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Ethernet on K64F is connected via Logical Bus Master 3. Section 19.3.8 of K64F reference manual establishes bits 20-18 (M3UM) on page 427 as "Bus Master 3 User Mode Access Control". To fix RWX user mode access via Bus Master 3 when MPU is enabled, we need to add these bits to the MPU region descriptors. This fixes ETH0 on K64F when MPU is enabled. Fix recommended by Maureen Helm <maureen.helm@nxp.com> Signed-off-by: Michael Scott <michael.scott@linaro.org> |
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arc | ||
arm | ||
nios2 | ||
riscv32 | ||
x86 | ||
xtensa | ||
cpu.h |