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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/phy/broadcom/phy-bcm63xx-usbh.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
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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/phy/broadcom/phy-bcm63xx-usbh.c')
-rw-r--r--drivers/phy/broadcom/phy-bcm63xx-usbh.c457
1 files changed, 457 insertions, 0 deletions
diff --git a/drivers/phy/broadcom/phy-bcm63xx-usbh.c b/drivers/phy/broadcom/phy-bcm63xx-usbh.c
new file mode 100644
index 000000000..6c05ba8b0
--- /dev/null
+++ b/drivers/phy/broadcom/phy-bcm63xx-usbh.c
@@ -0,0 +1,457 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * BCM6328 USBH PHY Controller Driver
+ *
+ * Copyright (C) 2020 Álvaro Fernández Rojas <noltari@gmail.com>
+ * Copyright (C) 2015 Simon Arlott
+ *
+ * Derived from bcm963xx_4.12L.06B_consumer/kernel/linux/arch/mips/bcm963xx/setup.c:
+ * Copyright (C) 2002 Broadcom Corporation
+ *
+ * Derived from OpenWrt patches:
+ * Copyright (C) 2013 Jonas Gorski <jonas.gorski@gmail.com>
+ * Copyright (C) 2013 Florian Fainelli <f.fainelli@gmail.com>
+ * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
+ */
+
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+
+/* USBH control register offsets */
+enum usbh_regs {
+ USBH_BRT_CONTROL1 = 0,
+ USBH_BRT_CONTROL2,
+ USBH_BRT_STATUS1,
+ USBH_BRT_STATUS2,
+ USBH_UTMI_CONTROL1,
+#define USBH_UC1_DEV_MODE_SEL BIT(0)
+ USBH_TEST_PORT_CONTROL,
+ USBH_PLL_CONTROL1,
+#define USBH_PLLC_REFCLKSEL_SHIFT 0
+#define USBH_PLLC_REFCLKSEL_MASK (0x3 << USBH_PLLC_REFCLKSEL_SHIFT)
+#define USBH_PLLC_CLKSEL_SHIFT 2
+#define USBH_PLLC_CLKSEL_MASK (0x3 << USBH_PLLC_CLKSEL_MASK)
+#define USBH_PLLC_XTAL_PWRDWNB BIT(4)
+#define USBH_PLLC_PLL_PWRDWNB BIT(5)
+#define USBH_PLLC_PLL_CALEN BIT(6)
+#define USBH_PLLC_PHYPLL_BYP BIT(7)
+#define USBH_PLLC_PLL_RESET BIT(8)
+#define USBH_PLLC_PLL_IDDQ_PWRDN BIT(9)
+#define USBH_PLLC_PLL_PWRDN_DELAY BIT(10)
+#define USBH_6318_PLLC_PLL_SUSPEND_EN BIT(27)
+#define USBH_6318_PLLC_PHYPLL_BYP BIT(29)
+#define USBH_6318_PLLC_PLL_RESET BIT(30)
+#define USBH_6318_PLLC_PLL_IDDQ_PWRDN BIT(31)
+ USBH_SWAP_CONTROL,
+#define USBH_SC_OHCI_DATA_SWAP BIT(0)
+#define USBH_SC_OHCI_ENDIAN_SWAP BIT(1)
+#define USBH_SC_OHCI_LOGICAL_ADDR_EN BIT(2)
+#define USBH_SC_EHCI_DATA_SWAP BIT(3)
+#define USBH_SC_EHCI_ENDIAN_SWAP BIT(4)
+#define USBH_SC_EHCI_LOGICAL_ADDR_EN BIT(5)
+#define USBH_SC_USB_DEVICE_SEL BIT(6)
+ USBH_GENERIC_CONTROL,
+#define USBH_GC_PLL_SUSPEND_EN BIT(1)
+ USBH_FRAME_ADJUST_VALUE,
+ USBH_SETUP,
+#define USBH_S_IOC BIT(4)
+#define USBH_S_IPP BIT(5)
+ USBH_MDIO,
+ USBH_MDIO32,
+ USBH_USB_SIM_CONTROL,
+#define USBH_USC_LADDR_SEL BIT(5)
+
