| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071081091101111121131141151161171181191201211221231241251261271281291301311321331341351361371381391401411421431441451461471481491501511521531541551561571581591601611621631641651661671681691701711721731741751761771781791801811821831841851861871881891901911921931941951961971981992002012022032042052062072082092102112122132142152162172182192202212222232242252262272282292302312322332342352362372382392402412422432442452462472482492502512522532542552562572582592602612622632642652662672682692702712722732742752762772782792802812822832842852862872882892902912922932942952962972982993003013023033043053063073083093103113123133143153163173183193203213223233243253263273283293303313323333343353363373383393403413423433443453463473483493503513523533543553563573583593603613623633643653663673683693703713723733743753763773783793803813823833843853863873883893903913923933943953963973983994004014024034044054064074084094104114124134144154164174184194204214224234244254264274284294304314324334344354364374384394404414424434444454464474484494504514524534544554564574584594604614624634644654664674684694704714724734744754764774784794804814824834844854864874884894904914924934944954964974984995005015025035045055065075085095105115125135145155165175185195205215225235245255265275285295305315325335345355365375385395405415425435445455465475485495505515525535545555565575585595605615625635645655665675685695705715725735745755765775785795805815825835845855865875885895905915925935945955965975985996006016026036046056066076086096106116126136146156166176186196206216226236246256266276286296306316326336346356366376386396406416426436446456466476486496506516526536546556566576586596606616626636646656666676686696706716726736746756766776786796806816826836846856866876886896906916926936946956966976986997007017027037047057067077087097107117127137147157167177187197207217227237247257267277287297307317327337347357367377387397407417427437447457467477487497507517527537547557567577587597607617627637647657667677687697707717727737747757767777787797807817827837847857867877887897907917927937947957967977987998008018028038048058068078088098108118128138148158168178188198208218228238248258268278288298308318328338348358368378388398408418428438448458468478488498508518528538548558568578588598608618628638648658668678688698708718728738748758768778788798808818828838848858868878888898908918928938948958968978988999009019029039049059069079089099109119129139149159169179189199209219229239249259269279289299309319329339349359369379389399409419429439449459469479489499509519529539549559569579589599609619629639649659669679689699709719729739749759769779789799809819829839849859869879889899909919929939949959969979989991000100110021003100410051006100710081009101010111012101310141015101610171018101910201021102210231024102510261027102810291030103110321033103410351036103710381039104010411042104310441045104610471048104910501051105210531054105510561057105810591060106110621063106410651066106710681069107010711072107310741075107610771078107910801081108210831084108510861087108810891090109110921093109410951096109710981099110011011102110311041105110611071108110911101111111211131114111511161117111811191120112111221123112411251126112711281129113011311132113311341135113611371138113911401141114211431144114511461147114811491150115111521153115411551156115711581159116011611162116311641165116611671168116911701171117211731174117511761177117811791180118111821183118411851186118711881189119011911192119311941195119611971198119912001201120212031204120512061207120812091210121112121213121412151216121712181219122012211222122312241225122612271228122912301231123212331234123512361237123812391240124112421243124412451246124712481249125012511252125312541255125612571258125912601261126212631264126512661267126812691270127112721273127412751276127712781279128012811282128312841285128612871288128912901291129212931294129512961297129812991300130113021303130413051306130713081309131013111312131313141315131613171318131913201321132213231324132513261327132813291330133113321333133413351336133713381339134013411342134313441345134613471348134913501351135213531354135513561357135813591360136113621363136413651366136713681369137013711372137313741375137613771378137913801381138213831384138513861387138813891390139113921393139413951396139713981399140014011402140314041405140614071408140914101411141214131414141514161417141814191420142114221423142414251426142714281429143014311432143314341435143614371438143914401441144214431444144514461447144814491450145114521453145414551456145714581459146014611462146314641465146614671468146914701471147214731474147514761477147814791480148114821483148414851486148714881489149014911492149314941495149614971498149915001501150215031504150515061507150815091510151115121513151415151516151715181519152015211522152315241525152615271528152915301531153215331534153515361537153815391540154115421543154415451546154715481549155015511552155315541555155615571558155915601561156215631564156515661567156815691570157115721573157415751576157715781579158015811582158315841585158615871588158915901591159215931594159515961597159815991600160116021603160416051606160716081609161016111612161316141615161616171618161916201621162216231624162516261627162816291630163116321633163416351636163716381639164016411642164316441645164616471648164916501651165216531654165516561657165816591660166116621663166416651666166716681669167016711672167316741675167616771678167916801681168216831684168516861687168816891690169116921693169416951696169716981699170017011702170317041705170617071708170917101711171217131714171517161717171817191720172117221723172417251726172717281729173017311732173317341735173617371738173917401741174217431744174517461747174817491750175117521753175417551756175717581759176017611762176317641765176617671768176917701771177217731774177517761777177817791780178117821783178417851786178717881789179017911792179317941795179617971798179918001801180218031804180518061807180818091810181118121813181418151816181718181819182018211822182318241825182618271828182918301831183218331834183518361837183818391840184118421843184418451846184718481849185018511852185318541855185618571858185918601861186218631864186518661867186818691870187118721873187418751876187718781879188018811882188318841885188618871888188918901891189218931894189518961897189818991900190119021903190419051906190719081909191019111912191319141915191619171918191919201921192219231924192519261927192819291930193119321933193419351936193719381939194019411942194319441945194619471948194919501951195219531954195519561957195819591960196119621963196419651966196719681969197019711972197319741975197619771978197919801981198219831984198519861987198819891990199119921993199419951996199719981999200020012002200320042005200620072008200920102011201220132014201520162017201820192020202120222023202420252026202720282029203020312032203320342035203620372038203920402041204220432044204520462047204820492050205120522053205420552056205720582059206020612062206320642065206620672068206920702071207220732074207520762077207820792080208120822083208420852086208720882089209020912092209320942095209620972098209921002101210221032104210521062107210821092110211121122113211421152116211721182119212021212122212321242125212621272128212921302131213221332134213521362137213821392140214121422143214421452146214721482149215021512152215321542155215621572158215921602161216221632164216521662167216821692170217121722173217421752176217721782179218021812182218321842185218621872188218921902191219221932194219521962197219821992200220122022203220422052206220722082209221022112212221322142215221622172218221922202221222222232224222522262227222822292230223122322233223422352236223722382239224022412242224322442245224622472248224922502251225222532254225522562257225822592260226122622263226422652266226722682269227022712272227322742275227622772278227922802281228222832284228522862287228822892290229122922293229422952296229722982299230023012302230323042305230623072308230923102311231223132314231523162317231823192320232123222323232423252326232723282329233023312332233323342335233623372338233923402341234223432344234523462347234823492350235123522353235423552356235723582359236023612362236323642365236623672368236923702371237223732374237523762377237823792380238123822383238423852386238723882389239023912392239323942395239623972398239924002401240224032404240524062407240824092410241124122413241424152416241724182419242024212422242324242425242624272428242924302431243224332434243524362437243824392440244124422443244424452446244724482449245024512452245324542455245624572458245924602461246224632464246524662467246824692470247124722473247424752476247724782479248024812482248324842485248624872488248924902491249224932494249524962497249824992500250125022503250425052506250725082509251025112512251325142515251625172518251925202521252225232524252525262527252825292530253125322533253425352536253725382539254025412542254325442545254625472548254925502551255225532554255525562557255825592560256125622563256425652566256725682569257025712572257325742575257625772578257925802581258225832584258525862587258825892590259125922593259425952596259725982599260026012602260326042605260626072608260926102611261226132614261526162617261826192620262126222623262426252626262726282629263026312632263326342635263626372638263926402641264226432644264526462647264826492650265126522653265426552656265726582659266026612662266326642665266626672668266926702671267226732674267526762677267826792680268126822683268426852686268726882689269026912692269326942695269626972698269927002701270227032704270527062707270827092710271127122713271427152716271727182719272027212722272327242725272627272728272927302731273227332734273527362737273827392740274127422743274427452746274727482749275027512752275327542755275627572758275927602761276227632764276527662767276827692770277127722773277427752776277727782779278027812782278327842785278627872788278927902791279227932794279527962797279827992800280128022803280428052806280728082809281028112812281328142815281628172818281928202821282228232824282528262827282828292830283128322833283428352836283728382839284028412842284328442845284628472848284928502851285228532854285528562857285828592860286128622863286428652866286728682869287028712872287328742875287628772878287928802881288228832884288528862887288828892890289128922893289428952896289728982899290029012902290329042905290629072908290929102911291229132914291529162917291829192920292129222923292429252926292729282929293029312932293329342935293629372938293929402941294229432944294529462947294829492950295129522953295429552956295729582959296029612962296329642965296629672968296929702971297229732974297529762977297829792980298129822983298429852986298729882989299029912992299329942995299629972998299930003001300230033004300530063007300830093010301130123013301430153016301730183019302030213022302330243025302630273028302930303031303230333034303530363037303830393040304130423043304430453046304730483049305030513052305330543055305630573058305930603061306230633064306530663067306830693070307130723073307430753076307730783079308030813082308330843085308630873088308930903091309230933094309530963097309830993100310131023103310431053106310731083109311031113112311331143115311631173118311931203121312231233124312531263127312831293130313131323133313431353136313731383139314031413142314331443145314631473148314931503151315231533154315531563157315831593160316131623163316431653166316731683169317031713172317331743175317631773178317931803181318231833184318531863187318831893190319131923193319431953196319731983199320032013202 |
