Release 4.8 arch/powerpc/platforms/85xx/mpc85xx_ds.c
/*
* MPC85xx DS Board Setup
*
* Author Xianghua Xiao (x.xiao@freescale.com)
* Roy Zang <tie-fei.zang@freescale.com>
* - Add PCI/PCI Exprees support
* Copyright 2007 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/interrupt.h>
#include <linux/of_platform.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 <asm/i8259.h>
#include <asm/swiotlb.h>
#include <sysdev/fsl_soc.h>
#include <sysdev/fsl_pci.h>
#include "smp.h"
#include "mpc85xx.h"
#undef DEBUG
#ifdef DEBUG
#define DBG(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args)
#else
#define DBG(fmt, args...)
#endif
#ifdef CONFIG_PPC_I8259
static void mpc85xx_8259_cascade(struct irq_desc *desc)
{
struct irq_chip *chip = irq_desc_get_chip(desc);
unsigned int cascade_irq = i8259_irq();
if (cascade_irq != NO_IRQ) {
generic_handle_irq(cascade_irq);
}
chip->irq_eoi(&desc->irq_data);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| roy zang | roy zang | 35 | 68.63% | 1 | 25.00% |
| lennert buytenhek | lennert buytenhek | 14 | 27.45% | 1 | 25.00% |
| kumar gala | kumar gala | 1 | 1.96% | 1 | 25.00% |
| thomas gleixner | thomas gleixner | 1 | 1.96% | 1 | 25.00% |
| Total | 51 | 100.00% | 4 | 100.00% |
#endif /* CONFIG_PPC_I8259 */
void __init mpc85xx_ds_pic_init(void)
{
struct mpic *mpic;
#ifdef CONFIG_PPC_I8259
struct device_node *np;
struct device_node *cascade_node = NULL;
int cascade_irq;
#endif
if (of_machine_is_compatible("fsl,MPC8572DS-CAMP")) {
mpic = mpic_alloc(NULL, 0,
MPIC_NO_RESET |
MPIC_BIG_ENDIAN |
MPIC_SINGLE_DEST_CPU,
0, 256, " OpenPIC ");
} else {
mpic = mpic_alloc(NULL, 0,
MPIC_BIG_ENDIAN |
MPIC_SINGLE_DEST_CPU,
0, 256, " OpenPIC ");
}
BUG_ON(mpic == NULL);
mpic_init(mpic);
#ifdef CONFIG_PPC_I8259
/* Initialize the i8259 controller */
for_each_node_by_type(np, "interrupt-controller")
if (of_device_is_compatible(np, "chrp,iic")) {
cascade_node = np;
break;
}
if (cascade_node == NULL) {
printk(KERN_DEBUG "Could not find i8259 PIC\n");
return;
}
cascade_irq = irq_of_parse_and_map(cascade_node, 0);
if (cascade_irq == NO_IRQ) {
printk(KERN_ERR "Failed to map cascade interrupt\n");
return;
}
DBG("mpc85xxds: cascade mapped to irq %d\n", cascade_irq);
i8259_init(cascade_node, 0);
of_node_put(cascade_node);
irq_set_chained_handler(cascade_irq, mpc85xx_8259_cascade);
#endif /* CONFIG_PPC_I8259 */
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jon loeliger | jon loeliger | 145 | 75.92% | 1 | 7.69% |
| haiying wang | haiying wang | 25 | 13.09% | 1 | 7.69% |
| kyle moffett | kyle moffett | 9 | 4.71% | 3 | 23.08% |
| kumar gala | kumar gala | 7 | 3.66% | 3 | 23.08% |
| stephen rothwell | stephen rothwell | 1 | 0.52% | 1 | 7.69% |
| fabio baltieri | fabio baltieri | 1 | 0.52% | 1 | 7.69% |
| benjamin herrenschmidt | benjamin herrenschmidt | 1 | 0.52% | 1 | 7.69% |
| thomas gleixner | thomas gleixner | 1 | 0.52% | 1 | 7.69% |
| jason jin | jason jin | 1 | 0.52% | 1 | 7.69% |
| Total | 191 | 100.00% | 13 | 100.00% |
#ifdef CONFIG_PCI
extern int uli_exclude_device(struct pci_controller *hose,
