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* drivers/i2c: Update fti2c010.[ch], i2c_core.c to use SPDX identifiersTom Rini2013-07-25-17/+3
| | | | | Acked-by: Heiko Schocher <hs@denx.de> Signed-off-by: Tom Rini <trini@ti.com>
* Merge branch 'master' of git://git.denx.de/u-boot-i2cTom Rini2013-07-24-333/+1236
|\ | | | | | | | | | | | | | | | | | | | | The sandburst-specific i2c drivers have been deleted, conflict was just over the SPDX conversion. Conflicts: board/sandburst/common/ppc440gx_i2c.c board/sandburst/common/ppc440gx_i2c.h Signed-off-by: Tom Rini <trini@ti.com>
| * i2c: add Faraday FTI2C010 I2C controller supportKuo-Jung Su2013-07-23-0/+451
| | | | | | | | | | | | | | | | | | Faraday FTI2C010 is a multi-function I2C controller which supports both master and slave mode. This patch simplily implements the master mode only. Signed-off-by: Kuo-Jung Su <dantesu@faraday-tech.com> CC: Heiko Schocher <hs@denx.de>
| * I2C: mxc_i2c: Add support for Vybrid VF610 platformAlison Wang2013-07-23-7/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for Vybrid VF610 platform. There are some differences between i.MX6 and Vybrid for I2C controller. (1) The registers' offset are different. (2) The I2C clock divider values are different. (3) In I2C control register, the enable/disable/reset bit is inverted for Vybrid comparing to i.MX6. (4) In I2C status register, the interrupt flag bit is cleared by writing "1" for Vybrid. For i.MX6, this bit is cleared by writing "0". (5) In I2C status register, the arbitration lost flag bit is cleared by writing "1" for Vybrid. For i.MX6, this bit is cleared by writing "0". Signed-off-by: Alison Wang <b18965@freescale.com>
| * i2c, ppc4xx_i2c: switch to new multibus/multiadapter supportDirk Eibach2013-07-23-98/+97
| | | | | | | | | | | | | | Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc> Cc: Heiko Schocher <hs@denx.de> Cc: Stefan Roese <sr@denx.de> Tested-by: Stefan Roese <sr@denx.de>
| * tegra: i2c: Enable new CONFIG_SYS_I2C frameworkSimon Glass2013-07-23-49/+33
| | | | | | | | | | | | | | | | This enables CONFIG_SYS_I2C on Tegra, updating existing boards and the Tegra i2c driver to support this. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Heiko Schocher <hs@denx.de>
| * tegra: i2c: Add function to know about current busSimon Glass2013-07-23-17/+61
| | | | | | | | | | | | | | | | | | | | Rather than using a variable in various places, add a single function, tegra_i2c_get_bus(), which returns a pointer to information about a bus. This will make it easier to move to the new i2c framework. Signed-off-by: Simon Glass <sjg@chromium.org>
| * i2c, fsl_i2c: switch to new multibus/multiadapter supportHeiko Schocher2013-07-23-134/+86
| | | | | | | | | | | | | | | | | | - added to fsl_i2c driver new multibus/multiadpater support - adapted all config files, which uses this driver Signed-off-by: Heiko Schocher <hs@denx.de> Cc: Simon Glass <sjg@chromium.org> Cc: Stephen Warren <swarren@wwwdotorg.org>
| * i2c, soft-i2c: switch to new multibus/multiadapter supportHeiko Schocher2013-07-23-48/+58
| | | | | | | | | | | | | | | | | | - added to soft_i2c driver new multibus/multiadpater support - adapted all config files, which uses this driver Signed-off-by: Heiko Schocher <hs@denx.de> Cc: Simon Glass <sjg@chromium.org> Cc: Stephen Warren <swarren@wwwdotorg.org>
| * i2c: add i2c_core and prepare for new multibus supportHeiko Schocher2013-07-23-0/+415
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This Patch introduce the new i2c_core file, which holds the I2C core functions, for the rework of the multibus/ multiadapter support. Also adds changes in i2c.h for the new I2C multibus/multiadapter support. This new support can be activated with the CONFIG_SYS_I2C define. Signed-off-by: Heiko Schocher <hs@denx.de> Signed-off-by: Simon Glass <sjg@chromium.org> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Stephen Warren <swarren@wwwdotorg.org>
* | Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-376/+23
|/ | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* i2c: fsl_i2c: i2c_read(): dont try to write address w/ alen=0Reinhard Pfau2013-07-16-3/+6
| | | | | | | | | if alen is 0: no longer start a write cycle before reading data. Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc> Signed-off-by: Reinhard Pfau <reinhard.pfau@gdsys.cc> Acked-by: Heiko Schocher <hs@denx.de> Signed-off-by: Andy Fleming <afleming@freescale.com>
* EXYNOS: Resolve the i2c compilation errorAmar2013-07-10-8/+1
