In preparation of DM watchdog, move basic actions into drivers/watchdog
Signed-off-by: NChristophe Leroy <christophe.leroy@c-s.fr>

In preparation of migration to DM watchdog, clean up a bit.

The 8xx watchdog really is a HW watchdog, so declare it as is
then it goes through Kconfig

And the watchdog reset doesn't mind getting interrupted, so
no need to disable interrupts
Signed-off-by: NChristophe Leroy <christophe.leroy@c-s.fr>

reginfo is redundant with some of the commands in immap.c, so
move reginfo into that file and remove duplicated info.
Signed-off-by: NChristophe Leroy <christophe.leroy@c-s.fr>

Latest versions of u-boot have increased in size and require more
than the 256kb allocated to it.

The MCR3000 board is equipped with an AM29LV160DB boot flash which
is organised as follows:
- One 16kb block
- Two 8kb block
- One 32kb block
- Thirty one 64kb blocks

At the time being, u-boot is a single piece occupying the 256 first
kbytes, then the environment is stored in the following 64kb block

The environment being quite tiny, we save one 64kb block by embedding
the environment in the first 8kb block, hence allowing to increase
the monitor size to 320kb.
Signed-off-by: NChristophe Leroy <christophe.leroy@c-s.fr>

Commit 7653942b ("common/env_embedded.c: drop support for
CONFIG_SYS_USE_PPCENV") dropped the .ppcenv section which was
used in linking scripts to allow fine placement of embedded
environment sections.

This implies that GCC randomly places objects from env/embedded.o
and environment is not guaranteed to be located at the correct address:

04003df8 g     F .text  00000038 mii_init
04004000 g     O .text  00000004 env_size
04004004 g     O .text  00002000 environment
04006004 g     F .text  00000040 .hidden __lshrdi3

This patch restores this capability by allocating each object marked
with __UBOOT_ENV_SECTION__ into a different section. Hence
'environment' will be alone in .text.environment, allowing a
fine placement in u-boot.lds with:

		. = DEFINED(env_offset) ? env_offset : .;
		env/embedded.o			(.text.environment)

Fixes: 7653942b ("common/env_embedded.c: drop support for CONFIG_SYS_USE_PPCENV")
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: NChristophe Leroy <christophe.leroy@c-s.fr>

Some config is redundant with Kconfig. Fix it.
Also remove unused configs
Move SDRAM_MAX_SIZE in the only place it is used

include/environment.h already defines CONFIG_ENV_SIZE
from CONFIG_ENV_SECT_SIZE and defines CONFIG_ENV_ADDR as
(CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET)

remove BOOTARGS as bootargs is set by the different boot commands

Fix CONFIG_SYS_INIT_RAM_ADDR and CONFIG_SYS_INIT_RAM_SIZE to be in
line with CPM DPRAM organisation

Remove CONFIG_SYS_GBL_DATA_SIZE, CONFIG_SYS_GBL_DATA_OFFSET and
CONFIG_SYS_INIT_SP_OFFSET which are unused
Signed-off-by: NChristophe Leroy <christophe.leroy@c-s.fr>

Since commit 17cb4b8f ("mtd: nand: Add+use mtd_to/from_nand and
nand_get/set_controller_data"), mtd_to_nand() has to be used instead
of mtd->priv
Signed-off-by: NChristophe Leroy <christophe.leroy@c-s.fr>

u-boot requires some RAM at startup, to store global data structure.
RAM is also needed when we migrate to DM for some initial malloc

This patch implements the proper init of that RAM by calling
board_init_f_alloc_reserve() and board_init_f_init_reserve()
Signed-off-by: NChristophe Leroy <christophe.leroy@c-s.fr>

Some malloc memory is needed at startup for DM model.
Lets reorganise the use of the CPM dpram.

