atmel_mci: after a software timeout the IP need to be reset ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

atmel_mci: on version 0x0 we need to reset the IP at each request ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

atmel_mci: rwproof is only needed up to IP version 0x200 ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

atmel_mci: fix host init ...

disable interrupt and reset the IP at the probe
set timout at the host init

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

atmel_mci: version 0x5xx of the IP have a different clk div ...

so detect and support it

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

atmel_mci: detect IP version ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

atmel_mci: use linux regs define ...

to simplify sync and share code

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

atmel_mci: rename all function to start with atmci ...

to be consistent and have a unique naming convention
be in sync with the kernel too

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

atmel_mci: rename atmel_mci_readl/writel to atmci_readl/writel ...

to be consistent with the kernel
This also reduce the ligne length

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

atmel_mci: rename atmel_mci_host tp atmel_mci ...

to be consistent with the kernel

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

of: Fix of_find_node_by_path breakage ...

This patch fixes breakage of of_find_node_by_path when
node not found in tree. This fault is caused, for example,
when no aliases is present in dtb.

barebox@ConnectCore i.MX51:/ oftree -d /env/mm.dtb
/ {
        model = "Freescale i.MX51 CCMX51";
        compatible = "fsl,imx51-ccmx51", "fsl,imx51";
        chosen {
        };
        cpus {
                cpu@0 {
                        compatible = "arm,cortex-a8";
                };
        };
};
barebox@ConnectCore i.MX51:/ oftree -p /env/mm.dtb
unable to handle NULL pointer dereference at address 0x00000000
pc : [<97f1f3f0>]    lr : [<97f19438>]
sp : 95eff988  ip : 00000001  fp : 97f43080
r10: 00000000  r9 : 97f4304c  r8 : 00000000
r7 : 00000000  r6 : e3510034  r5 : 00000001  r4 : 95f0eb28
r3 : 97f43054  r2 : 00000000  r1 : e1a0000b  r0 : 00000000
Flags: nzCv  IRQs off  FIQs off  Mode SVC_32

no stack data available

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM v7: Fix register corruption in v7_mmu_cache_off ...

v7_mmu_cache_flush stores registers on the stack and restores
them afterwards. Additionally v7_mmu_cache_flush is called
from v7_mmu_cache_off *after* disabling the MMU. With this
the following can happen:

- v7_mmu_cache_off disables the MMU. From now on no new values
  go to the data cache.
- v7_mmu_cache_off calls v7_mmu_cache_flush which in turn puts
  registers on the stack. Due to the MMU being disabled they
  do not go into the data cache.
- In v7_mmu_cache_flush the memory the stack is pointing to is
  overwritten with the values currently being in the cache.
- v7_mmu_cache_flush restores the registers from the stack with
  values from the cache and not the memory where the values have
  previously been written to.

Fix this by storing the registers on the stack *before* we disable
the MMU and restore them after we have called v7_mmu_cache_flush.
This way v7_mmu_cache_flush still restores corrupt register values
for the case when the MMU has been disabled, but we will restore
correct values afterwards.

This has been first observed when switching to gcc-4.7.2 when compiling
in Thumb2 mode, but could explain earlier problems also. The result
here was that the register holding the kernel address in start_linux()
was corrupted so that the kernel could not be started.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ohci: only enable drivers if ohci is enabled ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ohci: make it depends on !MMU ...

the current mmu support is broken

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Makefile: move cmd_check_file_size to Makefile.lib ...

so we can use to check pbl

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM Ka-Ro TX25: fix compilation with external NAND boot enabled ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM Ka-Ro TX25: fix running in SDRAM test ...

The end of SDRAM is at 0x9fffffff, not at 0x8fffffff. This fixes starting
barebox when it is located in the second SDRAM bank.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM i.MX25: Add missing device registration for the iomux ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mtd-core: fix compiler warning ...

Got this compile warning if MTD_WRITE support isn't set.

drivers/mtd/core.c: In function 'mtd_ioctl':
drivers/mtd/core.c:117:26: warning: unused variable 'ei' [-Wunused-variable]

Add a #ifdef to declaration of variable 'ei' to solve it.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

graphic_utils/fb_open: fix fbsize ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'delivery/at91_fixes' of git://git.jcrosoft.org/barebox

qt1070: init default key code first ...

So the key code provided by platform_data are not overwrited

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

atmel_spi: fix spi cs gpio request loop ...

it's 0 to num_cs - 1

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

at91sam9g45: fix i2c typos ...

arch/arm/mach-at91/at91sam9g45_devices.c: In function 'at91_add_device_i2c':
arch/arm/mach-at91/at91sam9g45_devices.c:158:42: error: 'pdata_i2c' undeclared (first use in this function)
arch/arm/mach-at91/at91sam9g45_devices.c:158:42: note: each undeclared identifier is reported only once for each function it appears in
arch/arm/mach-at91/at91sam9g45_devices.c:163:8: error: expected ':' or '...' before ';' token
arch/arm/mach-at91/at91sam9g45_devices.c:166:8: error: expected ':' or '...' before ';' token

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

at91: sam9x5ek: use -EINVAL for invalid gpio on 1-wire ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

ARM panda: do not set gpio direction of heartbeat LED ...

We now have gpio_request. When we call gpio_direction_output before
registering a led_gpio the gpio will be implicitely requested by the
gpio core. gpio_request in the led core will then fail resulting in
an unregistered LED.
Fix this by removing the call to gpio_direction_output. The LED core
will do this anyway.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

led: test for led->set callback before calling it ...

Registering a LED can fail. If someone calls led_set for such
a LED no set function will be there. Fail gracefully in this
case.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arm-mmu: remove semicolon in arm mmu.c ...

Remove semicolon in PAGE_ALIGN macro.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

meminfo: fix display of allocated addresses ...

Fix display to stdout of allocated addresses.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

memory: fix size address calculation ...

Fix size address calculation.

Global variables from <asm/sections.h> which are defined
in linker script *.lds files for end addresses has already
a +1 calculation.

For example:
stext = 0x100 with a size about 0x50 will result a etext = 0x150.
In this case a correct size calculation is (etext - stext) = 0x50.

In function 'request_sdram_region' the end address will be
calculated with (start + size - 1) which result a correct
end address of 0x149 in this example.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>