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64 lines
1.6 KiB
64 lines
1.6 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* arch/sh/drivers/pci/fixups-rts7751r2d.c |
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* |
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* RTS7751R2D / LBOXRE2 PCI fixups |
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* |
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* Copyright (C) 2003 Lineo uSolutions, Inc. |
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* Copyright (C) 2004 Paul Mundt |
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* Copyright (C) 2007 Nobuhiro Iwamatsu |
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*/ |
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#include <linux/pci.h> |
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#include <mach/lboxre2.h> |
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#include <mach/r2d.h> |
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#include "pci-sh4.h" |
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#include <generated/machtypes.h> |
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#define PCIMCR_MRSET_OFF 0xBFFFFFFF |
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#define PCIMCR_RFSH_OFF 0xFFFFFFFB |
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static u8 rts7751r2d_irq_tab[] = { |
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IRQ_PCI_INTA, |
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IRQ_PCI_INTB, |
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IRQ_PCI_INTC, |
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IRQ_PCI_INTD, |
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}; |
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static char lboxre2_irq_tab[] = { |
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IRQ_ETH0, IRQ_ETH1, IRQ_INTA, IRQ_INTD, |
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}; |
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int pcibios_map_platform_irq(const struct pci_dev *pdev, u8 slot, u8 pin) |
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{ |
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if (mach_is_lboxre2()) |
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return lboxre2_irq_tab[slot]; |
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else |
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return rts7751r2d_irq_tab[slot]; |
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} |
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int pci_fixup_pcic(struct pci_channel *chan) |
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{ |
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unsigned long bcr1, mcr; |
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bcr1 = __raw_readl(SH7751_BCR1); |
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bcr1 |= 0x40080000; /* Enable Bit 19 BREQEN, set PCIC to slave */ |
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pci_write_reg(chan, bcr1, SH4_PCIBCR1); |
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/* Enable all interrupts, so we known what to fix */ |
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pci_write_reg(chan, 0x0000c3ff, SH4_PCIINTM); |
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pci_write_reg(chan, 0x0000380f, SH4_PCIAINTM); |
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pci_write_reg(chan, 0xfb900047, SH7751_PCICONF1); |
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pci_write_reg(chan, 0xab000001, SH7751_PCICONF4); |
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mcr = __raw_readl(SH7751_MCR); |
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mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF; |
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pci_write_reg(chan, mcr, SH4_PCIMCR); |
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pci_write_reg(chan, 0x0c000000, SH7751_PCICONF5); |
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pci_write_reg(chan, 0xd0000000, SH7751_PCICONF6); |
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pci_write_reg(chan, 0x0c000000, SH4_PCILAR0); |
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pci_write_reg(chan, 0x00000000, SH4_PCILAR1); |
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return 0; |
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}
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