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2012-07-07omap24xx_i2c: Add AM33XX supportTom Rini
The same places that check for CONFIG_OMAP44XX need to check for CONFIG_AM33XX as we share the same i2c block. Cc: Heiko Schocher <hs@denx.de> Signed-off-by: Tom Rini <trini@ti.com> Acked-by: Heiko Schocher <hs@denx.de>
2012-07-07Revert "I2C: OMAP: detect more devices when probing an i2c bus"Tom Rini
This reverts commit 0e57968a215d1b9d271f3fa5bebeddeaea0c8075. The short version of the original commit is that some i2c devices cannot be probed via read as they NAK the first cycle, so try and probe via a write that we abort before it writes to the device. This however is not allowed by the TRM for any of these parts. The section on I2C_CON (table 17-35 I2C_CON for am/dm37x for example) says you must not change the register while STT has been set. On these parts, the unpredictable behavior that the chip exhibits is not problematic. On OMAP4 however it results in the chip being in a bad state: Panda # i2c probe Valid chip addresses: 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5D 5E 5F 60 61 62 63 64 65 66 67 68 69 6A 6B 6C 6D 6E 6F 70 71 72 73 74 75 76 77 78 79 7A 7B 7C 7D 7E 7F Panda # i2c md 50 0 timed out in wait_for_pin: I2C_STAT=0 I2C read: I/O error Error reading the chip. We must revert the original behavior to bring probe back into line with the TRM. Cc: Nick Thompson <nick.thompson@ge.com> Cc: Heiko Schocher <hs@denx.de> Signed-off-by: Tom Rini <trini@ti.com> Acked-by: Heiko Schocher <hs@denx.de>
2012-05-15tegra: i2c: Add function to find DVC busSimon Glass
Add tegra_i2c_get_dvc_bus_num() to obtain the I2C bus number of DVC bus. This allows us to talk to the PMU. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-04-24i2c:designware Turn off the ctrl when setting the speedArmando Visconti
The designware i2c controller must be turned off before setting the speed in IC_CON register, as stated in the section 6.3.1 of the dw_apb_i2c_db.pdf. Signed-off-by: Michel Sanches <michel.sanches@st.com> Signed-off-by: Armando Visconti <armando.visconti@st.com> Signed-off-by: Amit Virdi <amit.virdi@st.com>
2012-04-24i2c: Add support for designware i2c controllerVipin KUMAR
Earlier, a driver exists in the u-boot source for designware i2c interface. That driver was specific to spear platforms. This patch implements the i2c controller as a generic driver which can be used by multiple platforms The driver files are now renamed to designware_i2c.c and designware_i2c.h and these are moved into drivers/i2c folder for reusability by other platforms Signed-off-by: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Amit Virdi <amit.virdi@st.com>
2012-04-24sh: i2c: Add support I2C controller of SH7734Nobuhiro Iwamatsu
Renesas SH7734 has two I2C interfaceis. This supports these I2C. V5: - include i2c.h. - Add check of icsr bit polling logic. - Implement i2c_probe. V4: - Remove sh_i2c_dump_reg function. - Use puts() when there's no format. - Chnage check for I2C bus number. - Remove space before the semi-colon. V3: - Fix error for whitespace. V2: - Changed bit control to use the clr|set|clrsetbits_* functions. - Fix wrong comment style. - Add new line before for loop in i2c_read. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Acked-by: Heiko Schocher <hs@denx.de> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Acked-by: Mike Frysinger <vapier@gentoo.org>
2012-03-29tegra: i2c: Add I2C driverYen Lin
Add basic i2c driver for Tegra2 with 8- and 16-bit address support. The driver requires CONFIG_OF_CONTROL to obtain its configuration from the device tree. (Simon Glass: sjg@chromium.org modified for upstream) Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Heiko Schocher <hs@denx.de> Acked-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-02-21Revert "ARM: I2C: I2C Multi byte address support"Tom Rini
This reverts commits 2faa76196af4b3e93bcb9e38ed9090cbd3b06db3 as this has introduced some large problems on all other platforms and have more changes in them than the commit message implies. Cc: Heiko Schocher <hs@denx.de> Cc: Patil, Rachna <rachna@ti.com> Signed-off-by: Tom Rini <trini@ti.com>
2012-02-21Revert "ARM: AM33XX: Add AM33XX I2C driver support"Tom Rini
This reverts commit 498cbdfe62a8330f6c89765bdd15e60328a26511 as we need to revert the i2c changes that add the support for the platform. Cc: Heiko Schocher <hs@denx.de> Cc: Patil, Rachna <rachna@ti.com> Signed-off-by: Tom Rini <trini@ti.com>
2012-01-23ARM: AM33XX: Add AM33XX I2C driver supportPatil, Rachna
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>
2012-01-23ARM: I2C: I2C Multi byte address supportPatil, Rachna
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>
2012-01-16drivers/i2c/omap24xx_i2c.c: move all local variables to SRAMAndreas Müller
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>
2012-01-16drivers/i2c/omap24xx_i2c.c: replace printf with one argument by putsAndreas Müller
