ARM: at91: pass along bootsource to netbooted barebox ...

ROM-Code passes boot source information in r4. First stage does likewise
when invoking second stage. When net booting second stage, r4 has no
definite value. Fix this and pass the original boot source along.

This gives us a valid $bootsource value in net booted barebox, which is
important, so the same environment is loaded.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: at91: sama5d2: read back memory size from DDRAM controller ...

We hard code memory size at three places:
 - In the configuration we use to initialize the DDRAM controller
 - In the minimal available size passed from PBL to barebox proper
 - In the device tree memory node override

Remove the two latter ones and replace them with code that reads the
size back from controller.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: at91: add helpers for chain-loading barebox from SD-card ...

With PBL FAT support implemented, provide an sama5d2_sdhci_start_image
helper that can be called from the PBL to chainload a barebox.bin file
from the first FAT partition.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: at91: add necessary Advanced Interrupt Controller configuration ...

Without reconfiguration of the AIC redirection, the OS interrupt
handling will misbehave later on. Add it to the SoC init.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: at91: add sama5d2 cache init ...

The L2 cache controller needs some initialization before use. Same goes
for the CAN SRAM, do so after the MMU setup.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: at91: sama5d2: add sama5d2 matrix configuration ...

Different peripherals, including the SDRAM, are unusable without prior
matrix configuration. Port over the necessary at91bootstrap parts for
sama5d2 use.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: at91: implement sama5d2 lowlevel init ...

Port over the low level initialization for sama5d2 SoCs from
at91bootstrap.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: at91: import low level DDRAMC initialization code from at91bootstrap ...

This commit imports DDRAMC initialization routines for use in PBL from
https://github.com/linux4sam/at91bootstrap/blob/v3.8.12/driver/ddramc.c

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: at91: import early_udelay from at91bootstrap ...

For use by the incoming at91bootstrap DDRAMC initialization code,
this commit provides an early_udelay function usable in PBL imported from
https://github.com/linux4sam/at91bootstrap/blob/v3.8.12/driver/at91_pit.c

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: at91: add support for SAM9 SoC reset ...

System reset wasn't supported on the sama5 so far.
Add a driver to remedy this.

Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: at91: import lowlevel clock initialization from at91bootstrap ...

For use by future at91 first stage bootloaders, this commit imports
https://github.com/linux4sam/at91bootstrap/blob/v3.8.12/driver/pmc.c

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: at91: build for all SoCs when AT91_MULTI_BOARDS is selected ...

With the addition of 15afd9d25 ("ARM: at91: Add initial support for the
EVB-KSZ9477 eval board"), we now have two multi-image capable boards
supported, but users still have to choose a specific SoC, so they can't
be selected at the same time.

Fix this, by restricting the menu to the non-multi-image configurations,
i.e. CONFIG_ARCH_* symbols become specific to non-multi-image.

The multi-image configurations on the other hand directly select the
CONFIG_SOC_* symbol they require. Existing CONFIG_ARCH_* usage is
adjusted to align with the new usage.

Eventually, we would want to have a at91_multi_defconfig along with
this, but for now leave existing configs as is.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: at91: separate restart handler registration into SoC specific code ...

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

ARM: at91: Add initial support for the EVB-KSZ9477 eval board ...

The EVB-KSZ9477 is an evaluation board for the KSZ9477 ethernet switch.
This board is equipped with a atsama5d3 SoC with 256MiB of SDRAM, 256MiB
of NAND flash and a SD card slot.

For now only second stage booting is supported with AT91bootstrap as
first stage loader.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

at91sam9263ek: enable DT support ...

Add at91sam9263ek.dts to build.
Include mmc1 in at91sam9263ek.dts, as mmc1 is what the evaluation
kit uses for the SD card.

