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author | Scott Wood <scottwood@freescale.com> | 2007-04-27 03:09:01 +1000 |
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committer | Paul Mackerras <paulus@samba.org> | 2007-04-27 21:14:15 +1000 |
commit | 4536b937466ff6784d2a9a4bebde924a0d6e01cb (patch) | |
tree | 68159dd12e235253a8d729c2269e3cddeb5bdbe5 /arch/powerpc/boot/cuboot-85xx.c | |
parent | e4bb688d9f11d7fee927312cc97d443472c7c212 (diff) | |
download | op-kernel-dev-4536b937466ff6784d2a9a4bebde924a0d6e01cb.zip op-kernel-dev-4536b937466ff6784d2a9a4bebde924a0d6e01cb.tar.gz |
[POWERPC] bootwrapper: cuImage for 85xx
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/boot/cuboot-85xx.c')
-rw-r--r-- | arch/powerpc/boot/cuboot-85xx.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/arch/powerpc/boot/cuboot-85xx.c b/arch/powerpc/boot/cuboot-85xx.c new file mode 100644 index 0000000..f88ba00 --- /dev/null +++ b/arch/powerpc/boot/cuboot-85xx.c @@ -0,0 +1,69 @@ +/* + * Old U-boot compatibility for 85xx + * + * Author: Scott Wood <scottwood@freescale.com> + * + * Copyright (c) 2007 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include "ops.h" +#include "stdio.h" + +#define TARGET_85xx +#include "ppcboot.h" + +static bd_t bd; +extern char _end[]; +extern char _dtb_start[], _dtb_end[]; + +static void platform_fixups(void) +{ + void *soc; + + dt_fixup_memory(bd.bi_memstart, bd.bi_memsize); + dt_fixup_mac_addresses(bd.bi_enetaddr, bd.bi_enet1addr, + bd.bi_enet2addr); + dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 8, bd.bi_busfreq); + + /* Unfortunately, the specific model number is encoded in the + * soc node name in existing dts files -- once that is fixed, + * this can do a simple path lookup. + */ + soc = find_node_by_devtype(NULL, "soc"); + if (soc) { + void *serial = NULL; + + setprop(soc, "bus-frequency", &bd.bi_busfreq, + sizeof(bd.bi_busfreq)); + + while ((serial = find_node_by_devtype(serial, "serial"))) { + if (get_parent(serial) != soc) + continue; + + setprop(serial, "clock-frequency", &bd.bi_busfreq, + sizeof(bd.bi_busfreq)); + } + } +} + +void platform_init(unsigned long r3, unsigned long r4, unsigned long r5, + unsigned long r6, unsigned long r7) +{ + unsigned long end_of_ram = bd.bi_memstart + bd.bi_memsize; + unsigned long avail_ram = end_of_ram - (unsigned long)_end; + + memcpy(&bd, (bd_t *)r3, sizeof(bd)); + loader_info.initrd_addr = r4; + loader_info.initrd_size = r4 ? r5 : 0; + loader_info.cmdline = (char *)r6; + loader_info.cmdline_len = r7 - r6; + + simple_alloc_init(_end, avail_ram - 1024*1024, 32, 64); + ft_init(_dtb_start, _dtb_end - _dtb_start, 32); + serial_console_init(); + platform_ops.fixups = platform_fixups; +} |