diff options
author | 2023-02-21 18:24:12 -0800 | |
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committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/bcma/driver_chipcommon_pmu.c | |
download | linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip |
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 '')
-rw-r--r-- | drivers/bcma/driver_chipcommon_pmu.c | 670 |
1 files changed, 670 insertions, 0 deletions
diff --git a/drivers/bcma/driver_chipcommon_pmu.c b/drivers/bcma/driver_chipcommon_pmu.c new file mode 100644 index 000000000..263ef6fa1 --- /dev/null +++ b/drivers/bcma/driver_chipcommon_pmu.c @@ -0,0 +1,670 @@ +/* + * Broadcom specific AMBA + * ChipCommon Power Management Unit driver + * + * Copyright 2009, Michael Buesch <m@bues.ch> + * Copyright 2007, 2011, Broadcom Corporation + * Copyright 2011, 2012, Hauke Mehrtens <hauke@hauke-m.de> + * + * Licensed under the GNU/GPL. See COPYING for details. + */ + +#include "bcma_private.h" +#include <linux/export.h> +#include <linux/bcma/bcma.h> + +u32 bcma_chipco_pll_read(struct bcma_drv_cc *cc, u32 offset) +{ + bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_ADDR, offset); + bcma_pmu_read32(cc, BCMA_CC_PMU_PLLCTL_ADDR); + return bcma_pmu_read32(cc, BCMA_CC_PMU_PLLCTL_DATA); +} +EXPORT_SYMBOL_GPL(bcma_chipco_pll_read); + +void bcma_chipco_pll_write(struct bcma_drv_cc *cc, u32 offset, u32 value) +{ + bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_ADDR, offset); + bcma_pmu_read32(cc, BCMA_CC_PMU_PLLCTL_ADDR); + bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_DATA, value); +} +EXPORT_SYMBOL_GPL(bcma_chipco_pll_write); + +void bcma_chipco_pll_maskset(struct bcma_drv_cc *cc, u32 offset, u32 mask, + u32 set) +{ + bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_ADDR, offset); + bcma_pmu_read32(cc, BCMA_CC_PMU_PLLCTL_ADDR); + bcma_pmu_maskset32(cc, BCMA_CC_PMU_PLLCTL_DATA, mask, set); +} +EXPORT_SYMBOL_GPL(bcma_chipco_pll_maskset); + +void bcma_chipco_chipctl_maskset(struct bcma_drv_cc *cc, + u32 offset, u32 mask, u32 set) +{ + bcma_pmu_write32(cc, BCMA_CC_PMU_CHIPCTL_ADDR, offset); + bcma_pmu_read32(cc, BCMA_CC_PMU_CHIPCTL_ADDR); + bcma_pmu_maskset32(cc, BCMA_CC_PMU_CHIPCTL_DATA, mask, set); +} +EXPORT_SYMBOL_GPL(bcma_chipco_chipctl_maskset); + +void bcma_chipco_regctl_maskset(struct bcma_drv_cc *cc, u32 offset, u32 mask, + u32 set) +{ + bcma_pmu_write32(cc, BCMA_CC_PMU_REGCTL_ADDR, offset); + bcma_pmu_read32(cc, BCMA_CC_PMU_REGCTL_ADDR); + bcma_pmu_maskset32(cc, BCMA_CC_PMU_REGCTL_DATA, mask, set); +} +EXPORT_SYMBOL_GPL(bcma_chipco_regctl_maskset); + +static u32 bcma_pmu_xtalfreq(struct bcma_drv_cc *cc) +{ + u32 ilp_ctl, alp_hz; + + if (!