+ __USBH_ENUM_SIZE
+};
+
+struct bcm63xx_usbh_phy_variant {
+ /* Registers */
+ long regs[__USBH_ENUM_SIZE];
+
+ /* PLLC bits to set/clear for power on */
+ u32 power_pllc_clr;
+ u32 power_pllc_set;
+
+ /* Setup bits to set/clear for power on */
+ u32 setup_clr;
+ u32 setup_set;
+
+ /* Swap Control bits to set */
+ u32 swapctl_dev_set;
+
+ /* Test Port Control value to set if non-zero */
+ u32 tpc_val;
+
+ /* USB Sim Control bits to set */
+ u32 usc_set;
+
+ /* UTMI Control 1 bits to set */
+ u32 utmictl1_dev_set;
+};
+
+struct bcm63xx_usbh_phy {
+ void __iomem *base;
+ struct clk *usbh_clk;
+ struct clk *usb_ref_clk;
+ struct reset_control *reset;
+ const struct bcm63xx_usbh_phy_variant *variant;
+ bool device_mode;
+};
+
+static const struct bcm63xx_usbh_phy_variant usbh_bcm6318 = {
+ .regs = {
+ [USBH_BRT_CONTROL1] = -1,
+ [USBH_BRT_CONTROL2] = -1,
+ [USBH_BRT_STATUS1] = -1,
+ [USBH_BRT_STATUS2] = -1,
+ [USBH_UTMI_CONTROL1] = 0x2c,
+ [USBH_TEST_PORT_CONTROL] = 0x1c,
+ [USBH_PLL_CONTROL1] = 0x04,
+ [USBH_SWAP_CONTROL] = 0x0c,
+ [USBH_GENERIC_CONTROL] = -1,
+ [USBH_FRAME_ADJUST_VALUE] = 0x08,
+ [USBH_SETUP] = 0x00,
+ [USBH_MDIO] = 0x14,
+ [USBH_MDIO32] = 0x18,
+ [USBH_USB_SIM_CONTROL] = 0x20,
+ },
+ .power_pllc_clr = USBH_6318_PLLC_PLL_IDDQ_PWRDN,
+ .power_pllc_set = USBH_6318_PLLC_PLL_SUSPEND_EN,
+ .setup_set = USBH_S_IOC,
+ .swapctl_dev_set = USBH_SC_USB_DEVICE_SEL,
+ .usc_set = USBH_USC_LADDR_SEL,
+ .utmictl1_dev_set = USBH_UC1_DEV_MODE_SEL,
+};
+
+static const struct bcm63xx_usbh_phy_variant usbh_bcm6328 = {
+ .regs = {
+ [USBH_BRT_CONTROL1] = 0x00,
+ [USBH_BRT_CONTROL2] = 0x04,
+ [USBH_BRT_STATUS1] = 0x08,
+ [USBH_BRT_STATUS2] = 0x0c,
+ [USBH_UTMI_CONTROL1] = 0x10,
+ [USBH_TEST_PORT_CONTROL] = 0x14,
+ [USBH_PLL_CONTROL1] = 0x18,
+ [USBH_SWAP_CONTROL] = 0x1c,
+ [USBH_GENERIC_CONTROL] = 0x20,
+ [USBH_FRAME_ADJUST_VALUE] = 0x24,
+ [USBH_SETUP] = 0x28,
+ [USBH_MDIO] = 0x2c,
+ [USBH_MDIO32] = 0x30,
+ [USBH_USB_SIM_CONTROL] = 0x34,
+ },
+ .setup_set = USBH_S_IOC,
+ .swapctl_dev_set = USBH_SC_USB_DEVICE_SEL,
+ .utmictl1_dev_set = USBH_UC1_DEV_MODE_SEL,
+};
+
+static const struct bcm63xx_usbh_phy_variant usbh_bcm6358 = {
+ .regs = {
+ [USBH_BRT_CONTROL1] = -1,
+ [USBH_BRT_CONTROL2] = -1,
+ [USBH_BRT_STATUS1] = -1,
+ [USBH_BRT_STATUS2] = -1,
+ [USBH_UTMI_CONTROL1] = -1,
+ [USBH_TEST_PORT_CONTROL] = 0x24,
+ [USBH_PLL_CONTROL1] = -1,
+ [USBH_SWAP_CONTROL] = 0x00,
+ [USBH_GENERIC_CONTROL] = -1,
+ [USBH_FRAME_ADJUST_VALUE] = -1,
+ [USBH_SETUP] = -1,
+ [USBH_MDIO] = -1,
+ [USBH_MDIO32] = -1,
+ [USBH_USB_SIM_CONTROL] = -1,
+ },
+ /*
+ * The magic value comes for the original vendor BSP
+ * and is needed for USB to work. Datasheet does not
+ * help, so the magic value is used as-is.
