Commit graph

119 commits

Author SHA1 Message Date
Patil, Rachna
498cbdfe62 ARM: AM33XX: Add AM33XX I2C driver support
1. Compliant with Philips I2C specification version 2.1
2. Supports upto 100Kbps in standard mode

Signed-off-by: Chandan Nath <chandan.nath@ti.com>
Signed-off-by: Patil, Rachna <rachna@ti.com>
2012-01-23 11:57:31 +01:00
Patil, Rachna
2faa76196a ARM: I2C: I2C Multi byte address support
Existing OMAP I2C driver does not support address
length greater than one. Hence this patch is to
add support for 2 byte address read/write.

Signed-off-by: Philip, Avinash <avinashphilip@ti.com>
Signed-off-by: Hebbar, Gururaja <gururaja.hebbar@ti.com>
Signed-off-by: Patil, Rachna <rachna@ti.com>
2012-01-23 11:57:31 +01:00
Andreas Müller
0b620ec97e drivers/i2c/omap24xx_i2c.c: move all local variables to SRAM
At old overo boards TWL4030 RTC irq is connected to gpio112. Unfortunately
this pin is also used for revision detection. Therefore we need to send
shut-up to TWL4030 to avoid reading wrong revision. In SPL this must
be done before SDRAM is set up because the type of SDRAM is revision dependent.
By this patch it is ensured that all variables used by omap24xx_i2c.c are
located in SRAM.

Signed-off-by: Andreas Müller <schnitzeltony@gmx.de>
Acked-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Tom Rini <trini@ti.com>
2012-01-16 08:40:12 +01:00
Andreas Müller
49e9b4bd9b drivers/i2c/omap24xx_i2c.c: replace printf with one argument by puts
Signed-off-by: Andreas Müller <schnitzeltony@gmx.de>
Acked-by: Heiko Schocher <hs@denx.de>
2012-01-16 08:40:12 +01:00
Anatolij Gustschin
bd0f5ca806 drivers/i2c/davinci_i2c.c: Fix GCC 4.6 warning
Fix:
davinci_i2c.c: In function 'flush_rx':
davinci_i2c.c:81:6: warning: variable 'dummy' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Acked-by: Heiko Schocher <hs@denx.de>
2011-11-23 21:22:39 +01:00
Nobuhiro Iwamatsu
3dab3e0e67 i2c: sh: Add support I2C for Renesas SH
This supports I2C of Renesas SH.
I tested on SH7724.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
CC: Heiko Schocher <hs@denx.de>
2011-11-23 21:22:26 +01:00
Wolfgang Denk
0c2dd9a05b Merge branch 'master' of git://git.denx.de/u-boot-arm
* 'master' of git://git.denx.de/u-boot-arm:
  arm, davinci: add DAVINCI_MMC_CLKID
  arm, davinci_emac: fix driver bug if more then 3 PHYs are detected
  arm, davinci: da850/dm365 lowlevel cleanup
  omap5: Add omap5_evm board build support.
  omap4/5: Add support for booting with CH.
  omap5: emif: Add emif/ddr configurations required for omap5 evm
  omap5: clocks: Add clocks support for omap5 platform.
  omap5: Add minimal support for omap5430.
  omap: Checkpatch fixes
  omap4: make omap4 code common for future reuse
  GCC4.6: Squash warnings in onenand_base.c
  GCC4.6: Fix common/usb.c on xscale
  OneNAND: Add simple OneNAND SPL
  PXA: vpac270: Enable the new generic MMC driver
  PXA: Cleanup serial_pxa
  PXA: Drop csb226 and innokom boards (unmaintained)
  m28evk: Fix comment about the number of RAM banks
  mx31: Fix checkpatch warnings in generic.c
  mx31: Use proper IO accessor for GPR register
  mx31: Remove duplicate definition for GPR register
  qong: Use generic function for configuring GPR register
  M28EVK: Enable USB HOST support
  iMX28: Add USB HOST driver
  iMX28: Add USB and USB PHY register definitions
  M28: Add memory detection into SPL
  iMX28: Fix ARM vector handling
  M28: Add doc/README.m28 documentation
  M28: Add MMC SPL
  iMX28: Add support for DENX M28EVK board
  iMX28: Add u-boot.sb target to Makefile
  iMX28: Add image header generator tool
  iMX28: Add driver for internal RTC
  iMX28: Add GPMI NAND driver
  iMX28: Add APBH DMA driver
  iMX28: Add SPI driver
  iMX28: Add GPIO control
  iMX28: Add I2C bus driver
  iMX28: Add PINMUX control
  FEC: Add support for iMX28 quirks
  iMX28: Add SSP MMC driver
  iMX28: Initial support for iMX28 CPU
  MX25: zmx25: GCC4.6 fix build warnings
  da850: add new config file for AM18xx
  BeagleBoard: config: Switch to ttyO2
  OMAP3: Change omap3_evm maintainer
  devkit8000: Fix NAND SPL on boards with 256MB NAND
  integrator: enable Vpp and disable flash protection
  integrator: add system controller header
  integrator: make flash writeable on boot
  integrator: use io-accessors for board init
  integrator: move text offset to config
  integrator: pass configs for core modules
  ARM: remove superfluous setting of arch_number in board specific code.
  SPL: Allow ARM926EJS to avoid compiling in the CPU support code
  integrator: do not test first part of the memory
  arm: a320: fix broken timer
  ARM: define CONFIG_MACH_TYPE for all ronetix boards
  dm646x: pass board revision info to kernel
  dm646x: add new configuration for dm6467T
  arm, davinci: Fix setting of the SDRAM configuration register
  arm, davinci: Remove the duplication of LPSC functions
  arm, davinci: Rename AM1808 lowlevel functions to DA850
  da8xxevm: fix build error
  ARM: re-add MACH_TYPE_XXXXXX for VCMA9 board and add CONFIG_MACH_TYPE
2011-11-16 20:24:41 +01:00
Marek Vasut
f4f680aa36 iMX28: Add I2C bus driver
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Heiko Schocher <hs@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Detlev Zundel <dzu@denx.de>
Acked-by: Heiko Schocher<hs@denx.de>
2011-11-11 11:36:57 +01:00
Kumar Gala
aa5512157b fsl_i2c: Fix compile warning
fsl_i2c.c: In function 'i2c_init':
fsl_i2c.c:245:7: warning: assignment discards qualifiers from pointer target type

