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/*
* Corenet based SoC DS Setup
*
* Maintained by Kumar Gala (see MAINTAINERS for contact information)
*
* Copyright 2009 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/kernel.h>
#include <linux/pci.h>
#include <linux/kdev_t.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/memblock.h>
#include <asm/system.h>
#include <asm/time.h>
#include <asm/machdep.h>
#include <asm/pci-bridge.h>
#include <mm/mmu_decl.h>
#include <asm/prom.h>
#include <asm/udbg.h>
#include <asm/mpic.h>
#include <linux/of_platform.h>
#include <sysdev/fsl_soc.h>
#include <sysdev/fsl_pci.h>
void __init corenet_ds_pic_init(void)
{
struct mpic *mpic;
struct resource r;
struct device_node *np = NULL;
unsigned int flags = MPIC_PRIMARY | MPIC_BIG_ENDIAN |
MPIC_BROKEN_FRR_NIRQS | MPIC_SINGLE_DEST_CPU;
np = of_find_node_by_type(np, "open-pic");
if (np == NULL) {
printk(KERN_ERR "Could not find open-pic node\n");
return;
}
if (of_address_to_resource(np, 0, &r)) {
printk(KERN_ERR "Failed to map mpic register space\n");
of_node_put(np);
return;
}
if (ppc_md.get_irq == mpic_get_coreint_irq)
flags |= MPIC_ENABLE_COREINT;
mpic = mpic_alloc(np, r.start, flags, 0, 256, " OpenPIC ");
BUG_ON(mpic == NULL);
mpic_init(mpic);
}
#ifdef CONFIG_PCI
static int primary_phb_addr;
#endif
/*
* Setup the architecture
*/
#ifdef CONFIG_SMP
void __init mpc85xx_smp_init(void);
#endif
void __init corenet_ds_setup_arch(void)
{
#ifdef CONFIG_PCI
struct device_node *np;
struct pci_controller *hose;
#endif
dma_addr_t max = 0xffffffff;
#ifdef CONFIG_SMP
mpc85xx_smp_init();
#endif
#ifdef CONFIG_PCI
for_each_compatible_node(np, "pci", "fsl,p4080-pcie") {
struct resource rsrc;
of_address_to_resource(np, 0, &rsrc);
if ((rsrc.start & 0xfffff) == primary_phb_addr)
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);
}
#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
pr_info("%s board from Freescale Semiconductor\n", ppc_md.name);
}
static const struct of_device_id of_device_ids[] __devinitconst = {
{
.compatible = "simple-bus"
},
{
.compatible = "fsl,rapidio-delta",
},
{}
};
int __init corenet_ds_publish_devices(void)
{
return of_platform_bus_probe(NULL, of_device_ids, NULL);
}
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