Gabor Juhos
17 years ago
parent
af21798b77
commit
73b2555da2
@ -1,175 +0,0 @@ |
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/*
|
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* $Id$ |
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* |
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* ADM5120 specific PCI fixups |
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* |
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* Copyright (C) ADMtek Incorporated. |
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* Copyright (C) 2005 Jeroen Vreeken (pe1rxq@amsat.org) |
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* Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org> |
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* Copyright (C) 2007 OpenWrt.org |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the |
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
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* Boston, MA 02110-1301, USA. |
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* |
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*/ |
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#include <linux/types.h> |
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#include <linux/kernel.h> |
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#include <linux/init.h> |
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#include <linux/pci.h> |
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#include <linux/pci_ids.h> |
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#include <linux/pci_regs.h> |
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#include <asm/delay.h> |
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#include <asm/bootinfo.h> |
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#include <asm/mach-adm5120/adm5120_info.h> |
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#include <asm/mach-adm5120/adm5120_defs.h> |
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#include <asm/mach-adm5120/adm5120_irq.h> |
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struct adm5120_pci_irq { |
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u8 slot; |
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u8 func; |
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u8 pin; |
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unsigned irq; |
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}; |
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#define PCIIRQ(s,f,p,i) { \ |
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.slot = (s), \
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.func = (f), \
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.pin = (p), \
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.irq = (i) \
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} |
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static struct adm5120_pci_irq default_pci_irqs[] __initdata = { |
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PCIIRQ(2, 0, 1, ADM5120_IRQ_PCI0), |
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}; |
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static struct adm5120_pci_irq rb1xx_pci_irqs[] __initdata = { |
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PCIIRQ(1, 0, 1, ADM5120_IRQ_PCI0), |
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PCIIRQ(2, 0, 1, ADM5120_IRQ_PCI1), |
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PCIIRQ(3, 0, 1, ADM5120_IRQ_PCI2) |
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}; |
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static struct adm5120_pci_irq cas771_pci_irqs[] __initdata = { |
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PCIIRQ(2, 0, 1, ADM5120_IRQ_PCI0), |
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PCIIRQ(3, 0, 1, ADM5120_IRQ_PCI1), |
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PCIIRQ(3, 2, 3, ADM5120_IRQ_PCI2) |
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}; |
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static struct adm5120_pci_irq np28g_pci_irqs[] __initdata = { |
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PCIIRQ(2, 0, 1, ADM5120_IRQ_PCI0), |
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PCIIRQ(3, 0, 1, ADM5120_IRQ_PCI0), |
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PCIIRQ(3, 1, 2, ADM5120_IRQ_PCI1), |
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PCIIRQ(3, 2, 3, ADM5120_IRQ_PCI2) |
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}; |
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#define GETMAP(n) do { \ |
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nr_irqs = ARRAY_SIZE(n ## _pci_irqs); \
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p = n ## _pci_irqs; \
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} while (0) |
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int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin) |
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{ |
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struct adm5120_pci_irq *p; |
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int nr_irqs; |
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int i; |
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int irq; |
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irq = -1; |
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if (slot < 1 || slot > 3) { |
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printk(KERN_ALERT "PCI: slot number %u is not supported\n", |
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slot); |
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goto out; |
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} |
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GETMAP(default); |
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switch (mips_machtype) { |
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case MACH_ADM5120_RB_111: |
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case MACH_ADM5120_RB_112: |
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case MACH_ADM5120_RB_133: |
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case MACH_ADM5120_RB_133C: |
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case MACH_ADM5120_RB_153: |
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GETMAP(rb1xx); |
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break; |
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case MACH_ADM5120_NP28G: |
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GETMAP(np28g); |
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break; |
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case MACH_ADM5120_P335: |
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case MACH_ADM5120_P334WT: |
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/* using default mapping */ |
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break; |
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case MACH_ADM5120_CAS771: |
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GETMAP(cas771); |
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break; |
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case MACH_ADM5120_NP27G: |
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case MACH_ADM5120_NP28GHS: |
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case MACH_ADM5120_WP54AG: |
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case MACH_ADM5120_WP54G: |
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case MACH_ADM5120_WP54G_WRT: |
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case MACH_ADM5120_WPP54AG: |
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case MACH_ADM5120_WPP54G: |
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default: |
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printk(KERN_ALERT "PCI: irq map is unknown, using defaults.\n"); |
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break; |
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} |
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for (i=0; i<nr_irqs; i++, p++) { |
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if ((p->slot == slot) && (PCI_FUNC(dev->devfn) == p->func) && |
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(p->pin == pin)) { |
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irq = p->irq; |
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break; |
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} |
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} |
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if (irq < 0) { |
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printk(KERN_ALERT "PCI: no irq found for %s pin:%u\n", |
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pci_name(dev), pin); |
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} else { |
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printk(KERN_INFO "PCI: mapping irq for %s pin:%u, irq:%d\n", |
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pci_name(dev), pin, irq); |
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} |
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out: |
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return irq; |
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} |
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static void adm5120_pci_fixup(struct pci_dev *dev) |
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{ |
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if (dev->devfn != 0) |
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return; |
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/* setup COMMAND register */ |
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pci_write_config_word(dev, PCI_COMMAND, |