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-11-09 06:28:20 +01:00
Wolfgang Denk
688d8f33f2 Merge branch 'master' of git://git.denx.de/u-boot-arm
* 'master' of git://git.denx.de/u-boot-arm:
  Arm: re-introduce the MACH_TYPE_XXXXXX for EB_CPUX9K2 board
  arm: jadecpu: Readd MACH_TYPE_JADECPU
  at91: defined mach-types for otc570 board in board config file
  at91: defined mach-types for meesc board in board config file
  mx31pdk: Enable D and I caches
  ehci-mxc: remove incorrect comment
  README: Fix supported i.MX SoC list for CONFIG_MXC_SPI
  mx53: Turn off child clocks before reconfigure perclk_root
  qong: enable support for compressed images
  imx: imx31_phycore.h: fix checkpatch warnings
  vision2: Remove unused get_board_rev function
  mx53smd: Remove unused get_board_rev function
  mx53ard: Remove unused get_board_rev function
  mx53evk: Remove unused get_board_rev function
  mx53evk: Add RTC support
  mx53loco: Remove unused get_board_rev function
  mx53evk: Remove unneeded '1' from mx53evk.h
  OMAP3: mvblx: Initial support for mvBlueLYNX-X
  ARM: dig297: Define MACH_TYPE_OMAP3_CPS and CONFIG_MACH_TYPE
  omap3: mem: Move comments next to definitions
  omap3: mem: Clean-up whitespaces
  omap3: mem: Define and use common macros
  Davinci: ea20: added PREBOOT to configuration
  Davinci: ea20: added I2C support
  Davinci: ea20: added video support
  VIDEO: davinci: add framebuffer to da8xx
  ARM: Davinci: added missing registers to hardware.h
  Davinci: ea20: add gpios for LCD backlight control
  Davinci: ea20: add gpio for keeping power on in board_late_init
  Davinci: ea20: Add default U-Boot environment
  Davinci: ea20: Add early init to get early output from console
  Davinci: ea20: Add NAND support
  Davinci: ea20: set GPIOs to hold MII-Phy in reset and set UART0-Switch for console
  Davinci: ea20: set console on UART0
  arm, davinci: add cam_enc_4xx support
  arm926ejs, davinci: add missing spi defines for dm365
  arm926ejs, davinci: add cpuinfo for dm365
  arm, davinci: add lowlevel function for dm365 soc
  arm, davinci: add header files for dm365
  spl, nand: add 4bit HW ecc oob first nand_read_page function
  arm, davinci: add support for new spl framework
  spl: add option for adding post memory test to the SPL framework
  net, davinci_emac: make clock divider in MDIO control register configurable
  arm, usb, davinci: make USBPHY_CTL register configurable
  usb, davinci: add enable_vbus() weak function
  omap3evm: fix errors caused by multiple definitions
  omap3evm: Add (quick) configuration for NAND only
  omap3evm: Add (quick) configuration for MMC/SD only
  omap3evm: move common config options to new file
  omap3evm: Prepare to split configuration
  omap3evm: Reorder related config options
  omap/spl: actually enable the console
  davinci_emac: compilation fix, phy is array now
