_INFO(tx_mult_coll_frames)},
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{XGBE_STATS1_INFO(tx_excessive_collisions)},
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{XGBE_STATS1_INFO(tx_late_collisions)},
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{XGBE_STATS1_INFO(tx_underrun)},
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{XGBE_STATS1_INFO(tx_carrier_sense_errors)},
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{XGBE_STATS1_INFO(tx_bytes)},
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{XGBE_STATS1_INFO(tx_64byte_frames)},
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{XGBE_STATS1_INFO(tx_65_to_127byte_frames)},
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{XGBE_STATS1_INFO(tx_128_to_255byte_frames)},
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{XGBE_STATS1_INFO(tx_256_to_511byte_frames)},
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{XGBE_STATS1_INFO(tx_512_to_1023byte_frames)},
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{XGBE_STATS1_INFO(tx_1024byte_frames)},
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{XGBE_STATS1_INFO(net_bytes)},
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{XGBE_STATS1_INFO(rx_sof_overruns)},
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{XGBE_STATS1_INFO(rx_mof_overruns)},
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{XGBE_STATS1_INFO(rx_dma_overruns)},
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/* XGBE module 2 */
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{XGBE_STATS2_INFO(rx_good_frames)},
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{XGBE_STATS2_INFO(rx_broadcast_frames)},
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{XGBE_STATS2_INFO(rx_multicast_frames)},
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{XGBE_STATS2_INFO(rx_pause_frames)},
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{XGBE_STATS2_INFO(rx_crc_errors)},
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{XGBE_STATS2_INFO(rx_align_code_errors)},
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{XGBE_STATS2_INFO(rx_oversized_frames)},
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{XGBE_STATS2_INFO(rx_jabber_frames)},
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{XGBE_STATS2_INFO(rx_undersized_frames)},
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{XGBE_STATS2_INFO(rx_fragments)},
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{XGBE_STATS2_INFO(overrun_type4)},
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{XGBE_STATS2_INFO(overrun_type5)},
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{XGBE_STATS2_INFO(rx_bytes)},
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{XGBE_STATS2_INFO(tx_good_frames)},
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{XGBE_STATS2_INFO(tx_broadcast_frames)},
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{XGBE_STATS2_INFO(tx_multicast_frames)},
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{XGBE_STATS2_INFO(tx_pause_frames)},
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{XGBE_STATS2_INFO(tx_deferred_frames)},
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{XGBE_STATS2_INFO(tx_collision_frames)},
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{XGBE_STATS2_INFO(tx_single_coll_frames)},
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{XGBE_STATS2_INFO(tx_mult_coll_frames)},
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{XGBE_STATS2_INFO(tx_excessive_collisions)},
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{XGBE_STATS2_INFO(tx_late_collisions)},
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{XGBE_STATS2_INFO(tx_underrun)},
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{XGBE_STATS2_INFO(tx_carrier_sense_errors)},
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{XGBE_STATS2_INFO(tx_bytes)},
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{XGBE_STATS2_INFO(tx_64byte_frames)},
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{XGBE_STATS2_INFO(tx_65_to_127byte_frames)},
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{XGBE_STATS2_INFO(tx_128_to_255byte_frames)},
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{XGBE_STATS2_INFO(tx_256_to_511byte_frames)},
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{XGBE_STATS2_INFO(tx_512_to_1023byte_frames)},
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{XGBE_STATS2_INFO(tx_1024byte_frames)},
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{XGBE_STATS2_INFO(net_bytes)},
