dirty fix to merging

1 files changed, 191 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
new file mode 100644
index 00000000..3755e61d
--- /dev/null
+++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
@@ -0,0 +1,191 @@
+/*
+ * MPC86xx HPCN board specific routines
+ *
+ * Recode: ZHANG WEI <wei.zhang@freescale.com>
+ * Initial author: Xianghua Xiao <x.xiao@freescale.com>
+ *
+ * Copyright 2006 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 as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#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 <linux/memblock.h>
+
+#include <asm/time.h>
+#include <asm/machdep.h>
+#include <asm/pci-bridge.h>
+#include <asm/prom.h>
+#include <mm/mmu_decl.h>
+#include <asm/udbg.h>
+#include <asm/swiotlb.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 fmt); } while(0)
+#else
+#define DBG(fmt...) do { } while(0)
+#endif
+
+#ifdef CONFIG_PCI
+extern int uli_exclude_device(struct pci_controller *hose,
+				u_char bus, u_char devfn);
+
+static int mpc86xx_exclude_device(struct pci_controller *hose,
+				   u_char bus, u_char devfn)
+{
+	struct device_node* node;	
+	struct resource rsrc;
+
+	node = hose->dn;
+	of_address_to_resource(node, 0, &rsrc);
+
+	if ((rsrc.start & 0xfffff) == 0x8000) {
+		return uli_exclude_device(hose, bus, devfn);
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+#endif /* CONFIG_PCI */
+
+
+static void __init
+mpc86xx_hpcn_setup_arch(void)
+{
+#ifdef CONFIG_PCI
+	struct device_node *np;
+	struct pci_controller *hose;
+#endif
+	dma_addr_t max = 0xffffffff;
+
+	if (ppc_md.progress)
+		ppc_md.progress("mpc86xx_hpcn_setup_arch()", 0);
+
+#ifdef CONFIG_PCI
+	for_each_compatible_node(np, "pci", "fsl,mpc8641-pcie") {
+		struct resource rsrc;
+		of_address_to_resource(np, 0, &rsrc);
+		if ((rsrc.start & 0xfffff) == 0x8000)
+			fsl_add_bridge(np, 1);
+		else
+			fsl_add_bridge(np, 0);
+		hose = pci_find_hose_for_OF_device(np);
+		max = min(max, hose->dma_window_base_cur +
+			  hose->dma_window_size);
+	}
+
+	ppc_md.pci_exclude_device = mpc86xx_exclude_device;
+
+#endif
+
+	printk("MPC86xx HPCN board from Freescale Semiconductor\n");
+
+#ifdef CONFIG_SMP
+	mpc86xx_smp_init();
+#endif
+
+#ifdef CONFIG_SWIOTLB
+	if (memblock_end_of_DRAM() > max) {
+		ppc_swiotlb_enable = 1;
+		set_pci_dma_ops(&swiotlb_dma_ops);
+		ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb;
+	}
+#endif
+}
+
+
+static void
+mpc86xx_hpcn_show_cpuinfo(struct seq_file *m)
+{
+	uint svid = mfspr(SPRN_SVR);
+
+	seq_printf(m, "Vendor\t\t: Freescale Semiconductor\n");
+
+	seq_printf(m, "SVR\t\t: 0x%x\n", svid);
+}
+
+
+/*
+ * Called very early, device-tree isn't unflattened
+ */
+static int __init mpc86xx_hpcn_probe(void)
+{
+	unsigned long root = of_get_flat_dt_root();
+
+	if (of_flat_dt_is_compatible(root, "fsl,mpc8641hpcn"))
+		return 1;	/* Looks good */
+
+	/* Be nice and don't give silent boot death.  Delete this in 2.6.27 */
+	if (of_flat_dt_is_compatible(root, "mpc86xx")) {
+		pr_warning("WARNING: your dts/dtb is old. You must update before the next kernel release\n");
+		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", },
+	{ .compatible = "fsl,srio", },
+	{ .compatible = "gianfar", },
+	{},
+};
+
+static int __init declare_of_platform_devices(void)
+{
+	of_platform_bus_probe(NULL, of_bus_ids, NULL);
+
+	return 0;
+}
+machine_device_initcall(mpc86xx_hpcn, declare_of_platform_devices);
+machine_arch_initcall(mpc86xx_hpcn, swiotlb_setup_bus_notifier);
+
+define_machine(mpc86xx_hpcn) {
+	.name			= "MPC86xx HPCN",
+	.probe			= mpc86xx_hpcn_probe,
+	.setup_arch		= mpc86xx_hpcn_setup_arch,
+	.init_IRQ		= mpc86xx_init_irq,
+	.show_cpuinfo		= mpc86xx_hpcn_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
+};