  omap3evm: Set environment variable 'ethaddr'
  arm, arm926: fix missing symbols in NAND_SPL mode
  arm, davinci: Add function lpsc_syncreset()
  arm, davinci: replace CONFIG_PRELOADER with CONFIG_SPL_BUILD
  arm/km: portl2 environment address update to P1B
  arm/km: adapt bootcounter evaluation
  arm/km: enable jffs2 cmds
  arm/km: trigger reconfiguration for the Xilinx FPGA
  arm/km: add boardid and hwkey to kernel command line
  ARM: Reintroduce MACH_TYPE_KM_KIRKWOOD for keymile ARM boards
  netspace_v2: enable I2C EEPROM support
  netspace_v2: fix SDRAM configuration
  armada100: define CONFIG_SYS_CACHELINE_SIZE
  pantheon: define CONFIG_SYS_CACHELINE_SIZE
  kirkwood: define CONFIG_SYS_CACHELINE_SIZE
  kirkwood: drop empty asm-offsets.s file
  arm/km/mgcoge3un: enhance "waitforne" feature
  arm/km: add variable waitforne to mgcoge3un
  gplugD: Fix for error:MACH_TYPE_SHEEVAD undeclared
  ARM: dreamplug: fix compilation
  ARM: DockStar: fix compilation
  ARM: netspace_v2: fix warnings
  am335x: Drop board_sysinfo struct
  am335x: Temporarily add MACH_TYPE define
  misc:pmic:samsung Enable PMIC driver at C210 Universal target
  dcache:s5p CONFIG_SYS_CACHELINE_SIZE added for s5p UNIVERSAL C210 target
  dcache:s5p CONFIG_SYS_CACHELINE_SIZE added for s5p GONI target
  smdkv310: use macro for mmc data read function address
  smdkv310: use spl framework for mmc spl
  SMDKV310: use get_ram_size() to validate dram size
  SMDKV310: Initialize board id using CONFIG_MACH_TYPE
  ORIGEN : use absolute paths and fix tool naming
  ORIGEN : enable device tree support
  MX25: tx25: Fix building due to missing MACH_TYPE
  mx31: Add board support for HALE TT-01
  mx31: add ESD control registers
  mx31: define pins and init for UART2 and CSPI3
  MX35: add support for flea3 board
  MX51: vision2: add MACH_TYPE in config file
  vision2: Remove unused header file
  mx51evk: Remove unused get_board_rev function
  mx51evk: Remove unneeded '1' from mx51evk.h
  I2C: Fix mxc_i2c.c problem on imx31_phycore
  mx35pdk: Add RTC support
  mx51evk: Use GPIO API for configuring the IOMUX
  mx51evk: Add RTC support
  rtc: Make mc13783-rtc driver generic
  qong: remove unneeded IOMUX settings
  qong: Use mx31_set_gpr to setup USBH2 pins
  mx31: Introduce mx31_set_gpr function
  mx31pdk: Add MC13783 PMIC support
  qong: remove unneeded "1" from qong.h
  misc: pmic: fix regression in pmic_fsl.c (SPI)
  mx5 configs: CONFIG_PRIME should really be CONFIG_ETHPRIME
  MX35: Drop unnecessary prototypes from imx-regs.h
  I2C: added I2C-2 and I2C-3 to MX35
  MX35: factorize common assembly code
  MX35: add reset cause as provided by other i.MX
  MX35: add pins definition for UART3
  MX35: added ESDC structure to imx-regs
2011-11-08 00:38:52 +01:00
Jerry Huang
c9a8b25ef9 Powerpc/i2c: Use the same initialize codes
Make the I2C2 and I2C1 use the same initialize codes.

