linux-toradex.git/drivers/soc/fsl, branch v4.9.75

arch/powerpc: Add CONFIG_FSL_DPAA to corenetXX_smp_defconfig

2016-09-25T07:39:01+00:00

Enable the drivers on the powerpc arch.

Signed-off-by: Roy Pledge 
Signed-off-by: Claudiu Manoil 
Signed-off-by: Scott Wood

soc/qman: Add self-test for QMan driver

2016-09-25T07:39:00+00:00

Add self tests for the DPAA 1.x Queue Manager driver. The tests
ensure that the driver can properly enqueue and dequeue to/from
frame queues using the QMan portal infrastructure.

Signed-off-by: Roy Pledge 
Signed-off-by: Claudiu Manoil 
Signed-off-by: Scott Wood

soc/bman: Add self-test for BMan driver

2016-09-25T07:38:59+00:00

Add a self test for the DPAA 1.x Buffer Manager driver. This
test ensures that the driver can properly acquire and release
buffers using the BMan portal infrastructure.

Signed-off-by: Roy Pledge 
Signed-off-by: Claudiu Manoil 
Signed-off-by: Scott Wood

soc/fsl: Introduce DPAA 1.x QMan device driver

2016-09-25T07:38:59+00:00

This driver enables the Freescale DPAA 1.x Queue Manager block.
QMan is a hardware accelerator that manages frame queues.  It allows
CPUs and other accelerators connected to the SoC datapath to enqueue
and dequeue ethernet frames, thus providing the infrastructure for
data exchange among CPUs and datapath accelerators.

Signed-off-by: Roy Pledge 
Signed-off-by: Claudiu Manoil 
Signed-off-by: Scott Wood

soc/fsl: Introduce DPAA 1.x BMan device driver

2016-09-25T07:38:58+00:00

This driver enables the Freescale DPAA 1.x Buffer Manager block.
BMan is a hardware accelerator that manages buffer pools.  It allows
CPUs and other accelerators connected to the SoC datapath to acquire
and release buffers during data processing.

Signed-off-by: Roy Pledge 
Signed-off-by: Claudiu Manoil 
Signed-off-by: Scott Wood

soc/fsl/qe: fix gpio save_regs functions

2016-09-25T07:38:56+00:00

of_mm_gpiochip_add_data() calls mm_gc->save_regs() before
setting the data. Therefore ->save_regs() cannot use
gpiochip_get_data()

An Oops is encountered without this fix.

fixes: 1e714e54b5ca5 ("powerpc: qe_lib-gpio: use gpiochip data pointer")
Signed-off-by: Christophe Leroy 
Cc: 
Reviewed-by: Linus Walleij 
Signed-off-by: Scott Wood

soc/fsl/qe: fix Oops on CPM1 (and likely CPM2)

2016-09-25T07:38:52+00:00

Commit 0e6e01ff694ee ("CPM/QE: use genalloc to manage CPM/QE muram")
has changed the way muram is managed.
genalloc uses kmalloc(), hence requires the SLAB to be up and running.

On powerpc 8xx, cpm_reset() is called early during startup.
cpm_reset() then calls cpm_muram_init() before SLAB is available,
hence the following Oops.

cpm_reset() cannot be called during initcalls because the CPM is
needed for console.

This patch removes the call to cpm_muram_init() from cpm_reset().
cpm_muram_init() will be called from a new function called cpm_init()
which is declared as subsys_initcall, unless cpm_muram_alloc() is
called earlier for the serial console in which case cpm_muram_init()
will be called from there.

The reason for calling it from two places is that some drivers
(e.g. i2c-cpm) need some of the initialisations done by
cpm_muram_init() but don't call cpm_muram_alloc(). The console
driver calls cpm_muram_alloc() but some platforms might not use
the CPM serial ports for console.

[    0.000000] Unable to handle kernel paging request for data at address 0x00000008
[    0.000000] Faulting instruction address: 0xc01acce0
[    0.000000] Oops: Kernel access of bad area, sig: 11 [#1]
[    0.000000] PREEMPT CMPC885
[    0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.14-g0886ed8 #5
[    0.000000] task: c05183e0 ti: c0536000 task.ti: c0536000
[    0.000000] NIP: c01acce0 LR: c0011068 CTR: 00000000
[    0.000000] REGS: c0537e50 TRAP: 0300   Not tainted (4.4.14-s3k-dev-g0886ed8-svn)
[    0.000000] MSR: 00001032   CR: 28044428  XER: 00000000
[    0.000000] DAR: 00000008 DSISR: c0000000
GPR00: c0011068 c0537f00 c05183e0 00000000 00009000 ffffffff 00000bc0 ffffffff
GPR08: ff003000 ff00b000 ff003bbf 00000000 22044422 100d43a8 00000000 07ff94e8
GPR16: 00000000 07bb5d70 00000000 07ff81f4 07ff81f4 07ff81f4 00000000 00000000
GPR24: 07ffb3a0 07fe7628 c0550000 c7ffa190 c0540000 ff003bbf 00000000 00000001
[    0.000000] NIP [c01acce0] gen_pool_add_virt+0x14/0xdc
[    0.000000] LR [c0011068] cpm_muram_init+0xd4/0x18c
[    0.000000] Call Trace:
[    0.000000] [c0537f00] [00000200] 0x200 (unreliable)
[    0.000000] [c0537f20] [c0011068] cpm_muram_init+0xd4/0x18c
[    0.000000] [c0537f70] [c0494684] cpm_reset+0xb4/0xc8
[    0.000000] [c0537f90] [c0494c64] cmpc885_setup_arch+0x10/0x30
[    0.000000] [c0537fa0] [c0493cd4] setup_arch+0x130/0x168
[    0.000000] [c0537fb0] [c04906bc] start_kernel+0x88/0x380
[    0.000000] [c0537ff0] [c0002224] start_here+0x38/0x98
[    0.000000] Instruction dump:
[    0.000000] 91430010 91430014 80010014 83e1000c 7c0803a6 38210010 4e800020 7c0802a6
[    0.000000] 9421ffe0 bf61000c 90010024 7c7e1b78 <80630008> 7c9c2378 7cc31c30 3863001f
[    0.000000] ---[ end trace dc8fa200cb88537f ]---

fixes: 0e6e01ff694ee ("CPM/QE: use genalloc to manage CPM/QE muram")
Cc: stable@vger.linux.org
Signed-off-by: Christophe Leroy 
[scottwood: Removed some string changes unrelated to bugfix]
Signed-off-by: Scott Wood

fsl/qe: use of_property_read_bool

2016-09-25T07:38:51+00:00

Use of_property_read_bool to check for the existence of a property.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// 
@@
expression e1,e2;
statement S2,S1;
@@
-       if (of_get_property(e1,e2,NULL))
+       if (of_property_read_bool(e1,e2))
        S1 else S2
// 

Signed-off-by: Julia Lawall 
Signed-off-by: Scott Wood

soc/fsl/qe: Use of_adress_to_resource() in get_qe_base()

2016-09-25T04:01:17+00:00

modify get_qe_base function with of_address_to_resource
instead of of_get_property and of_translate_address.

Signed-off-by: Zhao Qiang 
Signed-off-by: Scott Wood

soc/fsl/qe: Use resource_size

2016-09-25T03:46:55+00:00

Use the function resource_size instead of explicit computation.

Problem found using Coccinelle.

Signed-off-by: Vaishali Thakkar 
Signed-off-by: Scott Wood