u_char bus, u_char devfn);
static struct device_node *pci_with_uli;
static int mpc85xx_exclude_device(struct pci_controller *hose,
u_char bus, u_char devfn)
{
if (hose->dn == pci_with_uli)
return uli_exclude_device(hose, bus, devfn);
return PCIBIOS_SUCCESSFUL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| kumar gala | kumar gala | 22 | 57.89% | 1 | 20.00% |
| roy zang | roy zang | 9 | 23.68% | 1 | 20.00% |
| scott wood | scott wood | 3 | 7.89% | 1 | 20.00% |
| jon loeliger | jon loeliger | 3 | 7.89% | 1 | 20.00% |
| stephen rothwell | stephen rothwell | 1 | 2.63% | 1 | 20.00% |
| Total | 38 | 100.00% | 5 | 100.00% |
#endif /* CONFIG_PCI */
static void __init mpc85xx_ds_uli_init(void)
{
#ifdef CONFIG_PCI
struct device_node *node;
/* See if we have a ULI under the primary */
node = of_find_node_by_name(NULL, "uli1575");
while ((pci_with_uli = of_get_parent(node))) {
of_node_put(node);
node = pci_with_uli;
if (pci_with_uli == fsl_pci_primary) {
ppc_md.pci_exclude_device = mpc85xx_exclude_device;
break;
}
}
#endif
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| scott wood | scott wood | 28 | 42.42% | 1 | 14.29% |
| roy zang | roy zang | 23 | 34.85% | 1 | 14.29% |
| kumar gala | kumar gala | 14 | 21.21% | 4 | 57.14% |
| jia hongtao | jia hongtao | 1 | 1.52% | 1 | 14.29% |
| Total | 66 | 100.00% | 7 | 100.00% |
/*
* Setup the architecture
*/
static void __init mpc85xx_ds_setup_arch(void)
{
if (ppc_md.progress)
ppc_md.progress("mpc85xx_ds_setup_arch()", 0);
swiotlb_detect_4g();
fsl_pci_assign_primary();
mpc85xx_ds_uli_init();
mpc85xx_smp_init();
printk("MPC85xx DS board from Freescale Semiconductor\n");
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| scott wood | scott wood | 21 | 51.22% | 1 | 14.29% |
| jia hongtao | jia hongtao | 7 | 17.07% | 2 | 28.57% |
| kumar gala | kumar gala | 7 | 17.07% | 2 | 28.57% |
| roy zang | roy zang | 5 | 12.20% | 1 | 14.29% |
| fujita tomonori | fujita tomonori | 1 | 2.44% | 1 | 14.29% |
| Total | 41 | 100.00% | 7 | 100.00% |
/*
* Called very early, device-tree isn't unflattened
*/
static int __init mpc8544_ds_probe(void)
{
return !!of_machine_is_compatible("MPC8544DS");
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| roy zang | roy zang | 11 | 64.71% | 1 | 25.00% |
| scott wood | scott wood | 3 | 17.65% | 1 | 25.00% |
| kumar gala | kumar gala | 2 | 11.76% | 1 | 25.00% |
| benjamin herrenschmidt | benjamin herrenschmidt | 1 | 5.88% | 1 | 25.00% |
| Total | 17 | 100.00% | 4 | 100.00% |
machine_arch_initcall(mpc8544_ds, mpc85xx_common_publish_devices);
machine_arch_initcall(mpc8572_ds, mpc85xx_common_publish_devices);
machine_arch_initcall(p2020_ds, mpc85xx_common_publish_devices);
machine_arch_initcall(mpc8544_ds, swiotlb_setup_bus_notifier);
machine_arch_initcall(mpc8572_ds, swiotlb_setup_bus_notifier);
machine_arch_initcall(p2020_ds, swiotlb_setup_bus_notifier);
/*
* Called very early, device-tree isn't unflattened
*/
static int __init mpc8572_ds_probe(void)
{
return !!of_machine_is_compatible("fsl,MPC8572DS");