Signed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com>
2011-11-04 06:21:26 +01:00
Marek Vasut
bf0783df0d I2C: Fix mxc_i2c.c problem on imx31_phycore
The problem was caused by a global variable being used early in the boot
process.

The symptoms were on imx31_phycore board, reading the environment from I2C
EEPROM didn't work correctly and causes default environment to be loaded.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Cc: Heiko Schocher <hs@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Acked-by: Heiko Schocher <hs@denx.de>
Tested-by: Anatolij Gustschin <agust@denx.de>
Tested-by: Stefano Babic <sbabic@denx.de>
2011-11-03 22:56:19 +01:00
Stefano Babic
a1c662965d I2C: added I2C-2 and I2C-3 to MX35
Signed-off-by: Stefano Babic <sbabic@denx.de>
CC: Heiko Schocher <hs@denx.de>
Acked-by: Heiko Schocher <hs@denx.de>
2011-11-03 22:56:18 +01:00
Marek Vasut
b567b8ff79 I2C: Add i2c_get/set_speed() to mxc_i2c.c
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Heiko Schocher <hs@denx.de>
Acked-by: Heiko Schocher <hs@denx.de>
2011-10-27 21:56:30 +02:00
Lei Wen
d308c9d35a I2C: mv_i2c: fix multi-bus init issue
When enable the multi-bus, the current_bus is not inited in the original
implementation, which make the i2c operation unpredicatable.

Signed-off-by: Lei Wen <leiwen@marvell.com>
2011-10-03 11:50:09 +02:00
Lei Wen
2be1ed349c I2C: mv_i2c: fix build issue when enable debug option
When DEBUG_I2C is open, the following build issue would shows up.

mv_i2c.c: In function 'i2c_transfer':
mv_i2c.c:257: error: 'ISR' undeclared (first use in this function)
mv_i2c.c:257: error: (Each undeclared identifier is reported only once
mv_i2c.c:257: error: for each function it appears in.)

Signed-off-by: Lei Wen <leiwen@marvell.com>
2011-10-03 11:47:07 +02:00
Graeme Russ
e3e454cd72 console: Squelch pre-console output in console functions
There are some locations in the code which anticipate printf() being called
before the console is ready by squelching printf() on gd->have_console.
Move this squelching into printf(), vprintf(), puts() and putc(). Also
make tstc() and getc() return 0 if console is not yet initialised

Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
Tested-by: Simon Glass <sjg@chromium.org>
2011-10-01 21:54:49 +02:00
Marek Vasut
db84140bb7 I2C: mxc_i2c rework
Rewrite the mxc_i2c driver.
 * This version is much closer to Linux implementation.
 * Fixes IPG_PERCLK being incorrectly used as clock source
 * Fixes behaviour of the driver on iMX51
 * Clean up coding style a bit ;-)

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Heiko Schocher <hs@denx.de>
Cc: Jason Hui <jason.hui@linaro.org>
Acked-by: Jason Liu <jason.hui@linro.org>
Acked-by: Heiko Schocher <hs@denx.de>
Tested-by: Jason Liu <jason.hui@linro.org>
2011-09-30 22:01:05 +02:00
Heiko Schocher
49d6da6032 i2c, davinci: add i2c set speed
Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Paulraj Sandeep <s-paulraj@ti.com>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2011-09-30 22:00:56 +02:00
Michael Jones
89677b27d3 ARMV7: OMAP: I2C driver: cosmetic: make checkpatch-compatible
Signed-off-by: Michael Jones <michael.jones@matrix-vision.de>
Acked-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2011-09-12 17:40:48 +02:00
Michael Jones
0607e2b97a ARMV7: OMAP: Write more than 1 byte at a time in i2c_write
This allows the EEPROM layer to send a single i2c write command
per page, and wait CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS between
i2c write commands.