(bcma_pmu_read32(cc, BCMA_CC_PMU_STAT) & + BCMA_CC_PMU_STAT_EXT_LPO_AVAIL)) + return 0; + + bcma_pmu_write32(cc, BCMA_CC_PMU_XTAL_FREQ, + BIT(BCMA_CC_PMU_XTAL_FREQ_MEASURE_SHIFT)); + usleep_range(1000, 2000); + + ilp_ctl = bcma_pmu_read32(cc, BCMA_CC_PMU_XTAL_FREQ); + ilp_ctl &= BCMA_CC_PMU_XTAL_FREQ_ILPCTL_MASK; + + bcma_pmu_write32(cc, BCMA_CC_PMU_XTAL_FREQ, 0); + + alp_hz = ilp_ctl * 32768 / 4; + return (alp_hz + 50000) / 100000 * 100; +} + +static void bcma_pmu2_pll_init0(struct bcma_drv_cc *cc, u32 xtalfreq) +{ + struct bcma_bus *bus = cc->core->bus; + u32 freq_tgt_target = 0, freq_tgt_current; + u32 pll0, mask; + + switch (bus->chipinfo.id) { + case BCMA_CHIP_ID_BCM43142: + /* pmu2_xtaltab0_adfll_485 */ + switch (xtalfreq) { + case 12000: + freq_tgt_target = 0x50D52; + break; + case 20000: + freq_tgt_target = 0x307FE; + break; + case 26000: + freq_tgt_target = 0x254EA; + break; + case 37400: + freq_tgt_target = 0x19EF8; + break; + case 52000: + freq_tgt_target = 0x12A75; + break; + } + break; + } + + if (!freq_tgt_target) { + bcma_err(bus, "Unknown TGT frequency for xtalfreq %d\n", + xtalfreq); + return; + } + + pll0 = bcma_chipco_pll_read(cc, BCMA_CC_PMU15_PLL_PLLCTL0); + freq_tgt_current = (pll0 & BCMA_CC_PMU15_PLL_PC0_FREQTGT_MASK) >> + BCMA_CC_PMU15_PLL_PC0_FREQTGT_SHIFT; + + if (freq_tgt_current == freq_tgt_target) { + bcma_debug(bus, "Target TGT frequency already set\n"); + return; + } + + /* Turn off PLL */ + switch (bus->chipinfo.id) { + case BCMA_CHIP_ID_BCM43142: + mask = (u32)~(BCMA_RES_4314_HT_AVAIL | + BCMA_RES_4314_MACPHY_CLK_AVAIL); + + bcma_pmu_mask32(cc, BCMA_CC_PMU_MINRES_MSK, mask); + bcma_pmu_mask32(cc, BCMA_CC_PMU_MAXRES_MSK, mask); + bcma_wait_value(cc->core, BCMA_CLKCTLST, + BCMA_CLKCTLST_HAVEHT, 0, 20000); + break; + } + + pll0 &= ~BCMA_CC_PMU15_PLL_PC0_FREQTGT_MASK; + pll0 |= freq_tgt_target << BCMA_CC_PMU15_PLL_PC0_FREQTGT_SHIFT; + bcma_chipco_pll_write(cc, BCMA_CC_PMU15_PLL_PLLCTL0, pll0); + + /* Flush */ + if (cc->pmu.rev >= 2) + bcma_pmu_set32(cc, BCMA_CC_PMU_CTL, BCMA_CC_PMU_CTL_PLL_UPD); + + /* TODO: Do we need to update OTP? */ +} + +static void bcma_pmu_pll_init(struct bcma_drv_cc *cc) +{ + struct bcma_bus *bus = cc->core->bus; + u32 xtalfreq = bcma_pmu_xtalfreq(cc); + + switch (bus->chipinfo.id) { + case BCMA_CHIP_ID_BCM43142: + if (xtalfreq == 0) + xtalfreq = 20000; + bcma_pmu2_pll_init0(cc, xtalfreq); + break; + } +} + +static void bcma_pmu_resources_init(struct bcma_drv_cc *cc) +{ + struct bcma_bus *bus = cc->core->bus; + u32 min_msk = 0, max_msk = 0; + + switch (bus->chipinfo.id) { + case BCMA_CHIP_ID_BCM4313: + min_msk = 0x200D; + max_msk = 0xFFFF; + break; + case BCMA_CHIP_ID_BCM43142: + min_msk = BCMA_RES_4314_LPLDO_PU | + BCMA_RES_4314_PMU_SLEEP_DIS | + BCMA_RES_4314_PMU_BG_PU | + BCMA_RES_4314_CBUCK_LPOM_PU | + BCMA_RES_4314_CBUCK_PFM_PU | + BCMA_RES_4314_CLDO_PU | + BCMA_RES_4314_LPLDO2_LVM | + BCMA_RES_4314_WL_PMU_PU | + BCMA_RES_4314_LDO3P3_PU | + BCMA_RES_4314_OTP_PU | + BCMA_RES_4314_WL_PWRSW_PU | + BCMA_RES_4314_LQ_AVAIL | + BCMA_RES_4314_LOGIC_RET | + BCMA_RES_4314_MEM_SLEEP | + BCMA_RES_4314_MACPHY_RET | + BCMA_RES_4314_WL_CORE_READY; + max_msk = 0x3FFFFFFF; + break; + default: + bcma_debug(bus, "PMU resource config unknown or not needed for device 0x%04X\n", + bus->chipinfo.id); + } + + /* Set the resource masks. */ + if (min_msk) + bcma_pmu_write32(cc, BCMA_CC_PMU_MINRES_MSK, min_msk); + if (max_msk) + bcma_pmu_write32(cc, BCMA_CC_PMU_MAXRES_MSK, max_msk); + + /* + * Add some delay; allow resources to come up and settle. + * Delay is required for SoC (early init). + */ + usleep_range(2000, 2500); +} + +/* Disable to allow reading SPROM. Don't know the advantages of enabling it. */ +void bcma_chipco_bcm4331_ext_pa_lines_ctl(struct bcma_drv_cc *cc, bool enable) +{ + struct bcma_bus *bus = cc->core->bus; + u32 val; + + val = bcma_cc_read32(cc, BCMA_CC_CHIPCTL); + if (enable) { + val |= BCMA_CHIPCTL_4331_EXTPA_EN; + if (bus->chipinfo.pkg == 9 || bus->chipinfo.pkg == 11) + val |= BCMA_CHIPCTL_4331_EXTPA_ON_GPIO2_5; + else if (bus->chipinfo.rev > 0) + val |= BCMA_CHIPCTL_4331_EXTPA_EN2; + } else { + val &= ~BCMA_CHIPCTL_4331_EXTPA_EN; + val &= ~BCMA_CHIPCTL_4331_EXTPA_EN2; + val &= ~BCMA_CHIPCTL_4331_EXTPA_ON_GPIO2_5; + } + bcma_cc_write32(cc, BCMA_CC_CHIPCTL, val); +} + +static void bcma_pmu_workarounds(struct bcma_drv_cc *cc) +{ + struct bcma_bus *bus = cc->core->bus; + + switch (bus->chipinfo.id) { + case BCMA_CHIP_ID_BCM4313: + /* + * enable 12 mA drive strength for 4313 and set chipControl + * register bit 1 + */ + bcma_chipco_chipctl_maskset(cc, 0, + ~BCMA_CCTRL_4313_12MA_LED_DRIVE, + BCMA_CCTRL_4313_12MA_LED_DRIVE); + break; + case BCMA_CHIP_ID_BCM4331: + case BCMA_CHIP_ID_BCM43431: + /* Ext PA lines must be enabled for tx on BCM4331 */ + bcma_chipco_bcm4331_ext_pa_lines_ctl(cc, true); + break; + case BCMA_CHIP_ID_BCM43224: + case BCMA_CHIP_ID_BCM43421: + /* + * enable 12 mA drive strength for 43224 and set chipControl + * register bit 15 + */ + if (bus->chipinfo.rev == 0) { + bcma_cc_maskset32(cc, BCMA_CC_CHIPCTL, + ~BCMA_CCTRL_43224_GPIO_TOGGLE, + BCMA_CCTRL_43224_GPIO_TOGGLE); + bcma_chipco_chipctl_maskset(cc, 0, + ~BCMA_CCTRL_43224A0_12MA_LED_DRIVE, + BCMA_CCTRL_43224A0_12MA_LED_DRIVE); + } else { + bcma_chipco_chipctl_maskset(cc, 0, + ~BCMA_CCTRL_43224B0_12MA_LED_DRIVE, + BCMA_CCTRL_43224B0_12MA_LED_DRIVE); + } + break; + default: + bcma_debug(bus, "Workarounds unknown or not needed for device 0x%04X\n", + bus->chipinfo.id); + } +} + +void bcma_pmu_early_init(struct bcma_drv_cc *cc) +{ + struct bcma_bus *bus = cc->core->bus; + u32 pmucap; + + if (cc->core->id.rev >= 35 && + cc->capabilities_ext & BCMA_CC_CAP_EXT_AOB_PRESENT) { + cc->pmu.core = bcma_find_core(bus, BCMA_CORE_PMU); + if (!cc->pmu.core) + bcma_warn(bus, "Couldn't find expected PMU core"); + } + if (!cc->pmu.core) + cc->pmu.core = cc->core; + + pmucap = bcma_pmu_read32(cc, BCMA_CC_PMU_CAP); + cc->pmu.rev = (pmucap & BCMA_CC_PMU_CAP_REVISION); + + bcma_debug(bus, "Found