This adds multiple i2c channel support for I2C.
Signed-off-by: NAlim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: NRajeshwari Shinde <rajeshwari.s@samsung.com>
Acked-by: NSimon Glass <sjg@chromium.org>

This patch modifies the S3C I2C driver to suppport EXYNOS5.
The cahnges made to driver are as follows:
        - I2C base address is passed as a parameter to many
        functions to avoid multiple #ifdef
        - Channel initialisation is moved to a commom funation
        as it is required by i2c_init.
        - Hardcoding for I2CCON_ACKGEN removed.
        - Replaced printf with debug.
        - Checkpatch issues resolved.
        - Pinmux setting will be done in board/samsung/smdk5250/smdk5250.c
        to avoid repeated setting of gpio lines, as it have multi bus support.
Signed-off-by: NAlim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: NDoug Anderson <dianders@chromium.org>
Signed-off-by: NRajeshwari Shinde <rajeshwari.s@samsung.com>
Acked-by: NSimon Glass <sjg@chromium.org>

struct s3c24x0_i2c is being moved to common local header file so that
the same can be used by s3c series and exynos series SoCs.
Signed-off-by: NAlim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: NDoug Anderson <dianders@chromium.org>
Signed-off-by: NRajeshwari Shinde <rajeshwari.s@samsung.com>
Acked-by: NSimon Glass <sjg@chromium.org>

This patch adds pinmux code for I2C.
Signed-off-by: NRajeshwari Shinde <rajeshwari.s@samsung.com>
Acked-by: NSimon Glass <sjg@chromium.org>

This patch defined EXYNOS5_I2C_SPACING used to calculate I2C channel
base address.
Signed-off-by: NRajeshwari Shinde <rajeshwari.s@samsung.com>
Acked-by: NSimon Glass <sjg@chromium.org>

This patch adds the base address for I2C.
Signed-off-by: NAlim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: NRajeshwari Shinde <rajeshwari.s@samsung.com>
Acked-by: NSimon Glass <sjg@chromium.org>

This adds i2c clock information for EXYNOS5.
Signed-off-by: NAlim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: NDoug Anderson <dianders@chromium.org>
Signed-off-by: NRajeshwari Shinde <rajeshwari.s@samsung.com>
Acked-by: NSimon Glass <sjg@chromium.org>

This includes bus recovery support.
Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>
Acked-by: NJason Liu <r64343@freescale.com>

Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>

Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>

Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>

Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>

This include is not needed.
Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>
Acked-by: NJason Liu <r64343@freescale.com>

Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>

Add support for calling a function that will toggle the
SCL line to return the bus to idle condition.

The actual toggling function is added in a later patch.
Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>

Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>

This is prep work for CONFIG_I2C_MULTI_BUS.
Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>
Acked-by: NMarek Vasut <marex@denx.de>

Retry unexpected hardware errors. This
will not retry a received NAK.
Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>

No need to continue waiting if arbitration lost.
Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>
Acked-by: NMarek Vasut <marex@denx.de>

The i2c controller cannot be both master and slave in the
same transaction.
Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>

This helps in a multiple bus master environment which
is why I also added a wait for bus idle.
Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>

imx_reset is only referenced once so
move to that location.
Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>
Acked-by: NMarek Vasut <marex@denx.de>

imx_start is only referenced once so
move to that location.
Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>
Acked-by: NMarek Vasut <marex@denx.de>

wait_for_sr_state returns i2sr on success
so no need to read again.
Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>
Acked-by: NMarek Vasut <marex@denx.de>

Not using udelay gives a more accurate timeout. The current implementation of udelay
in imx-common does not seem to wait at all for a udelay(1).
Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>
Acked-by: NMarek Vasut <marex@denx.de>

----
V2: Added WATCHDOG_RESET as suggested by Marek Vasut
add error message when stop fails

mxc_i2c: code i2c_probe as a 0 length i2c_write
Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>
Acked-by: NMarek Vasut <marex@denx.de>
Acked-by: NStefano Babic <sbabic@denx.de>

Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>
Acked-by: NMarek Vasut <marex@denx.de>
Acked-by: NStefano Babic <sbabic@denx.de>

Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>

Initial code of i2c_read and i2c_write
is identical, move to subroutine.
Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>
Acked-by: NMarek Vasut <marex@denx.de>
Acked-by: NStefano Babic <sbabic@denx.de>