+ */
+ .tpc_val = 0x1c0020,
+};
+
+static const struct bcm63xx_usbh_phy_variant usbh_bcm6368 = {
+ .regs = {
+ [USBH_BRT_CONTROL1] = 0x00,
+ [USBH_BRT_CONTROL2] = 0x04,
+ [USBH_BRT_STATUS1] = 0x08,
+ [USBH_BRT_STATUS2] = 0x0c,
+ [USBH_UTMI_CONTROL1] = 0x10,
+ [USBH_TEST_PORT_CONTROL] = 0x14,
+ [USBH_PLL_CONTROL1] = 0x18,
+ [USBH_SWAP_CONTROL] = 0x1c,
+ [USBH_GENERIC_CONTROL] = -1,
+ [USBH_FRAME_ADJUST_VALUE] = 0x24,
+ [USBH_SETUP] = 0x28,
+ [USBH_MDIO] = 0x2c,
+ [USBH_MDIO32] = 0x30,
+ [USBH_USB_SIM_CONTROL] = 0x34,
+ },
+ .power_pllc_clr = USBH_PLLC_PLL_IDDQ_PWRDN | USBH_PLLC_PLL_PWRDN_DELAY,
+ .setup_set = USBH_S_IOC,
+ .swapctl_dev_set = USBH_SC_USB_DEVICE_SEL,
+ .utmictl1_dev_set = USBH_UC1_DEV_MODE_SEL,
+};
+
+static const struct bcm63xx_usbh_phy_variant usbh_bcm63268 = {
+ .regs = {
+ [USBH_BRT_CONTROL1] = 0x00,
+ [USBH_BRT_CONTROL2] = 0x04,
+ [USBH_BRT_STATUS1] = 0x08,
+ [USBH_BRT_STATUS2] = 0x0c,
+ [USBH_UTMI_CONTROL1] = 0x10,
+ [USBH_TEST_PORT_CONTROL] = 0x14,
+ [USBH_PLL_CONTROL1] = 0x18,
+ [USBH_SWAP_CONTROL] = 0x1c,
+ [USBH_GENERIC_CONTROL] = 0x20,
+ [USBH_FRAME_ADJUST_VALUE] = 0x24,
+ [USBH_SETUP] = 0x28,
+ [USBH_MDIO] = 0x2c,
+ [USBH_MDIO32] = 0x30,
+ [USBH_USB_SIM_CONTROL] = 0x34,
+ },
+ .power_pllc_clr = USBH_PLLC_PLL_IDDQ_PWRDN | USBH_PLLC_PLL_PWRDN_DELAY,
+ .setup_clr = USBH_S_IPP,
+ .setup_set = USBH_S_IOC,
+ .swapctl_dev_set = USBH_SC_USB_DEVICE_SEL,
+ .utmictl1_dev_set = USBH_UC1_DEV_MODE_SEL,
+};
+
+static inline bool usbh_has_reg(struct bcm63xx_usbh_phy *usbh, int reg)
+{
+ return (usbh->variant->regs[reg] >= 0);
+}
+
+static inline u32 usbh_readl(struct bcm63xx_usbh_phy *usbh, int reg)
+{
+ return __raw_readl(usbh->base + usbh->variant->regs[reg]);
+}
+
+static inline void usbh_writel(struct bcm63xx_usbh_phy *usbh, int reg,
+ u32 value)
+{
+ __raw_writel(value, usbh->base + usbh->variant->regs[reg]);
+}
+
+static int bcm63xx_usbh_phy_init(struct phy *phy)
+{
+ struct bcm63xx_usbh_phy *usbh = phy_get_drvdata(phy);
+ int ret;
+
+ ret = clk_prepare_enable(usbh->usbh_clk);
+ if (ret) {
+ dev_err(&phy->dev, "unable to enable usbh clock: %d\n", ret);
+ return ret;
+ }
+
+ ret = clk_prepare_enable(usbh->usb_ref_clk);
+ if (ret) {
+ dev_err(&phy->dev, "unable to enable usb_ref clock: %d\n", ret);
+ clk_disable_unprepare(usbh->usbh_clk);
+ return ret;
+ }
+
+ ret = reset_control_reset(usbh->reset);
+ if (ret) {
+ dev_err(&phy->dev, "unable to reset device: %d\n", ret);
+ clk_disable_unprepare(usbh->usb_ref_clk);
+ clk_disable_unprepare(usbh->usbh_clk);
+ return ret;
+ }
+
+ /* Configure to work in native CPU endian */
