Release 4.14 arch/powerpc/platforms/44x/canyonlands.c
/*
* This contain platform specific code for APM PPC460EX based Canyonlands
* board.
*
* Copyright (c) 2010, Applied Micro Circuits Corporation
* Author: Rupjyoti Sarmah <rsarmah@apm.com>
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <asm/pci-bridge.h>
#include <asm/ppc4xx.h>
#include <asm/udbg.h>
#include <asm/uic.h>
#include <linux/of_platform.h>
#include <linux/delay.h>
#include "44x.h"
#define BCSR_USB_EN 0x11
static const struct of_device_id ppc460ex_of_bus[] __initconst = {
{ .compatible = "ibm,plb4", },
{ .compatible = "ibm,opb", },
{ .compatible = "ibm,ebc", },
{ .compatible = "simple-bus", },
{},
};
static int __init ppc460ex_device_probe(void)
{
of_platform_bus_probe(NULL, ppc460ex_of_bus, NULL);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Rupjyoti Sarmah | 21 | 100.00% | 1 | 100.00% |
| Total | 21 | 100.00% | 1 | 100.00% |
machine_device_initcall(canyonlands, ppc460ex_device_probe);
/* Using this code only for the Canyonlands board. */
static int __init ppc460ex_probe(void)
{
if (of_machine_is_compatible("amcc,canyonlands")) {
pci_set_flags(PCI_REASSIGN_ALL_RSRC);
return 1;
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Rupjyoti Sarmah | 26 | 89.66% | 1 | 33.33% |
| Rob Herring | 2 | 6.90% | 1 | 33.33% |
| Benjamin Herrenschmidt | 1 | 3.45% | 1 | 33.33% |
| Total | 29 | 100.00% | 3 | 100.00% |
/* USB PHY fixup code on Canyonlands kit. */
static int __init ppc460ex_canyonlands_fixup(void)
{
u8 __iomem *bcsr ;
void __iomem *vaddr;
struct device_node *np;
int ret = 0;
np = of_find_compatible_node(NULL, NULL, "amcc,ppc460ex-bcsr");
if (!np) {
printk(KERN_ERR "failed did not find amcc, ppc460ex bcsr node\n");
return -ENODEV;
}
bcsr = of_iomap(np, 0);
of_node_put(np);
if (!bcsr) {
printk(KERN_CRIT "Could not remap bcsr\n");
ret = -ENODEV;
goto err_bcsr;
}
np = of_find_compatible_node(NULL, NULL, "ibm,ppc4xx-gpio");
if (!np) {
printk(KERN_ERR "failed did not find ibm,ppc4xx-gpio node\n");
return -ENODEV;
}
vaddr = of_iomap(np, 0);
of_node_put(np);
if (!vaddr) {
printk(KERN_CRIT "Could not get gpio node address\n");
ret = -ENODEV;
goto err_gpio;
}
/* Disable USB, through the BCSR7 bits */
setbits8(&bcsr[7], BCSR_USB_EN);
/* Wait for a while after reset */
msleep(100);
/* Enable USB here */
clrbits8(&bcsr[7], BCSR_USB_EN);
/*
* Configure multiplexed gpio16 and gpio19 as alternate1 output
* source after USB reset. In this configuration gpio16 will be
* USB2HStop and gpio19 will be USB2DStop. For more details refer to
* table 34-7 of PPC460EX user manual.
*/
setbits32((vaddr + GPIO0_OSRH), 0x42000000);
setbits32((vaddr + GPIO0_TSRH), 0x42000000);
err_gpio:
iounmap(vaddr);
err_bcsr:
iounmap(bcsr);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Rupjyoti Sarmah | 225 | 100.00% | 1 | 100.00% |
| Total | 225 | 100.00% | 1 | 100.00% |
machine_device_initcall(canyonlands, ppc460ex_canyonlands_fixup);
define_machine(canyonlands)
{
.name = "Canyonlands",
.probe = ppc460ex_probe,
.progress = udbg_progress,
.init_IRQ = uic_init_tree,
.get_irq = uic_get_irq,
.restart = ppc4xx_reset_system,
.calibrate_decr = generic_calibrate_decr,
};
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Rupjyoti Sarmah | 397 | 98.02% | 1 | 25.00% |
| Uwe Kleine-König | 5 | 1.23% | 1 | 25.00% |
| Rob Herring | 2 | 0.49% | 1 | 25.00% |
| Benjamin Herrenschmidt | 1 | 0.25% | 1 | 25.00% |
| Total | 405 | 100.00% | 4 | 100.00% |
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