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(). ... --- arch/arm/mach-omap2/cm3xxx.c | 678 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 678 insertions(+) create mode 100644 arch/arm/mach-omap2/cm3xxx.c (limited to 'arch/arm/mach-omap2/cm3xxx.c') diff --git a/arch/arm/mach-omap2/cm3xxx.c b/arch/arm/mach-omap2/cm3xxx.c new file mode 100644 index 000000000..b03b6123b --- /dev/null +++ b/arch/arm/mach-omap2/cm3xxx.c @@ -0,0 +1,678 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP3xxx CM module functions + * + * Copyright (C) 2009 Nokia Corporation + * Copyright (C) 2008-2010, 2012 Texas Instruments, Inc. + * Paul Walmsley + * Rajendra Nayak + */ + +#include +#include +#include +#include +#include +#include + +#include "prm2xxx_3xxx.h" +#include "cm.h" +#include "cm3xxx.h" +#include "cm-regbits-34xx.h" +#include "clockdomain.h" + +static const u8 omap3xxx_cm_idlest_offs[] = { + CM_IDLEST1, CM_IDLEST2, OMAP2430_CM_IDLEST3 +}; + +/* + * + */ + +static void _write_clktrctrl(u8 c, s16 module, u32 mask) +{ + u32 v; + + v = omap2_cm_read_mod_reg(module, OMAP2_CM_CLKSTCTRL); + v &= ~mask; + v |= c << __ffs(mask); + omap2_cm_write_mod_reg(v, module, OMAP2_CM_CLKSTCTRL); +} + +static bool omap3xxx_cm_is_clkdm_in_hwsup(s16 module, u32 mask) +{ + u32 v; + + v = omap2_cm_read_mod_reg(module, OMAP2_CM_CLKSTCTRL); + v &= mask; + v >>= __ffs(mask); + + return (v == OMAP34XX_CLKSTCTRL_ENABLE_AUTO) ? 1 : 0; +} + +static void omap3xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask) +{ + _write_clktrctrl(OMAP34XX_CLKSTCTRL_ENABLE_AUTO, module, mask); +} + +static void omap3xxx_cm_clkdm_disable_hwsup(s16 module, u32 mask) +{ + _write_clktrctrl(OMAP34XX_CLKSTCTRL_DISABLE_AUTO, module, mask); +} + +static void omap3xxx_cm_clkdm_force_sleep(s16 module, u32 mask) +{ + _write_clktrctrl(OMAP34XX_CLKSTCTRL_FORCE_SLEEP, module, mask); +} + +static void omap3xxx_cm_clkdm_force_wakeup(s16 module, u32 mask) +{ + _write_clktrctrl(OMAP34XX_CLKSTCTRL_FORCE_WAKEUP, module, mask); +} + +/* + * + */ + +/** + * omap3xxx_cm_wait_module_ready - wait for a module to leave idle or standby + * @part: PRCM partition, ignored for OMAP3 + * @prcm_mod: PRCM module offset + * @idlest_id: CM_IDLESTx register ID (i.e., x = 1, 2, 3) + * @idlest_shift: shift of the bit in the CM_IDLEST* register to check + * + * Wait for the PRCM to indicate that the module identified by + * (@prcm_mod, @idlest_id, @idlest_shift) is clocked. Return 0 upon + * success or -EBUSY if the module doesn't enable in time. + */ +static int omap3xxx_cm_wait_module_ready(u8 part, s16 prcm_mod, u16 idlest_id, + u8 idlest_shift) +{ + int ena = 0, i = 0; + u8 cm_idlest_reg; + u32 mask; + + if (!idlest_id || (idlest_id > ARRAY_SIZE(omap3xxx_cm_idlest_offs))) + return -EINVAL; + + cm_idlest_reg = omap3xxx_cm_idlest_offs[idlest_id - 1]; + + mask = 1 << idlest_shift; + ena = 0; + + omap_test_timeout(((omap2_cm_read_mod_reg(prcm_mod, cm_idlest_reg) & + mask) == ena), MAX_MODULE_READY_TIME, i); + + return (i < MAX_MODULE_READY_TIME) ? 