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author | Bryan O'Donoghue <bodonoghue@codehermit.ie> | 2008-05-08 12:47:00 (GMT) |
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committer | Kumar Gala <galak@kernel.crashing.org> | 2008-06-02 19:44:25 (GMT) |
commit | 59d13f9dba56c444e5356b42d3d57b46e44ef975 (patch) | |
tree | 320b02fb36d0fe68575e740b5053cdca6288b5c4 /arch/powerpc/boot/redboot-83xx.c | |
parent | 64f9b5ee17ee7974d7cc58d75221432d86960ba3 (diff) | |
download | linux-59d13f9dba56c444e5356b42d3d57b46e44ef975.tar.xz |
[POWERPC] 83xx: Add support for Analogue & Micro ASP837E board
The following adds support for the Analogue & Micro ASP 8347E, running
Redboot.
http://www.analogue-micro.com/ASP8347.html
Signed-off-by: Bryan O'Donoghue <bodonoghue@codehermit.ie>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/boot/redboot-83xx.c')
-rw-r--r-- | arch/powerpc/boot/redboot-83xx.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/arch/powerpc/boot/redboot-83xx.c b/arch/powerpc/boot/redboot-83xx.c new file mode 100644 index 0000000..79aa9e1 --- /dev/null +++ b/arch/powerpc/boot/redboot-83xx.c @@ -0,0 +1,60 @@ +/* + * RedBoot firmware support + * + * Author: Scott Wood <scottwood@freescale.com> + * + * Copyright (c) 2007 Freescale Semiconductor, Inc. + * Copyright (c) 2008 Codehermit + * + * 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" +#include "redboot.h" +#include "fsl-soc.h" +#include "io.h" + +static bd_t bd; +BSS_STACK(4096); + +#define MHZ(x) ((x + 500000) / 1000000) + +static void platform_fixups(void) +{ + void *node; + + dt_fixup_memory(bd.bi_memstart, bd.bi_memsize); + dt_fixup_mac_addresses(bd.bi_enetaddr); + dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 16, bd.bi_busfreq); + + node = finddevice("/soc/cpm/brg"); + if (node) { + printf("BRG clock-frequency <- 0x%x (%dMHz)\r\n", + bd.bi_busfreq, MHZ(bd.bi_busfreq)); + setprop(node, "clock-frequency", &bd.bi_busfreq, 4); + } + +} + +void platform_init(unsigned long r3, unsigned long r4, unsigned long r5, + unsigned long r6, unsigned long r7) +{ + memcpy(&bd, (char *)r3, sizeof(bd)); + + if (bd.bi_tag != 0x42444944) + return; + + simple_alloc_init(_end, + bd.bi_memstart + bd.bi_memsize - (unsigned long)_end, + 32, 64); + + fdt_init(_dtb_start); + serial_console_init(); + platform_ops.fixups = platform_fixups; + + loader_info.cmdline = (char *)bd.bi_cmdline; + loader_info.cmdline_len = strlen((char *)bd.bi_cmdline); +} |