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/sleep43xx.S | 493 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 493 insertions(+) create mode 100644 arch/arm/mach-omap2/sleep43xx.S (limited to 'arch/arm/mach-omap2/sleep43xx.S') diff --git a/arch/arm/mach-omap2/sleep43xx.S b/arch/arm/mach-omap2/sleep43xx.S new file mode 100644 index 000000000..832c91327 --- /dev/null +++ b/arch/arm/mach-omap2/sleep43xx.S @@ -0,0 +1,493 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Low level suspend code for AM43XX SoCs + * + * Copyright (C) 2013-2018 Texas Instruments Incorporated - https://www.ti.com/ + * Dave Gerlach, Vaibhav Bedia + */ + +#include +#include +#include +#include +#include +#include + +#include "cm33xx.h" +#include "common.h" +#include "iomap.h" +#include "omap-secure.h" +#include "omap44xx.h" +#include "pm-asm-offsets.h" +#include "prm33xx.h" +#include "prcm43xx.h" + +/* replicated define because linux/bitops.h cannot be included in assembly */ +#define BIT(nr) (1 << (nr)) + +#define AM33XX_CM_CLKCTRL_MODULESTATE_DISABLED 0x00030000 +#define AM33XX_CM_CLKCTRL_MODULEMODE_DISABLE 0x0003 +#define AM33XX_CM_CLKCTRL_MODULEMODE_ENABLE 0x0002 + +#define AM43XX_EMIF_POWEROFF_ENABLE 0x1 +#define AM43XX_EMIF_POWEROFF_DISABLE 0x0 + +#define AM43XX_CM_CLKSTCTRL_CLKTRCTRL_SW_SLEEP 0x1 +#define AM43XX_CM_CLKSTCTRL_CLKTRCTRL_HW_AUTO 0x3 + +#define AM43XX_CM_BASE 0x44DF0000 + +#define AM43XX_CM_REGADDR(inst, reg) \ + AM33XX_L4_WK_IO_ADDRESS(AM43XX_CM_BASE + (inst) + (reg)) + +#define AM43XX_CM_MPU_CLKSTCTRL AM43XX_CM_REGADDR(AM43XX_CM_MPU_INST, \ + AM43XX_CM_MPU_MPU_CDOFFS) +#define AM43XX_CM_MPU_MPU_CLKCTRL AM43XX_CM_REGADDR(AM43XX_CM_MPU_INST, \ + AM43XX_CM_MPU_MPU_CLKCTRL_OFFSET) +#define AM43XX_CM_PER_EMIF_CLKCTRL AM43XX_CM_REGADDR(AM43XX_CM_PER_INST, \ + AM43XX_CM_PER_EMIF_CLKCTRL_OFFSET) +#define AM43XX_PRM_EMIF_CTRL_OFFSET 0x0030 + +#define RTC_SECONDS_REG 0x0 +#define RTC_PMIC_REG 0x98 +#define RTC_PMIC_POWER_EN BIT(16) +#define RTC_PMIC_EXT_WAKEUP_STS BIT(12) +#define RTC_PMIC_EXT_WAKEUP_POL BIT(4) +#define RTC_PMIC_EXT_WAKEUP_EN BIT(0) + + .arm + .arch armv7-a + .arch_extension sec + .align 3 + +ENTRY(am43xx_do_wfi) + stmfd sp!, {r4 - r11, lr} @ save registers on stack + + /* Save wfi_flags arg to data space */ + mov r4, r0 + adr r3, am43xx_pm_ro_sram_data + ldr r2, [r3, #AMX3_PM_RO_SRAM_DATA_VIRT_OFFSET] + str r4, [r2, #AMX3_PM_WFI_FLAGS_OFFSET] + +#ifdef CONFIG_CACHE_L2X0 + /* Retrieve l2 cache virt address BEFORE we shut off EMIF */ + ldr r1, get_l2cache_base + blx r1 + mov r8, r0 +#endif + + /* Only flush cache is we know we are losing MPU context */ + tst r4, #WFI_FLAG_FLUSH_CACHE + beq cache_skip_flush + + /* + * Flush all data from the L1 and L2 data cache before disabling + * SCTLR.C bit. + */ + ldr r1, kernel_flush + blx r1 + + /* + * Clear the SCTLR.C bit to prevent further data cache + * allocation. Clearing