From 252161eccd1a44f32a506d0fedb424d4ff84e4dc Mon Sep 17 00:00:00 2001 From: Yoichi Yuasa Date: Wed, 14 Mar 2007 21:51:26 +0900 Subject: [MIPS] merge GT64111 PCI routines and GT64120 PCI_0 routines This patch has merged GT64111 PCI routines and GT64120 PCI_0 routines. GT64111 PCI is almost the same as GT64120's PCI_0. This patch don't change GT64120 PCI routines. Signed-off-by: Yoichi Yuasa Signed-off-by: Ralf Baechle --- arch/mips/pci/Makefile | 3 +- arch/mips/pci/ops-gt64111.c | 100 -------------------------- arch/mips/pci/ops-gt64120.c | 152 --------------------------------------- arch/mips/pci/ops-gt64xxx_pci0.c | 152 +++++++++++++++++++++++++++++++++++++++ arch/mips/pci/pci-lasat.c | 4 +- arch/mips/pci/pci-ocelot.c | 2 +- 6 files changed, 156 insertions(+), 257 deletions(-) delete mode 100644 arch/mips/pci/ops-gt64111.c delete mode 100644 arch/mips/pci/ops-gt64120.c create mode 100644 arch/mips/pci/ops-gt64xxx_pci0.c (limited to 'arch/mips/pci') diff --git a/arch/mips/pci/Makefile b/arch/mips/pci/Makefile index bf85995ca04..df487c063b1 100644 --- a/arch/mips/pci/Makefile +++ b/arch/mips/pci/Makefile @@ -8,8 +8,7 @@ obj-y += pci.o pci-dac.o # PCI bus host bridge specific code # obj-$(CONFIG_MIPS_BONITO64) += ops-bonito64.o -obj-$(CONFIG_MIPS_GT64111) += ops-gt64111.o -obj-$(CONFIG_MIPS_GT64120) += ops-gt64120.o +obj-$(CONFIG_PCI_GT64XXX_PCI0) += ops-gt64xxx_pci0.o obj-$(CONFIG_PCI_MARVELL) += ops-marvell.o obj-$(CONFIG_MIPS_MSC) += ops-msc.o obj-$(CONFIG_MIPS_NILE4) += ops-nile4.o diff --git a/arch/mips/pci/ops-gt64111.c b/arch/mips/pci/ops-gt64111.c deleted file mode 100644 index ecd3991bd0e..00000000000 --- a/arch/mips/pci/ops-gt64111.c +++ /dev/null @@ -1,100 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 1995, 1996, 1997, 2002 by Ralf Baechle - * Copyright (C) 2001, 2002, 2003 by Liam Davies (ldavies@agile.tv) - */ -#include -#include -#include -#include - -#include -#include -#include - -#include - -/* - * Device 31 on the GT64111 is used to generate PCI special - * cycles, so we shouldn't expected to find a device there ... - */ -static inline int pci_range_ck(struct pci_bus *bus, unsigned int devfn) -{ - if (bus->number == 0 && PCI_SLOT(devfn) < 31) - return 0; - - return -1; -} - -static int gt64111_pci_read_config(struct pci_bus *bus, unsigned int devfn, - int where, int size, u32 * val) -{ - if (pci_range_ck(bus, devfn)) - return PCIBIOS_DEVICE_NOT_FOUND; - - switch (size) { - case 4: - PCI_CFG_SET(devfn, where); - *val = GT_READ(GT_PCI0_CFGDATA_OFS); - return PCIBIOS_SUCCESSFUL; - - case 2: - PCI_CFG_SET(devfn, (where & ~0x3)); - *val = GT_READ(GT_PCI0_CFGDATA_OFS) - >> ((where & 3) * 8); - return PCIBIOS_SUCCESSFUL; - - case 1: - PCI_CFG_SET(devfn, (where & ~0x3)); - *val = GT_READ(GT_PCI0_CFGDATA_OFS) - >> ((where & 3) * 8); - return PCIBIOS_SUCCESSFUL; - } - - return PCIBIOS_BAD_REGISTER_NUMBER; -} - -static int gt64111_pci_write_config(struct pci_bus *bus, unsigned int devfn, - int where, int size, u32 val) -{ - u32 tmp; - - if (pci_range_ck(bus, devfn)) - return PCIBIOS_DEVICE_NOT_FOUND; - - switch (size) { - case 4: - PCI_CFG_SET(devfn, where); - GT_WRITE(GT_PCI0_CFGDATA_OFS, val); - - return