1 // SPDX-License-Identifier: GPL-2.0 1
2 /*
3 * arch/sh/drivers/pci/fixups-landisk.c
4 *
5 * PCI initialization for the I-O DATA Device,
6 *
7 * Copyright (C) 2006 kogiidena
8 * Copyright (C) 2010 Nobuhiro Iwamatsu
9 */
10 #include <linux/kernel.h>
11 #include <linux/types.h>
12 #include <linux/init.h>
13 #include <linux/delay.h>
14 #include <linux/pci.h>
15 #include <linux/sh_intc.h>
16 #include "pci-sh4.h"
17
18 #define PCIMCR_MRSET_OFF 0xBFFFFFFF
19 #define PCIMCR_RFSH_OFF 0xFFFFFFFB
20
21 int pcibios_map_platform_irq(const struct pci_
22 {
23 /*
24 * slot0: pin1-4 = irq5,6,7,8
25 * slot1: pin1-4 = irq6,7,8,5
26 * slot2: pin1-4 = irq7,8,5,6
27 * slot3: pin1-4 = irq8,5,6,7
28 */
29 int irq = ((slot + pin - 1) & 0x3) + e
30
31 if ((slot | (pin - 1)) > 0x3) {
32 printk(KERN_WARNING "PCI: Bad
33 slot, pin - 1 + 'A');
34 return -1;
35 }
36 return irq;
37 }
38
39 int pci_fixup_pcic(struct pci_channel *chan)
40 {
41 unsigned long bcr1, mcr;
42
43 bcr1 = __raw_readl(SH7751_BCR1);
44 bcr1 |= 0x40080000; /* Enable Bit
45 pci_write_reg(chan, bcr1, SH4_PCIBCR1)
46
47 mcr = __raw_readl(SH7751_MCR);
48 mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMC
49 pci_write_reg(chan, mcr, SH4_PCIMCR);
50
51 pci_write_reg(chan, 0x0c000000, SH7751
52 pci_write_reg(chan, 0xd0000000, SH7751
53 pci_write_reg(chan, 0x0c000000, SH4_PC
54 pci_write_reg(chan, 0x00000000, SH4_PC
55
56 return 0;
57 }
58
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.