Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 127 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/embedded6xx/storcenter.c b/arch/powerpc/platforms/embedded6xx/storcenter.c
new file mode 100644
index 000000000..5f16e80b6
--- /dev/null
+++ b/arch/powerpc/platforms/embedded6xx/storcenter.c
@@ -0,0 +1,127 @@
+/*
+ * Board setup routines for the storcenter
+ *
+ * Copyright 2007 (C) Oyvind Repvik (nail@nslu2-linux.org)
+ * Copyright 2007 Andy Wilcox, Jon Loeliger
+ *
+ * Based on linkstation.c by G. Liakhovetski
+ *
+ * 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/kernel.h>
+#include <linux/pci.h>
+#include <linux/initrd.h>
+#include <linux/of_platform.h>
+
+#include <asm/time.h>
+#include <asm/mpic.h>
+#include <asm/pci-bridge.h>
+
+#include "mpc10x.h"
+
+
+static const struct of_device_id storcenter_of_bus[] __initconst = {
+	{ .name = "soc", },
+	{},
+};
+
+static int __init storcenter_device_probe(void)
+{
+	of_platform_bus_probe(NULL, storcenter_of_bus, NULL);
+	return 0;
+}
+machine_device_initcall(storcenter, storcenter_device_probe);
+
+
+static int __init storcenter_add_bridge(struct device_node *dev)
+{
+#ifdef CONFIG_PCI
+	int len;
+	struct pci_controller *hose;
+	const int *bus_range;
+
+	printk("Adding PCI host bridge %pOF\n", dev);
+
+	hose = pcibios_alloc_controller(dev);
+	if (hose == NULL)
+		return -ENOMEM;
+
+	bus_range = of_get_property(dev, "bus-range", &len);
+	hose->first_busno = bus_range ? bus_range[0] : 0;
+	hose->last_busno = bus_range ? bus_range[1] : 0xff;
+
+	setup_indirect_pci(hose, MPC10X_MAPB_CNFG_ADDR, MPC10X_MAPB_CNFG_DATA, 0);
+
+	/* Interpret the "ranges" property */
+	/* This also maps the I/O region and sets isa_io/mem_base */
+	pci_process_bridge_OF_ranges(hose, dev, 1);
+#endif
+
+	return 0;
+}
+
+static void __init storcenter_setup_arch(void)
+{
+	printk(KERN_INFO "IOMEGA StorCenter\n");
+}
+
+static void __init storcenter_setup_pci(void)
+{
+	struct device_node *np;
+
+	/* Lookup PCI host bridges */
+	for_each_compatible_node(np, "pci", "mpc10x-pci")
+		storcenter_add_bridge(np);
+}
+
+/*
+ * Interrupt setup and service.  Interrupts on the turbostation come
+ * from the four PCI slots plus onboard 8241 devices: I2C, DUART.
+ */
+static void __init storcenter_init_IRQ(void)
+{
+	struct mpic *mpic;
+
+	mpic = mpic_alloc(NULL, 0, 0, 16, 0, " OpenPIC  ");
+	BUG_ON(mpic == NULL);
+
+	/*
+	 * 16 Serial Interrupts followed by 16 Internal Interrupts.
+	 * I2C is the second internal, so it is at 17, 0x11020.
+	 */
+	mpic_assign_isu(mpic, 0, mpic->paddr + 0x10200);
+	mpic_assign_isu(mpic, 1, mpic->paddr + 0x11000);
+
+	mpic_init(mpic);
+}
+
+static void __noreturn storcenter_restart(char *cmd)
+{
+	local_irq_disable();
+
+	/* Set exception prefix high - to the firmware */
+	mtmsr(mfmsr() | MSR_IP);
+	isync();
+
+	/* Wait for reset to happen */
+	for (;;) ;
+}
+
+static int __init storcenter_probe(void)
+{
+	return of_machine_is_compatible("iomega,storcenter");
+}
+
+define_machine(storcenter){
+	.name 			= "IOMEGA StorCenter",
+	.probe 			= storcenter_probe,
+	.setup_arch 		= storcenter_setup_arch,
+	.discover_phbs 		= storcenter_setup_pci,
+	.init_IRQ 		= storcenter_init_IRQ,
+	.get_irq 		= mpic_get_irq,
+	.restart 		= storcenter_restart,
+	.calibrate_decr 	= generic_calibrate_decr,
+};