[POWERPC] 4xx: Base support for 440SPe "Katmai" eval board

This adds base support for the Katmai board, including PCI-X and
PCI-Express (but no RTC, nvram, etc... yet).
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

arch/powerpc/boot/Makefile

@@ -38,6 +38,7 @@ BOOTCFLAGS	+= -I$(obj) -I$(srctree)/$(obj) -I$(srctree)/$(src)/libfdt
 $(obj)/4xx.o: BOOTCFLAGS += -mcpu=440
 $(obj)/ebony.o: BOOTCFLAGS += -mcpu=440
 $(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=440
+$(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=440
 $(obj)/treeboot-walnut.o: BOOTCFLAGS += -mcpu=405
 
 
@@ -60,7 +61,8 @@ src-plat := of.c cuboot-52xx.c cuboot-83xx.c cuboot-85xx.c holly.c \
 		cuboot-ebony.c treeboot-ebony.c prpmc2800.c \
 		ps3-head.S ps3-hvcall.S ps3.c treeboot-bamboo.c cuboot-8xx.c \
 		cuboot-pq2.c cuboot-sequoia.c treeboot-walnut.c cuboot-bamboo.c \
-		fixed-head.S ep88xc.c cuboot-hpc2.c ep405.c cuboot-taishan.c
+		fixed-head.S ep88xc.c cuboot-hpc2.c ep405.c cuboot-taishan.c \
+		cuboot-katmai.c
 src-boot := $(src-wlib) $(src-plat) empty.c
 
 src-boot := $(addprefix $(obj)/, $(src-boot))
@@ -202,6 +204,7 @@ image-$(CONFIG_BAMBOO)			+= treeImage.bamboo cuImage.bamboo
 image-$(CONFIG_SEQUOIA)			+= cuImage.sequoia
 image-$(CONFIG_WALNUT)			+= treeImage.walnut
 image-$(CONFIG_TAISHAN)			+= cuImage.taishan
+image-$(CONFIG_KATMAI)			+= cuImage.katmai
 endif
 
 # For 32-bit powermacs, build the COFF and miboot images

arch/powerpc/boot/cuboot-katmai.c

+/*
+ * Old U-boot compatibility for Katmai
+ *
+ * Author: Hugh Blemings <hugh@au.ibm.com>
+ *
+ * Copyright 2007 Hugh Blemings, IBM Corporation.
+ *   Based on cuboot-ebony.c which is:
+ * Copyright 2007 David Gibson, IBM Corporation.
+ *   Based on cuboot-83xx.c, which is:
+ * 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"
+#include "reg.h"
+#include "dcr.h"
+#include "4xx.h"
+#include "44x.h"
+#include "cuboot.h"
+
+#define TARGET_44x
+#include "ppcboot.h"
+
+static bd_t bd;
+
+BSS_STACK(4096);
+
+static void katmai_fixups(void)
+{
+	unsigned long sysclk = 33333000;
+
+	/* 440SP Clock logic is all but identical to 440GX
+	 * so we just use that code for now at least
+	 */
+	ibm440spe_fixup_clocks(sysclk, 6 * 1843200, 0);
+
+	ibm440spe_fixup_memsize();
+
+	dt_fixup_mac_address(0, bd.bi_enetaddr);
+
+	ibm4xx_fixup_ebc_ranges("/plb/opb/ebc");
+}
+
+void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
+		   unsigned long r6, unsigned long r7)
+{
+	CUBOOT_INIT();
+
+	platform_ops.fixups = katmai_fixups;
+	fdt_init(_dtb_start);
+	serial_console_init();
+}

arch/powerpc/platforms/44x/Kconfig

@@ -34,6 +34,16 @@ config TAISHAN
 	  This option enables support for the AMCC PPC440GX "Taishan"
 	  evaluation board.
 
+config KATMAI
+	bool "Katmai"
+	depends on 44x
+	default n
+	select 440SPe
+	select PCI
+	select PPC4xx_PCI_EXPRESS
+	help
+	  This option enables support for the AMCC PPC440SPe evaluation board.
+
 #config LUAN
 #	bool "Luan"
 #	depends on 44x
@@ -78,6 +88,10 @@ config 440GX
 config 440SP
 	bool
 
+config 440SPe
+        select IBM_NEW_EMAC_EMAC4
+	bool
+
 # 44x errata/workaround config symbols, selected by the CPU models above
 config IBM440EP_ERR42
 	bool

arch/powerpc/platforms/44x/Makefile

 obj-$(CONFIG_44x)	:= misc_44x.o
 obj-$(CONFIG_EBONY)	+= ebony.o
 obj-$(CONFIG_TAISHAN)	+= taishan.o
-obj-$(CONFIG_BAMBOO) += bamboo.o
+obj-$(CONFIG_BAMBOO)	+= bamboo.o
 obj-$(CONFIG_SEQUOIA)	+= sequoia.o
+obj-$(CONFIG_KATMAI)	+= katmai.o

arch/powerpc/platforms/44x/katmai.c

+/*
+ * Katmai board specific routines
+ *
+ * Benjamin Herrenschmidt <benh@kernel.crashing.org>
+ * Copyright 2007 IBM Corp.
+ *
+ * Based on the Bamboo code by
+ * Josh Boyer <jwboyer@linux.vnet.ibm.com>
+ * Copyright 2007 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 "44x.h"
+
+static struct of_device_id katmai_of_bus[] = {
+	{ .compatible = "ibm,plb4", },
+	{ .compatible = "ibm,opb", },
+	{ .compatible = "ibm,ebc", },
+	{},
+};
+
+static int __init katmai_device_probe(void)
+{
+	if (!machine_is(katmai))
+		return 0;
+
+	of_platform_bus_probe(NULL, katmai_of_bus, NULL);
+
+	return 0;
+}
+device_initcall(katmai_device_probe);
+
+static int __init katmai_probe(void)
+{
+	unsigned long root = of_get_flat_dt_root();
+
+	if (!of_flat_dt_is_compatible(root, "amcc,katmai"))
+		return 0;
+
+	return 1;
+}
+
+define_machine(katmai) {
+	.name 				= "Katmai",
+	.probe 				= katmai_probe,
+	.progress 			= udbg_progress,
+	.init_IRQ 			= uic_init_tree,
+	.get_irq 			= uic_get_irq,
+	.restart			= ppc44x_reset_system,
+	.calibrate_decr			= generic_calibrate_decr,
+};