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authorJosh Boyer <jwboyer@linux.vnet.ibm.com>2007-09-07 07:51:24 -0500
committerJosh Boyer <jwboyer@linux.vnet.ibm.com>2007-09-07 07:51:24 -0500
commit545c069ccd76a0f1f3ceacd8ba5bc8f5208eb727 (patch)
tree05837287a30fe3e0f8037e4039c2bd5bc80dae99 /arch/powerpc/platforms/40x/walnut.c
parent7f2814d229905c35d7c38798891adf00286fdca4 (diff)
downloadlinux-stericsson-545c069ccd76a0f1f3ceacd8ba5bc8f5208eb727.tar.gz
[POWERPC] Walnut board support
Board support for the PPC405 Walnut evaluation board Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'arch/powerpc/platforms/40x/walnut.c')
-rw-r--r--arch/powerpc/platforms/40x/walnut.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/40x/walnut.c b/arch/powerpc/platforms/40x/walnut.c
new file mode 100644
index 000000000000..c17fdf23b492
--- /dev/null
+++ b/arch/powerpc/platforms/40x/walnut.c
@@ -0,0 +1,68 @@
+/*
+ * Architecture- / platform-specific boot-time initialization code for
+ * IBM PowerPC 4xx based boards. Adapted from original
+ * code by Gary Thomas, Cort Dougan <cort@fsmlabs.com>, and Dan Malek
+ * <dan@net4x.com>.
+ *
+ * Copyright(c) 1999-2000 Grant Erickson <grant@lcse.umn.edu>
+ *
+ * Rewritten and ported to the merged powerpc tree:
+ * Copyright 2007 IBM Corporation
+ * Josh Boyer <jwboyer@linux.vnet.ibm.com>
+ *
+ * 2002 (c) MontaVista, Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#include <linux/init.h>
+#include <asm/machdep.h>
+#include <asm/prom.h>
+#include <asm/udbg.h>
+#include <asm/time.h>
+#include <asm/uic.h>
+#include <asm/of_platform.h>
+
+static struct of_device_id walnut_of_bus[] = {
+ { .compatible = "ibm,plb3", },
+ { .compatible = "ibm,opb", },
+ { .compatible = "ibm,ebc", },
+ {},
+};
+
+static int __init walnut_device_probe(void)
+{
+ if (!machine_is(walnut))
+ return 0;
+
+ /* FIXME: do bus probe here */
+ of_platform_bus_probe(NULL, walnut_of_bus, NULL);
+
+ return 0;
+}
+device_initcall(walnut_device_probe);
+
+static int __init walnut_probe(void)
+{
+ unsigned long root = of_get_flat_dt_root();
+
+ if (!of_flat_dt_is_compatible(root, "ibm,walnut"))
+ return 0;
+
+ return 1;
+}
+
+static void __init walnut_setup_arch(void)
+{
+}
+
+define_machine(walnut) {
+ .name = "Walnut",
+ .probe = walnut_probe,
+ .setup_arch = walnut_setup_arch,
+ .progress = udbg_progress,
+ .init_IRQ = uic_init_tree,
+ .get_irq = uic_get_irq,
+ .calibrate_decr = generic_calibrate_decr,
+};