rev %u PMU (capabilities 0x%08X)\n", cc->pmu.rev, + pmucap); +} + +void bcma_pmu_init(struct bcma_drv_cc *cc) +{ + if (cc->pmu.rev == 1) + bcma_pmu_mask32(cc, BCMA_CC_PMU_CTL, + ~BCMA_CC_PMU_CTL_NOILPONW); + else + bcma_pmu_set32(cc, BCMA_CC_PMU_CTL, + BCMA_CC_PMU_CTL_NOILPONW); + + bcma_pmu_pll_init(cc); + bcma_pmu_resources_init(cc); + bcma_pmu_workarounds(cc); +} + +u32 bcma_pmu_get_alp_clock(struct bcma_drv_cc *cc) +{ + struct bcma_bus *bus = cc->core->bus; + + switch (bus->chipinfo.id) { + case BCMA_CHIP_ID_BCM4313: + case BCMA_CHIP_ID_BCM43224: + case BCMA_CHIP_ID_BCM43225: + case BCMA_CHIP_ID_BCM43227: + case BCMA_CHIP_ID_BCM43228: + case BCMA_CHIP_ID_BCM4331: + case BCMA_CHIP_ID_BCM43421: + case BCMA_CHIP_ID_BCM43428: + case BCMA_CHIP_ID_BCM43431: + case BCMA_CHIP_ID_BCM4716: + case BCMA_CHIP_ID_BCM47162: + case BCMA_CHIP_ID_BCM4748: + case BCMA_CHIP_ID_BCM4749: + case BCMA_CHIP_ID_BCM5357: + case BCMA_CHIP_ID_BCM53572: + case BCMA_CHIP_ID_BCM6362: + /* always 20Mhz */ + return 20000 * 1000; + case BCMA_CHIP_ID_BCM4706: + case BCMA_CHIP_ID_BCM5356: + /* always 25Mhz */ + return 25000 * 1000; + case BCMA_CHIP_ID_BCM43460: + case BCMA_CHIP_ID_BCM4352: + case BCMA_CHIP_ID_BCM4360: + if (cc->status & BCMA_CC_CHIPST_4360_XTAL_40MZ) + return 40000 * 1000; + else + return 20000 * 1000; + default: + bcma_warn(bus, "No ALP clock specified for %04X device, pmu rev. %d, using default %d Hz\n", + bus->chipinfo.id, cc->pmu.rev, BCMA_CC_PMU_ALP_CLOCK); + } + return BCMA_CC_PMU_ALP_CLOCK; +} + +/* Find the output of the "m" pll divider given pll controls that start with + * pllreg "pll0" i.e. 12 for main 6 for phy, 0 for misc. + */ +static u32 bcma_pmu_pll_clock(struct bcma_drv_cc *cc, u32 pll0, u32 m) +{ + u32 tmp, div, ndiv, p1, p2, fc; + struct bcma_bus *bus = cc->core->bus; + + BUG_ON((pll0 & 3) || (pll0 > BCMA_CC_PMU4716_MAINPLL_PLL0)); + + BUG_ON(!m || m > 4); + + if (bus->chipinfo.id == BCMA_CHIP_ID_BCM5357 || + bus->chipinfo.id == BCMA_CHIP_ID_BCM4749) { + /* Detect failure in clock setting */ + tmp = bcma_cc_read32(cc, BCMA_CC_CHIPSTAT); + if (tmp & 0x40000) + return 133 * 1000000; + } + + tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PPL_P1P2_OFF); + p1 = (tmp & BCMA_CC_PPL_P1_MASK) >> BCMA_CC_PPL_P1_SHIFT; + p2 = (tmp & BCMA_CC_PPL_P2_MASK) >> BCMA_CC_PPL_P2_SHIFT; + + tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PPL_M14_OFF); + div = (tmp >> ((m - 1) * BCMA_CC_PPL_MDIV_WIDTH)) & + BCMA_CC_PPL_MDIV_MASK; + + tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PPL_NM5_OFF); + ndiv = (tmp & BCMA_CC_PPL_NDIV_MASK) >> BCMA_CC_PPL_NDIV_SHIFT; + + /* Do calculation in Mhz */ + fc = bcma_pmu_get_alp_clock(cc) / 1000000; + fc = (p1 * ndiv * fc) / p2; + + /* Return clock in Hertz */ + return (fc / div) * 1000000; +} + +static u32 bcma_pmu_pll_clock_bcm4706(struct bcma_drv_cc *cc, u32 pll0, u32 m) +{ + u32 tmp, ndiv, p1div, p2div; + u32 