Commit Graph

121 Commits

Author SHA1 Message Date
Ard Biesheuvel 8b9025345e ArmPlatformPkg/NorFlashDxe: use one GUID plus index to identify flash banks
Currently, each flash bank controlled by ArmPlatformPkg/NorFlashDxe
has its own VendorHw GUID, and instances of NorFlashPlatformLib
describe each bank to the driver, along with the GUID for each.

This works ok for bare metal platforms, but it would be useful for
virtual platforms if we could obtain this information from a
device tree, which would require us to invent GUIDs on the fly,
given that the 'cfi-flash' binding does not include a GUID.

So instead, let's switch to a single GUID for all flash banks,
and update the driver's device path handling to include an index
to identify each bank uniquely.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Thomas Abraham <thomas.abraham@arm.com>
2018-11-26 17:53:46 +01:00
Ard Biesheuvel 4ef1135839 ArmPlatformPkg/NorFlashDxe: prepare for devicepath format change
A subsequent patch will change the layout of devicepath nodes
produced by this driver. In preparation, make some tweaks to
the code to use a packed struct for the devicepath and to pass
the device index to NorFlashCreateInstance(). These are cosmetic
changes only, the resulting binaries should be identical.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Thomas Abraham <thomas.abraham@arm.com>
2018-11-26 17:53:42 +01:00
Girish Pathak 4257dfaa61 ArmPlatformPkg: Tidy Lcd code: Updated comments
There is no functional modification in this change
some comments are modified and a few new comments are added.
This is to prevent mixing formatting changes with functional
changes.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Girish Pathak <girish.pathak@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2018-04-23 12:00:23 +01:00
Girish Pathak b1b69d2606 ArmPlatformPkg: Tidy Lcd code: Coding standard
There is no functional modification in this change
As preparation for further work, the formatting is corrected to meet
the EDKII coding standard.
Of specific note, some invalid include guards were fixed.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Girish Pathak <girish.pathak@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2018-04-23 11:42:13 +01:00
Laszlo Ersek 96337c6dbb ArmPlatformPkg/NorFlashDxe: depend on gEfiCpuArchProtocolGuid
NorFlashFvbInitialize() calls gDS->SetMemorySpaceAttributes() to mark the
varstore flash region as uncached. This DXE service depends on the CPU
Architectural protocol, and the DXE core is allowed to return
EFI_NOT_AVAILABLE_YET if it hasn't dispatched ArmPkg/Drivers/CpuDxe
earlier. Make the dependency explicit.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Steve Capper <steve.capper@linaro.org>
Cc: Supreeth Venkatesh <Supreeth.Venkatesh@arm.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Tested-by: Steve Capper <steve.capper@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2018-04-12 21:24:37 +02:00
Laszlo Ersek 6281a2ed3b ArmPlatformPkg/NorFlashDxe: cue the variable driver with NvVarStoreFormatted
The BEFORE depex opcode that we currently use to force ourselves in front
of the variable driver cannot be combined with other depex opcodes.
Replace the depex with TRUE, and signal NvVarStoreFormattedLib through the
installation of "gEdkiiNvVarStoreFormattedGuid".

Platforms that rely on NorFlashDxe to format the variable store (as
opposed to formatting a variable store template through an FDF file, as
part of the build) should hook NvVarStoreFormattedLib into the variable
drivers they use, so that the latter await our cue.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Steve Capper <steve.capper@linaro.org>
Cc: Supreeth Venkatesh <Supreeth.Venkatesh@arm.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Tested-by: Steve Capper <steve.capper@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2018-04-12 21:24:34 +02:00
Laszlo Ersek 0f87c53d0d ArmPlatformPkg/NorFlashDxe: initialize varstore headers eagerly
The lazy initialization of the varstore FVB makes no longer sense at this
point:

- "mNorFlashInstanceTemplate.Initialize" is NULL;

- in NorFlashCreateInstance(), we only set Instance->Initialize to
  non-NULL -- namely NorFlashFvbInitialize() -- if the FVB stands for the
  variable store (see "ContainVariableStorage" / "SupportFvb");

- we call Instance->Initialize() from three places:

  - from NorFlashWriteSingleBlock(), which is too late for the variable
    read service ("variable write" depends on "variable read");

  - from InitializeFvAndVariableStoreHeaders(), but that is only reachable
    from NorFlashFvbInitialize(), i.e. recursively from
    Instance->Initialize() itself;

  - and from FvbRead(), which is never called by the variable driver, only
    by the FTW driver. However, the variable driver may read (not write)
    the memory-mapped varstore flash chip before the FTW driver is
    dispatched.

