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https://github.com/zephyrproject-rtos/zephyr
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21d2742ab9
There are some drivers like NXP SDMA that need a NonCacheable data region to put data like channel control or buffer descriptors. So far, we haven't added such a section because the linker created one default orphan section at the end of the data section. But this generates a warning in the build system: xtensa-nxp_imx8m_adsp_zephyr-elf/bin/ld.bfd: warning: orphan section NonCacheable' from modules/hal_nxp/libmodules__hal_nxp.a(fsl_sdma.c.obj)' being placed in section `NonCacheable' So fix this by explicitly define a NonCacheable area at the end of data section. This works because imx8mp cache attributes are _memmap_cacheattr_imx8_wt_allvalid = 0x22212222 and the area where the NonCacheable section is allocated is write-through. So all the configuration for the SDMA core is not-cached at write. Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com> |
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| .. | ||
| imx6sx | ||
| imx7d | ||
| imx8 | ||
| imx8m | ||
| imx8ulp | ||
| imx8x | ||
| imx9 | ||
| CMakeLists.txt | ||
| Kconfig | ||
| Kconfig.defconfig | ||
| Kconfig.soc | ||
| soc.yml | ||