SCTLR.C would make all the data accesses + * strongly ordered and would not hit the cache. + */ + mrc p15, 0, r0, c1, c0, 0 + bic r0, r0, #(1 << 2) @ Disable the C bit + mcr p15, 0, r0, c1, c0, 0 + isb + dsb + + /* + * Invalidate L1 and L2 data cache. + */ + ldr r1, kernel_flush + blx r1 + +#ifdef CONFIG_CACHE_L2X0 + /* + * Clean and invalidate the L2 cache. + */ +#ifdef CONFIG_PL310_ERRATA_727915 + mov r0, #0x03 + mov r12, #OMAP4_MON_L2X0_DBG_CTRL_INDEX + dsb + smc #0 + dsb +#endif + mov r0, r8 + adr r4, am43xx_pm_ro_sram_data + ldr r3, [r4, #AMX3_PM_RO_SRAM_DATA_VIRT_OFFSET] + + mov r2, r0 + ldr r0, [r2, #L2X0_AUX_CTRL] + str r0, [r3, #AMX3_PM_L2_AUX_CTRL_VAL_OFFSET] + ldr r0, [r2, #L310_PREFETCH_CTRL] + str r0, [r3, #AMX3_PM_L2_PREFETCH_CTRL_VAL_OFFSET] + + ldr r0, l2_val + str r0, [r2, #L2X0_CLEAN_INV_WAY] +wait: + ldr r0, [r2, #L2X0_CLEAN_INV_WAY] + ldr r1, l2_val + ands r0, r0, r1 + bne wait +#ifdef CONFIG_PL310_ERRATA_727915 + mov r0, #0x00 + mov r12, #OMAP4_MON_L2X0_DBG_CTRL_INDEX + dsb + smc #0 + dsb +#endif +l2x_sync: + mov r0, r8 + mov r2, r0 + mov r0, #0x0 + str r0, [r2, #L2X0_CACHE_SYNC] +sync: + ldr r0, [r2, #L2X0_CACHE_SYNC] + ands r0, r0, #0x1 + bne sync +#endif + + /* Restore wfi_flags */ + adr r3, am43xx_pm_ro_sram_data + ldr r2, [r3, #AMX3_PM_RO_SRAM_DATA_VIRT_OFFSET] + ldr r4, [r2, #AMX3_PM_WFI_FLAGS_OFFSET] + +cache_skip_flush: + /* + * If we are trying to enter RTC+DDR mode we must perform + * a read from the rtc address space to ensure translation + * presence in the TLB to avoid page table walk after DDR + * is unavailable. + */ + tst r4, #WFI_FLAG_RTC_ONLY + beq skip_rtc_va_refresh + + adr r3, am43xx_pm_ro_sram_data + ldr r1, [r3, #AMX3_PM_RTC_BASE_VIRT_OFFSET] + ldr r0, [r1] + +skip_rtc_va_refresh: + /* Check if we want self refresh */ + tst r4, #WFI_FLAG_SELF_REFRESH + beq emif_skip_enter_sr + + adr r9, am43xx_emif_sram_table + + ldr r3, [r9, #EMIF_PM_ENTER_SR_OFFSET] + blx r3 + +emif_skip_enter_sr: + /* Only necessary if PER is losing context */ + tst r4, #WFI_FLAG_SAVE_EMIF + beq emif_skip_save + + ldr r3, [r9, #EMIF_PM_SAVE_CONTEXT_OFFSET] + blx r3 + +emif_skip_save: + /* Only can disable EMIF if we have entered self refresh */ + tst r4, #WFI_FLAG_SELF_REFRESH + beq emif_skip_disable + + /* Disable EMIF */ + ldr r1, am43xx_virt_emif_clkctrl + ldr r2, [r1] + bic r2, r2, #AM33XX_CM_CLKCTRL_MODULEMODE_DISABLE + str r2, [r1] + +wait_emif_disable: + ldr r2, [r1] + mov r3, #AM33XX_CM_CLKCTRL_MODULESTATE_DISABLED + cmp r2, r3 + bne wait_emif_disable + +emif_skip_disable: + tst r4, #WFI_FLAG_RTC_ONLY + beq skip_rtc_only + + adr r3, am43xx_pm_ro_sram_data + ldr r1, [r3, #AMX3_PM_RTC_BASE_VIRT_OFFSET] + + ldr r0, [r1, #RTC_PMIC_REG] + orr r0, r0, #RTC_PMIC_POWER_EN + orr r0, r0, #RTC_PMIC_EXT_WAKEUP_STS + orr r0, r0, #RTC_PMIC_EXT_WAKEUP_EN + orr r0, r0, #RTC_PMIC_EXT_WAKEUP_POL + str r0, [r1, #RTC_PMIC_REG] + ldr