Signed-off-by: Michael Jones <michael.jones@matrix-vision.de>
Acked-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2011-09-12 17:40:48 +02:00
Stefano Babic
30032710ed I2C: mxc: fix compilation for MX31
Signed-off-by: Stefano Babic <sbabic@denx.de>
CC: Heiko Schocher <hs@denx.de>
Acked-by: Heiko Schocher <hs@denx.de>
2011-09-07 22:11:47 +02:00
Michael Jones
f9a78b8d4f cosmetic: spell fixes etc.
Signed-off-by: Michael Jones <michael.jones@matrix-vision.de>
Acked-by: Detlev Zundel <dzu@denx.de>
2011-07-28 16:32:50 +02:00
Michael Brandt
d3d6427a3f I2C: Add driver for ST-Ericsson U8500 i2c
Signed-off-by: John Rigby <john.rigby@linaro.org>
CC: Heiko Schocher <hs@denx.de>
2011-06-01 19:22:47 +02:00
Heiko Schocher
4bd5566ee8 i2c, soft_i2c: deblock bus if switching to another i2c bus
Deblock i2c bus when switching to another i2c bus, if using
i2c_set_bus_num().

Signed-off-by: Heiko Schocher <hs@denx.de>
cc: Wolfgang Denk <wd@denx.de>
cc: Detlev Zundel <dzu@denx.de>
cc: Valentin Longchamp <valentin.longchamp@keymile.com>
cc: Holger Brunck <holger.brunck@keymile.com>
Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
2011-04-28 10:57:08 +02:00
Albert ARIBAUD
57b4bce996 Replace obsolete e-mail address
Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
2011-04-27 19:38:09 +02:00
Lei Wen
adb00bb6a0 I2C: mv_i2c: add multi bus support
Add the ability to support multiple i2c bus for mv_i2c

Acked-by: Heiko Schocher <hs@denx.de>
Acked-by: Prafulla Wadaskar <prafulla@marvell.com>
Signed-off-by: Lei Wen <leiwen@marvell.com>
2011-04-27 19:38:08 +02:00
Lei Wen
3df619ec2c mv_i2c: use structure to replace the direclty define
Add i2c_clk_enable in the cpu specific code, since previous platform it,
while new platform don't need. In the pantheon and armada100 platform,
this function is defined as NULL one.

Acked-by: Heiko Schocher <hs@denx.de>
Acked-by: Prafulla Wadaskar <prafulla@marvell.com>
Signed-off-by: Lei Wen <leiwen@marvell.com>
2011-04-27 19:38:08 +02:00
Lei Wen
879de1275a mv_i2c: fix timeout value to be consistent with comments
The original 10000 value would be 100ms, which is not
the comments said.

Acked-by: Heiko Schocher <hs@denx.de>
Acked-by: Prafulla Wadaskar <prafulla@marvell.com>
Signed-off-by: Lei Wen <leiwen@marvell.com>
2011-04-27 19:38:07 +02:00
Lei Wen
68432c2743 pxa: move i2c driver to the common place
For better sharing with other platform other than pxa's,
it is more convenient to put the driver to the common place.

Acked-by: Heiko Schocher <hs@denx.de>
Acked-by: Prafulla Wadaskar <prafulla@marvell.com>
Signed-off-by: Lei Wen <leiwen@marvell.com>
2011-04-27 19:38:07 +02:00
Stefano Babic
8627111543 IMX: MX31: Cleanup include files and drop nasty #ifdef in drivers
As exception among the i.MX processors, the i.MX31 has headers
without general names (mx31-regs.h, mx31.h instead of imx-regs.h and
clock.h). This requires several nasty #ifdef in the drivers to
include the correct header. The patch cleans up the driver and
renames the header files as for the other i.MX processors.

Signed-off-by: Stefano Babic <sbabic@denx.de>
2011-04-27 19:38:05 +02:00
Nick Thompson
0e57968a21 I2C: OMAP: detect more devices when probing an i2c bus
The omap24xx driver only seems to support devices that have a single subaddress
byte. With these types of devices, the first access in a bus transaction is
usually a write (writes the subaddress) followed by either a read or write to
access the devices registers.

Many such devices will respond to a read as the first access, but there are at
least some that will NACK such a read. (e.g. ADV7180.)

The probe function attempts to detect a devices ACK to a read access only and
fails to find devices that NACK a read.

This commit modifies the probe function to start a write instead. This detects
devices that respond to reads (since they must also respond to writes) as well
as those that only respond to writes. The bus is immediately set to idle after a
(N)ACK avoiding actually writing anything to the device.

