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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/pinctrl/spear/pinctrl-spear310.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/pinctrl/spear/pinctrl-spear310.c')
-rw-r--r--drivers/pinctrl/spear/pinctrl-spear310.c408
1 files changed, 408 insertions, 0 deletions
diff --git a/drivers/pinctrl/spear/pinctrl-spear310.c b/drivers/pinctrl/spear/pinctrl-spear310.c
new file mode 100644
index 000000000..9d9facc4a
--- /dev/null
+++ b/drivers/pinctrl/spear/pinctrl-spear310.c
@@ -0,0 +1,408 @@
+/*
+ * Driver for the ST Microelectronics SPEAr310 pinmux
+ *
+ * Copyright (C) 2012 ST Microelectronics
+ * Viresh Kumar <vireshk@kernel.org>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include "pinctrl-spear3xx.h"
+
+#define DRIVER_NAME "spear310-pinmux"
+
+/* addresses */
+#define PMX_CONFIG_REG 0x08
+
+/* emi_cs_0_to_5_pins */
+static const unsigned emi_cs_0_to_5_pins[] = { 45, 46, 47, 48, 49, 50 };
+static struct spear_muxreg emi_cs_0_to_5_muxreg[] = {
+ {
+ .reg = PMX_CONFIG_REG,
+ .mask = PMX_TIMER_0_1_MASK | PMX_TIMER_2_3_MASK,
+ .val = 0,
+ },
+};
+
+static struct spear_modemux emi_cs_0_to_5_modemux[] = {
+ {
+ .muxregs = emi_cs_0_to_5_muxreg,
+ .nmuxregs = ARRAY_SIZE(emi_cs_0_to_5_muxreg),
+ },
+};
+
+static struct spear_pingroup emi_cs_0_to_5_pingroup = {
+ .name = "emi_cs_0_to_5_grp",
+ .pins = emi_cs_0_to_5_pins,
+ .npins = ARRAY_SIZE(emi_cs_0_to_5_pins),
+ .modemuxs = emi_cs_0_to_5_modemux,
+ .nmodemuxs = ARRAY_SIZE(emi_cs_0_to_5_modemux),
+};
+
+static const char *const emi_cs_0_to_5_grps[] = { "emi_cs_0_to_5_grp" };
+static struct spear_function emi_cs_0_to_5_function = {
+ .name = "emi",
+ .groups = emi_cs_0_to_5_grps,
+ .ngroups = ARRAY_SIZE(emi_cs_0_to_5_grps),
+};
+
+/* uart1_pins */
+static const unsigned uart1_pins[] = { 0, 1 };
+static struct spear_muxreg uart1_muxreg[] = {
+ {
+ .reg = PMX_CONFIG_REG,
+ .mask = PMX_FIRDA_MASK,
+ .val = 0,
+ },
+};
+
+static struct spear_modemux uart1_modemux[] = {
+ {
+ .muxregs = uart1_muxreg,
+ .nmuxregs = ARRAY_SIZE(uart1_muxreg),
+ },
+};
+
+static struct spear_pingroup uart1_pingroup = {
+ .name = "uart1_grp",
+ .pins = uart1_pins,
+ .npins = ARRAY_SIZE(uart1_pins),
+ .modemuxs = uart1_modemux,
+ .nmodemuxs = ARRAY_SIZE(uart1_modemux),
+};
+
+static const char *const uart1_grps[] = { "uart1_grp" };
+static struct spear_function uart1_function = {
+ .name = "uart1",
+ .groups = uart1_grps,
+ .ngroups = ARRAY_SIZE(uart1_grps),
+};
+
+/* uart2_pins */
+static const unsigned uart2_pins[] = { 43, 44 };
+static struct spear_muxreg uart2_muxreg[] = {
+ {
+ .reg = PMX_CONFIG_REG,
+ .mask = PMX_TIMER_0_1_MASK,
+ .val = 0,
+ },
+};
+
+static struct spear_modemux uart2_modemux[] = {
+ {
+ .muxregs = uart2_muxreg,
+ .nmuxregs = ARRAY_SIZE(uart2_muxreg),
+ },
+};
+
+static struct spear_pingroup uart2_pingroup = {
+ .name = "uart2_grp",
+ .pins = uart2_pins,
+ .npins = ARRAY_SIZE(uart2_pins),
+ .modemuxs = uart2_modemux,
+ .nmodemuxs = ARRAY_SIZE(uart2_modemux),
+};
+
+static const char *const uart2_grps[] = { "uart2_grp" };
+static struct spear_function uart2_function = {
+ .name = "uart2",
+ .groups = uart2_grps,
+ .ngroups = ARRAY_SIZE(uart2_grps),
+};
+
+/* uart3_pins */
+static const unsigned uart3_pins[] = { 37, 38 };
+static struct spear_muxreg uart3_muxreg[] = {
+ {
