OmniNX/Atmosphere
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Cleanup FUSE, TSEC and SE code and add KFUSE state check during TSEC initialization (thanks @CTCaer).

Browse Source
This commit is contained in:
hexkyz
2019-12-31 17:59:15 +00:00
parent 18d998034d
commit b89f0e45ec
50 changed files with 4167 additions and 3017 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
exosphere/lp0fw/src/fuse.c
View File

@@ -29,7 +29,7 @@ bool fuse_check_downgrade_status(void) {
}
void fuse_disable_programming(void) {
FUSE_REGS->FUSE_DIS_PGM = 1;
FUSE_REGS->FUSE_DISABLEREGPROGRAM = 1;
}
static fuse_bypass_data_t g_fuse_bypass_entries[NUM_FUSE_BYPASS_ENTRIES] = {
@@ -37,13 +37,14 @@ static fuse_bypass_data_t g_fuse_bypass_entries[NUM_FUSE_BYPASS_ENTRIES] = {
};
void fuse_configure_fuse_bypass(void) {
/* Enable fuses in CAR? This seems to affect fuse data visibility. */
CLK_RST_CONTROLLER_MISC_CLK_ENB_0 |= 0x10000000;
/* Make all fuse registers visible. */
clkrst_enable_fuse_regs(true);
/* Configure bypass/override, only if programming is allowed. */
if (!(FUSE_REGS->FUSE_DIS_PGM & 1)) {
/* Enable write access. */
FUSE_REGS->FUSE_WRITE_ACCESS = (FUSE_REGS->FUSE_WRITE_ACCESS & ~0x1) | 0x10000;
/* Configure bypass/override, only if programming is allowed. */
if (!(FUSE_REGS->FUSE_DISABLEREGPROGRAM & 1)) {
/* Enable write access and flush status. */
FUSE_REGS->FUSE_WRITE_ACCESS_SW = (FUSE_REGS->FUSE_WRITE_ACCESS_SW & ~0x1) | 0x10000;
/* Enable fuse bypass config. */
FUSE_REGS->FUSE_FUSEBYPASS = 1;
@@ -53,7 +54,7 @@ void fuse_configure_fuse_bypass(void) {
}
/* Disable fuse write access. */
FUSE_REGS->FUSE_WRITE_ACCESS |= 1;
FUSE_REGS->FUSE_WRITE_ACCESS_SW |= 1;
/* Enable fuse bypass config. */
/* I think this is a bug, and Nintendo meant to write 0 here? */
@@ -63,7 +64,7 @@ void fuse_configure_fuse_bypass(void) {
/* I have no idea why this happens. What? */
/* This is probably also either a bug or does nothing. */
/* Is this bit even clearable? */
FUSE_REGS->FUSE_DIS_PGM &= 0xFFFFFFFE;
FUSE_REGS->FUSE_DISABLEREGPROGRAM &= 0xFFFFFFFE;
/* Restore saved private key disable bit. */
FUSE_REGS->FUSE_PRIVATEKEYDISABLE |= (APBDEV_PMC_SECURE_SCRATCH21_0 & 0x10);
@@ -71,5 +72,4 @@ void fuse_configure_fuse_bypass(void) {
/* Lock private key disable secure scratch. */
APBDEV_PMC_SEC_DISABLE2_0 |= 0x4000000;
}
}
}