Add DT specific of_init
Adjust build to drop non-DT files from mach-at91

RomBOOT
>AT91Bootstrap 3.0.1
patch-0.8 64MB Ram
Load from SD-Card
Loading from SD-Card
Open: u-boot.bin
Loading from SD-Card - Success

barebox 2017.12.0-00036-gda46de29e #23 Sun Dec 31 09:15:39 CET 2017

Board: Atmel at91sam9263ek
gpio-at91 fffff200.gpio: AT91 gpio driver registered
gpio-at91 fffff400.gpio: AT91 gpio driver registered
gpio-at91 fffff600.gpio: AT91 gpio driver registered
gpio-at91 fffff800.gpio: AT91 gpio driver registered
gpio-at91 fffffa00.gpio: AT91 gpio driver registered
pinctrl-at91 pinctrl.2: AT91 pinctrl registered
AT91: Detected soc type: at91sam9263
AT91: Detected soc subtype: Unknown
mdio_bus: miibus0: probed
macb fffbc000.ethernet: Cadence MACB at 0xfffbc000
at91_udc fff78000.gadget: at91_udc version 3 May 2006
atmel_mci fff80000.mmc: version: 0x210
atmel_mci fff80000.mmc: registered as fff80000.mmc
atmel_mci fff84000.mmc: version: 0x210
atmel_mci fff84000.mmc: registered as fff84000.mmc
malloc space: 0x239fab00 -> 0x23dfaaff (size 4 MiB)
barebox-environment environment.6: probe failed: No such device
environment load /dev/env0: No such file or directory
Maybe you have to create the partition.
running /env/bin/init...
\e[?25h
Hit any key to stop autoboot:    3
barebox@Atmel at91sam9263ek:/ iomem
0x00000000 - 0xffffffff (size 0x00000000) iomem
  0x00300000 - 0x00313fff (size 0x00014000) 300000.sram
  0x00500000 - 0x00503fff (size 0x00004000) 500000.sram
  0x00700000 - 0x00700fff (size 0x00001000) 700000.fb
  0x20000000 - 0x23ffffff (size 0x04000000) ram0
    0x239fab00 - 0x23dfaaff (size 0x00400000) malloc space
    0x23dfab00 - 0x23dfffe2 (size 0x000054e3) board data
    0x23e00000 - 0x23e53cc8 (size 0x00053cc9) barebox
    0x23e53cc9 - 0x23e6404f (size 0x00010387) barebox data
    0x23e64050 - 0x23e6754b (size 0x000034fc) bss
    0x23fe4000 - 0x23fe7fff (size 0x00004000) ttb
    0x23fe8000 - 0x23feffff (size 0x00008000) stack
  0xfff78000 - 0xfff7bfff (size 0x00004000) fff78000.gadget
  0xfff80000 - 0xfff805ff (size 0x00000600) fff80000.mmc
  0xfff84000 - 0xfff845ff (size 0x00000600) fff84000.mmc
  0xfff8c000 - 0xfff8c1ff (size 0x00000200) fff8c000.serial
  0xfffbc000 - 0xfffbc0ff (size 0x00000100) fffbc000.ethernet
  0xffffee00 - 0xffffefff (size 0x00000200) ffffee00.serial
  0xfffff200 - 0xfffff3ff (size 0x00000200) fffff200.gpio
  0xfffff400 - 0xfffff5ff (size 0x00000200) fffff400.gpio
  0xfffff600 - 0xfffff7ff (size 0x00000200) fffff600.gpio
  0xfffff800 - 0xfffff9ff (size 0x00000200) fffff800.gpio
  0xfffffa00 - 0xfffffbff (size 0x00000200) fffffa00.gpio
  0xfffffd30 - 0xfffffd3e (size 0x0000000f) fffffd30.timer
barebox@Atmel at91sam9263ek:/ devinfo
`-- global
`-- nv
`-- platform
   `-- mem0
      `-- 0x00000000-0x03ffffff (    64 MiB): /dev/ram0
   `-- 300000.sram
      `-- 0x00000000-0x00013fff (    80 KiB): /dev/sram0
   `-- 500000.sram
      `-- 0x00000000-0x00003fff (    16 KiB): /dev/sram1
   `-- ahb.0
      `-- apb.1
         `-- fffff000.interrupt-controller
         `-- fffffc00.pmc
         `-- ffffe200.ramc
         `-- ffffe400.smc
         `-- ffffe800.ramc
         `-- ffffea00.smc
         `-- ffffec00.matrix
         `-- fffffd30.timer
         `-- fff7c000.timer
         `-- fffffd00.rstc
         `-- fffffd10.shdwc
         `-- pinctrl.2
            `-- fffff200.gpio
            `-- fffff400.gpio
            `-- fffff600.gpio
            `-- fffff800.gpio
            `-- fffffa00.gpio
         `-- ffffee00.serial
            `-- cs0
               `-- 0x00000000-0xffffffffffffffff (   0 Bytes): /dev/cs0
         `-- fff8c000.serial
            `-- cs1
               `-- 0x00000000-0xffffffffffffffff (   0 Bytes): /dev/cs1
         `-- fffbc000.ethernet
            `-- miibus0
            `-- eth0
         `-- fff78000.gadget
            `-- usbgadget
         `-- fff80000.mmc
            `-- mci0
         `-- fff84000.mmc
            `-- mci1
         `-- fffffd40.watchdog
         `-- fffa4000.spi
         `-- fffac000.can
      `-- 700000.fb
      `-- a00000.ohci
      `-- 10000000.ebi
   `-- i2c-gpio-0.3
   `-- leds.4
   `-- gpio_keys.5
   `-- cs2
      `-- 0x00000000-0xffffffffffffffff (   0 Bytes): /dev/cs2
   `-- soc
   `-- mem1
      `-- 0x00000000-0xfffffffe (     4 GiB): /dev/mem
   `-- environment.6
`-- mdio_bus
`-- fs
   `-- ramfs0
   `-- devfs0
`-- net
`-- udc0
`-- fb0
   `-- 0x00000000-0x000257ff (   150 KiB): /dev/fb0
barebox@Atmel at91sam9263ek:/ drvinfo
Driver  Device(s)
--------------------
syscon
at91-pit
        fffffd30.timer
gpio-at91
        fffff200.gpio
        fffff400.gpio
        fffff600.gpio
        fffff800.gpio
        fffffa00.gpio
pinctrl-at91
        pinctrl.2
atmel_usart
        ffffee00.serial
        fff8c000.serial
ramfs
        ramfs0
devfs
        devfs0
fat
tftp
at91sam9-smc
Generic PHY
macb
        fffbc000.ethernet
atmel_nand
cfi_flash
at91_udc
        fff78000.gadget
atmel_mci
        fff80000.mmc
        fff84000.mmc
atmel_lcdfb
        700000.fb
gpio-leds
        leds.4
gpio_keys
        gpio_keys.5
mmio-sram
        300000.sram
        500000.sram
mem
        mem0
        mem1
barebox-environment