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{XGBE_STATS2_INFO(rx_sof_overruns)},
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{XGBE_STATS2_INFO(rx_mof_overruns)},
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{XGBE_STATS2_INFO(rx_dma_overruns)},
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};
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#define for_each_intf(i, priv) \
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list_for_each_entry((i), &(priv)->gbe_intf_head, gbe_intf_list)
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@ -631,7 +905,10 @@ static void keystone_get_ethtool_stats(struct net_device *ndev,
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gbe_dev = gbe_intf->gbe_dev;
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spin_lock_bh(&gbe_dev->hw_stats_lock);
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gbe_update_stats_ver14(gbe_dev, data);
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if (gbe_dev->ss_version == GBE_SS_VERSION_14)
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gbe_update_stats_ver14(gbe_dev, data);
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else
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gbe_update_stats(gbe_dev, data);
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spin_unlock_bh(&gbe_dev->hw_stats_lock);
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}
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|
||||
@ -742,8 +1019,13 @@ static void netcp_ethss_link_state_action(struct gbe_priv *gbe_dev,
|
||||
|
||||
if (up) {
|
||||
mac_control = slave->mac_control;
|
||||
if (phy && (phy->speed == SPEED_1000))
|
||||
if (phy && (phy->speed == SPEED_1000)) {
|
||||
mac_control |= MACSL_GIG_MODE;
|
||||
mac_control &= ~MACSL_XGIG_MODE;
|
||||
} else if (phy && (phy->speed == SPEED_10000)) {
|
||||
mac_control |= MACSL_XGIG_MODE;
|
||||
mac_control &= ~MACSL_GIG_MODE;
|
||||
}
|
||||
|
||||
writel(mac_control, GBE_REG_ADDR(slave, emac_regs,
|
||||
mac_control));
|
||||
@ -783,7 +1065,9 @@ static void netcp_ethss_update_link_state(struct gbe_priv *gbe_dev,
|
||||
if (!slave->open)
|
||||
return;
|
||||
|
||||
sgmii_link_state = netcp_sgmii_get_port_link(SGMII_BASE(sp), sp);
|
||||
if (!SLAVE_LINK_IS_XGMII(slave))
|
||||
sgmii_link_state = netcp_sgmii_get_port_link(SGMII_BASE(sp),
|
||||
sp);
|
||||
phy_link_state = gbe_phy_link_status(slave);
|
||||
link_state = phy_link_state & sgmii_link_state;
|
||||
|
||||
@ -792,6 +1076,19 @@ static void netcp_ethss_update_link_state(struct gbe_priv *gbe_dev,
|
||||
link_state);
|
||||
}
|
||||
|
||||
static void xgbe_adjust_link(struct net_device *ndev)
|
||||
{
|
||||
struct netcp_intf *netcp = netdev_priv(ndev);
|
||||
struct gbe_intf *gbe_intf;
|
||||
|
||||
gbe_intf = netcp_module_get_intf_data(&xgbe_module, netcp);
|
||||
if (!gbe_intf)
|
||||
return;
|
||||
|
||||
netcp_ethss_update_link_state(gbe_intf->gbe_dev, gbe_intf->slave,
|
||||
ndev);
|
||||
}
|
||||
|
||||
static void gbe_adjust_link(struct net_device *ndev)
|
||||
{
|
||||
struct netcp_intf *netcp = netdev_priv(ndev);
|
||||
@ -839,9 +1136,19 @@ static int gbe_port_reset(struct gbe_slave *slave)
|
||||
static void gbe_port_config(struct gbe_priv *gbe_dev, struct gbe_slave *slave,
|
||||
int max_rx_len)
|
||||
{
|
||||
u32 xgmii_mode;
|
||||
|
||||
if (max_rx_len > NETCP_MAX_FRAME_SIZE)
|
||||
max_rx_len = NETCP_MAX_FRAME_SIZE;
|
||||
|
||||
/* Enable correct MII mode at SS level */
|
||||
if ((gbe_dev->ss_version == XGBE_SS_VERSION_10) &&
|
||||
(slave->link_interface >= XGMII_LINK_MAC_PHY)) {
|
||||
xgmii_mode = readl(GBE_REG_ADDR(gbe_dev, ss_regs, control));
|
||||
xgmii_mode |= (1 << slave->slave_num);
|
||||
writel(xgmii_mode, GBE_REG_ADDR(gbe_dev, ss_regs, control));
|
||||
}
|
||||
|
||||
writel(max_rx_len, GBE_REG_ADDR(slave, emac_regs, rx_maxlen));
|
||||
writel(slave->mac_control, GBE_REG_ADDR(slave, emac_regs, mac_control));
|
||||
}
|
||||
@ -874,9 +1181,11 @@ static void gbe_sgmii_config(struct gbe_priv *priv, struct gbe_slave *slave)
|
||||
if ((priv->ss_version == GBE_SS_VERSION_14) && (slave->slave_num >= 2))
|
||||
sgmii_port_regs = priv->sgmii_port34_regs;
|
||||
|
||||
netcp_sgmii_reset(sgmii_port_regs, slave->slave_num);
|
||||
netcp_sgmii_config(sgmii_port_regs, slave->slave_num,
|
||||
slave->link_interface);
|
||||
if (!SLAVE_LINK_IS_XGMII(slave)) {
|
||||
netcp_sgmii_reset(sgmii_port_regs, slave->slave_num);
|
||||
netcp_sgmii_config(sgmii_port_regs, slave->slave_num,
|
||||
slave->link_interface);
|
||||
}
|
||||
}
|
||||
|
||||
static int gbe_slave_open(struct gbe_intf *gbe_intf)
