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linux-next/arch/mips/pci/pci-tx4939.c
Geert Uytterhoeven 2cec11d871 MIPS: TXx9: Modernize printing of kernel messages
- Convert from printk() to pr_*(),
  - Add missing continuations, to fix user-visible breakage,
  - Drop superfluous casts (u64 has been unsigned long long on all
    architectures for many years).

On rbtx4927, this restores the kernel output like:

    -TX4927 SDRAMC --
    - CR0:0000007e00000544
    - TR:32800030e
    +TX4927 SDRAMC -- CR0:0000007e00000544 TR:32800030e

and:

    -PCIC -- PCICLK:
    -Internal(33.3MHz)
    -
    +PCIC -- PCICLK:Internal(33.3MHz)

Fixes: 4bcc595ccd ("printk: reinstate KERN_CONT for printing continuation lines")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14646/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2017-01-03 16:34:32 +01:00

108 lines
2.6 KiB
C

/*
* Based on linux/arch/mips/txx9/rbtx4939/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/tx4939.h>
int __init tx4939_report_pciclk(void)
{
int pciclk = 0;
pr_info("PCIC --%s PCICLK:",
(__raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_PCI66) ?
" PCI66" : "");
if (__raw_readq(&tx4939_ccfgptr->pcfg) & TX4939_PCFG_PCICLKEN_ALL) {
pciclk = txx9_master_clock * 20 / 6;
if (!(__raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_PCI66))
pciclk /= 2;
pr_cont("Internal(%u.%uMHz)",
(pciclk + 50000) / 1000000,
((pciclk + 50000) / 100000) % 10);
} else {
pr_cont("External");
pciclk = -1;
}
pr_cont("\n");
return pciclk;
}
void __init tx4939_report_pci1clk(void)
{
unsigned int pciclk = txx9_master_clock * 20 / 6;
pr_info("PCIC1 -- PCICLK:%u.%uMHz\n",
(pciclk + 50000) / 1000000,
((pciclk + 50000) / 100000) % 10);
}
int __init tx4939_pcic1_map_irq(const struct pci_dev *dev, u8 slot)
{
if (get_tx4927_pcicptr(dev->bus->sysdata) == tx4939_pcic1ptr) {
switch (slot) {
case TX4927_PCIC_IDSEL_AD_TO_SLOT(31):
if (__raw_readq(&tx4939_ccfgptr->pcfg) &
TX4939_PCFG_ET0MODE)
return TXX9_IRQ_BASE + TX4939_IR_ETH(0);
break;
case TX4927_PCIC_IDSEL_AD_TO_SLOT(30):
if (__raw_readq(&tx4939_ccfgptr->pcfg) &
TX4939_PCFG_ET1MODE)
return TXX9_IRQ_BASE + TX4939_IR_ETH(1);
break;
}
return 0;
}
return -1;
}
int __init tx4939_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int irq = tx4939_pcic1_map_irq(dev, slot);
if (irq >= 0)
return irq;
irq = pin;
/* IRQ rotation */
irq--; /* 0-3 */
irq = (irq + 33 - slot) % 4;
irq++; /* 1-4 */
switch (irq) {
case 1:
irq = TXX9_IRQ_BASE + TX4939_IR_INTA;
break;
case 2:
irq = TXX9_IRQ_BASE + TX4939_IR_INTB;
break;
case 3:
irq = TXX9_IRQ_BASE + TX4939_IR_INTC;
break;
case 4:
irq = TXX9_IRQ_BASE + TX4939_IR_INTD;
break;
}
return irq;
}
void __init tx4939_setup_pcierr_irq(void)
{
if (request_irq(TXX9_IRQ_BASE + TX4939_IR_PCIERR,
tx4927_pcierr_interrupt,
0, "PCI error",
(void *)TX4939_PCIC_REG))
pr_warn("Failed to request irq for PCIERR\n");
}