The MPC866/885 dpram, we have 8kbytes dual port RAM, which is usable as:
IMMR + 0x2000..0x2800: BD/Data/Microcode
IMMR + 0x2800..0x2e00: BD/Data
IMMR + 0x2e00..0x3800: BD/Data/Microcode
IMMR + 0x3800..0x3a00: BD/Data
IMMR + 0x3a00..0x3c00: BD/Data/Microcode
IMMR + 0x3c00..0x4000: Parameters for the Peripheral Controllers

Lets reallocate all BDs in the 3800..3a00 area and give the full
2800..2e00 for dynamic RAM allocation including global data

That way, the microcode areas remain available if needed one day.
Signed-off-by: NChristophe Leroy <christophe.leroy@c-s.fr>

include/commproc.h is dedicated to the 8xx, rename it cpm_8xx.h and
move it into arch/powerpc/include/asm
Signed-off-by: NChristophe Leroy <christophe.leroy@c-s.fr>

CONFIG_8xx doesn't mean much outside of arch/powerpc/
This patch renames it CONFIG_MPC8xx just like CONFIG_MPC85xx etc ...
It also renames 8xx_immap.h to immap_8xx.h to be consistent with
other file names.
Signed-off-by: NChristophe Leroy <christophe.leroy@c-s.fr>

get_immr() is always called with 0 as an argument, so it is useless.
Signed-off-by: NChristophe Leroy <christophe.leroy@c-s.fr>

SPRN_IMMR is defined regardless of the CPU. Therefore, there
is no point in enclosing get_immr() inside a #ifdef CONFIG_8xx

As it a static inline function, it will in any case only be
compiled in functons using it.
Signed-off-by: NChristophe Leroy <christophe.leroy@c-s.fr>

Avoid hardcoding the PVR values in C since they are defined
in processor.h

At the same time, remove those multiple PVR values for 8xx and
keep only one that we call PVR_8xx
Signed-off-by: NChristophe Leroy <christophe.leroy@c-s.fr>

In most places, immap local pointer is defined as
	immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
In a few places, it is defined as
	immap_t __iomem *immap = (immap_t __iomem *)(immr & 0xFFFF0000);

This patch replaces the few of the latest form by the other one.

The two are fully equivalent since SPRN_IMMR is set with CONFIG_SYS_IMMR
very early in start.S
Signed-off-by: NChristophe Leroy <christophe.leroy@c-s.fr>

commit 907208c4 ("powerpc: Partialy restore core of mpc8xx")
didn't bring back support for I2C on the mpc8xx
Signed-off-by: NChristophe Leroy <christophe.leroy@c-s.fr>

ATMEL_SPI is now fully converted to driver-model and
respective boards switch to DM_SPI as well,
so make default y for ARCH_AT91
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>
Acked-by: NWenyou Yang <wenyouya@gmail.com>

atmel_spi.h has register offsets, and atmel_spi_slave
structure, move it into .c file for better readability
and drop atmel_spi.h
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>
Acked-by: NWenyou Yang <wenyouya@gmail.com>

All board configs are now enabled DM_SPI for SPL and
U-Boot proper, so now its time to drop non-dm code.
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>
Acked-by: NWenyou Yang <wenyouya@gmail.com>

Enable SPL Driver model and FDT support for AT91 ma5d4evk boards.
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>

AT91 ma5d4evk board uses atmel spi driver, enable DM_SPI to
use dm functionality.

Kept few functions related to non-dm and gpio on board
files for reference and will be remove once code moved
to relevant drivers.
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>

Sync DTS from Linux and add FDT support for AT91 ma5d4evk board.

usb0, usb1, usb2 and hlcdc_pwm nodes removed, since there is no support it.
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>

Enable Driver model for AT91 ma5d4evk boards.
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>

AT91 Vinco board uses atmel spi driver, enable DM_SPI to
use dm functionality.

Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>

Sync DTS from Linux and add FDT support for AT91 vinco board.

usb0, usb1, and usb2 nodes removed, since there is no support it.

Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>

Enable Driver model for AT91 Vinco boards.

Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>

Enable DM_SPI for atmel SPI driver on taurus board.

Kept few functions related to non-dm and gpio on board
files for reference and will be remove once code moved
to relevant drivers.

Cc: Heiko Schocher <hs@denx.de>
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>

Now CONFIG_ATMEL_SPI is defined in Kconfig, so move the
same into defconfig file.

Cc: Simon Glass <sjg@chromium.org>
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>
Acked-by: NWenyou Yang <wenyouya@gmail.com>

Enable DM_SPI for atmel SPI driver on gurnard board.

Cc: Simon Glass <sjg@chromium.org>
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>

Few boards are configuring gpio directly from board instead
using drivers/gpio so add ifdef for DM_GPIO to compatible
for both the cases.
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>
Acked-by: NWenyou Yang <wenyouya@gmail.com>

Patch queue for rpi - 2018-04-06

Highlights this time around:

  - Support for new RPi3 B+ model
  - Fix for some SD cards on newer RPi firmware

In the model table for the new revision code encoding documented in
https://www.raspberrypi.org/documentation/hardware/raspberrypi/revision-codes/README.md
add the entries for old models with the new scheme and add CM3 which
only appears in the new scheme.

A device tree for CM3 is not currently upstreamed in linux.  When that
happens the name will likely have to be adjusted in the table.
Signed-off-by: NJonathan Gray <jsg@jsg.id.au>
Signed-off-by: NAlexander Graf <agraf@suse.de>

In raspberrypi-firmware 7fdcd00e00a42a1c91e8bd6f5eb8352fe9358557 and
later start.elf now sets the EMMC clock to 200 MHz.

According to Phil Elwell in
https://github.com/raspberrypi/firmware/issues/953
the SDHost controller shares the core/VPU clock and doesn't use
the EMMC clock.

Use the core clock id when determining the frequency to allow
U-Boot to work with recent versions of raspberrypi-firmware.
Otherwise U-Boot hangs at:

U-Boot 2018.03 (Mar 14 2018 - 20:36:00 +1100)

DRAM:  948 MiB
RPI 3 Model B (0xa02082)
MMC:   mmc@7e202000: 0, sdhci@7e300000: 1
Loading Environment from FAT...
Signed-off-by: NJonathan Gray <jsg@jsg.id.au>
Signed-off-by: NAlexander Graf <agraf@suse.de>

The new Raspberry Pi B 3+ has a lan78xx device attached to it. Let's add
driver support in U-Boot for it.
Signed-off-by: NPeter Robinson <pbrobinson@gmail.com>
Signed-off-by: NAlexander Graf <agraf@suse.de>

The Raspberr Pi Foundation released a new RPi3 version which we want
to detect as well, so we can enable ethernet on it and know the correct
device tree file name.

Add an identifier for it.
Signed-off-by: NAlexander Graf <agraf@suse.de>

The new Raspberry Pi B 3+ has a lan78xx device attached to it. Let's add
driver support in U-Boot for it.
Signed-off-by: NAlexander Graf <agraf@suse.de>

When we enable CONFIG_OF_BOARD on Raspberry Pis, we may end up without
serial console support in early boot. Hence we need to make the serial
port optional, otherwise we will never get to the point where serial
would be probed.
Signed-off-by: NAlexander Graf <agraf@suse.de>

Signed-off-by: NTom Rini <trini@konsulko.com>

Now with the MMC environment gone, we have enough space to accommodate
the Pine64 "non-plus" .dtb again.

This reverts commit 47952b8e.
Signed-off-by: NAndre Przywara <andre.przywara@arm.com>
Reviewed-by: NJagan Teki <jagan@openedev.com>

In January some commits were introduced to mitigate the U-Boot image
size issues we encountered on sunxi builds.
Now with the MMC environment removed we can bring them back, as we
practically don't have a size limit anymore.
Signed-off-by: NAndre Przywara <andre.przywara@arm.com>
Acked-by: NMaxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: NJagan Teki <jagan@openedev.com>