r0, [r1, #RTC_PMIC_REG] + /* Wait for 2 seconds to lose power */ + mov r3, #2 + ldr r2, [r1, #RTC_SECONDS_REG] +rtc_loop: + ldr r0, [r1, #RTC_SECONDS_REG] + cmp r0, r2 + beq rtc_loop + mov r2, r0 + subs r3, r3, #1 + bne rtc_loop + + b re_enable_emif + +skip_rtc_only: + + tst r4, #WFI_FLAG_WAKE_M3 + beq wkup_m3_skip + + /* + * For the MPU WFI to be registered as an interrupt + * to WKUP_M3, MPU_CLKCTRL.MODULEMODE needs to be set + * to DISABLED + */ + ldr r1, am43xx_virt_mpu_clkctrl + ldr r2, [r1] + bic r2, r2, #AM33XX_CM_CLKCTRL_MODULEMODE_DISABLE + str r2, [r1] + + /* + * Put MPU CLKDM to SW_SLEEP + */ + ldr r1, am43xx_virt_mpu_clkstctrl + mov r2, #AM43XX_CM_CLKSTCTRL_CLKTRCTRL_SW_SLEEP + str r2, [r1] + +wkup_m3_skip: + /* + * Execute a barrier instruction to ensure that all cache, + * TLB and branch predictor maintenance operations issued + * have completed. + */ + dsb + dmb + + /* + * Execute a WFI instruction and wait until the + * STANDBYWFI output is asserted to indicate that the + * CPU is in idle and low power state. CPU can specualatively + * prefetch the instructions so add NOPs after WFI. Sixteen + * NOPs as per Cortex-A9 pipeline. + */ + wfi + + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + + /* We come here in case of an abort due to a late interrupt */ + ldr r1, am43xx_virt_mpu_clkstctrl + mov r2, #AM43XX_CM_CLKSTCTRL_CLKTRCTRL_HW_AUTO + str r2, [r1] + + /* Set MPU_CLKCTRL.MODULEMODE back to ENABLE */ + ldr r1, am43xx_virt_mpu_clkctrl + mov r2, #AM33XX_CM_CLKCTRL_MODULEMODE_ENABLE + str r2, [r1] + +re_enable_emif: + /* Re-enable EMIF */ + ldr r1, am43xx_virt_emif_clkctrl + mov r2, #AM33XX_CM_CLKCTRL_MODULEMODE_ENABLE + str r2, [r1] +wait_emif_enable: + ldr r3, [r1] + cmp r2, r3 + bne wait_emif_enable + + tst r4, #WFI_FLAG_FLUSH_CACHE + beq cache_skip_restore + + /* + * Set SCTLR.C bit to allow data cache allocation + */ + mrc p15, 0, r0, c1, c0, 0 + orr r0, r0, #(1 << 2) @ Enable the C bit + mcr p15, 0, r0, c1, c0, 0 + isb + +cache_skip_restore: + /* Only necessary if PER is losing context */ + tst r4, #WFI_FLAG_SELF_REFRESH + beq emif_skip_exit_sr_abt + + adr r9, am43xx_emif_sram_table + ldr r1, [r9, #EMIF_PM_ABORT_SR_OFFSET] + blx r1 + +emif_skip_exit_sr_abt: + /* Let the suspend code know about the abort */ + mov r0, #1 + ldmfd sp!, {r4 - r11, pc} @ restore regs and return +ENDPROC(am43xx_do_wfi) + + .align +ENTRY(am43xx_resume_offset) + .word . - am43xx_do_wfi + +ENTRY(am43xx_resume_from_deep_sleep) + /* Set MPU CLKSTCTRL to HW AUTO so that CPUidle works properly */ + ldr r1, am43xx_virt_mpu_clkstctrl + mov r2, #AM43XX_CM_CLKSTCTRL_CLKTRCTRL_HW_AUTO + str r2, [r1] + + /* For AM43xx, use EMIF power down until context is restored */ + ldr r2, am43xx_phys_emif_poweroff + mov r1, #AM43XX_EMIF_POWEROFF_ENABLE + str r1, [r2, #0x0] + + /* Re-enable EMIF */ + ldr r1, am43xx_phys_emif_clkctrl + mov