Therefore the lazy initialization is both superfluous and insufficient.
Initialize the varstore headers eagerly, before we install the FVB
protocol interface.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Steve Capper <steve.capper@linaro.org>
Cc: Supreeth Venkatesh <Supreeth.Venkatesh@arm.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Tested-by: Steve Capper <steve.capper@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2018-04-12 21:24:32 +02:00
Ard Biesheuvel ab3886f02d ArmPlatformPkg: remove old PL111/HdLcd driver code
Now that LcdGraphicsOutputDxe has been refactored, remove the old code
that is no longer used.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-12-12 17:40:16 +00:00
Ard Biesheuvel 2671d89890 ArmPlatformPkg: create hw-agnostic LcdGraphicsOutputDxe driver
Create a new LcdGraphicsOutputDxe driver from the existing sources that
takes its hardware abstractions from a LcdHwLib library instance rather
than from a .c file linked directly. All we need is a new .inf file, and
a minimal tweak to LcdGraphicsOutputDxe.h to reuse the LcdHwlib prototypes
rather than open code them.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Girish Pathak <girish.pathak@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
[ardb: add it to ArmPlatformPkg.dsc so we can build test it standalone]
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-12-12 17:40:16 +00:00
Ard Biesheuvel a8406340bd ArmPlatformPkg: remove unused SP804 driver and TimerLib implementation
None of the platforms we support use these so remove them.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-12-08 16:30:59 +00:00
Ard Biesheuvel 134f669b2a ArmPlatformPkg: remove unused ArmTrustZone driver
This driver is no longer used anywhere so remove it.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-12-08 16:30:55 +00:00
Ard Biesheuvel cbfe0ee492 ArmPlatformPkg: remove unused PL310 driver
This driver is not used by any platforms so remove it.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-12-08 16:30:51 +00:00
Ard Biesheuvel 1bf597d052 ArmPlatformPkg: remove PL34xDmc driver
Remove PL34xDmc driver which is not used by any platforms

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-12-08 16:30:48 +00:00
Ard Biesheuvel 582d5462b6 ArmPlatformPkg: remove unused PL35x driver
No platform uses this so remove it.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-12-08 16:30:44 +00:00
Ard Biesheuvel aa5eed375c ArmPlatformPkg: remove unused PL301Axi driver
No platforms use this driver so remove it.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-12-08 16:30:38 +00:00
Ard Biesheuvel eb618ba42f ArmPlatformPkg/LcdGraphicsOutputDxe: move headers into driver directory
The HdLcd.h and PL111Lcd.h header files are internal headers that should
not be used by other drivers. So move them from Include/Drivers into the
driver directory instead.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-12-08 16:30:32 +00:00
Ard Biesheuvel 1e6adaebdd ArmPlatformPkg: remove old PL011UartLib implementation
Remove the PL011UartLib implementation that has been superseded by
the one under Library/

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-12-08 16:30:22 +00:00
Ard Biesheuvel c1c72a46b9 ArmPlatformPkg/LcdGraphicsOutputDxe: remove VExpressPkg dependency
The two instantiations of LcdGraphicsOutputDxe reference VExpressPkg.dec
without actually relying on anything it defines. In preparation of
moving out VExpressPkg into edk2-platforms, drop these references so we
can keep LcdGraphicsOutputDxe in EDK2.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-12-04 22:01:02 +00:00
Ard Biesheuvel b9fddfb861 ArmPlatformPkg: move internal SP805 header into driver directory
Move the internal SP805 watchdog header file into the driver directory.
It shouldn't be referenced directly by other modules anyway.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-11-30 16:08:39 +00:00
Ard Biesheuvel c13f36654b ArmPlatformPkg: move internal PL061 header into driver directory
Move the internal PL061 GPIO header file into the driver directory.
It shouldn't be referenced directly by other modules anyway.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-11-30 16:08:36 +00:00
Jun Nie d4f6c35c84 ArmPlatformPkg: Support different PL011 reg offset
ZTE/SanChip version pl011 has different reg offset and bit offset
for some registers.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-07-17 17:27:27 +01:00
Laszlo Ersek ce69cc776c ArmPlatformPkg/NorFlashDxe: correct NumOfLba vararg type in EraseBlocks()
According to the PI spec, Volume 3,
EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL.EraseBlocks():