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| kumar gala | kumar gala | 13 | 76.47% | 1 | 33.33% |
| scott wood | scott wood | 3 | 17.65% | 1 | 33.33% |
| benjamin herrenschmidt | benjamin herrenschmidt | 1 | 5.88% | 1 | 33.33% |
| Total | 17 | 100.00% | 3 | 100.00% |
/*
* Called very early, device-tree isn't unflattened
*/
static int __init p2020_ds_probe(void)
{
return !!of_machine_is_compatible("fsl,P2020DS");
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| kumar gala | kumar gala | 13 | 76.47% | 2 | 50.00% |
| scott wood | scott wood | 3 | 17.65% | 1 | 25.00% |
| benjamin herrenschmidt | benjamin herrenschmidt | 1 | 5.88% | 1 | 25.00% |
| Total | 17 | 100.00% | 4 | 100.00% |
define_machine(mpc8544_ds)
{
.name = "MPC8544 DS",
.probe = mpc8544_ds_probe,
.setup_arch = mpc85xx_ds_setup_arch,
.init_IRQ = mpc85xx_ds_pic_init,
#ifdef CONFIG_PCI
.pcibios_fixup_bus = fsl_pcibios_fixup_bus,
.pcibios_fixup_phb = fsl_pcibios_fixup_phb,
#endif
.get_irq = mpic_get_irq,
.restart = fsl_rstcr_restart,
.calibrate_decr = generic_calibrate_decr,
.progress = udbg_progress,
};
define_machine(mpc8572_ds)
{
.name = "MPC8572 DS",
.probe = mpc8572_ds_probe,
.setup_arch = mpc85xx_ds_setup_arch,
.init_IRQ = mpc85xx_ds_pic_init,
#ifdef CONFIG_PCI
.pcibios_fixup_bus = fsl_pcibios_fixup_bus,
.pcibios_fixup_phb = fsl_pcibios_fixup_phb,
#endif
.get_irq = mpic_get_irq,
.restart = fsl_rstcr_restart,
.calibrate_decr = generic_calibrate_decr,
.progress = udbg_progress,
};
define_machine(p2020_ds)
{
.name = "P2020 DS",
.probe = p2020_ds_probe,
.setup_arch = mpc85xx_ds_setup_arch,
.init_IRQ = mpc85xx_ds_pic_init,
#ifdef CONFIG_PCI
.pcibios_fixup_bus = fsl_pcibios_fixup_bus,
.pcibios_fixup_phb = fsl_pcibios_fixup_phb,
#endif
.get_irq = mpic_get_irq,
.restart = fsl_rstcr_restart,
.calibrate_decr = generic_calibrate_decr,
.progress = udbg_progress,
};
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jon loeliger | jon loeliger | 241 | 30.24% | 1 | 2.94% |
| kumar gala | kumar gala | 240 | 30.11% | 10 | 29.41% |
| roy zang | roy zang | 140 | 17.57% | 1 | 2.94% |
| scott wood | scott wood | 68 | 8.53% | 1 | 2.94% |
| haiying wang | haiying wang | 25 | 3.14% | 1 | 2.94% |
| dongsheng wang | dongsheng wang | 15 | 1.88% | 1 | 2.94% |
| lennert buytenhek | lennert buytenhek | 14 | 1.76% | 1 | 2.94% |
| kyle moffett | kyle moffett | 12 | 1.51% | 4 | 11.76% |
| jia hongtao | jia hongtao | 11 | 1.38% | 2 | 5.88% |
| sebastian andrzej siewior | sebastian andrzej siewior | 8 | 1.00% | 1 | 2.94% |
| jason jin | jason jin | 6 | 0.75% | 1 | 2.94% |
| dmitry eremin-baryshkov | dmitry eremin-baryshkov | 6 | 0.75% | 2 | 5.88% |
| benjamin herrenschmidt | benjamin herrenschmidt | 4 | 0.50% | 2 | 5.88% |
| stephen rothwell | stephen rothwell | 2 | 0.25% | 2 | 5.88% |
| thomas gleixner | thomas gleixner | 2 | 0.25% | 1 | 2.94% |
| fujita tomonori | fujita tomonori | 1 | 0.13% | 1 | 2.94% |
| harvey harrison | harvey harrison | 1 | 0.13% | 1 | 2.94% |
| fabio baltieri | fabio baltieri | 1 | 0.13% | 1 | 2.94% |
| Total | 797 | 100.00% | 34 | 100.00% |
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