From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- drivers/phy/marvell/phy-mvebu-cp110-comphy.c | 1112 ++++++++++++++++++++++++++ 1 file changed, 1112 insertions(+) create mode 100644 drivers/phy/marvell/phy-mvebu-cp110-comphy.c (limited to 'drivers/phy/marvell/phy-mvebu-cp110-comphy.c') diff --git a/drivers/phy/marvell/phy-mvebu-cp110-comphy.c b/drivers/phy/marvell/phy-mvebu-cp110-comphy.c new file mode 100644 index 000000000..34672e868 --- /dev/null +++ b/drivers/phy/marvell/phy-mvebu-cp110-comphy.c @@ -0,0 +1,1112 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2017 Marvell + * + * Antoine Tenart + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* Relative to priv->base */ +#define MVEBU_COMPHY_SERDES_CFG0(n) (0x0 + (n) * 0x1000) +#define MVEBU_COMPHY_SERDES_CFG0_PU_PLL BIT(1) +#define MVEBU_COMPHY_SERDES_CFG0_GEN_RX(n) ((n) << 3) +#define MVEBU_COMPHY_SERDES_CFG0_GEN_TX(n) ((n) << 7) +#define MVEBU_COMPHY_SERDES_CFG0_PU_RX BIT(11) +#define MVEBU_COMPHY_SERDES_CFG0_PU_TX BIT(12) +#define MVEBU_COMPHY_SERDES_CFG0_HALF_BUS BIT(14) +#define MVEBU_COMPHY_SERDES_CFG0_RXAUI_MODE BIT(15) +#define MVEBU_COMPHY_SERDES_CFG1(n) (0x4 + (n) * 0x1000) +#define MVEBU_COMPHY_SERDES_CFG1_RESET BIT(3) +#define MVEBU_COMPHY_SERDES_CFG1_RX_INIT BIT(4) +#define MVEBU_COMPHY_SERDES_CFG1_CORE_RESET BIT(5) +#define MVEBU_COMPHY_SERDES_CFG1_RF_RESET BIT(6) +#define MVEBU_COMPHY_SERDES_CFG2(n) (0x8 + (n) * 0x1000) +#define MVEBU_COMPHY_SERDES_CFG2_DFE_EN BIT(4) +#define MVEBU_COMPHY_SERDES_STATUS0(n) (0x18 + (n) * 0x1000) +#define MVEBU_COMPHY_SERDES_STATUS0_TX_PLL_RDY BIT(2) +#define MVEBU_COMPHY_SERDES_STATUS0_RX_PLL_RDY BIT(3) +#define MVEBU_COMPHY_SERDES_STATUS0_RX_INIT BIT(4) +#define MVEBU_COMPHY_PWRPLL_CTRL(n) (0x804 + (n) * 0x1000) +#define MVEBU_COMPHY_PWRPLL_CTRL_RFREQ(n) ((n) << 0) +#define MVEBU_COMPHY_PWRPLL_PHY_MODE(n) ((n) << 5) +#define MVEBU_COMPHY_IMP_CAL(n) (0x80c + (n) * 0x1000) +#define MVEBU_COMPHY_IMP_CAL_TX_EXT(n) ((n) << 10) +#define MVEBU_COMPHY_IMP_CAL_TX_EXT_EN BIT(15) +#define MVEBU_COMPHY_DFE_RES(n) (0x81c + (n) * 0x1000) +#define MVEBU_COMPHY_DFE_RES_FORCE_GEN_TBL BIT(15) +#define MVEBU_COMPHY_COEF(n) (0x828 + (n) * 0x1000) +#define MVEBU_COMPHY_COEF_DFE_EN BIT(14) +#define MVEBU_COMPHY_COEF_DFE_CTRL BIT(15) +#define MVEBU_COMPHY_GEN1_S0(n) (0x834 + (n) * 0x1000) +#define MVEBU_COMPHY_GEN1_S0_TX_AMP(n) ((n) << 1) +#define MVEBU_COMPHY_GEN1_S0_TX_EMPH(n) ((n) << 7) +#define MVEBU_COMPHY_GEN1_S1(n) (0x838 + (n) * 0x1000) +#define MVEBU_COMPHY_GEN1_S1_RX_MUL_PI(n) ((n) << 0) +#define MVEBU_COMPHY_GEN1_S1_RX_MUL_PF(n) ((n) << 3) +#define MVEBU_COMPHY_GEN1_S1_RX_MUL_FI(n) ((n) << 6) +#define MVEBU_COMPHY_GEN1_S1_RX_MUL_FF(n) ((n) << 8) +#define MVEBU_COMPHY_GEN1_S1_RX_DFE_EN BIT(10) +#define MVEBU_COMPHY_GEN1_S1_RX_DIV(n) ((n) << 11) +#define MVEBU_COMPHY_GEN1_S2(n) (0x8f4 + (n) * 0x1000) +#define MVEBU_COMPHY_GEN1_S2_TX_EMPH(n) ((n) << 0) +#define MVEBU_COMPHY_GEN1_S2_TX_EMPH_EN BIT(4) +#define MVEBU_COMPHY_LOOPBACK(n) (0x88c + (n) * 0x1000) +#define MVEBU_COMPHY_LOOPBACK_DBUS_WIDTH(n) ((n) << 1) +#define MVEBU_COMPHY_VDD_CAL0(n) (0x908 + (n) * 0x1000) +#define MVEBU_COMPHY_VDD_CAL0_CONT_MODE BIT(15) +#define MVEBU_COMPHY_EXT_SELV(n) (0x914 + (n) * 0x1000) +#define MVEBU_COMPHY_EXT_SELV_RX_SAMPL(n) ((n) << 5) +#define MVEBU_COMPHY_MISC_CTRL0(n) (0x93c + (n) * 0x1000) +#define MVEBU_COMPHY_MISC_CTRL0_ICP_FORCE BIT(5) +#define MVEBU_COMPHY_MISC_CTRL0_REFCLK_SEL BIT(10) +#define MVEBU_COMPHY_RX_CTRL1(n) (0x940 + (n) * 0x1000) +#define MVEBU_COMPHY_RX_CTRL1_RXCLK2X_SEL BIT(11) +#define MVEBU_COMPHY_RX_CTRL1_CLK8T_EN BIT(12) +#define MVEBU_COMPHY_SPEED_DIV(n) (0x954 + (n) * 0x1000) +#define MVEBU_COMPHY_SPEED_DIV_TX_FORCE BIT(7) +#define MVEBU_SP_CALIB(n) (0x96c + (n) * 0x1000) +#define MVEBU_SP_CALIB_SAMPLER(n) ((n) << 8) +#define MVEBU_SP_CALIB_SAMPLER_EN BIT(12) +#define MVEBU_COMPHY_TX_SLEW_RATE(n) (0x974 + (n) * 0x1000) +#define MVEBU_COMPHY_TX_SLEW_RATE_EMPH(n) ((n) << 5) +#define MVEBU_COMPHY_TX_SLEW_RATE_SLC(n) ((n) << 10) +#define MVEBU_COMPHY_DTL_CTRL(n) (0x984 + (n) * 0x1000) +#define MVEBU_COMPHY_DTL_CTRL_DTL_FLOOP_EN BIT(2) +#define MVEBU_COMPHY_FRAME_DETECT0(n) (0xa14 + (n) * 0x1000) +#define MVEBU_COMPHY_FRAME_DETECT0_PATN(n) ((n) << 7) +#define MVEBU_COMPHY_FRAME_DETECT3(n) (0xa20 + (n) * 0x1000) +#define MVEBU_COMPHY_FRAME_DETECT3_LOST_TIMEOUT_EN BIT(12) +#define MVEBU_COMPHY_DME(n) (0xa28 + (n) * 0x1000) +#define MVEBU_COMPHY_DME_ETH_MODE BIT(7) +#define MVEBU_COMPHY_TRAINING0(n) (0xa68 + (n) * 0x1000) +#define MVEBU_COMPHY_TRAINING0_P2P_HOLD BIT(15) +#define MVEBU_COMPHY_TRAINING5(n) (0xaa4 + (n) * 0x1000) +#define