- // SPDX-License-Identifier: GPL-2.0
- /*
- * Copyright (c) 2015, 2018, The Linux Foundation. All rights reserved.
- * Copyright (c) 2021, 2023-2024, Qualcomm Innovation Center, Inc. All rights reserved.
- */
- #include <linux/kernel.h>
- #include <linux/export.h>
- #include <linux/clk-provider.h>
- #include <linux/regmap.h>
- #include <linux/delay.h>
- #include "clk-alpha-pll.h"
- #include "common.h"
- #define PLL_MODE(p) ((p)->offset + 0x0)
- # define PLL_OUTCTRL BIT(0)
- # define PLL_BYPASSNL BIT(1)
- # define PLL_RESET_N BIT(2)
- # define PLL_OFFLINE_REQ BIT(7)
- # define PLL_LOCK_COUNT_SHIFT 8
- # define PLL_LOCK_COUNT_MASK 0x3f
- # define PLL_BIAS_COUNT_SHIFT 14
- # define PLL_BIAS_COUNT_MASK 0x3f
- # define PLL_VOTE_FSM_ENA BIT(20)
- # define PLL_FSM_ENA BIT(20)
- # define PLL_VOTE_FSM_RESET BIT(21)
- # define PLL_UPDATE BIT(22)
- # define PLL_UPDATE_BYPASS BIT(23)
- # define PLL_FSM_LEGACY_MODE BIT(24)
- # define PLL_OFFLINE_ACK BIT(28)
- # define ALPHA_PLL_ACK_LATCH BIT(29)
- # define PLL_ACTIVE_FLAG BIT(30)
- # define PLL_LOCK_DET BIT(31)
- #define PLL_L_VAL(p) ((p)->offset + (p)->regs[PLL_OFF_L_VAL])
- #define PLL_CAL_L_VAL(p) ((p)->offset + (p)->regs[PLL_OFF_CAL_L_VAL])
- #define PLL_ALPHA_VAL(p) ((p)->offset + (p)->regs[PLL_OFF_ALPHA_VAL])
- #define PLL_ALPHA_VAL_U(p) ((p)->offset + (p)->regs[PLL_OFF_ALPHA_VAL_U])
- #define PLL_USER_CTL(p) ((p)->offset + (p)->regs[PLL_OFF_USER_CTL])
- # define PLL_POST_DIV_SHIFT 8
- # define PLL_POST_DIV_MASK(p) GENMASK((p)->width ? (p)->width - 1 : 3, 0)
- # define PLL_ALPHA_MSB BIT(15)
- # define PLL_ALPHA_EN BIT(24)
- # define PLL_ALPHA_MODE BIT(25)
- # define PLL_VCO_SHIFT 20
- # define PLL_VCO_MASK 0x3
- #define PLL_USER_CTL_U(p) ((p)->offset + (p)->regs[PLL_OFF_USER_CTL_U])
- #define PLL_USER_CTL_U1(p) ((p)->offset + (p)->regs[PLL_OFF_USER_CTL_U1])
- #define PLL_CONFIG_CTL(p) ((p)->offset + (p)->regs[PLL_OFF_CONFIG_CTL])
- #define PLL_CONFIG_CTL_U(p) ((p)->offset + (p)->regs[PLL_OFF_CONFIG_CTL_U])
- #define PLL_CONFIG_CTL_U1(p) ((p)->offset + (p)->regs[PLL_OFF_CONFIG_CTL_U1])
- #define PLL_CONFIG_CTL_U2(p) ((p)->offset + (p)->regs[PLL_OFF_CONFIG_CTL_U2])
- #define PLL_TEST_CTL(p) ((p)->offset + (p)->regs[PLL_OFF_TEST_CTL])
- #define PLL_TEST_CTL_U(p) ((p)->offset + (p)->regs[PLL_OFF_TEST_CTL_U])
- #define PLL_TEST_CTL_U1(p) ((p)->offset + (p)->regs[PLL_OFF_TEST_CTL_U1])
- #define PLL_TEST_CTL_U2(p) ((p)->offset + (p)->regs[PLL_OFF_TEST_CTL_U2])
- #define PLL_TEST_CTL_U3(p) ((p)->offset + (p)->regs[PLL_OFF_TEST_CTL_U3])
- #define PLL_STATUS(p) ((p)->offset + (p)->regs[PLL_OFF_STATUS])
- #define PLL_OPMODE(p) ((p)->offset + (p)->regs[PLL_OFF_OPMODE])
- #define PLL_FRAC(p) ((p)->offset + (p)->regs[PLL_OFF_FRAC])
- #define GET_PLL_TYPE(pll) (((pll)->regs - clk_alpha_pll_regs[0]) / PLL_OFF_MAX_REGS)
- const u8 clk_alpha_pll_regs[][PLL_OFF_MAX_REGS] = {
- [CLK_ALPHA_PLL_TYPE_DEFAULT] = {
- [PLL_OFF_L_VAL] = 0x04,
- [PLL_OFF_ALPHA_VAL] = 0x08,
- [PLL_OFF_ALPHA_VAL_U] = 0x0c,
- [PLL_OFF_USER_CTL] = 0x10,
- [PLL_OFF_USER_CTL_U] = 0x14,
- [PLL_OFF_CONFIG_CTL] = 0x18,
- [PLL_OFF_TEST_CTL] = 0x1c,
- [PLL_OFF_TEST_CTL_U] = 0x20,
- [PLL_OFF_STATUS] = 0x24,
- },
- [CLK_ALPHA_PLL_TYPE_HUAYRA] = {
- [PLL_OFF_L_VAL] = 0x04,
- [PLL_OFF_ALPHA_VAL] = 0x08,
- [PLL_OFF_USER_CTL] = 0x10,
- [PLL_OFF_CONFIG_CTL] = 0x14,
- [PLL_OFF_CONFIG_CTL_U] = 0x18,
- [PLL_OFF_TEST_CTL] = 0x1c,
- [PLL_OFF_TEST_CTL_U] = 0x20,
- [PLL_OFF_STATUS] = 0x24,
- },
- [CLK_ALPHA_PLL_TYPE_HUAYRA_APSS] = {
- [PLL_OFF_L_VAL] = 0x08,
- [PLL_OFF_ALPHA_VAL] = 0x10,
- [PLL_OFF_USER_CTL] = 0x18,
- [PLL_OFF_CONFIG_CTL] = 0x20,
- [PLL_OFF_CONFIG_CTL_U] = 0x24,
- [PLL_OFF_STATUS] = 0x28,
- [PLL_OFF_TEST_CTL] = 0x30,
- [PLL_OFF_TEST_CTL_U] = 0x34,
- },
- [CLK_ALPHA_PLL_TYPE_HUAYRA_2290] = {
- [PLL_OFF_L_VAL] = 0x04,
- [PLL_OFF_ALPHA_VAL] = 0x08,
- [PLL_OFF_USER_CTL] = 0x0c,
- [PLL_OFF_CONFIG_CTL] = 0x10,
- [PLL_OFF_CONFIG_CTL_U] = 0x14,
- [PLL_OFF_CONFIG_CTL_U1] = 0x18,
- [PLL_OFF_TEST_CTL] = 0x1c,
- [PLL_OFF_TEST_CTL_U] = 0x20,
- [PLL_OFF_TEST_CTL_U1] = 0x24,
- [PLL_OFF_OPMODE] = 0x28,
- [PLL_OFF_STATUS] = 0x38,
- },
- [CLK_ALPHA_PLL_TYPE_BRAMMO] = {
- [PLL_OFF_L_VAL] = 0x04,
- [PLL_OFF_ALPHA_VAL] = 0x08,
- [PLL_OFF_ALPHA_VAL_U] = 0x0c,
- [PLL_OFF_USER_CTL] = 0x10,
- [PLL_OFF_CONFIG_CTL] = 0x18,
- [PLL_OFF_TEST_CTL] = 0x1c,
- [PLL_OFF_STATUS] = 0x24,
- },
- [CLK_ALPHA_PLL_TYPE_FABIA] = {
- [PLL_OFF_L_VAL] = 0x04,
- [PLL_OFF_USER_CTL] = 0x0c,
- [PLL_OFF_USER_CTL_U] = 0x10,
- [PLL_OFF_CONFIG_CTL] = 0x14,
- [PLL_OFF_CONFIG_CTL_U] = 0x18,
- [PLL_OFF_TEST_CTL] = 0x1c,
- [PLL_OFF_TEST_CTL_U] = 0x20,
- [PLL_OFF_STATUS] = 0x24,
- [PLL_OFF_OPMODE] = 0x2c,
- [PLL_OFF_FRAC] = 0x38,
- },
- [CLK_ALPHA_PLL_TYPE_TRION] = {
- [PLL_OFF_L_VAL] = 0x04,
- [PLL_OFF_CAL_L_VAL] = 0x08,
- [PLL_OFF_USER_CTL] = 0x0c,
- [PLL_OFF_USER_CTL_U] = 0x10,
- [PLL_OFF_USER_CTL_U1] = 0x14,
- [PLL_OFF_CONFIG_CTL] = 0x18,
- [PLL_OFF_CONFIG_CTL_U] = 0x1c,
- [PLL_OFF_CONFIG_CTL_U1] = 0x20,
- [PLL_OFF_TEST_CTL] = 0x24,
- [PLL_OFF_TEST_CTL_U] = 0x28,
- [PLL_OFF_TEST_CTL_U1] = 0x2c,
- [PLL_OFF_STATUS] = 0x30,
- [PLL_OFF_OPMODE] = 0x38,
- [PLL_OFF_ALPHA_VAL] = 0x40,
- },
- [CLK_ALPHA_PLL_TYPE_AGERA] = {
- [PLL_OFF_L_VAL] = 0x04,
- [PLL_OFF_ALPHA_VAL] = 0x08,
- [PLL_OFF_USER_CTL] = 0x0c,
- [PLL_OFF_CONFIG_CTL] = 0x10,
- [PLL_OFF_CONFIG_CTL_U] = 0x14,
- [PLL_OFF_TEST_CTL] = 0x18,
- [PLL_OFF_TEST_CTL_U] = 0x1c,
- [PLL_OFF_STATUS] = 0x2c,
- },
- [CLK_ALPHA_PLL_TYPE_ZONDA] = {
- [PLL_OFF_L_VAL] = 0x04,
- [PLL_OFF_ALPHA_VAL] = 0x08,
- [PLL_OFF_USER_CTL] = 0x0c,
- [PLL_OFF_CONFIG_CTL] = 0x10,
- [PLL_OFF_CONFIG_CTL_U] = 0x14,
- [PLL_OFF_CONFIG_CTL_U1] = 0x18,
- [PLL_OFF_TEST_CTL] = 0x1c,
- [PLL_OFF_TEST_CTL_U] = 0x20,
- [PLL_OFF_TEST_CTL_U1] = 0x24,
- [PLL_OFF_OPMODE] = 0x28,
- [PLL_OFF_STATUS] = 0x38,
- },
- [CLK_ALPHA_PLL_TYPE_LUCID_EVO] = {
- [PLL_OFF_OPMODE] = 0x04,
- [PLL_OFF_STATUS] = 0x0c,
- [PLL_OFF_L_VAL] = 0x10,
- [PLL_OFF_ALPHA_VAL] = 0x14,
- [PLL_OFF_USER_CTL] = 0x18,
- [PLL_OFF_USER_CTL_U] = 0x1c,
- [PLL_OFF_CONFIG_CTL] = 0x20,
- [PLL_OFF_CONFIG_CTL_U] = 0x24,
- [PLL_OFF_CONFIG_CTL_U1] = 0x28,
- [PLL_OFF_TEST_CTL] = 0x2c,
- [PLL_OFF_TEST_CTL_U] = 0x30,
- [PLL_OFF_TEST_CTL_U1] = 0x34,
- },
- [CLK_ALPHA_PLL_TYPE_LUCID_OLE] = {
- [PLL_OFF_OPMODE] = 0x04,
- [PLL_OFF_STATE] = 0x08,
- [PLL_OFF_STATUS] = 0x0c,
- [PLL_OFF_L_VAL] = 0x10,
- [PLL_OFF_ALPHA_VAL] = 0x14,
- [PLL_OFF_USER_CTL] = 0x18,
- [PLL_OFF_USER_CTL_U] = 0x1c,
- [PLL_OFF_CONFIG_CTL] = 0x20,
- [PLL_OFF_CONFIG_CTL_U] = 0x24,
- [PLL_OFF_CONFIG_CTL_U1] = 0x28,
- [PLL_OFF_TEST_CTL] = 0x2c,
- [PLL_OFF_TEST_CTL_U] = 0x30,
- [PLL_OFF_TEST_CTL_U1] = 0x34,
- [PLL_OFF_TEST_CTL_U2] = 0x38,
- },
- [CLK_ALPHA_PLL_TYPE_PONGO_ELU] = {
- [PLL_OFF_OPMODE] = 0x04,
- [PLL_OFF_STATE] = 0x08,
- [PLL_OFF_STATUS] = 0x0c,
- [PLL_OFF_L_VAL] = 0x10,
- [PLL_OFF_USER_CTL] = 0x14,
- [PLL_OFF_USER_CTL_U] = 0x18,
- [PLL_OFF_CONFIG_CTL] = 0x1c,
- [PLL_OFF_CONFIG_CTL_U] = 0x20,
- [PLL_OFF_CONFIG_CTL_U1] = 0x24,
- [PLL_OFF_CONFIG_CTL_U2] = 0x28,
- [PLL_OFF_TEST_CTL] = 0x2c,
- [PLL_OFF_TEST_CTL_U] = 0x30,
- [PLL_OFF_TEST_CTL_U1] = 0x34,
- [PLL_OFF_TEST_CTL_U2] = 0x38,
- [PLL_OFF_TEST_CTL_U3] = 0x3c,
- },
- [CLK_ALPHA_PLL_TYPE_TAYCAN_ELU] = {
- [PLL_OFF_OPMODE] = 0x04,
- [PLL_OFF_STATE] = 0x08,
- [PLL_OFF_STATUS] = 0x0c,
- [PLL_OFF_L_VAL] = 0x10,
- [PLL_OFF_ALPHA_VAL] = 0x14,
- [PLL_OFF_USER_CTL] = 0x18,
- [PLL_OFF_USER_CTL_U] = 0x1c,
- [PLL_OFF_CONFIG_CTL] = 0x20,
- [PLL_OFF_CONFIG_CTL_U] = 0x24,
- [PLL_OFF_CONFIG_CTL_U1] = 0x28,
- [PLL_OFF_TEST_CTL] = 0x2c,
- [PLL_OFF_TEST_CTL_U] = 0x30,
- },
- [CLK_ALPHA_PLL_TYPE_RIVIAN_EVO] = {
- [PLL_OFF_OPMODE] = 0x04,
- [PLL_OFF_STATUS] = 0x0c,
- [PLL_OFF_L_VAL] = 0x10,
- [PLL_OFF_USER_CTL] = 0x14,
- [PLL_OFF_USER_CTL_U] = 0x18,
- [PLL_OFF_CONFIG_CTL] = 0x1c,
- [PLL_OFF_CONFIG_CTL_U] = 0x20,
- [PLL_OFF_CONFIG_CTL_U1] = 0x24,
- [PLL_OFF_TEST_CTL] = 0x28,
- [PLL_OFF_TEST_CTL_U] = 0x2c,
- },
- [CLK_ALPHA_PLL_TYPE_RIVIAN_ELU] = {
- [PLL_OFF_OPMODE] = 0x04,
- [PLL_OFF_STATUS] = 0x0c,
- [PLL_OFF_L_VAL] = 0x10,
- [PLL_OFF_USER_CTL] = 0x14,
- [PLL_OFF_USER_CTL_U] = 0x18,
- [PLL_OFF_CONFIG_CTL] = 0x1c,
- [PLL_OFF_CONFIG_CTL_U] = 0x20,
- [PLL_OFF_CONFIG_CTL_U1] = 0x24,
- [PLL_OFF_CONFIG_CTL_U2] = 0x28,
- [PLL_OFF_TEST_CTL] = 0x2c,
- [PLL_OFF_TEST_CTL_U] = 0x30,
- },
- [CLK_ALPHA_PLL_TYPE_DEFAULT_EVO] = {
- [PLL_OFF_L_VAL] = 0x04,
- [PLL_OFF_ALPHA_VAL] = 0x08,
- [PLL_OFF_ALPHA_VAL_U] = 0x0c,
- [PLL_OFF_TEST_CTL] = 0x10,
- [PLL_OFF_TEST_CTL_U] = 0x14,
- [PLL_OFF_USER_CTL] = 0x18,
- [PLL_OFF_USER_CTL_U] = 0x1c,
- [PLL_OFF_CONFIG_CTL] = 0x20,
- [PLL_OFF_STATUS] = 0x24,
- },
- [CLK_ALPHA_PLL_TYPE_BRAMMO_EVO] = {
- [PLL_OFF_L_VAL] = 0x04,
- [PLL_OFF_ALPHA_VAL] = 0x08,
- [PLL_OFF_ALPHA_VAL_U] = 0x0c,
- [PLL_OFF_TEST_CTL] = 0x10,
- [PLL_OFF_TEST_CTL_U] = 0x14,
- [PLL_OFF_USER_CTL] = 0x18,
- [PLL_OFF_CONFIG_CTL] = 0x1C,
- [PLL_OFF_STATUS] = 0x20,
- },
- [CLK_ALPHA_PLL_TYPE_STROMER] = {
- [PLL_OFF_L_VAL] = 0x08,
- [PLL_OFF_ALPHA_VAL] = 0x10,
- [PLL_OFF_ALPHA_VAL_U] = 0x14,
- [PLL_OFF_USER_CTL] = 0x18,
- [PLL_OFF_USER_CTL_U] = 0x1c,
- [PLL_OFF_CONFIG_CTL] = 0x20,
- [PLL_OFF_STATUS] = 0x28,
- [PLL_OFF_TEST_CTL] = 0x30,
- [PLL_OFF_TEST_CTL_U] = 0x34,
- },
- [CLK_ALPHA_PLL_TYPE_STROMER_PLUS] = {
- [PLL_OFF_L_VAL] = 0x04,
- [PLL_OFF_USER_CTL] = 0x08,
- [PLL_OFF_USER_CTL_U] = 0x0c,
- [PLL_OFF_CONFIG_CTL] = 0x10,
- [PLL_OFF_TEST_CTL] = 0x14,
- [PLL_OFF_TEST_CTL_U] = 0x18,
- [PLL_OFF_STATUS] = 0x1c,
- [PLL_OFF_ALPHA_VAL] = 0x24,
- [PLL_OFF_ALPHA_VAL_U] = 0x28,
- },
- [CLK_ALPHA_PLL_TYPE_ZONDA_OLE] = {
- [PLL_OFF_L_VAL] = 0x04,
- [PLL_OFF_ALPHA_VAL] = 0x08,
- [PLL_OFF_USER_CTL] = 0x0c,
- [PLL_OFF_USER_CTL_U] = 0x10,
- [PLL_OFF_CONFIG_CTL] = 0x14,
- [PLL_OFF_CONFIG_CTL_U] = 0x18,
- [PLL_OFF_CONFIG_CTL_U1] = 0x1c,
- [PLL_OFF_CONFIG_CTL_U2] = 0x20,
- [PLL_OFF_TEST_CTL] = 0x24,
- [PLL_OFF_TEST_CTL_U] = 0x28,
- [PLL_OFF_TEST_CTL_U1] = 0x2c,
- [PLL_OFF_OPMODE] = 0x30,
- [PLL_OFF_STATUS] = 0x3c,
- },
- [CLK_ALPHA_PLL_TYPE_NSS_HUAYRA] = {
- [PLL_OFF_L_VAL] = 0x04,
- [PLL_OFF_ALPHA_VAL] = 0x08,
- [PLL_OFF_TEST_CTL] = 0x0c,
- [PLL_OFF_TEST_CTL_U] = 0x10,
- [PLL_OFF_USER_CTL] = 0x14,
- [PLL_OFF_CONFIG_CTL] = 0x18,
- [PLL_OFF_CONFIG_CTL_U] = 0x1c,
- [PLL_OFF_STATUS] = 0x20,
- },
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_regs);
- /*
- * Even though 40 bits are present, use only 32 for ease of calculation.
