| /* |
| * arch/ppc/simple/misc-44x.c |
| * |
| * Misc. bootloader code for IBM PPC 44x reference boards (Ebony, Ocotea) |
| * |
| * Matt Porter <mporter@mvista.com> |
| * Eugene Surovegin <ebs@ebshome.net> |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the |
| * Free Software Foundation; either version 2 of the License, or (at your |
| * option) any later version. |
| */ |
| #include <linux/config.h> |
| #include <linux/types.h> |
| #include <asm/io.h> |
| #include <asm/processor.h> |
| #include <asm/ibm4xx.h> |
| |
| extern struct bi_record *decompress_kernel(unsigned long load_addr, |
| int num_words, unsigned long cksum); |
| extern unsigned long timebase_period_ns; |
| |
| struct bi_record * |
| load_kernel(unsigned long load_addr, int num_words, unsigned long cksum) |
| { |
| timebase_period_ns = 3; |
| mtdcr(DCRN_MALCR(DCRN_MAL_BASE), MALCR_MMSR); /* reset MAL */ |
| while (mfdcr(DCRN_MALCR(DCRN_MAL_BASE)) & MALCR_MMSR) {}; /* wait for reset */ |
| *(volatile unsigned long *)PPC44x_EMAC0_MR0 = 0x20000000; /* reset EMAC */ |
| eieio(); |
| |
| return decompress_kernel(load_addr, num_words, cksum); |
| } |
