fusee: Move nxboot hand-off to IRAM.

fusee/exosphere: Minor cleanup.
2018-09-15 21:08:58 +01:00
parent d61ec20679
commit 39d812f434
19 changed files with 370 additions and 290 deletions
--- a/fusee/fusee-secondary/src/nxboot_iram.c
+++ b/fusee/fusee-secondary/src/nxboot_iram.c
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2018 Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+ 
+#include <string.h>
+
+#include "cluster.h"
+#include "di.h"
+#include "exocfg.h"
+#include "flow.h"
+#include "mc.h"
+#include "nxboot.h"
+#include "se.h"
+#include "timers.h"
+
+void nxboot_finish(uint32_t boot_memaddr) {
+    volatile tegra_se_t *se = se_get_regs();
+    
+    /* Clear used keyslots. */
+    clear_aes_keyslot(KEYSLOT_SWITCH_PACKAGE2KEY);
+    clear_aes_keyslot(KEYSLOT_SWITCH_RNGKEY);
+    
+    /* Lock keyslots. */
+    set_aes_keyslot_flags(KEYSLOT_SWITCH_MASTERKEY, 0xFF);
+    if (MAILBOX_EXOSPHERE_CONFIGURATION->target_firmware < EXOSPHERE_TARGET_FIRMWARE_400) {
+        set_aes_keyslot_flags(KEYSLOT_SWITCH_DEVICEKEY, 0xFF);
+    } else {
+        set_aes_keyslot_flags(KEYSLOT_SWITCH_4XOLDDEVICEKEY, 0xFF);
+    }
+    
+    /* Finalize the GPU UCODE carveout. */
+    mc_config_carveout_finalize();
+    
+    /* Lock AES keyslots. */
+    for (uint32_t i = 0; i < 16; i++)
+        set_aes_keyslot_flags(i, 0x15);
+    
+    /* Lock RSA keyslots. */
+    for (uint32_t i = 0; i < 2; i++)
+        set_rsa_keyslot_flags(i, 1);
+    
+    /* Lock the Security Engine. */
+    se->_0x4 = 0;
+    se->AES_KEY_READ_DISABLE_REG = 0;
+    se->RSA_KEY_READ_DISABLE_REG = 0;
+    se->_0x0 &= 0xFFFFFFFB;
+    
+    /* Boot up Exosphère. */
+    MAILBOX_NX_BOOTLOADER_IS_SECMON_AWAKE = 0;
+    if (MAILBOX_EXOSPHERE_CONFIGURATION->target_firmware < EXOSPHERE_TARGET_FIRMWARE_400) {
+        MAILBOX_NX_BOOTLOADER_SETUP_STATE = NX_BOOTLOADER_STATE_LOADED_PACKAGE2;
+    } else {
+        MAILBOX_NX_BOOTLOADER_SETUP_STATE = NX_BOOTLOADER_STATE_DRAM_INITIALIZED_4X;
+    }
+
+    /* Terminate the display. */
+    display_end();
+    
+    /* Boot CPU0. */
+    cluster_boot_cpu0(boot_memaddr);
+    
+    /* Wait for Exosphère to wake up. */
+    while (MAILBOX_NX_BOOTLOADER_IS_SECMON_AWAKE == 0) {
+        udelay(1);
+    }
+    
+    /* Signal Exosphère. */
+    if (MAILBOX_EXOSPHERE_CONFIGURATION->target_firmware < EXOSPHERE_TARGET_FIRMWARE_400) {
+        MAILBOX_NX_BOOTLOADER_SETUP_STATE = NX_BOOTLOADER_STATE_FINISHED;
+    } else {
+        MAILBOX_NX_BOOTLOADER_SETUP_STATE = NX_BOOTLOADER_STATE_FINISHED_4X;
+    }
+
+    /* Halt ourselves in waitevent state. */
+    while (1) {
+        FLOW_CTLR_HALT_COP_EVENTS_0 = 0x50000000;
+    }
+}