Let's clear the sr register before waiting for
bit to be set, instead of clearing it after
hardware sets it. No real operational difference here,
but allows combining of i2c_imx_trx_complete and
i2c_imx_bus_busy in later patches.
Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>
Acked-by: NMarek Vasut <marex@denx.de>

Use tx_byte function instead of having 3 copies
of the code.
Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>
Acked-by: NMarek Vasut <marex@denx.de>

This is always selected when CONFIG_I2C_MXC is
selected, so it adds no value.
Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>
Acked-by: NMarek Vasut <marex@denx.de>

Instead of clearing 2 bits, all the other
bits were set because '|=' was used instead
of '&='.
Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>
Acked-by: NMarek Vasut <marex@denx.de>
Acked-by: NStefano Babic <sbabic@denx.de>

If we switch to a different i2c bus in changing the mux config for the
i2c mux, we have to be sure to deblock the bus also before realocation.
Signed-off-by: NHolger Brunck <holger.brunck@keymile.com>
cc: Heiko Schocher <hs@denx.de>
cc: Valentin Longchamp <valentin.longchamp@keymile.com>

* 'next' of git://git.denx.de/u-boot:
  MPC8xx: Fixup warning in arch/powerpc/cpu/mpc8xx/cpu.c
  doc: cleanup - move board READMEs into respective board directories
  net: sh_eth: add support for SH7757's GETHER
  net: sh_eth: modify the definitions of regsiter
  net: sh_eth: add SH_ETH_TYPE_ condition
  net: sh_eth: clean up for the SH7757's code
  net: fec_mxc: Fix MDC for xMII
  net: fec_mxc: Fix setting of RCR for xMII
  net: nfs: make NFS_TIMEOUT configurable
  net: Inline the new eth_setenv_enetaddr_by_index function
  net: allow setting env enetaddr from net device setting
  net/designware: Consecutive writes to the same register to be avoided
  CACHE: net: asix: Fix asix driver to work with data cache on
  net: phy: micrel: make ksz9021 phy accessible
  net: abort network initialization if the PHY driver fails
  phylib: phy_startup() should return an error code on failure
  net: tftp: fix type of block arg to store_block
Signed-off-by: NWolfgang Denk <wd@denx.de>

Signed-off-by: NWolfgang Denk <wd@denx.de>

Hawkboard was using the wrong nand_read_page version for SPL image.
As a side effect, the u-boot image loaded by the SPL from nand
was getting corrupted.

Enable CONFIG_SYS_NAND_HW_ECC_OOBFIRST to select the correct nand_read_page
algorithm for SPL.
Signed-off-by: NLinu Cherian <linucherian@gmail.com>
Acked-by: NSughosh Ganu <urwithsughosh@gmail.com>
Acked-by: NTom Rini <trini@ti.com>

* 'master' of git://git.denx.de/u-boot-mips:
  MIPS: fix renaming of inca-swap-bytes to xway-swap-bytes
Signed-off-by: NWolfgang Denk <wd@denx.de>

cpu.c: In function ‘check_CPU’:
cpu.c:256:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
Signed-off-by: NMarek Vasut <marex@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Subject slightly changed.
Signed-off-by: NWolfgang Denk <wd@denx.de>

Tested on TQM855MDCBAB7-T66.102 (MPC855T at 66 MHz) and
TQM860LDB0A3-T50.202 (MPC860T at 50MHz).
Tested-by: NWolfgang Denk <wd@denx.de>
Acked-by: NWolfgang Denk <wd@denx.de>

make would spit out a message like

	Generating /tmp/build/include/generated/asm-offsets.h

even when running with option "-s".  Fix this.
Signed-off-by: NWolfgang Denk <wd@denx.de>

Also drop a few files referring to no longer / not yet supported
boards.
Signed-off-by: NWolfgang Denk <wd@denx.de>
Cc: Prafulla Wadaskar <prafulla@marvell.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Kim Phillips <kim.phillips@freescale.com>
Cc: Andy Fleming <afleming@gmail.com>
Cc: Jason Jin <jason.jin@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Acked-by: NStefano Babic <sbabic@denx.de>
Acked-by: NDaniel Schwierzeck <daniel.schwierzeck@googlemail.com>