Signed-off-by: Nick Thompson <nick.thompson@ge.com>
2011-04-14 08:33:23 +02:00
Stefano Babic
81687212ee I2C: mxc_i2c: address failure with mx35 processor
There is sporadic failures when more as one I2C slave
is on the bus and the processor tries to communicate
with more as one slave.
The problem was seen on a mx35pdk (two I2C slaves,
PMIC controller and CAN/RTC chip).

The current driver uses the IIF bit in the status register
to check if the bus is busy or not. According to the manual,
this is not correct, because the IIB bit should be checked.
Not only, to check if a transfer is finished must be checked
the ICF bit, and this is not tested at all.

This patch comes from analyse with a corresponding driver
provided by Freescale as part of the LTIB tool. Comparing
the two drivers, it appears that the current u-boot driver checks
the wrong bits, and depending on race condition, the transfer
can be successful or not.

The patch gets rid also of own debug function (DPRINTF),
replaced with the general debug().

Tested on Freescale mx35pdk.

Signed-off-by: Stefano Babic <sbabic@denx.de>
CC: Heiko Schocher <hs@denx.de>
Acked-by: Heiko Schocher <hs@denx.de>
2011-02-02 00:54:43 +01:00
Stefano Babic
1d549ade61 I2C: mxc_i2c: get rid of __REG access
This driver accesses to processor's register
via __REG macros, that are removed (or are planned
to be removed) and replaced by C structures.
This patches replaces all occurrencies of __REG macros.

Signed-off-by: Stefano Babic <sbabic@denx.de>
CC: Heiko Schocher <hs@denx.de>
Acked-by: Heiko Schocher <hs@denx.de>
2011-02-02 00:54:42 +01:00
Stefano Babic
04220612f6 mxc_i2c: Add support for the i.MX35 processor
Signed-off-by: Stefano Babic <sbabic@denx.de>
CC: Heiko Schocher <hs@denx.de>
Acked-by: Heiko Schocher <hs@denx.de>
2011-02-02 00:54:42 +01:00
Liu Hui-R64343
127cec1889 mxc_i2c: add support for MX53 processor
This patch add I2C support for Freescale MX53 processor

Signed-off-by: Jason Liu <r64343@freescale.com>
2011-02-02 00:54:42 +01:00
Ryan Mallon
f3100ff767 Fix at91 includes in soft_i2c driver
Make at91 header includes in soft_i2c depend only on CONFIG_AT91FAMILY
rather than individual SoCs.

Signed-off-by: Ryan Mallon <ryan@bluewatersys.com>
Acked-by: Reinhard Meyer<u-boot@emk-elektronik.de>
2011-01-27 07:27:32 +01:00
John Rigby
2956532625 Move DECLARE_GLOBAL_DATA_PTR to file scope
It can be optimised out by the compiler otherwise resulting
in obscure errors like a board not booting.

This has been documented in README since 2006 when these were
first fixed up for GCC 4.x.

Signed-off-by: John Rigby <john.rigby@linaro.org>

Fix some additional places.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-By: Albert ARIBAUD <albert.aribaud@free.fr>
2010-12-21 11:33:36 +01:00
Sebastien Carlier
6d8962e814 Switch from archive libraries to partial linking
Before this commit, weak symbols were not overridden by non-weak symbols
found in archive libraries when linking with recent versions of
binutils.  As stated in the System V ABI, "the link editor does not
extract archive members to resolve undefined weak symbols".

This commit changes all Makefiles to use partial linking (ld -r) instead
of creating library archives, which forces all symbols to participate in
linking, allowing non-weak symbols to override weak symbols as intended.
This approach is also used by Linux, from which the gmake function
cmd_link_o_target (defined in config.mk and used in all Makefiles) is
inspired.

The name of each former library archive is preserved except for
extensions which change from ".a" to ".o".  This commit updates
references accordingly where needed, in particular in some linker
scripts.

This commit reveals board configurations that exclude some features but
include source files that depend these disabled features in the build,
resulting in undefined symbols.  Known such cases include:
- disabling CMD_NET but not CMD_NFS;
- enabling CONFIG_OF_LIBFDT but not CONFIG_QE.