- */
- #define ALPHA_REG_BITWIDTH 40
- #define ALPHA_REG_16BIT_WIDTH 16
- #define ALPHA_BITWIDTH 32U
- #define ALPHA_SHIFT(w) min(w, ALPHA_BITWIDTH)
- #define ALPHA_PLL_STATUS_REG_SHIFT 8
- #define PLL_HUAYRA_M_WIDTH 8
- #define PLL_HUAYRA_M_SHIFT 8
- #define PLL_HUAYRA_M_MASK 0xff
- #define PLL_HUAYRA_N_SHIFT 0
- #define PLL_HUAYRA_N_MASK 0xff
- #define PLL_HUAYRA_ALPHA_WIDTH 16
- #define PLL_STANDBY 0x0
- #define PLL_RUN 0x1
- #define PLL_OUT_MASK 0x7
- #define PLL_RATE_MARGIN 500
- /* TRION PLL specific settings and offsets */
- #define TRION_PLL_CAL_VAL 0x44
- #define TRION_PCAL_DONE BIT(26)
- /* LUCID PLL specific settings and offsets */
- #define LUCID_PCAL_DONE BIT(27)
- /* LUCID 5LPE PLL specific settings and offsets */
- #define LUCID_5LPE_PCAL_DONE BIT(11)
- #define LUCID_5LPE_ALPHA_PLL_ACK_LATCH BIT(13)
- #define LUCID_5LPE_PLL_LATCH_INPUT BIT(14)
- #define LUCID_5LPE_ENABLE_VOTE_RUN BIT(21)
- /* LUCID EVO PLL specific settings and offsets */
- #define LUCID_EVO_PCAL_NOT_DONE BIT(8)
- #define LUCID_EVO_ENABLE_VOTE_RUN BIT(25)
- #define LUCID_EVO_PLL_L_VAL_MASK GENMASK(15, 0)
- #define LUCID_EVO_PLL_CAL_L_VAL_SHIFT 16
- #define LUCID_OLE_PLL_RINGOSC_CAL_L_VAL_SHIFT 24
- /* PONGO ELU PLL specific setting and offsets */
- #define PONGO_PLL_OUT_MASK GENMASK(1, 0)
- #define PONGO_PLL_L_VAL_MASK GENMASK(11, 0)
- #define PONGO_XO_PRESENT BIT(10)
- #define PONGO_CLOCK_SELECT BIT(12)
- /* ZONDA PLL specific */
- #define ZONDA_PLL_OUT_MASK 0xf
- #define ZONDA_STAY_IN_CFA BIT(16)
- #define ZONDA_PLL_FREQ_LOCK_DET BIT(29)
- #define pll_alpha_width(p) \
- ((PLL_ALPHA_VAL_U(p) - PLL_ALPHA_VAL(p) == 4) ? \
- ALPHA_REG_BITWIDTH : ALPHA_REG_16BIT_WIDTH)
- #define pll_has_64bit_config(p) ((PLL_CONFIG_CTL_U(p) - PLL_CONFIG_CTL(p)) == 4)
- #define to_clk_alpha_pll(_hw) container_of(to_clk_regmap(_hw), \
- struct clk_alpha_pll, clkr)
- #define to_clk_alpha_pll_postdiv(_hw) container_of(to_clk_regmap(_hw), \
- struct clk_alpha_pll_postdiv, clkr)
- static int wait_for_pll(struct clk_alpha_pll *pll, u32 mask, bool inverse,
- const char *action)
- {
- u32 val;
- int count;
- int ret;
- const char *name = clk_hw_get_name(&pll->clkr.hw);
- ret = regmap_read(pll->clkr.regmap, PLL_MODE(pll), &val);
- if (ret)
- return ret;
- /* Pongo PLLs using a 32KHz reference can take upwards of 1500us to lock. */
- for (count = 1500; count > 0; count--) {
- ret = regmap_read(pll->clkr.regmap, PLL_MODE(pll), &val);
- if (ret)
- return ret;
- if (inverse && !(val & mask))
- return 0;
- else if ((val & mask) == mask)
- return 0;
- udelay(1);
- }
- WARN(1, "%s failed to %s!\n", name, action);
- return -ETIMEDOUT;
- }
- #define wait_for_pll_enable_active(pll) \
- wait_for_pll(pll, PLL_ACTIVE_FLAG, 0, "enable")
- #define wait_for_pll_enable_lock(pll) \
- wait_for_pll(pll, PLL_LOCK_DET, 0, "enable")
- #define wait_for_zonda_pll_freq_lock(pll) \
- wait_for_pll(pll, ZONDA_PLL_FREQ_LOCK_DET, 0, "freq enable")
- #define wait_for_pll_disable(pll) \
- wait_for_pll(pll, PLL_ACTIVE_FLAG, 1, "disable")
- #define wait_for_pll_offline(pll) \
- wait_for_pll(pll, PLL_OFFLINE_ACK, 0, "offline")
- #define wait_for_pll_update(pll) \
- wait_for_pll(pll, PLL_UPDATE, 1, "update")
- #define wait_for_pll_update_ack_set(pll) \
- wait_for_pll(pll, ALPHA_PLL_ACK_LATCH, 0, "update_ack_set")
- #define wait_for_pll_update_ack_clear(pll) \
- wait_for_pll(pll, ALPHA_PLL_ACK_LATCH, 1, "update_ack_clear")
- static void clk_alpha_pll_write_config(struct regmap *regmap, unsigned int reg,
- unsigned int val)
- {
- if (val)
- regmap_write(regmap, reg, val);
- }
- void clk_alpha_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
- const struct alpha_pll_config *config)
- {
- u32 val, mask;
- regmap_write(regmap, PLL_L_VAL(pll), config->l);
- regmap_write(regmap, PLL_ALPHA_VAL(pll), config->alpha);
- regmap_write(regmap, PLL_CONFIG_CTL(pll), config->config_ctl_val);
- if (pll_has_64bit_config(pll))
- regmap_write(regmap, PLL_CONFIG_CTL_U(pll),
- config->config_ctl_hi_val);
- if (pll_alpha_width(pll) > 32)
- regmap_write(regmap, PLL_ALPHA_VAL_U(pll), config->alpha_hi);
- val = config->main_output_mask;
- val |= config->aux_output_mask;
- val |= config->aux2_output_mask;
- val |= config->early_output_mask;
- val |= config->pre_div_val;
- val |= config->post_div_val;
- val |= config->vco_val;
- val |= config->alpha_en_mask;
- val |= config->alpha_mode_mask;
- mask = config->main_output_mask;
- mask |= config->aux_output_mask;
- mask |= config->aux2_output_mask;
- mask |= config->early_output_mask;
- mask |= config->pre_div_mask;
- mask |= config->post_div_mask;
- mask |= config->vco_mask;
- mask |= config->alpha_en_mask;
- mask |= config->alpha_mode_mask;
- regmap_update_bits(regmap, PLL_USER_CTL(pll), mask, val);
- if (config->test_ctl_mask)
- regmap_update_bits(regmap, PLL_TEST_CTL(pll),
- config->test_ctl_mask,
- config->test_ctl_val);
- else
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL(pll),
- config->test_ctl_val);
- if (config->test_ctl_hi_mask)
- regmap_update_bits(regmap, PLL_TEST_CTL_U(pll),
- config->test_ctl_hi_mask,
- config->test_ctl_hi_val);
- else
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U(pll),
- config->test_ctl_hi_val);
- if (pll->flags & SUPPORTS_FSM_MODE)
- qcom_pll_set_fsm_mode(regmap, PLL_MODE(pll), 6, 0);
- }
- EXPORT_SYMBOL_GPL(clk_alpha_pll_configure);
- static int clk_alpha_pll_hwfsm_enable(struct clk_hw *hw)
- {
- int ret;
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- u32 val;
- ret = regmap_read(pll->clkr.regmap, PLL_MODE(pll), &val);
- if (ret)
- return ret;
- val |= PLL_FSM_ENA;
- if (pll->flags & SUPPORTS_OFFLINE_REQ)
- val &= ~PLL_OFFLINE_REQ;
- ret = regmap_write(pll->clkr.regmap, PLL_MODE(pll), val);
- if (ret)
- return ret;
- /* Make sure enable request goes through before waiting for update */
- mb();
- return wait_for_pll_enable_active(pll);
- }
- static void clk_alpha_pll_hwfsm_disable(struct clk_hw *hw)
- {
- int ret;
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- u32 val;
- ret = regmap_read(pll->clkr.regmap, PLL_MODE(pll), &val);
- if (ret)
- return;
- if (pll->flags & SUPPORTS_OFFLINE_REQ) {
- ret = regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll),
- PLL_OFFLINE_REQ, PLL_OFFLINE_REQ);
- if (ret)
- return;
- ret = wait_for_pll_offline(pll);
- if (ret)
- return;
- }
- /* Disable hwfsm */
- ret = regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll),
- PLL_FSM_ENA, 0);
- if (ret)
- return;
- wait_for_pll_disable(pll);
- }
- static int pll_is_enabled(struct clk_hw *hw, u32 mask)
- {
- int ret;
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- u32 val;
- ret = regmap_read(pll->clkr.regmap, PLL_MODE(pll), &val);
- if (ret)
- return ret;
- return !!(val & mask);
- }
- static int clk_alpha_pll_hwfsm_is_enabled(struct clk_hw *hw)
- {
- return pll_is_enabled(hw, PLL_ACTIVE_FLAG);
- }
- static int clk_alpha_pll_is_enabled(struct clk_hw *hw)
- {
- return pll_is_enabled(hw, PLL_LOCK_DET);
- }
- static int clk_alpha_pll_enable(struct clk_hw *hw)
- {
- int ret;
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- u32 val, mask;
- mask = PLL_OUTCTRL | PLL_RESET_N | PLL_BYPASSNL;
- ret = regmap_read(pll->clkr.regmap, PLL_MODE(pll), &val);
- if (ret)
- return ret;
- /* If in FSM mode, just vote for it */
- if (val & PLL_VOTE_FSM_ENA) {
- ret = clk_enable_regmap(hw);
- if (ret)
- return ret;
- return wait_for_pll_enable_active(pll);
- }
- /* Skip if already enabled */
- if ((val & mask) == mask)
- return 0;
- ret = regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll),
- PLL_BYPASSNL, PLL_BYPASSNL);
- if (ret)
- return ret;
- /*
- * H/W requires a 5us delay between disabling the bypass and
- * de-asserting the reset.
- */
- mb();
- udelay(5);
- ret = regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll),
- PLL_RESET_N, PLL_RESET_N);
- if (ret)
- return ret;
- ret = wait_for_pll_enable_lock(pll);
- if (ret)
- return ret;
- ret = regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll),
- PLL_OUTCTRL, PLL_OUTCTRL);
- /* Ensure that the write above goes through before returning. */
- mb();
- return ret;
- }
- static void clk_alpha_pll_disable(struct clk_hw *hw)
- {
- int ret;
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- u32 val, mask;
- ret = regmap_read(pll->clkr.regmap, PLL_MODE(pll), &val);
- if (ret)
- return;
- /* If in FSM mode, just unvote it */
- if (val & PLL_VOTE_FSM_ENA) {
- clk_disable_regmap(hw);
- return;
- }
- mask = PLL_OUTCTRL;
- regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll), mask, 0);
- /* Delay of 2 output clock ticks required until output is disabled */
- mb();
- udelay(1);
- mask = PLL_RESET_N | PLL_BYPASSNL;
- regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll), mask, 0);
- }
- static unsigned long
- alpha_pll_calc_rate(u64 prate, u32 l, u32 a, u32 alpha_width)
- {
- return (prate * l) + ((prate * a) >> ALPHA_SHIFT(alpha_width));
- }
- static unsigned long
- alpha_pll_round_rate(unsigned long rate, unsigned long prate, u32 *l, u64 *a,
- u32 alpha_width)
- {
- u64 remainder;
- u64 quotient;
- quotient = rate;
- remainder = do_div(quotient, prate);
- *l = quotient;
- if (!remainder) {
- *a = 0;
- return rate;
- }
- /* Upper ALPHA_BITWIDTH bits of Alpha */
- quotient = remainder << ALPHA_SHIFT(alpha_width);
- remainder = do_div(quotient, prate);
- if (remainder)
- quotient++;
- *a = quotient;
- return alpha_pll_calc_rate(prate, *l, *a, alpha_width);
- }
- static const struct pll_vco *
- alpha_pll_find_vco(const struct clk_alpha_pll *pll, unsigned long rate)
- {
- const struct pll_vco *v = pll->vco_table;
- const struct pll_vco *end = v + pll->num_vco;
- for (; v < end; v++)
- if (rate >= v->min_freq && rate <= v->max_freq)
- return v;
- return NULL;
- }
- static unsigned long
- clk_alpha_pll_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
- {
- u32 l, low, high, ctl;
- u64 a = 0, prate = parent_rate;
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- u32 alpha_width = pll_alpha_width(pll);
- if (regmap_read(pll->clkr.regmap, PLL_L_VAL(pll), &l))
- return 0;
- if (regmap_read(pll->clkr.regmap, PLL_USER_CTL(pll), &ctl))
- return 0;
- if (ctl & PLL_ALPHA_EN) {
- if (regmap_read(pll->clkr.regmap, PLL_ALPHA_VAL(pll), &low))
- return 0;
- if (alpha_width > 32) {
- if (regmap_read(pll->clkr.regmap, PLL_ALPHA_VAL_U(pll),
- &high))
- return 0;
- a = (u64)high << 32 | low;
- } else {
- a = low & GENMASK(alpha_width - 1, 0);
- }
- if (alpha_width > ALPHA_BITWIDTH)
- a >>= alpha_width - ALPHA_BITWIDTH;
- }
- return alpha_pll_calc_rate(prate, l, a, alpha_width);
- }
- static int __clk_alpha_pll_update_latch(struct clk_alpha_pll *pll)
- {
- int ret;
- u32 mode;
- regmap_read(pll->clkr.regmap, PLL_MODE(pll), &mode);
- /* Latch the input to the PLL */
- regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll), PLL_UPDATE,
- PLL_UPDATE);
- /* Wait for 2 reference cycle before checking ACK bit */
- udelay(1);
- /*
- * PLL will latch the new L, Alpha and freq control word.
- * PLL will respond by raising PLL_ACK_LATCH output when new programming
- * has been latched in and PLL is being updated. When
- * UPDATE_LOGIC_BYPASS bit is not set, PLL_UPDATE will be cleared
- * automatically by hardware when PLL_ACK_LATCH is asserted by PLL.