+ .reg = PMX_CONFIG_REG,
+ .mask = PMX_UART0_MODEM_MASK,
+ .val = 0,
+ },
+};
+
+static struct spear_modemux uart3_modemux[] = {
+ {
+ .muxregs = uart3_muxreg,
+ .nmuxregs = ARRAY_SIZE(uart3_muxreg),
+ },
+};
+
+static struct spear_pingroup uart3_pingroup = {
+ .name = "uart3_grp",
+ .pins = uart3_pins,
+ .npins = ARRAY_SIZE(uart3_pins),
+ .modemuxs = uart3_modemux,
+ .nmodemuxs = ARRAY_SIZE(uart3_modemux),
+};
+
+static const char *const uart3_grps[] = { "uart3_grp" };
+static struct spear_function uart3_function = {
+ .name = "uart3",
+ .groups = uart3_grps,
+ .ngroups = ARRAY_SIZE(uart3_grps),
+};
+
+/* uart4_pins */
+static const unsigned uart4_pins[] = { 39, 40 };
+static struct spear_muxreg uart4_muxreg[] = {
+ {
+ .reg = PMX_CONFIG_REG,
+ .mask = PMX_UART0_MODEM_MASK,
+ .val = 0,
+ },
+};
+
+static struct spear_modemux uart4_modemux[] = {
+ {
+ .muxregs = uart4_muxreg,
+ .nmuxregs = ARRAY_SIZE(uart4_muxreg),
+ },
+};
+
+static struct spear_pingroup uart4_pingroup = {
+ .name = "uart4_grp",
+ .pins = uart4_pins,
+ .npins = ARRAY_SIZE(uart4_pins),
+ .modemuxs = uart4_modemux,
+ .nmodemuxs = ARRAY_SIZE(uart4_modemux),
+};
+
+static const char *const uart4_grps[] = { "uart4_grp" };
+static struct spear_function uart4_function = {
+ .name = "uart4",
+ .groups = uart4_grps,
+ .ngroups = ARRAY_SIZE(uart4_grps),
+};
+
+/* uart5_pins */
+static const unsigned uart5_pins[] = { 41, 42 };
+static struct spear_muxreg uart5_muxreg[] = {
+ {
+ .reg = PMX_CONFIG_REG,
+ .mask = PMX_UART0_MODEM_MASK,
+ .val = 0,
+ },
+};
+
+static struct spear_modemux uart5_modemux[] = {
+ {
+ .muxregs = uart5_muxreg,
+ .nmuxregs = ARRAY_SIZE(uart5_muxreg),
+ },
+};
+
+static struct spear_pingroup uart5_pingroup = {
+ .name = "uart5_grp",
+ .pins = uart5_pins,
+ .npins = ARRAY_SIZE(uart5_pins),
+ .modemuxs = uart5_modemux,
+ .nmodemuxs = ARRAY_SIZE(uart5_modemux),
+};
+
+static const char *const uart5_grps[] = { "uart5_grp" };
+static struct spear_function uart5_function = {
+ .name = "uart5",
+ .groups = uart5_grps,
+ .ngroups = ARRAY_SIZE(uart5_grps),
+};
+
+/* fsmc_pins */
+static const unsigned fsmc_pins[] = { 34, 35, 36 };
+static struct spear_muxreg fsmc_muxreg[] = {
+ {
+ .reg = PMX_CONFIG_REG,
+ .mask = PMX_SSP_CS_MASK,
+ .val = 0,
+ },
+};
+
+static struct spear_modemux fsmc_modemux[] = {
+ {
+ .muxregs = fsmc_muxreg,
+ .nmuxregs = ARRAY_SIZE(fsmc_muxreg),
+ },
+};
+
+static struct spear_pingroup fsmc_pingroup = {
+ .name = "fsmc_grp",
+ .pins = fsmc_pins,
+ .npins = ARRAY_SIZE(fsmc_pins),
+ .modemuxs = fsmc_modemux,
+ .nmodemuxs = ARRAY_SIZE(fsmc_modemux),
+};
+
+static const char *const fsmc_grps[] = { "fsmc_grp" };
+static struct spear_function fsmc_function = {
+ .name = "fsmc",
+ .groups = fsmc_grps,
+ .ngroups = ARRAY_SIZE(fsmc_grps),
+};
+
+/* rs485_0_pins */
+static const unsigned rs485_0_pins[] = { 19, 20, 21, 22, 23 };
+static struct spear_muxreg rs485_0_muxreg[] = {
+ {
+ .reg = PMX_CONFIG_REG,
+ .mask = PMX_MII_MASK,
+ .val = 0,
+ },
+};
+
+static struct spear_modemux rs485_0_modemux[] = {
+ {
+ .muxregs = rs485_0_muxreg,
+ .nmuxregs = ARRAY_SIZE(rs485_0_muxreg),
+ },
+};
+
+static struct spear_pingroup rs485_0_pingroup = {
+ .name = "rs485_0_grp",
+ .pins = rs485_0_pins,
+ .npins = ARRAY_SIZE(rs485_0_pins),
+ .modemuxs = rs485_0_modemux,
+ .nmodemuxs = ARRAY_SIZE(rs485_0_modemux),
