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fusee-cpp: a little more init in SecureInitialize

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Michael Scire 2021-08-21 20:45:57 -07:00 • committed by SciresM
parent 53ede217a5
commit c91f95e8f6
4 changed files with 62 additions and 2 deletions
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46
fusee_cpp/program/source/fusee_secure_initialize.cpp
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@ -23,6 +23,7 @@ namespace ams::nxboot {
constexpr inline const uintptr_t CLKRST = secmon::MemoryRegionPhysicalDeviceClkRst.GetAddress();
constexpr inline const uintptr_t PMC = secmon::MemoryRegionPhysicalDevicePmc.GetAddress();
constexpr inline const uintptr_t MC = secmon::MemoryRegionPhysicalDeviceMemoryController.GetAddress();
constexpr inline const uintptr_t APB = secmon::MemoryRegionPhysicalDeviceApbMisc.GetAddress();
constexpr inline const uintptr_t AHB = AHB_ARBC(0);
constexpr inline const uintptr_t I2S = I2S_REG(0);
@ -164,6 +165,34 @@ namespace ams::nxboot {
reg::ReadWrite(CLKRST + CLK_RST_CONTROLLER_CLK_SOURCE_NVENC, CLK_RST_REG_BITS_ENUM(CLK_SOURCE_NVENC_NVENC_CLK_SRC, PLLP_OUT0));
}
void EnableArc() {
/* Enable clocks for EMC/MC, using PLLP_OUT0. */
reg::ReadWrite(CLKRST + CLK_RST_CONTROLLER_CLK_SOURCE_EMC, CLK_RST_REG_BITS_ENUM(CLK_SOURCE_EMC_EMC_2X_CLK_SRC, PLLP_OUT0));
reg::ReadWrite(CLKRST + CLK_RST_CONTROLLER_CLK_ENB_H_SET, CLK_RST_REG_BITS_ENUM(CLK_ENB_H_CLK_ENB_EMC, ENABLE));
reg::ReadWrite(CLKRST + CLK_RST_CONTROLLER_CLK_ENB_H_SET, CLK_RST_REG_BITS_ENUM(CLK_ENB_H_CLK_ENB_MEM, ENABLE));
reg::ReadWrite(CLKRST + CLK_RST_CONTROLLER_CLK_ENB_X_SET, CLK_RST_REG_BITS_ENUM(CLK_ENB_X_CLK_ENB_EMC_DLL, ENABLE));
/* Clear reset for MEM/EMC. */
reg::Write(CLKRST + CLK_RST_CONTROLLER_RST_DEV_H_CLR, CLK_RST_REG_BITS_ENUM(RST_DEV_H_EMC_RST, ENABLE),
CLK_RST_REG_BITS_ENUM(RST_DEV_H_MEM_RST, ENABLE));
/* Wait 5 microseconds for configuration to take. */
util::WaitMicroSeconds(5);
/* Enable ARC_CLK_OVR_ON. */
reg::ReadWrite(CLKRST + CLK_RST_CONTROLLER_LVL2_CLK_GATE_OVRD, CLK_RST_REG_BITS_ENUM(LVL2_CLK_GATE_OVRD_ARC_CLK_OVR_ON, ON));
/* Enable the ARC. */
reg::ReadWrite(MC + MC_IRAM_REG_CTRL, MC_REG_BITS_ENUM(IRAM_REG_CTRL_IRAM_CFG_WRITE_ACCESS, ENABLED));
/* Set IRAM BOM/TOP to open up access to all mmio. */
reg::Write(MC + MC_IRAM_BOM, 0x40000000);
reg::Write(MC + MC_IRAM_TOM, 0x80000000);
/* Read to ensure our configuration takes. */
reg::Read(MC + MC_IRAM_REG_CTRL);
}
void InitializeClock() {
/* Set SPARE_REG0 clock divisor 2. */
reg::ReadWrite(CLKRST + CLK_RST_CONTROLLER_SPARE_REG0, CLK_RST_REG_BITS_ENUM(SPARE_REG0_CLK_M_DIVISOR, CLK_M_DIVISOR2));
@ -248,8 +277,6 @@ namespace ams::nxboot {
pinmux::SetupHomeButton();
}
}
void SecureInitialize(bool enable_log) {
@ -269,6 +296,21 @@ namespace ams::nxboot {
DoMbistWorkaround();
}
/* Initialize security engine clock. */
clkrst::EnableSeClock();
/* Set fuse visibility. */
clkrst::SetFuseVisibility(true);
/* Disable fuse programming. */
fuse::Lockout();
/* Initialize the security engine. */
se::Initialize();
/* Enable the arc. */
EnableArc();
/* Setup initial clocks. */
InitializeClock();