Release 4.14 arch/mips/pci/pci-tx4927.c
/*
* Based on linux/arch/mips/txx9/rbtx4938/setup.c,
* and RBTX49xx patch from CELF patch archive.
*
* Copyright 2001, 2003-2005 MontaVista Software Inc.
* Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org)
* (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <asm/txx9/generic.h>
#include <asm/txx9/tx4927.h>
int __init tx4927_report_pciclk(void)
{
int pciclk = 0;
pr_info("PCIC --%s PCICLK:",
(__raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_PCI66) ?
" PCI66" : "");
if (__raw_readq(&tx4927_ccfgptr->pcfg) & TX4927_PCFG_PCICLKEN_ALL) {
u64 ccfg = __raw_readq(&tx4927_ccfgptr->ccfg);
switch ((unsigned long)ccfg &
TX4927_CCFG_PCIDIVMODE_MASK) {
case TX4927_CCFG_PCIDIVMODE_2_5:
pciclk = txx9_cpu_clock * 2 / 5; break;
case TX4927_CCFG_PCIDIVMODE_3:
pciclk = txx9_cpu_clock / 3; break;
case TX4927_CCFG_PCIDIVMODE_5:
pciclk = txx9_cpu_clock / 5; break;
case TX4927_CCFG_PCIDIVMODE_6:
pciclk = txx9_cpu_clock / 6; break;
}
pr_cont("Internal(%u.%uMHz)",
(pciclk + 50000) / 1000000,
((pciclk + 50000) / 100000) % 10);
} else {
pr_cont("External");
pciclk = -1;
}
pr_cont("\n");
return pciclk;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Atsushi Nemoto | 155 | 97.48% | 1 | 50.00% |
| Geert Uytterhoeven | 4 | 2.52% | 1 | 50.00% |
| Total | 159 | 100.00% | 2 | 100.00% |
int __init tx4927_pciclk66_setup(void)
{
int pciclk;
/* Assert M66EN */
tx4927_ccfg_set(TX4927_CCFG_PCI66);
/* Double PCICLK (if possible) */
if (__raw_readq(&tx4927_ccfgptr->pcfg) & TX4927_PCFG_PCICLKEN_ALL) {
unsigned int pcidivmode = 0;
u64 ccfg = __raw_readq(&tx4927_ccfgptr->ccfg);
pcidivmode = (unsigned long)ccfg &
TX4927_CCFG_PCIDIVMODE_MASK;
switch (pcidivmode) {
case TX4927_CCFG_PCIDIVMODE_5:
case TX4927_CCFG_PCIDIVMODE_2_5:
pcidivmode = TX4927_CCFG_PCIDIVMODE_2_5;
pciclk = txx9_cpu_clock * 2 / 5;
break;
case TX4927_CCFG_PCIDIVMODE_6:
case TX4927_CCFG_PCIDIVMODE_3:
default:
pcidivmode = TX4927_CCFG_PCIDIVMODE_3;
pciclk = txx9_cpu_clock / 3;
}
tx4927_ccfg_change(TX4927_CCFG_PCIDIVMODE_MASK,
pcidivmode);
pr_debug("PCICLK: ccfg:%08lx\n",
(unsigned long)__raw_readq(&tx4927_ccfgptr->ccfg));
} else
pciclk = -1;
return pciclk;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Atsushi Nemoto | 133 | 99.25% | 1 | 50.00% |
| Geert Uytterhoeven | 1 | 0.75% | 1 | 50.00% |
| Total | 134 | 100.00% | 2 | 100.00% |
void __init tx4927_setup_pcierr_irq(void)
{
if (request_irq(TXX9_IRQ_BASE + TX4927_IR_PCIERR,
tx4927_pcierr_interrupt,
0, "PCI error",
(void *)TX4927_PCIC_REG))
pr_warn("Failed to request irq for PCIERR\n");
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Atsushi Nemoto | 32 | 94.12% | 1 | 33.33% |
| Yong Zhang | 1 | 2.94% | 1 | 33.33% |
| Geert Uytterhoeven | 1 | 2.94% | 1 | 33.33% |
| Total | 34 | 100.00% | 3 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Atsushi Nemoto | 338 | 97.69% | 2 | 40.00% |
| Geert Uytterhoeven | 6 | 1.73% | 1 | 20.00% |
| Ralf Bächle | 1 | 0.29% | 1 | 20.00% |
| Yong Zhang | 1 | 0.29% | 1 | 20.00% |
| Total | 346 | 100.00% | 5 | 100.00% |
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