clock; + + BUG_ON(!m || m > 4); + + /* Get N, P1 and P2 dividers to determine CPU clock */ + tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PMU6_4706_PROCPLL_OFF); + ndiv = (tmp & BCMA_CC_PMU6_4706_PROC_NDIV_INT_MASK) + >> BCMA_CC_PMU6_4706_PROC_NDIV_INT_SHIFT; + p1div = (tmp & BCMA_CC_PMU6_4706_PROC_P1DIV_MASK) + >> BCMA_CC_PMU6_4706_PROC_P1DIV_SHIFT; + p2div = (tmp & BCMA_CC_PMU6_4706_PROC_P2DIV_MASK) + >> BCMA_CC_PMU6_4706_PROC_P2DIV_SHIFT; + + tmp = bcma_cc_read32(cc, BCMA_CC_CHIPSTAT); + if (tmp & BCMA_CC_CHIPST_4706_PKG_OPTION) + /* Low cost bonding: Fixed reference clock 25MHz and m = 4 */ + clock = (25000000 / 4) * ndiv * p2div / p1div; + else + /* Fixed reference clock 25MHz and m = 2 */ + clock = (25000000 / 2) * ndiv * p2div / p1div; + + if (m == BCMA_CC_PMU5_MAINPLL_SSB) + clock = clock / 4; + + return clock; +} + +/* query bus clock frequency for PMU-enabled chipcommon */ +u32 bcma_pmu_get_bus_clock(struct bcma_drv_cc *cc) +{ + struct bcma_bus *bus = cc->core->bus; + + switch (bus->chipinfo.id) { + case BCMA_CHIP_ID_BCM4716: + case BCMA_CHIP_ID_BCM4748: + case BCMA_CHIP_ID_BCM47162: + return bcma_pmu_pll_clock(cc, BCMA_CC_PMU4716_MAINPLL_PLL0, + BCMA_CC_PMU5_MAINPLL_SSB); + case BCMA_CHIP_ID_BCM5356: + return bcma_pmu_pll_clock(cc, BCMA_CC_PMU5356_MAINPLL_PLL0, + BCMA_CC_PMU5_MAINPLL_SSB); + case BCMA_CHIP_ID_BCM5357: + case BCMA_CHIP_ID_BCM4749: + return bcma_pmu_pll_clock(cc, BCMA_CC_PMU5357_MAINPLL_PLL0, + BCMA_CC_PMU5_MAINPLL_SSB); + case BCMA_CHIP_ID_BCM4706: + return bcma_pmu_pll_clock_bcm4706(cc, + BCMA_CC_PMU4706_MAINPLL_PLL0, + BCMA_CC_PMU5_MAINPLL_SSB); + case BCMA_CHIP_ID_BCM53572: + return 75000000; + default: + bcma_warn(bus, "No bus clock specified for %04X device, pmu rev. %d, using default %d Hz\n", + bus->chipinfo.id, cc->pmu.rev, BCMA_CC_PMU_HT_CLOCK); + } + return BCMA_CC_PMU_HT_CLOCK; +} +EXPORT_SYMBOL_GPL(bcma_pmu_get_bus_clock); + +/* query cpu clock frequency for PMU-enabled chipcommon */ +u32 bcma_pmu_get_cpu_clock(struct bcma_drv_cc *cc) +{ + struct bcma_bus *bus = cc->core->bus; + + if (bus->chipinfo.id == BCMA_CHIP_ID_BCM53572) + return 300000000; + + /* New PMUs can have different clock for bus and CPU */ + if (cc->pmu.rev >= 5) { + u32 pll; + switch (bus->chipinfo.id) { + case BCMA_CHIP_ID_BCM4706: + return bcma_pmu_pll_clock_bcm4706(cc, + BCMA_CC_PMU4706_MAINPLL_PLL0, + BCMA_CC_PMU5_MAINPLL_CPU); + case BCMA_CHIP_ID_BCM5356: + pll = BCMA_CC_PMU5356_MAINPLL_PLL0; + break; + case BCMA_CHIP_ID_BCM5357: + case BCMA_CHIP_ID_BCM4749: + pll = BCMA_CC_PMU5357_MAINPLL_PLL0; + break; + default: + pll = BCMA_CC_PMU4716_MAINPLL_PLL0; + break; + } + + return bcma_pmu_pll_clock(cc, pll, BCMA_CC_PMU5_MAINPLL_CPU); + } + + /* On old PMUs CPU has the same clock as the bus */ + return bcma_pmu_get_bus_clock(cc); +} + +static void bcma_pmu_spuravoid_pll_write(struct bcma_drv_cc *cc, u32 offset, + u32 value) +{ + bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_ADDR, offset); + bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_DATA, value); +} + +void bcma_pmu_spuravoid_pllupdate(struct bcma_drv_cc *cc, int spuravoid) +{ + u32 tmp = 0; + u8 phypll_offset = 0; + u8 bcm5357_bcm43236_p1div[] = {0x1, 0x5, 0x5}; + u8 bcm5357_bcm43236_ndiv[] = {0x30, 0xf6, 0xfc}; + struct bcma_bus *bus = cc->core->bus; + + switch (bus->chipinfo.id) { + case BCMA_CHIP_ID_BCM5357: + case BCMA_CHIP_ID_BCM4749: + case BCMA_CHIP_ID_BCM53572: + /* 5357[ab]0, 43236[ab]0, and 6362b0 */ + + /* + * BCM5357 needs to touch PLL1_PLLCTL[02], + * so offset PLL0_PLLCTL[02] by 6 + */ + phypll_offset = (bus->chipinfo.id == BCMA_CHIP_ID_BCM5357 || + bus->chipinfo.id == BCMA_CHIP_ID_BCM4749 || + bus->chipinfo.id == BCMA_CHIP_ID_BCM53572) ? 6 : 0; + + /* RMW only the P1 divider */ + bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_ADDR, + BCMA_CC_PMU_PLL_CTL0 + phypll_offset); + tmp = bcma_pmu_read32(cc, BCMA_CC_PMU_PLLCTL_DATA); + tmp &= (~(BCMA_CC_PMU1_PLL0_PC0_P1DIV_MASK)); + tmp |= (bcm5357_bcm43236_p1div[spuravoid] << BCMA_CC_PMU1_PLL0_PC0_P1DIV_SHIFT); + bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_DATA, tmp); + + /* RMW only the int feedback divider */ + bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_ADDR, + BCMA_CC_PMU_PLL_CTL2 + phypll_offset); + tmp = bcma_pmu_read32(cc, BCMA_CC_PMU_PLLCTL_DATA); + tmp &= ~(BCMA_CC_PMU1_PLL0_PC2_NDIV_INT_MASK); + tmp |= (bcm5357_bcm43236_ndiv[spuravoid]) << BCMA_CC_PMU1_PLL0_PC2_NDIV_INT_SHIFT; + bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_DATA, tmp); + + tmp = BCMA_CC_PMU_CTL_PLL_UPD; + break; + + case BCMA_CHIP_ID_BCM4331: + case BCMA_CHIP_ID_BCM43431: + if (spuravoid == 2) { + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0, + 0x11500014); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2, + 0x0FC00a08); + } else if (spuravoid == 1) { + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0, + 0x11500014); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2, + 0x0F600a08); + } else { + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0, + 0x11100014); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2, + 0x03000a08); + } + tmp = BCMA_CC_PMU_CTL_PLL_UPD; + break; + + case BCMA_CHIP_ID_BCM43224: + case BCMA_CHIP_ID_BCM43225: + case BCMA_CHIP_ID_BCM43421: + if (spuravoid == 1) { + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0, + 0x11500010); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1, + 0x000C0C06); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2, + 0x0F600a08); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3, + 0x00000000); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4, + 0x2001E920); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5, + 0x88888815); + } else { + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0, + 