Merge "Match the config from ubuntu"

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author	Jiang, Yunhong <yunhong.jiang@intel.com>	2017-03-08 23:37:03 +0000
committer	Gerrit Code Review <gerrit@opnfv.org>	2017-03-08 23:37:03 +0000
commit	c189ccac5702322ed843fe17057035b7222a59b6 (patch)
tree	207c76d6bb1531a69f54c302bc2a73ae444dc4af /kernel/arch/arm/mach-spear/spear13xx.c
parent	7ca470b86711f5f1abaa439de4ea0626f5849b0b (diff)
parent	977317100f3b52caafb091ad5924e5dd81982433 (diff)

Merge "Match the config from ubuntu"

Diffstat (limited to 'kernel/arch/arm/mach-spear/spear13xx.c')

0 files changed, 0 insertions, 0 deletions

\ ***************************************************************************** \ * Copyright (c) 2004, 2008 IBM Corporation \ * All rights reserved. \ * This program and the accompanying materials \ * are made available under the terms of the BSD License \ * which accompanies this distribution, and is available at \ * http://www.opensource.org/licenses/bsd-license.php \ * \ * Contributors: \ * IBM Corporation - initial implementation \ ****************************************************************************/ \ AMD 8111 I/O hub. \ See the documentation at http://www.amd.com ; the datasheet for this chip is \ document #24674. \ Config space access functions - we're touching multiple device numbers and \ device functions below, so we've got to add our own my-space base here: : config-b@ dup 1000 < IF my-space + THEN config-b@ ; : config-w@ dup 1000 < IF my-space + THEN config-w@ ; : config-l@ dup 1000 < IF my-space + THEN config-l@ ; : config-b! dup 1000 < IF my-space + THEN config-b! ; : config-w! dup 1000 < IF my-space + THEN config-w! ; : config-l! dup 1000 < IF my-space + THEN config-l! ; \ First, some master config. Not all of this logically belongs to just \ one function, and certainly not to the LPC bridge; also, we'll \ initialize all functions in "downstream" order, and this code has to be \ run first. So do it now. 00 842 config-b! \ Disable 8237 & 8254 & 8259's. We're not a PC. u3? IF 80 847 config-b! \ Disable EHCI, as it is terminally broken. THEN 03 848 config-b! \ Enable LPC, IDE; disable I2C, SMM, AC'97 functions. 01 849 config-b! \ Enable USB, disable 100Mb enet. 01 84b config-b! \ Enable IO-APIC. fec00000 s" ioapic.fs" included 00 init-ioapic \ Program PNPIRQ[0,1,2] as IRQ #D,E,F; switch those GPIOs to low-active. 0b 848 config-b! \ enable devB:3 7000 b58 config-l! \ map PMxx at pci i/o 7000 d1 b41 config-b! \ enable access to PMxx space \ on JS20 the planar id is encoded in GPIO 29, 30 and 31 \ >=5 is GA2 else it is GA1 : (planar-id) ( -- planar-id) [ 70dd io-c@ 5 rshift 1 and ] LITERAL [ 70de io-c@ 5 rshift 2 and ] LITERAL [ 70df io-c@ 5 rshift 4 and ] LITERAL + + 7 xor ; u3? IF ['] (planar-id) to planar-id THEN 8 70d3 io-c! 8 70d4 io-c! 8 70d5 io-c! \ set the pins to low-active bimini? IF 5 70c4 io-c! THEN \ on bimini set gpio4 as output and high to power up USB fec b44 config-w! \ set PNPIRQ pnpirq2 -> f , pnpirq1 -> e pnpirq0 -> c 51 b41 config-b! \ disable access to PMxx space 03 848 config-b! \ disable devB:3 \ The function of the PCI controller BARs change depending on the mode the \ controller is in. \ And the default is legacy mode. Gross. 05 909 config-b! \ Enable native PCI mode. 03 940 config-b! \ Enable both ports. \ Enable HPET on 8111, at address fe000000. fe000001 8a0 config-l! : >hpet fe000000 + ; : hpet@ >hpet rl@-le ; : hpet! >hpet rl!-le ; INCLUDE freq.fs \ Disable HPET. 0 8a0 config-l! \ 8111 has only 16 bits of PCI I/O space. Get the address in range. 