+ if (usbh_has_reg(usbh, USBH_SWAP_CONTROL)) {
+ u32 val = usbh_readl(usbh, USBH_SWAP_CONTROL);
+
+ val |= USBH_SC_EHCI_DATA_SWAP;
+ val &= ~USBH_SC_EHCI_ENDIAN_SWAP;
+
+ val |= USBH_SC_OHCI_DATA_SWAP;
+ val &= ~USBH_SC_OHCI_ENDIAN_SWAP;
+
+ if (usbh->device_mode && usbh->variant->swapctl_dev_set)
+ val |= usbh->variant->swapctl_dev_set;
+
+ usbh_writel(usbh, USBH_SWAP_CONTROL, val);
+ }
+
+ if (usbh_has_reg(usbh, USBH_SETUP)) {
+ u32 val = usbh_readl(usbh, USBH_SETUP);
+
+ val |= usbh->variant->setup_set;
+ val &= ~usbh->variant->setup_clr;
+
+ usbh_writel(usbh, USBH_SETUP, val);
+ }
+
+ if (usbh_has_reg(usbh, USBH_USB_SIM_CONTROL)) {
+ u32 val = usbh_readl(usbh, USBH_USB_SIM_CONTROL);
+
+ val |= usbh->variant->usc_set;
+
+ usbh_writel(usbh, USBH_USB_SIM_CONTROL, val);
+ }
+
+ if (usbh->variant->tpc_val &&
+ usbh_has_reg(usbh, USBH_TEST_PORT_CONTROL))
+ usbh_writel(usbh, USBH_TEST_PORT_CONTROL,
+ usbh->variant->tpc_val);
+
+ if (usbh->device_mode &&
+ usbh_has_reg(usbh, USBH_UTMI_CONTROL1) &&
+ usbh->variant->utmictl1_dev_set) {
+ u32 val = usbh_readl(usbh, USBH_UTMI_CONTROL1);
+
+ val |= usbh->variant->utmictl1_dev_set;
+
+ usbh_writel(usbh, USBH_UTMI_CONTROL1, val);
+ }
+
+ return 0;
+}
+
+static int bcm63xx_usbh_phy_power_on(struct phy *phy)
+{
+ struct bcm63xx_usbh_phy *usbh = phy_get_drvdata(phy);
+
+ if (usbh_has_reg(usbh, USBH_PLL_CONTROL1)) {
+ u32 val = usbh_readl(usbh, USBH_PLL_CONTROL1);
+
+ val |= usbh->variant->power_pllc_set;
+ val &= ~usbh->variant->power_pllc_clr;
+
+ usbh_writel(usbh, USBH_PLL_CONTROL1, val);
+ }
+
+ return 0;
+}
+
+static int bcm63xx_usbh_phy_power_off(struct phy *phy)
+{
+ struct bcm63xx_usbh_phy *usbh = phy_get_drvdata(phy);
+
+ if (usbh_has_reg(usbh, USBH_PLL_CONTROL1)) {
+ u32 val = usbh_readl(usbh, USBH_PLL_CONTROL1);
+
+ val &= ~usbh->variant->power_pllc_set;
+ val |= usbh->variant->power_pllc_clr;
+
+ usbh_writel(usbh, USBH_PLL_CONTROL1, val);
+ }
+
+ return 0;
+}
+
+static int bcm63xx_usbh_phy_exit(struct phy *phy)
+{
+ struct bcm63xx_usbh_phy *usbh = phy_get_drvdata(phy);
+
+ clk_disable_unprepare(usbh->usbh_clk);
+ clk_disable_unprepare(usbh->usb_ref_clk);
+
+ return 0;
+}
+
+static const struct phy_ops bcm63xx_usbh_phy_ops = {
+ .exit = bcm63xx_usbh_phy_exit,
+ .init = bcm63xx_usbh_phy_init,
+ .power_off = bcm63xx_usbh_phy_power_off,
+ .power_on = bcm63xx_usbh_phy_power_on,
+ .owner = THIS_MODULE,
+};
+
+static struct phy *bcm63xx_usbh_phy_xlate(struct device *dev,
+ struct of_phandle_args *args)
+{
+ struct bcm63xx_usbh_phy *usbh = dev_get_drvdata(dev);
