Commit Graph

149 Commits

Author SHA1 Message Date
Landon J. Fuller
be9a13138e bhnd(4): Use the new BHND_CAP_BP64 capability flag to exclude DMA
translations unsupported by the backplane.
2018-03-29 19:48:50 +00:00
Landon J. Fuller
f3524ec8ed bhnd(4): include a subset of the ChipCommon capability flags in bhnd_chipid;
this provides early access to device capability flags required by bhnd(4)
bus and bhndb(4) bridge drivers.
2018-03-29 19:44:15 +00:00
Landon J. Fuller
397b9e40e9 Add missing NULL checks when calling malloc(M_NOWAIT) in
bhnd_nv_strdup/bhnd_nv_strndup.

If malloc(9) failed during initial bhnd(4) attach, while allocating the root
NVRAM path string ("/"), the returned NULL pointer would be passed as the
destination to memcpy().

Reported by:	Ilja Van Sprundel <ivansprundel@ioactive.com>
2018-03-22 22:13:46 +00:00
Landon J. Fuller
7c7c726bca siba(4): Ignore disabled per-core address match entries.
Previously, the address regions described by disabled admatch entries would
be treated as being mapped to the given core; while incorrect, this was
essentially harmless given that the entries describe unused address space
on the few affected devices.

We now perform parsing of per-core admatch registers and interrupt flags in
siba_erom, correctly skip any disabled admatch entries, and use the
siba_erom API in siba_add_children() to perform enumeration of attached
cores.
2018-02-12 19:36:26 +00:00
Landon J. Fuller
d177c19903 bwn(4): migrate bwn(4) to the native bhnd(9) interface, and drop siba_bwn.
- Remove the shim interface that allowed bwn(4) to use either siba_bwn or
  bhnd(4), replacing all siba_bwn calls with their bhnd(4) bus equivalents.
- Drop the legay, now-unused siba_bwn bus driver.
- Clean up bhnd(4) board flag defines referenced by bwn(4).

Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D13518
2018-02-05 23:38:15 +00:00
Landon J. Fuller
f248a99a0e bhnd_chipc(4): Fix leak of child device ivars by explicitly deleting
any children prior to detach.

With the newbus child deletion ordering changes introduced in r307518,
parent devices are now detached (and their driver set to NULL) prior to
detaching and deleting child devices; child-related bus methods (e.g.
BUS_CHILD_DETACHED, BUS_CHILD_DELETED) are no longer be dispatched to the
parent device driver after it returns 0 (success) from DEVICE_DETACH.

Sponsored by:   The FreeBSD Foundation
2018-01-20 01:55:34 +00:00
Landon J. Fuller
a225321fbc bhnd/bwn(4): Define a bhnd(4) softmodem device class for the v.90 modem
codec core, and mark the core as unpopulated on all BCM4306 bwn(4) devices.

Sponsored by:	The FreeBSD Foundation
2018-01-19 22:43:08 +00:00
Landon J. Fuller
711221efd8 bhndb_pci(4): Implement bridge support for CardBus-attached devices.
- Extend the probe method to accept devclasses that inherit from the pci
   devclass (e.g. cardbus).
 - Some BCM4306-based CardBus adapters appear to advertise 4K SPROM, but
   only the first 2K is mapped into BAR0. We can safely assume that the
   SPROM data fits within the first 2K of the SPROM, rather than rejecting
   the SPROM mapping as invalid.

Sponsored by:	The FreeBSD Foundation
2018-01-19 22:22:02 +00:00
Landon J. Fuller
1c8edc1ed8 bhnd(4): fix a few bugs in pwrctl/fixed-clock device support.
- Do not panic on siba(4) detach when the bhnd(4) bus calls
   bhnd_get_pmu_info() on a PMU-less device.
 - Fix bhnd_pwrctl attach/detach on fixed-clock devices:
    - Treat bhnd_pwrctl_updateclk() as a no-op on fixed-clock devices.
    - Use bhnd_pwrctl_updateclk() to perform the appropriate clock
      transition on detach.