8000 next-pci-io ! \ before disabling EHCI it needs to be reset \ first we are setting up the BAR0, so that we can talk to the \ memory mapped controller; not using the PCI scan because we just \ want a temporary setup : really-disable-broken-amd8111-ehci ( -- ) \ this word only works on U4 systems (JS21/Bimini) \ yeah, hardcoded! f2000000 to puid \ the PCI scan would assign pci-next-mmio to that device \ let's just take that address pci-next-mmio @ 100000 #aligned \ pci-bus-number 10 lshift 210 or could be something like 70210 \ 7: pci-bus-number \ 2: device function \ 10: offset 10 (bar 0) pci-bus-number 10 lshift 210 or rtas-config-l! \ enable memory space pci-bus-number 10 lshift 204 or dup rtas-config-l@ 2 or swap rtas-config-l! pci-next-mmio @ 100000 #aligned ( base ) \ Sequence prescribed for resetting the EHCI contoller \ If Run/Stop bit (ECAP30 bit 0) is 1 \ Set Run/Stop bit to 0 \ wait 2ms dup 30 + rl@ 1 and 1 = IF dup 30 + rl@ 1 or over 30 + rl! 2 ms THEN \ While HCHalted bit (ECAP34 bit 12) is 0 (still running, wait forever) \ wait 2ms BEGIN dup 34 + rl@ 1000 and 0= 2 ms UNTIL \ Set HCReset bit (ECAP30 bit 1) dup 30 + 2 swap rl! \ While HCReset bit is 1 (wait forever for reset to complete) \ wait 2ms BEGIN dup 30 + rl@ 2 and 0= 2 ms UNTIL drop \ now it is really disabled \ disable memory space access again 2100000 pci-bus-number 10 lshift 204 or rtas-config-l! 80 847 config-b! \ Disable EHCI, as it is terminally broken. ; my-space pci-class-name type cr \ copied from pci-properties.fs and pci-scan.fs \ changed to disable the EHCI completely just before the scan \ and after mem/IO transactions have been enabled \ Setup the Base and Limits in the Bridge \ and scan the bus(es) beyond that Bridge : pci-bridge-probe-amd8111 ( addr -- ) dup pci-bridge-set-bases \ SetUp all Base Registers dup pci-bridge-range-props \ Setup temporary "range pci-bus-number 1+ TO pci-bus-number \ increase number of busses found pci-device-vec-len 1+ TO pci-device-vec-len \ increase the device-slot vector depth dup \ stack config-addr for pci-bus! FF swap \ Subordinate Bus Number ( for now to max to open all subbusses ) pci-bus-number swap \ Secondary Bus Number ( the new busnumber ) dup pci-addr2bus swap \ Primary Bus Number ( the current bus ) pci-bus! \ and set them into the bridge pci-enable \ enable mem/IO transactions \ at this point we can talk to the broken EHCI controller really-disable-broken-amd8111-ehci dup pci-bus-scnd@ func-pci-probe-bus \ and probe the secondary bus dup pci-bus-number swap pci-bus-subo! \ set SubOrdinate Bus Number to current number of busses pci-device-vec-len 1- TO pci-device-vec-len \ decrease the device-slot vector depth dup pci-bridge-set-limits \ SetUp all Limit Registers drop \ forget the config-addr ; \ used to set up all unknown Bridges. \ If a Bridge has no special handling for setup \ the device file (pci-bridge_VENDOR_DEVICE.fs) can call \ this word to setup busses and scan beyond. : pci-bridge-generic-setup-amd8111 ( addr -- ) pci-device-slots >r \ save the slot array on return stack dup pci-common-props \ set the common properties before scanning the bus s" pci" device-type \ the type is allways "pci" dup pci-bridge-probe-amd8111 \ find all device connected to it dup assign-all-bridge-bars \ set up all memory access BARs dup pci-set-irq-line \ set the interrupt pin dup pci-set-capabilities \ set up the capabilities pci-bridge-props \ and generate all properties r> TO pci-device-slots \ and reset the slot array ; : amd8111-bridge-setup my-space u3? takeover? or IF \ if it is js20 or we are coming from takeover \ we just do the normal setup pci-bridge-generic-setup ELSE pci-bridge-generic-setup-amd8111 THEN s" pci" device-name ; amd8111-bridge-setup


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