- */
- if (mode & PLL_UPDATE_BYPASS) {
- ret = wait_for_pll_update_ack_set(pll);
- if (ret)
- return ret;
- regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll), PLL_UPDATE, 0);
- } else {
- ret = wait_for_pll_update(pll);
- if (ret)
- return ret;
- }
- ret = wait_for_pll_update_ack_clear(pll);
- if (ret)
- return ret;
- /* Wait for PLL output to stabilize */
- udelay(10);
- return 0;
- }
- static int clk_alpha_pll_update_latch(struct clk_alpha_pll *pll,
- int (*is_enabled)(struct clk_hw *))
- {
- if (!is_enabled(&pll->clkr.hw) ||
- !(pll->flags & SUPPORTS_DYNAMIC_UPDATE))
- return 0;
- return __clk_alpha_pll_update_latch(pll);
- }
- static void clk_alpha_pll_update_configs(struct clk_alpha_pll *pll, const struct pll_vco *vco,
- u32 l, u64 alpha, u32 alpha_width, bool alpha_en)
- {
- regmap_write(pll->clkr.regmap, PLL_L_VAL(pll), l);
- if (alpha_width > ALPHA_BITWIDTH)
- alpha <<= alpha_width - ALPHA_BITWIDTH;
- if (alpha_width > 32)
- regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL_U(pll), upper_32_bits(alpha));
- regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL(pll), lower_32_bits(alpha));
- if (vco) {
- regmap_update_bits(pll->clkr.regmap, PLL_USER_CTL(pll),
- PLL_VCO_MASK << PLL_VCO_SHIFT,
- vco->val << PLL_VCO_SHIFT);
- }
- if (alpha_en)
- regmap_set_bits(pll->clkr.regmap, PLL_USER_CTL(pll), PLL_ALPHA_EN);
- }
- static int __clk_alpha_pll_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long prate,
- int (*is_enabled)(struct clk_hw *))
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- const struct pll_vco *vco;
- u32 l, alpha_width = pll_alpha_width(pll);
- u64 a;
- rate = alpha_pll_round_rate(rate, prate, &l, &a, alpha_width);
- vco = alpha_pll_find_vco(pll, rate);
- if (pll->vco_table && !vco) {
- pr_err("%s: alpha pll not in a valid vco range\n",
- clk_hw_get_name(hw));
- return -EINVAL;
- }
- clk_alpha_pll_update_configs(pll, vco, l, a, alpha_width, true);
- return clk_alpha_pll_update_latch(pll, is_enabled);
- }
- static int clk_alpha_pll_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long prate)
- {
- return __clk_alpha_pll_set_rate(hw, rate, prate,
- clk_alpha_pll_is_enabled);
- }
- static int clk_alpha_pll_hwfsm_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long prate)
- {
- return __clk_alpha_pll_set_rate(hw, rate, prate,
- clk_alpha_pll_hwfsm_is_enabled);
- }
- static int clk_alpha_pll_determine_rate(struct clk_hw *hw,
- struct clk_rate_request *req)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- u32 l, alpha_width = pll_alpha_width(pll);
- u64 a;
- unsigned long min_freq, max_freq;
- req->rate = alpha_pll_round_rate(req->rate, req->best_parent_rate, &l,
- &a, alpha_width);
- if (!pll->vco_table || alpha_pll_find_vco(pll, req->rate))
- return 0;
- min_freq = pll->vco_table[0].min_freq;
- max_freq = pll->vco_table[pll->num_vco - 1].max_freq;
- req->rate = clamp(req->rate, min_freq, max_freq);
- return 0;
- }
- void clk_huayra_2290_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
- const struct alpha_pll_config *config)
- {
- u32 val;
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL(pll), config->config_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U(pll), config->config_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U1(pll), config->config_ctl_hi1_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL(pll), config->test_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U(pll), config->test_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U1(pll), config->test_ctl_hi1_val);
- clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), config->l);
- clk_alpha_pll_write_config(regmap, PLL_ALPHA_VAL(pll), config->alpha);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL(pll), config->user_ctl_val);
- /* Set PLL_BYPASSNL */
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_BYPASSNL, PLL_BYPASSNL);
- regmap_read(regmap, PLL_MODE(pll), &val);
- /* Wait 5 us between setting BYPASS and deasserting reset */
- udelay(5);
- /* Take PLL out from reset state */
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N);
- regmap_read(regmap, PLL_MODE(pll), &val);
- /* Wait 50us for PLL_LOCK_DET bit to go high */
- usleep_range(50, 55);
- /* Enable PLL output */
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, PLL_OUTCTRL);
- }
- EXPORT_SYMBOL_GPL(clk_huayra_2290_pll_configure);
- static unsigned long
- alpha_huayra_pll_calc_rate(u64 prate, u32 l, u32 a)
- {
- /*
- * a contains 16 bit alpha_val in two’s complement number in the range
- * of [-0.5, 0.5).
- */
- if (a >= BIT(PLL_HUAYRA_ALPHA_WIDTH - 1))
- l -= 1;
- return (prate * l) + (prate * a >> PLL_HUAYRA_ALPHA_WIDTH);
- }
- static unsigned long
- alpha_huayra_pll_round_rate(unsigned long rate, unsigned long prate,
- u32 *l, u32 *a)
- {
- u64 remainder;
- u64 quotient;
- quotient = rate;
- remainder = do_div(quotient, prate);
- *l = quotient;
- if (!remainder) {
- *a = 0;
- return rate;
- }
- quotient = remainder << PLL_HUAYRA_ALPHA_WIDTH;
- remainder = do_div(quotient, prate);
- if (remainder)
- quotient++;
- /*
- * alpha_val should be in two’s complement number in the range
- * of [-0.5, 0.5) so if quotient >= 0.5 then increment the l value
- * since alpha value will be subtracted in this case.
- */
- if (quotient >= BIT(PLL_HUAYRA_ALPHA_WIDTH - 1))
- *l += 1;
- *a = quotient;
- return alpha_huayra_pll_calc_rate(prate, *l, *a);
- }
- static unsigned long
- alpha_pll_huayra_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
- {
- u64 rate = parent_rate, tmp;
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- u32 l, alpha = 0, ctl, alpha_m, alpha_n;
- if (regmap_read(pll->clkr.regmap, PLL_L_VAL(pll), &l))
- return 0;
- if (regmap_read(pll->clkr.regmap, PLL_USER_CTL(pll), &ctl))
- return 0;
- if (ctl & PLL_ALPHA_EN) {
- regmap_read(pll->clkr.regmap, PLL_ALPHA_VAL(pll), &alpha);
- /*
- * Depending upon alpha_mode, it can be treated as M/N value or
- * as a two’s complement number. When alpha_mode=1,
- * pll_alpha_val<15:8>=M and pll_apla_val<7:0>=N
- *
- * Fout=FIN*(L+(M/N))
- *
- * M is a signed number (-128 to 127) and N is unsigned
- * (0 to 255). M/N has to be within +/-0.5.
- *
- * When alpha_mode=0, it is a two’s complement number in the
- * range [-0.5, 0.5).
- *
- * Fout=FIN*(L+(alpha_val)/2^16)
- *
- * where alpha_val is two’s complement number.
- */
- if (!(ctl & PLL_ALPHA_MODE))
- return alpha_huayra_pll_calc_rate(rate, l, alpha);
- alpha_m = alpha >> PLL_HUAYRA_M_SHIFT & PLL_HUAYRA_M_MASK;
- alpha_n = alpha >> PLL_HUAYRA_N_SHIFT & PLL_HUAYRA_N_MASK;
- rate *= l;
- tmp = parent_rate;
- if (alpha_m >= BIT(PLL_HUAYRA_M_WIDTH - 1)) {
- alpha_m = BIT(PLL_HUAYRA_M_WIDTH) - alpha_m;
- tmp *= alpha_m;
- do_div(tmp, alpha_n);
- rate -= tmp;
- } else {
- tmp *= alpha_m;
- do_div(tmp, alpha_n);
- rate += tmp;
- }
- return rate;
- }
- return alpha_huayra_pll_calc_rate(rate, l, alpha);
- }
- static int alpha_pll_huayra_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long prate)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- u32 l, a, ctl, cur_alpha = 0;
- rate = alpha_huayra_pll_round_rate(rate, prate, &l, &a);
- regmap_read(pll->clkr.regmap, PLL_USER_CTL(pll), &ctl);
- if (ctl & PLL_ALPHA_EN)
- regmap_read(pll->clkr.regmap, PLL_ALPHA_VAL(pll), &cur_alpha);
- /*
- * Huayra PLL supports PLL dynamic programming. User can change L_VAL,
- * without having to go through the power on sequence.
- */
- if (clk_alpha_pll_is_enabled(hw)) {
- if (cur_alpha != a) {
- pr_err("%s: clock needs to be gated\n",
- clk_hw_get_name(hw));
- return -EBUSY;
- }
- regmap_write(pll->clkr.regmap, PLL_L_VAL(pll), l);
- /* Ensure that the write above goes to detect L val change. */
- mb();
- return wait_for_pll_enable_lock(pll);
- }
- regmap_write(pll->clkr.regmap, PLL_L_VAL(pll), l);
- regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL(pll), a);
- if (a == 0)
- regmap_update_bits(pll->clkr.regmap, PLL_USER_CTL(pll),
- PLL_ALPHA_EN, 0x0);
- else
- regmap_update_bits(pll->clkr.regmap, PLL_USER_CTL(pll),
- PLL_ALPHA_EN | PLL_ALPHA_MODE, PLL_ALPHA_EN);
- return 0;
- }
- static int alpha_pll_huayra_determine_rate(struct clk_hw *hw,
- struct clk_rate_request *req)
- {
- u32 l, a;
- req->rate = alpha_huayra_pll_round_rate(req->rate,
- req->best_parent_rate, &l, &a);
- return 0;
- }
- static int trion_pll_is_enabled(struct clk_alpha_pll *pll,
- struct regmap *regmap)
- {
- u32 mode_val, opmode_val;
- int ret;
- ret = regmap_read(regmap, PLL_MODE(pll), &mode_val);
- ret |= regmap_read(regmap, PLL_OPMODE(pll), &opmode_val);
- if (ret)
- return 0;
- return ((opmode_val & PLL_RUN) && (mode_val & PLL_OUTCTRL));
- }
- static int clk_trion_pll_is_enabled(struct clk_hw *hw)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- return trion_pll_is_enabled(pll, pll->clkr.regmap);
- }
- static int clk_trion_pll_enable(struct clk_hw *hw)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- struct regmap *regmap = pll->clkr.regmap;
- u32 val;
- int ret;
- ret = regmap_read(regmap, PLL_MODE(pll), &val);
- if (ret)
- return ret;
- /* If in FSM mode, just vote for it */
- if (val & PLL_VOTE_FSM_ENA) {
- ret = clk_enable_regmap(hw);
- if (ret)
- return ret;
- return wait_for_pll_enable_active(pll);
- }
- /* Set operation mode to RUN */
- regmap_write(regmap, PLL_OPMODE(pll), PLL_RUN);
- ret = wait_for_pll_enable_lock(pll);
- if (ret)
- return ret;
- /* Enable the PLL outputs */
- ret = regmap_update_bits(regmap, PLL_USER_CTL(pll),
- PLL_OUT_MASK, PLL_OUT_MASK);
- if (ret)
- return ret;
- /* Enable the global PLL outputs */
- return regmap_update_bits(regmap, PLL_MODE(pll),
- PLL_OUTCTRL, PLL_OUTCTRL);
- }
- static void clk_trion_pll_disable(struct clk_hw *hw)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- struct regmap *regmap = pll->clkr.regmap;
- u32 val;
- int ret;
- ret = regmap_read(regmap, PLL_MODE(pll), &val);
- if (ret)
- return;
- /* If in FSM mode, just unvote it */
- if (val & PLL_VOTE_FSM_ENA) {
- clk_disable_regmap(hw);
- return;
- }
- /* Disable the global PLL output */
- ret = regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, 0);
- if (ret)
- return;
- /* Disable the PLL outputs */
- ret = regmap_update_bits(regmap, PLL_USER_CTL(pll),
- PLL_OUT_MASK, 0);
- if (ret)
- return;
- /* Place the PLL mode in STANDBY */
- regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY);
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N);
- }
- static unsigned long
- clk_trion_pll_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- u32 l, frac, alpha_width = pll_alpha_width(pll);
- if (regmap_read(pll->clkr.regmap, PLL_L_VAL(pll), &l))
- return 0;
- if (regmap_read(pll->clkr.regmap, PLL_ALPHA_VAL(pll), &frac))
- return 0;
- return alpha_pll_calc_rate(parent_rate, l, frac, alpha_width);
- }
- const struct clk_ops clk_alpha_pll_fixed_ops = {
- .enable = clk_alpha_pll_enable,
- .disable = clk_alpha_pll_disable,
- .is_enabled = clk_alpha_pll_is_enabled,
- .recalc_rate = clk_alpha_pll_recalc_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_fixed_ops);
- const struct clk_ops clk_alpha_pll_ops = {
- .enable = clk_alpha_pll_enable,
- .disable = clk_alpha_pll_disable,
- .is_enabled = clk_alpha_pll_is_enabled,
- .recalc_rate = clk_alpha_pll_recalc_rate,
- .determine_rate = clk_alpha_pll_determine_rate,
- .set_rate = clk_alpha_pll_set_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_ops);
- const struct clk_ops clk_alpha_pll_huayra_ops = {
- .enable = clk_alpha_pll_enable,
- .disable = clk_alpha_pll_disable,
- .is_enabled = clk_alpha_pll_is_enabled,
- .recalc_rate = alpha_pll_huayra_recalc_rate,
- .determine_rate = alpha_pll_huayra_determine_rate,
- .set_rate = alpha_pll_huayra_set_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_huayra_ops);
- const struct clk_ops clk_alpha_pll_hwfsm_ops = {
- .enable = clk_alpha_pll_hwfsm_enable,
- .disable = clk_alpha_pll_hwfsm_disable,
- .is_enabled = clk_alpha_pll_hwfsm_is_enabled,
- .recalc_rate = clk_alpha_pll_recalc_rate,
- .determine_rate = clk_alpha_pll_determine_rate,
- .set_rate = clk_alpha_pll_hwfsm_set_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_hwfsm_ops);
- const struct clk_ops clk_alpha_pll_fixed_trion_ops = {
- .enable = clk_trion_pll_enable,
- .disable = clk_trion_pll_disable,
- .is_enabled = clk_trion_pll_is_enabled,
- .recalc_rate = clk_trion_pll_recalc_rate,
- .determine_rate = clk_alpha_pll_determine_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_fixed_trion_ops);
- static unsigned long
- clk_alpha_pll_postdiv_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
- {
- struct clk_alpha_pll_postdiv *pll = to_clk_alpha_pll_postdiv(hw);
- u32 ctl;
- if (regmap_read(pll->clkr.regmap, PLL_USER_CTL(pll), &ctl))
- return 0;
- ctl >>= PLL_POST_DIV_SHIFT;
- ctl &= PLL_POST_DIV_MASK(pll);
- return parent_rate >> fls(ctl);
- }
- static const struct clk_div_table clk_alpha_div_table[] = {
- { 0x0, 1 },
- { 0x1, 2 },
- { 0x3, 4 },
- { 0x7, 8 },
- { 0xf, 16 },
- { }
- };
- static const struct clk_div_table clk_alpha_2bit_div_table[] = {
- { 0x0, 1 },
- { 0x1, 2 },
- { 0x3, 4 },
- { }
- };
- static int clk_alpha_pll_postdiv_determine_rate(struct clk_hw *hw,
- struct clk_rate_request *req)
- {
- struct clk_alpha_pll_postdiv *pll = to_clk_alpha_pll_postdiv(hw);
- const struct clk_div_table *table;
- if (pll->width == 2)
- table = clk_alpha_2bit_div_table;
- else
- table = clk_alpha_div_table;
- return divider_determine_rate(hw, req, table, pll->width,
- CLK_DIVIDER_POWER_OF_TWO);
- }
- static int clk_alpha_pll_postdiv_ro_determine_rate(struct clk_hw *hw,
- struct clk_rate_request *req)
- {
- struct clk_alpha_pll_postdiv *pll = to_clk_alpha_pll_postdiv(hw);
- u32 ctl, div;
- regmap_read(pll->clkr.regmap, PLL_USER_CTL(pll), &ctl);
- ctl >>= PLL_POST_DIV_SHIFT;
- ctl &= BIT(pll->width) - 1;
- div = 1 << fls(ctl);
- if (clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT)
- req->best_parent_rate = clk_hw_round_rate(clk_hw_get_parent(hw),
- div * req->rate);
- req->rate = DIV_ROUND_UP_ULL((u64)req->best_parent_rate, div);
- return 0;
- }
- static int clk_alpha_pll_postdiv_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long parent_rate)
- {
- struct clk_alpha_pll_postdiv *pll = to_clk_alpha_pll_postdiv(hw);
- int div;
- /* 16 -> 0xf, 8 -> 0x7, 4 -> 0x3, 2 -> 0x1, 1 -> 0x0 */
- div = DIV_ROUND_UP_ULL(parent_rate, rate) - 1;
- return regmap_update_bits(pll->clkr.regmap, PLL_USER_CTL(pll),
- PLL_POST_DIV_MASK(pll) << PLL_POST_DIV_SHIFT,
- div << PLL_POST_DIV_SHIFT);
- }
- const struct clk_ops clk_alpha_pll_postdiv_ops = {
- .recalc_rate = clk_alpha_pll_postdiv_recalc_rate,
- .determine_rate = clk_alpha_pll_postdiv_determine_rate,
- .set_rate = clk_alpha_pll_postdiv_set_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_postdiv_ops);
- const struct clk_ops clk_alpha_pll_postdiv_ro_ops = {
- .determine_rate = clk_alpha_pll_postdiv_ro_determine_rate,
- .recalc_rate = clk_alpha_pll_postdiv_recalc_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_postdiv_ro_ops);
- void clk_fabia_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
- const struct alpha_pll_config *config)
- {
- u32 val, mask;
- clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), config->l);
- clk_alpha_pll_write_config(regmap, PLL_FRAC(pll), config->alpha);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL(pll),
- config->config_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U(pll),
- config->config_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL(pll),
- config->user_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U(pll),
- config->user_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL(pll),
- config->test_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U(pll),
- config->test_ctl_hi_val);
- if (config->post_div_mask) {
- mask = config->post_div_mask;
- val = config->post_div_val;
- regmap_update_bits(regmap, PLL_USER_CTL(pll), mask, val);
- }
- if (pll->flags & SUPPORTS_FSM_LEGACY_MODE)
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_FSM_LEGACY_MODE,
- PLL_FSM_LEGACY_MODE);
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_UPDATE_BYPASS,
- PLL_UPDATE_BYPASS);
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N);
- }
- EXPORT_SYMBOL_GPL(clk_fabia_pll_configure);
- static int alpha_pll_fabia_enable(struct clk_hw *hw)
- {
- int ret;
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- u32 val, opmode_val;
- struct regmap *regmap = pll->clkr.regmap;
- ret = regmap_read(regmap, PLL_MODE(pll), &val);
- if (ret)
- return ret;
- /* If in FSM mode, just vote for it */
- if (val & PLL_VOTE_FSM_ENA) {
- ret = clk_enable_regmap(hw);
- if (ret)
- return ret;
- return wait_for_pll_enable_active(pll);
- }
- ret = regmap_read(regmap, PLL_OPMODE(pll), &opmode_val);
- if (ret)
- return ret;
- /* Skip If PLL is already running */
- if ((opmode_val & PLL_RUN) && (val & PLL_OUTCTRL))
- return 0;
- ret = regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, 0);
- if (ret)
- return ret;
- ret = regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY);
- if (ret)
- return ret;
- ret = regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N,
- PLL_RESET_N);
- if (ret)
- return ret;
- ret = regmap_write(regmap, PLL_OPMODE(pll), PLL_RUN);
- if (ret)
- return ret;
- ret = wait_for_pll_enable_lock(pll);
- if (ret)
- return ret;
- ret = regmap_update_bits(regmap, PLL_USER_CTL(pll),
- PLL_OUT_MASK, PLL_OUT_MASK);
- if (ret)
- return ret;
- return regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL,
- PLL_OUTCTRL);
- }
- static void alpha_pll_fabia_disable(struct clk_hw *hw)
- {
- int ret;
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- u32 val;
- struct regmap *regmap = pll->clkr.regmap;
- ret = regmap_read(regmap, PLL_MODE(pll), &val);
- if (ret)
- return;
- /* If in FSM mode, just unvote it */
- if (val & PLL_FSM_ENA) {
- clk_disable_regmap(hw);
- return;
- }
- ret = regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, 0);
- if (ret)
- return;
- /* Disable main outputs */
- ret = regmap_update_bits(regmap, PLL_USER_CTL(pll), PLL_OUT_MASK, 0);
- if (ret)
- return;
- /* Place the PLL in STANDBY */
- regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY);
- }
- static unsigned long alpha_pll_fabia_recalc_rate(struct clk_hw *hw,
- unsigned long parent_rate)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- u32 l, frac, alpha_width = pll_alpha_width(pll);
- if (regmap_read(pll->clkr.regmap, PLL_L_VAL(pll), &l))
- return 0;
- if (regmap_read(pll->clkr.regmap, PLL_FRAC(pll), &frac))
- return 0;
- return alpha_pll_calc_rate(parent_rate, l, frac, alpha_width);
- }
- /*
- * Due to limited number of bits for fractional rate programming, the
- * rounded up rate could be marginally higher than the requested rate.