Sponsored by:	The FreeBSD Foundation
2018-01-19 21:58:48 +00:00
Landon J. Fuller
5ad00fa2cf bhnd_chipc(4): Fix the assignment of non-wildcard child unit numbers
introduced in r326102 and r326109; all chipc children should be added with
a wildcard unit (-1).

Sponsored by:	The FreeBSD Foundation
2018-01-19 21:36:28 +00:00
Landon J. Fuller
84d6a5d4a7 bhndb_pci(4): fix incorrect BHND_PCI_SRSH_PI workaround
On a SPROM-less device, the PCI(e) bridge core will be initialized with its
power-on-reset defaults; this can leave the SPROM-derived BHND_PCI_SRSH_PI
value pointing to the wrong backplane address. This value is used by the
PCI core when performing address translation between the static register
windows in BAR0 that map the PCI core's register block, and backplane
address space.

Previously, bhndb_pci(4) incorrectly used the potentially invalid static
BAR0 PCI register windows when attempting to correct the BHND_PCI_SRSH_PI
value in the PCI core's SPROM shadow.

Instead, we now read/update BHND_PCI_SRSH_PI by fetching the PCI core's
backplane address from the core enumeration table, and then using a dynamic
register window to explicitly map the PCI core's register block into BAR0.

Sponsored by:	The FreeBSD Foundation
2018-01-17 03:34:26 +00:00
Pedro F. Giffuni
92e1020a52 dev/bhnd: Make use of mallocarray(9).
This makes a calloc-like definition check for overflows as is common
practice.
2018-01-11 15:44:03 +00:00
Landon J. Fuller
07a0a243ec bhnd(4): Add missing BCM4312 backplane clock speed entry.
The default 80MHz clock speed returned by bhnd_pmu_si_clock() was already
correct; this just prevents the "No backplane clock specified" warning
printf from being emitted when querying backplane clock speed.

Sponsored by:	The FreeBSD Foundation
2018-01-04 19:47:01 +00:00
Eitan Adler
caa7e52f3f kernel: Fix several typos and minor errors
- duplicate words
- typos
- references to old versions of FreeBSD

Reviewed by:	imp, benno
2017-12-27 03:23:21 +00:00
Landon J. Fuller
6585f74d30 bhnd(4): Fix the pa0itssit/pa1itssit NVRAM variable type definitions
required by bwn(4); idle TSSI target values are expressed as signed
integers.

Sponsored by:	The FreeBSD Foundation
2017-12-16 05:22:16 +00:00
Landon J. Fuller
80a7c0f53b bhndb(4): Enable addrext support on DMA64 devices, and fix an incorrect DMA
DMA boundary constraint applied in bhndb_dma_tag_create().

Sponsored by:	The FreeBSD Foundation
2017-12-16 04:35:37 +00:00
Landon J. Fuller
6467a17b49 bhnd(4)/bwn(4): Fix a number of small issues reported by Coverity.
- Fix reference of uninitialized error value in bhndb_generic_resume() if
  the dynamic window count is 0.

- Fix incorrect bhnd_pmu(4) UPTME_MASK and PLL0_PC2_WILD_INT_MASK
  constants.

- Variable definitions referenced by our generated SPROM layouts will never
  be NULL, but add explicit asserts to make that clear.

- Add missing variable initialization in bhnd_nvram_sprom_ident().

- Fix leak of driver array in bhnd_erom_probe_driver_classes().

- Fix zero-length memset() in bhndb_pci_eio_init().

- Fix an off-by-one error and potential invalid OOBSEL bit shift operation
  in bcma_dinfo_init_intrs().

- Remove dead code in siba_suspend_hw().

- Fix duplicate call to bhnd_pmu_enable_regulator() in both the enable and
  disable code paths of bhnd_compat_cc_pmu_set_ldoparef().