|
||||
@ -909,6 +1218,9 @@ static int gbe_slave_open(struct gbe_intf *gbe_intf)
|
||||
}
|
||||
|
||||
if (has_phy) {
|
||||
if (priv->ss_version == XGBE_SS_VERSION_10)
|
||||
hndlr = xgbe_adjust_link;
|
||||
|
||||
slave->phy = of_phy_connect(gbe_intf->ndev,
|
||||
slave->phy_node,
|
||||
hndlr, 0,
|
||||
@ -1233,7 +1545,10 @@ static int init_slave(struct gbe_priv *gbe_dev, struct gbe_slave *slave,
|
||||
slave->phy_node = of_parse_phandle(node, "phy-handle", 0);
|
||||
slave->port_num = gbe_get_slave_port(gbe_dev, slave->slave_num);
|
||||
|
||||
slave->mac_control = GBE_DEF_1G_MAC_CONTROL;
|
||||
if (slave->link_interface >= XGMII_LINK_MAC_PHY)
|
||||
slave->mac_control = GBE_DEF_10G_MAC_CONTROL;
|
||||
else
|
||||
slave->mac_control = GBE_DEF_1G_MAC_CONTROL;
|
||||
|
||||
/* Emac regs memmap are contiguous but port regs are not */
|
||||
port_reg_num = slave->slave_num;
|
||||
@ -1244,6 +1559,8 @@ static int init_slave(struct gbe_priv *gbe_dev, struct gbe_slave *slave,
|
||||
} else {
|
||||
port_reg_ofs = GBE13_SLAVE_PORT_OFFSET;
|
||||
}
|
||||
} else if (gbe_dev->ss_version == XGBE_SS_VERSION_10) {
|
||||
port_reg_ofs = XGBE10_SLAVE_PORT_OFFSET;
|
||||
} else {
|
||||
dev_err(gbe_dev->dev, "unknown ethss(0x%x)\n",
|
||||
gbe_dev->ss_version);
|
||||
@ -1252,6 +1569,8 @@ static int init_slave(struct gbe_priv *gbe_dev, struct gbe_slave *slave,
|
||||
|
||||
if (gbe_dev->ss_version == GBE_SS_VERSION_14)
|
||||
emac_reg_ofs = GBE13_EMAC_OFFSET;
|
||||
else if (gbe_dev->ss_version == XGBE_SS_VERSION_10)
|
||||
emac_reg_ofs = XGBE10_EMAC_OFFSET;
|
||||
|
||||
slave->port_regs = gbe_dev->ss_regs + port_reg_ofs +
|
||||
(0x30 * port_reg_num);
|
||||
@ -1275,10 +1594,22 @@ static int init_slave(struct gbe_priv *gbe_dev, struct gbe_slave *slave,
|
||||
GBE_SET_REG_OFS(slave, emac_regs, soft_reset);
|
||||
GBE_SET_REG_OFS(slave, emac_regs, rx_maxlen);
|
||||
|
||||
} else {
|
||||
dev_err(gbe_dev->dev, "unknown ethss(0x%x)\n",
|
||||
gbe_dev->ss_version);
|
||||
return -EINVAL;
|
||||
} else if (gbe_dev->ss_version == XGBE_SS_VERSION_10) {
|
||||
/* Initialize slave port register offsets */
|
||||
XGBE_SET_REG_OFS(slave, port_regs, port_vlan);
|
||||
XGBE_SET_REG_OFS(slave, port_regs, tx_pri_map);
|
||||
XGBE_SET_REG_OFS(slave, port_regs, sa_lo);
|
||||
XGBE_SET_REG_OFS(slave, port_regs, sa_hi);
|
||||
XGBE_SET_REG_OFS(slave, port_regs, ts_ctl);
|
||||
XGBE_SET_REG_OFS(slave, port_regs, ts_seq_ltype);
|
||||
XGBE_SET_REG_OFS(slave, port_regs, ts_vlan);
|
||||
XGBE_SET_REG_OFS(slave, port_regs, ts_ctl_ltype2);
|
||||
XGBE_SET_REG_OFS(slave, port_regs, ts_ctl2);
|
||||
|
||||
/* Initialize EMAC register offsets */
|
||||
XGBE_SET_REG_OFS(slave, emac_regs, mac_control);
|
||||
XGBE_SET_REG_OFS(slave, emac_regs, soft_reset);
|
||||
XGBE_SET_REG_OFS(slave, emac_regs, rx_maxlen);
|
||||
}
|
||||
|
||||
atomic_set(&slave->link_state, NETCP_LINK_STATE_INVALID);
|
||||
@ -1317,7 +1648,8 @@ static void init_secondary_ports(struct gbe_priv *gbe_dev,
|
||||
gbe_port_config(gbe_dev, slave, gbe_dev->rx_packet_max);
|
||||
list_add_tail(&slave->slave_list, &gbe_dev->secondary_slaves);
|
||||
gbe_dev->num_slaves++;
|
||||
if (slave->link_interface == SGMII_LINK_MAC_PHY)
|
||||
if ((slave->link_interface == SGMII_LINK_MAC_PHY) ||
|
||||
(slave->link_interface == XGMII_LINK_MAC_PHY))
|
||||
mac_phy_link = true;
|
||||
|
||||
slave->open = true;
|
||||
@ -1347,7 +1679,8 @@ static void init_secondary_ports(struct gbe_priv *gbe_dev,
|
||||
}
|
||||
|
||||
for_each_sec_slave(slave, gbe_dev) {
|
||||
if (slave->link_interface != SGMII_LINK_MAC_PHY)
|
||||
if ((slave->link_interface != SGMII_LINK_MAC_PHY) &&
|
||||
(slave->link_interface != XGMII_LINK_MAC_PHY))
|
||||
continue;
|
||||
slave->phy =
|
||||
of_phy_connect(gbe_dev->dummy_ndev,
|
||||
@ -1383,6 +1716,85 @@ static void free_secondary_ports(struct gbe_priv *gbe_dev)
|
||||
free_netdev(gbe_dev->dummy_ndev);
|
||||
}
|
||||
|
||||
static int set_xgbe_ethss10_priv(struct gbe_priv *gbe_dev,
|
||||
struct device_node *node)
|
||||
{
|
||||
struct resource res;
|
||||
void __iomem *regs;
|
||||
int ret, i;
|
||||
|
||||
ret = of_address_to_resource(node, 0, &res);
|
||||
if (ret) {
|
||||
dev_err(gbe_dev->dev, "Can't translate of node(%s) address for xgbe subsystem regs\n",
|
||||
node->name);
|
||||
return ret;
|
||||
}
|
||||
|
||||
regs = devm_ioremap_resource(gbe_dev->dev, &res);
|
||||
if (IS_ERR(regs)) {
|
||||
dev_err(gbe_dev->dev, "Failed to map xgbe register base\n");
|
||||
return PTR_ERR(regs);
|
||||
}
|
||||
gbe_dev->ss_regs = regs;
|
||||