0 : -EBUSY; +} + +/** + * omap3xxx_cm_split_idlest_reg - split CM_IDLEST reg addr into its components + * @idlest_reg: CM_IDLEST* virtual address + * @prcm_inst: pointer to an s16 to return the PRCM instance offset + * @idlest_reg_id: pointer to a u8 to return the CM_IDLESTx register ID + * + * XXX This function is only needed until absolute register addresses are + * removed from the OMAP struct clk records. + */ +static int omap3xxx_cm_split_idlest_reg(struct clk_omap_reg *idlest_reg, + s16 *prcm_inst, + u8 *idlest_reg_id) +{ + unsigned long offs; + u8 idlest_offs; + int i; + + idlest_offs = idlest_reg->offset & 0xff; + for (i = 0; i < ARRAY_SIZE(omap3xxx_cm_idlest_offs); i++) { + if (idlest_offs == omap3xxx_cm_idlest_offs[i]) { + *idlest_reg_id = i + 1; + break; + } + } + + if (i == ARRAY_SIZE(omap3xxx_cm_idlest_offs)) + return -EINVAL; + + offs = idlest_reg->offset; + offs &= 0xff00; + *prcm_inst = offs; + + return 0; +} + +/* Clockdomain low-level operations */ + +static int omap3xxx_clkdm_add_sleepdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + omap2_cm_set_mod_reg_bits((1 << clkdm2->dep_bit), + clkdm1->pwrdm.ptr->prcm_offs, + OMAP3430_CM_SLEEPDEP); + return 0; +} + +static int omap3xxx_clkdm_del_sleepdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + omap2_cm_clear_mod_reg_bits((1 << clkdm2->dep_bit), + clkdm1->pwrdm.ptr->prcm_offs, + OMAP3430_CM_SLEEPDEP); + return 0; +} + +static int omap3xxx_clkdm_read_sleepdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + return omap2_cm_read_mod_bits_shift(clkdm1->pwrdm.ptr->prcm_offs, + OMAP3430_CM_SLEEPDEP, + (1 << clkdm2->dep_bit)); +} + +static int omap3xxx_clkdm_clear_all_sleepdeps(struct clockdomain *clkdm) +{ + struct clkdm_dep *cd; + u32 mask = 0; + + for (cd = clkdm->sleepdep_srcs; cd && cd->clkdm_name; cd++) { + if (!cd->clkdm) + continue; /* only happens if data is erroneous */ + + mask |= 1 << cd->clkdm->dep_bit; + cd->sleepdep_usecount = 0; + } + omap2_cm_clear_mod_reg_bits(mask, clkdm->pwrdm.ptr->prcm_offs, + OMAP3430_CM_SLEEPDEP); + return 0; +} + +static int omap3xxx_clkdm_sleep(struct clockdomain *clkdm) +{ + omap3xxx_cm_clkdm_force_sleep(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + return 0; +} + +static int omap3xxx_clkdm_wakeup(struct clockdomain *clkdm) +{ + omap3xxx_cm_clkdm_force_wakeup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + return 0; +} + +static void omap3xxx_clkdm_allow_idle(struct clockdomain *clkdm) +{ + if (clkdm->usecount > 0) + clkdm_add_autodeps(clkdm); + + omap3xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); +} + +static void omap3xxx_clkdm_deny_idle(struct clockdomain *clkdm) +{ + omap3xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + + if (clkdm->usecount > 0) + clkdm_del_autodeps(clkdm); +} + +static int omap3xxx_clkdm_clk_enable(struct clockdomain *clkdm) +{ + bool hwsup = false; + + if (!clkdm->clktrctrl_mask) + return 0; + + /* + * The CLKDM_MISSING_IDLE_REPORTING flag documentation has + * more details on the unpleasant problem this is working + * around + */ + if ((clkdm->flags & CLKDM_MISSING_IDLE_REPORTING) && + (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP)) { + omap3xxx_clkdm_wakeup(clkdm); + return 0; + } + + hwsup = omap3xxx_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + + if (hwsup) { + /* Disable HW transitions when we are changing deps */ + omap3xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + clkdm_add_autodeps(clkdm); + omap3xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + } else { + if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP) + omap3xxx_clkdm_wakeup(clkdm); + } + + return 0; +} + +static int omap3xxx_clkdm_clk_disable(struct clockdomain *clkdm) +{ + bool hwsup = false; + + if (!clkdm->clktrctrl_mask) + return 0; + + /* + * The CLKDM_MISSING_IDLE_REPORTING flag documentation has + * more details on the unpleasant problem this is working + * around + */ + if (clkdm->flags & CLKDM_MISSING_IDLE_REPORTING && + !(clkdm->flags & CLKDM_CAN_FORCE_SLEEP)) { + omap3xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + return 0; + } + + hwsup = omap3xxx_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + + if (hwsup) { + /* Disable HW transitions when we are changing deps */ + omap3xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + clkdm_del_autodeps(clkdm); + omap3xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + } else { + if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP) + omap3xxx_clkdm_sleep(clkdm); + } + + return 0; +} + +struct clkdm_ops omap3_clkdm_operations = { + .clkdm_add_wkdep = omap2_clkdm_add_wkdep, + .clkdm_del_wkdep = omap2_clkdm_del_wkdep, + .clkdm_read_wkdep = omap2_clkdm_read_wkdep, + .clkdm_clear_all_wkdeps = omap2_clkdm_clear_all_wkdeps, + .clkdm_add_sleepdep = omap3xxx_clkdm_add_sleepdep, + .clkdm_del_sleepdep = omap3xxx_clkdm_del_sleepdep, + .clkdm_read_sleepdep = omap3xxx_clkdm_read_sleepdep, + .clkdm_clear_all_sleepdeps = omap3xxx_clkdm_clear_all_sleepdeps, + .clkdm_sleep = omap3xxx_clkdm_sleep, + .clkdm_wakeup = omap3xxx_clkdm_wakeup, + .clkdm_allow_idle = omap3xxx_clkdm_allow_idle, + .clkdm_deny_idle = omap3xxx_clkdm_deny_idle, + .clkdm_clk_enable = omap3xxx_clkdm_clk_enable, + .clkdm_clk_disable = omap3xxx_clkdm_clk_disable, +}; + +/* + * Context save/restore code - OMAP3 only + */ +struct omap3_cm_regs { + u32 iva2_cm_clksel1; + u32 iva2_cm_clksel2; + u32 cm_sysconfig; + u32 sgx_cm_clksel; + u32 dss_cm_clksel; + u32 cam_cm_clksel; + u32 per_cm_clksel; + u32 emu_cm_clksel; + u32 