+
+ usbh->device_mode = !!args->args[0];
+
+ return of_phy_simple_xlate(dev, args);
+}
+
+static int __init bcm63xx_usbh_phy_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct bcm63xx_usbh_phy *usbh;
+ const struct bcm63xx_usbh_phy_variant *variant;
+ struct phy *phy;
+ struct phy_provider *phy_provider;
+
+ usbh = devm_kzalloc(dev, sizeof(*usbh), GFP_KERNEL);
+ if (!usbh)
+ return -ENOMEM;
+
+ variant = device_get_match_data(dev);
+ if (!variant)
+ return -EINVAL;
+ usbh->variant = variant;
+
+ usbh->base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(usbh->base))
+ return PTR_ERR(usbh->base);
+
+ usbh->reset = devm_reset_control_get_exclusive(dev, NULL);
+ if (IS_ERR(usbh->reset)) {
+ if (PTR_ERR(usbh->reset) != -EPROBE_DEFER)
+ dev_err(dev, "failed to get reset\n");
+ return PTR_ERR(usbh->reset);
+ }
+
+ usbh->usbh_clk = devm_clk_get_optional(dev, "usbh");
+ if (IS_ERR(usbh->usbh_clk))
+ return PTR_ERR(usbh->usbh_clk);
+
+ usbh->usb_ref_clk = devm_clk_get_optional(dev, "usb_ref");
+ if (IS_ERR(usbh->usb_ref_clk))
+ return PTR_ERR(usbh->usb_ref_clk);
+
+ phy = devm_phy_create(dev, NULL, &bcm63xx_usbh_phy_ops);
+ if (IS_ERR(phy)) {
+ dev_err(dev, "failed to create PHY\n");
+ return PTR_ERR(phy);
+ }
+
+ platform_set_drvdata(pdev, usbh);
+ phy_set_drvdata(phy, usbh);
+
+ phy_provider = devm_of_phy_provider_register(dev,
+ bcm63xx_usbh_phy_xlate);
+ if (IS_ERR(phy_provider)) {
+ dev_err(dev, "failed to register PHY provider\n");
+ return PTR_ERR(phy_provider);
+ }
+
+ dev_dbg(dev, "Registered BCM63xx USB PHY driver\n");
+
+ return 0;
+}
+
+static const struct of_device_id bcm63xx_usbh_phy_ids[] __initconst = {
+ { .compatible = "brcm,bcm6318-usbh-phy", .data = &usbh_bcm6318 },
+ { .compatible = "brcm,bcm6328-usbh-phy", .data = &usbh_bcm6328 },
+ { .compatible = "brcm,bcm6358-usbh-phy", .data = &usbh_bcm6358 },
+ { .compatible = "brcm,bcm6362-usbh-phy", .data = &usbh_bcm6368 },
+ { .compatible = "brcm,bcm6368-usbh-phy", .data = &usbh_bcm6368 },
+ { .compatible = "brcm,bcm63268-usbh-phy", .data = &usbh_bcm63268 },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, bcm63xx_usbh_phy_ids);
+
+static struct platform_driver bcm63xx_usbh_phy_driver __refdata = {
+ .driver = {
+ .name = "bcm63xx-usbh-phy",
+ .of_match_table = bcm63xx_usbh_phy_ids,
+ },
+ .probe = bcm63xx_usbh_phy_probe,
+};
+module_platform_driver(bcm63xx_usbh_phy_driver);
+
+MODULE_DESCRIPTION("BCM63xx USBH PHY driver");
+MODULE_AUTHOR("Álvaro Fernández Rojas <noltari@gmail.com>");
+MODULE_AUTHOR("Simon Arlott");
+MODULE_LICENSE("GPL");