| | | | | | | | | | | | | | | | This patch resolves the below mentioned compilation error of i2c driver for non-FDT case Compilation error: s3c24x0_i2c.c: In function 'board_i2c_init': s3c24x0_i2c.c:544:18: error: 'CONFIG_MAX_I2C_NUM' undeclared (first use in this function) s3c24x0_i2c.c:544:18: note: each undeclared identifier is reported only once for each function it appears in s3c24x0_i2c.c:545:3: warning: implicit declaration of function Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Signed-off-by: Amar <amarendra.xt@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
* EXYNOS5: I2C: Add FDT and non-FDT support for I2CAmar2013-06-24-2/+10
| | | | | | | | | This patch updates the function board_i2c_init() to add support for both FDT and non-FDT for I2C, and initialise the I2C channels. Signed-off-by: Amar <amarendra.xt@samsung.com> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
* ARM: OMAP: I2C: New read, write and probe functionsLubomir Popov2013-06-10-191/+299
| | | | | | | | | | | | | | | | | | | New i2c_read, i2c_write and i2c_probe functions, tested on OMAP4 (4430/60/70), OMAP5 (5430) and AM335X (3359); should work on older OMAPs and derivatives as well. The only anticipated exception would be the OMAP2420, which shall require driver modification. - Rewritten i2c_read to operate correctly with all types of chips (old function could not read consistent data from some I2C slaves). - Optimised i2c_write. - New i2c_probe, performs write access vs read. The old probe could hang the system under certain conditions (e.g. unconfigured pads). - The read/write/probe functions try to identify unconfigured bus. - Status functions now read irqstatus_raw as per TRM guidelines (except for OMAP243X and OMAP34XX). - Driver now supports up to I2C5 (OMAP5). Signed-off-by: Lubomir Popov <lpopov@mm-sol.com> Tested-by: Heiko Schocher <hs@denx.de>
* i2c: zynq: Add support for Xilinx ZynqMichal Simek2013-04-30-0/+307
| | | | | | | | | Support Xilinx Zynq i2c controller. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Heiko Schocher <hs@denx.de> Reviewed-by: Tom Rini <trini@ti.com>
* Merge branch 'master' of git://git.denx.de/u-boot-armTom Rini2013-03-18-5/+37
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Albert's rework of the linker scripts conflicted with Simon's making everyone use __bss_end. We also had a minor conflict over README.scrapyard being added to in mainline and enhanced in u-boot-arm/master with proper formatting. Conflicts: arch/arm/cpu/ixp/u-boot.lds arch/arm/cpu/u-boot.lds arch/arm/lib/Makefile board/actux1/u-boot.lds board/actux2/u-boot.lds board/actux3/u-boot.lds board/dvlhost/u-boot.lds board/freescale/mx31ads/u-boot.lds doc/README.scrapyard include/configs/tegra-common.h Build tested for all of ARM and run-time tested on am335x_evm. Signed-off-by: Tom Rini <trini@ti.com>
| * Tegra: I2C: Add T114 clock support to tegra_i2c driverTom Warren2013-03-14-5/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | T114 has a slightly different I2C clock, with a new (extra) divisor in standard/fast mode and HS mode. Tested on my Dalmore, and the I2C clock is 100KHz +/- 3Hz on my Saleae Logic analyzer. Added a new entry in compat_names for T114 I2C since it differs from the previous Tegra SoCs. A flag is set when T114 I2C HW is found so new features like the extra clock divisor can be used. Signed-off-by: Tom Warren <twarren@nvidia.com> Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
* | I2C: S3C24X0: Bug fixes in i2c_transferRajeshwari Shinde2013-03-12-8/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch corrects the following issues 1) Write the correct M/T Stop value to I2CSTAT after i2c write. According to the spec, after finish the data transmission, we should write a M/T Stop (I2C_MODE_MT | I2C_TXRX_ENA) to I2CSTAT instead of a M/R Stop (I2C_MODE_MR | I2C_TXRX_ENA). 2) Not split the write to I2CSTAT into 2 steps in i2c read. According to the spec, we should write the combined M/R Start value to I2CSTAT after setting the slave address to I2CDS 3) Fix the mistake of making an equality check to an assignment. In the case of I2C write with the zero-length address, while tranfering the data, it should be an equality check (==) instead of an assignment (=). Signed-off-by: Tom Wai-Hong Tam <waihong@chromium.org> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
* | I2C: S3C24X0: Remove the dead codeRajeshwari Shinde2013-03-12-7/+0
|/ | | | | | | | This revomes the code under #if 0 in the s3c24x0_i2c driver. Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Acked-by: Simon Glass <sjg@chromium.org>
* ppc: m68k: Move i2c1_clk, i2c2_clk to arch_global_dataSimon Glass2013-02-04-3/+4
| | | | | | | Move these fields into arch_global_data and tidy up. This is needed for both ppc and m68k since they share the i2c driver. Signed-off-by: Simon Glass <sjg@chromium.org>
