summaryrefslogtreecommitdiff
path: root/drivers/i2c
AgeCommit message (Collapse)AuthorFilesLines
2021-07-28i2c: Create a new Kconfig for I2CSimon Glass1-2/+24
At present we have CONFIG_SPL_I2C but not CONFIG_I2C. The reason CONFIG_I2C is not strictly necessary is that: a) We have CONFIG_SYS_I2C_LEGACY and CONFIG_DM_I2C for the two possible i2c stacks b) In U-Boot proper, we always build drivers/i2c/ regardless of the options Still, it is better to have CONFIG_I2C - it makes U-Boot proper similar to SPL/TPL, so we can (in a future commit) simplify the Makefile rules. Enable it by default, since as above, we have separate options (SYS_I2C_LEGACY and DM_I2C) to control whether it is 'really' enabled. Once we have migrated I2C to driver model, we can drop SYS_I2C_LEGACY and make DM_I2C become I2C. For now, this lets us simplify the Makefile rules. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de>
2021-07-28i2c: Rename CONFIG_SYS_I2C to CONFIG_SYS_I2C_LEGACYSimon Glass1-1/+1
It is quite confusing that CONFIG_SYS_I2C selects the legacy I2C and CONFIG_DM_I2C selects the current I2C. The deadline to migrate I2C is less than a year away. Also we want to have a CONFIG_I2C for U-Boot proper just like we have CONFIG_SPL_I2C for SPL, so we can simplify the Makefile rules. Rename this symbol so it is clear it is going away. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de>
2021-07-28Rename GPIO_SUPPORT to GPIOSimon Glass1-1/+1
Rename these options so that CONFIG_IS_ENABLED can be used with them. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-07-08arm: Remove spear600 boards and the rest of SPEAr supportTom Rini2-21/+0
These boards have not been converted to CONFIG_DM_USB by the deadline and is also missing conversion to CONFIG_DM. Remove them. As this is the last of the SPEAr platforms, so remove the rest of the remaining support as well. Cc: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2021-07-08arm: Remove spear320 boardsTom Rini1-1/+1
These boards have not been converted to CONFIG_DM_USB by the deadline and is also missing conversion to CONFIG_DM. Remove them. As this is also the last SPEAR3XX platform, remove that symbol as well. Cc: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2021-07-08arm: Remove spear310 boardsTom Rini1-2/+2
These boards have not been converted to CONFIG_DM_USB by the deadline and is also missing conversion to CONFIG_DM. Remove them. Cc: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2021-07-08arm: Remove spear300 boardsTom Rini1-1/+1
These boards have not been converted to CONFIG_DM_USB by the deadline and is also missing conversion to CONFIG_DM. Remove them. Cc: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2021-07-07Merge tag 'dm-pull-6jul21' of https://source.denx.de/u-boot/custodians/u-boot-dmTom Rini3-0/+6
various minor sandbox improvements
2021-07-06Kconfig: convert CONFIG_SYS_I2C_LPC32XXTrevor Woerner1-0/+6
Convert the CONFIG_SYS_I2C_LPC32XX configuration symbol from an include directive to a Kconfig value. Signed-off-by: Trevor Woerner <twoerner@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2021-07-06lpc32xx: i2c: finish DM/OF codeTrevor Woerner1-1/+7
Add the of_match/compatible string to the lpc32xx i2c driver so it works correctly with device-tree. Signed-off-by: Trevor Woerner <twoerner@gmail.com>
2021-07-06lpc32xx: i2c: fix base addressTrevor Woerner1-5/+1
The lpc32xx driver was not obtaining the per-device base address correctly from the device tree. Fix the FIXME in order to get the correct base address. Signed-off-by: Trevor Woerner <twoerner@gmail.com>
2021-07-06lpc32xx: i2c: remove unused defineTrevor Woerner1-1/+0
The LPC32XX_I2C_STAT_DRMI is not used anywhere so remove it. Signed-off-by: Trevor Woerner <twoerner@gmail.com>
2021-07-06i2c: synquacer: SNI Synquacer I2C controllerJassi Brar3-0/+346
Add driver for class of I2C controllers found on Socionext Synquacer platform. Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2021-07-06dm: define LOG_CATEGORY for all uclassPatrick Delaunay3-0/+6
Define LOG_CATEGORY for all uclass to allow filtering with log command. Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2021-04-13gpio: i2c-gpio: Drop use of dm_gpio_set_dir()Simon Glass1-10/+9
This is the only driver that uses this function. Update it to use the alternative which is dm_gpio_clrset_flags(). Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Harm Berntsen <harm.berntsen@nedap.com>
