diff options
Diffstat (limited to 'arch/arm')
54 files changed, 350 insertions, 850 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index e91c7cd..e246e8d 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -285,7 +285,6 @@ config ARCH_INTEGRATOR select GENERIC_CLOCKEVENTS select PLAT_VERSATILE select PLAT_VERSATILE_FPGA_IRQ - select NEED_MACH_IO_H select NEED_MACH_MEMORY_H select SPARSE_IRQ select MULTI_IRQ_HANDLER @@ -318,7 +317,6 @@ config ARCH_VERSATILE select ICST select GENERIC_CLOCKEVENTS select ARCH_WANT_OPTIONAL_GPIOLIB - select NEED_MACH_IO_H if PCI select PLAT_VERSATILE select PLAT_VERSATILE_CLOCK select PLAT_VERSATILE_CLCD @@ -462,7 +460,7 @@ config ARCH_FOOTBRIDGE select FOOTBRIDGE select GENERIC_CLOCKEVENTS select HAVE_IDE - select NEED_MACH_IO_H + select NEED_MACH_IO_H if !MMU select NEED_MACH_MEMORY_H help Support for systems based on the DC21285 companion chip @@ -519,7 +517,6 @@ config ARCH_IOP13XX select PCI select ARCH_SUPPORTS_MSI select VMSPLIT_1G - select NEED_MACH_IO_H select NEED_MACH_MEMORY_H select NEED_RET_TO_USER help @@ -529,7 +526,6 @@ config ARCH_IOP32X bool "IOP32x-based" depends on MMU select CPU_XSCALE - select NEED_MACH_IO_H select NEED_RET_TO_USER select PLAT_IOP select PCI @@ -542,7 +538,6 @@ config ARCH_IOP33X bool "IOP33x-based" depends on MMU select CPU_XSCALE - select NEED_MACH_IO_H select NEED_RET_TO_USER select PLAT_IOP select PCI @@ -582,7 +577,6 @@ config ARCH_DOVE select PCI select ARCH_REQUIRE_GPIOLIB select GENERIC_CLOCKEVENTS - select NEED_MACH_IO_H select PLAT_ORION help Support for the Marvell Dove SoC 88AP510 @@ -593,7 +587,6 @@ config ARCH_KIRKWOOD select PCI select ARCH_REQUIRE_GPIOLIB select GENERIC_CLOCKEVENTS - select NEED_MACH_IO_H select PLAT_ORION help Support for the following Marvell Kirkwood series SoCs: @@ -620,7 +613,6 @@ config ARCH_MV78XX0 select PCI select ARCH_REQUIRE_GPIOLIB select GENERIC_CLOCKEVENTS - select NEED_MACH_IO_H select PLAT_ORION help Support for the following Marvell MV78xx0 series SoCs: @@ -633,7 +625,6 @@ config ARCH_ORION5X select PCI select ARCH_REQUIRE_GPIOLIB select GENERIC_CLOCKEVENTS - select NEED_MACH_IO_H select PLAT_ORION help Support for the following Marvell Orion 5x series SoCs: @@ -689,7 +680,6 @@ config ARCH_TEGRA select HAVE_CLK select HAVE_SMP select MIGHT_HAVE_CACHE_L2X0 - select NEED_MACH_IO_H if PCI select ARCH_HAS_CPUFREQ select USE_OF help @@ -918,7 +908,6 @@ config ARCH_SHARK select PCI select ARCH_USES_GETTIMEOFFSET select NEED_MACH_MEMORY_H - select NEED_MACH_IO_H help Support for the StrongARM based Digital DNARD machine, also known as "Shark" (<http://www.shark-linux.de/shark.html>). diff --git a/arch/arm/include/asm/hardware/iop3xx.h b/arch/arm/include/asm/hardware/iop3xx.h index 2ff2c75..02fe2fb 100644 --- a/arch/arm/include/asm/hardware/iop3xx.h +++ b/arch/arm/include/asm/hardware/iop3xx.h @@ -217,18 +217,8 @@ extern int iop3xx_get_init_atu(void); #define IOP3XX_PCI_LOWER_MEM_PA 0x80000000 #define IOP3XX_PCI_MEM_WINDOW_SIZE 0x08000000 -#define IOP3XX_PCI_IO_WINDOW_SIZE 0x00010000 #define IOP3XX_PCI_LOWER_IO_PA 0x90000000 -#define IOP3XX_PCI_LOWER_IO_VA 0xfe000000 -#define IOP3XX_PCI_LOWER_IO_BA 0x90000000 -#define IOP3XX_PCI_UPPER_IO_PA (IOP3XX_PCI_LOWER_IO_PA +\ - IOP3XX_PCI_IO_WINDOW_SIZE - 1) -#define IOP3XX_PCI_UPPER_IO_VA (IOP3XX_PCI_LOWER_IO_VA +\ - IOP3XX_PCI_IO_WINDOW_SIZE - 1) -#define IOP3XX_PCI_IO_PHYS_TO_VIRT(addr) (((u32) (addr) -\ - IOP3XX_PCI_LOWER_IO_PA) +\ - IOP3XX_PCI_LOWER_IO_VA) - +#define IOP3XX_PCI_LOWER_IO_BA 0x00000000 #ifndef __ASSEMBLY__ diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h index 815c669..8f4db67 100644 --- a/arch/arm/include/asm/io.h +++ b/arch/arm/include/asm/io.h @@ -113,11 +113,19 @@ static inline void __iomem *__typesafe_io(unsigned long addr) #define __iowmb() do { } while (0) #endif +/* PCI fixed i/o mapping */ +#define PCI_IO_VIRT_BASE 0xfee00000 + +extern int pci_ioremap_io(unsigned int offset, phys_addr_t phys_addr); + /* * Now, pick up the machine-defined IO definitions */ #ifdef CONFIG_NEED_MACH_IO_H #include <mach/io.h> +#elif defined(CONFIG_PCI) +#define IO_SPACE_LIMIT ((resource_size_t)0xfffff) +#define __io(a) __typesafe_io(PCI_IO_VIRT_BASE + ((a) & IO_SPACE_LIMIT)) #else #define __io(a) __typesafe_io((a) & IO_SPACE_LIMIT) #endif diff --git a/arch/arm/include/asm/mach/map.h b/arch/arm/include/asm/mach/map.h index a6efcdd..195ac2f 100644 --- a/arch/arm/include/asm/mach/map.h +++ b/arch/arm/include/asm/mach/map.h @@ -9,6 +9,9 @@ * * Page table mapping constructs and function prototypes */ +#ifndef __ASM_MACH_MAP_H +#define __ASM_MACH_MAP_H + #include <asm/io.h> struct map_desc { @@ -34,6 +37,8 @@ struct map_desc { #ifdef CONFIG_MMU extern void iotable_init(struct map_desc *, int); +extern void vm_reserve_area_early(unsigned long addr, unsigned long size, + void *caller); struct mem_type; extern const struct mem_type *get_mem_type(unsigned int type); @@ -44,4 +49,7 @@ extern int ioremap_page(unsigned long virt, unsigned long phys, const struct mem_type *mtype); #else #define iotable_init(map,num) do { } while (0) +#define vm_reserve_area_early(a,s,c) do { } while (0) +#endif + #endif diff --git a/arch/arm/include/asm/mach/pci.h b/arch/arm/include/asm/mach/pci.h index 26c511f..db9fedb 100644 --- a/arch/arm/include/asm/mach/pci.h +++ b/arch/arm/include/asm/mach/pci.h @@ -11,6 +11,8 @@ #ifndef __ASM_MACH_PCI_H #define __ASM_MACH_PCI_H +#include <linux/ioport.h> + struct pci_sys_data; struct pci_ops; struct pci_bus; @@ -42,6 +44,8 @@ struct pci_sys_data { unsigned long io_offset; /* bus->cpu IO mapping offset */ struct pci_bus *bus; /* PCI bus */ struct list_head resources; /* root bus resources (apertures) */ + struct resource io_res; + char io_res_name[12]; /* Bridge swizzling */ u8 (*swizzle)(struct pci_dev *, u8 *); /* IRQ mapping */ @@ -55,6 +59,15 @@ struct pci_sys_data { void pci_common_init(struct hw_pci *); /* + * Setup early fixed I/O mapping. + */ +#if defined(CONFIG_PCI) +extern void pci_map_io_early(unsigned long pfn); +#else +static inline void pci_map_io_early(unsigned long pfn) {} +#endif + +/* * PCI controllers */ extern struct pci_ops iop3xx_ops; diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c index 2b2f25e..b244696 100644 --- a/arch/arm/kernel/bios32.c +++ b/arch/arm/kernel/bios32.c @@ -13,6 +13,7 @@ #include <linux/io.h> #include <asm/mach-types.h> +#include <asm/mach/map.h> #include <asm/mach/pci.h> static int debug_pci; @@ -423,6 +424,38 @@ static int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) return irq; } +static int __init pcibios_init_resources(int busnr, struct pci_sys_data *sys) +{ + int ret; + struct pci_host_bridge_window *window; + + if (list_empty(&sys->resources)) { + pci_add_resource_offset(&sys->resources, + &iomem_resource, sys->mem_offset); + } + + list_for_each_entry(window, &sys->resources, list) { + if (resource_type(window->res) == IORESOURCE_IO) + return 0; + } + + sys->io_res.start = (busnr * SZ_64K) ? : pcibios_min_io; + sys->io_res.end = (busnr + 1) * SZ_64K - 1; + sys->io_res.flags = IORESOURCE_IO; + sys->io_res.name = sys->io_res_name; + sprintf(sys->io_res_name, "PCI%d I/O", busnr); + + ret = request_resource(&ioport_resource, &sys->io_res); + if (ret) { + pr_err("PCI: unable to allocate I/O port region (%d)\n", ret); + return ret; + } + pci_add_resource_offset(&sys->resources, &sys->io_res, + sys->io_offset); + + return 0; +} + static void __init pcibios_init_hw(struct hw_pci *hw, struct list_head *head) { struct pci_sys_data *sys = NULL; @@ -445,11 +478,10 @@ static void __init pcibios_init_hw(struct hw_pci *hw, struct list_head *head) ret = hw->setup(nr, sys); if (ret > 0) { - if (list_empty(&sys->resources)) { - pci_add_resource_offset(&sys->resources, - &ioport_resource, sys->io_offset); - pci_add_resource_offset(&sys->resources, - &iomem_resource, sys->mem_offset); + ret = pcibios_init_resources(nr, sys); + if (ret) { + kfree(sys); + break; } if (hw->scan) @@ -627,3 +659,15 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, return 0; } + +void __init pci_map_io_early(unsigned long pfn) +{ + struct map_desc pci_io_desc = { + .virtual = PCI_IO_VIRT_BASE, + .type = MT_DEVICE, + .length = SZ_64K, + }; + + pci_io_desc.pfn = pfn; + iotable_init(&pci_io_desc, 1); +} diff --git a/arch/arm/mach-dove/common.c b/arch/arm/mach-dove/common.c index 4db5de5..ed4fa5f 100644 --- a/arch/arm/mach-dove/common.c +++ b/arch/arm/mach-dove/common.c @@ -49,16 +49,6 @@ static struct map_desc dove_io_desc[] __initdata = { .pfn = __phys_to_pfn(DOVE_NB_REGS_PHYS_BASE), .length = DOVE_NB_REGS_SIZE, .type = MT_DEVICE, - }, { - .virtual = DOVE_PCIE0_IO_VIRT_BASE, - .pfn = __phys_to_pfn(DOVE_PCIE0_IO_PHYS_BASE), - .length = DOVE_PCIE0_IO_SIZE, - .type = MT_DEVICE, - }, { - .virtual = DOVE_PCIE1_IO_VIRT_BASE, - .pfn = __phys_to_pfn(DOVE_PCIE1_IO_PHYS_BASE), - .length = DOVE_PCIE1_IO_SIZE, - .type = MT_DEVICE, }, }; diff --git a/arch/arm/mach-dove/include/mach/dove.h b/arch/arm/mach-dove/include/mach/dove.h index d52b0ef..c91e300 100644 --- a/arch/arm/mach-dove/include/mach/dove.h +++ b/arch/arm/mach-dove/include/mach/dove.h @@ -50,14 +50,12 @@ #define DOVE_NB_REGS_SIZE SZ_8M #define DOVE_PCIE0_IO_PHYS_BASE 0xf2000000 -#define DOVE_PCIE0_IO_VIRT_BASE 0xfee00000 #define DOVE_PCIE0_IO_BUS_BASE 0x00000000 -#define DOVE_PCIE0_IO_SIZE SZ_1M +#define DOVE_PCIE0_IO_SIZE SZ_64K #define DOVE_PCIE1_IO_PHYS_BASE 0xf2100000 -#define DOVE_PCIE1_IO_VIRT_BASE 0xfef00000 -#define DOVE_PCIE1_IO_BUS_BASE 0x00100000 -#define DOVE_PCIE1_IO_SIZE SZ_1M +#define DOVE_PCIE1_IO_BUS_BASE 0x00010000 +#define DOVE_PCIE1_IO_SIZE SZ_64K /* * Dove Core Registers Map diff --git a/arch/arm/mach-dove/include/mach/io.h b/arch/arm/mach-dove/include/mach/io.h deleted file mode 100644 index 29c8b85..0000000 --- a/arch/arm/mach-dove/include/mach/io.h +++ /dev/null @@ -1,19 +0,0 @@ -/* - * arch/arm/mach-dove/include/mach/io.h - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#ifndef __ASM_ARCH_IO_H -#define __ASM_ARCH_IO_H - -#include "dove.h" - -#define IO_SPACE_LIMIT 0xffffffff - -#define __io(a) ((void __iomem *)(((a) - DOVE_PCIE0_IO_BUS_BASE) + \ - DOVE_PCIE0_IO_VIRT_BASE)) - -#endif diff --git a/arch/arm/mach-dove/pcie.c b/arch/arm/mach-dove/pcie.c index 