u-boot.git/arch/powerpc/include/asm/fsl_i2c.h, branch main

powerpc: mpc83xx: Check the size of peripheral structs

2026-01-13T15:42:44Z

Peripheral registers on MPC83xx-series chips are declared in immap_83xx.h as a set of structs that ultimately fill the entire MMIO space of 1 MiB. This patch introduces a compile-time check of the size of each peripheral struct. The purpose of these checks is two-fold: 1. To quickly tell readers of the code the total size of each struct 2. To verify that the size does not change when a struct is edited If the size of a peripheral struct were to change by a few bytes due to an editing error, the result would be mayhem for all following peripherals, because all offsets would shift by the amount of the error. All new checks have been compile-tested. Signed-off-by: J. Neuschäfer

dm: i2c: use CONFIG_IS_ENABLED macro for DM_I2C/DM_I2C_GPIO

2021-02-21T05:08:00Z

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 Reviewed-by: Simon Glass Signed-off-by: Igor Opaniuk Reviewed-by: Tom Rini Reviewed-by: Priyanka Jain

common: Drop image.h from common header

2020-05-18T21:33:33Z

Move this uncommon header out of the common header. Signed-off-by: Simon Glass

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07T13:34:12Z

When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini

dm: fsl_i2c: Enable DM for FSL I2C

2016-05-17T06:28:55Z

Signed-off-by: Mario Six

dm: fsl_i2c: Rename I2C register structure

2016-05-17T06:28:52Z

Signed-off-by: Mario Six

Add more SPDX-License-Identifier tags

2016-01-19T13:31:21Z

In a number of places we had wordings of the GPL (or LGPL in a few cases) license text that were split in such a way that it wasn't caught previously. Convert all of these to the correct SPDX-License-Identifier tag. Signed-off-by: Tom Rini

fsl_i2c: add workaround for the erratum I2C A004447

2013-08-20T09:15:31Z

This workaround is for the erratum I2C A004447. Device reference manual provides a scheme that allows the I2C master controller to generate nine SCL pulses, which enable an I2C slave device that held SDA low to release SDA. However, due to this erratum, this scheme no longer works. In addition, when I2C is used as a source of the PBL, the state machine is not able to recover. At the same time, delete the reduplicative definition of SVR_VER and SVR_REV. The SVR_REV is the low 8 bits rather than the low 16 bits of svr. And we use the CONFIG_SYS_FSL_A004447_SVR_REV macro instead of hard-code value 0x10, 0x11 and 0x20. The CONFIG_SYS_FSL_A004447_SVR_REV = 0x00 represents that one version of platform has this I2C errata. So enable this errata by IS_SVR_REV(svr, maj, min) function. Signed-off-by: Zhao Chenhui Signed-off-by: Chunhe Lan Cc: Scott Wood Cc: Heiko Schocher

Move arch/ppc to arch/powerpc

2010-04-21T21:42:38Z

As discussed on the list, move "arch/ppc" to "arch/powerpc" to better match the Linux directory structure. Please note that this patch also changes the "ppc" target in MAKEALL to "powerpc" to match this new infrastructure. But "ppc" is kept as an alias for now, to not break compatibility with scripts using this name. Signed-off-by: Stefan Roese Acked-by: Wolfgang Denk Acked-by: Detlev Zundel Acked-by: Kim Phillips Cc: Peter Tyser Cc: Anatolij Gustschin