|
||||
ret = of_address_to_resource(node, XGBE_SERDES_REG_INDEX, &res);
|
||||
if (ret) {
|
||||
dev_err(gbe_dev->dev, "Can't translate of node(%s) address for xgbe serdes regs\n",
|
||||
node->name);
|
||||
return ret;
|
||||
}
|
||||
|
||||
regs = devm_ioremap_resource(gbe_dev->dev, &res);
|
||||
if (IS_ERR(regs)) {
|
||||
dev_err(gbe_dev->dev, "Failed to map xgbe serdes register base\n");
|
||||
return PTR_ERR(regs);
|
||||
}
|
||||
gbe_dev->xgbe_serdes_regs = regs;
|
||||
|
||||
gbe_dev->hw_stats = devm_kzalloc(gbe_dev->dev,
|
||||
XGBE10_NUM_STAT_ENTRIES *
|
||||
(XGBE10_NUM_SLAVES + 1) * sizeof(u64),
|
||||
GFP_KERNEL);
|
||||
if (!gbe_dev->hw_stats) {
|
||||
dev_err(gbe_dev->dev, "hw_stats memory allocation failed\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
gbe_dev->ss_version = XGBE_SS_VERSION_10;
|
||||
gbe_dev->sgmii_port_regs = gbe_dev->ss_regs +
|
||||
XGBE10_SGMII_MODULE_OFFSET;
|
||||
gbe_dev->switch_regs = gbe_dev->ss_regs + XGBE10_SWITCH_MODULE_OFFSET;
|
||||
gbe_dev->host_port_regs = gbe_dev->ss_regs + XGBE10_HOST_PORT_OFFSET;
|
||||
|
||||
for (i = 0; i < XGBE10_NUM_HW_STATS_MOD; i++)
|
||||
gbe_dev->hw_stats_regs[i] = gbe_dev->ss_regs +
|
||||
XGBE10_HW_STATS_OFFSET + (GBE_HW_STATS_REG_MAP_SZ * i);
|
||||
|
||||
gbe_dev->ale_reg = gbe_dev->ss_regs + XGBE10_ALE_OFFSET;
|
||||
gbe_dev->ale_ports = XGBE10_NUM_ALE_PORTS;
|
||||
gbe_dev->host_port = XGBE10_HOST_PORT_NUM;
|
||||
gbe_dev->ale_entries = XGBE10_NUM_ALE_ENTRIES;
|
||||
gbe_dev->et_stats = xgbe10_et_stats;
|
||||
gbe_dev->num_et_stats = ARRAY_SIZE(xgbe10_et_stats);
|
||||
|
||||
/* Subsystem registers */
|
||||
XGBE_SET_REG_OFS(gbe_dev, ss_regs, id_ver);
|
||||
XGBE_SET_REG_OFS(gbe_dev, ss_regs, control);
|
||||
|
||||
/* Switch module registers */
|
||||
XGBE_SET_REG_OFS(gbe_dev, switch_regs, id_ver);
|
||||
XGBE_SET_REG_OFS(gbe_dev, switch_regs, control);
|
||||
XGBE_SET_REG_OFS(gbe_dev, switch_regs, ptype);
|
||||
XGBE_SET_REG_OFS(gbe_dev, switch_regs, stat_port_en);
|
||||
XGBE_SET_REG_OFS(gbe_dev, switch_regs, flow_control);
|
||||
|
||||
/* Host port registers */
|
||||
XGBE_SET_REG_OFS(gbe_dev, host_port_regs, port_vlan);
|
||||
XGBE_SET_REG_OFS(gbe_dev, host_port_regs, tx_pri_map);
|
||||
XGBE_SET_REG_OFS(gbe_dev, host_port_regs, rx_maxlen);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int get_gbe_resource_version(struct gbe_priv *gbe_dev,
|
||||
struct device_node *node)
|
||||
{
|
||||
@ -1513,6 +1925,14 @@ static int gbe_probe(struct netcp_device *netcp_device, struct device *dev,
|
||||
ret = set_gbe_ethss14_priv(gbe_dev, node);
|
||||
if (ret)
|
||||
goto quit;
|
||||
} else if (!strcmp(node->name, "xgbe")) {
|
||||
ret = set_xgbe_ethss10_priv(gbe_dev, node);
|
||||
if (ret)
|
||||
goto quit;
|
||||
ret = netcp_xgbe_serdes_init(gbe_dev->xgbe_serdes_regs,
|
||||
gbe_dev->ss_regs);
|
||||
if (ret)
|
||||
goto quit;
|
||||
} else {
|
||||
dev_err(dev, "unknown GBE node(%s)\n", node->name);
|
||||
ret = -ENODEV;
|
||||
@ -1695,6 +2115,23 @@ static struct netcp_module gbe_module = {
|
||||
.ioctl = gbe_ioctl,
|
||||
};
|
||||
|
||||
static struct netcp_module xgbe_module = {
|
||||
.name = XGBE_MODULE_NAME,
|
||||
.owner = THIS_MODULE,
|
||||
.primary = true,
|
||||
.probe = gbe_probe,
|
||||
.open = gbe_open,
|
||||
.close = gbe_close,
|
||||
.remove = gbe_remove,
|
||||
.attach = gbe_attach,
|
||||
.release = gbe_release,
|
||||
.add_addr = gbe_add_addr,
|
||||
.del_addr = gbe_del_addr,
|
||||
.add_vid = gbe_add_vid,
|
||||
.del_vid = gbe_del_vid,
|
||||
.ioctl = gbe_ioctl,
|
||||
};
|
||||
|
||||
static int __init keystone_gbe_init(void)
|
||||
{
|
||||
int ret;
|
||||
@ -1703,6 +2140,10 @@ static int __init keystone_gbe_init(void)
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = netcp_register_module(&xgbe_module);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return 0;
|
||||
}
|
||||
module_init(keystone_gbe_init);
|
||||
@ -1710,5 +2151,6 @@ module_init(keystone_gbe_init);
|
||||
static void __exit keystone_gbe_exit(void)
|
||||
{
|
||||
netcp_unregister_module(&gbe_module);
|
||||
netcp_unregister_module(&xgbe_module);
|
||||
}
|
||||
module_exit(keystone_gbe_exit);
|
||||
|
||||
501
drivers/net/ethernet/ti/netcp_xgbepcsr.c
Normal file
501
drivers/net/ethernet/ti/netcp_xgbepcsr.c
Normal file
@ -0,0 +1,501 @@
|
||||
/*
|
||||
* XGE PCSR module initialisation
|
||||
*
|
||||
* Copyright (C) 2014 Texas Instruments Incorporated
|
||||
* Authors: Sandeep Nair <sandeep_n@ti.com>
|
||||
* WingMan Kwok <w-kwok2@ti.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 version 2.