PCIBIOS_SUCCESSFUL; - - case 2: - PCI_CFG_SET(devfn, (where & ~0x3)); - tmp = GT_READ(GT_PCI0_CFGDATA_OFS); - tmp &= ~(0xffff << ((where & 0x3) * 8)); - tmp |= (val << ((where & 0x3) * 8)); - GT_WRITE(GT_PCI0_CFGDATA_OFS, tmp); - - return PCIBIOS_SUCCESSFUL; - - case 1: - PCI_CFG_SET(devfn, (where & ~0x3)); - tmp = GT_READ(GT_PCI0_CFGDATA_OFS); - tmp &= ~(0xff << ((where & 0x3) * 8)); - tmp |= (val << ((where & 0x3) * 8)); - GT_WRITE(GT_PCI0_CFGDATA_OFS, tmp); - - return PCIBIOS_SUCCESSFUL; - } - - return PCIBIOS_BAD_REGISTER_NUMBER; -} - -struct pci_ops gt64111_pci_ops = { - .read = gt64111_pci_read_config, - .write = gt64111_pci_write_config, -}; diff --git a/arch/mips/pci/ops-gt64120.c b/arch/mips/pci/ops-gt64120.c deleted file mode 100644 index 6335844d607..00000000000 --- a/arch/mips/pci/ops-gt64120.c +++ /dev/null @@ -1,152 +0,0 @@ -/* - * Copyright (C) 1999, 2000, 2004 MIPS Technologies, Inc. - * All rights reserved. - * Authors: Carsten Langgaard - * Maciej W. Rozycki - * - * This program is free software; you can distribute it and/or modify it - * under the terms of the GNU General Public License (Version 2) as - * published by the Free Software Foundation. - * - * This program is distributed in the hope 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., - * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. - */ -#include -#include -#include - -#include - -#define PCI_ACCESS_READ 0 -#define PCI_ACCESS_WRITE 1 - -/* - * PCI configuration cycle AD bus definition - */ -/* Type 0 */ -#define PCI_CFG_TYPE0_REG_SHF 0 -#define PCI_CFG_TYPE0_FUNC_SHF 8 - -/* Type 1 */ -#define PCI_CFG_TYPE1_REG_SHF 0 -#define PCI_CFG_TYPE1_FUNC_SHF 8 -#define PCI_CFG_TYPE1_DEV_SHF 11 -#define PCI_CFG_TYPE1_BUS_SHF 16 - -static int gt64120_pcibios_config_access(unsigned char access_type, - struct pci_bus *bus, unsigned int devfn, int where, u32 * data) -{ - unsigned char busnum = bus->number; - u32 intr; - - if ((busnum == 0) && (devfn >= PCI_DEVFN(31, 0))) - return -1; /* Because of a bug in the galileo (for slot 31). */ - - /* Clear cause register bits */ - GT_WRITE(GT_INTRCAUSE_OFS, ~(GT_INTRCAUSE_MASABORT0_BIT | - GT_INTRCAUSE_TARABORT0_BIT)); - - /* Setup address */ - GT_WRITE(GT_PCI0_CFGADDR_OFS, - (busnum << GT_PCI0_CFGADDR_BUSNUM_SHF) | - (devfn << GT_PCI0_CFGADDR_FUNCTNUM_SHF) | - ((where / 4) << GT_PCI0_CFGADDR_REGNUM_SHF) | - GT_PCI0_CFGADDR_CONFIGEN_BIT); - - if (access_type == PCI_ACCESS_WRITE) { - if (busnum == 0 && PCI_SLOT(devfn) == 0) { - /* - * The Galileo system controller is acting - * differently than other devices. - */ - GT_WRITE(GT_PCI0_CFGDATA_OFS, *data); - } else - __GT_WRITE(GT_PCI0_CFGDATA_OFS, *data); - } else { - if (busnum == 0 && PCI_SLOT(devfn) == 0) { - /* - * The Galileo system controller is acting - * differently than other devices. - */ - *data = GT_READ(GT_PCI0_CFGDATA_OFS); - } else - *data = __GT_READ(GT_PCI0_CFGDATA_OFS); - } - - /* Check for master or target abort */ - intr = GT_READ(GT_INTRCAUSE_OFS); - - if (intr & (GT_INTRCAUSE_MASABORT0_BIT | GT_INTRCAUSE_TARABORT0_BIT)) { - /* Error occurred */ - - /* Clear bits */ - GT_WRITE(GT_INTRCAUSE_OFS, ~(GT_INTRCAUSE_MASABORT0_BIT | - GT_INTRCAUSE_TARABORT0_BIT)); - - return -1; - } - - return 0; -} - - -/* - * We can't address 8 and 16 bit words directly. Instead we have to - * read/write a 32bit word and mask/modify the data we actually want. - */ -static int gt64120_pcibios_read(struct pci_bus *bus, unsigned int devfn, - int where, int size, u32 * val) -{ - u32 data = 0; - - if (gt64120_pcibios_config_access(PCI_ACCESS_READ, bus, devfn, where, - &data)) - return PCIBIOS_DEVICE_NOT_FOUND; - - if (size == 1) - *val = (data >> ((where & 3) << 3)) & 0xff; - else if (size == 2) - *val = (data >> ((where & 3) << 3)) & 0xffff; - else - *val = data; - - return PCIBIOS_SUCCESSFUL; -} - -static int gt64120_pcibios_write(struct pci_bus *bus, unsigned int devfn, - int where, int size, u32 val) -{ - u32 data = 0; - - if (size == 4) - data = val; - else { - if (gt64120_pcibios_config_access(PCI_ACCESS_READ, bus, devfn, - where, &data)) - return PCIBIOS_DEVICE_NOT_FOUND; - - if (size == 1) - data = (data & ~(0xff << ((where & 3) << 3))) | - (val << ((where & 3) << 3)); - else if (size == 2) - data = (data & ~(0xffff << ((where & 3) << 3))) | - (val << ((where & 3) << 3)); - } - - if (gt64120_pcibios_config_access(PCI_ACCESS_WRITE, bus, devfn, where, - &data)) - return PCIBIOS_DEVICE_NOT_FOUND; - - return PCIBIOS_SUCCESSFUL; -} - -struct pci_ops gt64120_pci_ops = { - .read = gt64120_pcibios_read, - .write = gt64120_pcibios_write -}; diff --git a/arch/mips/pci/ops-gt64xxx_pci0.c b/arch/mips/pci/ops-gt64xxx_pci0.c new file mode 100644 index 00000000000..3d896c5f413 --- /dev/null +++ b/arch/mips/pci/ops-gt64xxx_pci0.c @@ -0,0 +1,152 @@ +/* + * Copyright (C) 1999, 2000, 2004 MIPS Technologies, Inc. + * All rights reserved. + * Authors: Carsten Langgaard + * Maciej W. Rozycki + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope 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., + * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. + */ +#include +#include +#include + +#include + +#define PCI_ACCESS_READ 0 +#define PCI_ACCESS_WRITE 1 + +/* + * PCI configuration cycle AD bus definition + */ +/* Type 0 */ +#define PCI_CFG_TYPE0_REG_SHF 0 +#define PCI_CFG_TYPE0_FUNC_SHF 8 + +/* Type 1 */ +#define PCI_CFG_TYPE1_REG_SHF 0 +#define PCI_CFG_TYPE1_FUNC_SHF 8 +#define PCI_CFG_TYPE1_DEV_SHF 11 +#define PCI_CFG_TYPE1_BUS_SHF 16 + +static int gt64xxx_pci0_pcibios_config_access(unsigned char access_type, + struct pci_bus *bus, unsigned int devfn, int where, u32 * data) +{ + unsigned char busnum = bus->number; + u32 intr; + + if ((busnum == 0) && (devfn >= PCI_DEVFN(31, 0))) + return -1; /* Because of a bug in the galileo (for slot 31). */ + + /* Clear cause register bits */ + GT_WRITE(GT_INTRCAUSE_OFS, ~(GT_INTRCAUSE_MASABORT0_BIT | + GT_INTRCAUSE_TARABORT0_BIT)); + + /* Setup address */ + GT_WRITE(GT_PCI0_CFGADDR_OFS, + (busnum << GT_PCI0_CFGADDR_BUSNUM_SHF) | + (devfn << GT_PCI0_CFGADDR_FUNCTNUM_SHF) | + ((where / 4) << GT_PCI0_CFGADDR_REGNUM_SHF) | + GT_PCI0_CFGADDR_CONFIGEN_BIT); + + if (access_type == PCI_ACCESS_WRITE) { + if (busnum == 0 && PCI_SLOT(devfn) == 0) { + /* + * The Galileo system controller is acting + * differently than other