2021-04-10arm: Remove vexpress_ca15_tc2 boardTom Rini1-1/+1
This board has not been converted to CONFIG_DM_MMC by the deadline. Remove it. Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Tom Rini <trini@konsulko.com>
2021-03-26Revert "sandbox: Disable I2C emulators in SPL"Simon Glass1-2/+0
With recent changes this can be supported again. Add it back. This reverts commit d85f2c4f2970d0ec2f5f075de734afd11200d153. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2021-03-26sandbox: i2c: Support i2c emulation with of-platdataSimon Glass1-2/+15
At present the i2c emulators require access to the devicetree, which is not possible (by design) with of-platdata. Add a way for drivers to record the of-platdata index of their emulator, so that we can still find the emulator. This allows i2c emulation to work with of-platdata. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2021-03-26sandbox: i2c: Move platdata structs to header filesSimon Glass1-12/+1
At present the structs used by these drivers are declared in the C files and so are not accessible to dtoc. Move them to header files, as required. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2021-03-22sandbox: i2c: Rename driver names to work with of-platdataSimon Glass1-2/+2
Some of these do not follow the rules. Make sure the driver name matches the compatible string in all cases. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-02-23Merge tag 'xilinx-for-v2021.04-rc3' of ↵Tom Rini1-0/+7
https://gitlab.denx.de/u-boot/custodians/u-boot-microblaze Xilinx changes for v2021.04-rc3 qspi: - Support for dual/quad mode - Fix speed handling clk: - Add clock enable function for zynq/zynqmp/versal gem: - Enable clock for Versal - Fix error path - Fix mdio deregistration path fpga: - Fix buffer alignment for ZynqMP xilinx: - Fix reset reason clearing in ZynqMP - Show silicon version in SPL for Zynq/ZynqMP - Fix DTB selection for ZynqMP - Rename zc1275 to zcu1275 to match DT name
2021-02-23i2c: i2c_cdns: Enable i2c clockT Karthik Reddy1-0/+7
Enable i2c controller clock from driver probe function by calling clk_enable(). Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Heiko Schocher <hs@denx.de>
2021-02-21dm: i2c: use CONFIG_IS_ENABLED macro for DM_I2C/DM_I2C_GPIOIgor Opaniuk9-42/+42
Use CONFIG_IS_ENABLED() macro, which provides more convenient way to check $(SPL)DM_I2C/$(SPL)DM_I2C_GPIO configs for both SPL and U-Boot proper. CONFIG_IS_ENABLED(DM_I2C) expands to: - 1 if CONFIG_SPL_BUILD is undefined and CONFIG_DM_I2C is set to 'y', - 1 if CONFIG_SPL_BUILD is defined and CONFIG_SPL_DM_I2C is set to 'y', - 0 otherwise. All occurences were replaced automatically using these bash cmds: $ find . -type f -exec sed -i 's/ifndef CONFIG_DM_I2C/if !CONFIG_IS_ENABLED(DM_I2C)/g' {} + $ find . -type f -exec sed -i 's/ifdef CONFIG_DM_I2C/if CONFIG_IS_ENABLED(DM_I2C)/g' {} + $ find . -type f -exec sed -i 's/defined(CONFIG_DM_I2C)/CONFIG_IS_ENABLED(DM_I2C)/g' {} + $ find . -type f -exec sed -i 's/ifndef CONFIG_DM_I2C_GPIO/if !CONFIG_IS_ENABLED(DM_I2C_GPIO)/g' {} + $ find . -type f -exec sed -i 's/ifdef CONFIG_DM_I2C_GPIO/if CONFIG_IS_ENABLED(DM_I2C_GPIO)/g' {} + $ find . -type f -exec sed -i 's/defined(CONFIG_DM_I2C_GPIO)/CONFIG_IS_ENABLED(DM_I2C_GPIO)/g' {} + Reviewed-by: Heiko Schocher <hs@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Igor Opaniuk <igor.opaniuk@foundries.io> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-02-21dm: i2c: allow disabling driver model in SPLIgor Opaniuk2-2/+23
At present if U-Boot proper uses driver model for I2C, then SPL has to also. While this is desirable, it places a significant barrier to moving to driver model in some cases. For example, with a space-constrained SPL it may be necessary to enable CONFIG_SPL_OF_PLATDATA which involves adjusting some drivers. This patch introduces a separate Kconfig symbols for enabling DM_I2C and DM_I2C_GPIO support in SPL. This will also help to get away from dirty workarounds to achieve non-DM I2C support for SPL, which is currently used in some board header files like: ifdef CONFIG_SPL_BUILD undef CONFIG_DM_I2C endif Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de> Signed-off-by: Igor Opaniuk <igor.opaniuk@foundries.io> Reviewed-by: Tom Rini <trini@konsulko.com>
2021-02-21i2c: at91: fix crash when using 'i2c probe'Eugen Hristev1-0/+4