Use 'devinfo DEVICE' for more information
barebox@Atmel at91sam9263ek:/ gpioinfo

GPIOs 0-31, chip fffff200.gpio:
             dir val requested  label
  GPIO    0: unk  hi        false
  GPIO    1: unk  hi        false
  GPIO    2:  in  hi        false
  GPIO    3: unk  hi        false
  GPIO    4: unk  hi        false
  GPIO    5: unk  hi        false
  GPIO    6: unk  lo        false
  GPIO    7: unk  hi        false
  GPIO    8: unk  hi        false
  GPIO    9: unk  hi        false
  GPIO   10: unk  hi        false
  GPIO   11: unk  hi        false
  GPIO   12: unk  hi        false
  GPIO   13:  in  hi        false
  GPIO   14:  in  hi        false
  GPIO   15:  in  hi        false
  GPIO   16:  in  hi        false
  GPIO   17:  in  hi        false
  GPIO   18:  in  hi        false
  GPIO   19:  in  lo        false
  GPIO   20:  in  hi        false
  GPIO   21:  in  hi        false
  GPIO   22:  in  hi        false
  GPIO   23:  in  hi        false
  GPIO   24:  in  hi        false
  GPIO   25:  in  lo         true  udc_vbus
  GPIO   26: unk  hi        false
  GPIO   27: unk  hi        false
  GPIO   28: unk  hi        false
  GPIO   29: unk  hi        false
  GPIO   30:  in  lo        false
  GPIO   31:  in  hi        false