|
||||
*
|
||||
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
|
||||
* kind, whether express or implied; without even the implied warranty
|
||||
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*/
|
||||
#include "netcp.h"
|
||||
|
||||
/* XGBE registers */
|
||||
#define XGBE_CTRL_OFFSET 0x0c
|
||||
#define XGBE_SGMII_1_OFFSET 0x0114
|
||||
#define XGBE_SGMII_2_OFFSET 0x0214
|
||||
|
||||
/* PCS-R registers */
|
||||
#define PCSR_CPU_CTRL_OFFSET 0x1fd0
|
||||
#define POR_EN BIT(29)
|
||||
|
||||
#define reg_rmw(addr, value, mask) \
|
||||
writel(((readl(addr) & (~(mask))) | \
|
||||
(value & (mask))), (addr))
|
||||
|
||||
/* bit mask of width w at offset s */
|
||||
#define MASK_WID_SH(w, s) (((1 << w) - 1) << s)
|
||||
|
||||
/* shift value v to offset s */
|
||||
#define VAL_SH(v, s) (v << s)
|
||||
|
||||
#define PHY_A(serdes) 0
|
||||
|
||||
struct serdes_cfg {
|
||||
u32 ofs;
|
||||
u32 val;
|
||||
u32 mask;
|
||||
};
|
||||
|
||||
static struct serdes_cfg cfg_phyb_1p25g_156p25mhz_cmu0[] = {
|
||||
{0x0000, 0x00800002, 0x00ff00ff},
|
||||
{0x0014, 0x00003838, 0x0000ffff},
|
||||
{0x0060, 0x1c44e438, 0xffffffff},
|
||||
{0x0064, 0x00c18400, 0x00ffffff},
|
||||
{0x0068, 0x17078200, 0xffffff00},
|
||||
{0x006c, 0x00000014, 0x000000ff},
|
||||
{0x0078, 0x0000c000, 0x0000ff00},
|
||||
{0x0000, 0x00000003, 0x000000ff},
|
||||
};
|
||||
|
||||
static struct serdes_cfg cfg_phyb_10p3125g_156p25mhz_cmu1[] = {
|
||||
{0x0c00, 0x00030002, 0x00ff00ff},
|
||||
{0x0c14, 0x00005252, 0x0000ffff},
|
||||
{0x0c28, 0x80000000, 0xff000000},
|
||||
{0x0c2c, 0x000000f6, 0x000000ff},
|
||||
{0x0c3c, 0x04000405, 0xff00ffff},
|
||||
{0x0c40, 0xc0800000, 0xffff0000},
|
||||
{0x0c44, 0x5a202062, 0xffffffff},
|
||||
{0x0c48, 0x40040424, 0xffffffff},
|
||||
{0x0c4c, 0x00004002, 0x0000ffff},
|
||||
{0x0c50, 0x19001c00, 0xff00ff00},
|
||||
{0x0c54, 0x00002100, 0x0000ff00},
|
||||
{0x0c58, 0x00000060, 0x000000ff},
|
||||
{0x0c60, 0x80131e7c, 0xffffffff},
|
||||
{0x0c64, 0x8400cb02, 0xff00ffff},
|
||||
{0x0c68, 0x17078200, 0xffffff00},
|
||||
{0x0c6c, 0x00000016, 0x000000ff},
|
||||
{0x0c74, 0x00000400, 0x0000ff00},
|
||||
{0x0c78, 0x0000c000, 0x0000ff00},
|
||||
{0x0c00, 0x00000003, 0x000000ff},
|
||||
};
|
||||
|
||||
static struct serdes_cfg cfg_phyb_10p3125g_16bit_lane[] = {
|
||||
{0x0204, 0x00000080, 0x000000ff},
|
||||
{0x0208, 0x0000920d, 0x0000ffff},
|
||||
{0x0204, 0xfc000000, 0xff000000},
|
||||
{0x0208, 0x00009104, 0x0000ffff},
|
||||
{0x0210, 0x1a000000, 0xff000000},
|
||||
{0x0214, 0x00006b58, 0x00ffffff},
|
||||
{0x0218, 0x75800084, 0xffff00ff},
|
||||
{0x022c, 0x00300000, 0x00ff0000},
|
||||
{0x0230, 0x00003800, 0x0000ff00},
|
||||
{0x024c, 0x008f0000, 0x00ff0000},
|
||||
{0x0250, 0x30000000, 0xff000000},
|
||||
{0x0260, 0x00000002, 0x000000ff},
|
||||
{0x0264, 0x00000057, 0x000000ff},
|
||||
{0x0268, 0x00575700, 0x00ffff00},
|
||||
{0x0278, 0xff000000, 0xff000000},
|
||||
{0x0280, 0x00500050, 0x00ff00ff},
|
||||
{0x0284, 0x00001f15, 0x0000ffff},
|
||||
{0x028c, 0x00006f00, 0x0000ff00},
|
||||
{0x0294, 0x00000000, 0xffffff00},
|
||||
{0x0298, 0x00002640, 0xff00ffff},
|
||||
{0x029c, 0x00000003, 0x000000ff},
|
||||
{0x02a4, 0x00000f13, 0x0000ffff},
|
||||
{0x02a8, 0x0001b600, 0x00ffff00},
|
||||
{0x0380, 0x00000030, 0x000000ff},
|
||||
{0x03c0, 0x00000200, 0x0000ff00},
|
||||
{0x03cc, 0x00000018, 0x000000ff},
|
||||
{0x03cc, 0x00000000, 0x000000ff},
|
||||
};
|
||||
|
||||
static struct serdes_cfg cfg_phyb_10p3125g_comlane[] = {
|
||||
{0x0a00, 0x00000800, 0x0000ff00},
|
||||
{0x0a84, 0x00000000, 0x000000ff},
|
||||
{0x0a8c, 0x00130000, 0x00ff0000},
|
||||
{0x0a90, 0x77a00000, 0xffff0000},
|
||||
{0x0a94, 0x00007777, 0x0000ffff},
|
||||
{0x0b08, 0x000f0000, 0xffff0000},
|
||||
{0x0b0c, 0x000f0000, 0x00ffffff},
|
||||
{0x0b10, 0xbe000000, 0xff000000},