When issuing 'i2c probe', the driver was crashing, because at probe there is a request with zero length buffer to write to i2c bus. The xfer_msg function assumes the buffer is always there, and never checks for the buffer length. => i2c dev 0 Setting bus to 0 => i2c probe Valid chip addresses: data abort pc : [<7ffa97dc>] lr : [<7ffa96f8>] reloc pc : [<66f277dc>] lr : [<66f276f8>] sp : 7fb7c110 ip : 7ff87a28 fp : 7ff99938 r10: 00000002 r9 : 7fb7dec0 r8 : 00000000 r7 : e181c600 r6 : 7fb88c20 r5 : 00000000 r4 : 7fb7c128 r3 : 00000000 r2 : 00000001 r1 : 00000000 r0 : 00000009 Flags: nZCv IRQs off FIQs off Mode SVC_32 Code: eb0092f4 e1a00005 e8bd81f0 e594300c (e5d33000) Resetting CPU ... Fixes: 8800e0fa20 ("i2c: atmel: add i2c driver") Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
2021-02-21i2c: i2c-gpio: Fix GPIO outputHarm Berntsen1-7/+10
The dm_gpio_set_dir_flags function cannot be used to update the configuration of a GPIO pin because it does a bitwise OR with the existing flags. Looks like commit 788ea834124b ("gpio: add function _dm_gpio_set_dir_flags") has introduced this behaviour and the i2c-gpio driver has been broken since. Signed-off-by: Harm Berntsen <harm.berntsen@nedap.com> CC: Heiko Schocher <hs@denx.de> CC: Patrick Delaunay <patrick.delaunay@st.com>
2021-02-15Merge branch '2021-02-02-drop-asm_global_data-when-unused'Tom Rini18-0/+18
- Merge the patch to take <asm/global_data.h> out of <common.h>
2021-02-15arm: Remove ls2080a_simu boardTom Rini1-2/+2
This board has not been converted to CONFIG_DM_MMC by the deadline of v2019.04, which is almost two years ago. In addition there are other DM migrations it is also missing. Remove it. Cc: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com> Cc: Priyanka Jain <priyanka.jain@nxp.com> Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-02-02common: Drop asm/global_data.h from common headerSimon Glass18-0/+18
Move this out of the common header and include it only where needed. In a number of cases this requires adding "struct udevice;" to avoid adding another large header or in other cases replacing / adding missing header files that had been pulled in, very indirectly. Finally, we have a few cases where we did not need to include <asm/global_data.h> at all, so remove that include. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com>
2021-01-31sandbox: Disable I2C emulators in SPLSimon Glass1-0/+2
These cannot work with of-platdata since they currently need the devicetree at runtime. Disable the emulators and the sandbox I2C driver that needs them. We can enable these later, if needed for testing. Switch the of_plat_parent test over to use a simple bus instead. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de>
2021-01-31i2c: desigware: Add an alias for Intel Apollo LakeSimon Glass1-0/+2
Add an alias so that this driver can be used in TPL on coral. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de>
2021-01-26i2c: mvtwsi: sunxi: update macroJernej Skrabec1-1/+1
While currently none of the newer Allwinner SoCs currently has I2C support implemented in U-Boot, this will change soon. mvtwsi driver is good as it is for them except one macro. Update it to be ready once I2C support lands for those SoCs. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Reviewed-by: Heiko Schocher <hs@denx.de> Reviewed-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-01-13i2c: stm32f7_i2c: migrate trace to dev and log macroPatrick Delaunay1-37/+37
Change debug to dev_dbg macro and define LOG_CATEGORY. Remove the "%s:" __func__ header as it is managed by dev macro (dev->name is displayed) or log macro (CONFIG_LOGF_FUNC). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Heiko Schocher <hs@denx.de>
2021-01-06Merge tag 'dm-pull-5jan21' of git://git.denx.de/u-boot-dm into nextTom Rini4-8/+5
Driver model: make some udevice fields private Driver model: Rename U_BOOT_DEVICE et al. dtoc: Tidy up and add more tests ns16550 code clean-up x86 and sandbox minor fixes for of-platdata dtoc prepration for adding build-time instantiation
2021-01-06Merge tag 'v2021.01-rc5' into nextTom Rini1-1/+1
Prepare v2021.01-rc5 Signed-off-by: Tom Rini <trini@konsulko.com>
2021-01-05dm: Rename U_BOOT_DRIVER_ALIAS to DM_DRIVER_ALIASSimon Glass1-1/+1