GPIOs 32-63, chip fffff400.gpio:
             dir val requested  label
  GPIO   32:  in  hi        false
  GPIO   33:  in  hi        false
  GPIO   34:  in  hi        false
  GPIO   35:  in  hi        false
  GPIO   36:  in  hi        false
  GPIO   37:  in  hi        false
  GPIO   38:  in  hi        false
  GPIO   39: out  hi         true  d3
  GPIO   40:  in  hi        false
  GPIO   41: unk  hi        false
  GPIO   42:  in  hi        false
  GPIO   43:  in  hi        false
  GPIO   44:  in  hi        false
  GPIO   45:  in  hi        false
  GPIO   46:  in  hi        false
  GPIO   47:  in  hi        false
  GPIO   48:  in  hi        false
  GPIO   49:  in  hi        false
  GPIO   50:  in  hi        false
  GPIO   51:  in  hi        false
  GPIO   52:  in  hi        false
  GPIO   53:  in  hi        false
  GPIO   54:  in  hi        false
  GPIO   55:  in  hi        false
  GPIO   56:  in  hi        false
  GPIO   57:  in  hi        false
  GPIO   58:  in  hi        false
  GPIO   59: out  lo   active low  PHY 50 MHz oscillator
  GPIO   60:  in  hi        false
  GPIO   61:  in  hi        false
  GPIO   62:  in  hi        false
  GPIO   63:  in  hi        false

GPIOs 64-95, chip fffff600.gpio:
             dir val requested  label
  GPIO   64:  in  hi        false
  GPIO   65: unk  hi        false
  GPIO   66: unk  hi        false
  GPIO   67: unk  hi        false
  GPIO   68:  in  hi         true  gpio_keys
  GPIO   69:  in  hi         true  gpio_keys
  GPIO   70: unk  lo        false
  GPIO   71: unk  lo        false
  GPIO   72: unk  lo        false
  GPIO   73: unk  lo        false
  GPIO   74: unk  lo        false
  GPIO   75: unk  lo        false
  GPIO   76: unk  lo        false
  GPIO   77:  in  hi        false
  GPIO   78: unk  lo        false
  GPIO   79: unk  lo        false
  GPIO   80: unk  lo        false
  GPIO   81: unk  lo        false
  GPIO   82: unk  lo        false
  GPIO   83: unk  lo        false
  GPIO   84:  in  hi        false
  GPIO   85:  in  hi        false
  GPIO   86: unk  lo        false
  GPIO   87: unk  lo        false
  GPIO   88: unk  lo        false
  GPIO   89: unk  lo        false
  GPIO   90: unk  lo        false
  GPIO   91: unk  lo        false
  GPIO   92:  in  hi        false
  GPIO   93:  in  hi         true  d2
  GPIO   94: unk  hi        false
  GPIO   95: unk  hi        false