- */
- static int alpha_pll_check_rate_margin(struct clk_hw *hw,
- unsigned long rrate, unsigned long rate)
- {
- unsigned long rate_margin = rate + PLL_RATE_MARGIN;
- if (rrate > rate_margin || rrate < rate) {
- pr_err("%s: Rounded rate %lu not within range [%lu, %lu)\n",
- clk_hw_get_name(hw), rrate, rate, rate_margin);
- return -EINVAL;
- }
- return 0;
- }
- static int alpha_pll_fabia_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long prate)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- u32 l, alpha_width = pll_alpha_width(pll);
- unsigned long rrate;
- int ret;
- u64 a;
- rrate = alpha_pll_round_rate(rate, prate, &l, &a, alpha_width);
- ret = alpha_pll_check_rate_margin(hw, rrate, rate);
- if (ret < 0)
- return ret;
- regmap_write(pll->clkr.regmap, PLL_L_VAL(pll), l);
- regmap_write(pll->clkr.regmap, PLL_FRAC(pll), a);
- return __clk_alpha_pll_update_latch(pll);
- }
- static int alpha_pll_fabia_prepare(struct clk_hw *hw)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- const struct pll_vco *vco;
- struct clk_hw *parent_hw;
- unsigned long cal_freq, rrate;
- u32 cal_l, val, alpha_width = pll_alpha_width(pll);
- const char *name = clk_hw_get_name(hw);
- u64 a;
- int ret;
- /* Check if calibration needs to be done i.e. PLL is in reset */
- ret = regmap_read(pll->clkr.regmap, PLL_MODE(pll), &val);
- if (ret)
- return ret;
- /* Return early if calibration is not needed. */
- if (val & PLL_RESET_N)
- return 0;
- vco = alpha_pll_find_vco(pll, clk_hw_get_rate(hw));
- if (!vco) {
- pr_err("%s: alpha pll not in a valid vco range\n", name);
- return -EINVAL;
- }
- cal_freq = DIV_ROUND_CLOSEST((pll->vco_table[0].min_freq +
- pll->vco_table[0].max_freq) * 54, 100);
- parent_hw = clk_hw_get_parent(hw);
- if (!parent_hw)
- return -EINVAL;
- rrate = alpha_pll_round_rate(cal_freq, clk_hw_get_rate(parent_hw),
- &cal_l, &a, alpha_width);
- ret = alpha_pll_check_rate_margin(hw, rrate, cal_freq);
- if (ret < 0)
- return ret;
- /* Setup PLL for calibration frequency */
- regmap_write(pll->clkr.regmap, PLL_CAL_L_VAL(pll), cal_l);
- /* Bringup the PLL at calibration frequency */
- ret = clk_alpha_pll_enable(hw);
- if (ret) {
- pr_err("%s: alpha pll calibration failed\n", name);
- return ret;
- }
- clk_alpha_pll_disable(hw);
- return 0;
- }
- const struct clk_ops clk_alpha_pll_fabia_ops = {
- .prepare = alpha_pll_fabia_prepare,
- .enable = alpha_pll_fabia_enable,
- .disable = alpha_pll_fabia_disable,
- .is_enabled = clk_alpha_pll_is_enabled,
- .set_rate = alpha_pll_fabia_set_rate,
- .recalc_rate = alpha_pll_fabia_recalc_rate,
- .determine_rate = clk_alpha_pll_determine_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_fabia_ops);
- const struct clk_ops clk_alpha_pll_fixed_fabia_ops = {
- .enable = alpha_pll_fabia_enable,
- .disable = alpha_pll_fabia_disable,
- .is_enabled = clk_alpha_pll_is_enabled,
- .recalc_rate = alpha_pll_fabia_recalc_rate,
- .determine_rate = clk_alpha_pll_determine_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_fixed_fabia_ops);
- static unsigned long clk_alpha_pll_postdiv_fabia_recalc_rate(struct clk_hw *hw,
- unsigned long parent_rate)
- {
- struct clk_alpha_pll_postdiv *pll = to_clk_alpha_pll_postdiv(hw);
- u32 i, div = 1, val;
- int ret;
- ret = regmap_read(pll->clkr.regmap, PLL_USER_CTL(pll), &val);
- if (ret)
- return ret;
- val >>= pll->post_div_shift;
- val &= BIT(pll->width) - 1;
- for (i = 0; i < pll->num_post_div; i++) {
- if (pll->post_div_table[i].val == val) {
- div = pll->post_div_table[i].div;
- break;
- }
- }
- return (parent_rate / div);
- }
- static unsigned long
- clk_trion_pll_postdiv_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
- {
- struct clk_alpha_pll_postdiv *pll = to_clk_alpha_pll_postdiv(hw);
- struct regmap *regmap = pll->clkr.regmap;
- u32 i, div = 1, val;
- if (regmap_read(regmap, PLL_USER_CTL(pll), &val))
- return 0;
- val >>= pll->post_div_shift;
- val &= PLL_POST_DIV_MASK(pll);
- for (i = 0; i < pll->num_post_div; i++) {
- if (pll->post_div_table[i].val == val) {
- div = pll->post_div_table[i].div;
- break;
- }
- }
- return (parent_rate / div);
- }
- static int clk_trion_pll_postdiv_determine_rate(struct clk_hw *hw,
- struct clk_rate_request *req)
- {
- struct clk_alpha_pll_postdiv *pll = to_clk_alpha_pll_postdiv(hw);
- return divider_determine_rate(hw, req, pll->post_div_table, pll->width,
- CLK_DIVIDER_ROUND_CLOSEST);
- };
- static int
- clk_trion_pll_postdiv_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long parent_rate)
- {
- struct clk_alpha_pll_postdiv *pll = to_clk_alpha_pll_postdiv(hw);
- struct regmap *regmap = pll->clkr.regmap;
- int i, val = 0, div;
- div = DIV_ROUND_UP_ULL(parent_rate, rate);
- for (i = 0; i < pll->num_post_div; i++) {
- if (pll->post_div_table[i].div == div) {
- val = pll->post_div_table[i].val;
- break;
- }
- }
- return regmap_update_bits(regmap, PLL_USER_CTL(pll),
- PLL_POST_DIV_MASK(pll) << pll->post_div_shift,
- val << pll->post_div_shift);
- }
- const struct clk_ops clk_alpha_pll_postdiv_trion_ops = {
- .recalc_rate = clk_trion_pll_postdiv_recalc_rate,
- .determine_rate = clk_trion_pll_postdiv_determine_rate,
- .set_rate = clk_trion_pll_postdiv_set_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_postdiv_trion_ops);
- static int clk_alpha_pll_postdiv_fabia_determine_rate(struct clk_hw *hw,
- struct clk_rate_request *req)
- {
- struct clk_alpha_pll_postdiv *pll = to_clk_alpha_pll_postdiv(hw);
- return divider_determine_rate(hw, req, pll->post_div_table, pll->width,
- CLK_DIVIDER_ROUND_CLOSEST);
- }
- static int clk_alpha_pll_postdiv_fabia_set_rate(struct clk_hw *hw,
- unsigned long rate, unsigned long parent_rate)
- {
- struct clk_alpha_pll_postdiv *pll = to_clk_alpha_pll_postdiv(hw);
- int i, val = 0, div, ret;
- /*
- * If the PLL is in FSM mode, then treat set_rate callback as a
- * no-operation.
- */
- ret = regmap_read(pll->clkr.regmap, PLL_MODE(pll), &val);
- if (ret)
- return ret;
- if (val & PLL_VOTE_FSM_ENA)
- return 0;
- div = DIV_ROUND_UP_ULL(parent_rate, rate);
- for (i = 0; i < pll->num_post_div; i++) {
- if (pll->post_div_table[i].div == div) {
- val = pll->post_div_table[i].val;
- break;
- }
- }
- return regmap_update_bits(pll->clkr.regmap, PLL_USER_CTL(pll),
- (BIT(pll->width) - 1) << pll->post_div_shift,
- val << pll->post_div_shift);
- }
- const struct clk_ops clk_alpha_pll_postdiv_fabia_ops = {
- .recalc_rate = clk_alpha_pll_postdiv_fabia_recalc_rate,
- .determine_rate = clk_alpha_pll_postdiv_fabia_determine_rate,
- .set_rate = clk_alpha_pll_postdiv_fabia_set_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_postdiv_fabia_ops);
- /**
- * clk_trion_pll_configure - configure the trion pll
- *
- * @pll: clk alpha pll
- * @regmap: register map
- * @config: configuration to apply for pll
- */
- void clk_trion_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
- const struct alpha_pll_config *config)
- {
- /*
- * If the bootloader left the PLL enabled it's likely that there are
- * RCGs that will lock up if we disable the PLL below.
- */
- if (trion_pll_is_enabled(pll, regmap)) {
- pr_debug("Trion PLL is already enabled, skipping configuration\n");
- return;
- }
- clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), config->l);
- regmap_write(regmap, PLL_CAL_L_VAL(pll), TRION_PLL_CAL_VAL);
- clk_alpha_pll_write_config(regmap, PLL_ALPHA_VAL(pll), config->alpha);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL(pll),
- config->config_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U(pll),
- config->config_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U1(pll),
- config->config_ctl_hi1_val);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL(pll),
- config->user_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U(pll),
- config->user_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U1(pll),
- config->user_ctl_hi1_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL(pll),
- config->test_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U(pll),
- config->test_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U1(pll),
- config->test_ctl_hi1_val);
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_UPDATE_BYPASS,
- PLL_UPDATE_BYPASS);
- /* Disable PLL output */
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, 0);
- /* Set operation mode to OFF */
- regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY);
- /* Place the PLL in STANDBY mode */
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N);
- }
- EXPORT_SYMBOL_GPL(clk_trion_pll_configure);
- /*
- * The TRION PLL requires a power-on self-calibration which happens when the
- * PLL comes out of reset. Calibrate in case it is not completed.