> The variable argument list is a list of tuples. Each tuple describes a
> range of LBAs to erase and consists of the following:
> * An EFI_LBA that indicates the starting LBA
> * A UINTN that indicates the number of blocks to erase

(NB, in edk2, EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL is a typedef to
EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL.)

In this driver, the NumOfLba local variable is defined with type UINTN,
but the TYPE argument passed to VA_ARG() is UINT32. Fix the mismatch.

In addition, update the DEBUG macro invocation where NumOfLba is formatted
with the %d conversion specifier: UINTN values should be converted to
UINT64 and printed with %Lu or %Lx for portability between 32-bit and
64-bit.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Reported-by: Jordan Justen <jordan.l.justen@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
2017-05-18 23:18:05 +02:00
Haojian Zhuang d176bb3c5c ArmPlatformPkg/PL061Gpio: fix the offset value in Get function
When call PL061GetPins() or PL061SetPins(), should use GPIO_PIN_MASK(offset)
as parameter, not offset.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2017-02-16 11:31:25 +00:00
Haojian Zhuang d164a0e31b ArmPlatformPkg/PL061: remove duplicated PL061_GPIO_DATA_REG
PL061_GPIO_DATA_REG offset is referenced in PL061EffectiveAddress ()
already. So remove the duplicated reference when invoke PL061GetPins ()
or PL061SetPins ().

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2017-02-16 11:26:46 +00:00
Bhupesh Sharma 465663e9f1 ArmPlatformPkg/TZASC: Allow specifying subregions to be disabled
ARM TZASC-380 IP provides a mechanism to split memory regions being
protected via it into eight equal-sized sub-regions. A bit-setting
allows the corresponding subregion to be disabled.

Several NXP/FSL SoCs support the TZASC-380 IP block and allow
the DDR connected via the TZASC to be partitioned into regions
having different security settings and also allow subregions
to be disabled.

This patch enables this support and can be used for SoCs which
support such a partition of DDR regions.

Details of the 'subregion_disable' register can be viewed here:
http://infocenter.arm.com/help/topic/com.arm.doc.ddi0431c/CHDIGDCI.html

Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@nxp.com>
[bhupesh.linux@gmail.com : Added gmail ID as NXP one is no longer valid]
Signed-off-by: Bhupesh Sharma <bhupesh.linux@gmail.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-01-26 14:31:37 +00:00
Achin Gupta 90d1f671cd ArmPlatformPkg/NorFlashDxe: Change Flash memory attributes before writes
In NorFlashFvbInitialize() if a valid Firmware Volume header is not found at the
start of NOR Flash, the Flash memory is written before it has been remapped with
EFI_MEMORY_UC attributes to allow write commands. Since the flash memory was
previously mapped with Normal and possibly cacheable memory attributes, the
Flash commands might never reach the device.

This patch fixes this issue by remapping the Flash memory region with correct
memory attributes before writing to it.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Achin Gupta <achin.gupta@arm.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2017-01-20 11:57:38 +00:00
Haojian Zhuang 1df2fe1433 ArmPlatformPkg/PL180MciDxe: update for identifying SD
When CMD6 & ACMD51 are added into identifying SD process, PL180
should also support CMD6 & ACMD51. Otherwise, it will hang when
system tries to read expected data.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Tested-by: Ryan Harkin <ryan.harkin@linaro.org>
2016-11-24 16:29:03 +00:00
Ard Biesheuvel 60d9f5f43b ArmPlatformPkg/NorFlashDxe: eliminate void pointer arithmetic
While most compilers happily allow arithmetic on void pointer,
the RVCT compiler does not, and throws the following warning for
NorFlashDxe:

  ArmPlatformPkg/Drivers/NorFlashDxe/NorFlashDxe.c(894,48) :
  error  #1254-D: arithmetic on pointer to void or function type

Since the expression in question involves a cast from UINTN to VOID*,
simply add some parentheses to eliminate this warning.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ryan Harkin <ryan.harkin@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2016-10-24 17:23:44 +01:00
Alexei 2d52a3a237 ArmPlatformPkg: Correct mendacious comments.
Correct some obviously incorrect comments that have invalid details for
the returned values.  (Copy /Paste problem?)
There are no functional changes in this commit.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Alexei Fedorov <alexei.fedorov@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2016-10-11 14:23:41 +01:00
Evan Lloyd 719a347c5d ArmPlatformPkg: Fix PL011 FIFO size test
This change updates PL011UartInitializePort to compare ReceiveFifoDepth
with the correct hardware FIFO size instead of the constant 32 used
previously.
This corrects a minor bug where a request for a fifo size > 15 and < 32
would not have been honoured on a system with a 16 byte FIFO.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2016-10-11 14:23:33 +01:00
Ard Biesheuvel bdb10148fc ArmPlatformPkg/NorFlashDxe: use strictly aligned CopyMem()
The UEFI spec stipulates that unaligned accesses should be enabled
on CPUs that support them, which means all of them, given that we
no longer support pre-v7 ARM cores, and the AARCH64 bindings mandate
support for unaligned accesses unconditionally.

This means that one should not assume that CopyMem () is safe to call
on regions that may be mapped using device attributes, which is the
case for the NOR flash. Since we have no control over the mappings when
running under the OS, and given that write accesses require device
mappings, we should not call CopyMem () in the read path either, but
use our own implementation that is guaranteed to take alignment into
account.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2016-09-09 13:48:49 +01:00
Ard Biesheuvel 3460c75dfe ArmPlatformPkg/NorFlashAuthenticatedDxe: remove this obsolete module
This module is now identical in functionality to NorFlashDxe, and is no
longer used, so remove it altogether.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2016-06-22 16:52:41 +02:00
Ard Biesheuvel 8753858f84 ArmPlatformPkg/NorFlashDxe: accept both non-secure and secure varstore GUIDs
Now that the generic Variable Runtime DXE code no longer distinguishes
between gEfiVariableGuid and gEfiAuthenticatedVariableGuid in the varstore
FV header, we can relax the check in the NOR flash driver to accept either
GUID regardless of whether we are running a secure boot capable build or not.

This also means we can always use gEfiAuthenticatedVariableGuid when we
encounter an empty NOR flash that needs to be initialized before use. So
remove the mNorFlashVariableGuid global from the shared code and from both
versions of NorFlashDxe.inf. This essentially collapses the two drivers into
a single one, which means we can remove NorFlashAuthenticatedDxe entirely
in a subsequent patch.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2016-06-22 16:52:40 +02:00
Evan Lloyd 16146b984d ArmPlatformPkg: Fix PL011 Glitches.
This change corrects 3 problems in the PL011 driver.
1. The TRM states "The UARTLCR_H, UARTIBRD, and UARTFBRD registers must
   not be changed:...when the UART is enabled"
2. The TRM (3.3.8) describes logic requiring the UART to be disabled and
   flushed before adjusting UARTCR.
3. Several redundant calls get made to PL011UartInitializePort, where
   the characteristics do not change, but updating the registers can
   cause glitches in the output stream.

The parameters are compared to the current state and no action taken if
no change of state is required.
Where an update is required, the specified logic is followed, and the
register updates only made when the UART is disabled.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Tested-by: Ryan Harkin <ryan.harkin@linaro.org>
Reviewed-by: Ryan Harkin <ryan.harkin@linaro.org>
2016-06-15 16:17:10 +02:00
Evan Lloyd f63005282c ArmPlatformPkg: Add support to configure PL011 UART clock
On some platforms the UART clock is not the same for all the serial
ports. The PL011 driver must be capable of handling serial ports with
different clock rates, so must not rely on a PCD for the clock rate.

This patch allows the UART clock rate to be passed as a parameter
to PL011UartInitializePort(), which is called from the serial port
library. This patch also contains the corresponding changes in the
serial port library.