devices. + */ + GT_WRITE(GT_PCI0_CFGDATA_OFS, *data); + } else + __GT_WRITE(GT_PCI0_CFGDATA_OFS, *data); + } else { + if (busnum == 0 && PCI_SLOT(devfn) == 0) { + /* + * The Galileo system controller is acting + * differently than other devices. + */ + *data = GT_READ(GT_PCI0_CFGDATA_OFS); + } else + *data = __GT_READ(GT_PCI0_CFGDATA_OFS); + } + + /* Check for master or target abort */ + intr = GT_READ(GT_INTRCAUSE_OFS); + + if (intr & (GT_INTRCAUSE_MASABORT0_BIT | GT_INTRCAUSE_TARABORT0_BIT)) { + /* Error occurred */ + + /* Clear bits */ + GT_WRITE(GT_INTRCAUSE_OFS, ~(GT_INTRCAUSE_MASABORT0_BIT | + GT_INTRCAUSE_TARABORT0_BIT)); + + return -1; + } + + return 0; +} + + +/* + * We can't address 8 and 16 bit words directly. Instead we have to + * read/write a 32bit word and mask/modify the data we actually want. + */ +static int gt64xxx_pci0_pcibios_read(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 * val) +{ + u32 data = 0; + + if (gt64xxx_pci0_pcibios_config_access(PCI_ACCESS_READ, bus, devfn, + where, &data)) + return PCIBIOS_DEVICE_NOT_FOUND; + + if (size == 1) + *val = (data >> ((where & 3) << 3)) & 0xff; + else if (size == 2) + *val = (data >> ((where & 3) << 3)) & 0xffff; + else + *val = data; + + return PCIBIOS_SUCCESSFUL; +} + +static int gt64xxx_pci0_pcibios_write(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 val) +{ + u32 data = 0; + + if (size == 4) + data = val; + else { + if (gt64xxx_pci0_pcibios_config_access(PCI_ACCESS_READ, bus, + devfn, where, &data)) + return PCIBIOS_DEVICE_NOT_FOUND; + + if (size == 1) + data = (data & ~(0xff << ((where & 3) << 3))) | + (val << ((where & 3) << 3)); + else if (size == 2) + data = (data & ~(0xffff << ((where & 3) << 3))) | + (val << ((where & 3) << 3)); + } + + if (gt64xxx_pci0_pcibios_config_access(PCI_ACCESS_WRITE, bus, devfn, + where, &data)) + return PCIBIOS_DEVICE_NOT_FOUND; + + return PCIBIOS_SUCCESSFUL; +} + +struct pci_ops gt64xxx_pci0_ops = { + .read = gt64xxx_pci0_pcibios_read, + .write = gt64xxx_pci0_pcibios_write +}; diff --git a/arch/mips/pci/pci-lasat.c b/arch/mips/pci/pci-lasat.c index 88fb191ad2e..985784a3e6f 100644 --- a/arch/mips/pci/pci-lasat.c +++ b/arch/mips/pci/pci-lasat.c @@ -12,7 +12,7 @@ #include extern struct pci_ops nile4_pci_ops; -extern struct pci_ops gt64120_pci_ops; +extern struct pci_ops gt64xxx_pci0_ops; static struct resource lasat_pci_mem_resource = { .name = "LASAT PCI MEM", .start = 0x18000000, @@ -38,7 +38,7 @@ static int __init lasat_pci_setup(void) switch (mips_machtype) { case MACH_LASAT_100: - lasat_pci_controller.pci_ops = >64120_pci_ops; + lasat_pci_controller.pci_ops = >64xxx_pci0_ops; break; case MACH_LASAT_200: lasat_pci_controller.pci_ops = &nile4_pci_ops; diff --git a/arch/mips/pci/pci-ocelot.c b/arch/mips/pci/pci-ocelot.c index 2b9495dce6b..7f94f26d35a 100644 --- a/arch/mips/pci/pci-ocelot.c +++ b/arch/mips/pci/pci-ocelot.c @@ -81,7 +81,7 @@ static struct resource ocelot_io_resource = { }; static struct pci_controller ocelot_pci_controller = { - .pci_ops = gt64120_pci_ops; + .pci_ops = gt64xxx_pci0_ops; .mem_resource = &ocelot_mem_resource; .io_resource = &ocelot_io_resource; }; -- cgit v1.2.3-70-g09d2