Date: Sun, 30 Jan 2011 22:44:09 +0800 From: Adrian Chadd <adrian@freebsd.org> To: freebsd-mips@freebsd.org Subject: Ubiquiti LS-SR71 and redboot go vs exec: what's the difference? Message-ID: <AANLkTi=x9OaRMxKjquwwam5XDPnaMgnnYr=s9tRiuyWP@mail.gmail.com>
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Hi guys, I have a strange situation here which I hope someone can shed some light on. I've built a kernel for the LS-SR71 (AR7131 based) based on what works on the routerstation/routerstation pro. If I boot it from the network, everything is fine. If I boot it from the flash, the envp/argv pointers aren't set right and thus memory and ethernet MAC address is incorrect. If I boot it from flash but use "exec" instead of the scripted "go", it also fails. I dumped a bit of the debugging into IRC; since I've lost the console history I'll just paste it here. TFTP: 22:14 <@adri> RedBoot> load kernel.LSSR71 22:14 <@adri> Using default protocol (TFTP) 22:14 <@adri> Entry point: 0x80060100, address range: 0x80060000-0x804a4624 22:14 <@adri> ok, that's via tftpboot 22:14 <@adri> makeoptions KERNLOADADDR=0x80060000 22:14 <@adri> ok, and the environment is right 22:14 <@adri> RedBoot> exec 22:14 <@adri> Now booting linux kernel: Base address 0x80050000 Entry 0x80060100 Cmdline : console=ttyS0,115200 init=/init 22:14 <@adri> arguments: a0 = 00000002 a1 = 80050020 a2 = 80050000 a3 = 0000001b 22:14 <@adri> environment and argv are right 22:15 <@adri> now, I'll make up a flash image and flash it And with the unit being flashed: 22:17 <@adri> Initializing default partitions for 8M flash size. 22:17 <@adri> Created 'kernel' - base: 0xBF030000, mem base; 0x80060000, entry: 0x80060000, size: 0x001D0000 22:17 <@adri> Created 'rootfs' - base: 0xBF200000, mem base; 0xBF100000, entry: 0x00000000, size: 0x00470000 22:19 <@adri> now, from flash: 22:19 <@adri> Trying ZLIB decompression... decompression error: incorrect data check 22:19 <@adri> Entry point: 0x80060100, address range: 0x80060000-0x804a4624 22:19 <@adri> RedBoot> go 22:19 <@adri> and 22:19 <@adri> arguments: a0 = 80060100 a1 = 80fffff0 a2 = 00000001 a3 = 00000007
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