Reported by:	Coverity
CIDs:		1355194, 1362020, 1362022, 1373114, 1366563, 1373115,
		1381569, 1381579, 1383555, 1383566, 1383571
Sponsored by:	The FreeBSD Foundation
2017-12-15 04:51:47 +00:00
Landon J. Fuller
c7f55202d3 bhndb(4): Fix two register window overcommit bugs introduced in r326297:
- The window target must always be updated when stealing a register window.
- Fix missing initialization of bhndb(4) region alloc_flags when
  registering statically mapped port regions (caught by scan-build).

Approved by:	adrian (mentor, implicit)
Sponsored by:	The FreeBSD Foundation
2017-12-14 03:41:12 +00:00
Landon J. Fuller
03362f9a6f bhnd_chipc(4): Correct typo in flag macros that broke clearing of GPIO
pin flags.

Approved by:	adrian (mentor, implicit)
Sponsored by:	The FreeBSD Foundation
2017-12-14 03:12:05 +00:00
Landon J. Fuller
7f1c814bb3 bhnd(4): Add missing enclosing parentheses to the bhnd bus space macros to
avoid precedence bugs.

Approved by:	adrian (mentor, implicit)
Sponsored by:	The FreeBSD Foundation
2017-12-14 03:03:08 +00:00
Landon J. Fuller
566ca880a1 bhnd(4): Include board_devid in the bhnd_board_info structure, and populate
the expected default board_vendor value on MIPS SoCs.

This is required by bwn(4) to differentiate between single-band and
dual-band device variants that otherwise share a common chip ID.

Approved by:	adrian (mentor, implicit)
Sponsored by:	The FreeBSD Foundation
2017-12-14 01:58:05 +00:00
Pedro F. Giffuni
6e778a7efd SPDX: license IDs for some ISC-related files. 2017-12-08 15:57:29 +00:00
Landon J. Fuller
78baa4d625 bhnd_pmu(4): Do not leak our chipc provider reference or clkctl state in
failure paths of bhnd_pmu_attach()

Approved by:	adrian (mentor, implicit)
Sponsored by:	The FreeBSD Foundation
2017-12-02 01:10:45 +00:00
Landon J. Fuller
d16875a806 bhndb(4): Fix leak of child devices and MSI vectors.
- Add missing call to device_delete_children() in bhndb_detach(), without
  which we're left with stale child devices on module unload.
- Pass the parent PCI device to pci_release_msi(), not the bhndb_pci(4)
  child.

Approved by:	adrian (mentor, implicit)
Sponsored by:	The FreeBSD Foundation
2017-12-02 01:07:41 +00:00
Landon J. Fuller
19b3e4aa48 bhnd_chipc(4): Break cyclic references to the ChipCommon device
bhnd_chipc's children may hold strong provider references to their parent;
we must detach any children before attempting to deregister the bhnd_chipc
device as a bus service provider.

Approved by:	adrian (mentor, implicit)
Sponsored by:	The FreeBSD Foundation
2017-12-02 00:52:59 +00:00
Landon J. Fuller
1fe84e6f44 bhndb(4): Fix incorrect assertion in bhndb_deregister_intr_handler().
When deregistered, a handler should be in an 'active' state.

Approved by:	adrian (mentor, implicit)
Sponsored by:	The FreeBSD Foundation
2017-12-02 00:09:58 +00:00
Landon J. Fuller
802cb4229e siba(4): Add support for devices have neither PMU nor PWRCTL support.
Very early BHND Wi-Fi devices (e.g. BCM4318) do not support any form of
dynamic clock control; on these devices, any PMU requests that cannot be
met by the device's fixed clock state will return an appropriate error
code.

Approved by:	adrian (mentor, implicit)
Sponsored by:	The FreeBSD Foundation
2017-11-28 00:42:44 +00:00
Landon J. Fuller
eaa5fb4b80 bhndb(4): Implement bridge support for the BCM4312 and other PCI_V0 chipsets.
Very early (PCI_V0) Broadcom PCI Wi-Fi chipsets have a few quirks when
compared to later PCI(e) core revisions:

- The standard static BAR0 mapping of the PCI core registers is discontiguous,
  with siba's cfg0 register block mapped distinctly from the other core
  registers.
- No dedicated ChipCommon register mapping is provided; instead, the
  single configurable register window must be used to access both
  ChipCommon and D11 core registers. The D11 core's operational semantics
  guarantee the safety of -- after disabling interrupts -- borrowing
  the single dynamic register window to perform the few ChipCommon
  operations required by a driver.