GPIOs 96-127, chip fffff800.gpio:
             dir val requested  label
  GPIO   96:  in  hi        false
  GPIO   97:  in  hi        false
  GPIO   98:  in  hi        false
  GPIO   99:  in  hi        false
  GPIO  100:  in  hi        false
  GPIO  101:  in  hi        false
  GPIO  102:  in  hi        false
  GPIO  103:  in  hi        false
  GPIO  104:  in  hi        false
  GPIO  105:  in  hi        false
  GPIO  106:  in  hi        false
  GPIO  107:  in  hi        false
  GPIO  108: unk  lo        false
  GPIO  109: unk  lo        false
  GPIO  110: unk  lo        false
  GPIO  111:  in  hi        false
  GPIO  112: unk  lo        false
  GPIO  113: unk  hi        false
  GPIO  114: unk  hi        false
  GPIO  115: unk  lo        false
  GPIO  116: unk  hi        false
  GPIO  117: unk  hi        false
  GPIO  118: unk  hi        false
  GPIO  119: unk  hi        false
  GPIO  120: unk  lo        false
  GPIO  121: unk  hi        false
  GPIO  122: unk  hi        false
  GPIO  123: unk  lo        false
  GPIO  124: unk  hi        false
  GPIO  125: unk  hi        false
  GPIO  126: unk  hi        false
  GPIO  127: unk  hi        false

GPIOs 128-159, chip fffffa00.gpio:
             dir val requested  label
  GPIO  128:  in  hi        false
  GPIO  129:  in  hi        false
  GPIO  130:  in  hi        false
  GPIO  131:  in  hi        false
  GPIO  132:  in  hi        false
  GPIO  133:  in  hi        false
  GPIO  134:  in  hi        false
  GPIO  135:  in  hi        false
  GPIO  136:  in  hi        false
  GPIO  137:  in  hi        false
  GPIO  138:  in  hi        false
  GPIO  139:  in  hi        false
  GPIO  140:  in  hi        false
  GPIO  141:  in  hi        false
  GPIO  142:  in  hi        false
  GPIO  143:  in  hi        false
  GPIO  144:  in  hi        false
  GPIO  145:  in  hi        false
  GPIO  146:  in  lo         true  mci_cd
  GPIO  147:  in  hi        false
  GPIO  148:  in  hi        false
  GPIO  149: unk  lo        false
  GPIO  150:  in  hi        false
  GPIO  151: unk  lo        false
  GPIO  152: unk  lo        false
  GPIO  153: unk  lo        false
  GPIO  154: unk  lo        false
  GPIO  155: unk  lo        false
  GPIO  156: unk  lo        false
  GPIO  157: unk  lo        false
  GPIO  158: unk  hi        false
  GPIO  159:  in  hi        false
barebox@Atmel at91sam9263ek:/ clk_dump
slow_xtal (rate 32768, enabled)
    prog0 (rate 32768, enabled)
        pck0 (rate 32768, disabled)
    prog1 (rate 32768, enabled)
        pck1 (rate 32768, disabled)
    prog2 (rate 32768, enabled)
        pck2 (rate 32768, disabled)
    prog3 (rate 32768, enabled)
        pck3 (rate 32768, disabled)
main_xtal (rate 16367660, enabled)
    main_osc (rate 16367660, enabled)
        mainck (rate 16367660, enabled)
            pllbck (rate 98205960, enabled)
                usbck (rate 49102980, enabled)
                    uhpck (rate 49102980, disabled)
                    udpck (rate 49102980, disabled)
            pllack (rate 204595750, enabled)
                masterck (rate 102297875, enabled)
                    pioA_clk (rate 102297875, enabled)
                    pioB_clk (rate 102297875, enabled)
                    pioCDE_clk (rate 102297875, enabled)
                    usart0_clk (rate 102297875, enabled)
                    usart1_clk (rate 102297875, disabled)
                    usart2_clk (rate 102297875, disabled)
                    mci0_clk (rate 102297875, disabled)
                    mci1_clk (rate 102297875, disabled)
                    can_clk (rate 102297875, disabled)
                    twi0_clk (rate 102297875, disabled)
                    spi0_clk (rate 102297875, disabled)
                    spi1_clk (rate 102297875, disabled)
                    ssc0_clk (rate 102297875, disabled)
                    ssc1_clk (rate 102297875, disabled)
                    ac97_clk (rate 102297875, disabled)
                    tcb_clk (rate 102297875, disabled)
                    pwm_clk (rate 102297875, disabled)
                    macb0_clk (rate 102297875, enabled)
                    g2de_clk (rate 102297875, disabled)
                    udc_clk (rate 102297875, disabled)
                    isi_clk (rate 102297875, disabled)
                    lcd_clk (rate 102297875, enabled)
                    dma_clk (rate 102297875, disabled)
                    ohci_clk (rate 102297875, disabled)
barebox@Atmel at91sam9263ek:/ led
registered LEDs:
0 : name: d3         max_value: 1
1 : name: d2         max_value: 1
barebox@Atmel at91sam9263ek:/ led 1 1
barebox@Atmel at91sam9263ek:/ led 0 1