emu_cm_clkstctrl; + u32 pll_cm_autoidle; + u32 pll_cm_autoidle2; + u32 pll_cm_clksel4; + u32 pll_cm_clksel5; + u32 pll_cm_clken2; + u32 cm_polctrl; + u32 iva2_cm_fclken; + u32 iva2_cm_clken_pll; + u32 core_cm_fclken1; + u32 core_cm_fclken3; + u32 sgx_cm_fclken; + u32 wkup_cm_fclken; + u32 dss_cm_fclken; + u32 cam_cm_fclken; + u32 per_cm_fclken; + u32 usbhost_cm_fclken; + u32 core_cm_iclken1; + u32 core_cm_iclken2; + u32 core_cm_iclken3; + u32 sgx_cm_iclken; + u32 wkup_cm_iclken; + u32 dss_cm_iclken; + u32 cam_cm_iclken; + u32 per_cm_iclken; + u32 usbhost_cm_iclken; + u32 iva2_cm_autoidle2; + u32 mpu_cm_autoidle2; + u32 iva2_cm_clkstctrl; + u32 mpu_cm_clkstctrl; + u32 core_cm_clkstctrl; + u32 sgx_cm_clkstctrl; + u32 dss_cm_clkstctrl; + u32 cam_cm_clkstctrl; + u32 per_cm_clkstctrl; + u32 neon_cm_clkstctrl; + u32 usbhost_cm_clkstctrl; + u32 core_cm_autoidle1; + u32 core_cm_autoidle2; + u32 core_cm_autoidle3; + u32 wkup_cm_autoidle; + u32 dss_cm_autoidle; + u32 cam_cm_autoidle; + u32 per_cm_autoidle; + u32 usbhost_cm_autoidle; + u32 sgx_cm_sleepdep; + u32 dss_cm_sleepdep; + u32 cam_cm_sleepdep; + u32 per_cm_sleepdep; + u32 usbhost_cm_sleepdep; + u32 cm_clkout_ctrl; +}; + +static struct omap3_cm_regs cm_context; + +void omap3_cm_save_context(void) +{ + cm_context.iva2_cm_clksel1 = + omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSEL1); + cm_context.iva2_cm_clksel2 = + omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSEL2); + cm_context.cm_sysconfig = + omap2_cm_read_mod_reg(OCP_MOD, OMAP3430_CM_SYSCONFIG); + cm_context.sgx_cm_clksel = + omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_CLKSEL); + cm_context.dss_cm_clksel = + omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_CLKSEL); + cm_context.cam_cm_clksel = + omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_CLKSEL); + cm_context.per_cm_clksel = + omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_CLKSEL); + cm_context.emu_cm_clksel = + omap2_cm_read_mod_reg(OMAP3430_EMU_MOD, CM_CLKSEL1); + cm_context.emu_cm_clkstctrl = + omap2_cm_read_mod_reg(OMAP3430_EMU_MOD, OMAP2_CM_CLKSTCTRL); + /* + * As per erratum i671, ROM code does not respect the PER DPLL + * programming scheme if CM_AUTOIDLE_PLL.AUTO_PERIPH_DPLL == 1. + * In this case, even though this register has been saved in + * scratchpad contents, we need to restore AUTO_PERIPH_DPLL + * by ourselves. So, we need to save it anyway. + */ + cm_context.pll_cm_autoidle = + omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE); + cm_context.pll_cm_autoidle2 = + omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE2); + cm_context.pll_cm_clksel4 = + omap2_cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKSEL4); + cm_context.pll_cm_clksel5 = + omap2_cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKSEL5); + cm_context.pll_cm_clken2 = + omap2_cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKEN2); + cm_context.cm_polctrl = + omap2_cm_read_mod_reg(OCP_MOD, OMAP3430_CM_POLCTRL); + cm_context.iva2_cm_fclken = + omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_FCLKEN); + cm_context.iva2_cm_clken_pll = + omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, OMAP3430_CM_CLKEN_PLL); + cm_context.core_cm_fclken1 = + omap2_cm_read_mod_reg(CORE_MOD, CM_FCLKEN1); + cm_context.core_cm_fclken3 = + omap2_cm_read_mod_reg(CORE_MOD, OMAP3430ES2_CM_FCLKEN3); + cm_context.sgx_cm_fclken = + omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_FCLKEN); + cm_context.wkup_cm_fclken = + omap2_cm_read_mod_reg(WKUP_MOD, CM_FCLKEN); + cm_context.dss_cm_fclken = + omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_FCLKEN); + cm_context.cam_cm_fclken = + omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_FCLKEN); + cm_context.per_cm_fclken = + omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_FCLKEN); + cm_context.usbhost_cm_fclken = + omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_FCLKEN); + cm_context.core_cm_iclken1 = + omap2_cm_read_mod_reg(CORE_MOD, CM_ICLKEN1); + cm_context.core_cm_iclken2 = + omap2_cm_read_mod_reg(CORE_MOD, CM_ICLKEN2); + cm_context.core_cm_iclken3 = + omap2_cm_read_mod_reg(CORE_MOD, CM_ICLKEN3); + cm_context.sgx_cm_iclken = + omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_ICLKEN); + cm_context.wkup_cm_iclken = + omap2_cm_read_mod_reg(WKUP_MOD, CM_ICLKEN); + cm_context.dss_cm_iclken = + omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_ICLKEN); + cm_context.cam_cm_iclken = + omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_ICLKEN); + cm_context.per_cm_iclken = + omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_ICLKEN); + cm_context.usbhost_cm_iclken = + omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_ICLKEN); + cm_context.iva2_cm_autoidle2 = + omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_AUTOIDLE2); + cm_context.mpu_cm_autoidle2 = + omap2_cm_read_mod_reg(MPU_MOD, CM_AUTOIDLE2); + cm_context.iva2_cm_clkstctrl = + omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, OMAP2_CM_CLKSTCTRL); + cm_context.mpu_cm_clkstctrl = + omap2_cm_read_mod_reg(MPU_MOD, OMAP2_CM_CLKSTCTRL); + cm_context.core_cm_clkstctrl = + omap2_cm_read_mod_reg(CORE_MOD, OMAP2_CM_CLKSTCTRL); + cm_context.sgx_cm_clkstctrl = + omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, OMAP2_CM_CLKSTCTRL); + cm_context.dss_cm_clkstctrl = + omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, OMAP2_CM_CLKSTCTRL); + cm_context.cam_cm_clkstctrl = + omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, OMAP2_CM_CLKSTCTRL); + cm_context.per_cm_clkstctrl = + omap2_cm_read_mod_reg(OMAP3430_PER_MOD, OMAP2_CM_CLKSTCTRL); + cm_context.neon_cm_clkstctrl = + omap2_cm_read_mod_reg(OMAP3430_NEON_MOD, OMAP2_CM_CLKSTCTRL); + cm_context.usbhost_cm_clkstctrl = + omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, + OMAP2_CM_CLKSTCTRL); + cm_context.core_cm_autoidle1 = + omap2_cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE1); + cm_context.core_cm_autoidle2 = + omap2_cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE2); + cm_context.core_cm_autoidle3 = + omap2_cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE3); + cm_context.wkup_cm_autoidle = + omap2_cm_read_mod_reg(WKUP_MOD, CM_AUTOIDLE); + cm_context.dss_cm_autoidle = + omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_AUTOIDLE); + cm_context.cam_cm_autoidle = + omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_AUTOIDLE); + cm_context.per_cm_autoidle = + omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_AUTOIDLE); + cm_context.usbhost_cm_autoidle = + omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_AUTOIDLE); + cm_context.sgx_cm_sleepdep = + omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, + OMAP3430_CM_SLEEPDEP); + cm_context.dss_cm_sleepdep = + omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, OMAP3430_CM_SLEEPDEP); + cm_context.cam_cm_sleepdep = + omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, OMAP3430_CM_SLEEPDEP); + cm_context.per_cm_sleepdep = + omap2_cm_read_mod_reg(OMAP3430_PER_MOD, OMAP3430_CM_SLEEPDEP); + cm_context.usbhost_cm_sleepdep = + omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, + OMAP3430_CM_SLEEPDEP); + cm_context.cm_clkout_ctrl = + omap2_cm_read_mod_reg(OMAP3430_CCR_MOD, + OMAP3_CM_CLKOUT_CTRL_OFFSET); +} + +void omap3_cm_restore_context(void) +{ + omap2_cm_write_mod_reg(cm_context.iva2_cm_clksel1, OMAP3430_IVA2_MOD, + CM_CLKSEL1); + omap2_cm_write_mod_reg(cm_context.iva2_cm_clksel2, OMAP3430_IVA2_MOD, + CM_CLKSEL2); + omap2_cm_write_mod_reg(cm_context.cm_sysconfig, OCP_MOD, + OMAP3430_CM_SYSCONFIG); + omap2_cm_write_mod_reg(cm_context.sgx_cm_clksel, OMAP3430ES2_SGX_MOD, + CM_CLKSEL); + omap2_cm_write_mod_reg(cm_context.dss_cm_clksel, OMAP3430_DSS_MOD, + CM_CLKSEL); + omap2_cm_write_mod_reg(cm_context.cam_cm_clksel, OMAP3430_CAM_MOD, + CM_CLKSEL); + omap2_cm_write_mod_reg(cm_context.per_cm_clksel, OMAP3430_PER_MOD, + CM_CLKSEL); + omap2_cm_write_mod_reg(cm_context.emu_cm_clksel, OMAP3430_EMU_MOD, + CM_CLKSEL1); + omap2_cm_write_mod_reg(cm_context.emu_cm_clkstctrl, OMAP3430_EMU_MOD, + OMAP2_CM_CLKSTCTRL); + /* + * As per erratum i671, ROM code does not respect the PER DPLL + * programming scheme if CM_AUTOIDLE_PLL.AUTO_PERIPH_DPLL == 1. + * In this case, we need to restore AUTO_PERIPH_DPLL by ourselves. + */ + omap2_cm_write_mod_reg(cm_context.pll_cm_autoidle, PLL_MOD, + CM_AUTOIDLE); + omap2_cm_write_mod_reg(cm_context.pll_cm_autoidle2, PLL_MOD, + CM_AUTOIDLE2); + omap2_cm_write_mod_reg(cm_context.pll_cm_clksel4, PLL_MOD, + OMAP3430ES2_CM_CLKSEL4); + omap2_cm_write_mod_reg(cm_context.pll_cm_clksel5, PLL_MOD, + OMAP3430ES2_CM_CLKSEL5); + omap2_cm_write_mod_reg(cm_context.pll_cm_clken2, PLL_MOD, + OMAP3430ES2_CM_CLKEN2); + omap2_cm_write_mod_reg(cm_context.cm_polctrl, OCP_MOD, + OMAP3430_CM_POLCTRL); + omap2_cm_write_mod_reg(cm_context.iva2_cm_fclken, OMAP3430_IVA2_MOD, + CM_FCLKEN); + omap2_cm_write_mod_reg(cm_context.iva2_cm_clken_pll, OMAP3430_IVA2_MOD, + OMAP3430_CM_CLKEN_PLL); + omap2_cm_write_mod_reg(cm_context.core_cm_fclken1, CORE_MOD, + CM_FCLKEN1); + omap2_cm_write_mod_reg(cm_context.core_cm_fclken3, CORE_MOD, + OMAP3430ES2_CM_FCLKEN3); + omap2_cm_write_mod_reg(cm_context.sgx_cm_fclken, OMAP3430ES2_SGX_MOD, + CM_FCLKEN); + omap2_cm_write_mod_reg(cm_context.wkup_cm_fclken, WKUP_MOD, CM_FCLKEN); + omap2_cm_write_mod_reg(cm_context.dss_cm_fclken, OMAP3430_DSS_MOD, + CM_FCLKEN); + omap2_cm_write_mod_reg(cm_context.cam_cm_fclken, OMAP3430_CAM_MOD, + CM_FCLKEN); + omap2_cm_write_mod_reg(cm_context.per_cm_fclken, OMAP3430_PER_MOD, + CM_FCLKEN); + omap2_cm_write_mod_reg(cm_context.usbhost_cm_fclken, + OMAP3430ES2_USBHOST_MOD, CM_FCLKEN); + omap2_cm_write_mod_reg(cm_context.core_cm_iclken1, CORE_MOD, + CM_ICLKEN1); + omap2_cm_write_mod_reg(cm_context.core_cm_iclken2, CORE_MOD, + CM_ICLKEN2); + omap2_cm_write_mod_reg(cm_context.core_cm_iclken3, CORE_MOD, + CM_ICLKEN3); + omap2_cm_write_mod_reg(cm_context.sgx_cm_iclken, OMAP3430ES2_SGX_MOD, + CM_ICLKEN); + omap2_cm_write_mod_reg(cm_context.wkup_cm_iclken, WKUP_MOD, CM_ICLKEN); + omap2_cm_write_mod_reg(cm_context.dss_cm_iclken, OMAP3430_DSS_MOD, + CM_ICLKEN); + omap2_cm_write_mod_reg(cm_context.cam_cm_iclken, OMAP3430_CAM_MOD, + CM_ICLKEN); + omap2_cm_write_mod_reg(cm_context.per_cm_iclken, OMAP3430_PER_MOD, + CM_ICLKEN); + omap2_cm_write_mod_reg(cm_context.usbhost_cm_iclken, + OMAP3430ES2_USBHOST_MOD, CM_ICLKEN); + omap2_cm_write_mod_reg(cm_context.iva2_cm_autoidle2, OMAP3430_IVA2_MOD, + CM_AUTOIDLE2); + omap2_cm_write_mod_reg(cm_context.mpu_cm_autoidle2, MPU_MOD, + CM_AUTOIDLE2); + omap2_cm_write_mod_reg(cm_context.iva2_cm_clkstctrl, OMAP3430_IVA2_MOD, + OMAP2_CM_CLKSTCTRL); + omap2_cm_write_mod_reg(cm_context.mpu_cm_clkstctrl, MPU_MOD, + OMAP2_CM_CLKSTCTRL); + omap2_cm_write_mod_reg(cm_context.core_cm_clkstctrl, CORE_MOD, + OMAP2_CM_CLKSTCTRL); + omap2_cm_write_mod_reg(cm_context.sgx_cm_clkstctrl, OMAP3430ES2_SGX_MOD, + OMAP2_CM_CLKSTCTRL); + omap2_cm_write_mod_reg(cm_context.dss_cm_clkstctrl, OMAP3430_DSS_MOD, + OMAP2_CM_CLKSTCTRL); + omap2_cm_write_mod_reg(cm_context.cam_cm_clkstctrl, OMAP3430_CAM_MOD, + OMAP2_CM_CLKSTCTRL); + omap2_cm_write_mod_reg(cm_context.per_cm_clkstctrl, OMAP3430_PER_MOD, + OMAP2_CM_CLKSTCTRL); + omap2_cm_write_mod_reg(cm_context.neon_cm_clkstctrl, OMAP3430_NEON_MOD, + OMAP2_CM_CLKSTCTRL); + omap2_cm_write_mod_reg(cm_context.usbhost_cm_clkstctrl, + OMAP3430ES