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/clk/ingenic/jz4725b-cgu.c | 273 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 273 insertions(+) create mode 100644 drivers/clk/ingenic/jz4725b-cgu.c (limited to 'drivers/clk/ingenic/jz4725b-cgu.c') diff --git a/drivers/clk/ingenic/jz4725b-cgu.c b/drivers/clk/ingenic/jz4725b-cgu.c new file mode 100644 index 000000000..590e9c85c --- /dev/null +++ b/drivers/clk/ingenic/jz4725b-cgu.c @@ -0,0 +1,273 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Ingenic JZ4725B SoC CGU driver + * + * Copyright (C) 2018 Paul Cercueil + * Author: Paul Cercueil + */ + +#include +#include +#include + +#include + +#include "cgu.h" +#include "pm.h" + +/* CGU register offsets */ +#define CGU_REG_CPCCR 0x00 +#define CGU_REG_LCR 0x04 +#define CGU_REG_CPPCR 0x10 +#define CGU_REG_CLKGR 0x20 +#define CGU_REG_OPCR 0x24 +#define CGU_REG_I2SCDR 0x60 +#define CGU_REG_LPCDR 0x64 +#define CGU_REG_MSCCDR 0x68 +#define CGU_REG_SSICDR 0x74 +#define CGU_REG_CIMCDR 0x78 + +/* bits within the LCR register */ +#define LCR_SLEEP BIT(0) + +static struct ingenic_cgu *cgu; + +static const s8 pll_od_encoding[4] = { + 0x0, 0x1, -1, 0x3, +}; + +static const u8 jz4725b_cgu_cpccr_div_table[] = { + 1, 2, 3, 4, 6, 8, +}; + +static const u8 jz4725b_cgu_pll_half_div_table[] = { + 2, 1, +}; + +static const struct ingenic_cgu_clk_info jz4725b_cgu_clocks[] = { + + /* External clocks */ + + [JZ4725B_CLK_EXT] = { "ext", CGU_CLK_EXT }, + [JZ4725B_CLK_OSC32K] = { "osc32k", CGU_CLK_EXT }, + + [JZ4725B_CLK_PLL] = { + "pll", CGU_CLK_PLL, + .parents = { JZ4725B_CLK_EXT, -1, -1, -1 }, + .pll = { + .reg = CGU_REG_CPPCR, + .rate_multiplier = 1, + .m_shift = 23, + .m_bits = 9, + .m_offset = 2, + .n_shift = 18, + .n_bits = 5, + .n_offset = 2, + .od_shift = 16, + .od_bits = 2, + .od_max = 4, + .od_encoding = pll_od_encoding, + .stable_bit = 10, + .bypass_reg = CGU_REG_CPPCR, + .bypass_bit = 9, + .enable_bit = 8, + }, + }, + + /* Muxes & dividers */ + + [JZ4725B_CLK_PLL_HALF] = { + "pll half", CGU_CLK_DIV, + .parents = { JZ4725B_CLK_PLL, -1, -1, -1 }, + .div = { + CGU_REG_CPCCR, 21, 1, 1, -1, -1, -1, 0, + jz4725b_cgu_pll_half_div_table, + }, + }, + + [JZ4725B_CLK_CCLK] = { + "cclk", CGU_CLK_DIV, + /* + * Disabling the CPU clock or any parent clocks will hang the + * system; mark it critical. + */ + .flags = CLK_IS_CRITICAL, + .parents = { JZ4725B_CLK_PLL, -1, -1, -1 }, + .div = { + CGU_REG_CPCCR, 0, 1, 4, 22, -1, -1, 0, + jz4725b_cgu_cpccr_div_table, + }, + }, + + [JZ4725B_CLK_HCLK] = { + "hclk", CGU_CLK_DIV, + .parents = { JZ4725B_CLK_PLL, -1, -1, -1 }, + .div = { + CGU_REG_CPCCR, 4, 1, 4, 22, -1, -1, 0, + jz4725b_cgu_cpccr_div_table, + }, + }, + + [JZ4725B_CLK_PCLK] = { + "pclk", CGU_CLK_DIV, + .parents = { JZ4725B_CLK_PLL, -1, -1, -1 }, + .div = { + CGU_REG_CPCCR, 8, 1, 4, 22, -1, -1, 0, + jz4725b_cgu_cpccr_div_table, + }, + }, + + [JZ4725B_CLK_MCLK] = { + "mclk", CGU_CLK_DIV, + /* + * Disabling MCLK or its parents will render DRAM + * inaccessible; mark it critical. + */ + .flags = CLK_IS_CRITICAL, + .parents = { JZ4725B_CLK_PLL, -1, -1, -1 }, + .div = { + CGU_REG_CPCCR, 12, 1, 4, 22, -1, -1, 0, + jz4725b_cgu_cpccr_div_table, + }, + }, + + [JZ4725B_CLK_IPU] = { + "ipu", CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4725B_CLK_PLL, -1, -1, -1 }, + .div = { + CGU_REG_CPCCR, 16, 1, 4, 22, -1, -1, 0, + jz4725b_cgu_cpccr_div_table, + }, + .gate = { CGU_REG_CLKGR, 13 }, + }, + + [JZ4725B_CLK_LCD] = { + "lcd", CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4725B_CLK_PLL_HALF, -1, -1, -1 }, + .div = { CGU_REG_LPCDR, 0, 1, 11, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 9 }, + }, + + [JZ4725B_CLK_I2S] = { + "i2s", CGU_CLK_MUX | CGU_CLK_DIV, + .parents = { JZ4725B_CLK_EXT, JZ4725B_CLK_PLL_HALF, -1, -1 }, + .mux = { CGU_REG_CPCCR, 31, 1 }, + .div = { CGU_REG_I2SCDR, 0, 1, 9, -1, -1, -1 }, + }, + + [JZ4725B_CLK_SPI] = { + "spi", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4725B_CLK_EXT, JZ4725B_CLK_PLL, -1, -1 }, + .mux = { CGU_REG_SSICDR, 31, 1 }, + .div = { CGU_REG_SSICDR, 0, 1, 4, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 4 }, + }, + + [JZ4725B_CLK_MMC_MUX] = { + "mmc_mux", CGU_CLK_DIV, + .parents = { JZ4725B_CLK_PLL_HALF, -1, -1, -1 }, + .div = { CGU_REG_MSCCDR, 0, 1, 5, -1, -1, -1 }, + }, + + [JZ4725B_CLK_UDC] = { + "udc", CGU_CLK_MUX | CGU_CLK_DIV, + .parents = { JZ4725B_CLK_EXT, JZ4725B_CLK_PLL_HALF, -1, -1 }, + .mux = { CGU_REG_CPCCR, 29, 1 }, + .div = { CGU_REG_CPCCR, 23, 1, 6, -1, -1, -1 }, + }, + + /* Gate-only clocks */ + + [JZ4725B_CLK_UART] = { + "uart", CGU_CLK_GATE, + .parents = { JZ4725B_CLK_EXT, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 0 }, + }, + + [JZ4725B_CLK_DMA] = { + "dma", CGU_CLK_GATE, + .parents = { JZ4725B_CLK_PCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 12 }, + }, + + [JZ4725B_CLK_ADC] = { + "adc", CGU_CLK_GATE, + .parents = { JZ4725B_CLK_EXT, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 7 }, + }, + + [JZ4725B_CLK_I2C] = { + "i2c", CGU_CLK_GATE, + .parents = { JZ4725B_CLK_EXT, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 3 }, + }, + + [JZ4725B_CLK_AIC] = { + "aic", CGU_CLK_GATE, + .parents = { JZ4725B_CLK_EXT, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 5 }, + }, + + [JZ4725B_CLK_MMC0] = { + "mmc0", CGU_CLK_GATE, + .parents = { JZ4725B_CLK_MMC_MUX, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 6 }, + }, + + [JZ4725B_CLK_MMC1] = { + "mmc1", CGU_CLK_GATE, + .parents = { JZ4725B_CLK_MMC_MUX, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 16 }, + }, + + [JZ4725B_CLK_BCH] = { + "bch", CGU_CLK_GATE, + .parents = { JZ4725B_CLK_MCLK/* not sure */, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 11 }, + }, + + [JZ4725B_CLK_TCU] = { + "tcu", CGU_CLK_GATE, + .parents = { JZ4725B_CLK_EXT/* not sure */, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 1 }, + }, + + [JZ4725B_CLK_EXT512] = { + "ext/512", CGU_CLK_FIXDIV, + .parents = { JZ4725B_CLK_EXT }, + + /* Doc calls it EXT512, but it seems to be /256... */ + .fixdiv = { 256 }, + }, + + [JZ4725B_CLK_RTC] = { + "rtc", CGU_CLK_MUX, + .parents = { JZ4725B_CLK_EXT512, JZ4725B_CLK_OSC32K, -1, -1 }, + .mux = { CGU_REG_OPCR, 2, 1}, + }, + + [JZ4725B_CLK_UDC_PHY] = { + "udc_phy", CGU_CLK_GATE, + .parents = { JZ4725B_CLK_EXT, -1, -1, -1 }, + .gate = { CGU_REG_OPCR, 6, true }, + }, +}; + +static void __init jz4725b_cgu_init(struct device_node *np) +{ + int retval; + + cgu = ingenic_cgu_new(jz4725b_cgu_clocks, + ARRAY_SIZE(jz4725b_cgu_clocks), np); + if (!cgu) { + pr_err("%s: failed to initialise CGU\n", __func__); + return; + } + + retval = ingenic_cgu_register_clocks(cgu); + if (retval) + pr_err("%s: failed to register CGU Clocks\n", __func__); + + ingenic_cgu_register_syscore_ops(cgu); +} +CLK_OF_DECLARE_DRIVER(jz4725b_cgu, "ingenic,jz4725b-cgu", jz4725b_cgu_init); -- cgit v1.2.3