0x11100010); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1, + 0x000c0c06); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2, + 0x03000a08); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3, + 0x00000000); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4, + 0x200005c0); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5, + 0x88888815); + } + tmp = BCMA_CC_PMU_CTL_PLL_UPD; + break; + + case BCMA_CHIP_ID_BCM4716: + case BCMA_CHIP_ID_BCM4748: + case BCMA_CHIP_ID_BCM47162: + if (spuravoid == 1) { + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0, + 0x11500060); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1, + 0x080C0C06); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2, + 0x0F600000); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3, + 0x00000000); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4, + 0x2001E924); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5, + 0x88888815); + } else { + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0, + 0x11100060); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1, + 0x080c0c06); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2, + 0x03000000); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3, + 0x00000000); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4, + 0x200005c0); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5, + 0x88888815); + } + + tmp = BCMA_CC_PMU_CTL_PLL_UPD | BCMA_CC_PMU_CTL_NOILPONW; + break; + + case BCMA_CHIP_ID_BCM43131: + case BCMA_CHIP_ID_BCM43217: + case BCMA_CHIP_ID_BCM43227: + case BCMA_CHIP_ID_BCM43228: + case BCMA_CHIP_ID_BCM43428: + /* LCNXN */ + /* + * PLL Settings for spur avoidance on/off mode, + * no on2 support for 43228A0 + */ + if (spuravoid == 1) { + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0, + 0x01100014); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1, + 0x040C0C06); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2, + 0x03140A08); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3, + 0x00333333); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4, + 0x202C2820); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5, + 0x88888815); + } else { + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0, + 0x11100014); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1, + 0x040c0c06); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2, + 0x03000a08); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3, + 0x00000000); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4, + 0x200005c0); + bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5, + 0x88888815); + } + tmp = BCMA_CC_PMU_CTL_PLL_UPD; + break; + default: + bcma_err(bus, "Unknown spuravoidance settings for chip 0x%04X, not changing PLL\n", + bus->chipinfo.id); + break; + } + + tmp |= bcma_pmu_read32(cc, BCMA_CC_PMU_CTL); + bcma_pmu_write32(cc, BCMA_CC_PMU_CTL, tmp); +} +EXPORT_SYMBOL_GPL(bcma_pmu_spuravoid_pllupdate); |