The PCD in Drivers/PL011Uart is replaced by an extra parameter for
PL011UartInitializePort.  The PCD is moved to Library/PL011SerialPortLib
to supply the value to pass.

A corresponding patch to ArmVirtPkg is included in the same bundle to
align that with these changes.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Tested-by: Ryan Harkin <ryan.harkin@linaro.org>
2016-06-15 16:15:50 +02:00
Evan Lloyd ca0aad6982 ArmPlatformPkg: Remove double write in PL011
The variable LineControl was initialised to zero, then updated in a
condition.  This change converts that to a write in each branch of the
condition, removing the Write/Read/Modify/Write sequence.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Tested-by: Ryan Harkin <ryan.harkin@linaro.org>
Reviewed-by: Ryan Harkin <ryan.harkin@linaro.org>
2016-06-15 16:15:40 +02:00
Evan Lloyd aadc64e6a1 ArmPlatformPkg: Update PL011 Serial PCDs to Fixed PCDs
The PCDs used in the PL011 UART Driver and Serial Port Library are
inherently "fixed at build".  This change updates the source to use
Fixed PCDs for these values.  This improves clarity and efficiency.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Tested-by: Ryan Harkin <ryan.harkin@linaro.org>
Reviewed-by: Ryan Harkin <ryan.harkin@linaro.org>
2016-06-15 16:15:19 +02:00
Evan Lloyd 9f08a052a3 ArmPlatformPkg: Tidy PL011 UART driver
This cosmetic change only tidies things up in preparation for actual
updates. (This reflects responses to a previously submitted patch,
which has been split into several discrete changes.)
There are no functional changes in this commit.
Changes comprise:
  Minor corrections to comment typos.
  Minor formatting mods.
  Expansion of function comments.
  Remove OUT from UartBase parameter.
  Addition of #define for "magic mumbers".

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Reviewed-by: Ryan Harkin <ryan.harkin@linaro.org>
2016-06-15 16:15:08 +02:00
Haojian Zhuang 727894d5c9 ArmPlatformPkg: PL061: support multiple controller
Support multiple PL061 controllers. If platform gpio driver couldn't be
found, PL061 gpio driver will continue to load PcdPL061GpioBase as the
register base.

It could be compatible with the use case of current PL061 gpio driver.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2016-03-14 13:17:34 +00:00
Ryan Harkin d777442bb4 ArmPlatformPkg/PL180MciDxe: don't check ID_REG3
TC2 reads 0x02 for the PL180 ID3 register instead of 0x00 as defined in
the spec.

However, the spec [1] states that the contents of ID3 register represent
the "configuration option of the peripheral" and thus not part of the
Prime Cell identification.

For this patch, we drop checking the value in MCI_PERIPH_ID_REG3.

[1] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0172a/index.html

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ryan Harkin <ryan.harkin@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2016-03-01 18:06:24 +00:00
Ryan Harkin b5ffaf7d70 ArmPlatformPkg/PL180MciDxe: warn on probe fail
If the PL180 fails to probe, issue a warning on debug builds.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ryan Harkin <ryan.harkin@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2016-03-01 18:06:16 +00:00
Ryan Harkin cde024957b ArmPlatformPkg/PL180MciDxe: fix Depex for TC2
PL180 on TC2 has a dependency on gEfiCpuArchProtocolGuid.  Without
adding the dependency, TC2 will crash in the PL180 driver.

This problem has been present since d340ef7 when TC2 stopped booting.
However, it was masked by 300fc77 which prevented PL180 from running on
TC2 due to TC2 using a version on PL180 newer than that documented
publicly.

[1] https://github.com/tianocore/edk2/commit/d340ef7
2014-08-26
ArmPkg/ArmArchTimerLib: Remove non required [depex] and IoLib
[2] https://github.com/tianocore/edk2/commit/300fc77
2015-08-25
ArmPlatformPkg/PL180MciDxe: check PrimeCell ID before initializing

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ryan Harkin <ryan.harkin@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2016-03-01 18:04:36 +00:00
Leif Lindholm 328d8cfa62 ArmPlatformPkg: PL061 - rewrite the hardware interaction
The PL061 GPIO controller is a bit of an anachronism, and the existing
driver does nothing to hide this - leading to it being very tricky to
read.