MVEBU_COMPHY_TRAINING5_RX_TIMER(n) ((n) << 0) +#define MVEBU_COMPHY_TX_TRAIN_PRESET(n) (0xb1c + (n) * 0x1000) +#define MVEBU_COMPHY_TX_TRAIN_PRESET_16B_AUTO_EN BIT(8) +#define MVEBU_COMPHY_TX_TRAIN_PRESET_PRBS11 BIT(9) +#define MVEBU_COMPHY_GEN1_S3(n) (0xc40 + (n) * 0x1000) +#define MVEBU_COMPHY_GEN1_S3_FBCK_SEL BIT(9) +#define MVEBU_COMPHY_GEN1_S4(n) (0xc44 + (n) * 0x1000) +#define MVEBU_COMPHY_GEN1_S4_DFE_RES(n) ((n) << 8) +#define MVEBU_COMPHY_TX_PRESET(n) (0xc68 + (n) * 0x1000) +#define MVEBU_COMPHY_TX_PRESET_INDEX(n) ((n) << 0) +#define MVEBU_COMPHY_GEN1_S5(n) (0xd38 + (n) * 0x1000) +#define MVEBU_COMPHY_GEN1_S5_ICP(n) ((n) << 0) + +/* Relative to priv->regmap */ +#define MVEBU_COMPHY_CONF1(n) (0x1000 + (n) * 0x28) +#define MVEBU_COMPHY_CONF1_PWRUP BIT(1) +#define MVEBU_COMPHY_CONF1_USB_PCIE BIT(2) /* 0: Ethernet/SATA */ +#define MVEBU_COMPHY_CONF6(n) (0x1014 + (n) * 0x28) +#define MVEBU_COMPHY_CONF6_40B BIT(18) +#define MVEBU_COMPHY_SELECTOR 0x1140 +#define MVEBU_COMPHY_SELECTOR_PHY(n) ((n) * 0x4) +#define MVEBU_COMPHY_PIPE_SELECTOR 0x1144 +#define MVEBU_COMPHY_PIPE_SELECTOR_PIPE(n) ((n) * 0x4) +#define MVEBU_COMPHY_SD1_CTRL1 0x1148 +#define MVEBU_COMPHY_SD1_CTRL1_RXAUI1_EN BIT(26) +#define MVEBU_COMPHY_SD1_CTRL1_RXAUI0_EN BIT(27) + +#define MVEBU_COMPHY_LANES 6 +#define MVEBU_COMPHY_PORTS 3 + +#define COMPHY_SIP_POWER_ON 0x82000001 +#define COMPHY_SIP_POWER_OFF 0x82000002 + +/* + * A lane is described by the following bitfields: + * [ 1- 0]: COMPHY polarity invertion + * [ 2- 7]: COMPHY speed + * [ 5-11]: COMPHY port index + * [12-16]: COMPHY mode + * [17]: Clock source + * [18-20]: PCIe width (x1, x2, x4) + */ +#define COMPHY_FW_POL_OFFSET 0 +#define COMPHY_FW_POL_MASK GENMASK(1, 0) +#define COMPHY_FW_SPEED_OFFSET 2 +#define COMPHY_FW_SPEED_MASK GENMASK(7, 2) +#define COMPHY_FW_SPEED_MAX COMPHY_FW_SPEED_MASK +#define COMPHY_FW_SPEED_1250 0 +#define COMPHY_FW_SPEED_3125 2 +#define COMPHY_FW_SPEED_5000 3 +#define COMPHY_FW_SPEED_515625 4 +#define COMPHY_FW_SPEED_103125 6 +#define COMPHY_FW_PORT_OFFSET 8 +#define COMPHY_FW_PORT_MASK GENMASK(11, 8) +#define COMPHY_FW_MODE_OFFSET 12 +#define COMPHY_FW_MODE_MASK GENMASK(16, 12) +#define COMPHY_FW_WIDTH_OFFSET 18 +#define COMPHY_FW_WIDTH_MASK GENMASK(20, 18) + +#define COMPHY_FW_PARAM_FULL(mode, port, speed, pol, width) \ + ((((pol) << COMPHY_FW_POL_OFFSET) & COMPHY_FW_POL_MASK) | \ + (((mode) << COMPHY_FW_MODE_OFFSET) & COMPHY_FW_MODE_MASK) | \ + (((port) << COMPHY_FW_PORT_OFFSET) & COMPHY_FW_PORT_MASK) | \ + (((speed) << COMPHY_FW_SPEED_OFFSET) & COMPHY_FW_SPEED_MASK) | \ + (((width) << COMPHY_FW_WIDTH_OFFSET) & COMPHY_FW_WIDTH_MASK)) + +#define COMPHY_FW_PARAM(mode, port) \ + COMPHY_FW_PARAM_FULL(mode, port, COMPHY_FW_SPEED_MAX, 0, 0) + +#define COMPHY_FW_PARAM_ETH(mode, port, speed) \ + COMPHY_FW_PARAM_FULL(mode, port, speed, 0, 0) + +#define COMPHY_FW_PARAM_PCIE(mode, port, width) \ + COMPHY_FW_PARAM_FULL(mode, port, COMPHY_FW_SPEED_5000, 0, width) + +#define COMPHY_FW_MODE_SATA 0x1 +#define COMPHY_FW_MODE_SGMII 0x2 /* SGMII 1G */ +#define COMPHY_FW_MODE_2500BASEX 0x3 /* 2500BASE-X */ +#define COMPHY_FW_MODE_USB3H 0x4 +#define COMPHY_FW_MODE_USB3D 0x5 +#define COMPHY_FW_MODE_PCIE 0x6 +#define COMPHY_FW_MODE_RXAUI 0x7 +#define COMPHY_FW_MODE_XFI 0x8 /* SFI: 0x9 (is treated like XFI) */ + +struct mvebu_comphy_conf { + enum phy_mode mode; + int submode; + unsigned lane; + unsigned port; + u32 mux; + u32 fw_mode; +}; + +#define ETH_CONF(_lane, _port, _submode, _mux, _fw) \ + { \ + .lane = _lane, \ + .port = _port, \ + .mode = PHY_MODE_ETHERNET, \ + .submode = _submode, \ + .mux = _mux, \ + .fw_mode = _fw, \ + } + +#define GEN_CONF(_lane, _port, _mode, _fw) \ + { \ + .lane = _lane, \ + .port = _port, \ + .mode = _mode, \ + .submode = PHY_INTERFACE_MODE_NA, \ + .mux = -1, \ + .fw_mode = _fw, \ + } + +static const struct mvebu_comphy_conf mvebu_comphy_cp110_modes[] = { + /* lane 0 */ + GEN_CONF(0, 0, PHY_MODE_PCIE, COMPHY_FW_MODE_PCIE), + ETH_CONF(0, 1, PHY_INTERFACE_MODE_SGMII, 0x1, COMPHY_FW_MODE_SGMII), + ETH_CONF(0, 1, PHY_INTERFACE_MODE_2500BASEX, 0x1, COMPHY_FW_MODE_2500BASEX), + GEN_CONF(0, 1, PHY_MODE_SATA, COMPHY_FW_MODE_SATA), + /* lane 1 */ + GEN_CONF(1, 0, PHY_MODE_USB_HOST_SS, COMPHY_FW_MODE_USB3H), + GEN_CONF(1, 0, PHY_MODE_USB_DEVICE_SS, COMPHY_FW_MODE_USB3D), + GEN_CONF(1, 0, PHY_MODE_SATA, COMPHY_FW_MODE_SATA), + GEN_CONF(1, 0, PHY_MODE_PCIE, COMPHY_FW_MODE_PCIE), + ETH_CONF(1, 2, PHY_INTERFACE_MODE_SGMII, 0x1, COMPHY_FW_MODE_SGMII), + ETH_CONF(1, 2, PHY_INTERFACE_MODE_2500BASEX, 0x1, COMPHY_FW_MODE_2500BASEX), + /* lane 2 */ + ETH_CONF(2, 0, PHY_INTERFACE_MODE_SGMII, 0x1, COMPHY_FW_MODE_SGMII), + ETH_CONF(2, 