To support these early PCI devices:

- Allow defining multiple discontiguous BHNDB_REGWIN_T_CORE register
  windows that map a single port/region, and producing bridged resource
  allocations backed by those discontiguous windows.
- Support stealing existing register window allocations to fulfill indirect
  bhnd(4) bus I/O requests within address ranges tagged with
  BHNDB_ALLOC_FULFILL_ON_OVERCOMMIT.
- Fix an inverted test of bhndb_is_pcie_attached() that disabled
  PCI-only clock bring-up required by these devices.

Approved by:	adrian (mentor, implicit)
Sponsored by:	The FreeBSD Foundation
2017-11-28 00:12:14 +00:00
Landon J. Fuller
b8bfab43ad siba(4): fix workaround for BCM4312 D11 core backplane timeouts
The SIBA_QUIRK_PCIE_D11_SB_TIMEOUT quirk should match on all BCM4312
revisions, and backplane service timeouts must also be disabled.

Approved by:	adrian (mentor, implicit)
Sponsored by:	The FreeBSD Foundation
2017-11-27 22:38:44 +00:00
Landon J. Fuller
3fcd245ef1 bhnd(4): Print the core's hardware revision in bhnd(4)'s
BUS_PROBE_NOMATCH().

Approved by:	adrian (mentor, implicit)
Sponsored by:	The FreeBSD Foundation
2017-11-27 22:29:35 +00:00
Landon J. Fuller
ac59515b98 bhnd(4): Fix bcma/siba core reset behavior
Add missing support for specifying I/O control flags during core reset,
and resolve a number of siba(4)-specific reset issues:

- Add missing check for target reject flags in siba_is_hw_suspended().
- Remove incorrect wait on SIBA_TMH_BUSY when modifying any target state
  register; this should only be done when waiting for initiated
  transactions to clear.
- Add missing wait on SIBA_IM_BY when asserting SIBA_IM_RJ.
- Overwrite any previously set SIBA_TML_REJ flag when bringing the core
  out of reset. This fixes a lockup that occured when we brought up a core
  (after reboot) that had previously been placed into RESET by siba_bwn(4).

Approved by:	adrian (mentor, implicit)
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D13039
2017-11-27 22:13:30 +00:00
Landon J. Fuller
05ed3f9063 bhnd(4) update inline documentation comments and man pages.
This includes a number of copyedits for the inline code documentation
comments, updates to the existing bhnd(4), bhndb(4), bcma(4), and siba(4)
man pages, and new man pages for bhnd_chipc(4), bhnd_pmu(4), bhndb_pci(4),
bhnd(9), and bhnd_erom(9).

Approved by:	adrian (mentor)
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D13021
2017-11-27 21:30:49 +00:00
Landon J. Fuller
2f909a9f74 bhnd(4): Add a basic ChipCommon GPIO driver sufficient to support bwn(4)
The driver is functional on both BHND Wi-Fi adapters and MIPS SoCs, but
does not currently include support for features not required by bwn(4),
including GPIO interrupt handling.

Approved by:	adrian (mentor, implicit)
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D12708
2017-11-22 23:10:20 +00:00
Landon J. Fuller
4e96bf3a37 bhnd(4): extend the PMU APIs to support bwn(4)
The bwn(4) driver requires a number of extensions to the bhnd(4) PMU
interface to support external configuration of PLLs, LDOs, and other
parameters that require chipset or PHY-specific workarounds.

These changes add support for:

- Writing raw voltage register values to PHY-specific LDO regulator
  registers (required by LP-PHY).
- Enabling/disabling PHY-specific LDOs (required by LP-PHY)
- Writing to arbitrary PMU chipctrl registers (required for common PHY PLL
  reset support).
- Requesting chipset/PLL-specific spurious signal avoidance modes.
- Querying clock frequency and latency.

