1e76dff22c
Removed the need for asm/mpc86xx.h as it was only used in mpc86xx_smp.c and just moved the defines it cared about into there. Also fixed up the ioremap to only map the one 4k page we need access to and to iounmap when we are done. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
176 lines
3.8 KiB
C
176 lines
3.8 KiB
C
/*
|
|
* 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 <asm/system.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/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;
|
|
#endif
|
|
|
|
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);
|
|
}
|
|
|
|
ppc_md.pci_exclude_device = mpc86xx_exclude_device;
|
|
|
|
#endif
|
|
|
|
printk("MPC86xx HPCN board from Freescale Semiconductor\n");
|
|
|
|
#ifdef CONFIG_SMP
|
|
mpc86xx_smp_init();
|
|
#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,rapidio-delta", },
|
|
{ .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);
|
|
|
|
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
|
|
};
|