0, PHY_INTERFACE_MODE_2500BASEX, 0x1, COMPHY_FW_MODE_2500BASEX), + ETH_CONF(2, 0, PHY_INTERFACE_MODE_RXAUI, 0x1, COMPHY_FW_MODE_RXAUI), + ETH_CONF(2, 0, PHY_INTERFACE_MODE_5GBASER, 0x1, COMPHY_FW_MODE_XFI), + ETH_CONF(2, 0, PHY_INTERFACE_MODE_10GBASER, 0x1, COMPHY_FW_MODE_XFI), + GEN_CONF(2, 0, PHY_MODE_USB_HOST_SS, COMPHY_FW_MODE_USB3H), + GEN_CONF(2, 0, PHY_MODE_SATA, COMPHY_FW_MODE_SATA), + GEN_CONF(2, 0, PHY_MODE_PCIE, COMPHY_FW_MODE_PCIE), + /* lane 3 */ + GEN_CONF(3, 0, PHY_MODE_PCIE, COMPHY_FW_MODE_PCIE), + ETH_CONF(3, 1, PHY_INTERFACE_MODE_SGMII, 0x2, COMPHY_FW_MODE_SGMII), + ETH_CONF(3, 1, PHY_INTERFACE_MODE_2500BASEX, 0x2, COMPHY_FW_MODE_2500BASEX), + ETH_CONF(3, 1, PHY_INTERFACE_MODE_RXAUI, 0x1, COMPHY_FW_MODE_RXAUI), + GEN_CONF(3, 1, PHY_MODE_USB_HOST_SS, COMPHY_FW_MODE_USB3H), + GEN_CONF(3, 1, PHY_MODE_SATA, COMPHY_FW_MODE_SATA), + /* lane 4 */ + ETH_CONF(4, 0, PHY_INTERFACE_MODE_SGMII, 0x2, COMPHY_FW_MODE_SGMII), + ETH_CONF(4, 0, PHY_INTERFACE_MODE_2500BASEX, 0x2, COMPHY_FW_MODE_2500BASEX), + ETH_CONF(4, 0, PHY_INTERFACE_MODE_5GBASER, 0x2, COMPHY_FW_MODE_XFI), + ETH_CONF(4, 0, PHY_INTERFACE_MODE_10GBASER, 0x2, COMPHY_FW_MODE_XFI), + ETH_CONF(4, 0, PHY_INTERFACE_MODE_RXAUI, 0x2, COMPHY_FW_MODE_RXAUI), + GEN_CONF(4, 0, PHY_MODE_USB_DEVICE_SS, COMPHY_FW_MODE_USB3D), + GEN_CONF(4, 1, PHY_MODE_USB_HOST_SS, COMPHY_FW_MODE_USB3H), + GEN_CONF(4, 1, PHY_MODE_PCIE, COMPHY_FW_MODE_PCIE), + ETH_CONF(4, 1, PHY_INTERFACE_MODE_SGMII, 0x1, COMPHY_FW_MODE_SGMII), + ETH_CONF(4, 1, PHY_INTERFACE_MODE_2500BASEX, -1, COMPHY_FW_MODE_2500BASEX), + ETH_CONF(4, 1, PHY_INTERFACE_MODE_5GBASER, -1, COMPHY_FW_MODE_XFI), + ETH_CONF(4, 1, PHY_INTERFACE_MODE_10GBASER, -1, COMPHY_FW_MODE_XFI), + /* lane 5 */ + ETH_CONF(5, 1, PHY_INTERFACE_MODE_RXAUI, 0x2, COMPHY_FW_MODE_RXAUI), + GEN_CONF(5, 1, PHY_MODE_SATA, COMPHY_FW_MODE_SATA), + ETH_CONF(5, 2, PHY_INTERFACE_MODE_SGMII, 0x1, COMPHY_FW_MODE_SGMII), + ETH_CONF(5, 2, PHY_INTERFACE_MODE_2500BASEX, 0x1, COMPHY_FW_MODE_2500BASEX), + GEN_CONF(5, 2, PHY_MODE_PCIE, COMPHY_FW_MODE_PCIE), +}; + +struct mvebu_comphy_priv { + void __iomem *base; + struct regmap *regmap; + struct device *dev; + struct clk *mg_domain_clk; + struct clk *mg_core_clk; + struct clk *axi_clk; + unsigned long cp_phys; +}; + +struct mvebu_comphy_lane { + struct mvebu_comphy_priv *priv; + unsigned id; + enum phy_mode mode; + int submode; + int port; +}; + +static int mvebu_comphy_smc(unsigned long function, unsigned long phys, + unsigned long lane, unsigned long mode) +{ + struct arm_smccc_res res; + s32 ret; + + arm_smccc_smc(function, phys, lane, mode, 0, 0, 0, 0, &res); + ret = res.a0; + + switch (ret) { + case SMCCC_RET_SUCCESS: + return 0; + case SMCCC_RET_NOT_SUPPORTED: + return -EOPNOTSUPP; + default: + return -EINVAL; + } +} + +static int mvebu_comphy_get_mode(bool fw_mode, int lane, int port, + enum phy_mode mode, int submode) +{ + int i, n = ARRAY_SIZE(mvebu_comphy_cp110_modes); + /* Ignore PCIe submode: it represents the width */ + bool ignore_submode = (mode == PHY_MODE_PCIE); + const struct mvebu_comphy_conf *conf; + + /* Unused PHY mux value is 0x0 */ + if (mode == PHY_MODE_INVALID) + return 0; + + for (i = 0; i < n; i++) { + conf = &mvebu_comphy_cp110_modes[i]; + if (conf->lane == lane && + conf->port == port && + conf->mode == mode && + (conf->submode == submode || ignore_submode)) + break; + } + + if (i == n) + return -EINVAL; + + if (fw_mode) + return conf->fw_mode; + else + return conf->mux; +} + +static inline int mvebu_comphy_get_mux(int lane, int port, + enum phy_mode mode, int submode) +{ + return mvebu_comphy_get_mode(false, lane, port, mode, submode); +} + +static inline int mvebu_comphy_get_fw_mode(int lane, int port, + enum phy_mode mode, int submode) +{ + return mvebu_comphy_get_mode(true, lane, port, mode, submode); +} + +static int mvebu_comphy_ethernet_init_reset(struct mvebu_comphy_lane *lane) +{ + struct mvebu_comphy_priv *priv = lane->priv; + u32 val; + + regmap_read(priv->regmap, MVEBU_COMPHY_CONF1(lane->id), &val); + val &= ~MVEBU_COMPHY_CONF1_USB_PCIE; + val |= MVEBU_COMPHY_CONF1_PWRUP; + regmap_write(priv->regmap, MVEBU_COMPHY_CONF1(lane->id), val); + + /* Select baud rates and PLLs */ + val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG0(lane->id)); + val &= ~(MVEBU_COMPHY_SERDES_CFG0_PU_PLL | + MVEBU_COMPHY_SERDES_CFG0_PU_RX | + MVEBU_COMPHY_SERDES_CFG0_PU_TX | + MVEBU_COMPHY_SERDES_CFG0_HALF_BUS | + MVEBU_COMPHY_SERDES_CFG0_GEN_RX(0xf) | + MVEBU_COMPHY_SERDES_CFG0_GEN_TX(0xf) | + MVEBU_COMPHY_SERDES_CFG0_RXAUI_MODE); + + switch (lane->submode) { + case PHY_INTERFACE_MODE_10GBASER: + val |= MVEBU_COMPHY_SERDES_CFG0_GEN_RX(0xe) | + MVEBU_COMPHY_SERDES_CFG0_GEN_TX(0xe); + break; + case PHY_INTERFACE_MODE_RXAUI: + val |= MVEBU_COMPHY_SERDES_CFG0_GEN_RX(0xb) | + MVEBU_COMPHY_SERDES_CFG0_GEN_TX(0xb) | + MVEBU_COMPHY_SERDES_CFG0_RXAUI_MODE; + break; + case PHY_INTERFACE_MODE_2500BASEX: + val |= MVEBU_COMPHY_SERDES_CFG0_GEN_RX(0x8) | + MVEBU_COMPHY_SERDES_CFG0_GEN_TX(0x8) | + MVEBU_COMPHY_SERDES_CFG0_HALF_BUS; + break; + case PHY_INTERFACE_MODE_SGMII: + val |= MVEBU_COMPHY_SERDES_CFG0_GEN_RX(0x6) | + MVEBU_COMPHY_SERDES_CFG0_GEN_TX(0x6) | + MVEBU_COMPHY_SERDES_CFG0_HALF_BUS; + break; + default: + dev_err(priv->dev, + "unsupported comphy submode (%d) on lane %d\n", + lane->submode, + lane->id); + return -ENOTSUPP; + } + + writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG0(lane->id)); + + if (lane->submode == PHY_INTERFACE_MODE_RXAUI) { + regmap_read(priv->regmap, MVEBU_COMPHY_SD1_CTRL1, &val); + + switch (lane->id) { + case 2: + case 3: + val |= MVEBU_COMPHY_SD1_CTRL1_RXAUI0_EN; + break; + case 4: + case 5: + val |= MVEBU_COMPHY_SD1_CTRL1_RXAUI1_EN; + break; + default: + dev_err(priv->dev, + "RXAUI is not supported on comphy lane %d\n", + lane->id); + return -EINVAL; + } + + regmap_write(priv->regmap, MVEBU_COMPHY_SD1_CTRL1, val); + } + + /* reset */ + val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id)); + val &= ~(MVEBU_COMPHY_SERDES_CFG1_RESET | + MVEBU_COMPHY_SERDES_CFG1_CORE_RESET | + MVEBU_COMPHY_SERDES_CFG1_RF_RESET); + writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id)); + + /* de-assert reset */ + val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id)); + val |= MVEBU_COMPHY_SERDES_CFG1_RESET | + MVEBU_COMPHY_SERDES_CFG1_CORE_RESET; + writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id)); + + /* wait until clocks are ready */ + mdelay(1); + + /* exlicitly disable 40B, the bits isn't clear on reset */ + regmap_read(priv->regmap, MVEBU_COMPHY_CONF6(lane->id), &val); + val &= ~MVEBU_COMPHY_CONF6_40B; + regmap_write(priv->regmap, MVEBU_COMPHY_CONF6(lane->id), val); + + /* refclk selection */ + val = readl(priv->base + MVEBU_COMPHY_MISC_CTRL0(lane->id)); + val &= ~MVEBU_COMPHY_MISC_CTRL0_REFCLK_SEL; + if (lane->submode == PHY_INTERFACE_MODE_10GBASER) + val |= MVEBU_COMPHY_MISC_CTRL0_ICP_FORCE; + writel(val, priv->base + MVEBU_COMPHY_MISC_CTRL0(lane->id)); + + /* power and pll selection */ + val = readl(priv->base + MVEBU_COMPHY_PWRPLL_CTRL(lane->id)); + val &= ~(MVEBU_COMPHY_PWRPLL_CTRL_RFREQ(0x1f) | + MVEBU_COMPHY_PWRPLL_PHY_MODE(0x7)); + val |= MVEBU_COMPHY_PWRPLL_CTRL_RFREQ(0x1) | + MVEBU_COMPHY_PWRPLL_PHY_MODE(0x4); + writel(val, priv->base + MVEBU_COMPHY_PWRPLL_CTRL(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_LOOPBACK(lane->id)); + val &= ~MVEBU_COMPHY_LOOPBACK_DBUS_WIDTH(0x7); + val |= MVEBU_COMPHY_LOOPBACK_DBUS_WIDTH(0x1); + writel(val, priv->base + MVEBU_COMPHY_LOOPBACK(lane->id)); + + return 0; +} + +static int mvebu_comphy_init_plls(struct mvebu_comphy_lane *lane) +{ + struct mvebu_comphy_priv *priv = lane->priv; + u32 val; + + /* SERDES external config */ + val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG0(lane->id)); + val |= MVEBU_COMPHY_SERDES_CFG0_PU_PLL | + MVEBU_COMPHY_SERDES_CFG0_PU_RX | + MVEBU_COMPHY_SERDES_CFG0_PU_TX; + writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG0(lane->id)); + + /* check rx/tx pll */ + readl_poll_timeout(priv->base + MVEBU_COMPHY_SERDES_STATUS0(lane->id), + val, + val & (MVEBU_COMPHY_SERDES_STATUS0_RX_PLL_RDY | + MVEBU_COMPHY_SERDES_STATUS0_TX_PLL_RDY), + 1000, 150000); + if (!(val & (MVEBU_COMPHY_SERDES_STATUS0_RX_PLL_RDY | + MVEBU_COMPHY_SERDES_STATUS0_TX_PLL_RDY))) + return -ETIMEDOUT; + + /* rx init */ + val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id)); + val |= MVEBU_COMPHY_SERDES_CFG1_RX_INIT; + writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id)); + + /* check rx */ + readl_poll_timeout(priv->base + MVEBU_COMPHY_SERDES_STATUS0(lane->id), + val, val & MVEBU_COMPHY_SERDES_STATUS0_RX_INIT, + 1000, 10000); + if (!