diff options
author | 2023-02-21 18:24:12 -0800 | |
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committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/usb/host/fsl-mph-dr-of.c | |
download | linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip |
Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
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().
...
Diffstat (limited to 'drivers/usb/host/fsl-mph-dr-of.c')
-rw-r--r-- | drivers/usb/host/fsl-mph-dr-of.c | 376 |
1 files changed, 376 insertions, 0 deletions
diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c new file mode 100644 index 000000000..e5df17522 --- /dev/null +++ b/drivers/usb/host/fsl-mph-dr-of.c @@ -0,0 +1,376 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Setup platform devices needed by the Freescale multi-port host + * and/or dual-role USB controller modules based on the description + * in flat device tree. + */ + +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/fsl_devices.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/of_platform.h> +#include <linux/clk.h> +#include <linux/module.h> +#include <linux/dma-mapping.h> + +struct fsl_usb2_dev_data { + char *dr_mode; /* controller mode */ + char *drivers[3]; /* drivers to instantiate for this mode */ + enum fsl_usb2_operating_modes op_mode; /* operating mode */ +}; + +static struct fsl_usb2_dev_data dr_mode_data[] = { + { + .dr_mode = "host", + .drivers = { "fsl-ehci", NULL, NULL, }, + .op_mode = FSL_USB2_DR_HOST, + }, + { + .dr_mode = "otg", + .drivers = { "fsl-usb2-otg", "fsl-ehci", "fsl-usb2-udc", }, + .op_mode = FSL_USB2_DR_OTG, + }, + { + .dr_mode = "peripheral", + .drivers = { "fsl-usb2-udc", NULL, NULL, }, + .op_mode = FSL_USB2_DR_DEVICE, + }, +}; + +static struct fsl_usb2_dev_data *get_dr_mode_data(struct device_node *np) +{ + const unsigned char *prop; + int i; + + prop = of_get_property(np, "dr_mode", NULL); + if (prop) { + for (i = 0; i < ARRAY_SIZE(dr_mode_data); i++) { + if (!strcmp(prop, dr_mode_data[i].dr_mode)) + return &dr_mode_data[i]; + } + } + pr_warn("%pOF: Invalid 'dr_mode' property, fallback to host mode\n", + np); + return &dr_mode_data[0]; /* mode not specified, use host */ +} + +static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type) +{ + if (!phy_type) + return FSL_USB2_PHY_NONE; + if (!strcasecmp(phy_type, "ulpi")) + return FSL_USB2_PHY_ULPI; + if (!strcasecmp(phy_type, "utmi")) + return FSL_USB2_PHY_UTMI; + if (!strcasecmp(phy_type, "utmi_wide")) + return FSL_USB2_PHY_UTMI_WIDE; + if (!strcasecmp(phy_type, "utmi_dual")) + return FSL_USB2_PHY_UTMI_DUAL; + if (!strcasecmp(phy_type, "serial")) + return FSL_USB2_PHY_SERIAL; + + return FSL_USB2_PHY_NONE; +} + +static struct platform_device *fsl_usb2_device_register( + struct platform_device *ofdev, + struct fsl_usb2_platform_data *pdata, + const char *name, int id) +{ + struct platform_device *pdev; + const struct resource *res = ofdev->resource; + unsigned int num = ofdev->num_resources; + int retval; + + pdev = platform_device_alloc(name, id); + if (!pdev) { + retval = -ENOMEM; + goto error; + } + + pdev->dev.parent = &ofdev->dev; + + pdev->dev.coherent_dma_mask = ofdev->dev.coherent_dma_mask; + + if (!pdev->dev.dma_mask) { + pdev->dev.dma_mask = &ofdev->dev.coherent_dma_mask; + } else { + retval = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (retval) + goto error; + } + + retval = platform_device_add_data(pdev, pdata, sizeof(*pdata)); + if (retval) + goto error; + + if (num) { + retval = platform_device_add_resources(pdev, res, num); + if (retval) + goto error; + } + + pdev->dev.of_node = ofdev->dev.of_node; + pdev->dev.of_node_reused = true; + + retval = platform_device_add(pdev); + if (retval) + goto error; + + return pdev; + +error: + platform_device_put(pdev); + return ERR_PTR(retval); +} + +static const struct of_device_id fsl_usb2_mph_dr_of_match[]; + +static enum fsl_usb2_controller_ver usb_get_ver_info(struct device_node *np) +{ + enum fsl_usb2_controller_ver ver = FSL_USB_VER_NONE; + + /* + * returns 1 for usb controller version 1.6 + * returns 2 for usb controller version 2.2 + * returns 3 for usb controller version 2.4 + * returns 4 for usb controller version 2.5 + * returns 0 otherwise + */ + if (of_device_is_compatible(np, "fsl-usb2-dr")) { + if (of_device_is_compatible(np, "fsl-usb2-dr-v1.6")) + ver = FSL_USB_VER_1_6; + else if (of_device_is_compatible(np, "fsl-usb2-dr-v2.2")) + ver = FSL_USB_VER_2_2; + else if (of_device_is_compatible(np, "fsl-usb2-dr-v2.4")) + ver = FSL_USB_VER_2_4; + else if (of_device_is_compatible(np, "fsl-usb2-dr-v2.5")) + ver = FSL_USB_VER_2_5; + else /* for previous controller versions */ + ver = FSL_USB_VER_OLD; + + if (ver > FSL_USB_VER_NONE) + return ver; + } + + if (of_device_is_compatible(np, "fsl,mpc5121-usb2-dr")) + return FSL_USB_VER_OLD; + + if (of_device_is_compatible(np, "fsl-usb2-mph")) { + if (of_device_is_compatible(np, "fsl-usb2-mph-v1.6")) + ver = FSL_USB_VER_1_6; + else if (of_device_is_compatible(np, "fsl-usb2-mph-v2.2")) + ver = FSL_USB_VER_2_2; + else if (of_device_is_compatible(np, "fsl-usb2-mph-v2.4")) + ver = FSL_USB_VER_2_4; + else if (of_device_is_compatible(np, "fsl-usb2-mph-v2.5")) + ver = FSL_USB_VER_2_5; + else /* for previous controller versions */ + ver = FSL_USB_VER_OLD; + } + + return ver; +} + +static int fsl_usb2_mph_dr_of_probe(struct platform_device *ofdev) +{ + struct device_node *np = ofdev->dev.of_node; + struct platform_device *usb_dev; + struct fsl_usb2_platform_data data, *pdata; + struct fsl_usb2_dev_data *dev_data; + const struct of_device_id *match; + const unsigned char *prop; + static unsigned int idx; + int i; + + if (!of_device_is_available(np)) + return -ENODEV; + + match = of_match_device(fsl_usb2_mph_dr_of_match, &ofdev->dev); + if (!match) + return -ENODEV; + + pdata = &data; + if (match->data) + memcpy(pdata, match->data, sizeof(data)); + else + memset(pdata, 0, sizeof(data)); + + dev_data = get_dr_mode_data(np); + + if (of_device_is_compatible(np, "fsl-usb2-mph")) { + if (of_get_property(np, "port0", NULL)) + pdata->port_enables |= FSL_USB2_PORT0_ENABLED; + + if (of_get_property(np, "port1", NULL)) + pdata->port_enables |= FSL_USB2_PORT1_ENABLED; + + pdata->operating_mode = FSL_USB2_MPH_HOST; + } else { + if (of_get_property(np, "fsl,invert-drvvbus", NULL)) + pdata->invert_drvvbus = 1; + + if (of_get_property(np, "fsl,invert-pwr-fault", NULL)) + pdata->invert_pwr_fault = 1; + + /* setup mode selected in the device tree */ + pdata->operating_mode = dev_data->op_mode; + } + + prop = of_get_property(np, "phy_type", NULL); + pdata->phy_mode = determine_usb_phy(prop); + pdata->controller_ver = usb_get_ver_info(np); + + /* Activate Erratum by reading property in device tree */ + pdata->has_fsl_erratum_a007792 = + of_property_read_bool(np, "fsl,usb-erratum-a007792"); + pdata->has_fsl_erratum_a005275 = + of_property_read_bool(np, "fsl,usb-erratum-a005275"); + pdata->has_fsl_erratum_a005697 = + of_property_read_bool(np, "fsl,usb_erratum-a005697"); + pdata->has_fsl_erratum_a006918 = + of_property_read_bool(np, "fsl,usb_erratum-a006918"); + pdata->has_fsl_erratum_14 = + of_property_read_bool(np, "fsl,usb_erratum-14"); + + /* + * Determine whether phy_clk_valid needs to be checked + * by reading property in device tree + */ + pdata->check_phy_clk_valid = + of_property_read_bool(np, "phy-clk-valid"); + + if (pdata->have_sysif_regs) { + if (pdata->controller_ver == FSL_USB_VER_NONE) { + dev_warn(&ofdev->dev, "Could not get controller version\n"); + return -ENODEV; + } + } + + for (i = 0; i < ARRAY_SIZE(dev_data->drivers); i++) { + if (!dev_data->drivers[i]) + continue; + usb_dev = fsl_usb2_device_register(ofdev, pdata, + dev_data->drivers[i], idx); + if (IS_ERR(usb_dev)) { + dev_err(&ofdev->dev, "Can't register usb device\n"); + return PTR_ERR(usb_dev); + } + } + idx++; + return 0; +} + +static int __unregister_subdev(struct device *dev, void *d) +{ + platform_device_unregister(to_platform_device(dev)); + return 0; +} + +static int fsl_usb2_mph_dr_of_remove(struct platform_device *ofdev) +{ + device_for_each_child(&ofdev->dev, NULL, __unregister_subdev); + return 0; +} + +#ifdef CONFIG_PPC_MPC512x + +#define USBGENCTRL 0x200 /* NOTE: big endian */ +#define GC_WU_INT_CLR (1 << 5) /* Wakeup int clear */ +#define GC_ULPI_SEL (1 << 4) /* ULPI i/f select (usb0 only)*/ +#define GC_PPP (1 << 3) /* Inv. Port Power Polarity */ +#define GC_PFP (1 << 2) /* Inv. Power Fault Polarity */ +#define GC_WU_ULPI_EN (1 << 1) /* Wakeup on ULPI event */ +#define GC_WU_IE (1 << 1) /* Wakeup interrupt enable */ + +#define ISIPHYCTRL 0x204 /* NOTE: big endian */ +#define PHYCTRL_PHYE (1 << 4) /* On-chip UTMI PHY enable */ +#define PHYCTRL_BSENH (1 << 3) /* Bit Stuff Enable High */ +#define PHYCTRL_BSEN (1 << 2) /* Bit Stuff Enable */ +#define PHYCTRL_LSFE (1 << 1) /* Line State Filter Enable */ +#define PHYCTRL_PXE (1 << 0) /* PHY oscillator enable */ + +int fsl_usb2_mpc5121_init(struct platform_device *pdev) +{ + struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev); + struct clk *clk; + int err; + + clk = devm_clk_get(pdev->dev.parent, "ipg"); + if (IS_ERR(clk)) { + dev_err(&pdev->dev, "failed to get clk\n"); + return PTR_ERR(clk); + } + err = clk_prepare_enable(clk); + if (err) { + dev_err(&pdev->dev, "failed to enable clk\n"); + return err; + } + pdata->clk = clk; + + if (pdata->phy_mode == FSL_USB2_PHY_UTMI_WIDE) { + u32 reg = 0; + + if (pdata->invert_drvvbus) + reg |= GC_PPP; + + if (pdata->invert_pwr_fault) + reg |= GC_PFP; + + out_be32(pdata->regs + ISIPHYCTRL, PHYCTRL_PHYE | PHYCTRL_PXE); + out_be32(pdata->regs + USBGENCTRL, reg); + } + return 0; +} + +static void fsl_usb2_mpc5121_exit(struct platform_device *pdev) +{ + struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev); + + pdata->regs = NULL; + + if (pdata->clk) + clk_disable_unprepare(pdata->clk); +} + +static struct fsl_usb2_platform_data fsl_usb2_mpc5121_pd = { + .big_endian_desc = 1, + .big_endian_mmio = 1, + .es = 1, + .have_sysif_regs = 0, + .le_setup_buf = 1, + .init = fsl_usb2_mpc5121_init, + .exit = fsl_usb2_mpc5121_exit, +}; +#endif /* CONFIG_PPC_MPC512x */ + +static struct fsl_usb2_platform_data fsl_usb2_mpc8xxx_pd = { + .have_sysif_regs = 1, +}; + +static const struct of_device_id fsl_usb2_mph_dr_of_match[] = { + { .compatible = "fsl-usb2-mph", .data = &fsl_usb2_mpc8xxx_pd, }, + { .compatible = "fsl-usb2-dr", .data = &fsl_usb2_mpc8xxx_pd, }, +#ifdef CONFIG_PPC_MPC512x + { .compatible = "fsl,mpc5121-usb2-dr", .data = &fsl_usb2_mpc5121_pd, }, +#endif + {}, +}; +MODULE_DEVICE_TABLE(of, fsl_usb2_mph_dr_of_match); + +static struct platform_driver fsl_usb2_mph_dr_driver = { + .driver = { + .name = "fsl-usb2-mph-dr", + .of_match_table = fsl_usb2_mph_dr_of_match, + }, + .probe = fsl_usb2_mph_dr_of_probe, + .remove = fsl_usb2_mph_dr_of_remove, +}; + +module_platform_driver(fsl_usb2_mph_dr_driver); + +MODULE_DESCRIPTION("FSL MPH DR OF devices driver"); +MODULE_AUTHOR("Anatolij Gustschin <agust@denx.de>"); +MODULE_LICENSE("GPL"); |