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/pinctrl/bcm/pinctrl-bcm4908.c | 563 ++++++++++++++++++++++++++++++++++ 1 file changed, 563 insertions(+) create mode 100644 drivers/pinctrl/bcm/pinctrl-bcm4908.c (limited to 'drivers/pinctrl/bcm/pinctrl-bcm4908.c') diff --git a/drivers/pinctrl/bcm/pinctrl-bcm4908.c b/drivers/pinctrl/bcm/pinctrl-bcm4908.c new file mode 100644 index 000000000..cdfa165fc --- /dev/null +++ b/drivers/pinctrl/bcm/pinctrl-bcm4908.c @@ -0,0 +1,563 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (C) 2021 Rafał Miłecki */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "../core.h" +#include "../pinmux.h" + +#define BCM4908_NUM_PINS 86 + +#define BCM4908_TEST_PORT_BLOCK_EN_LSB 0x00 +#define BCM4908_TEST_PORT_BLOCK_DATA_MSB 0x04 +#define BCM4908_TEST_PORT_BLOCK_DATA_LSB 0x08 +#define BCM4908_TEST_PORT_LSB_PINMUX_DATA_SHIFT 12 +#define BCM4908_TEST_PORT_COMMAND 0x0c +#define BCM4908_TEST_PORT_CMD_LOAD_MUX_REG 0x00000021 + +struct bcm4908_pinctrl { + struct device *dev; + void __iomem *base; + struct mutex mutex; + struct pinctrl_dev *pctldev; + struct pinctrl_desc pctldesc; +}; + +/* + * Groups + */ + +struct bcm4908_pinctrl_pin_setup { + unsigned int number; + unsigned int function; +}; + +static const struct bcm4908_pinctrl_pin_setup led_0_pins_a[] = { + { 0, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_1_pins_a[] = { + { 1, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_2_pins_a[] = { + { 2, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_3_pins_a[] = { + { 3, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_4_pins_a[] = { + { 4, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_5_pins_a[] = { + { 5, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_6_pins_a[] = { + { 6, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_7_pins_a[] = { + { 7, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_8_pins_a[] = { + { 8, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_9_pins_a[] = { + { 9, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_10_pins_a[] = { + { 10, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_11_pins_a[] = { + { 11, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_12_pins_a[] = { + { 12, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_13_pins_a[] = { + { 13, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_14_pins_a[] = { + { 14, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_15_pins_a[] = { + { 15, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_16_pins_a[] = { + { 16, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_17_pins_a[] = { + { 17, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_18_pins_a[] = { + { 18, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_19_pins_a[] = { + { 19, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_20_pins_a[] = { + { 20, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_21_pins_a[] = { + { 21, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_22_pins_a[] = { + { 22, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_23_pins_a[] = { + { 23, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_24_pins_a[] = { + { 24, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_25_pins_a[] = { + { 25, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_26_pins_a[] = { + { 26, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_27_pins_a[] = { + { 27, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_28_pins_a[] = { + { 28, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_29_pins_a[] = { + { 29, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_30_pins_a[] = { + { 30, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_31_pins_a[] = { + { 31, 3 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_10_pins_b[] = { + { 8, 2 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_11_pins_b[] = { + { 9, 2 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_12_pins_b[] = { + { 0, 2 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_13_pins_b[] = { + { 1, 2 }, +}; + +static const struct bcm4908_pinctrl_pin_setup led_31_pins_b[] = { + { 30, 2 }, +}; + +static const struct bcm4908_pinctrl_pin_setup hs_uart_pins[] = { + { 10, 0 }, /* CTS */ + { 11, 0 }, /* RTS */ + { 12, 0 }, /* RXD */ + { 13, 0 }, /* TXD */ +}; + +static const struct bcm4908_pinctrl_pin_setup i2c_pins_a[] = { + { 18, 0 }, /* SDA */ + { 19, 0 }, /* SCL */ +}; + +static const struct bcm4908_pinctrl_pin_setup i2c_pins_b[] = { + { 22, 0 }, /* SDA */ + { 23, 0 }, /* SCL */ +}; + +static const struct bcm4908_pinctrl_pin_setup i2s_pins[] = { + { 27, 0 }, /* MCLK */ + { 28, 0 }, /* LRCK */ + { 29, 0 }, /* SDATA */ + { 30, 0 }, /* SCLK */ +}; + +static const struct bcm4908_pinctrl_pin_setup nand_ctrl_pins[] = { + { 32, 0 }, + { 33, 0 }, + { 34, 0 }, + { 43, 0 }, + { 44, 0 }, + { 45, 0 }, + { 56, 1 }, +}; + +static const struct bcm4908_pinctrl_pin_setup nand_data_pins[] = { + { 35, 0 }, + { 36, 0 }, + { 37, 0 }, + { 38, 0 }, + { 39, 0 }, + { 40, 0 }, + { 41, 0 }, + { 42, 0 }, +}; + +static const struct bcm4908_pinctrl_pin_setup emmc_ctrl_pins[] = { + { 46, 0 }, + { 47, 0 }, +}; + +static const struct bcm4908_pinctrl_pin_setup usb0_pwr_pins[] = { + { 63, 0 }, + { 64, 0 }, +}; + +static const struct bcm4908_pinctrl_pin_setup usb1_pwr_pins[] = { + { 66, 0 }, + { 67, 0 }, +}; + +struct bcm4908_pinctrl_grp { + const char *name; + const struct bcm4908_pinctrl_pin_setup *pins; + const unsigned int num_pins; +}; + +static const struct bcm4908_pinctrl_grp bcm4908_pinctrl_grps[] = { + { "led_0_grp_a", led_0_pins_a, ARRAY_SIZE(led_0_pins_a) }, + { "led_1_grp_a", led_1_pins_a, ARRAY_SIZE(led_1_pins_a) }, + { "led_2_grp_a", led_2_pins_a, ARRAY_SIZE(led_2_pins_a) }, + { "led_3_grp_a", led_3_pins_a, ARRAY_SIZE(led_3_pins_a) }, + { "led_4_grp_a", led_4_pins_a, ARRAY_SIZE(led_4_pins_a) }, + { "led_5_grp_a", led_5_pins_a, ARRAY_SIZE(led_5_pins_a) }, + { "led_6_grp_a", led_6_pins_a, ARRAY_SIZE(led_6_pins_a) }, + { "led_7_grp_a", led_7_pins_a, ARRAY_SIZE(led_7_pins_a) }, + { "led_8_grp_a", led_8_pins_a, ARRAY_SIZE(led_8_pins_a) }, + { "led_9_grp_a", led_9_pins_a, ARRAY_SIZE(led_9_pins_a) }, + { "led_10_grp_a", led_10_pins_a, ARRAY_SIZE(led_10_pins_a) }, + { "led_11_grp_a", led_11_pins_a, ARRAY_SIZE(led_11_pins_a) }, + { "led_12_grp_a", led_12_pins_a, ARRAY_SIZE(led_12_pins_a) }, + { "led_13_grp_a", led_13_pins_a, ARRAY_SIZE(led_13_pins_a) }, + { "led_14_grp_a", led_14_pins_a, ARRAY_SIZE(led_14_pins_a) }, + { "led_15_grp_a", led_15_pins_a, ARRAY_SIZE(led_15_pins_a) }, + { "led_16_grp_a", led_16_pins_a, ARRAY_SIZE(led_16_pins_a) }, + { "led_17_grp_a", led_17_pins_a, ARRAY_SIZE(led_17_pins_a) }, + { "led_18_grp_a", led_18_pins_a, ARRAY_SIZE(led_18_pins_a) }, + { "led_19_grp_a", led_19_pins_a, ARRAY_SIZE(led_19_pins_a) }, + { "led_20_grp_a", led_20_pins_a, ARRAY_SIZE(led_20_pins_a) }, + { "led_21_grp_a", led_21_pins_a, ARRAY_SIZE(led_21_pins_a) }, + { "led_22_grp_a", led_22_pins_a, ARRAY_SIZE(led_22_pins_a) }, + { "led_23_grp_a", led_23_pins_a, ARRAY_SIZE(led_23_pins_a) }, + { "led_24_grp_a", led_24_pins_a, ARRAY_SIZE(led_24_pins_a) }, + { "led_25_grp_a", led_25_pins_a, ARRAY_SIZE(led_25_pins_a) }, + { "led_26_grp_a", led_26_pins_a, ARRAY_SIZE(led_26_pins_a) }, + { "led_27_grp_a", led_27_pins_a, ARRAY_SIZE(led_27_pins_a) }, + { "led_28_grp_a", led_28_pins_a, ARRAY_SIZE(led_28_pins_a) }, + { "led_29_grp_a", led_29_pins_a, ARRAY_SIZE(led_29_pins_a) }, + { "led_30_grp_a", led_30_pins_a, ARRAY_SIZE(led_30_pins_a) }, + { "led_31_grp_a", led_31_pins_a, ARRAY_SIZE(led_31_pins_a) }, + { "led_10_grp_b", led_10_pins_b, ARRAY_SIZE(led_10_pins_b) }, + { "led_11_grp_b", led_11_pins_b, ARRAY_SIZE(led_11_pins_b) }, + { "led_12_grp_b", led_12_pins_b, ARRAY_SIZE(led_12_pins_b) }, + { "led_13_grp_b", led_13_pins_b, ARRAY_SIZE(led_13_pins_b) }, + { "led_31_grp_b", led_31_pins_b, ARRAY_SIZE(led_31_pins_b) }, + { "hs_uart_grp", hs_uart_pins, ARRAY_SIZE(hs_uart_pins) }, + { "i2c_grp_a", i2c_pins_a, ARRAY_SIZE(i2c_pins_a) }, + { "i2c_grp_b", i2c_pins_b, ARRAY_SIZE(i2c_pins_b) }, + { "i2s_grp", i2s_pins, ARRAY_SIZE(i2s_pins) }, + { "nand_ctrl_grp", nand_ctrl_pins, ARRAY_SIZE(nand_ctrl_pins) }, + { "nand_data_grp", nand_data_pins, ARRAY_SIZE(nand_data_pins) }, + { "emmc_ctrl_grp", emmc_ctrl_pins, ARRAY_SIZE(emmc_ctrl_pins) }, + { "usb0_pwr_grp", usb0_pwr_pins, ARRAY_SIZE(usb0_pwr_pins) }, + { "usb1_pwr_grp", usb1_pwr_pins, ARRAY_SIZE(usb1_pwr_pins) }, +}; + +/* + * Functions + */ + +struct bcm4908_pinctrl_function { + const char *name; + const char * const *groups; + const unsigned int num_groups; +}; + +static const char * const led_0_groups[] = { "led_0_grp_a" }; +static const char * const led_1_groups[] = { "led_1_grp_a" }; +static const char * const led_2_groups[] = { "led_2_grp_a" }; +static const char * const led_3_groups[] = { "led_3_grp_a" }; +static const char * const led_4_groups[] = { "led_4_grp_a" }; +static const char * const led_5_groups[] = { "led_5_grp_a" }; +static const char * const led_6_groups[] = { "led_6_grp_a" }; +static const char * const led_7_groups[] = { "led_7_grp_a" }; +static const