Bootloader: Difference between revisions

← Older edit Newer edit →

@@ Line 101: / Line 101: @@
 For an issue with console-unique key-init, see [[OTP_Registers|here]].
+== BootROM Errors ==
+Sample error-screen(where firm0+firm1 RSA signatures were corrupted):
+  BOOTROM 8046
+  ERRCODE: 00F800FF
+  DEDEFFFF FFFFFFFF
+  00000000 00000000
+* 1st line is: <code>print_string(..., "BOOTROM %X", 0x8046);//This last param comes from the .pool.</code>
+* 2nd line is: <code>print_string(..., "ERRCODE:    %08X", *((unsigned int*)(0x1FFFE000+0xC)));//See below memory notes.</code>
+* 3rd line is: <code>print_string(..., "%08X %08X", *((unsigned int*)(0x1FFFE000+0x10))`, `*((unsigned int*)(0x1fffe000+0x14)));//See below memory notes.</code>
+* 4th line is: <code>print_string(..., "%08X %08X",*((unsigned int*)(0x1FFFE000+0x18))`, `*((unsigned int*)(0x1fffe000+0x1C)));//See below memory notes.</code>
+== 0x1FFFE000 memory ==
+This memory is used by boot9 mainly for sending info to the arm11 for the error-screen.
+* 8bit-entry-array 0x1FFFE000+0xC: 8bit status-codes initialized by boot9 main(), for the FIRM-boot devices. +0 is NAND and +2 is wifi-spiflash.
+* ...
+* 8bit-entry-array 0x1FFFE000+0x10: Error-codes originally from nand_findfirmpartition_loadfirm(), for each of the 8 NCSD partitions.
 == Boot9 startup ==