- */
- static int __alpha_pll_trion_prepare(struct clk_hw *hw, u32 pcal_done)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- u32 val;
- int ret;
- /* Return early if calibration is not needed. */
- regmap_read(pll->clkr.regmap, PLL_STATUS(pll), &val);
- if (val & pcal_done)
- return 0;
- /* On/off to calibrate */
- ret = clk_trion_pll_enable(hw);
- if (!ret)
- clk_trion_pll_disable(hw);
- return ret;
- }
- static int alpha_pll_trion_prepare(struct clk_hw *hw)
- {
- return __alpha_pll_trion_prepare(hw, TRION_PCAL_DONE);
- }
- static int alpha_pll_lucid_prepare(struct clk_hw *hw)
- {
- return __alpha_pll_trion_prepare(hw, LUCID_PCAL_DONE);
- }
- static int __alpha_pll_trion_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long prate, u32 latch_bit, u32 latch_ack)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- unsigned long rrate;
- u32 val, l, alpha_width = pll_alpha_width(pll);
- u64 a;
- int ret;
- rrate = alpha_pll_round_rate(rate, prate, &l, &a, alpha_width);
- ret = alpha_pll_check_rate_margin(hw, rrate, rate);
- if (ret < 0)
- return ret;
- regmap_update_bits(pll->clkr.regmap, PLL_L_VAL(pll), LUCID_EVO_PLL_L_VAL_MASK, l);
- regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL(pll), a);
- /* Latch the PLL input */
- ret = regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll), latch_bit, latch_bit);
- if (ret)
- return ret;
- /* Wait for 2 reference cycles before checking the ACK bit. */
- udelay(1);
- regmap_read(pll->clkr.regmap, PLL_MODE(pll), &val);
- if (!(val & latch_ack)) {
- pr_err("Lucid PLL latch failed. Output may be unstable!\n");
- return -EINVAL;
- }
- /* Return the latch input to 0 */
- ret = regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll), latch_bit, 0);
- if (ret)
- return ret;
- if (clk_hw_is_enabled(hw)) {
- ret = wait_for_pll_enable_lock(pll);
- if (ret)
- return ret;
- }
- /* Wait for PLL output to stabilize */
- udelay(100);
- return 0;
- }
- static int alpha_pll_trion_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long prate)
- {
- return __alpha_pll_trion_set_rate(hw, rate, prate, PLL_UPDATE, ALPHA_PLL_ACK_LATCH);
- }
- const struct clk_ops clk_alpha_pll_trion_ops = {
- .prepare = alpha_pll_trion_prepare,
- .enable = clk_trion_pll_enable,
- .disable = clk_trion_pll_disable,
- .is_enabled = clk_trion_pll_is_enabled,
- .recalc_rate = clk_trion_pll_recalc_rate,
- .determine_rate = clk_alpha_pll_determine_rate,
- .set_rate = alpha_pll_trion_set_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_trion_ops);
- const struct clk_ops clk_alpha_pll_lucid_ops = {
- .prepare = alpha_pll_lucid_prepare,
- .enable = clk_trion_pll_enable,
- .disable = clk_trion_pll_disable,
- .is_enabled = clk_trion_pll_is_enabled,
- .recalc_rate = clk_trion_pll_recalc_rate,
- .determine_rate = clk_alpha_pll_determine_rate,
- .set_rate = alpha_pll_trion_set_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_lucid_ops);
- const struct clk_ops clk_alpha_pll_postdiv_lucid_ops = {
- .recalc_rate = clk_alpha_pll_postdiv_fabia_recalc_rate,
- .determine_rate = clk_alpha_pll_postdiv_fabia_determine_rate,
- .set_rate = clk_alpha_pll_postdiv_fabia_set_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_postdiv_lucid_ops);
- void clk_agera_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
- const struct alpha_pll_config *config)
- {
- clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), config->l);
- clk_alpha_pll_write_config(regmap, PLL_ALPHA_VAL(pll), config->alpha);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL(pll),
- config->user_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL(pll),
- config->config_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U(pll),
- config->config_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL(pll),
- config->test_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U(pll),
- config->test_ctl_hi_val);
- }
- EXPORT_SYMBOL_GPL(clk_agera_pll_configure);
- static int clk_alpha_pll_agera_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long prate)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- u32 l, alpha_width = pll_alpha_width(pll);
- int ret;
- unsigned long rrate;
- u64 a;
- rrate = alpha_pll_round_rate(rate, prate, &l, &a, alpha_width);
- ret = alpha_pll_check_rate_margin(hw, rrate, rate);
- if (ret < 0)
- return ret;
- /* change L_VAL without having to go through the power on sequence */
- regmap_write(pll->clkr.regmap, PLL_L_VAL(pll), l);
- regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL(pll), a);
- if (clk_hw_is_enabled(hw))
- return wait_for_pll_enable_lock(pll);
- return 0;
- }
- const struct clk_ops clk_alpha_pll_agera_ops = {
- .enable = clk_alpha_pll_enable,
- .disable = clk_alpha_pll_disable,
- .is_enabled = clk_alpha_pll_is_enabled,
- .recalc_rate = alpha_pll_fabia_recalc_rate,
- .determine_rate = clk_alpha_pll_determine_rate,
- .set_rate = clk_alpha_pll_agera_set_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_agera_ops);
- /**
- * clk_lucid_5lpe_pll_configure - configure the lucid 5lpe pll
- *
- * @pll: clk alpha pll
- * @regmap: register map
- * @config: configuration to apply for pll
- */
- void clk_lucid_5lpe_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
- const struct alpha_pll_config *config)
- {
- /*
- * If the bootloader left the PLL enabled it's likely that there are
- * RCGs that will lock up if we disable the PLL below.
- */
- if (trion_pll_is_enabled(pll, regmap)) {
- pr_debug("Lucid 5LPE PLL is already enabled, skipping configuration\n");
- return;
- }
- clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), config->l);
- regmap_write(regmap, PLL_CAL_L_VAL(pll), TRION_PLL_CAL_VAL);
- clk_alpha_pll_write_config(regmap, PLL_ALPHA_VAL(pll), config->alpha);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL(pll),
- config->config_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U(pll),
- config->config_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U1(pll),
- config->config_ctl_hi1_val);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL(pll),
- config->user_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U(pll),
- config->user_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U1(pll),
- config->user_ctl_hi1_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL(pll),
- config->test_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U(pll),
- config->test_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U1(pll),
- config->test_ctl_hi1_val);
- /* Disable PLL output */
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, 0);
- /* Set operation mode to OFF */
- regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY);
- /* Place the PLL in STANDBY mode */
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N);
- }
- EXPORT_SYMBOL_GPL(clk_lucid_5lpe_pll_configure);
- static int alpha_pll_lucid_5lpe_enable(struct clk_hw *hw)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- u32 val;
- int ret;
- ret = regmap_read(pll->clkr.regmap, PLL_USER_CTL(pll), &val);
- if (ret)
- return ret;
- /* If in FSM mode, just vote for it */
- if (val & LUCID_5LPE_ENABLE_VOTE_RUN) {
- ret = clk_enable_regmap(hw);
- if (ret)
- return ret;
- return wait_for_pll_enable_lock(pll);
- }
- /* Check if PLL is already enabled, return if enabled */
- if (trion_pll_is_enabled(pll, pll->clkr.regmap))
- return 0;
- ret = regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N);
- if (ret)
- return ret;
- regmap_write(pll->clkr.regmap, PLL_OPMODE(pll), PLL_RUN);
- ret = wait_for_pll_enable_lock(pll);
- if (ret)
- return ret;
- /* Enable the PLL outputs */
- ret = regmap_update_bits(pll->clkr.regmap, PLL_USER_CTL(pll), PLL_OUT_MASK, PLL_OUT_MASK);
- if (ret)
- return ret;
- /* Enable the global PLL outputs */
- return regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll), PLL_OUTCTRL, PLL_OUTCTRL);
- }
- static void alpha_pll_lucid_5lpe_disable(struct clk_hw *hw)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- u32 val;
- int ret;
- ret = regmap_read(pll->clkr.regmap, PLL_USER_CTL(pll), &val);
- if (ret)
- return;
- /* If in FSM mode, just unvote it */
- if (val & LUCID_5LPE_ENABLE_VOTE_RUN) {
- clk_disable_regmap(hw);
- return;
- }
- /* Disable the global PLL output */
- ret = regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll), PLL_OUTCTRL, 0);
- if (ret)
- return;
- /* Disable the PLL outputs */
- ret = regmap_update_bits(pll->clkr.regmap, PLL_USER_CTL(pll), PLL_OUT_MASK, 0);
- if (ret)
- return;
- /* Place the PLL mode in STANDBY */
- regmap_write(pll->clkr.regmap, PLL_OPMODE(pll), PLL_STANDBY);
- }
- /*
- * The Lucid 5LPE PLL requires a power-on self-calibration which happens
- * when the PLL comes out of reset. Calibrate in case it is not completed.
- */
- static int alpha_pll_lucid_5lpe_prepare(struct clk_hw *hw)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- struct clk_hw *p;
- u32 val = 0;
- int ret;
- /* Return early if calibration is not needed. */
- regmap_read(pll->clkr.regmap, PLL_MODE(pll), &val);
- if (val & LUCID_5LPE_PCAL_DONE)
- return 0;
- p = clk_hw_get_parent(hw);
- if (!p)
- return -EINVAL;
- ret = alpha_pll_lucid_5lpe_enable(hw);
- if (ret)
- return ret;
- alpha_pll_lucid_5lpe_disable(hw);
- return 0;
- }
- static int alpha_pll_lucid_5lpe_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long prate)
- {
- return __alpha_pll_trion_set_rate(hw, rate, prate,
- LUCID_5LPE_PLL_LATCH_INPUT,
- LUCID_5LPE_ALPHA_PLL_ACK_LATCH);
- }
- static int __clk_lucid_pll_postdiv_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long parent_rate,
- unsigned long enable_vote_run)
- {
- struct clk_alpha_pll_postdiv *pll = to_clk_alpha_pll_postdiv(hw);
- struct regmap *regmap = pll->clkr.regmap;
- int i, val, div, ret;
- u32 mask;
- /*
- * If the PLL is in FSM mode, then treat set_rate callback as a
- * no-operation.
- */
- ret = regmap_read(regmap, PLL_USER_CTL(pll), &val);
- if (ret)
- return ret;
- if (val & enable_vote_run)
- return 0;
- if (!pll->post_div_table) {
- pr_err("Missing the post_div_table for the %s PLL\n",
- clk_hw_get_name(&pll->clkr.hw));
- return -EINVAL;
- }
- div = DIV_ROUND_UP_ULL((u64)parent_rate, rate);
- for (i = 0; i < pll->num_post_div; i++) {
- if (pll->post_div_table[i].div == div) {
- val = pll->post_div_table[i].val;
- break;
- }
- }
- mask = GENMASK(pll->width + pll->post_div_shift - 1, pll->post_div_shift);
- return regmap_update_bits(pll->clkr.regmap, PLL_USER_CTL(pll),
- mask, val << pll->post_div_shift);
- }
- static int clk_lucid_5lpe_pll_postdiv_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long parent_rate)
- {
- return __clk_lucid_pll_postdiv_set_rate(hw, rate, parent_rate, LUCID_5LPE_ENABLE_VOTE_RUN);
- }
- const struct clk_ops clk_alpha_pll_lucid_5lpe_ops = {
- .prepare = alpha_pll_lucid_5lpe_prepare,
- .enable = alpha_pll_lucid_5lpe_enable,
- .disable = alpha_pll_lucid_5lpe_disable,
- .is_enabled = clk_trion_pll_is_enabled,
- .recalc_rate = clk_trion_pll_recalc_rate,
- .determine_rate = clk_alpha_pll_determine_rate,
- .set_rate = alpha_pll_lucid_5lpe_set_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_lucid_5lpe_ops);
- const struct clk_ops clk_alpha_pll_fixed_lucid_5lpe_ops = {
- .enable = alpha_pll_lucid_5lpe_enable,
- .disable = alpha_pll_lucid_5lpe_disable,
- .is_enabled = clk_trion_pll_is_enabled,
- .recalc_rate = clk_trion_pll_recalc_rate,
- .determine_rate = clk_alpha_pll_determine_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_fixed_lucid_5lpe_ops);
- const struct clk_ops clk_alpha_pll_postdiv_lucid_5lpe_ops = {
- .recalc_rate = clk_alpha_pll_postdiv_fabia_recalc_rate,
- .determine_rate = clk_alpha_pll_postdiv_fabia_determine_rate,
- .set_rate = clk_lucid_5lpe_pll_postdiv_set_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_postdiv_lucid_5lpe_ops);
- void clk_zonda_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
- const struct alpha_pll_config *config)
- {
- clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), config->l);
- clk_alpha_pll_write_config(regmap, PLL_ALPHA_VAL(pll), config->alpha);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL(pll), config->config_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U(pll), config->config_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U1(pll), config->config_ctl_hi1_val);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL(pll), config->user_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U(pll), config->user_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U1(pll), config->user_ctl_hi1_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL(pll), config->test_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U(pll), config->test_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U1(pll), config->test_ctl_hi1_val);
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_BYPASSNL, 0);
- /* Disable PLL output */
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, 0);
- /* Set operation mode to OFF */
- regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY);
- /* Place the PLL in STANDBY mode */
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N);
- }
- EXPORT_SYMBOL_GPL(clk_zonda_pll_configure);
- static int clk_zonda_pll_enable(struct clk_hw *hw)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- struct regmap *regmap = pll->clkr.regmap;
- u32 val;
- int ret;
- regmap_read(regmap, PLL_MODE(pll), &val);
- /* If in FSM mode, just vote for it */
- if (val & PLL_VOTE_FSM_ENA) {
- ret = clk_enable_regmap(hw);
- if (ret)
- return ret;
- return wait_for_pll_enable_active(pll);
- }
- /* Get the PLL out of bypass mode */
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_BYPASSNL, PLL_BYPASSNL);
- /*
- * H/W requires a 1us delay between disabling the bypass and
- * de-asserting the reset.
- */
- udelay(1);
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N);
- /* Set operation mode to RUN */
- regmap_write(regmap, PLL_OPMODE(pll), PLL_RUN);
- regmap_read(regmap, PLL_TEST_CTL(pll), &val);
- /* If cfa mode then poll for freq lock */
- if (val & ZONDA_STAY_IN_CFA)
- ret = wait_for_zonda_pll_freq_lock(pll);
- else
- ret = wait_for_pll_enable_lock(pll);
- if (ret)
- return ret;
- /* Enable the PLL outputs */
- regmap_update_bits(regmap, PLL_USER_CTL(pll), ZONDA_PLL_OUT_MASK, ZONDA_PLL_OUT_MASK);
- /* Enable the global PLL outputs */
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, PLL_OUTCTRL);
- return 0;
- }
- static void clk_zonda_pll_disable(struct clk_hw *hw)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- struct regmap *regmap = pll->clkr.regmap;
- u32 val;
- regmap_read(regmap, PLL_MODE(pll), &val);
- /* If in FSM mode, just unvote it */
- if (val & PLL_VOTE_FSM_ENA) {
- clk_disable_regmap(hw);
- return;
- }
- /* Disable the global PLL output */
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, 0);
- /* Disable the PLL outputs */
- regmap_update_bits(regmap, PLL_USER_CTL(pll), ZONDA_PLL_OUT_MASK, 0);
- /* Put the PLL in bypass and reset */
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N | PLL_BYPASSNL, 0);
- /* Place the PLL mode in OFF state */
- regmap_write(regmap, PLL_OPMODE(pll), 0x0);
- }
- static void zonda_pll_adjust_l_val(unsigned long rate, unsigned long prate, u32 *l)
- {
- u64 remainder, quotient;
- quotient = rate;
- remainder = do_div(quotient, prate);
- *l = rate + (u32)(remainder * 2 >= prate);
- }
- static int clk_zonda_pll_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long prate)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- unsigned long rrate;
- u32 test_ctl_val;
- u32 l, alpha_width = pll_alpha_width(pll);
- u64 a;
- int ret;
- rrate = alpha_pll_round_rate(rate, prate, &l, &a, alpha_width);
- ret = alpha_pll_check_rate_margin(hw, rrate, rate);
- if (ret < 0)
- return ret;
- if (a & PLL_ALPHA_MSB)
- zonda_pll_adjust_l_val(rate, prate, &l);
- regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL(pll), a);
- regmap_write(pll->clkr.regmap, PLL_L_VAL(pll), l);
- if (!clk_hw_is_enabled(hw))
- return 0;
- /* Wait before polling for the frequency latch */
- udelay(5);
- /* Read stay in cfa mode */
- regmap_read(pll->clkr.regmap, PLL_TEST_CTL(pll), &test_ctl_val);
- /* If cfa mode then poll for freq lock */
- if (test_ctl_val & ZONDA_STAY_IN_CFA)
- ret = wait_for_zonda_pll_freq_lock(pll);
- else
- ret = wait_for_pll_enable_lock(pll);
- if (ret)
- return ret;
- /* Wait for PLL output to stabilize */
- udelay(100);
- return 0;
- }
- const struct clk_ops clk_alpha_pll_zonda_ops = {
- .enable = clk_zonda_pll_enable,
- .disable = clk_zonda_pll_disable,
- .is_enabled = clk_trion_pll_is_enabled,
- .recalc_rate = clk_trion_pll_recalc_rate,
- .determine_rate = clk_alpha_pll_determine_rate,
- .set_rate = clk_zonda_pll_set_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_zonda_ops);
- void clk_lucid_evo_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
- const struct alpha_pll_config *config)
- {
- u32 lval = config->l;
- /*
- * If the bootloader left the PLL enabled it's likely that there are
- * RCGs that will lock up if we disable the PLL below.
