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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/clk/meson/axg-aoclk.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/clk/meson/axg-aoclk.c')
-rw-r--r--drivers/clk/meson/axg-aoclk.c341
1 files changed, 341 insertions, 0 deletions
diff --git a/drivers/clk/meson/axg-aoclk.c b/drivers/clk/meson/axg-aoclk.c
new file mode 100644
index 000000000..af6db437b
--- /dev/null
+++ b/drivers/clk/meson/axg-aoclk.c
@@ -0,0 +1,341 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Amlogic Meson-AXG Clock Controller Driver
+ *
+ * Copyright (c) 2016 Baylibre SAS.
+ * Author: Michael Turquette <mturquette@baylibre.com>
+ *
+ * Copyright (c) 2018 Amlogic, inc.
+ * Author: Qiufang Dai <qiufang.dai@amlogic.com>
+ */
+#include <linux/clk-provider.h>
+#include <linux/platform_device.h>
+#include <linux/reset-controller.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include "meson-aoclk.h"
+#include "axg-aoclk.h"
+
+#include "clk-regmap.h"
+#include "clk-dualdiv.h"
+
+/*
+ * AO Configuration Clock registers offsets
+ * Register offsets from the data sheet must be multiplied by 4.
+ */
+#define AO_RTI_PWR_CNTL_REG1 0x0C
+#define AO_RTI_PWR_CNTL_REG0 0x10
+#define AO_RTI_GEN_CNTL_REG0 0x40
+#define AO_OSCIN_CNTL 0x58
+#define AO_CRT_CLK_CNTL1 0x68
+#define AO_SAR_CLK 0x90
+#define AO_RTC_ALT_CLK_CNTL0 0x94
+#define AO_RTC_ALT_CLK_CNTL1 0x98
+
+#define AXG_AO_GATE(_name, _bit) \
+static struct clk_regmap axg_aoclk_##_name = { \
+ .data = &(struct clk_regmap_gate_data) { \
+ .offset = (AO_RTI_GEN_CNTL_REG0), \
+ .bit_idx = (_bit), \
+ }, \
+ .hw.init = &(struct clk_init_data) { \
+ .name = "axg_ao_" #_name, \
+ .ops = &clk_regmap_gate_ops, \
+ .parent_data = &(const struct clk_parent_data) { \
+ .fw_name = "mpeg-clk", \
+ }, \
+ .num_parents = 1, \
+ .flags = CLK_IGNORE_UNUSED, \
+ }, \
+}
+
+AXG_AO_GATE(remote, 0);
+AXG_AO_GATE(i2c_master, 1);
+AXG_AO_GATE(i2c_slave, 2);
+AXG_AO_GATE(uart1, 3);
+AXG_AO_GATE(uart2, 5);
+AXG_AO_GATE(ir_blaster, 6);
+AXG_AO_GATE(saradc, 7);
+
+static struct clk_regmap axg_aoclk_cts_oscin = {
+ .data = &(struct clk_regmap_gate_data){
+ .offset = AO_RTI_PWR_CNTL_REG0,
+ .bit_idx = 14,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "cts_oscin",
+ .ops = &clk_regmap_gate_ro_ops,
+ .parent_data = &(const struct clk_parent_data) {
+ .fw_name = "xtal",
+ },
+ .num_parents = 1,
+ },
+};
+
+static struct clk_regmap axg_aoclk_32k_pre = {
+ .data = &(struct clk_regmap_gate_data){
+ .offset = AO_RTC_ALT_CLK_CNTL0,
+ .bit_idx = 31,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "axg_ao_32k_pre",
+ .ops = &clk_regmap_gate_ops,
+ .parent_hws = (const struct clk_hw *[]) {
+ &axg_aoclk_cts_oscin.hw
+ },
+ .num_parents = 1,
+ },
+};
+
+static const struct meson_clk_dualdiv_param axg_32k_div_table[] = {
+ {
+ .dual = 1,
+ .n1 = 733,
+ .m1 = 8,
+ .n2 = 732,
+ .m2 = 11,
+ }, {}
+};
+
+static struct clk_regmap axg_aoclk_32k_div = {
