Add support for the MPC8536 process and MPC8536DS reference board. The
MPC8536 is an e500v2 based SoC which eTSEC, USB, SATA, PCI, and PCIe.
The USB and SATA IP blocks are similiar to those on the PQ2 Pro SoCs and
thus use the same drivers.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
udbg_putc is a *function pointer* that is initialized during
udbg_init_cpm. It might not be initialized properly when called from
udbg_putc_cpm(), so (recursively) call udbg_putc_cpm() directly.
Signed-off-by: Nye Liu <nyet@mrv.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Fix for the following compiler warnings:
CC arch/powerpc/sysdev/bestcomm/bestcomm.o
arch/powerpc/sysdev/bestcomm/bestcomm.c: In function 'mpc52xx_bcom_probe':
arch/powerpc/sysdev/bestcomm/bestcomm.c:446:
warning: format '%08lx' expects type 'long unsigned int',
but argument 2 has type 'phys_addr_t'
CC arch/powerpc/sysdev/bestcomm/sram.o
arch/powerpc/sysdev/bestcomm/sram.c: In function 'bcom_sram_init':
arch/powerpc/sysdev/bestcomm/sram.c:89:
warning: format '%08lx' expects type 'long unsigned int',
but argument 3 has type 'phys_addr_t'
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Simplify the interface for setting up bestcomm DMA to PSCs by adding
some helper functions. The helper function sets the correct values
for the initator and ipr values in PSC DMA tasks based on the PSC
number.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Convert i2c-mpc to an of_platform driver. Utilize the code in
drivers/of-i2c.c to make i2c modules dynamically loadable by the
device tree.
Signed-off-by: Jon Smirl <jonsmirl@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This converts ppc to use the new helpers for smp_call_function() and
friends, and adds support for smp_call_function_single().
ppc loses the timeout functionality of smp_call_function_mask() with
this change, as the generic code does not provide that.
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
It was discussed that global arch_initcall() is preferred way to probe
QE GPIOs, so let's use it.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
The 440EPx/GRx chips don't support PCI MRM commands. Drivers determine this
by looking for a zero value in the PCI cache line size register. However,
some drivers write to this register upon initialization. This can cause
MRMs to be used on these chips, which may cause deadlocks on PLB4.
The workaround implemented here introduces a new indirect_type flag, called
PPC_INDIRECT_TYPE_BROKEN_MRM. This is set in the pci_controller structure in
the pci fixup function for 4xx PCI bridges by determining if the bridge is
compatible with 440EPx/GRx. The flag is checked in the indirect_write_config
function, and forces any writes to the PCI_CACHE_LINE_SIZE register to be
zero, which will disable MRMs for these chips.
A similar workaround has been tested by AMCC on various PCI cards, such as
the Silicon Image ATA card and Intel E1000 GIGE card. Hangs were seen with
the Silicon Image card, and MRMs were seen on the bus with a PCI analyzer.
With the workaround in place, the card functioned properly and only Memory
Reads were seen on the bus with the analyzer.
Acked-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
This patch fixes following section mismatch:
WARNING: arch/powerpc/sysdev/built-in.o(.text+0x11d8): Section mismatch in
reference from the function qe_reset() to the function
.init.text:cpm_muram_init()
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This patch add a check to the PPC4xx PCIe driver to detect if the port
is disabled via the device-tree. This is needed for the AMCC Canyonlands
board which has an option to either select 2 PCIe ports or 1 PCIe port
and one SATA port. The SATA port and the 1st PCIe port pins are multiplexed
so we can't start both drivers.
Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
This is very trivial patch. We're transitioning to the cpm_muram_*
calls. That's it.
Less trivial changes:
- BD_SC_* defines were defined in the cpm.h and qe.h, so to avoid redefines
we remove BD_SC from the qe.h and use cpm.h along with cpm_muram_*
prototypes;
- qe_muram_dump was unused and thus removed;
- added some code to the cpm_common.c to support legacy QE bindings
(data-only node name).
- For convenience, define qe_* calls to cpm_*. So drivers need not to be
changed.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
- split and export __par_io_config_pin() out of par_io_config_pin(), so we
could use the prefixed version with GPIO LIB API;
- rename struct port_regs to qe_pio_regs, and place it into qe.h;
- rename #define NUM_OF_PINS to QE_PIO_PINS, and place it into qe.h.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-By: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This patch adds a function to the qe_lib to setup QE USB clocks routing.
To setup clocks safely, cmxgcr register needs locking, so I just reused
ucc_lock since it was used only to protect cmxgcr.
The idea behind placing clocks routing functions into the qe_lib is that
later we'll hopefully switch to the generic Linux Clock API, thus, for
example, FHCI driver may be used for QE and CPM chips without nasty #ifdefs.
This patch also fixes QE_USB_RESTART_TX command definition in the qe.h.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-By: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
GTM stands for General-purpose Timers Module and able to generate
timer{1,2,3,4} interrupts. These timers are used by the drivers that
need time precise interrupts (like for USB transactions scheduling for
the Freescale USB Host controller as found in some QE and CPM chips),
or these timers could be used as wakeup events from the CPU deep-sleep
mode.
Things unimplemented:
1. Cascaded (32 bit) timers (1-2, 3-4).
This is straightforward to implement when needed, two timers should
be marked as "requested" and configured as appropriate.
2. Super-cascaded (64 bit) timers (1-2-3-4).
This is also straightforward to implement when needed, all timers
should be marked as "requested" and configured as appropriate.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
When I changed irq_alloc_host() to take an of_node
(52964f87c6: "Add an optional
device_node pointer to the irq_host"), I botched the reference
counting semantics.
Stephen pointed out that it's irq_alloc_host()'s business if
it needs to take an additional reference to the device_node,
the caller shouldn't need to care.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
If we do the call to of_address_to_resource() first, then we don't
need to worry about freeing the irq_host (which the code doesn't do
currently anyway).
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
If we do the call to of_address_to_resource() first, then we don't
need to worry about freeing the irq_host (which the code doesn't do
currently anyway).
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This fixes the following warning, introduced by commit
475ca391b4 (mpic: Deal with bogus NIRQ
in Feature Reporting Register):
CC arch/powerpc/sysdev/mpic.o
arch/powerpc/sysdev/mpic.c: In function 'mpic_alloc':
arch/powerpc/sysdev/mpic.c:1146: warning: suggest explicit braces to avoid ambiguous 'else'
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Currently, fsl_i2c_of_init() uses the order of the I2C adapter nodes in the
device tree to enumerate the I2C adapters. Instead, let's check for the
cell-index property and use it if it exists.
This is handy for device drivers that need to identify the I2C adapters by
specific numbers. The Freescale MPC8610 ASoC V2 sound drivers are an example.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
