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Kernel: Add a class to wrap aarch64 MIDR_EL1

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We'll need part_num() to determine the MMIO address base. It's
0x3F000000 on rpi3 but 0xFE000000 on rpi4.
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Nico Weber 2021-09-12 09:42:27 -04:00 • committed by Brian Gianforcaro
parent 2dc02607ed
commit 3c6ad4c7db
4 changed files with 59 additions and 0 deletions
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3
Kernel/Prekernel/Arch/aarch64/init.cpp
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@ -5,10 +5,13 @@
*/
#include <AK/Types.h>
#include <Kernel/Prekernel/Arch/aarch64/MainIdRegister.h>
extern "C" [[noreturn]] void init();
extern "C" [[noreturn]] void init()
{
Prekernel::MainIdRegister id;
[[maybe_unused]] unsigned part_num = id.part_num();
for (;;) { }
}