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(PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER)); |
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/* setup CACHE_LINE_SIZE register */ |
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pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, 4); |
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/* setting up BARS */ |
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pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, 0); |
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pci_write_config_dword(dev, PCI_BASE_ADDRESS_1, 0); |
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} |
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ADMTEK, PCI_DEVICE_ID_ADMTEK_ADM5120, |
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adm5120_pci_fixup); |
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int pcibios_plat_dev_init(struct pci_dev *dev) |
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{ |
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return 0; |
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} |
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@ -1,143 +0,0 @@ |
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/*
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* $Id$ |
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* |
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* ADM5120 specific PCI operations |
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* |
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* Copyright (C) ADMtek Incorporated. |
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* Copyright (C) 2005 Jeroen Vreeken (pe1rxq@amsat.org) |
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* Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org> |
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* Copyright (C) 2007 OpenWrt.org |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the |
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
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* Boston, MA 02110-1301, USA. |
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* |
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*/ |
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#include <linux/types.h> |
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#include <linux/kernel.h> |
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#include <linux/pci.h> |
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#include <linux/spinlock.h> |
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#include <asm/mach-adm5120/adm5120_defs.h> |
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#define DEBUG 0 |
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#if DEBUG |
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#define DBG(f, ...) printk(f, ## __VA_ARGS__ ) |
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#else |
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#define DBG(f, ...) |
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#endif |
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#define PCI_ENABLE 0x80000000 |
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static spinlock_t pci_lock = SPIN_LOCK_UNLOCKED; |
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static inline void write_cfgaddr(u32 addr) |
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{ |
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*(volatile u32*)KSEG1ADDR(ADM5120_PCICFG_ADDR) = (addr | PCI_ENABLE); |
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} |
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static inline void write_cfgdata(u32 data) |
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{ |
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*(volatile u32*)KSEG1ADDR(ADM5120_PCICFG_DATA) = data; |
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} |
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static inline u32 read_cfgdata(void) |
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{ |
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return (*(volatile u32*)KSEG1ADDR(ADM5120_PCICFG_DATA)); |
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} |
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static inline u32 mkaddr(struct pci_bus *bus, unsigned int devfn, int where) |
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{ |
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return (((bus->number & 0xFF) << 16) | ((devfn & 0xFF) << 8) | \
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(where & 0xFC)); |
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} |
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static int pci_config_read(struct pci_bus *bus, unsigned int devfn, int where, |
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int size, u32 *val) |
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{ |
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unsigned long flags; |
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u32 data; |
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spin_lock_irqsave(&pci_lock, flags); |
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write_cfgaddr(mkaddr(bus,devfn,where)); |
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data = read_cfgdata();
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DBG("PCI: cfg_read %02u.%02u.%01u/%02X:%01d, cfg:0x%08X", |
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bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn), where, size, data); |
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switch (size) { |
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case 1: |
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if (where & 1) |
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data >>= 8; |
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if (where & 2) |
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data >>= 16; |
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data &= 0xFF; |
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break; |
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case 2: |
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if (where & 2) |
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data >>= 16; |
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data &= 0xFFFF; |
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break; |
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} |
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*val = data; |
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DBG(", 0x%08X returned\n", data); |
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spin_unlock_irqrestore(&pci_lock, flags); |
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return PCIBIOS_SUCCESSFUL; |
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} |
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static int pci_config_write(struct pci_bus *bus, unsigned int devfn, int where, |
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int size, u32 val) |
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{ |
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unsigned long flags; |
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u32 data; |
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int s; |
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spin_lock_irqsave(&pci_lock, flags); |
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write_cfgaddr(mkaddr(bus,devfn,where)); |
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data = read_cfgdata(); |
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DBG("PCI: cfg_write %02u.%02u.%01u/%02X:%01d, cfg:0x%08X", |
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bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn), where, size, data); |
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switch (size) { |
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case 1: |
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s = ((where & 3) << 3); |
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data &= ~(0xFF << s); |
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data |= ((val & 0xFF) << s); |
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break; |
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case 2: |
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s = ((where & 2) << 4); |
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data &= ~(0xFFFF << s); |
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data |= ((val & 0xFFFF) << s); |
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break; |
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case 4: |
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data = val; |
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break; |
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} |
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write_cfgdata(data); |
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DBG(", 0x%08X written\n", data); |
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spin_unlock_irqrestore(&pci_lock, flags); |
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return PCIBIOS_SUCCESSFUL; |
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} |
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struct pci_ops adm5120_pci_ops = { |
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.read = pci_config_read, |
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.write = pci_config_write, |
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}; |
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