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fusee-cpp: Implement mbist workaround

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This commit is contained in:
Michael Scire 2021-08-21 15:49:36 -07:00 • committed by SciresM
parent 3e81796db7
commit c333a84b6b
19 changed files with 847 additions and 35 deletions
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68
libraries/libexosphere/source/clkrst/clkrst_api.cpp
View file

@ -62,11 +62,21 @@ namespace ams::clkrst {
.reset_offset = CLK_RST_CONTROLLER_RST_DEVICES_##_REG_, \
.clk_enb_offset = CLK_RST_CONTROLLER_CLK_OUT_ENB_##_REG_, \
.clk_src_offset = CLK_RST_CONTROLLER_CLK_SOURCE_##_NAME_, \
.index = CLK_RST_CONTROLLER_CLK_ENB_##_NAME_##_INDEX, \
.index = CLK_RST_CONTROLLER_CLK_ENB_##_NAME_##_INDEX, \
.clk_src = CLK_RST_CONTROLLER_CLK_SOURCE_##_NAME_##_##_NAME_##_CLK_SRC_##_CLK_, \
.clk_div = _DIV_, \
}
#define DEFINE_CLOCK_PARAMETERS_WITHOUT_CLKDIV(_VARNAME_, _REG_, _NAME_) \
constexpr inline const ClockParameters _VARNAME_ = { \
.reset_offset = CLK_RST_CONTROLLER_RST_DEVICES_##_REG_, \
.clk_enb_offset = CLK_RST_CONTROLLER_CLK_OUT_ENB_##_REG_, \
.clk_src_offset = 0, \
.index = CLK_RST_CONTROLLER_CLK_ENB_##_NAME_##_INDEX, \
.clk_src = 0, \
.clk_div = 0, \
}
DEFINE_CLOCK_PARAMETERS(UartAClock, L, UARTA, PLLP_OUT0, 0);
DEFINE_CLOCK_PARAMETERS(UartBClock, L, UARTB, PLLP_OUT0, 0);
DEFINE_CLOCK_PARAMETERS(UartCClock, H, UARTC, PLLP_OUT0, 0);
@ -74,6 +84,14 @@ namespace ams::clkrst {
DEFINE_CLOCK_PARAMETERS(I2c5Clock, H, I2C5, CLK_M, 0);
DEFINE_CLOCK_PARAMETERS(ActmonClock, V, ACTMON, CLK_M, 0);
DEFINE_CLOCK_PARAMETERS(Host1xClock, L, HOST1X, PLLP_OUT0, 3);
DEFINE_CLOCK_PARAMETERS(TsecClock, U, TSEC, PLLP_OUT0, 2);
DEFINE_CLOCK_PARAMETERS(Sor1Clock, X, SOR1, PLLP_OUT0, 2);
DEFINE_CLOCK_PARAMETERS_WITHOUT_CLKDIV(SorSafeClock, Y, SOR_SAFE);
DEFINE_CLOCK_PARAMETERS_WITHOUT_CLKDIV(Sor0Clock, X, SOR0);
DEFINE_CLOCK_PARAMETERS_WITHOUT_CLKDIV(KfuseClock, H, KFUSE);
}
void SetRegisterAddress(uintptr_t address) {
@ -108,8 +126,56 @@ namespace ams::clkrst {
EnableClock(I2c5Clock);
}
void EnableHost1xClock() {
EnableClock(Host1xClock);
}
void EnableTsecClock() {
EnableClock(TsecClock);
}
void EnableSorSafeClock() {
EnableClock(SorSafeClock);
}
void EnableSor0Clock() {
EnableClock(Sor0Clock);
}
void EnableSor1Clock() {
EnableClock(Sor1Clock);
}
void EnableKfuseClock() {
EnableClock(KfuseClock);
}
void DisableI2c1Clock() {
DisableClock(I2c1Clock);
}
void DisableHost1xClock() {
DisableClock(Host1xClock);
}
void DisableTsecClock() {
DisableClock(TsecClock);
}
void DisableSorSafeClock() {
DisableClock(SorSafeClock);
}
void DisableSor0Clock() {
DisableClock(Sor0Clock);
}
void DisableSor1Clock() {
DisableClock(Sor1Clock);
}
void DisableKfuseClock() {
DisableClock(KfuseClock);
}
}

13
libraries/libexosphere/source/fuse/fuse_api.cpp
View file

@ -432,6 +432,19 @@ namespace ams::fuse {
return reg::HasValue(GetChipRegistersCommon().FUSE_SECURITY_MODE, FUSE_REG_BITS_ENUM(SECURITY_MODE_SECURITY_MODE, ENABLED));
}
bool GetSecureBootKey(void *dst) {
/* Get the sbk from fuse data. */
bool valid = false;
for (size_t i = 0; i < 4; ++i) {
const u32 key_word = GetChipRegistersCommon().FUSE_PRIVATE_KEY[i];
static_cast<u32 *>(dst)[i] = key_word;
valid |= key_word != 0xFFFFFFFF;
}
return valid;
}
void ConfigureFuseBypass() {
/* Make the fuse registers visible. */
clkrst::SetFuseVisibility(true);

33
libraries/libexosphere/source/tsec/tsec_api.cpp
View file

@ -19,8 +19,41 @@ namespace ams::tsec {
namespace {
enum TsecResult {
TsecResult_Success = 0xB0B0B0B0,
TsecResult_Failure = 0xD0D0D0D0,
};
bool RunFirmwareImpl(const void *fw, size_t fw_size) {
/* Enable relevant clocks. */
clkrst::EnableHost1xClock();
clkrst::EnableTsecClock();
clkrst::EnableSorSafeClock();
clkrst::EnableSor0Clock();
clkrst::EnableSor1Clock();
clkrst::EnableKfuseClock();
/* Disable clocks once we're done. */
ON_SCOPE_EXIT {
clkrst::DisableHost1xClock();
clkrst::DisableTsecClock();
clkrst::DisableSorSafeClock();
clkrst::DisableSor0Clock();
clkrst::DisableSor1Clock();
clkrst::DisableKfuseClock();
};
/* TODO */
AMS_UNUSED(fw, fw_size);
return true;
}
}
bool RunTsecFirmware(const void *fw, size_t fw_size) {
/* TODO */
AMS_UNUSED(fw, fw_size);
return RunFirmwareImpl(fw, fw_size);
}
void Lock() {