Additionally, rather than updating legacy PWRCTL support to conform to the
new PMU interface:

- PWRCTL API is now provided by a bhnd_pwrctl_if.m interface.
- Since PWRCTL is only found in older SSB-based chipsets, translation from
  bhnd(4) bus APIs to corresponding PWRCTL operations is now handled
  entirely within the siba(4) driver.
- The PWRCTL-specific host bridge clock gating APIs in bhnd_bus_if.m have
  been lifted out into a standalone bhnd_pwrctl_hostb_if.m interface.

Approved by:	adrian (mentor, implicit)
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D12664
2017-11-22 20:27:46 +00:00
Landon J. Fuller
9ed453245b bhnd(4): Add support for querying DMA address translation parameters
BHND Wi-Fi chipsets and SoCs share a common DMA engine, operating within
backplane address space. To support host DMA on Wi-Fi chipsets, the bridge
core maps host address space onto the backplane; any host addresses must
be translated to their corresponding backplane address.


- Defines a new bhnd_get_dma_translation(9) API to support querying DMA
  address translation parameters from the bhnd(4) bus.
- Extends bhndb(4) to provide DMA translation descriptors from a DMA
  address translation table defined in the host bridge-specific
  bhndb_hwcfg.
- Defines bhndb(4) DMA address translation tables for all supported host
  bridge cores.
- Extends mips/broadcom's bhnd_nexus driver to return an identity (no-op)
  DMA translation descriptor; no translation is required when addressing
  the SoC backplane.

Approved by:	adrian (mentor)
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D12582
2017-11-21 23:25:22 +00:00
Landon J. Fuller
caeff9a3c2 bhnd(4): implement MIPS and PCI(e) interrupt support
On BHND MIPS SoCs, this replaces the use of hard-coded MIPS IRQ#s in the
common bhnd(4) core drivers; we now register an INTRNG child PIC that
handles routing of backplane interrupt vectors via the MIPS core.

On BHND PCI devices, backplane interrupt vectors are now routed to the
PCI/PCIe host bridge core when bus_setup_intr() is called, where they are
dispatched by the PCI core via a host interrupt (e.g. INTx/MSI).

The bhndb(4) bridge driver tracks registered interrupt handlers for the
bridged bhnd(4) devices and manages backplane interrupt routing, while
delegating actual bus interrupt setup/teardown to the parent bus on behalf
of the bridged cores.

Approved by:	adrian (mentor, implicit)
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D12518
2017-11-21 23:15:20 +00:00
Landon J. Fuller
89294a783a bhnd: Add support for supplying bus I/O callbacks when initializing an EROM
parser.

This allows us to use the EROM parser API in cases where the standard bus
space I/O APIs are unsuitable. In particular, this will allow us to parse
the device enumeration table directly from bhndb(4) drivers, prior to
full attach and configuration of the bridge.

Approved by:	adrian (mentor)
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D12510
2017-09-27 19:48:34 +00:00
Landon J. Fuller
8e35bf8319 bhnd: Implement bhnd(4) platform device registration.
Add bhnd(4) API for explicitly registering BHND platform devices (ChipCommon,
PMU, NVRAM, etc) with the bus, rather than walking the newbus hierarchy to
discover platform devices. These devices are now also refcounted; attempting
to deregister an actively used platform device will return EBUSY.

This resolves a lock ordering incompatibility with bwn(4)'s firmware loading
threads; previously it was necessary to acquire Giant to protect newbus access
when locating and querying the NVRAM device.

Approved by:	adrian (mentor)
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D12392
2017-09-27 19:44:23 +00:00
Landon J. Fuller
f526d86d75 bhnd: Remove unsupported USB core IDs from the bhnd_usb device table.
This resolves a SoC reset triggered by attempting to attach to the
BCM5365's USB 1.1 controller.