(val & MVEBU_COMPHY_SERDES_STATUS0_RX_INIT)) + return -ETIMEDOUT; + + val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id)); + val &= ~MVEBU_COMPHY_SERDES_CFG1_RX_INIT; + writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id)); + + return 0; +} + +static int mvebu_comphy_set_mode_sgmii(struct phy *phy) +{ + struct mvebu_comphy_lane *lane = phy_get_drvdata(phy); + struct mvebu_comphy_priv *priv = lane->priv; + u32 val; + int err; + + err = mvebu_comphy_ethernet_init_reset(lane); + if (err) + return err; + + val = readl(priv->base + MVEBU_COMPHY_RX_CTRL1(lane->id)); + val &= ~MVEBU_COMPHY_RX_CTRL1_CLK8T_EN; + val |= MVEBU_COMPHY_RX_CTRL1_RXCLK2X_SEL; + writel(val, priv->base + MVEBU_COMPHY_RX_CTRL1(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_DTL_CTRL(lane->id)); + val &= ~MVEBU_COMPHY_DTL_CTRL_DTL_FLOOP_EN; + writel(val, priv->base + MVEBU_COMPHY_DTL_CTRL(lane->id)); + + regmap_read(priv->regmap, MVEBU_COMPHY_CONF1(lane->id), &val); + val &= ~MVEBU_COMPHY_CONF1_USB_PCIE; + val |= MVEBU_COMPHY_CONF1_PWRUP; + regmap_write(priv->regmap, MVEBU_COMPHY_CONF1(lane->id), val); + + val = readl(priv->base + MVEBU_COMPHY_GEN1_S0(lane->id)); + val &= ~MVEBU_COMPHY_GEN1_S0_TX_EMPH(0xf); + val |= MVEBU_COMPHY_GEN1_S0_TX_EMPH(0x1); + writel(val, priv->base + MVEBU_COMPHY_GEN1_S0(lane->id)); + + return mvebu_comphy_init_plls(lane); +} + +static int mvebu_comphy_set_mode_rxaui(struct phy *phy) +{ + struct mvebu_comphy_lane *lane = phy_get_drvdata(phy); + struct mvebu_comphy_priv *priv = lane->priv; + u32 val; + int err; + + err = mvebu_comphy_ethernet_init_reset(lane); + if (err) + return err; + + val = readl(priv->base + MVEBU_COMPHY_RX_CTRL1(lane->id)); + val |= MVEBU_COMPHY_RX_CTRL1_RXCLK2X_SEL | + MVEBU_COMPHY_RX_CTRL1_CLK8T_EN; + writel(val, priv->base + MVEBU_COMPHY_RX_CTRL1(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_DTL_CTRL(lane->id)); + val |= MVEBU_COMPHY_DTL_CTRL_DTL_FLOOP_EN; + writel(val, priv->base + MVEBU_COMPHY_DTL_CTRL(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG2(lane->id)); + val |= MVEBU_COMPHY_SERDES_CFG2_DFE_EN; + writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG2(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_DFE_RES(lane->id)); + val |= MVEBU_COMPHY_DFE_RES_FORCE_GEN_TBL; + writel(val, priv->base + MVEBU_COMPHY_DFE_RES(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_GEN1_S0(lane->id)); + val &= ~MVEBU_COMPHY_GEN1_S0_TX_EMPH(0xf); + val |= MVEBU_COMPHY_GEN1_S0_TX_EMPH(0xd); + writel(val, priv->base + MVEBU_COMPHY_GEN1_S0(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_GEN1_S1(lane->id)); + val &= ~(MVEBU_COMPHY_GEN1_S1_RX_MUL_PI(0x7) | + MVEBU_COMPHY_GEN1_S1_RX_MUL_PF(0x7)); + val |= MVEBU_COMPHY_GEN1_S1_RX_MUL_PI(0x1) | + MVEBU_COMPHY_GEN1_S1_RX_MUL_PF(0x1) | + MVEBU_COMPHY_GEN1_S1_RX_DFE_EN; + writel(val, priv->base + MVEBU_COMPHY_GEN1_S1(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_COEF(lane->id)); + val &= ~(MVEBU_COMPHY_COEF_DFE_EN | MVEBU_COMPHY_COEF_DFE_CTRL); + writel(val, priv->base + MVEBU_COMPHY_COEF(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_GEN1_S4(lane->id)); + val &= ~MVEBU_COMPHY_GEN1_S4_DFE_RES(0x3); + val |= MVEBU_COMPHY_GEN1_S4_DFE_RES(0x1); + writel(val, priv->base + MVEBU_COMPHY_GEN1_S4(lane->id)); + + return mvebu_comphy_init_plls(lane); +} + +static int mvebu_comphy_set_mode_10gbaser(struct phy *phy) +{ + struct mvebu_comphy_lane *lane = phy_get_drvdata(phy); + struct mvebu_comphy_priv *priv = lane->priv; + u32 val; + int err; + + err = mvebu_comphy_ethernet_init_reset(lane); + if (err) + return err; + + val = readl(priv->base + MVEBU_COMPHY_RX_CTRL1(lane->id)); + val |= MVEBU_COMPHY_RX_CTRL1_RXCLK2X_SEL | + MVEBU_COMPHY_RX_CTRL1_CLK8T_EN; + writel(val, priv->base + MVEBU_COMPHY_RX_CTRL1(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_DTL_CTRL(lane->id)); + val |= MVEBU_COMPHY_DTL_CTRL_DTL_FLOOP_EN; + writel(val, priv->base + MVEBU_COMPHY_DTL_CTRL(lane->id)); + + /* Speed divider */ + val = readl(priv->base + MVEBU_COMPHY_SPEED_DIV(lane->id)); + val |= MVEBU_COMPHY_SPEED_DIV_TX_FORCE; + writel(val, priv->base + MVEBU_COMPHY_SPEED_DIV(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG2(lane->id)); + val |= MVEBU_COMPHY_SERDES_CFG2_DFE_EN; + writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG2(lane->id)); + + /* DFE resolution */ + val = readl(priv->base + MVEBU_COMPHY_DFE_RES(lane->id)); + val |= MVEBU_COMPHY_DFE_RES_FORCE_GEN_TBL; + writel(val, priv->base + MVEBU_COMPHY_DFE_RES(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_GEN1_S0(lane->id)); + val &= ~(MVEBU_COMPHY_GEN1_S0_TX_AMP(0x1f) | + MVEBU_COMPHY_GEN1_S0_TX_EMPH(0xf)); + val |= MVEBU_COMPHY_GEN1_S0_TX_AMP(0x1c) | + MVEBU_COMPHY_GEN1_S0_TX_EMPH(0xe); + writel(val, priv->base + MVEBU_COMPHY_GEN1_S0(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_GEN1_S2(lane->id)); + val &= ~MVEBU_COMPHY_GEN1_S2_TX_EMPH(0xf); + val |= MVEBU_COMPHY_GEN1_S2_TX_EMPH_EN; + writel(val, priv->base + MVEBU_COMPHY_GEN1_S2(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_TX_SLEW_RATE(lane->id)); + val |= MVEBU_COMPHY_TX_SLEW_RATE_EMPH(0x3) | + MVEBU_COMPHY_TX_SLEW_RATE_SLC(0x3f); + writel(val, priv->base + MVEBU_COMPHY_TX_SLEW_RATE(lane->id)); + + /* Impedance calibration */ + val = readl(priv->base + MVEBU_COMPHY_IMP_CAL(lane->id)); + val &= ~MVEBU_COMPHY_IMP_CAL_TX_EXT(0x1f); + val |= MVEBU_COMPHY_IMP_CAL_TX_EXT(0xe) | + MVEBU_COMPHY_IMP_CAL_TX_EXT_EN; + writel(val, priv->base + MVEBU_COMPHY_IMP_CAL(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_GEN1_S5(lane->id)); + val &= ~MVEBU_COMPHY_GEN1_S5_ICP(0xf); + writel(val, priv->base + MVEBU_COMPHY_GEN1_S5(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_GEN1_S1(lane->id)); + val &= ~(MVEBU_COMPHY_GEN1_S1_RX_MUL_PI(0x7) | + MVEBU_COMPHY_GEN1_S1_RX_MUL_PF(0x7) | + MVEBU_COMPHY_GEN1_S1_RX_MUL_FI(0x3) | + MVEBU_COMPHY_GEN1_S1_RX_MUL_FF(0x3)); + val |= MVEBU_COMPHY_GEN1_S1_RX_DFE_EN | + MVEBU_COMPHY_GEN1_S1_RX_MUL_PI(0x2) | + MVEBU_COMPHY_GEN1_S1_RX_MUL_PF(0x2) | + MVEBU_COMPHY_GEN1_S1_RX_MUL_FF(0x1) | + MVEBU_COMPHY_GEN1_S1_RX_DIV(0x3); + writel(val, priv->base + MVEBU_COMPHY_GEN1_S1(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_COEF(lane->id)); + val &= ~(MVEBU_COMPHY_COEF_DFE_EN | MVEBU_COMPHY_COEF_DFE_CTRL); + writel(val, priv->base + MVEBU_COMPHY_COEF(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_GEN1_S4(lane->id)); + val &= ~MVEBU_COMPHY_GEN1_S4_DFE_RES(0x3); + val |= MVEBU_COMPHY_GEN1_S4_DFE_RES(0x1); + writel(val, priv->base + MVEBU_COMPHY_GEN1_S4(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_GEN1_S3(lane->id)); + val |= MVEBU_COMPHY_GEN1_S3_FBCK_SEL; + writel(val, priv->base + MVEBU_COMPHY_GEN1_S3(lane->id)); + + /* rx training timer */ + val = readl(priv->base + MVEBU_COMPHY_TRAINING5(lane->id)); + val &= ~MVEBU_COMPHY_TRAINING5_RX_TIMER(0x3ff); + val |= MVEBU_COMPHY_TRAINING5_RX_TIMER(0x13); + writel(val, priv->base + MVEBU_COMPHY_TRAINING5(lane->id)); + + /* tx train peak to peak hold */ + val = readl(priv->base + MVEBU_COMPHY_TRAINING0(lane->id)); + val |= MVEBU_COMPHY_TRAINING0_P2P_HOLD; + writel(val, priv->base + MVEBU_COMPHY_TRAINING0(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_TX_PRESET(lane->id)); + val &= ~MVEBU_COMPHY_TX_PRESET_INDEX(0xf); + val |= MVEBU_COMPHY_TX_PRESET_INDEX(0x2); /* preset coeff */ + writel(val, priv->base + MVEBU_COMPHY_TX_PRESET(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_FRAME_DETECT3(lane->id)); + val &= ~MVEBU_COMPHY_FRAME_DETECT3_LOST_TIMEOUT_EN; + writel(val, priv->base + MVEBU_COMPHY_FRAME_DETECT3(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_TX_TRAIN_PRESET(lane->id)); + val |= MVEBU_COMPHY_TX_TRAIN_PRESET_16B_AUTO_EN | + MVEBU_COMPHY_TX_TRAIN_PRESET_PRBS11; + writel(val, priv->base + MVEBU_COMPHY_TX_TRAIN_PRESET(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_FRAME_DETECT0(lane->id)); + val &= ~MVEBU_COMPHY_FRAME_DETECT0_PATN(0x1ff); + val |= MVEBU_COMPHY_FRAME_DETECT0_PATN(0x88); + writel(val, priv->base + MVEBU_COMPHY_FRAME_DETECT0(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_DME(lane->id)); + val |= MVEBU_COMPHY_DME_ETH_MODE; + writel(val, priv->base + MVEBU_COMPHY_DME(lane->id)); + + val = readl(priv->base + MVEBU_COMPHY_VDD_CAL0(lane->id)); + val |= MVEBU_COMPHY_VDD_CAL0_CONT_MODE; + writel(val, priv->base + MVEBU_COMPHY_VDD_CAL0(lane->id)); + + val = readl(priv->base + MVEBU_SP_CALIB(lane->id)); + val &= ~MVEBU_SP_CALIB_SAMPLER(0x3); + val |= MVEBU_SP_CALIB_SAMPLER(0x3) | + MVEBU_SP_CALIB_SAMPLER_EN; + writel(val, priv->base + MVEBU_SP_CALIB(lane->id)); + val &= ~MVEBU_SP_CALIB_SAMPLER_EN; + writel(val, priv->base + MVEBU_SP_CALIB(lane->id)); + + /* External rx regulator */ + val = readl(priv->base + MVEBU_COMPHY_EXT_SELV(lane->id)); + val &= ~MVEBU_COMPHY_EXT_SELV_RX_SAMPL(0x1f); + val |= MVEBU_COMPHY_EXT_SELV_RX_SAMPL(0x1a); + writel(val, priv->base + MVEBU_COMPHY_EXT_SELV(lane->id)); + + return mvebu_comphy_init_plls(lane); +} + +static int mvebu_comphy_power_on_legacy(struct phy *phy) +{ + struct mvebu_comphy_lane *lane = phy_get_drvdata(phy); + struct mvebu_comphy_priv *priv = lane->priv; + int ret, mux; + u32 val; + + mux = mvebu_comphy_get_mux(lane->id, lane->port, + lane->mode, lane->submode); + if (mux < 0) + return -ENOTSUPP; + + regmap_read(priv->regmap, MVEBU_COMPHY_PIPE_SELECTOR, &val); + val &= ~(0xf << MVEBU_COMPHY_PIPE_SELECTOR_PIPE(lane->id)); + regmap_write(priv->regmap, MVEBU_COMPHY_PIPE_SELECTOR, val); + + regmap_read(priv->regmap, MVEBU_COMPHY_SELECTOR, &val); + val &= ~(0xf << MVEBU_COMPHY_SELECTOR_PHY(lane->id)); + val |= mux << MVEBU_COMPHY_SELECTOR_PHY(lane->id); + regmap_write(priv->regmap, MVEBU_COMPHY_SELECTOR, val); + + switch (lane->submode) { + case PHY_INTERFACE_MODE_SGMII: + case PHY_INTERFACE_MODE_2500BASEX: + ret = mvebu_comphy_set_mode_sgmii(phy); + break; + case PHY_INTERFACE_MODE_RXAUI: + ret = mvebu_comphy_set_mode_rxaui(phy); + break; + case