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Minor information update regarding previously unknown mysteries

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This commit is contained in:
hexkyz
2019-08-22 20:52:40 +01:00
parent 25218795b4
commit 0c3a294cbe
10 changed files with 76 additions and 21 deletions
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24
exosphere/src/bootup.c
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@@ -140,28 +140,26 @@ void bootup_misc_mmio(void) {
APB_MISC_SECURE_REGS_APB_SLAVE_SECURITY_ENABLE_REG2_0 = sec_disable_2;
}
/* Reset Translation Enable Registers. */
/* Reset Translation Enable registers. */
MAKE_MC_REG(MC_SMMU_TRANSLATION_ENABLE_0) = 0xFFFFFFFF;
MAKE_MC_REG(MC_SMMU_TRANSLATION_ENABLE_1) = 0xFFFFFFFF;
MAKE_MC_REG(MC_SMMU_TRANSLATION_ENABLE_2) = 0xFFFFFFFF;
MAKE_MC_REG(MC_SMMU_TRANSLATION_ENABLE_3) = 0xFFFFFFFF;
MAKE_MC_REG(MC_SMMU_TRANSLATION_ENABLE_4) = 0xFFFFFFFF;
/* TODO: What are these MC reg writes? */
/* Set SMMU ASID security registers. */
if (exosphere_get_target_firmware() >= ATMOSPHERE_TARGET_FIRMWARE_400) {
MAKE_MC_REG(0x038) = 0xE;
MAKE_MC_REG(MC_SMMU_ASID_SECURITY) = 0xE;
} else {
MAKE_MC_REG(0x038) = 0x0;
MAKE_MC_REG(MC_SMMU_ASID_SECURITY) = 0x0;
}
MAKE_MC_REG(0x03C) = 0;
/* MISC registers. */
MAKE_MC_REG(0x9E0) = 0;
MAKE_MC_REG(0x9E4) = 0;
MAKE_MC_REG(0x9E8) = 0;
MAKE_MC_REG(0x9EC) = 0;
MAKE_MC_REG(0x9F0) = 0;
MAKE_MC_REG(0x9F4) = 0;
MAKE_MC_REG(MC_SMMU_ASID_SECURITY_1) = 0;
MAKE_MC_REG(MC_SMMU_ASID_SECURITY_2) = 0;
MAKE_MC_REG(MC_SMMU_ASID_SECURITY_3) = 0;
MAKE_MC_REG(MC_SMMU_ASID_SECURITY_4) = 0;
MAKE_MC_REG(MC_SMMU_ASID_SECURITY_5) = 0;
MAKE_MC_REG(MC_SMMU_ASID_SECURITY_6) = 0;
MAKE_MC_REG(MC_SMMU_ASID_SECURITY_7) = 0;
if (exosphere_get_target_firmware() >= ATMOSPHERE_TARGET_FIRMWARE_400) {
MAKE_MC_REG(MC_SMMU_PTB_ASID) = 0;