Signed-off-by: Andreas Müller <schnitzeltony@gmx.de> Acked-by: Heiko Schocher <hs@denx.de>
2011-11-23drivers/i2c/davinci_i2c.c: Fix GCC 4.6 warningAnatolij Gustschin
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>
2011-11-23i2c: sh: Add support I2C for Renesas SHNobuhiro Iwamatsu
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>
2011-11-16Merge branch 'master' of git://git.denx.de/u-boot-armWolfgang Denk
* '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
2011-11-11iMX28: Add I2C bus driverMarek Vasut
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>
2011-11-09fsl_i2c: Fix compile warningKumar Gala
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>
2011-11-08Merge branch 'master' of git://git.denx.de/u-boot-armWolfgang Denk
* '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
2011-11-04Powerpc/i2c: Use the same initialize codesJerry Huang
Make the I2C2 and I2C1 use the same initialize codes. Signed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com>
2011-11-03I2C: Fix mxc_i2c.c problem on imx31_phycoreMarek Vasut
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>
2011-11-03I2C: added I2C-2 and I2C-3 to MX35Stefano Babic
Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Heiko Schocher <hs@denx.de> Acked-by: Heiko Schocher <hs@denx.de>
2011-10-27I2C: Add i2c_get/set_speed() to mxc_i2c.cMarek Vasut
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>
2011-10-03I2C: mv_i2c: fix multi-bus init issueLei Wen
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>
2011-10-03I2C: mv_i2c: fix build issue when enable debug optionLei Wen
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>
2011-10-01console: Squelch pre-console output in console functionsGraeme Russ
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>
2011-09-30I2C: mxc_i2c reworkMarek Vasut
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>
2011-09-30i2c, davinci: add i2c set speedHeiko Schocher
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>
2011-09-12ARMV7: OMAP: I2C driver: cosmetic: make checkpatch-compatibleMichael Jones
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>
2011-09-12ARMV7: OMAP: Write more than 1 byte at a time in i2c_writeMichael Jones
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>
2011-09-07I2C: mxc: fix compilation for MX31Stefano Babic
Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Heiko Schocher <hs@denx.de> Acked-by: Heiko Schocher <hs@denx.de>
2011-07-28cosmetic: spell fixes etc.Michael Jones
Signed-off-by: Michael Jones <michael.jones@matrix-vision.de> Acked-by: Detlev Zundel <dzu@denx.de>
2011-06-01I2C: Add driver for ST-Ericsson U8500 i2cMichael Brandt
Signed-off-by: John Rigby <john.rigby@linaro.org> CC: Heiko Schocher <hs@denx.de>
2011-04-28i2c, soft_i2c: deblock bus if switching to another i2c busHeiko Schocher
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>
2011-04-27Replace obsolete e-mail addressAlbert ARIBAUD
Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
2011-04-27I2C: mv_i2c: add multi bus supportLei Wen
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>
2011-04-27mv_i2c: use structure to replace the direclty defineLei Wen
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>
2011-04-27mv_i2c: fix timeout value to be consistent with commentsLei Wen
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>
2011-04-27pxa: move i2c driver to the common placeLei Wen
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>
2011-04-27IMX: MX31: Cleanup include files and drop nasty #ifdef in driversStefano Babic
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>
2011-04-14I2C: OMAP: detect more devices when probing an i2c busNick Thompson
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>
2011-02-02I2C: mxc_i2c: address failure with mx35 processorStefano Babic
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>
2011-02-02I2C: mxc_i2c: get rid of __REG accessStefano Babic
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>
2011-02-02mxc_i2c: Add support for the i.MX35 processorStefano Babic
Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Heiko Schocher <hs@denx.de> Acked-by: Heiko Schocher <hs@denx.de>
2011-02-02mxc_i2c: add support for MX53 processorLiu Hui-R64343
This patch add I2C support for Freescale MX53 processor Signed-off-by: Jason Liu <r64343@freescale.com>
2011-01-27Fix at91 includes in soft_i2c driverRyan Mallon
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>
2010-12-21Move DECLARE_GLOBAL_DATA_PTR to file scopeJohn Rigby
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>
2010-11-17Switch from archive libraries to partial linkingSebastien Carlier
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>
2010-10-29Merge branch 'master' of git://git.denx.de/u-boot-samsungWolfgang Denk
2010-10-28Add generic support for samsung s3c2440C Nauman
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>
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