PHY_INTERFACE_MODE_10GBASER: + ret = mvebu_comphy_set_mode_10gbaser(phy); + break; + default: + return -ENOTSUPP; + } + + /* digital reset */ + val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id)); + val |= MVEBU_COMPHY_SERDES_CFG1_RF_RESET; + writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id)); + + return ret; +} + +static int mvebu_comphy_power_on(struct phy *phy) +{ + struct mvebu_comphy_lane *lane = phy_get_drvdata(phy); + struct mvebu_comphy_priv *priv = lane->priv; + int fw_mode, fw_speed; + u32 fw_param = 0; + int ret; + + fw_mode = mvebu_comphy_get_fw_mode(lane->id, lane->port, + lane->mode, lane->submode); + if (fw_mode < 0) + goto try_legacy; + + /* Try SMC flow first */ + switch (lane->mode) { + case PHY_MODE_ETHERNET: + switch (lane->submode) { + case PHY_INTERFACE_MODE_RXAUI: + dev_dbg(priv->dev, "set lane %d to RXAUI mode\n", + lane->id); + fw_speed = 0; + break; + case PHY_INTERFACE_MODE_SGMII: + dev_dbg(priv->dev, "set lane %d to 1000BASE-X mode\n", + lane->id); + fw_speed = COMPHY_FW_SPEED_1250; + break; + case PHY_INTERFACE_MODE_2500BASEX: + dev_dbg(priv->dev, "set lane %d to 2500BASE-X mode\n", + lane->id); + fw_speed = COMPHY_FW_SPEED_3125; + break; + case PHY_INTERFACE_MODE_5GBASER: + dev_dbg(priv->dev, "set lane %d to 5GBASE-R mode\n", + lane->id); + fw_speed = COMPHY_FW_SPEED_515625; + break; + case PHY_INTERFACE_MODE_10GBASER: + dev_dbg(priv->dev, "set lane %d to 10GBASE-R mode\n", + lane->id); + fw_speed = COMPHY_FW_SPEED_103125; + break; + default: + dev_err(priv->dev, "unsupported Ethernet mode (%d)\n", + lane->submode); + return -ENOTSUPP; + } + fw_param = COMPHY_FW_PARAM_ETH(fw_mode, lane->port, fw_speed); + break; + case PHY_MODE_USB_HOST_SS: + case PHY_MODE_USB_DEVICE_SS: + dev_dbg(priv->dev, "set lane %d to USB3 mode\n", lane->id); + fw_param = COMPHY_FW_PARAM(fw_mode, lane->port); + break; + case PHY_MODE_SATA: + dev_dbg(priv->dev, "set lane %d to SATA mode\n", lane->id); + fw_param = COMPHY_FW_PARAM(fw_mode, lane->port); + break; + case PHY_MODE_PCIE: + dev_dbg(priv->dev, "set lane %d to PCIe mode (x%d)\n", lane->id, + lane->submode); + fw_param = COMPHY_FW_PARAM_PCIE(fw_mode, lane->port, + lane->submode); + break; + default: + dev_err(priv->dev, "unsupported PHY mode (%d)\n", lane->mode); + return -ENOTSUPP; + } + + ret = mvebu_comphy_smc(COMPHY_SIP_POWER_ON, priv->cp_phys, lane->id, + fw_param); + if (!ret) + return ret; + + if (ret == -EOPNOTSUPP) + dev_err(priv->dev, + "unsupported SMC call, try updating your firmware\n"); + + dev_warn(priv->dev, + "Firmware could not configure PHY %d with mode %d (ret: %d), trying legacy method\n", + lane->id, lane->mode, ret); + +try_legacy: + /* Fallback to Linux's implementation */ + return mvebu_comphy_power_on_legacy(phy); +} + +static int mvebu_comphy_set_mode(struct phy *phy, + enum phy_mode mode, int submode) +{ + struct mvebu_comphy_lane *lane = phy_get_drvdata(phy); + + if (submode == PHY_INTERFACE_MODE_1000BASEX) + submode = PHY_INTERFACE_MODE_SGMII; + + if (mvebu_comphy_get_fw_mode(lane->id, lane->port, mode, submode) < 0) + return -EINVAL; + + lane->mode = mode; + lane->submode = submode; + + /* PCIe submode represents the width */ + if (mode == PHY_MODE_PCIE && !lane->submode) + lane->submode = 1; + + return 0; +} + +static int mvebu_comphy_power_off_legacy(struct phy *phy) +{ + struct mvebu_comphy_lane *lane = phy_get_drvdata(phy); + struct mvebu_comphy_priv *priv = lane->priv; + u32 val; + + val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id)); + val &= ~(MVEBU_COMPHY_SERDES_CFG1_RESET | + MVEBU_COMPHY_SERDES_CFG1_CORE_RESET | + MVEBU_COMPHY_SERDES_CFG1_RF_RESET); + writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id)); + + regmap_read(priv->regmap, MVEBU_COMPHY_SELECTOR, &val); + val &= ~(0xf << MVEBU_COMPHY_SELECTOR_PHY(lane->id)); + regmap_write(priv->regmap, MVEBU_COMPHY_SELECTOR, val); + + regmap_read(priv->regmap, MVEBU_COMPHY_PIPE_SELECTOR, &val); + val &= ~(0xf << MVEBU_COMPHY_PIPE_SELECTOR_PIPE(lane->id)); + regmap_write(priv->regmap, MVEBU_COMPHY_PIPE_SELECTOR, val); + + return 0; +} + +static int mvebu_comphy_power_off(struct phy *phy) +{ + struct mvebu_comphy_lane *lane = phy_get_drvdata(phy); + struct mvebu_comphy_priv *priv = lane->priv; + int ret; + + ret = mvebu_comphy_smc(COMPHY_SIP_POWER_OFF, priv->cp_phys, + lane->id, 0); + if (!ret) + return ret; + + /* Fallback to Linux's implementation */ + return mvebu_comphy_power_off_legacy(phy); +} + +static const struct phy_ops mvebu_comphy_ops = { + .power_on = mvebu_comphy_power_on, + .power_off = mvebu_comphy_power_off, + .set_mode = mvebu_comphy_set_mode, + .owner = THIS_MODULE, +}; + +static