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arm: at91: move irq_fixup to header file ...

This allows at91_rtt_irq_fixup() to be used outside
of the mach-at91/ directory.
Adjust all call sites to include the at91_rtt header.

Deleting one .c file is another nice side effect of this move.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arm: at91: remove leftovers from moving reset code in mach-at91 ...

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

at91rm9200ek: move reset vector to board code ...

Include deletion of now unused at91rm9200_lowlevel_init.c
and related CONFIG symbols

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

at91sam9m10g45ek, at91sam9m10ihd, pm9g45: move reset vector to board code ...

These three board share the same at91sam9g45_lowlevel_init.c file.

Introduce lowlevel.c file for the boards that contains the reset vector.
Delete the now unused at91sam9g45_lowlevel_init.c file
Drop unused CONFIG symbols and Makefile references

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

at91sam9n12ek: move reset vector to board code ...

Delete the unused at91sam9n12_lowlevel_init.c
Create new lowlevel.c that contains the reset vector.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

sama5d{3, 4}{xek, xplained}: move reset vector to board code ...

Include deletion of now unused CONFIG symbols

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

at91: drop unused at91sam9261_lowlevel_init ...

All at91sam9261 based boards uses board specific
reset vectors so the mach-at91 provided version is
no longer in use.
Delete unused CONFIG symbols too.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arm: at91: drop unused at91sam9x5_lowlevel_init.c ...

After refactoring of how we select lowlevel_init
it was apparent that at91sam9x5_lowlevel_init.c was no
longer used.
Delete the file and the now unused CONFIG symbol and it uses

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arm: at91: refactor lowlevel_init selection ...

The aim with this conversion is to drop the dependency
where the mach-at91/ code call code in the boards file.
This dependency must be dropepd to enable multi-image builds.

The selection of lowlevel_init functions are pushed to
the individual boards.

Use AT91SAM926X_BOARD_INIT for the boards that share the
at91sam926x_board_init file, and push this to the
individual boards. To be used in follow-up patches

bootstrap is likewise pushed out to the individual boards.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

at91sam9x5ek: Convert to use DT clock tree ...

Convert board code to use clock tree form DT as well as converting UART,
GPIO and PIT devices to be instantiated from it (to make sure codebase
is still bootable).

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clk: at91: Port at91 DT clock code ...

Port at91 DT clock code from Linux 4.9-rc3.

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clocksource: at91: Move to 'drivers/clocksource' ...

Move PIT driver code to 'drivers/clocsource' and accomodate it by
adjusting Kconfig variables. Rename the file to 'timer-atmel-pit.c' to
re-align the driver with code in Linux kernel.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: at91: add sama5d4ek board support ...

Add Atmel sama5d4ek board support, which include following features:
  - NAND flash support
  - SPI flash support
  - MMC card support (MCI1)
  - LCD display support (with QT1070)
  - Ethernet support

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

pinctrl: at91: add pinctrl driver ...

This driver is based on mach-at91/gpio.c and linux pinctrl driver.
The driver contains the gpio and pinctrl parts (like in linux) because the two parts
share some structures and logics.

Signed-off-by: Raphaël Poggi <poggi.raph@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

at91: add irq fixup ...

Some of the irq can still be on after a reset or power on as the IP are
powered by the backup power. This could lead to an interrupt dead lock
when the kernel boot. So disable them before booting.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>