+};
+
+static const char *const rs485_0_grps[] = { "rs485_0" };
+static struct spear_function rs485_0_function = {
+ .name = "rs485_0",
+ .groups = rs485_0_grps,
+ .ngroups = ARRAY_SIZE(rs485_0_grps),
+};
+
+/* rs485_1_pins */
+static const unsigned rs485_1_pins[] = { 14, 15, 16, 17, 18 };
+static struct spear_muxreg rs485_1_muxreg[] = {
+ {
+ .reg = PMX_CONFIG_REG,
+ .mask = PMX_MII_MASK,
+ .val = 0,
+ },
+};
+
+static struct spear_modemux rs485_1_modemux[] = {
+ {
+ .muxregs = rs485_1_muxreg,
+ .nmuxregs = ARRAY_SIZE(rs485_1_muxreg),
+ },
+};
+
+static struct spear_pingroup rs485_1_pingroup = {
+ .name = "rs485_1_grp",
+ .pins = rs485_1_pins,
+ .npins = ARRAY_SIZE(rs485_1_pins),
+ .modemuxs = rs485_1_modemux,
+ .nmodemuxs = ARRAY_SIZE(rs485_1_modemux),
+};
+
+static const char *const rs485_1_grps[] = { "rs485_1" };
+static struct spear_function rs485_1_function = {
+ .name = "rs485_1",
+ .groups = rs485_1_grps,
+ .ngroups = ARRAY_SIZE(rs485_1_grps),
+};
+
+/* tdm_pins */
+static const unsigned tdm_pins[] = { 10, 11, 12, 13 };
+static struct spear_muxreg tdm_muxreg[] = {
+ {
+ .reg = PMX_CONFIG_REG,
+ .mask = PMX_MII_MASK,
+ .val = 0,
+ },
+};
+
+static struct spear_modemux tdm_modemux[] = {
+ {
+ .muxregs = tdm_muxreg,
+ .nmuxregs = ARRAY_SIZE(tdm_muxreg),
+ },
+};
+
+static struct spear_pingroup tdm_pingroup = {
+ .name = "tdm_grp",
+ .pins = tdm_pins,
+ .npins = ARRAY_SIZE(tdm_pins),
+ .modemuxs = tdm_modemux,
+ .nmodemuxs = ARRAY_SIZE(tdm_modemux),
+};
+
+static const char *const tdm_grps[] = { "tdm_grp" };
+static struct spear_function tdm_function = {
+ .name = "tdm",
+ .groups = tdm_grps,
+ .ngroups = ARRAY_SIZE(tdm_grps),
+};
+
+/* pingroups */
+static struct spear_pingroup *spear310_pingroups[] = {
+ SPEAR3XX_COMMON_PINGROUPS,
+ &emi_cs_0_to_5_pingroup,
+ &uart1_pingroup,
+ &uart2_pingroup,
+ &uart3_pingroup,
+ &uart4_pingroup,
+ &uart5_pingroup,
+ &fsmc_pingroup,
+ &rs485_0_pingroup,
+ &rs485_1_pingroup,
+ &tdm_pingroup,
+};
+
+/* functions */
+static struct spear_function *spear310_functions[] = {
+ SPEAR3XX_COMMON_FUNCTIONS,
+ &emi_cs_0_to_5_function,
+ &uart1_function,
+ &uart2_function,
+ &uart3_function,
+ &uart4_function,
+ &uart5_function,
+ &fsmc_function,
+ &rs485_0_function,
+ &rs485_1_function,
+ &tdm_function,
+};
+
+static const struct of_device_id spear310_pinctrl_of_match[] = {
+ {
+ .compatible = "st,spear310-pinmux",
+ },
+ {},
+};
+
+static int spear310_pinctrl_probe(struct platform_device *pdev)
+{
+ spear3xx_machdata.groups = spear310_pingroups;
+ spear3xx_machdata.ngroups = ARRAY_SIZE(spear310_pingroups);
+ spear3xx_machdata.functions = spear310_functions;
+ spear3xx_machdata.nfunctions = ARRAY_SIZE(spear310_functions);
+
+ pmx_init_addr(&spear3xx_machdata, PMX_CONFIG_REG);
+ pmx_init_gpio_pingroup_addr(spear3xx_machdata.gpio_pingroups,
+ spear3xx_machdata.ngpio_pingroups, PMX_CONFIG_REG);
+
+ spear3xx_machdata.modes_supported = false;
+
+ return spear_pinctrl_probe(pdev, &spear3xx_machdata);
+}
+
+static struct platform_driver spear310_pinctrl_driver = {
+ .driver = {
+ .name = DRIVER_NAME,
+ .of_match_table = spear310_pinctrl_of_match,
+ },
+ .probe = spear310_pinctrl_probe,
+};
+
+static int __init spear310_pinctrl_init(void)
+{
+ return platform_driver_register(&spear310_pinctrl_driver);
+}
+arch_initcall(spear310_pinctrl_init);