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authorBryan O'Donoghue <bodonoghue@codehermit.ie>2008-05-08 12:47:00 (GMT)
committerKumar Gala <galak@kernel.crashing.org>2008-06-02 19:44:25 (GMT)
commit59d13f9dba56c444e5356b42d3d57b46e44ef975 (patch)
tree320b02fb36d0fe68575e740b5053cdca6288b5c4 /arch/powerpc/boot/redboot-83xx.c
parent64f9b5ee17ee7974d7cc58d75221432d86960ba3 (diff)
downloadlinux-fsl-qoriq-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.c60
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);
+}