struct phy *mvebu_comphy_xlate(struct device *dev, + struct of_phandle_args *args) +{ + struct mvebu_comphy_lane *lane; + struct phy *phy; + + if (WARN_ON(args->args[0] >= MVEBU_COMPHY_PORTS)) + return ERR_PTR(-EINVAL); + + phy = of_phy_simple_xlate(dev, args); + if (IS_ERR(phy)) + return phy; + + lane = phy_get_drvdata(phy); + lane->port = args->args[0]; + + return phy; +} + +static int mvebu_comphy_init_clks(struct mvebu_comphy_priv *priv) +{ + int ret; + + priv->mg_domain_clk = devm_clk_get(priv->dev, "mg_clk"); + if (IS_ERR(priv->mg_domain_clk)) + return PTR_ERR(priv->mg_domain_clk); + + ret = clk_prepare_enable(priv->mg_domain_clk); + if (ret < 0) + return ret; + + priv->mg_core_clk = devm_clk_get(priv->dev, "mg_core_clk"); + if (IS_ERR(priv->mg_core_clk)) { + ret = PTR_ERR(priv->mg_core_clk); + goto dis_mg_domain_clk; + } + + ret = clk_prepare_enable(priv->mg_core_clk); + if (ret < 0) + goto dis_mg_domain_clk; + + priv->axi_clk = devm_clk_get(priv->dev, "axi_clk"); + if (IS_ERR(priv->axi_clk)) { + ret = PTR_ERR(priv->axi_clk); + goto dis_mg_core_clk; + } + + ret = clk_prepare_enable(priv->axi_clk); + if (ret < 0) + goto dis_mg_core_clk; + + return 0; + +dis_mg_core_clk: + clk_disable_unprepare(priv->mg_core_clk); + +dis_mg_domain_clk: + clk_disable_unprepare(priv->mg_domain_clk); + + priv->mg_domain_clk = NULL; + priv->mg_core_clk = NULL; + priv->axi_clk = NULL; + + return ret; +}; + +static void mvebu_comphy_disable_unprepare_clks(struct mvebu_comphy_priv *priv) +{ + if (priv->axi_clk) + clk_disable_unprepare(priv->axi_clk); + + if (priv->mg_core_clk) + clk_disable_unprepare(priv->mg_core_clk); + + if (priv->mg_domain_clk) + clk_disable_unprepare(priv->mg_domain_clk); +} + +static int mvebu_comphy_probe(struct platform_device *pdev) +{ + struct mvebu_comphy_priv *priv; + struct phy_provider *provider; + struct device_node *child; + struct resource *res; + int ret; + + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->dev = &pdev->dev; + priv->regmap = + syscon_regmap_lookup_by_phandle(pdev->dev.of_node, + "marvell,system-controller"); + if (IS_ERR(priv->regmap)) + return PTR_ERR(priv->regmap); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + priv->base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(priv->base)) + return PTR_ERR(priv->base); + + /* + * Ignore error if clocks have not been initialized properly for DT + * compatibility reasons. + */ + ret = mvebu_comphy_init_clks(priv); + if (ret) { + if (ret == -EPROBE_DEFER) + return ret; + dev_warn(&pdev->dev, "cannot initialize clocks\n"); + } + + /* + * Hack to retrieve a physical offset relative to this CP that will be + * given to the firmware + */ + priv->cp_phys = res->start; + + for_each_available_child_of_node(pdev->dev.of_node, child) { + struct mvebu_comphy_lane *lane; + struct phy *phy; + u32 val; + + ret = of_property_read_u32(child, "reg", &val); + if (ret < 0) { + dev_err(&pdev->dev, "missing 'reg' property (%d)\n", + ret); + continue; + } + + if (val >= MVEBU_COMPHY_LANES) { + dev_err(&pdev->dev, "invalid 'reg' property\n"); + continue; + } + + lane = devm_kzalloc(&pdev->dev, sizeof(*lane), GFP_KERNEL); + if (!lane) { + of_node_put(child); + ret = -ENOMEM; + goto disable_clks; + } + + phy = devm_phy_create(&pdev->dev, child, &mvebu_comphy_ops); + if (IS_ERR(phy)) { + of_node_put(child); + ret = PTR_ERR(phy); + goto disable_clks; + } + + lane->priv = priv; + lane->mode = PHY_MODE_INVALID; + lane->submode = PHY_INTERFACE_MODE_NA; + lane->id = val; + lane->port = -1; + phy_set_drvdata(phy, lane); + + /* + * All modes are supported in this driver so we could call + * mvebu_comphy_power_off(phy) here to avoid relying on the + * bootloader/firmware configuration, but for compatibility + * reasons we cannot de-configure the COMPHY without being sure + * that the firmware is up-to-date and fully-featured. + */ + } + + dev_set_drvdata(&pdev->dev, priv); + provider = devm_of_phy_provider_register(&pdev->dev, + mvebu_comphy_xlate); + + return PTR_ERR_OR_ZERO(provider); + +disable_clks: + mvebu_comphy_disable_unprepare_clks(priv); + + return ret; +} + +static const struct of_device_id mvebu_comphy_of_match_table[] = { + { .compatible = "marvell,comphy-cp110" }, + { }, +}; +MODULE_DEVICE_TABLE(of, mvebu_comphy_of_match_table); + +static struct platform_driver mvebu_comphy_driver = { + .probe = mvebu_comphy_probe, + .driver = { + .name = "mvebu-comphy", + .of_match_table = mvebu_comphy_of_match_table, + }, +}; +module_platform_driver(mvebu_comphy_driver); + +MODULE_AUTHOR("Antoine Tenart "); +MODULE_DESCRIPTION("Common PHY driver for mvebu SoCs"); +MODULE_LICENSE("GPL v2"); -- cgit v1.2.3