powerpc: Board support for GE Fanuc SBC610

Support for the SBC610 VPX Single Board Computer from GE Fanuc (PowerPC
MPC8641D).

This is the basic board support for GE Fanuc's SBC610, a 6U single board
computer, based on Freescale's MPC8641D.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

3 files changed, 158 insertions, 1 deletions

diff --git a/arch/powerpc/platforms/86xx/Kconfig b/arch/powerpc/platforms/86xx/Kconfig
index 9355a526943..77dd797a258 100644
--- a/arch/powerpc/platforms/86xx/Kconfig
+++ b/arch/powerpc/platforms/86xx/Kconfig
@@ -31,6 +31,13 @@ config MPC8610_HPCD
 	help
 	  This option enables support for the MPC8610 HPCD board.
 
+config GEF_SBC610
+	bool "GE Fanuc SBC610"
+	select DEFAULT_UIMAGE
+	select HAS_RAPIDIO
+	help
+	  This option enables support for GE Fanuc's SBC610.
+
 endif
 
 config MPC8641
@@ -39,7 +46,7 @@ config MPC8641
 	select FSL_PCI if PCI
 	select PPC_UDBG_16550
 	select MPIC
-	default y if MPC8641_HPCN || SBC8641D
+	default y if MPC8641_HPCN || SBC8641D || GEF_SBC610
 
 config MPC8610
 	bool
diff --git a/arch/powerpc/platforms/86xx/Makefile b/arch/powerpc/platforms/86xx/Makefile
index 8fee37dec79..cb9fc8f4360 100644
--- a/arch/powerpc/platforms/86xx/Makefile
+++ b/arch/powerpc/platforms/86xx/Makefile
@@ -7,3 +7,4 @@ obj-$(CONFIG_SMP)		+= mpc86xx_smp.o
 obj-$(CONFIG_MPC8641_HPCN)	+= mpc86xx_hpcn.o
 obj-$(CONFIG_SBC8641D)		+= sbc8641d.o
 obj-$(CONFIG_MPC8610_HPCD)	+= mpc8610_hpcd.o
+obj-$(CONFIG_GEF_SBC610)	+= gef_sbc610.o
diff --git a/arch/powerpc/platforms/86xx/gef_sbc610.c b/arch/powerpc/platforms/86xx/gef_sbc610.c
new file mode 100644
index 00000000000..3543a9e6761
--- /dev/null
+++ b/arch/powerpc/platforms/86xx/gef_sbc610.c
@@ -0,0 +1,149 @@
+/*
+ * GE Fanuc SBC610 board support
+ *
+ * Author: Martyn Welch <martyn.welch@gefanuc.com>
+ *
+ * Copyright 2008 GE Fanuc Intelligent Platforms Embedded Systems, Inc.
+ *
+ * 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.
+ *
+ * Based on: mpc86xx_hpcn.c (MPC86xx HPCN board specific routines)
+ * Copyright 2006 Freescale Semiconductor Inc.
+ */
+
+#include <linux/stddef.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/kdev_t.h>
+#include <linux/delay.h>
+#include <linux/seq_file.h>
+#include <linux/of_platform.h>
+
+#include <asm/system.h>
+#include <asm/time.h>
+#include <asm/machdep.h>
+#include <asm/pci-bridge.h>
+#include <asm/mpc86xx.h>
+#include <asm/prom.h>
+#include <mm/mmu_decl.h>
+#include <asm/udbg.h>
+
+#include <asm/mpic.h>
+
+#include <sysdev/fsl_pci.h>
+#include <sysdev/fsl_soc.h>
+
+#include "mpc86xx.h"
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG (fmt...) do { printk(KERN_ERR "SBC610: " fmt); } while (0)
+#else
+#define DBG (fmt...) do { } while (0)
+#endif
+
+static void __init gef_sbc610_setup_arch(void)
+{
+#ifdef CONFIG_PCI
+	struct device_node *np;
+
+	for_each_compatible_node(np, "pci", "fsl,mpc8641-pcie") {
+		fsl_add_bridge(np, 1);
+	}
+#endif
+
+	printk(KERN_INFO "GE Fanuc Intelligent Platforms SBC610 6U VPX SBC\n");
+
+#ifdef CONFIG_SMP
+	mpc86xx_smp_init();
+#endif
+}
+
+
+static void gef_sbc610_show_cpuinfo(struct seq_file *m)
+{
+	struct device_node *root;
+	uint memsize = total_memory;
+	const char *model = "";
+	uint svid = mfspr(SPRN_SVR);
+
+	seq_printf(m, "Vendor\t\t: GE Fanuc Intelligent Platforms\n");
+
+	root = of_find_node_by_path("/");
+	if (root)
+		model = of_get_property(root, "model", NULL);
+	seq_printf(m, "Machine\t\t: %s\n", model);
+	of_node_put(root);
+
+	seq_printf(m, "SVR\t\t: 0x%x\n", svid);
+	seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024));
+}
+
+
+/*
+ * Called very early, device-tree isn't unflattened
+ *
+ * This function is called to determine whether the BSP is compatible with the
+ * supplied device-tree, which is assumed to be the correct one for the actual
+ * board. It is expected thati, in the future, a kernel may support multiple
+ * boards.
+ */
+static int __init gef_sbc610_probe(void)
+{
+	unsigned long root = of_get_flat_dt_root();
+
+	if (of_flat_dt_is_compatible(root, "gef,sbc610"))
+		return 1;
+
+	return 0;
+}
+
+static long __init mpc86xx_time_init(void)
+{
+	unsigned int temp;
+
+	/* Set the time base to zero */
+	mtspr(SPRN_TBWL, 0);
+	mtspr(SPRN_TBWU, 0);
+
+	temp = mfspr(SPRN_HID0);
+	temp |= HID0_TBEN;
+	mtspr(SPRN_HID0, temp);
+	asm volatile("isync");
+
+	return 0;
+}
+
+static __initdata struct of_device_id of_bus_ids[] = {
+	{ .compatible = "simple-bus", },
+	{},
+};
+
+static int __init declare_of_platform_devices(void)
+{
+	printk(KERN_DEBUG "Probe platform devices\n");
+	of_platform_bus_probe(NULL, of_bus_ids, NULL);
+
+	return 0;
+}
+machine_device_initcall(gef_sbc610, declare_of_platform_devices);
+
+define_machine(gef_sbc610) {
+	.name			= "GE Fanuc SBC610",
+	.probe			= gef_sbc610_probe,
+	.setup_arch		= gef_sbc610_setup_arch,
+	.init_IRQ		= mpc86xx_init_irq,
+	.show_cpuinfo		= gef_sbc610_show_cpuinfo,
+	.get_irq		= mpic_get_irq,
+	.restart		= fsl_rstcr_restart,
+	.time_init		= mpc86xx_time_init,
+	.calibrate_decr		= generic_calibrate_decr,
+	.progress		= udbg_progress,
+#ifdef CONFIG_PCI
+	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
+#endif
+};