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authorHugh Blemings <hugh@blemings.org>2007-12-21 15:39:28 +1100
committerJosh Boyer <jwboyer@linux.vnet.ibm.com>2007-12-23 13:13:33 -0600
commit6bbc5476298a3dd46a7a19c2af03778b094acb15 (patch)
treed88cbb289b92195f079d62f3695224b09865e855 /arch/powerpc/platforms
parent379865d63cb97f8e8241724aae48e795a6b7cb10 (diff)
downloadop-kernel-dev-6bbc5476298a3dd46a7a19c2af03778b094acb15.zip
op-kernel-dev-6bbc5476298a3dd46a7a19c2af03778b094acb15.tar.gz
[POWERPC] 4xx: Base support for 440GX Taishan eval board
This patch adds base support for the AMCC Taishan 440GX evaluation board. Signed-off-by: Hugh Blemings <hugh@blemings.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Diffstat (limited to 'arch/powerpc/platforms')
-rw-r--r--arch/powerpc/platforms/44x/Kconfig14
-rw-r--r--arch/powerpc/platforms/44x/Makefile1
-rw-r--r--arch/powerpc/platforms/44x/taishan.c74
3 files changed, 89 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig
index f65fa10..1bf0424 100644
--- a/arch/powerpc/platforms/44x/Kconfig
+++ b/arch/powerpc/platforms/44x/Kconfig
@@ -23,6 +23,16 @@ config SEQUOIA
help
This option enables support for the AMCC PPC440EPX evaluation board.
+config TAISHAN
+ bool "Taishan"
+ depends on 44x
+ default n
+ select 440GX
+ select PCI
+ help
+ This option enables support for the AMCC PPC440GX "Taishan"
+ evaluation board.
+
#config LUAN
# bool "Luan"
# depends on 44x
@@ -59,6 +69,10 @@ config 440GP
config 440GX
bool
+ select IBM_NEW_EMAC_EMAC4
+ select IBM_NEW_EMAC_RGMII
+ select IBM_NEW_EMAC_ZMII #test only
+ select IBM_NEW_EMAC_TAH #test only
config 440SP
bool
diff --git a/arch/powerpc/platforms/44x/Makefile b/arch/powerpc/platforms/44x/Makefile
index 10ce674..8b05589 100644
--- a/arch/powerpc/platforms/44x/Makefile
+++ b/arch/powerpc/platforms/44x/Makefile
@@ -1,4 +1,5 @@
obj-$(CONFIG_44x) := misc_44x.o
obj-$(CONFIG_EBONY) += ebony.o
+obj-$(CONFIG_TAISHAN) += taishan.o
obj-$(CONFIG_BAMBOO) += bamboo.o
obj-$(CONFIG_SEQUOIA) += sequoia.o
diff --git a/arch/powerpc/platforms/44x/taishan.c b/arch/powerpc/platforms/44x/taishan.c
new file mode 100644
index 0000000..e3b7c70
--- /dev/null
+++ b/arch/powerpc/platforms/44x/taishan.c
@@ -0,0 +1,74 @@
+/*
+ * Taishan board specific routines based off ebony.c code
+ * original copyrights below
+ *
+ * Matt Porter <mporter@kernel.crashing.org>
+ * Copyright 2002-2005 MontaVista Software Inc.
+ *
+ * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
+ * Copyright (c) 2003-2005 Zultys Technologies
+ *
+ * Rewritten and ported to the merged powerpc tree:
+ * Copyright 2007 David Gibson <dwg@au1.ibm.com>, IBM Corporation.
+ *
+ * Modified from ebony.c for taishan:
+ * Copyright 2007 Hugh Blemings <hugh@au.ibm.com>, IBM Corporation.
+ *
+ * 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/init.h>
+#include <linux/of_platform.h>
+
+#include <asm/machdep.h>
+#include <asm/prom.h>
+#include <asm/udbg.h>
+#include <asm/time.h>
+#include <asm/uic.h>
+#include <asm/pci-bridge.h>
+
+#include "44x.h"
+
+static struct of_device_id taishan_of_bus[] = {
+ { .compatible = "ibm,plb4", },
+ { .compatible = "ibm,opb", },
+ { .compatible = "ibm,ebc", },
+ {},
+};
+
+static int __init taishan_device_probe(void)
+{
+ if (!machine_is(taishan))
+ return 0;
+
+ of_platform_bus_probe(NULL, taishan_of_bus, NULL);
+
+ return 0;
+}
+device_initcall(taishan_device_probe);
+
+/*
+ * Called very early, MMU is off, device-tree isn't unflattened
+ */
+static int __init taishan_probe(void)
+{
+ unsigned long root = of_get_flat_dt_root();
+
+ if (!of_flat_dt_is_compatible(root, "amcc,taishan"))
+ return 0;
+
+ return 1;
+}
+
+define_machine(taishan) {
+ .name = "Taishan",
+ .probe = taishan_probe,
+ .progress = udbg_progress,
+ .init_IRQ = uic_init_tree,
+ .get_irq = uic_get_irq,
+ .restart = ppc44x_reset_system,
+ .calibrate_decr = generic_calibrate_decr,
+};
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