- */
- if (trion_pll_is_enabled(pll, regmap)) {
- pr_debug("Lucid Evo PLL is already enabled, skipping configuration\n");
- return;
- }
- if (config->cal_l)
- lval |= config->cal_l << LUCID_EVO_PLL_CAL_L_VAL_SHIFT;
- else
- lval |= TRION_PLL_CAL_VAL << LUCID_EVO_PLL_CAL_L_VAL_SHIFT;
- clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), lval);
- clk_alpha_pll_write_config(regmap, PLL_ALPHA_VAL(pll), config->alpha);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL(pll), config->config_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U(pll), config->config_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U1(pll), config->config_ctl_hi1_val);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL(pll), config->user_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U(pll), config->user_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL(pll), config->test_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U(pll), config->test_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U1(pll), config->test_ctl_hi1_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U2(pll), config->test_ctl_hi2_val);
- /* Disable PLL output */
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, 0);
- /* Set operation mode to STANDBY and de-assert the reset */
- regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY);
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N);
- }
- EXPORT_SYMBOL_GPL(clk_lucid_evo_pll_configure);
- void clk_lucid_ole_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
- const struct alpha_pll_config *config)
- {
- u32 lval = config->l;
- lval |= TRION_PLL_CAL_VAL << LUCID_EVO_PLL_CAL_L_VAL_SHIFT;
- lval |= TRION_PLL_CAL_VAL << LUCID_OLE_PLL_RINGOSC_CAL_L_VAL_SHIFT;
- clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), lval);
- clk_alpha_pll_write_config(regmap, PLL_ALPHA_VAL(pll), config->alpha);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL(pll), config->config_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U(pll), config->config_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U1(pll), config->config_ctl_hi1_val);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL(pll), config->user_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U(pll), config->user_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL(pll), config->test_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U(pll), config->test_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U1(pll), config->test_ctl_hi1_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U2(pll), config->test_ctl_hi2_val);
- /* Disable PLL output */
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, 0);
- /* Set operation mode to STANDBY and de-assert the reset */
- regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY);
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N);
- }
- EXPORT_SYMBOL_GPL(clk_lucid_ole_pll_configure);
- static int alpha_pll_lucid_evo_enable(struct clk_hw *hw)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- struct regmap *regmap = pll->clkr.regmap;
- u32 val;
- int ret;
- ret = regmap_read(regmap, PLL_USER_CTL(pll), &val);
- if (ret)
- return ret;
- /* If in FSM mode, just vote for it */
- if (val & LUCID_EVO_ENABLE_VOTE_RUN) {
- ret = clk_enable_regmap(hw);
- if (ret)
- return ret;
- return wait_for_pll_enable_lock(pll);
- }
- /* Check if PLL is already enabled */
- if (trion_pll_is_enabled(pll, regmap))
- return 0;
- ret = regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N);
- if (ret)
- return ret;
- /* Set operation mode to RUN */
- regmap_write(regmap, PLL_OPMODE(pll), PLL_RUN);
- ret = wait_for_pll_enable_lock(pll);
- if (ret)
- return ret;
- /* Enable the PLL outputs */
- ret = regmap_update_bits(regmap, PLL_USER_CTL(pll), PLL_OUT_MASK, PLL_OUT_MASK);
- if (ret)
- return ret;
- /* Enable the global PLL outputs */
- ret = regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, PLL_OUTCTRL);
- if (ret)
- return ret;
- /* Ensure that the write above goes through before returning. */
- mb();
- return ret;
- }
- static void _alpha_pll_lucid_evo_disable(struct clk_hw *hw, bool reset)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- struct regmap *regmap = pll->clkr.regmap;
- u32 val;
- int ret;
- ret = regmap_read(regmap, PLL_USER_CTL(pll), &val);
- if (ret)
- return;
- /* If in FSM mode, just unvote it */
- if (val & LUCID_EVO_ENABLE_VOTE_RUN) {
- clk_disable_regmap(hw);
- return;
- }
- /* Disable the global PLL output */
- ret = regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, 0);
- if (ret)
- return;
- /* Disable the PLL outputs */
- ret = regmap_update_bits(regmap, PLL_USER_CTL(pll), PLL_OUT_MASK, 0);
- if (ret)
- return;
- /* Place the PLL mode in STANDBY */
- regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY);
- if (reset)
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, 0);
- }
- static int _alpha_pll_lucid_evo_prepare(struct clk_hw *hw, bool reset)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- struct clk_hw *p;
- u32 val = 0;
- int ret;
- /* Return early if calibration is not needed. */
- regmap_read(pll->clkr.regmap, PLL_MODE(pll), &val);
- if (!(val & LUCID_EVO_PCAL_NOT_DONE))
- return 0;
- p = clk_hw_get_parent(hw);
- if (!p)
- return -EINVAL;
- ret = alpha_pll_lucid_evo_enable(hw);
- if (ret)
- return ret;
- _alpha_pll_lucid_evo_disable(hw, reset);
- return 0;
- }
- static void alpha_pll_lucid_evo_disable(struct clk_hw *hw)
- {
- _alpha_pll_lucid_evo_disable(hw, false);
- }
- static int alpha_pll_lucid_evo_prepare(struct clk_hw *hw)
- {
- return _alpha_pll_lucid_evo_prepare(hw, false);
- }
- static void alpha_pll_reset_lucid_evo_disable(struct clk_hw *hw)
- {
- _alpha_pll_lucid_evo_disable(hw, true);
- }
- static int alpha_pll_reset_lucid_evo_prepare(struct clk_hw *hw)
- {
- return _alpha_pll_lucid_evo_prepare(hw, true);
- }
- static unsigned long alpha_pll_lucid_evo_recalc_rate(struct clk_hw *hw,
- unsigned long parent_rate)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- struct regmap *regmap = pll->clkr.regmap;
- u32 l, frac;
- if (regmap_read(regmap, PLL_L_VAL(pll), &l))
- return 0;
- l &= LUCID_EVO_PLL_L_VAL_MASK;
- if (regmap_read(regmap, PLL_ALPHA_VAL(pll), &frac))
- return 0;
- return alpha_pll_calc_rate(parent_rate, l, frac, pll_alpha_width(pll));
- }
- static int clk_lucid_evo_pll_postdiv_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long parent_rate)
- {
- return __clk_lucid_pll_postdiv_set_rate(hw, rate, parent_rate, LUCID_EVO_ENABLE_VOTE_RUN);
- }
- const struct clk_ops clk_alpha_pll_fixed_lucid_evo_ops = {
- .enable = alpha_pll_lucid_evo_enable,
- .disable = alpha_pll_lucid_evo_disable,
- .is_enabled = clk_trion_pll_is_enabled,
- .recalc_rate = alpha_pll_lucid_evo_recalc_rate,
- .determine_rate = clk_alpha_pll_determine_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_fixed_lucid_evo_ops);
- const struct clk_ops clk_alpha_pll_postdiv_lucid_evo_ops = {
- .recalc_rate = clk_alpha_pll_postdiv_fabia_recalc_rate,
- .determine_rate = clk_alpha_pll_postdiv_fabia_determine_rate,
- .set_rate = clk_lucid_evo_pll_postdiv_set_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_postdiv_lucid_evo_ops);
- const struct clk_ops clk_alpha_pll_lucid_evo_ops = {
- .prepare = alpha_pll_lucid_evo_prepare,
- .enable = alpha_pll_lucid_evo_enable,
- .disable = alpha_pll_lucid_evo_disable,
- .is_enabled = clk_trion_pll_is_enabled,
- .recalc_rate = alpha_pll_lucid_evo_recalc_rate,
- .determine_rate = clk_alpha_pll_determine_rate,
- .set_rate = alpha_pll_lucid_5lpe_set_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_lucid_evo_ops);
- const struct clk_ops clk_alpha_pll_reset_lucid_evo_ops = {
- .prepare = alpha_pll_reset_lucid_evo_prepare,
- .enable = alpha_pll_lucid_evo_enable,
- .disable = alpha_pll_reset_lucid_evo_disable,
- .is_enabled = clk_trion_pll_is_enabled,
- .recalc_rate = alpha_pll_lucid_evo_recalc_rate,
- .determine_rate = clk_alpha_pll_determine_rate,
- .set_rate = alpha_pll_lucid_5lpe_set_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_reset_lucid_evo_ops);
- static int alpha_pll_pongo_elu_prepare(struct clk_hw *hw)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- struct regmap *regmap = pll->clkr.regmap;
- int ret;
- /* Enable PLL intially to one-time calibrate against XO. */
- regmap_write(regmap, PLL_OPMODE(pll), PLL_RUN);
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N);
- regmap_update_bits(regmap, PLL_MODE(pll), PONGO_XO_PRESENT, PONGO_XO_PRESENT);
- /* Set regmap for wait_for_pll() */
- pll->clkr.regmap = regmap;
- ret = wait_for_pll_enable_lock(pll);
- if (ret) {
- /* Reverse calibration - disable PLL output */
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, 0);
- return ret;
- }
- /* Disable PLL after one-time calibration. */
- regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY);
- /* Select internally generated clock. */
- regmap_update_bits(regmap, PLL_MODE(pll), PONGO_CLOCK_SELECT,
- PONGO_CLOCK_SELECT);
- return 0;
- }
- static int alpha_pll_pongo_elu_enable(struct clk_hw *hw)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- struct regmap *regmap = pll->clkr.regmap;
- int ret;
- /* Check if PLL is already enabled */
- if (trion_pll_is_enabled(pll, regmap))
- return 0;
- ret = regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N);
- if (ret)
- return ret;
- /* Set operation mode to RUN */
- regmap_write(regmap, PLL_OPMODE(pll), PLL_RUN);
- ret = wait_for_pll_enable_lock(pll);
- if (ret)
- return ret;
- /* Enable the global PLL outputs */
- ret = regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, PLL_OUTCTRL);
- if (ret)
- return ret;
- /* Ensure that the write above goes through before returning. */
- mb();
- return ret;
- }
- static void alpha_pll_pongo_elu_disable(struct clk_hw *hw)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- struct regmap *regmap = pll->clkr.regmap;
- int ret;
- /* Disable the global PLL output */
- ret = regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, 0);
- if (ret)
- return;
- /* Place the PLL mode in STANDBY */
- regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY);
- }
- static unsigned long alpha_pll_pongo_elu_recalc_rate(struct clk_hw *hw,
- unsigned long parent_rate)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- struct regmap *regmap = pll->clkr.regmap;
- u32 l;
- if (regmap_read(regmap, PLL_L_VAL(pll), &l))
- return 0;
- l &= PONGO_PLL_L_VAL_MASK;
- return alpha_pll_calc_rate(parent_rate, l, 0, pll_alpha_width(pll));
- }
- const struct clk_ops clk_alpha_pll_pongo_elu_ops = {
- .prepare = alpha_pll_pongo_elu_prepare,
- .enable = alpha_pll_pongo_elu_enable,
- .disable = alpha_pll_pongo_elu_disable,
- .recalc_rate = alpha_pll_pongo_elu_recalc_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_pongo_elu_ops);
- void clk_pongo_elu_pll_configure(struct clk_alpha_pll *pll,
- struct regmap *regmap,
- const struct alpha_pll_config *config)
- {
- u32 val;
- regmap_update_bits(regmap, PLL_USER_CTL(pll), PONGO_PLL_OUT_MASK,
- PONGO_PLL_OUT_MASK);
- if (trion_pll_is_enabled(pll, regmap))
- return;
- if (regmap_read(regmap, PLL_L_VAL(pll), &val))
- return;
- val &= PONGO_PLL_L_VAL_MASK;
- if (val)
- return;
- clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), config->l);
- clk_alpha_pll_write_config(regmap, PLL_ALPHA_VAL(pll), config->alpha);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL(pll), config->config_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U(pll), config->config_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U1(pll), config->config_ctl_hi1_val);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U2(pll), config->config_ctl_hi2_val);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL(pll),
- config->user_ctl_val | PONGO_PLL_OUT_MASK);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U(pll), config->user_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL(pll), config->test_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U(pll), config->test_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U1(pll), config->test_ctl_hi1_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U2(pll), config->test_ctl_hi2_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U3(pll), config->test_ctl_hi3_val);
- /* Disable PLL output */
- regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, 0);
- }
- EXPORT_SYMBOL_GPL(clk_pongo_elu_pll_configure);
- void clk_rivian_evo_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
- const struct alpha_pll_config *config)
- {
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL(pll), config->config_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U(pll), config->config_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U1(pll), config->config_ctl_hi1_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL(pll), config->test_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U(pll), config->test_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), config->l);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL(pll), config->user_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U(pll), config->user_ctl_hi_val);
- regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY);
- regmap_update_bits(regmap, PLL_MODE(pll),
- PLL_RESET_N | PLL_BYPASSNL | PLL_OUTCTRL,
- PLL_RESET_N | PLL_BYPASSNL);
- }
- EXPORT_SYMBOL_GPL(clk_rivian_evo_pll_configure);
- static unsigned long clk_rivian_evo_pll_recalc_rate(struct clk_hw *hw,
- unsigned long parent_rate)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- u32 l;
- if (regmap_read(pll->clkr.regmap, PLL_L_VAL(pll), &l))
- return 0;
- return parent_rate * l;
- }
- static int clk_rivian_evo_pll_determine_rate(struct clk_hw *hw,
- struct clk_rate_request *req)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- unsigned long min_freq, max_freq;
- u32 l;
- u64 a;
- req->rate = alpha_pll_round_rate(req->rate, req->best_parent_rate, &l,
- &a, 0);
- if (!pll->vco_table || alpha_pll_find_vco(pll, req->rate))
- return 0;
- min_freq = pll->vco_table[0].min_freq;
- max_freq = pll->vco_table[pll->num_vco - 1].max_freq;
- req->rate = clamp(req->rate, min_freq, max_freq);
- return 0;
- }
- const struct clk_ops clk_alpha_pll_rivian_evo_ops = {
- .enable = alpha_pll_lucid_5lpe_enable,
- .disable = alpha_pll_lucid_5lpe_disable,
- .is_enabled = clk_trion_pll_is_enabled,
- .recalc_rate = clk_rivian_evo_pll_recalc_rate,
- .determine_rate = clk_rivian_evo_pll_determine_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_rivian_evo_ops);
- void clk_stromer_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
- const struct alpha_pll_config *config)
- {
- u32 val, val_u, mask, mask_u;
- regmap_write(regmap, PLL_L_VAL(pll), config->l);
- regmap_write(regmap, PLL_ALPHA_VAL(pll), config->alpha);
- regmap_write(regmap, PLL_CONFIG_CTL(pll), config->config_ctl_val);
- if (pll_has_64bit_config(pll))
- regmap_write(regmap, PLL_CONFIG_CTL_U(pll),
- config->config_ctl_hi_val);
- if (pll_alpha_width(pll) > 32)
- regmap_write(regmap, PLL_ALPHA_VAL_U(pll), config->alpha_hi);
- val = config->main_output_mask;
- val |= config->aux_output_mask;
- val |= config->aux2_output_mask;
- val |= config->early_output_mask;
- val |= config->pre_div_val;
- val |= config->post_div_val;
- val |= config->vco_val;
- val |= config->alpha_en_mask;
- val |= config->alpha_mode_mask;
- mask = config->main_output_mask;
- mask |= config->aux_output_mask;
- mask |= config->aux2_output_mask;
- mask |= config->early_output_mask;
- mask |= config->pre_div_mask;
- mask |= config->post_div_mask;
- mask |= config->vco_mask;
- mask |= config->alpha_en_mask;
- mask |= config->alpha_mode_mask;
- regmap_update_bits(regmap, PLL_USER_CTL(pll), mask, val);
- /* Stromer APSS PLL does not enable LOCK_DET by default, so enable it */
- val_u = config->status_val << ALPHA_PLL_STATUS_REG_SHIFT;
- val_u |= config->lock_det;
- mask_u = config->status_mask;
- mask_u |= config->lock_det;
- regmap_update_bits(regmap, PLL_USER_CTL_U(pll), mask_u, val_u);
- regmap_write(regmap, PLL_TEST_CTL(pll), config->test_ctl_val);
- regmap_write(regmap, PLL_TEST_CTL_U(pll), config->test_ctl_hi_val);
- if (pll->flags & SUPPORTS_FSM_MODE)
- qcom_pll_set_fsm_mode(regmap, PLL_MODE(pll), 6, 0);
- }
- EXPORT_SYMBOL_GPL(clk_stromer_pll_configure);
- static int clk_alpha_pll_stromer_determine_rate(struct clk_hw *hw,
- struct clk_rate_request *req)
- {
- u32 l;
- u64 a;
- req->rate = alpha_pll_round_rate(req->rate, req->best_parent_rate,
- &l, &a, ALPHA_REG_BITWIDTH);
- return 0;
- }
- static int clk_alpha_pll_stromer_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long prate)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- int ret;
- u32 l;
- u64 a;
- rate = alpha_pll_round_rate(rate, prate, &l, &a, ALPHA_REG_BITWIDTH);
- regmap_write(pll->clkr.regmap, PLL_L_VAL(pll), l);
- a <<= ALPHA_REG_BITWIDTH - ALPHA_BITWIDTH;
- regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL(pll), a);
- regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL_U(pll),
- a >> ALPHA_BITWIDTH);
- regmap_update_bits(pll->clkr.regmap, PLL_USER_CTL(pll),
- PLL_ALPHA_EN, PLL_ALPHA_EN);
- if (!clk_hw_is_enabled(hw))
- return 0;
- /*
- * Stromer PLL supports Dynamic programming.
