cregit-Linux how code gets into the kernel

Release 4.14 arch/sh/drivers/pci/fixups-landisk.c

/*
 * arch/sh/drivers/pci/fixups-landisk.c
 *
 * PCI initialization for the I-O DATA Device, Inc. LANDISK board
 *
 * Copyright (C) 2006 kogiidena
 * Copyright (C) 2010 Nobuhiro Iwamatsu
 *
 * May be copied or modified under the terms of the GNU General Public
 * License.  See linux/COPYING for more information.
 */
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/sh_intc.h>
#include "pci-sh4.h"


#define PCIMCR_MRSET_OFF	0xBFFFFFFF

#define PCIMCR_RFSH_OFF		0xFFFFFFFB


int pcibios_map_platform_irq(const struct pci_dev *pdev, u8 slot, u8 pin) { /* * slot0: pin1-4 = irq5,6,7,8 * slot1: pin1-4 = irq6,7,8,5 * slot2: pin1-4 = irq7,8,5,6 * slot3: pin1-4 = irq8,5,6,7 */ int irq = ((slot + pin - 1) & 0x3) + evt2irq(0x2a0); if ((slot | (pin - 1)) > 0x3) { printk(KERN_WARNING "PCI: Bad IRQ mapping request for slot %d pin %c\n", slot, pin - 1 + 'A'); return -1; } return irq; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mundt7397.33%250.00%
Nobuhiro Iwamatsu11.33%125.00%
Ralf Bächle11.33%125.00%
Total75100.00%4100.00%


int pci_fixup_pcic(struct pci_channel *chan) { unsigned long bcr1, mcr; bcr1 = __raw_readl(SH7751_BCR1); bcr1 |= 0x40080000; /* Enable Bit 19 BREQEN, set PCIC to slave */ pci_write_reg(chan, bcr1, SH4_PCIBCR1); mcr = __raw_readl(SH7751_MCR); mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF; pci_write_reg(chan, mcr, SH4_PCIMCR); pci_write_reg(chan, 0x0c000000, SH7751_PCICONF5); pci_write_reg(chan, 0xd0000000, SH7751_PCICONF6); pci_write_reg(chan, 0x0c000000, SH4_PCILAR0); pci_write_reg(chan, 0x00000000, SH4_PCILAR1); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Nobuhiro Iwamatsu102100.00%1100.00%
Total102100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Nobuhiro Iwamatsu11254.11%125.00%
Paul Mundt9445.41%250.00%
Ralf Bächle10.48%125.00%
Total207100.00%4100.00%
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