2_USBHOST_MOD, OMAP2_CM_CLKSTCTRL); + omap2_cm_write_mod_reg(cm_context.core_cm_autoidle1, CORE_MOD, + CM_AUTOIDLE1); + omap2_cm_write_mod_reg(cm_context.core_cm_autoidle2, CORE_MOD, + CM_AUTOIDLE2); + omap2_cm_write_mod_reg(cm_context.core_cm_autoidle3, CORE_MOD, + CM_AUTOIDLE3); + omap2_cm_write_mod_reg(cm_context.wkup_cm_autoidle, WKUP_MOD, + CM_AUTOIDLE); + omap2_cm_write_mod_reg(cm_context.dss_cm_autoidle, OMAP3430_DSS_MOD, + CM_AUTOIDLE); + omap2_cm_write_mod_reg(cm_context.cam_cm_autoidle, OMAP3430_CAM_MOD, + CM_AUTOIDLE); + omap2_cm_write_mod_reg(cm_context.per_cm_autoidle, OMAP3430_PER_MOD, + CM_AUTOIDLE); + omap2_cm_write_mod_reg(cm_context.usbhost_cm_autoidle, + OMAP3430ES2_USBHOST_MOD, CM_AUTOIDLE); + omap2_cm_write_mod_reg(cm_context.sgx_cm_sleepdep, OMAP3430ES2_SGX_MOD, + OMAP3430_CM_SLEEPDEP); + omap2_cm_write_mod_reg(cm_context.dss_cm_sleepdep, OMAP3430_DSS_MOD, + OMAP3430_CM_SLEEPDEP); + omap2_cm_write_mod_reg(cm_context.cam_cm_sleepdep, OMAP3430_CAM_MOD, + OMAP3430_CM_SLEEPDEP); + omap2_cm_write_mod_reg(cm_context.per_cm_sleepdep, OMAP3430_PER_MOD, + OMAP3430_CM_SLEEPDEP); + omap2_cm_write_mod_reg(cm_context.usbhost_cm_sleepdep, + OMAP3430ES2_USBHOST_MOD, OMAP3430_CM_SLEEPDEP); + omap2_cm_write_mod_reg(cm_context.cm_clkout_ctrl, OMAP3430_CCR_MOD, + OMAP3_CM_CLKOUT_CTRL_OFFSET); +} + +void omap3_cm_save_scratchpad_contents(u32 *ptr) +{ + *ptr++ = omap2_cm_read_mod_reg(CORE_MOD, CM_CLKSEL); + *ptr++ = omap2_cm_read_mod_reg(WKUP_MOD, CM_CLKSEL); + *ptr++ = omap2_cm_read_mod_reg(PLL_MOD, CM_CLKEN); + + /* + * As per erratum i671, ROM code does not respect the PER DPLL + * programming scheme if CM_AUTOIDLE_PLL..AUTO_PERIPH_DPLL == 1. + * Then, in any case, clear these bits to avoid extra latencies. + */ + *ptr++ = omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE) & + ~OMAP3430_AUTO_PERIPH_DPLL_MASK; + *ptr++ = omap2_cm_read_mod_reg(PLL_MOD, OMAP3430_CM_CLKSEL1_PLL); + *ptr++ = omap2_cm_read_mod_reg(PLL_MOD, OMAP3430_CM_CLKSEL2_PLL); + *ptr++ = omap2_cm_read_mod_reg(PLL_MOD, OMAP3430_CM_CLKSEL3); + *ptr++ = omap2_cm_read_mod_reg(MPU_MOD, OMAP3430_CM_CLKEN_PLL); + *ptr++ = omap2_cm_read_mod_reg(MPU_MOD, OMAP3430_CM_AUTOIDLE_PLL); + *ptr++ = omap2_cm_read_mod_reg(MPU_MOD, OMAP3430_CM_CLKSEL1_PLL); + *ptr++ = omap2_cm_read_mod_reg(MPU_MOD, OMAP3430_CM_CLKSEL2_PLL); +} + +/* + * + */ + +static const struct cm_ll_data omap3xxx_cm_ll_data = { + .split_idlest_reg = &omap3xxx_cm_split_idlest_reg, + .wait_module_ready = &omap3xxx_cm_wait_module_ready, +}; + +int __init omap3xxx_cm_init(const struct omap_prcm_init_data *data) +{ + omap2_clk_legacy_provider_init(TI_CLKM_CM, cm_base.va + + OMAP3430_IVA2_MOD); + return cm_register(&omap3xxx_cm_ll_data); +} + +static void __exit omap3xxx_cm_exit(void) +{ + cm_unregister(&omap3xxx_cm_ll_data); +} +__exitcall(omap3xxx_cm_exit); -- cgit v1.2.3