- * It allows the PLL frequency to be changed on-the-fly without first
- * execution of a shutdown procedure followed by a bring up procedure.
- */
- regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll), PLL_UPDATE,
- PLL_UPDATE);
- ret = wait_for_pll_update(pll);
- if (ret)
- return ret;
- return wait_for_pll_enable_lock(pll);
- }
- const struct clk_ops clk_alpha_pll_stromer_ops = {
- .enable = clk_alpha_pll_enable,
- .disable = clk_alpha_pll_disable,
- .is_enabled = clk_alpha_pll_is_enabled,
- .recalc_rate = clk_alpha_pll_recalc_rate,
- .determine_rate = clk_alpha_pll_stromer_determine_rate,
- .set_rate = clk_alpha_pll_stromer_set_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_stromer_ops);
- static int clk_alpha_pll_stromer_plus_set_rate(struct clk_hw *hw,
- unsigned long rate,
- unsigned long prate)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- u32 l, alpha_width = pll_alpha_width(pll);
- int ret, pll_mode;
- u64 a;
- rate = alpha_pll_round_rate(rate, prate, &l, &a, alpha_width);
- ret = regmap_read(pll->clkr.regmap, PLL_MODE(pll), &pll_mode);
- if (ret)
- return ret;
- regmap_write(pll->clkr.regmap, PLL_MODE(pll), 0);
- /* Delay of 2 output clock ticks required until output is disabled */
- udelay(1);
- regmap_write(pll->clkr.regmap, PLL_L_VAL(pll), l);
- if (alpha_width > ALPHA_BITWIDTH)
- a <<= alpha_width - ALPHA_BITWIDTH;
- regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL(pll), a);
- regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL_U(pll),
- a >> ALPHA_BITWIDTH);
- regmap_update_bits(pll->clkr.regmap, PLL_USER_CTL(pll),
- PLL_ALPHA_EN, PLL_ALPHA_EN);
- regmap_write(pll->clkr.regmap, PLL_MODE(pll), PLL_BYPASSNL);
- /* Wait five micro seconds or more */
- udelay(5);
- regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll), PLL_RESET_N,
- PLL_RESET_N);
- /* The lock time should be less than 50 micro seconds worst case */
- usleep_range(50, 60);
- ret = wait_for_pll_enable_lock(pll);
- if (ret) {
- pr_err("Wait for PLL enable lock failed [%s] %d\n",
- clk_hw_get_name(hw), ret);
- return ret;
- }
- if (pll_mode & PLL_OUTCTRL)
- regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll), PLL_OUTCTRL,
- PLL_OUTCTRL);
- return 0;
- }
- const struct clk_ops clk_alpha_pll_stromer_plus_ops = {
- .prepare = clk_alpha_pll_enable,
- .unprepare = clk_alpha_pll_disable,
- .is_enabled = clk_alpha_pll_is_enabled,
- .recalc_rate = clk_alpha_pll_recalc_rate,
- .determine_rate = clk_alpha_pll_stromer_determine_rate,
- .set_rate = clk_alpha_pll_stromer_plus_set_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_stromer_plus_ops);
- void clk_regera_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
- const struct alpha_pll_config *config)
- {
- clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), config->l);
- clk_alpha_pll_write_config(regmap, PLL_ALPHA_VAL(pll), config->alpha);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL(pll), config->config_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U(pll), config->config_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U1(pll), config->config_ctl_hi1_val);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL(pll), config->user_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U(pll), config->user_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U1(pll), config->user_ctl_hi1_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL(pll), config->test_ctl_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U(pll), config->test_ctl_hi_val);
- clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U1(pll), config->test_ctl_hi1_val);
- /* Set operation mode to STANDBY */
- regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY);
- }
- EXPORT_SYMBOL_GPL(clk_regera_pll_configure);
- const struct clk_ops clk_alpha_pll_regera_ops = {
- .enable = clk_zonda_pll_enable,
- .disable = clk_zonda_pll_disable,
- .is_enabled = clk_alpha_pll_is_enabled,
- .recalc_rate = clk_trion_pll_recalc_rate,
- .determine_rate = clk_alpha_pll_determine_rate,
- .set_rate = clk_zonda_pll_set_rate,
- };
- EXPORT_SYMBOL_GPL(clk_alpha_pll_regera_ops);
- void qcom_clk_alpha_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap)
- {
- const struct clk_init_data *init = pll->clkr.hw.init;
- switch (GET_PLL_TYPE(pll)) {
- case CLK_ALPHA_PLL_TYPE_LUCID_OLE:
- clk_lucid_ole_pll_configure(pll, regmap, pll->config);
- break;
- case CLK_ALPHA_PLL_TYPE_LUCID_EVO:
- clk_lucid_evo_pll_configure(pll, regmap, pll->config);
- break;
- case CLK_ALPHA_PLL_TYPE_TAYCAN_ELU:
- clk_taycan_elu_pll_configure(pll, regmap, pll->config);
- break;
- case CLK_ALPHA_PLL_TYPE_RIVIAN_EVO:
- case CLK_ALPHA_PLL_TYPE_RIVIAN_ELU:
- clk_rivian_evo_pll_configure(pll, regmap, pll->config);
- break;
- case CLK_ALPHA_PLL_TYPE_TRION:
- clk_trion_pll_configure(pll, regmap, pll->config);
- break;
- case CLK_ALPHA_PLL_TYPE_HUAYRA_2290:
- clk_huayra_2290_pll_configure(pll, regmap, pll->config);
- break;
- case CLK_ALPHA_PLL_TYPE_FABIA:
- clk_fabia_pll_configure(pll, regmap, pll->config);
- break;
- case CLK_ALPHA_PLL_TYPE_AGERA:
- clk_agera_pll_configure(pll, regmap, pll->config);
- break;
- case CLK_ALPHA_PLL_TYPE_PONGO_ELU:
- clk_pongo_elu_pll_configure(pll, regmap, pll->config);
- break;
- case CLK_ALPHA_PLL_TYPE_ZONDA:
- case CLK_ALPHA_PLL_TYPE_ZONDA_OLE:
- clk_zonda_pll_configure(pll, regmap, pll->config);
- break;
- case CLK_ALPHA_PLL_TYPE_STROMER:
- case CLK_ALPHA_PLL_TYPE_STROMER_PLUS:
- clk_stromer_pll_configure(pll, regmap, pll->config);
- break;
- case CLK_ALPHA_PLL_TYPE_DEFAULT:
- case CLK_ALPHA_PLL_TYPE_DEFAULT_EVO:
- case CLK_ALPHA_PLL_TYPE_HUAYRA:
- case CLK_ALPHA_PLL_TYPE_HUAYRA_APSS:
- case CLK_ALPHA_PLL_TYPE_BRAMMO:
- case CLK_ALPHA_PLL_TYPE_BRAMMO_EVO:
- clk_alpha_pll_configure(pll, regmap, pll->config);
- break;
- default:
- WARN(1, "%s: invalid pll type\n", init->name);
- break;
- }
- }
- EXPORT_SYMBOL_GPL(qcom_clk_alpha_pll_configure);
- static int clk_alpha_pll_slew_update(struct clk_alpha_pll *pll)
- {
- u32 val;
- int ret;
- regmap_set_bits(pll->clkr.regmap, PLL_MODE(pll), PLL_UPDATE);
- regmap_read(pll->clkr.regmap, PLL_MODE(pll), &val);
- ret = wait_for_pll_update(pll);
- if (ret)
- return ret;
- /*
- * Hardware programming mandates a wait of at least 570ns before polling the LOCK
- * detect bit. Have a delay of 1us just to be safe.
- */
- udelay(1);
- return wait_for_pll_enable_lock(pll);
- }
- static int clk_alpha_pll_slew_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long parent_rate)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- const struct pll_vco *curr_vco, *vco;
- unsigned long freq_hz;
- u64 a;
- u32 l;
- freq_hz = alpha_pll_round_rate(rate, parent_rate, &l, &a, ALPHA_REG_BITWIDTH);
- if (freq_hz != rate) {
- pr_err("alpha_pll: Call clk_set_rate with rounded rates!\n");
- return -EINVAL;
- }
- curr_vco = alpha_pll_find_vco(pll, clk_hw_get_rate(hw));
- if (!curr_vco) {
- pr_err("alpha pll: not in a valid vco range\n");
- return -EINVAL;
- }
- vco = alpha_pll_find_vco(pll, freq_hz);
- if (!vco) {
- pr_err("alpha pll: not in a valid vco range\n");
- return -EINVAL;
- }
- /*
- * Dynamic pll update will not support switching frequencies across
- * vco ranges. In those cases fall back to normal alpha set rate.
- */
- if (curr_vco->val != vco->val)
- return clk_alpha_pll_set_rate(hw, rate, parent_rate);
- clk_alpha_pll_update_configs(pll, NULL, l, a, ALPHA_REG_BITWIDTH, false);
- /* Ensure that the write above goes before slewing the PLL */
- mb();
- if (clk_hw_is_enabled(hw))
- return clk_alpha_pll_slew_update(pll);
- return 0;
- }
- /*
- * Slewing plls should be bought up at frequency which is in the middle of the
- * desired VCO range. So after bringing up the pll at calibration freq, set it
- * back to desired frequency(that was set by previous clk_set_rate).
- */
- static int clk_alpha_pll_calibrate(struct clk_hw *hw)
- {
- struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
- struct clk_hw *parent;
- const struct pll_vco *vco;
- unsigned long calibration_freq, freq_hz;
- u64 a;
- u32 l;
- int rc;
- parent = clk_hw_get_parent(hw);
- if (!parent) {
- pr_err("alpha pll: no valid parent found\n");
- return -EINVAL;
- }
- vco = alpha_pll_find_vco(pll, clk_hw_get_rate(hw));
- if (!vco) {
- pr_err("alpha pll: not in a valid vco range\n");
- return -EINVAL;
- }
- /*
- * As during slewing plls vco_sel won't be allowed to change, vco table
- * should have only one entry table, i.e. index = 0, find the
- * calibration frequency.
- */
- calibration_freq = (pll->vco_table[0].min_freq + pll->vco_table[0].max_freq) / 2;
- freq_hz = alpha_pll_round_rate(calibration_freq, clk_hw_get_rate(parent),
- &l, &a, ALPHA_REG_BITWIDTH);
- if (freq_hz != calibration_freq) {
- pr_err("alpha_pll: call clk_set_rate with rounded rates!\n");
- return -EINVAL;
- }
- clk_alpha_pll_update_configs(pll, vco, l, a, ALPHA_REG_BITWIDTH, false);
- /* Bringup the pll at calibration frequency */
- rc = clk_alpha_pll_enable(hw);
- if (rc) {
- pr_err("alpha pll calibration failed\n");
- return rc;
- }
- /*
- * PLL is already running at calibration frequency.
- * So slew pll to the previously set frequency.
- */
- freq_hz = alpha_pll_round_rate(clk_hw_get_rate(hw),
- clk_hw_get_rate(parent), &l, &a, ALPHA_REG_BITWIDTH);
- pr_debug("pll %s: setting back to required rate %lu, freq_hz %ld\n",
- clk_hw_get_name(hw), clk_hw_get_rate(hw), freq_hz);
- clk_alpha_pll_update_configs(pll, NULL, l, a, ALPHA_REG_BITWIDTH, true);
- return clk_alpha_pll_slew_update(pll);
- }
- static int clk_alpha_pll_slew_enable(struct clk_hw *hw)
- {
- int rc;
- rc = clk_alpha_pll_calibrate(hw);
- if (rc)
- return rc;
- return clk_alpha_pll_enable(hw);
- }
- const struct clk_ops clk_alpha_pll_slew_ops = {
- .enable = clk_alpha_pll_slew_enable,
- .disable = clk_alpha_pll_disable,
- .recalc_rate = clk_alpha_pll_recalc_rate,
- .determine_rate = clk_alpha_pll_determine_rate,
- .set_rate = clk_alpha_pll_slew_set_rate,
- };
- EXPORT_SYMBOL(clk_alpha_pll_slew_ops);
|