|
||||
{0x0b14, 0x000000ff, 0x000000ff},
|
||||
{0x0b18, 0x00000014, 0x000000ff},
|
||||
{0x0b5c, 0x981b0000, 0xffff0000},
|
||||
{0x0b64, 0x00001100, 0x0000ff00},
|
||||
{0x0b78, 0x00000c00, 0x0000ff00},
|
||||
{0x0abc, 0xff000000, 0xff000000},
|
||||
{0x0ac0, 0x0000008b, 0x000000ff},
|
||||
};
|
||||
|
||||
static struct serdes_cfg cfg_cm_c1_c2[] = {
|
||||
{0x0208, 0x00000000, 0x00000f00},
|
||||
{0x0208, 0x00000000, 0x0000001f},
|
||||
{0x0204, 0x00000000, 0x00040000},
|
||||
{0x0208, 0x000000a0, 0x000000e0},
|
||||
};
|
||||
|
||||
static void netcp_xgbe_serdes_cmu_init(void __iomem *serdes_regs)
|
||||
{
|
||||
int i;
|
||||
|
||||
/* cmu0 setup */
|
||||
for (i = 0; i < ARRAY_SIZE(cfg_phyb_1p25g_156p25mhz_cmu0); i++) {
|
||||
reg_rmw(serdes_regs + cfg_phyb_1p25g_156p25mhz_cmu0[i].ofs,
|
||||
cfg_phyb_1p25g_156p25mhz_cmu0[i].val,
|
||||
cfg_phyb_1p25g_156p25mhz_cmu0[i].mask);
|
||||
}
|
||||
|
||||
/* cmu1 setup */
|
||||
for (i = 0; i < ARRAY_SIZE(cfg_phyb_10p3125g_156p25mhz_cmu1); i++) {
|
||||
reg_rmw(serdes_regs + cfg_phyb_10p3125g_156p25mhz_cmu1[i].ofs,
|
||||
cfg_phyb_10p3125g_156p25mhz_cmu1[i].val,
|
||||
cfg_phyb_10p3125g_156p25mhz_cmu1[i].mask);
|
||||
}
|
||||
}
|
||||
|
||||
/* lane is 0 based */
|
||||
static void netcp_xgbe_serdes_lane_config(
|
||||
void __iomem *serdes_regs, int lane)
|
||||
{
|
||||
int i;
|
||||
|
||||
/* lane setup */
|
||||
for (i = 0; i < ARRAY_SIZE(cfg_phyb_10p3125g_16bit_lane); i++) {
|
||||
reg_rmw(serdes_regs +
|
||||
cfg_phyb_10p3125g_16bit_lane[i].ofs +
|
||||
(0x200 * lane),
|
||||
cfg_phyb_10p3125g_16bit_lane[i].val,
|
||||
cfg_phyb_10p3125g_16bit_lane[i].mask);
|
||||
}
|
||||
|
||||
/* disable auto negotiation*/
|
||||
reg_rmw(serdes_regs + (0x200 * lane) + 0x0380,
|
||||
0x00000000, 0x00000010);
|
||||
|
||||
/* disable link training */
|
||||
reg_rmw(serdes_regs + (0x200 * lane) + 0x03c0,
|
||||
0x00000000, 0x00000200);
|
||||
}
|
||||
|
||||
static void netcp_xgbe_serdes_com_enable(void __iomem *serdes_regs)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(cfg_phyb_10p3125g_comlane); i++) {
|
||||
reg_rmw(serdes_regs + cfg_phyb_10p3125g_comlane[i].ofs,
|
||||
cfg_phyb_10p3125g_comlane[i].val,
|
||||
cfg_phyb_10p3125g_comlane[i].mask);
|
||||
}
|
||||
}
|
||||
|
||||
static void netcp_xgbe_serdes_lane_enable(
|
||||
void __iomem *serdes_regs, int lane)
|
||||
{
|
||||
/* Set Lane Control Rate */
|
||||
writel(0xe0e9e038, serdes_regs + 0x1fe0 + (4 * lane));
|
||||
}
|
||||
|
||||
static void netcp_xgbe_serdes_phyb_rst_clr(void __iomem *serdes_regs)
|
||||
{
|
||||
reg_rmw(serdes_regs + 0x0a00, 0x0000001f, 0x000000ff);
|
||||
}
|
||||
|
||||
static void netcp_xgbe_serdes_pll_disable(void __iomem *serdes_regs)
|
||||
{
|
||||
writel(0x88000000, serdes_regs + 0x1ff4);
|
||||
}
|
||||
|
||||
static void netcp_xgbe_serdes_pll_enable(void __iomem *serdes_regs)
|
||||
{
|
||||
netcp_xgbe_serdes_phyb_rst_clr(serdes_regs);
|
||||
writel(0xee000000, serdes_regs + 0x1ff4);
|
||||
}
|
||||
|
||||
static int netcp_xgbe_wait_pll_locked(void __iomem *sw_regs)
|
||||
{
|
||||
unsigned long timeout;
|
||||
int ret = 0;
|
||||
u32 val_1, val_0;
|
||||
|
||||
timeout = jiffies + msecs_to_jiffies(500);
|
||||
do {
|
||||
val_0 = (readl(sw_regs + XGBE_SGMII_1_OFFSET) & BIT(4));
|
||||
val_1 = (readl(sw_regs + XGBE_SGMII_2_OFFSET) & BIT(4));
|
||||
|
||||
if (val_1 && val_0)
|
||||
return 0;
|
||||
|
||||
if (time_after(jiffies, timeout)) {
|
||||
ret = -ETIMEDOUT;
|
||||
break;
|
||||
}
|
||||
|
||||
cpu_relax();
|
||||
} while (true);
|
||||
|
||||
pr_err("XGBE serdes not locked: time out.\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void netcp_xgbe_serdes_enable_xgmii_port(void __iomem *sw_regs)
|
||||
{
|
||||
writel(0x03, sw_regs + XGBE_CTRL_OFFSET);
|
||||
}
|
||||
|
||||
