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author | Florian Fainelli <florian@openwrt.org> | 2007-06-02 23:13:51 +0000 |
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committer | Florian Fainelli <florian@openwrt.org> | 2007-06-02 23:13:51 +0000 |
commit | c879774b35a935881ad9780d355caa4d5c865336 (patch) | |
tree | c9081be22be55413a04325741f898d3d05d34788 /target/linux/adm5120-2.6/files/arch/mips/pci | |
parent | a1e0545d4b44f8502dd4c3ee6537db2473344824 (diff) | |
download | upstream-c879774b35a935881ad9780d355caa4d5c865336.tar.gz upstream-c879774b35a935881ad9780d355caa4d5c865336.tar.bz2 upstream-c879774b35a935881ad9780d355caa4d5c865336.zip |
IRQ handler rewrite by Gabor Juhos, uses C no longer assembly
SVN-Revision: 7464
Diffstat (limited to 'target/linux/adm5120-2.6/files/arch/mips/pci')
3 files changed, 171 insertions, 68 deletions
diff --git a/target/linux/adm5120-2.6/files/arch/mips/pci/fixup-adm5120.c b/target/linux/adm5120-2.6/files/arch/mips/pci/fixup-adm5120.c new file mode 100644 index 0000000000..9f65e350ad --- /dev/null +++ b/target/linux/adm5120-2.6/files/arch/mips/pci/fixup-adm5120.c @@ -0,0 +1,99 @@ +/* + * $Id$ + * + * ADM5120 specific PCI fixups + * + * Copyright (C) ADMtek Incorporated. + * Copyright (C) 2005 Jeroen Vreeken (pe1rxq@amsat.org) + * Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu> + * Copyright (C) 2007 OpenWrt.org + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + */ + +#include <linux/autoconf.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/pci_ids.h> +#include <linux/pci_regs.h> + +#include <asm/delay.h> +#include <asm/bootinfo.h> + +#include <asm/mach-adm5120/adm5120_info.h> +#include <asm/mach-adm5120/adm5120_defs.h> +#include <asm/mach-adm5120/adm5120_irq.h> + +static void adm5120_pci_fixup(struct pci_dev *dev) +{ + if (dev->devfn !=0) + return; + + /* setup COMMAND register */ + pci_write_config_word(dev, PCI_COMMAND, + (PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER)); + + /* setup CACHE_LINE_SIZE register */ + pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, 4); + + /* setting up BARS */ + pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, 0); + pci_write_config_dword(dev, PCI_BASE_ADDRESS_1, 0); +} + +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ADMTEK, PCI_DEVICE_ID_ADMTEK_ADM5120, + adm5120_pci_fixup); + + +int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +{ + int irq; + + irq = -1; +#if 1 + /* FIXME: this code should be working on all boards? */ + if (slot > 0 && slot < 4) + irq = ADM5120_IRQ_PCI0+slot-1; +#else + switch (mips_machtype) { + case MACH_ADM5120_RB_111: + case MACH_ADM5120_RB_112: + case MACH_ADM5120_RB_133: + case MACH_ADM5120_RB_133C: + case MACH_ADM5120_RB_153: + if (slot > 0 && slot < 4) + irq = ADM5120_IRQ_PCI0+slot-1; + break; + default: + if (slot > 1 && slot < 5) + irq = ADM5120_IRQ_PCI0+slot-2; + break; + } +#endif + printk(KERN_INFO "PCI: mapping irq for device %s, slot:%u, pin:%u, " + "irq:%d\n", pci_name(dev), slot, pin, irq); + + return irq; +} + +int pcibios_plat_dev_init(struct pci_dev *dev) +{ + return 0; +} + diff --git a/target/linux/adm5120-2.6/files/arch/mips/pci/ops-adm5120.c b/target/linux/adm5120-2.6/files/arch/mips/pci/ops-adm5120.c index 91dae89999..ff768033ec 100644 --- a/target/linux/adm5120-2.6/files/arch/mips/pci/ops-adm5120.c +++ b/target/linux/adm5120-2.6/files/arch/mips/pci/ops-adm5120.c @@ -1,17 +1,36 @@ /* - * Copyright (C) ADMtek Incorporated. - * Copyright (C) 2005 Jeroen Vreeken (pe1rxq@amsat.org) - * Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu> - * Copyright (C) 2007 OpenWrt.org + * $Id$ + * + * ADM5120 specific PCI operations + * + * Copyright (C) ADMtek Incorporated. + * Copyright (C) 2005 Jeroen Vreeken (pe1rxq@amsat.org) + * Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu> + * Copyright (C) 2007 OpenWrt.org + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * */ -#include <linux/autoconf.h> #include <linux/types.h> #include <linux/pci.h> #include <linux/kernel.h> #include <linux/init.h> -#include <adm5120_defs.h> +#include <asm/mach-adm5120/adm5120_defs.h> volatile u32* pci_config_address_reg = (volatile u32*)KSEG1ADDR(ADM5120_PCICFG_ADDR); volatile u32* pci_config_data_reg = (volatile u32*)KSEG1ADDR(ADM5120_PCICFG_DATA); @@ -24,14 +43,15 @@ static int pci_config_read(struct pci_bus *bus, unsigned int devfn, int where, *pci_config_address_reg = ((bus->number & 0xff) << 0x10) | ((devfn & 0xff) << 0x08) | (where & 0xfc) | PCI_ENABLE; switch (size) { - case 1: - *val = ((*pci_config_data_reg)>>((where&3)<<3))&0xff; - break; - case 2: - *val = ((*pci_config_data_reg)>>((where&3)<<3))&0xffff; - break; - default: - *val = (*pci_config_data_reg); + case 1: + *val = ((*pci_config_data_reg)>>((where&3)<<3))&0xff; + break; + case 2: + *val = ((*pci_config_data_reg)>>((where&3)<<3))&0xffff; + break; + default: + *val = (*pci_config_data_reg); + break; } return PCIBIOS_SUCCESSFUL; } @@ -42,16 +62,16 @@ static int pci_config_write(struct pci_bus *bus, unsigned int devfn, int where, *pci_config_address_reg = ((bus->number & 0xff) << 0x10) | ((devfn & 0xff) << 0x08) | (where & 0xfc) | PCI_ENABLE; switch (size) { - case 1: - *(volatile u8 *)(((int)pci_config_data_reg) + + case 1: + *(volatile u8 *)(((int)pci_config_data_reg) + (where & 3)) = val; - break; - case 2: - *(volatile u16 *)(((int)pci_config_data_reg) + + break; + case 2: + *(volatile u16 *)(((int)pci_config_data_reg) + (where & 2)) = (val); - break; - default: - *pci_config_data_reg = (val); + break; + default: + *pci_config_data_reg = (val); } return PCIBIOS_SUCCESSFUL; diff --git a/target/linux/adm5120-2.6/files/arch/mips/pci/pci-adm5120.c b/target/linux/adm5120-2.6/files/arch/mips/pci/pci-adm5120.c index 0fa3986e19..f104221046 100644 --- a/target/linux/adm5120-2.6/files/arch/mips/pci/pci-adm5120.c +++ b/target/linux/adm5120-2.6/files/arch/mips/pci/pci-adm5120.c @@ -1,38 +1,48 @@ /* - * Copyright (C) ADMtek Incorporated. - * Copyright (C) 2005 Jeroen Vreeken (pe1rxq@amsat.org) - * Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu> - * Copyright (C) 2007 OpenWrt.org + * $Id$ + * + * ADM5120 PCI Host Controller driver + * + * Copyright (C) ADMtek Incorporated. + * Copyright (C) 2005 Jeroen Vreeken (pe1rxq@amsat.org) + * Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu> + * Copyright (C) 2007 OpenWrt.org + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * */ - -#include <linux/autoconf.h> #include <linux/types.h> #include <linux/pci.h> #include <linux/kernel.h> #include <linux/init.h> -#include <adm5120_info.h> -#include <adm5120_defs.h> +#include <asm/mach-adm5120/adm5120_info.h> +#include <asm/mach-adm5120/adm5120_defs.h> +#include <asm/mach-adm5120/adm5120_irq.h> extern struct pci_ops adm5120_pci_ops; -#define PCI_CMM_IOACC_EN 0x1 -#define PCI_CMM_MEMACC_EN 0x2 -#define PCI_CMM_MASTER_EN 0x4 -#define PCI_CMM_DEF \ - (PCI_CMM_IOACC_EN | PCI_CMM_MEMACC_EN | PCI_CMM_MASTER_EN) - -#define PCI_DEF_CACHE_LINE_SZ 4 - - -struct resource pci_io_resource = { +static struct resource pci_io_resource = { .name = "ADM5120 PCI I/O", .start = ADM5120_PCIIO_BASE, .end = ADM5120_PCICFG_ADDR-1, .flags = IORESOURCE_IO }; -struct resource pci_mem_resource = { +static struct resource pci_mem_resource = { .name = "ADM5120 PCI MEM", .start = ADM5120_PCIMEM_BASE, .end = ADM5120_PCIIO_BASE-1, @@ -45,32 +55,6 @@ static struct pci_controller adm5120_controller = { .mem_resource = &pci_mem_resource, }; -int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin) -{ - if (slot < 2 || slot > 4) - return -1; - return slot + 4; -} - -static void adm5120_pci_fixup(struct pci_dev *dev) -{ - if (dev->devfn == 0) { - pci_write_config_word(dev, PCI_COMMAND, PCI_CMM_DEF); - pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, - PCI_DEF_CACHE_LINE_SZ); - pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, 0); - pci_write_config_dword(dev, PCI_BASE_ADDRESS_1, 0); - } -} - -DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, adm5120_pci_fixup); - - -int pcibios_plat_dev_init(struct pci_dev *dev) -{ - return 0; -} - static int __init adm5120_pci_setup(void) { int pci_bios; @@ -79,7 +63,7 @@ static int __init adm5120_pci_setup(void) printk("adm5120: system has %sPCI BIOS\n", pci_bios ? "" : "no "); if (pci_bios == 0) - return 1; + return -1; /* Avoid ISA compat ranges. */ PCIBIOS_MIN_IO = 0x00000000; |