char * const led_8_groups[] = { "led_8_grp_a" }; +static const char * const led_9_groups[] = { "led_9_grp_a" }; +static const char * const led_10_groups[] = { "led_10_grp_a", "led_10_grp_b" }; +static const char * const led_11_groups[] = { "led_11_grp_a", "led_11_grp_b" }; +static const char * const led_12_groups[] = { "led_12_grp_a", "led_12_grp_b" }; +static const char * const led_13_groups[] = { "led_13_grp_a", "led_13_grp_b" }; +static const char * const led_14_groups[] = { "led_14_grp_a" }; +static const char * const led_15_groups[] = { "led_15_grp_a" }; +static const char * const led_16_groups[] = { "led_16_grp_a" }; +static const char * const led_17_groups[] = { "led_17_grp_a" }; +static const char * const led_18_groups[] = { "led_18_grp_a" }; +static const char * const led_19_groups[] = { "led_19_grp_a" }; +static const char * const led_20_groups[] = { "led_20_grp_a" }; +static const char * const led_21_groups[] = { "led_21_grp_a" }; +static const char * const led_22_groups[] = { "led_22_grp_a" }; +static const char * const led_23_groups[] = { "led_23_grp_a" }; +static const char * const led_24_groups[] = { "led_24_grp_a" }; +static const char * const led_25_groups[] = { "led_25_grp_a" }; +static const char * const led_26_groups[] = { "led_26_grp_a" }; +static const char * const led_27_groups[] = { "led_27_grp_a" }; +static const char * const led_28_groups[] = { "led_28_grp_a" }; +static const char * const led_29_groups[] = { "led_29_grp_a" }; +static const char * const led_30_groups[] = { "led_30_grp_a" }; +static const char * const led_31_groups[] = { "led_31_grp_a", "led_31_grp_b" }; +static const char * const hs_uart_groups[] = { "hs_uart_grp" }; +static const char * const i2c_groups[] = { "i2c_grp_a", "i2c_grp_b" }; +static const char * const i2s_groups[] = { "i2s_grp" }; +static const char * const nand_ctrl_groups[] = { "nand_ctrl_grp" }; +static const char * const nand_data_groups[] = { "nand_data_grp" }; +static const char * const emmc_ctrl_groups[] = { "emmc_ctrl_grp" }; +static const char * const usb0_pwr_groups[] = { "usb0_pwr_grp" }; +static const char * const usb1_pwr_groups[] = { "usb1_pwr_grp" }; + +static const struct bcm4908_pinctrl_function bcm4908_pinctrl_functions[] = { + { "led_0", led_0_groups, ARRAY_SIZE(led_0_groups) }, + { "led_1", led_1_groups, ARRAY_SIZE(led_1_groups) }, + { "led_2", led_2_groups, ARRAY_SIZE(led_2_groups) }, + { "led_3", led_3_groups, ARRAY_SIZE(led_3_groups) }, + { "led_4", led_4_groups, ARRAY_SIZE(led_4_groups) }, + { "led_5", led_5_groups, ARRAY_SIZE(led_5_groups) }, + { "led_6", led_6_groups, ARRAY_SIZE(led_6_groups) }, + { "led_7", led_7_groups, ARRAY_SIZE(led_7_groups) }, + { "led_8", led_8_groups, ARRAY_SIZE(led_8_groups) }, + { "led_9", led_9_groups, ARRAY_SIZE(led_9_groups) }, + { "led_10", led_10_groups, ARRAY_SIZE(led_10_groups) }, + { "led_11", led_11_groups, ARRAY_SIZE(led_11_groups) }, + { "led_12", led_12_groups, ARRAY_SIZE(led_12_groups) }, + { "led_13", led_13_groups, ARRAY_SIZE(led_13_groups) }, + { "led_14", led_14_groups, ARRAY_SIZE(led_14_groups) }, + { "led_15", led_15_groups, ARRAY_SIZE(led_15_groups) }, + { "led_16", led_16_groups, ARRAY_SIZE(led_16_groups) }, + { "led_17", led_17_groups, ARRAY_SIZE(led_17_groups) }, + { "led_18", led_18_groups, ARRAY_SIZE(led_18_groups) }, + { "led_19", led_19_groups, ARRAY_SIZE(led_19_groups) }, + { "led_20", led_20_groups, ARRAY_SIZE(led_20_groups) }, + { "led_21", led_21_groups, ARRAY_SIZE(led_21_groups) }, + { "led_22", led_22_groups, ARRAY_SIZE(led_22_groups) }, + { "led_23", led_23_groups, ARRAY_SIZE(led_23_groups) }, + { "led_24", led_24_groups, ARRAY_SIZE(led_24_groups) }, + { "led_25", led_25_groups, ARRAY_SIZE(led_25_groups) }, + { "led_26", led_26_groups, ARRAY_SIZE(led_26_groups) }, + { "led_27", led_27_groups, ARRAY_SIZE(led_27_groups) }, + { "led_28", led_28_groups, ARRAY_SIZE(led_28_groups) }, + { "led_29", led_29_groups, ARRAY_SIZE(led_29_groups) }, + { "led_30", led_30_groups, ARRAY_SIZE(led_30_groups) }, + { "led_31", led_31_groups, ARRAY_SIZE(led_31_groups) }, + { "hs_uart", hs_uart_groups, ARRAY_SIZE(hs_uart_groups) }, + { "i2c", i2c_groups, ARRAY_SIZE(i2c_groups) }, + { "i2s", i2s_groups, ARRAY_SIZE(i2s_groups) }, + { "nand_ctrl", nand_ctrl_groups, ARRAY_SIZE(nand_ctrl_groups) }, + { "nand_data", nand_data_groups, ARRAY_SIZE(nand_data_groups) }, + { "emmc_ctrl", emmc_ctrl_groups, ARRAY_SIZE(emmc_ctrl_groups) }, + { "usb0_pwr", usb0_pwr_groups, ARRAY_SIZE(usb0_pwr_groups) }, + { "usb1_pwr", usb1_pwr_groups, ARRAY_SIZE(usb1_pwr_groups) }, +}; + +/* + * Groups code + */ + +static const struct pinctrl_ops bcm4908_pinctrl_ops = { + .get_groups_count = pinctrl_generic_get_group_count, + .get_group_name = pinctrl_generic_get_group_name, + .get_group_pins = pinctrl_generic_get_group_pins, + .dt_node_to_map = pinconf_generic_dt_node_to_map_group, + .dt_free_map = pinconf_generic_dt_free_map, +}; + +/* + * Functions code + */ + +static int bcm4908_pinctrl_set_mux(struct pinctrl_dev *pctrl_dev, + unsigned int func_selector, + unsigned int group_selector) +{ + struct bcm4908_pinctrl *bcm4908_pinctrl = pinctrl_dev_get_drvdata(pctrl_dev); + const struct bcm4908_pinctrl_grp *group; + struct group_desc *group_desc; + int i; + + group_desc = pinctrl_generic_get_group(pctrl_dev, group_selector); + if (!group_desc) + return -EINVAL; + group = group_desc->data; + + mutex_lock(&bcm4908_pinctrl->mutex); + for (i = 0; i < group->num_pins; i++) { + u32 lsb = 0; + + lsb |= group->pins[i].number; + lsb |= group->pins[i].function << BCM4908_TEST_PORT_LSB_PINMUX_DATA_SHIFT; + + writel(0x0, bcm4908_pinctrl->base + BCM4908_TEST_PORT_BLOCK_DATA_MSB); + writel(lsb, bcm4908_pinctrl->base + BCM4908_TEST_PORT_BLOCK_DATA_LSB); + writel(BCM4908_TEST_PORT_CMD_LOAD_MUX_REG, + bcm4908_pinctrl->base + BCM4908_TEST_PORT_COMMAND); + } + mutex_unlock(&bcm4908_pinctrl->mutex); + + return 0; +} + +static const struct pinmux_ops bcm4908_pinctrl_pmxops = { + .get_functions_count = pinmux_generic_get_function_count, + .get_function_name = pinmux_generic_get_function_name, + .get_function_groups = pinmux_generic_get_function_groups, + .set_mux = bcm4908_pinctrl_set_mux, +}; + +/* + * Controller code + */ + +static struct pinctrl_desc bcm4908_pinctrl_desc = { + .name = "bcm4908-pinctrl", + .pctlops = &bcm4908_pinctrl_ops, + .pmxops = &bcm4908_pinctrl_pmxops, +}; + +static const struct of_device_id bcm4908_pinctrl_of_match_table[] = { + { .compatible = "brcm,bcm4908-pinctrl", }, + { } +}; + +static int bcm4908_pinctrl_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct bcm4908_pinctrl *bcm4908_pinctrl; + struct pinctrl_desc *pctldesc; + struct pinctrl_pin_desc *pins; + char **pin_names; + int i; + + bcm4908_pinctrl = devm_kzalloc(dev, sizeof(*bcm4908_pinctrl), GFP_KERNEL); + if (!bcm4908_pinctrl) + return -ENOMEM; + pctldesc = &bcm4908_pinctrl->pctldesc; + platform_set_drvdata(pdev, bcm4908_pinctrl); + + /* Set basic properties */ + + bcm4908_pinctrl->dev = dev; + + bcm4908_pinctrl->base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(bcm4908_pinctrl->base)) + return PTR_ERR(bcm4908_pinctrl->base); + + mutex_init(&bcm4908_pinctrl->mutex); + + memcpy(pctldesc, &bcm4908_pinctrl_desc, sizeof(*pctldesc)); + + /* Set pinctrl properties */ + + pin_names = devm_kasprintf_strarray(dev, "pin", BCM4908_NUM_PINS); + if (IS_ERR(pin_names)) + return PTR_ERR(pin_names); + + pins = devm_kcalloc(dev, BCM4908_NUM_PINS, sizeof(*pins), GFP_KERNEL); + if (!pins) + return -ENOMEM; + for (i = 0; i < BCM4908_NUM_PINS; i++) { + pins[i].number = i; + pins[i].name = pin_names[i]; + } + pctldesc->pins = pins; + pctldesc->npins = BCM4908_NUM_PINS; + + /* Register */ + + bcm4908_pinctrl->pctldev = devm_pinctrl_register(dev, pctldesc, bcm4908_pinctrl); + if (IS_ERR(bcm4908_pinctrl->pctldev)) + return dev_err_probe(dev, PTR_ERR(bcm4908_pinctrl->pctldev), + "Failed to register pinctrl\n"); + + /* Groups */ + + for (i = 0; i < ARRAY_SIZE(bcm4908_pinctrl_grps); i++) { + const struct bcm4908_pinctrl_grp *group = &bcm4908_pinctrl_grps[i]; + int *pins; + int j; + + pins = devm_kcalloc(dev, group->num_pins, sizeof(*pins), GFP_KERNEL); + if (!pins) + return -ENOMEM; + for (j = 0; j < group->num_pins; j++) + pins[j] = group->pins[j].number; + + pinctrl_generic_add_group(bcm4908_pinctrl->pctldev, group->name, + pins, group->num_pins, (void *)group); + } + + /* Functions */ + + for (i = 0; i < ARRAY_SIZE(bcm4908_pinctrl_functions); i++) { + const struct bcm4908_pinctrl_function *function = &bcm4908_pinctrl_functions[i]; + + pinmux_generic_add_function(bcm4908_pinctrl->pctldev, + function->name, + function->groups, + function->num_groups, NULL); + } + + return 0; +} + +static struct platform_driver bcm4908_pinctrl_driver = { + .probe = bcm4908_pinctrl_probe, + .driver = { + .name = "bcm4908-pinctrl", + .of_match_table = bcm4908_pinctrl_of_match_table, + }, +}; + +module_platform_driver(bcm4908_pinctrl_driver); + +MODULE_AUTHOR("Rafał Miłecki"); +MODULE_LICENSE("GPL v2"); +MODULE_DEVICE_TABLE(of, bcm4908_pinctrl_of_match_table); -- cgit v1.2.3