+ .data = &(struct meson_clk_dualdiv_data){
+ .n1 = {
+ .reg_off = AO_RTC_ALT_CLK_CNTL0,
+ .shift = 0,
+ .width = 12,
+ },
+ .n2 = {
+ .reg_off = AO_RTC_ALT_CLK_CNTL0,
+ .shift = 12,
+ .width = 12,
+ },
+ .m1 = {
+ .reg_off = AO_RTC_ALT_CLK_CNTL1,
+ .shift = 0,
+ .width = 12,
+ },
+ .m2 = {
+ .reg_off = AO_RTC_ALT_CLK_CNTL1,
+ .shift = 12,
+ .width = 12,
+ },
+ .dual = {
+ .reg_off = AO_RTC_ALT_CLK_CNTL0,
+ .shift = 28,
+ .width = 1,
+ },
+ .table = axg_32k_div_table,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "axg_ao_32k_div",
+ .ops = &meson_clk_dualdiv_ops,
+ .parent_hws = (const struct clk_hw *[]) {
+ &axg_aoclk_32k_pre.hw
+ },
+ .num_parents = 1,
+ },
+};
+
+static struct clk_regmap axg_aoclk_32k_sel = {
+ .data = &(struct clk_regmap_mux_data) {
+ .offset = AO_RTC_ALT_CLK_CNTL1,
+ .mask = 0x1,
+ .shift = 24,
+ .flags = CLK_MUX_ROUND_CLOSEST,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "axg_ao_32k_sel",
+ .ops = &clk_regmap_mux_ops,
+ .parent_hws = (const struct clk_hw *[]) {
+ &axg_aoclk_32k_div.hw,
+ &axg_aoclk_32k_pre.hw,
+ },
+ .num_parents = 2,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+static struct clk_regmap axg_aoclk_32k = {
+ .data = &(struct clk_regmap_gate_data){
+ .offset = AO_RTC_ALT_CLK_CNTL0,
+ .bit_idx = 30,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "axg_ao_32k",
+ .ops = &clk_regmap_gate_ops,
+ .parent_hws = (const struct clk_hw *[]) {
+ &axg_aoclk_32k_sel.hw
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+static struct clk_regmap axg_aoclk_cts_rtc_oscin = {
+ .data = &(struct clk_regmap_mux_data) {
+ .offset = AO_RTI_PWR_CNTL_REG0,
+ .mask = 0x1,
+ .shift = 10,
+ .flags = CLK_MUX_ROUND_CLOSEST,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "axg_ao_cts_rtc_oscin",
+ .ops = &clk_regmap_mux_ops,
+ .parent_data = (const struct clk_parent_data []) {
+ { .hw = &axg_aoclk_32k.hw },
+ { .fw_name = "ext_32k-0", },
+ },
+ .num_parents = 2,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+static struct clk_regmap axg_aoclk_clk81 = {
+ .data = &(struct clk_regmap_mux_data) {
+ .offset = AO_RTI_PWR_CNTL_REG0,
+ .mask = 0x1,
+ .shift = 8,
+ .flags = CLK_MUX_ROUND_CLOSEST,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "axg_ao_clk81",
+ .ops = &clk_regmap_mux_ro_ops,
+ .parent_data = (const struct clk_parent_data []) {
+ { .fw_name = "mpeg-clk", },
+ { .hw = &axg_aoclk_cts_rtc_oscin.hw },
+ },
+ .num_parents = 2,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+static struct clk_regmap axg_aoclk_saradc_mux = {
+ .data = &(struct clk_regmap_mux_data) {
+ .offset = AO_SAR_CLK,
+ .mask = 0x3,
+ .shift = 9,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "axg_ao_saradc_mux",
+ .ops = &clk_regmap_mux_ops,
+ .parent_data = (const struct clk_parent_data []) {
+ { .fw_name = "xtal", },
+ { .hw = &axg_aoclk_clk81.hw },
+ },
+ .num_parents = 2,
+ },
+};
+
+static struct clk_regmap axg_aoclk_saradc_div = {
+ .data = &(struct clk_regmap_div_data) {
