d5341942d7
Aside of the usual motivation for constification, this function has a history of being abused a hook for interrupt and other fixups so I turned this function const ages ago in the MIPS code but it should be done treewide. Due to function pointer passing in varous places a few other functions had to be constified as well. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> To: Anton Vorontsov <avorontsov@mvista.com> To: Chris Metcalf <cmetcalf@tilera.com> To: Colin Cross <ccross@android.com> Acked-by: "David S. Miller" <davem@davemloft.net> To: Eric Miao <eric.y.miao@gmail.com> To: Erik Gilling <konkers@android.com> Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> To: "H. Peter Anvin" <hpa@zytor.com> To: Imre Kaloz <kaloz@openwrt.org> To: Ingo Molnar <mingo@redhat.com> To: Ivan Kokshaysky <ink@jurassic.park.msu.ru> To: Jesse Barnes <jbarnes@virtuousgeek.org> To: Krzysztof Halasa <khc@pm.waw.pl> To: Lennert Buytenhek <kernel@wantstofly.org> To: Matt Turner <mattst88@gmail.com> To: Nicolas Pitre <nico@fluxnic.net> To: Olof Johansson <olof@lixom.net> Acked-by: Paul Mundt <lethal@linux-sh.org> To: Richard Henderson <rth@twiddle.net> To: Russell King <linux@arm.linux.org.uk> To: Thomas Gleixner <tglx@linutronix.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: linux-alpha@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-pci@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: linux-tegra@vger.kernel.org Cc: sparclinux@vger.kernel.org Cc: x86@kernel.org Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
68 lines
1.7 KiB
C
68 lines
1.7 KiB
C
/*
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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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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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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[] __initdata = {
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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[] __initdata = {
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IRQ_ETH0, IRQ_ETH1, IRQ_INTA, IRQ_INTD,
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};
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int __init 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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