static u32 netcp_xgbe_serdes_read_tbus_val(void __iomem *serdes_regs)
|
||||
{
|
||||
u32 tmp;
|
||||
|
||||
if (PHY_A(serdes_regs)) {
|
||||
tmp = (readl(serdes_regs + 0x0ec) >> 24) & 0x0ff;
|
||||
tmp |= ((readl(serdes_regs + 0x0fc) >> 16) & 0x00f00);
|
||||
} else {
|
||||
tmp = (readl(serdes_regs + 0x0f8) >> 16) & 0x0fff;
|
||||
}
|
||||
|
||||
return tmp;
|
||||
}
|
||||
|
||||
static void netcp_xgbe_serdes_write_tbus_addr(void __iomem *serdes_regs,
|
||||
int select, int ofs)
|
||||
{
|
||||
if (PHY_A(serdes_regs)) {
|
||||
reg_rmw(serdes_regs + 0x0008, ((select << 5) + ofs) << 24,
|
||||
~0x00ffffff);
|
||||
return;
|
||||
}
|
||||
|
||||
/* For 2 lane Phy-B, lane0 is actually lane1 */
|
||||
switch (select) {
|
||||
case 1:
|
||||
select = 2;
|
||||
break;
|
||||
case 2:
|
||||
select = 3;
|
||||
break;
|
||||
default:
|
||||
return;
|
||||
}
|
||||
|
||||
reg_rmw(serdes_regs + 0x00fc, ((select << 8) + ofs) << 16, ~0xf800ffff);
|
||||
}
|
||||
|
||||
static u32 netcp_xgbe_serdes_read_select_tbus(void __iomem *serdes_regs,
|
||||
int select, int ofs)
|
||||
{
|
||||
/* Set tbus address */
|
||||
netcp_xgbe_serdes_write_tbus_addr(serdes_regs, select, ofs);
|
||||
/* Get TBUS Value */
|
||||
return netcp_xgbe_serdes_read_tbus_val(serdes_regs);
|
||||
}
|
||||
|
||||
static void netcp_xgbe_serdes_reset_cdr(void __iomem *serdes_regs,
|
||||
void __iomem *sig_detect_reg, int lane)
|
||||
{
|
||||
u32 tmp, dlpf, tbus;
|
||||
|
||||
/*Get the DLPF values */
|
||||
tmp = netcp_xgbe_serdes_read_select_tbus(
|
||||
serdes_regs, lane + 1, 5);
|
||||
|
||||
dlpf = tmp >> 2;
|
||||
|
||||
if (dlpf < 400 || dlpf > 700) {
|
||||
reg_rmw(sig_detect_reg, VAL_SH(2, 1), MASK_WID_SH(2, 1));
|
||||
mdelay(1);
|
||||
reg_rmw(sig_detect_reg, VAL_SH(0, 1), MASK_WID_SH(2, 1));
|
||||
} else {
|
||||
tbus = netcp_xgbe_serdes_read_select_tbus(serdes_regs, lane +
|
||||
1, 0xe);
|
||||
|
||||
pr_debug("XGBE: CDR centered, DLPF: %4d,%d,%d.\n",
|
||||
tmp >> 2, tmp & 3, (tbus >> 2) & 3);
|
||||
}
|
||||
}
|
||||
|
||||
/* Call every 100 ms */
|
||||
static int netcp_xgbe_check_link_status(void __iomem *serdes_regs,
|
||||
void __iomem *sw_regs, u32 lanes,
|
||||
u32 *current_state, u32 *lane_down)
|
||||
{
|
||||
void __iomem *pcsr_base = sw_regs + 0x0600;
|
||||
void __iomem *sig_detect_reg;
|
||||
u32 pcsr_rx_stat, blk_lock, blk_errs;
|
||||
int loss, i, status = 1;
|
||||
|
||||
for (i = 0; i < lanes; i++) {
|
||||
/* Get the Loss bit */
|
||||
loss = readl(serdes_regs + 0x1fc0 + 0x20 + (i * 0x04)) & 0x1;
|
||||
|
||||
/* Get Block Errors and Block Lock bits */
|
||||
pcsr_rx_stat = readl(pcsr_base + 0x0c + (i * 0x80));
|
||||
blk_lock = (pcsr_rx_stat >> 30) & 0x1;
|
||||
blk_errs = (pcsr_rx_stat >> 16) & 0x0ff;
|
||||
|
||||
/* Get Signal Detect Overlay Address */
|
||||
sig_detect_reg = serdes_regs + (i * 0x200) + 0x200 + 0x04;
|
||||
|
||||
/* If Block errors maxed out, attempt recovery! */
|
||||
if (blk_errs == 0x0ff)
|
||||
blk_lock = 0;
|
||||
|
||||
switch (current_state[i]) {
|
||||
case 0:
|
||||
/* if good link lock the signal detect ON! */
|
||||
if (!loss && blk_lock) {
|
||||
pr_debug("XGBE PCSR Linked Lane: %d\n", i);
|
||||
reg_rmw(sig_detect_reg, VAL_SH(3, 1),
|
||||
MASK_WID_SH(2, 1));
|
||||
current_state[i] = 1;
|
||||
} else if (!blk_lock) {
|
||||
/* if no lock, then reset CDR */
|
||||
pr_debug("XGBE PCSR Recover Lane: %d\n", i);
|
||||
netcp_xgbe_serdes_reset_cdr(serdes_regs,
|
||||
sig_detect_reg, i);
|
||||
}
|
||||
break;
|
||||
|
||||
case 1:
|
||||
if (!blk_lock) {
|
||||
/* Link Lost? */
|
||||
lane_down[i] = 1;
|
||||
current_state[i] = 2;
|
||||
}
|
||||
break;
|
||||
|
||||
case 2:
|
||||
if (blk_lock)
|
||||
/* Nope just noise */
|
||||
current_state[i] = 1;
|
||||
else {
|
||||
/* Lost the block lock, reset CDR if it is
|
||||