Approved by:	adrian (mentor, implicit)
2017-09-06 23:43:20 +00:00
Ed Maste
53d534724a bhnd: initialize variable before use
Reported by:	Clang
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2017-08-30 17:39:51 +00:00
Michael Zhilin
97721228b8 [mips] [bhnd] Support of old PMU for BMIPS and siba SoC
- Fix typo of PLL Type 4
 - Don't panic of frequency getters

Submitted by:	Hiroki Mori <yamori813@yahoo.co.jp>
Differential Revision:	https://reviews.freebsd.org/D10967
2017-05-28 12:05:16 +00:00
Landon J. Fuller
26e4f22037 bhnd(4): Fix a SPROM identification regression introduced in r315866
In r315866, we introduced a direct read of the 8-bit sromrev field from the
memory mapped SPROM/OTP device. On OTP devices that require 16-bit access
alignment, this read fails, preventing identification of the SPROM layout.

So, let's perform an aligned read of the combined 16-bit sromrev/crc field
instead.

Approved by:	adrian (mentor, implicit)
2017-05-23 22:30:15 +00:00
Landon J. Fuller
eb23aa8008 Add support for dumping bcma/siba EROM tables to the console via a new
BHND_EROM_DUMP() method.

Dump the EROM tables to the coneole on mips/broadcom devices if bootverbose
is enabled; this functionality is primarily useful when debugging SoC EROM
parsing and device matching issues during early boot.

Reviewed by:	mizhka
Approved by:	adrian (mentor)
Sponsored by:	Plausible Labs
Differential Revision:	https://reviews.freebsd.org/D10122
2017-04-24 18:35:25 +00:00
Landon J. Fuller
b78f353f8a Drop unused/unnecessary return statement.
Reported by:	Coverity
CID:		1373118
Approved by:	adrian (mentor, implicit)
2017-04-24 18:09:52 +00:00
Landon J. Fuller
4cb7084e29 Add Northstar/BCM4706 core ID for ChipCommon.
Approved by:	adrian (mentor, implicit)
2017-03-23 22:14:08 +00:00
Landon J. Fuller
5658bc0a95 Add a workaround for the BCM4706's dangling core region EROM entries.
Approved by:	adrian (mentor, implicit)
2017-03-23 22:12:14 +00:00
Landon J. Fuller
591e79bc76 [mips/broadcom]: Early boot NVRAM support
Add support for early boot access to NVRAM variables, using a new
bhnd_nvram_data_getvar_direct() API to support zero-allocation direct
reading of NVRAM variables from a bhnd_nvram_io instance backed by the
CFE NVRAM device.

Approved by:	adrian (mentor)
Differential Revision:	https://reviews.freebsd.org/D9913
2017-03-23 19:29:12 +00:00
Landon J. Fuller
a668f3d89e Integrate BCM4706 PMU (rev6) support, derived from the ISC-licensed Broadcom
sbchipc.h and hndpmu.c sources included in the RT-N16 and later firmware
source drops.

Approved by:	adrian (mentor, implicit)
2017-03-20 19:27:35 +00:00
Michael Zhilin
4c0fdc5a3d [bhnd] fix mask for PMU control
This patch fixes typo which results in extra bits of PMU control register.

PR:     217782
Submitted by:	Svyatoslav <razmyslov at viva64.com>
Found by:	PVS-Studio
2017-03-15 18:57:18 +00:00
Marius Strobl
4874af73c1 - Allow different slicers for different flash types to be registered
with geom_flashmap(4) and teach it about MMC for slicing enhanced
  user data area partitions. The FDT slicer still is the default for
  CFI, NAND and SPI flash on FDT-enabled platforms.
- In addition to a device_t, also pass the name of the GEOM provider
  in question to the slicers as a single device may provide more than
  provider.
- Build a geom_flashmap.ko.
- Use MODULE_VERSION() so other modules can depend on geom_flashmap(4).
- Remove redundant/superfluous GEOM routines that either do nothing
  or provide/just call default GEOM (slice) functionality.
- Trim/adjust includes

Submitted by:	jhibbits (RouterBoard bits)
Reviewed by:	jhibbits
2017-02-22 10:21:39 +00:00