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884fdaa53b
New ExynosAuto series GPIO have a different register structure. In the existing Exynos series, EINT control register is enumerated after a specific offset (e.g EXYNOS_GPIO_ECON_OFFSET, EXYNOS_GPIO_EMASK_OFFSET). However, from ExynosAutov920 SoC, the register that controls EINT belongs to each GPIO bank, and each GPIO bank has 0x1000 align. This is a structure to protect the GPIO bank using S2MPU in VM environment, and will only be applied in ExynosAuto series SoCs. -------------------------------------------------------------- | Original Exynos | ExynosAuto | |------------------------------------------------------------| | 0x0 GPIO_CON | 0x0 GPIO_CON | | 0x4 GPIO_DAT | 0x4 GPIO_DAT | | 0x8 GPIO_PUD | 0x8 GPIO_PUD | | 0xc GPIO_DRV | 0xc GPIO_DRV | | 0x10 GPIO_CONPDN | 0x10 GPIO_CONPDN | | 0x14 GPIO_PUDPDN | 0x14 GPIO_PUDPDN | |----------------------------| 0x18 EINT_CON (per_bank) | | ... | 0x1c EINT_FLTCON0 (per_bank) | | ... | 0x20 EINT_FLTCON1 (per_bank) | | ... | 0x24 EINT_MASK (per_bank) | | ... | 0x28 EINT_PEND (per_bank) | |----------------------------|-------------------------------| | 0x700 EINT_CON (global) | ... | | 0x800 EINT_FLTCON (global) | ... | | 0x900 EINT_MASK (global) | ... | | 0xa00 EINT_FEND (global) | ... | -------------------------------------------------------------- Signed-off-by: Jaewon Kim <jaewon02.kim@samsung.com> Link: https://lore.kernel.org/r/20231211114145.106255-2-jaewon02.kim@samsung.com Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.