Signed-off-by: Sebastien Carlier <sebastien.carlier@gmail.com>
2010-11-17 21:02:18 +01:00
Wolfgang Denk
17dd883c5b Merge branch 'master' of git://git.denx.de/u-boot-samsung 2010-10-29 21:47:48 +02:00
C Nauman
d9abba8254 Add generic support for samsung s3c2440
This patch adds generic support for the Samsung s3c2440 processor.

Global s3c24x0 changes to struct members converting from upper case to
lower case.

Signed-off-by: Craig Nauman <cnauman@diagraph.com>
Cc: kevin.morfitt@fearnside-systems.co.uk
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2010-10-28 15:35:56 +09:00
Steve Sakoman
4df6689495 ARMV7: OMAP: I2C driver: Fix bug found in 37XX testing
On OMAP36/37XX the standard on chip pullups are not sufficient to
ensure proper i2c operation without external pullups or switching
to high speed mode and enabling special on chip pullups.

This is an issue for Beagle xM, which does not have external pullups
on the expansion board i2c lines.

The issue manifests itself as an AL (arbitration lost) error when
probing for a non-existent device (i.e. on a Beagle xM with no expansion
boards attached).  This issue does not occur on expansion boards that
include pullups or on Overo 37XX COM's since they include pull-ups.

This patch fixes the issue by checking for the AL bit in the i2c_probe
function.

Signed-off-by: Steve Sakoman <steve.sakoman@linaro.org>
2010-10-25 07:57:20 +02:00
Steve Sakoman
fbad355562 ARMV7: OMAP: I2C driver: Restructure i2c_probe function
This patch removes the "magic number" delays and instead
monitors state changes in the status register bits.

Signed-off-by: Steve Sakoman <steve.sakoman@linaro.org>
Tested-by: Heiko Schocher <hs@denx.de>
2010-10-20 15:28:48 +02:00
Steve Sakoman
d480c46773 ARMV7: OMAP: I2C driver: Restructure i2c_write_byte function
This patch removes the "magic number" delays and instead
monitors state changes in the status register bits.

Signed-off-by: Steve Sakoman <steve.sakoman@linaro.org>
Tested-by: Heiko Schocher <hs@denx.de>
2010-10-20 15:28:41 +02:00
Steve Sakoman
da0cc665bc ARMV7: OMAP: I2C driver: Restructure i2c_read_byte function
This patch removes the "magic number" delays and instead
monitors state changes in the status register bits.

Signed-off-by: Steve Sakoman <steve.sakomanlinaro.org>
Tested-by: Heiko Schocher <hs@denx.de>
2010-10-20 15:28:37 +02:00
Steve Sakoman
73e8747fe4 ARMV7: OMAP: I2C driver: Use same timeout value as linux kernel driver
This patch matches the poll interval (1 millisecond) and timeout (1 second)
used in the linux driver. It also adds a return value of 0 in the event of
a timeout error and cleans up some formatting errors in that section of the
code.

Signed-off-by: Steve Sakoman <steve.sakoman@linaro.org>
Tested-by: Heiko Schocher <hs@denx.de>
2010-10-20 15:28:33 +02:00
Stefan Roese
b36df56115 ppc4xx: Move ppc4xx headers to powerpc include directory
This patch moves some ppc4xx related headers from the common include
directory (include/) to the powerpc specific one
(arch/powerpc/include/asm/). This way to common include directory is not
so cluttered with files.

Signed-off-by: Stefan Roese <sr@denx.de>
2010-09-23 09:02:05 +02:00
Heiko Schocher
1724fe9adf i2c, omap24xx: set bus_initialized only after relocation.
Portions of this work were supported by funding from
the CE Linux Forum.

Signed-off-by: Heiko Schocher <hs@denx.de>
2010-09-19 19:29:52 +02:00
Wolfgang Denk
2d941de9d5 Prepare v2010.09-rc1
Coding style cleanup.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2010-09-10 00:16:19 +02:00
Albert Aribaud
306563a773 i2c: rewrite mvtwsi, support orion5x and kirkwood
This rewrite of the mvtwsi driver is 25% smaller and much
faster and simpler than the previous code.

Signed-off-by: Albert Aribaud <albert.aribaud@free.fr>
Acked-by: Prafulla Wadaskar<prafulla@marvell.com>
Acked-by: Heiko Schocher<hs@denx.de>
2010-08-30 14:10:35 +02:00