+ .offset = AO_SAR_CLK,
+ .shift = 0,
+ .width = 8,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "axg_ao_saradc_div",
+ .ops = &clk_regmap_divider_ops,
+ .parent_hws = (const struct clk_hw *[]) {
+ &axg_aoclk_saradc_mux.hw
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+static struct clk_regmap axg_aoclk_saradc_gate = {
+ .data = &(struct clk_regmap_gate_data) {
+ .offset = AO_SAR_CLK,
+ .bit_idx = 8,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "axg_ao_saradc_gate",
+ .ops = &clk_regmap_gate_ops,
+ .parent_hws = (const struct clk_hw *[]) {
+ &axg_aoclk_saradc_div.hw
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+static const unsigned int axg_aoclk_reset[] = {
+ [RESET_AO_REMOTE] = 16,
+ [RESET_AO_I2C_MASTER] = 18,
+ [RESET_AO_I2C_SLAVE] = 19,
+ [RESET_AO_UART1] = 17,
+ [RESET_AO_UART2] = 22,
+ [RESET_AO_IR_BLASTER] = 23,
+};
+
+static struct clk_regmap *axg_aoclk_regmap[] = {
+ &axg_aoclk_remote,
+ &axg_aoclk_i2c_master,
+ &axg_aoclk_i2c_slave,
+ &axg_aoclk_uart1,
+ &axg_aoclk_uart2,
+ &axg_aoclk_ir_blaster,
+ &axg_aoclk_saradc,
+ &axg_aoclk_cts_oscin,
+ &axg_aoclk_32k_pre,
+ &axg_aoclk_32k_div,
+ &axg_aoclk_32k_sel,
+ &axg_aoclk_32k,
+ &axg_aoclk_cts_rtc_oscin,
+ &axg_aoclk_clk81,
+ &axg_aoclk_saradc_mux,
+ &axg_aoclk_saradc_div,
+ &axg_aoclk_saradc_gate,
+};
+
+static const struct clk_hw_onecell_data axg_aoclk_onecell_data = {
+ .hws = {
+ [CLKID_AO_REMOTE] = &axg_aoclk_remote.hw,
+ [CLKID_AO_I2C_MASTER] = &axg_aoclk_i2c_master.hw,
+ [CLKID_AO_I2C_SLAVE] = &axg_aoclk_i2c_slave.hw,
+ [CLKID_AO_UART1] = &axg_aoclk_uart1.hw,
+ [CLKID_AO_UART2] = &axg_aoclk_uart2.hw,
+ [CLKID_AO_IR_BLASTER] = &axg_aoclk_ir_blaster.hw,
+ [CLKID_AO_SAR_ADC] = &axg_aoclk_saradc.hw,
+ [CLKID_AO_CLK81] = &axg_aoclk_clk81.hw,
+ [CLKID_AO_SAR_ADC_SEL] = &axg_aoclk_saradc_mux.hw,
+ [CLKID_AO_SAR_ADC_DIV] = &axg_aoclk_saradc_div.hw,
+ [CLKID_AO_SAR_ADC_CLK] = &axg_aoclk_saradc_gate.hw,
+ [CLKID_AO_CTS_OSCIN] = &axg_aoclk_cts_oscin.hw,
+ [CLKID_AO_32K_PRE] = &axg_aoclk_32k_pre.hw,
+ [CLKID_AO_32K_DIV] = &axg_aoclk_32k_div.hw,
+ [CLKID_AO_32K_SEL] = &axg_aoclk_32k_sel.hw,
+ [CLKID_AO_32K] = &axg_aoclk_32k.hw,
+ [CLKID_AO_CTS_RTC_OSCIN] = &axg_aoclk_cts_rtc_oscin.hw,
+ },
+ .num = NR_CLKS,
+};
+
+static const struct meson_aoclk_data axg_aoclkc_data = {
+ .reset_reg = AO_RTI_GEN_CNTL_REG0,
+ .num_reset = ARRAY_SIZE(axg_aoclk_reset),
+ .reset = axg_aoclk_reset,
+ .num_clks = ARRAY_SIZE(axg_aoclk_regmap),
+ .clks = axg_aoclk_regmap,
+ .hw_data = &axg_aoclk_onecell_data,
+};
+
+static const struct of_device_id axg_aoclkc_match_table[] = {
+ {
+ .compatible = "amlogic,meson-axg-aoclkc",
+ .data = &axg_aoclkc_data,
+ },
+ { }
+};
+MODULE_DEVICE_TABLE(of, axg_aoclkc_match_table);
+
+static struct platform_driver axg_aoclkc_driver = {
+ .probe = meson_aoclkc_probe,
+ .driver = {
+ .name = "axg-aoclkc",
+ .of_match_table = axg_aoclkc_match_table,
+ },
+};
+
+module_platform_driver(axg_aoclkc_driver);
+MODULE_LICENSE("GPL v2");