* i2c: mxs: Staticize the functions in the driverMarek Vasut2013-01-29-4/+4
| | | | | | | | The local functions in the mxs i2c driver are not marked static, make it so. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Heiko Schocher <hs@denx.de>
* Merge branch 'u-boot-samsung/master' into 'u-boot-arm/master'Albert ARIBAUD2013-01-14-1/+91
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| * I2C: S3C24X0: Resolve build error for VCMA9Rajeshwari Shinde2013-01-14-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch resolves the following build errors for I2C driver in VCMA9: In file included from s3c24x0_i2c.c:40:0: s3c24x0_i2c.h:38:17: error: field 'id' has incomplete type s3c24x0_i2c.c:70:39: error: 'CONFIG_MAX_I2C_NUM' undeclared here (not in a function) s3c24x0_i2c.c:70:31: warning: 'i2c_bus' defined but not used [-Wunused-variable] s3c24x0_i2c.c:72:12: warning: 'i2c_busses' defined but not used [-Wunused-variable] Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
| * I2C: Driver changes for FDT supportRajeshwari Shinde2013-01-08-1/+90
| | | | | | | | | | | | | | | | | | | | Functions added to get the I2C bus number and reset I2C bus using FDT node. Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Acked-by: Simon Glass <sjg@chromium.org> Acked-by: Heiko Schocher <hs@denx.de> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
* | Merge branch 'u-boot-ti/master' into 'u-boot-arm/master'Albert ARIBAUD2013-01-08-6/+14
|\ \ | |/ |/| | | | | This required manual merging drivers/mtd/nand/Makefile and adding am335x_evm support for CONFIG_SPL_NAND_DRIVERS
| * omap24xx_i2c: Handle wait_for_bb errorVincent Stehlé2012-12-10-6/+14
| | | | | | | | | | | | | | | | We add a return code to wait_for_bb() to be able to report errors to the callers properly. We in turn handle this new error code in i2c_read, i2c_write and i2c_probe. Signed-off-by: Vincent Stehlé <v-stehle@ti.com>
* | designware_i2c.h: Define IC_CLK only if not already defined in config fileArmando Visconti2012-12-11-0/+2
| | | | | | | | Signed-off-by: Armando Visconti <armando.visconti@st.com>
* | designware_i2c.h: Fixed the correct values for SCL low/high timeArmando Visconti2012-12-11-3/+3
| | | | | | | | Signed-off-by: Armando Visconti <armando.visconti@st.com>
* | designware_i2c: Fixed the setting of the i2c bus speedArmando Visconti2012-12-11-15/+13
| | | | | | | | | | | | | | | | There are three couple (hcnt/lcnt) of registers for each speed (SS/FS/HS). The driver needs to set the proper couple of regs according to what speed we are setting. Signed-off-by: Armando Visconti <armando.visconti@st.com>
* | designware_i2c: Added s/w generation of stop bitArmando Visconti2012-12-11-3/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the newer versions of designware i2c IP there is the possibility of configuring it with IC_EMPTYFIFO_HOLD_MASTER_EN=1, which basically requires the s/w to generate the stop bit condition directly, as the h/w will not automatically generate it when TX_FIFO is empty. To avoid generation of an extra 0x0 byte sent as data, the IC_STOP command must be sent along with the last IC_CMD. This patch always writes bit[9] of ic_data_cmd even in the older versions, assuming that it is a noop there. Signed-off-by: Armando Visconti <armando.visconti@st.com>
* | designware_i2c.c: Added the support for MULTI_BUSArmando Visconti2012-12-11-1/+81
| | | | | | | | | | | | | | This patch adds the capability to switch between 10 different I2C busses (from 0 to 9). Signed-off-by: Armando Visconti <armando.visconti@st.com>
* | drivers:i2c: Modify I2C driver for Exynos4Piotr Wilczek2012-12-11-7/+12
| | | | | | | | | | | | | | | | This patch modifies the S3C i2c driver to support both Exynos4 and Exynos5 Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> CC: Minkyu Kang <mk7.kang@samsung.com>
* | omap24xx_i2c: Handle OMAP5 like OMAP2,3,4Vincent Stehlé2012-12-11-5/+10
| | | | | | | | | | | | | | | | | | | | | | OMAP5 has 8b i2c data register field, like OMAP2, 3 and 4. Handle in the same way. This fixes the following error on OMAP5: OMAP5430 EVM # mmc rescan timed out in wait_for_bb: I2C_STAT=1410 twl6035: could not turn on LDO9. Signed-off-by: Vincent Stehlé <v-stehle@ti.com>
* | mxs: i2c: Implement algorithm to set up arbitrary i2c speedMarek Vasut2012-12-11-53/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This algorithm computes the values of TIMING{0,1,2} registers for the MX28 I2C block. This algorithm was derived by using a scope, but the result seems correct. The resulting values programmed into the registers do not correlate with the contents in datasheet. When using the values from the datasheet, the I2C clock were completely wrong. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Wolfgang Denk <wd@denx.de>