* not centered and go back to sync state
|
||||
*/
|
||||
netcp_xgbe_serdes_reset_cdr(serdes_regs,
|
||||
sig_detect_reg, i);
|
||||
current_state[i] = 0;
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
pr_err("XGBE: unknown current_state[%d] %d\n",
|
||||
i, current_state[i]);
|
||||
break;
|
||||
}
|
||||
|
||||
if (blk_errs > 0) {
|
||||
/* Reset the Error counts! */
|
||||
reg_rmw(pcsr_base + 0x08 + (i * 0x80), VAL_SH(0x19, 0),
|
||||
MASK_WID_SH(8, 0));
|
||||
|
||||
reg_rmw(pcsr_base + 0x08 + (i * 0x80), VAL_SH(0x00, 0),
|
||||
MASK_WID_SH(8, 0));
|
||||
}
|
||||
|
||||
status &= (current_state[i] == 1);
|
||||
}
|
||||
|
||||
return status;
|
||||
}
|
||||
|
||||
static int netcp_xgbe_serdes_check_lane(void __iomem *serdes_regs,
|
||||
void __iomem *sw_regs)
|
||||
{
|
||||
u32 current_state[2] = {0, 0};
|
||||
int retries = 0, link_up;
|
||||
u32 lane_down[2];
|
||||
|
||||
do {
|
||||
lane_down[0] = 0;
|
||||
lane_down[1] = 0;
|
||||
|
||||
link_up = netcp_xgbe_check_link_status(serdes_regs, sw_regs, 2,
|
||||
current_state,
|
||||
lane_down);
|
||||
|
||||
/* if we did not get link up then wait 100ms before calling
|
||||
* it again
|
||||
*/
|
||||
if (link_up)
|
||||
break;
|
||||
|
||||
if (lane_down[0])
|
||||
pr_debug("XGBE: detected link down on lane 0\n");
|
||||
|
||||
if (lane_down[1])
|
||||
pr_debug("XGBE: detected link down on lane 1\n");
|
||||
|
||||
if (++retries > 1) {
|
||||
pr_debug("XGBE: timeout waiting for serdes link up\n");
|
||||
return -ETIMEDOUT;
|
||||
}
|
||||
mdelay(100);
|
||||
} while (!link_up);
|
||||
|
||||
pr_debug("XGBE: PCSR link is up\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void netcp_xgbe_serdes_setup_cm_c1_c2(void __iomem *serdes_regs,
|
||||
int lane, int cm, int c1, int c2)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(cfg_cm_c1_c2); i++) {
|
||||
reg_rmw(serdes_regs + cfg_cm_c1_c2[i].ofs + (0x200 * lane),
|
||||
cfg_cm_c1_c2[i].val,
|
||||
cfg_cm_c1_c2[i].mask);
|
||||
}
|
||||
}
|
||||
|
||||
static void netcp_xgbe_reset_serdes(void __iomem *serdes_regs)
|
||||
{
|
||||
/* Toggle the POR_EN bit in CONFIG.CPU_CTRL */
|
||||
/* enable POR_EN bit */
|
||||
reg_rmw(serdes_regs + PCSR_CPU_CTRL_OFFSET, POR_EN, POR_EN);
|
||||
usleep_range(10, 100);
|
||||
|
||||
/* disable POR_EN bit */
|
||||
reg_rmw(serdes_regs + PCSR_CPU_CTRL_OFFSET, 0, POR_EN);
|
||||
usleep_range(10, 100);
|
||||
}
|
||||
|
||||
static int netcp_xgbe_serdes_config(void __iomem *serdes_regs,
|
||||
void __iomem *sw_regs)
|
||||
{
|
||||
u32 ret, i;
|
||||
|
||||
netcp_xgbe_serdes_pll_disable(serdes_regs);
|
||||
netcp_xgbe_serdes_cmu_init(serdes_regs);
|
||||
|
||||
for (i = 0; i < 2; i++)
|
||||
netcp_xgbe_serdes_lane_config(serdes_regs, i);
|
||||
|
||||
netcp_xgbe_serdes_com_enable(serdes_regs);
|
||||
/* This is EVM + RTM-BOC specific */
|
||||
for (i = 0; i < 2; i++)
|
||||
netcp_xgbe_serdes_setup_cm_c1_c2(serdes_regs, i, 0, 0, 5);
|
||||
|
||||
netcp_xgbe_serdes_pll_enable(serdes_regs);
|
||||
for (i = 0; i < 2; i++)
|
||||
netcp_xgbe_serdes_lane_enable(serdes_regs, i);
|
||||
|
||||
/* SB PLL Status Poll */
|
||||
ret = netcp_xgbe_wait_pll_locked(sw_regs);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
netcp_xgbe_serdes_enable_xgmii_port(sw_regs);
|
||||
netcp_xgbe_serdes_check_lane(serdes_regs, sw_regs);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int netcp_xgbe_serdes_init(void __iomem *serdes_regs, void __iomem *xgbe_regs)
|
||||
{
|
||||
u32 val;
|
||||
|
||||
/* read COMLANE bits 4:0 */
|
||||
val = readl(serdes_regs + 0xa00);
|
||||
if (val & 0x1f) {
|
||||
pr_debug("XGBE: serdes already in operation - reset\n");
|
||||
netcp_xgbe_reset_serdes(serdes_regs);
|
||||
}
|
||||
return netcp_xgbe_serdes_config(serdes_regs, xgbe_regs);
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user