Rewrite it to document (in comments and code) what is actually
happening, and fix some bugs in the process.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Ryan Harkin <ryan.harkin@linaro.org>
2016-02-26 16:50:27 +00:00
Leif Lindholm 41501f18fd ArmPlatformPkg: PL061 - drop pointless initialize function
PL061Initialize() did not actually do anything other than call
PL061Identify() - so cut out the middle man.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Ryan Harkin <ryan.harkin@linaro.org>
2016-02-26 16:50:22 +00:00
Leif Lindholm 2a77a37ea4 ArmPlatformPkg: PL061 - only initialize on protocol load
For whatever reason, every single operation on the PL061 looked for an
"Initialized" flag, and manually called the initialization function if
not set. Move this to a single call on protocol installation.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Ryan Harkin <ryan.harkin@linaro.org>
2016-02-26 16:50:17 +00:00
Leif Lindholm fe28290e97 ArmPlatformPkg: PL061 - reformat copyright statement.
The copyright statement in PL061Gpio.c would not fit on a normal terminal
screen. Break lines at <= 80 characters.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Ryan Harkin <ryan.harkin@linaro.org>
2016-02-26 16:50:09 +00:00
Evan Lloyd fcea0fcb23 ArmPlatformPkg: Rectify file modes
Problems have been encountered because some of the source files have
execute permission set.  This can cause git to report them as changed
when they are checked out onto a file system with inherited permissions.
This has been seen using Cygwin, MinGW and PowerShell Git.

This patch makes no change to source file content, and only aims to
correct the file modes/permissions.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19787 6f19259b-4bc3-4df7-8a09-765794883524
2016-02-02 11:42:31 +00:00
Laszlo Ersek 582085eb1f ArmPlatformPkg: NorFlashDxe: mellow DEBUG messages about flash reinit
The ValidateFvHeader() function checks several conditions against the
firmware volume header. Failure of the first of these checks, reported as
"No Firmware Volume header present", is a common situation for unformatted
flash images, especially when a new virtual machine is created.

Similarly, "Variable Store Guid non-compatible" is common when the
firmware binary is switched from Secure Boot-incapable to Secure
Boot-capable, or vice versa.

The only caller of ValidateFvHeader(), NorFlashFvbInitialize(), handles
all these mismatches by installing a new FVB header. It also emits
another, loud ERROR message (which is even less justified when it is
triggered by (BootMode == BOOT_WITH_DEFAULT_SETTINGS)).

Downgrade these messages from EFI_D_ERROR to EFI_D_INFO, so that they
don't clutter the debug output when the PcdDebugPrintErrorLevel mask only
enables EFI_D_ERROR (i.e., in a "silent" build).

These messages have annoyed / confused users; see for example:
- https://bugzilla.redhat.com/show_bug.cgi?id=1270279
- http://thread.gmane.org/gmane.comp.bios.edk2.devel/2772/focus=2869

Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Drew Jones <drjones@redhat.com>
Cc: Yehuda Yitschak <yehuday@marvell.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18618 6f19259b-4bc3-4df7-8a09-765794883524
2015-10-16 15:46:28 +00:00
Ard Biesheuvel 5fe9871620 ArmPlatformPkg/HdLcd: add missing LcdIdentify()
Commit r18308 ("ArmPlatformPkg/LcdGraphicsOutputDxe: check PrimeCell ID
before initializing") introduced a LcdIdentify() function to the PL111
LCD driver that makes it fail gracefully when executed on hardware that
does not have the IP. However, the LcdGraphicsOutputDxe driver is shared
with the HdLcd driver, which now fails to build due to the fact that it
has no LcdIdentity() function. So add a dummy implementation that always
returns EFI_SUCCESS.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18395 6f19259b-4bc3-4df7-8a09-765794883524
2015-09-04 10:02:43 +00:00
Ard Biesheuvel 9dc94d9891 ArmPlatformPkg/LcdGraphicsOutputDxe: check PrimeCell ID before initializing
To deal gracefully with the absence of the PL111 hardware on
the Foundation model, check the PrimeCell ID before proceeding
with the installation.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18308 6f19259b-4bc3-4df7-8a09-765794883524
2015-08-25 13:11:11 +00:00