* | mxs: i2c: Restore speed setting after block resetMarek Vasut2012-12-11-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | The I2C block reset configures the I2C bus speed to strange value. Read the I2C speed from the block before reseting the block and restore it afterwards, so the I2C operates correctly. This issue can be replicated by doing unsuccessful I2C transfer, after such transfer finishes, the I2C block clock speed is misconfigured. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Heiko Schocher <hs@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com>
* | i2c: mxs: Fix TIMING2 register valueMarek Vasut2012-12-11-2/+2
| | | | | | | | | | | | | | | | | | | | | | According to FSL, the value in the TIMING2 register shall be 0x00300030 instead of what's written in the datasheet. This new value correlates with older STMP36xx datasheet. Issues were detected in Linux when this register was misconfigured, so write this correct value. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com>
* | i2c: mxs: Use i2c_set_bus_speed() in i2c_init()Marek Vasut2012-12-11-15/+1
| | | | | | | | | | | | | | | | | | Use i2c_set_bus_speed() in i2c_init() within the mxs i2c driver to avoid duplication of code. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com>
* | i2c: mxs: Implement i2c_get/set_bus_speed()Marek Vasut2012-12-11-0/+45
| | | | | | | | | | | | | | | | | | This patch implements the setup and retrieval functions for the I2C bus speed on the MXS I2C IP. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com>
* | i2c: mxs: Abstract out the MXS I2C speed setupMarek Vasut2012-12-11-20/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch pulls out the I2C speed setup from the i2c_init() call and implements the bus configuration lookup table with register values that needs to be programmed into the I2C IP to run at particular speed. This patch is a first step towards implementing run-time I2C bus speed configuration for the MXS I2C IP. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com>
* | i2c: Staticize local functions in mxc i2c driverMarek Vasut2012-12-11-2/+2
| | | | | | | | | | | | | | | | | | Some functions in the MXC i2c driver were not static, fix this by making them so. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Heiko Schocher <hs@denx.de> Cc: Stefano Babic <sbabic@denx.de>
* | soft_i2c: add necessary includes for AVR32Andreas Bießmann2012-12-11-0/+3
|/ | | | Signed-off-by: Andreas Bießmann <biessmann@corscience.de>
* Merge branch 'master' of git://git.denx.de/u-boot-armTom Rini2012-10-26-3/+0
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| * arm: Remove support for lpc2292Marek Vasut2012-10-26-3/+0
| | | | | | | | | | | | This stuff has been rotting in the tree for a year now. Remove it. Signed-off-by: Marek Vasut <marex@denx.de>
* | drivers/i2c/fsl_i2c.c: sparse fixKim Phillips2012-10-25-1/+1
|/ | | | | | | fsl_i2c.c:217:14: warning: symbol 'get_i2c_clock' was not declared. Should it be static? Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Acked-by: Heiko Schocher <hs@denx.de>
* i2c: sh_i2c: use setbits/clrbits macroTetsuyuki Kobayashi2012-10-16-4/+4
| | | | | | | Use setbits/clrbits macro when read-modify-write register. Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp> Acked-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
* i2c: sh_i2c.c: check error in i2c_read and i2c_writeTetsuyuki Kobayashi2012-10-16-18/+32
| | | | | | | | Before this patch, i2c_{read,write} always returned 0. Check TACK in i2c_raw_{read,write} so that i2c_{read,write} return non-zero when error. Acked-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
* i2c: sh_i2c: enable i2c_probeTetsuyuki Kobayashi2012-10-16-5/+27
| | | | | | | | | Before this patch i2c_probe() always returned 0 and "i2c probe" command did not work properly. Modify i2c_set_addr() to check TACK when waiting DTE and make i2c_probe() call this function. Acked-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
* i2c: sh_i2c.c: support I2C2, I2C3 and I2C4Tetsuyuki Kobayashi2012-10-16-0/+15
| | | | | | | sh_i2c.c support I2C0 and I2C1. This patch extends it to I2C4. Acked-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
* i2c: sh_i2c.c: adjust for SH73A0Tetsuyuki Kobayashi2012-10-16-0/+4
| | | | | | | | Adjust i2c_raw_read() in sh_i2c.c to work for SH73A0. After this patch, "i2c md" and "i2c mw" command on U-Boot work properly on KZM-A9-GT board. Acked-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
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