r2, #AM33XX_CM_CLKCTRL_MODULEMODE_ENABLE + str r2, [r1] +wait_emif_enable1: + ldr r3, [r1] + cmp r2, r3 + bne wait_emif_enable1 + + adr r9, am43xx_emif_sram_table + + ldr r1, [r9, #EMIF_PM_RESTORE_CONTEXT_OFFSET] + blx r1 + + ldr r1, [r9, #EMIF_PM_EXIT_SR_OFFSET] + blx r1 + + ldr r2, am43xx_phys_emif_poweroff + mov r1, #AM43XX_EMIF_POWEROFF_DISABLE + str r1, [r2, #0x0] + + ldr r1, [r9, #EMIF_PM_RUN_HW_LEVELING] + blx r1 + +#ifdef CONFIG_CACHE_L2X0 + ldr r2, l2_cache_base + ldr r0, [r2, #L2X0_CTRL] + and r0, #0x0f + cmp r0, #1 + beq skip_l2en @ Skip if already enabled + + adr r4, am43xx_pm_ro_sram_data + ldr r3, [r4, #AMX3_PM_RO_SRAM_DATA_PHYS_OFFSET] + ldr r0, [r3, #AMX3_PM_L2_PREFETCH_CTRL_VAL_OFFSET] + + ldr r12, l2_smc1 + dsb + smc #0 + dsb +set_aux_ctrl: + ldr r0, [r3, #AMX3_PM_L2_AUX_CTRL_VAL_OFFSET] + ldr r12, l2_smc2 + dsb + smc #0 + dsb + + /* L2 invalidate on resume */ + ldr r0, l2_val + ldr r2, l2_cache_base + str r0, [r2, #L2X0_INV_WAY] +wait2: + ldr r0, [r2, #L2X0_INV_WAY] + ldr r1, l2_val + ands r0, r0, r1 + bne wait2 +#ifdef CONFIG_PL310_ERRATA_727915 + mov r0, #0x00 + mov r12, #OMAP4_MON_L2X0_DBG_CTRL_INDEX + dsb + smc #0 + dsb +#endif +l2x_sync2: + ldr r2, l2_cache_base + mov r0, #0x0 + str r0, [r2, #L2X0_CACHE_SYNC] +sync2: + ldr r0, [r2, #L2X0_CACHE_SYNC] + ands r0, r0, #0x1 + bne sync2 + + mov r0, #0x1 + ldr r12, l2_smc3 + dsb + smc #0 + dsb +#endif +skip_l2en: + /* We are back. Branch to the common CPU resume routine */ + mov r0, #0 + ldr pc, resume_addr +ENDPROC(am43xx_resume_from_deep_sleep) + +/* + * Local variables + */ + .align +kernel_flush: + .word v7_flush_dcache_all +ddr_start: + .word PAGE_OFFSET + +am43xx_phys_emif_poweroff: + .word (AM43XX_CM_BASE + AM43XX_PRM_DEVICE_INST + \ + AM43XX_PRM_EMIF_CTRL_OFFSET) +am43xx_virt_mpu_clkstctrl: + .word (AM43XX_CM_MPU_CLKSTCTRL) +am43xx_virt_mpu_clkctrl: + .word (AM43XX_CM_MPU_MPU_CLKCTRL) +am43xx_virt_emif_clkctrl: + .word (AM43XX_CM_PER_EMIF_CLKCTRL) +am43xx_phys_emif_clkctrl: + .word (AM43XX_CM_BASE + AM43XX_CM_PER_INST + \ + AM43XX_CM_PER_EMIF_CLKCTRL_OFFSET) + +#ifdef CONFIG_CACHE_L2X0 +/* L2 cache related defines for AM437x */ +get_l2cache_base: + .word omap4_get_l2cache_base +l2_cache_base: + .word OMAP44XX_L2CACHE_BASE +l2_smc1: + .word OMAP4_MON_L2X0_PREFETCH_INDEX +l2_smc2: + .word OMAP4_MON_L2X0_AUXCTRL_INDEX +l2_smc3: + .word OMAP4_MON_L2X0_CTRL_INDEX +l2_val: + .word 0xffff +#endif + +.align 3 +/* DDR related defines */ +ENTRY(am43xx_emif_sram_table) + .space EMIF_PM_FUNCTIONS_SIZE + +ENTRY(am43xx_pm_sram) + .word am43xx_do_wfi + .word am43xx_do_wfi_sz + .word am43xx_resume_offset + .word am43xx_emif_sram_table + .word am43xx_pm_ro_sram_data + +resume_addr: + .word cpu_resume - PAGE_OFFSET + 0x80000000 +.align 3 + +ENTRY(am43xx_pm_ro_sram_data) + .space AMX3_PM_RO_SRAM_DATA_SIZE + +ENTRY(am43xx_do_wfi_sz) + .word . - am43xx_do_wfi -- cgit v1.2.3