We use the U_BOOT_ prefix (i.e. U_BOOT_DRIVER) to declare a driver but in every other case we just use DM_. Update the alias macros to use the DM_ prefix. We could perhaps rename U_BOOT_DRIVER() to DM_DRIVER(), but this macro is widely used and there is at least some benefit to indicating it us a U-Boot driver, particularly for code ported from Linux. So for now, let's keep that name. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-01-05dm: core: Use dev_has_ofnode() instead of dev_of_valid()Simon Glass2-3/+3
We have two functions which do the same thing. Standardise on dev_has_ofnode() since there is no such thing as an 'invalid' ofnode in normal operation: it is either null or missing. Also move the functions into one place. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2021-01-05sandbox: i2c: Move priv into a header fileSimon Glass1-4/+1
Move this struct into a header file so that dtoc can include it in its dt-platdata.c file. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-26i2c: mxc_i2c: improve error message readabilityMarc Ferland1-1/+1
Use 0x%2lx to print the i2c bus base address in hexadecimal format instead of printing as an integer. Signed-off-by: Marc Ferland <ferlandm@amotus.ca> Reviewed-by: Fabio Estevam <festevam@gmail.com>
2020-12-19i2c: Update for new sequence numbersSimon Glass6-80/+8
Use the new sequence number in all cases. Drop the logic to check for a valid number in designware_i2c, since it will always be valid. Also drop the numbering in the uclass, since we can rely on driver model giving us the right sequence numbers. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-19octeon: Don't attempt to set the sequence numberSimon Glass1-1/+0
Several Octeon drivers operate by setting the sequence number of their device. This should not be needed with the new sequence number setup. Also it is not permitted. Drop it. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-19dm: core: Update uclass_find_next_free_req_seq() argsSimon Glass1-1/+7
At present this is passed a uclass ID and it has to do a lookup. The callers all have the uclass pointer, except for the I2C uclass where the code will soon be deleted. Update the argument to a uclass * instead of an ID since it is more efficient. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-19dm: Avoid accessing seq directlySimon Glass11-22/+27
At present various drivers etc. access the device's 'seq' member directly. This makes it harder to change the meaning of that member. Change access to go through a function instead. The drivers/i2c/lpc32xx_i2c.c file is left unchanged for now. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-14dm: treewide: Rename ..._platdata variables to just ..._platSimon Glass2-9/+9
Try to maintain some consistency between these variables by using _plat as a suffix for them. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-14dm: treewide: Update 'auto' declarations to be on one lineSimon Glass1-2/+1
Fix up the code style for those declarations that should now fit onto one line, which is all of them that currently do not. This is needed for dtoc to detect the structs correctly, at present. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-14dm: treewide: Rename ofdata_to_platdata() to of_to_plat()Simon Glass21-41/+41
This name is far too long. Rename it to remove the 'data' bits. This makes it consistent with the platdata->plat rename. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-14dm: treewide: Rename dev_get_platdata() to dev_get_plat()Simon Glass2-7/+7
Rename this to be consistent with the change from 'platdata'. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-14dm: treewide: Rename 'platdata' variables to just 'plat'Simon Glass7-29/+29
We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename auto_alloc_size members to be shorterSimon Glass41-48/+48
This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-11-28i2c: ocores: add i2c driver for OpenCores I2C controllerPragnesh Patel3-0/+645
Add support for the OpenCores I2C controller IP core (See http://www.opencores.org/projects.cgi/web/i2c/overview). This driver implementation is inspired from the Linux OpenCores I2C driver available. Thanks to Peter Korsgaard <peter@korsgaard.com> for writing Linux OpenCores I2C driver. Signed-off-by: Pragnesh Patel <pragnesh.patel@sifive.com> Reviewed-by: Rick Chen <rick@andestech.com>
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-15 18:28:22 +0300