powerpc: Extract EPAPR_MAGIC constants into processor.h

By extracting these defines into a header, they can be re-used by other
C sources as well. This will be done by the SPL framework OS boot
support.

Signed-off-by: Stefan Roese <sr@denx.de>
SPL: Port SPL framework to powerpc

This patch enables the SPL framework to be used on powerpc platforms
and not only ARM.

timer_init() does not exist on PPC systems. The timer (decrementer) is
initialized and enabled in interrupt_init() here. And currently
interrupt_init() is called after relocation to SDRAM. Since the only
powerpc SPL implementation (a3m071) doesn't need a timer, let's remove
this timer_init() call for PPC systems.

Signed-off-by: Stefan Roese <sr@denx.de>
env: Enable getenv_f() for SPL_BUILD

With this patch, getenv_f() can be included easily into the SPL
binary. With this, SPL boards can now use getenv_f() to read
environment variables (e.g. to detect if the OS or U-Boot shall
be executed).

In the approach this is done for env stored in NOR flash, as this
will be used by an upcoming MPC5200 board port.

Signed-off-by: Stefan Roese <sr@denx.de>
mpc5200: Add SPL support

This patch adds SPL booting support (NOR flash) for the
MPC5200 platforms.

Signed-off-by: Stefan Roese <sr@denx.de>
mpc5200: Add a3m071 board support

This patch adds support for the a3m071 board based on the
MPC5200.

Signed-off-by: Stefan Roese <sr@denx.de>
Makefile: Add possibility to set entry-point for u-boot.img

This patch enabled boards using the SPL framework to set
an entry point in the U-Boot mkimage image "u-boot.img".
Until now the entry point in the header has been set to 0.
By setting CONFIG_SYS_UBOOT_START in the board header, boards
can override this default location.

This will be used by the upcoming a3m071 MPC5200 board port.

Signed-off-by: Stefan Roese <sr@denx.de>
Makefile: Add target for combined spl/u-boot.bin & u-boot.img

This new make target "u-boot-img.bin" consists of the U-Boot
SPL image with the real, full-blown U-Boot image directly
attached to it. The full-blown U-Boot image has the mkimage
header included, with its load-address and entry-point.

This will be used by the upcoming a3m071 MPC5200 board port.

Signed-off-by: Stefan Roese <sr@denx.de>
4xx: Fix PCI memory mapping on CPCI405 boards

This patch fixes an issue with overlapping PCI regions
on boards with more than 64MB RAM.

Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu>
Signed-off-by: Stefan Roese <sr@denx.de>
.gitignore: update path for generated u-boot.lst

Signed-off-by: Vincent Stehlé <v-stehle@ti.com>
ARM: cache: introduce weak arm_setup_identity_mapping

Separate the MMU identity mapping for ARM in a weak function, to allow
redefinition with platform specific function.

This is motivated by the need to unmap the region near address zero on HS OMAP
devices, to avoid speculative accesses. Accessing this region causes security
violations, which we want to avoid.

Signed-off-by: Vincent Stehlé <v-stehle@ti.com>
ARM: OMAP5: redefine arm_setup_identity_mapping

We introduce an OMAP5 specific version of arm_setup_identity_mapping(), which
makes the first page of the identity mapping invalid.

We want to unmap the region near address zero on HS OMAP devices, to avoid
speculative accesses. Accessing this region causes security violations, which
we want to avoid.

Signed-off-by: Vincent Stehlé <v-stehle@ti.com>
Hack! Print reloc_off for debug

Signed-off-by: Vincent Stehlé <v-stehle@ti.com>
omap24xx_i2c: Handle wait_for_bb error

We add a return code to wait_for_bb() to be able to report errors to the
callers properly. We in turn handle this new error code in i2c_read, i2c_write
and i2c_probe.

Signed-off-by: Vincent Stehlé <v-stehle@ti.com>
power: twl6035: complain on LDO9 error

We handle i2c_write return code and complain in case of error. We propagate the
error, too, to allow better handling at the upper level in the future.

Signed-off-by: Vincent Stehlé <v-stehle@ti.com>
omap24xx_i2c: Handle OMAP5 like OMAP2,3,4

OMAP5 has 8b i2c data register field, like OMAP2, 3 and 4. Handle in the same
way. This fixes the following error on OMAP5:

  OMAP5430 EVM # mmc rescan
  timed out in wait_for_bb: I2C_STAT=1410
  twl6035: could not turn on LDO9.

Signed-off-by: Vincent Stehlé <v-stehle@ti.com>
omap5: mux: Mux gpio8_234 pin to MSECURE mode.

This is required for enabling the RTC functionality
on GP devices.

Signed-off-by: J Keerthy <j-keerthy@ti.com>
OMAP5: trim DDR i/o for 4 lots only

Only 4 lots missed the h/w production trim on OMAP5. Trace them through
CONTROL_DIE_ID_1 and apply DDR i/o trim values, but only for those. Otherwise,
leave the trimming values unchanged.

Signed-off-by: Vincent Stehlé <v-stehle@ti.com>
Hack! Enable all clocks

Prevents Linaro kernel v3.4.10+ to complain about lots of clocks when booting
on PandaBoard 5.

Signed-off-by: Vincent Stehlé <v-stehle@ti.com>
Hack! Grab USB EHCI bits from old, working u-boot OMAP5

This "repairs" USB with Linaro kernel v3.4.10+ on PandaBoard 5.

Signed-off-by: Vincent Stehlé <v-stehle@ti.com>
Hack! Disable ulpi_reset

Fixes link issue.

Signed-off-by: Vincent Stehlé <v-stehle@ti.com>