47921b0..355332d 100644 --- a/arch/arm/mach-dove/pcie.c +++ b/arch/arm/mach-dove/pcie.c @@ -26,9 +26,8 @@ struct pcie_port { u8 root_bus_nr; void __iomem *base; spinlock_t conf_lock; - char io_space_name[16]; char mem_space_name[16]; - struct resource res[2]; + struct resource res; }; static struct pcie_port pcie_port[2]; @@ -53,24 +52,10 @@ static int __init dove_pcie_setup(int nr, struct pci_sys_data *sys) orion_pcie_setup(pp->base); - /* - * IORESOURCE_IO - */ - snprintf(pp->io_space_name, sizeof(pp->io_space_name), - "PCIe %d I/O", pp->index); - pp->io_space_name[sizeof(pp->io_space_name) - 1] = 0; - pp->res[0].name = pp->io_space_name; - if (pp->index == 0) { - pp->res[0].start = DOVE_PCIE0_IO_PHYS_BASE; - pp->res[0].end = pp->res[0].start + DOVE_PCIE0_IO_SIZE - 1; - } else { - pp->res[0].start = DOVE_PCIE1_IO_PHYS_BASE; - pp->res[0].end = pp->res[0].start + DOVE_PCIE1_IO_SIZE - 1; - } - pp->res[0].flags = IORESOURCE_IO; - if (request_resource(&ioport_resource, &pp->res[0])) - panic("Request PCIe IO resource failed\n"); - pci_add_resource_offset(&sys->resources, &pp->res[0], sys->io_offset); + if (pp->index == 0) + pci_ioremap_io(sys->busnr * SZ_64K, DOVE_PCIE0_IO_PHYS_BASE); + else + pci_ioremap_io(sys->busnr * SZ_64K, DOVE_PCIE1_IO_PHYS_BASE); /* * IORESOURCE_MEM @@ -78,18 +63,18 @@ static int __init dove_pcie_setup(int nr, struct pci_sys_data *sys) snprintf(pp->mem_space_name, sizeof(pp->mem_space_name), "PCIe %d MEM", pp->index); pp->mem_space_name[sizeof(pp->mem_space_name) - 1] = 0; - pp->res[1].name = pp->mem_space_name; + pp->res.name = pp->mem_space_name; if (pp->index == 0) { - pp->res[1].start = DOVE_PCIE0_MEM_PHYS_BASE; - pp->res[1].end = pp->res[1].start + DOVE_PCIE0_MEM_SIZE - 1; + pp->res.start = DOVE_PCIE0_MEM_PHYS_BASE; + pp->res.end = pp->res.start + DOVE_PCIE0_MEM_SIZE - 1; } else { - pp->res[1].start = DOVE_PCIE1_MEM_PHYS_BASE; - pp->res[1].end = pp->res[1].start + DOVE_PCIE1_MEM_SIZE - 1; + pp->res.start = DOVE_PCIE1_MEM_PHYS_BASE; + pp->res.end = pp->res.start + DOVE_PCIE1_MEM_SIZE - 1; } - pp->res[1].flags = IORESOURCE_MEM; - if (request_resource(&iomem_resource, &pp->res[1])) + pp->res.flags = IORESOURCE_MEM; + if (request_resource(&iomem_resource, &pp->res)) panic("Request PCIe Memory resource failed\n"); - pci_add_resource_offset(&sys->resources, &pp->res[1], sys->mem_offset); + pci_add_resource_offset(&sys->resources, &pp->res, sys->mem_offset); return 1; } @@ -210,7 +195,7 @@ static void __init add_pcie_port(int index, unsigned long base) pp->root_bus_nr = -1; pp->base = (void __iomem *)base; spin_lock_init(&pp->conf_lock); - memset(pp->res, 0, sizeof(pp->res)); + memset(&pp->res, 0, sizeof(pp->res)); } else { printk(KERN_INFO "link down, ignoring\n"); } diff --git a/arch/arm/mach-footbridge/common.c b/arch/arm/mach-footbridge/common.c index 3e6aaa6..a42b369 100644 --- a/arch/arm/mach-footbridge/common.c +++ b/arch/arm/mach-footbridge/common.c @@ -15,7 +15,7 @@ #include <linux/init.h> #include <linux/io.h> #include <linux/spinlock.h> - + #include <asm/pgtable.h> #include <asm/page.h> #include <asm/irq.h> @@ -26,6 +26,7 @@ #include <asm/mach/irq.h> #include <asm/mach/map.h> +#include <asm/mach/pci.h> #include "common.h" @@ -175,11 +176,6 @@ static struct map_desc ebsa285_host_io_desc[] __initdata = { .pfn = __phys_to_pfn(DC21285_PCI_IACK), .length = PCIIACK_SIZE, .type = MT_DEVICE, - }, { - .virtual = PCIO_BASE, - .pfn = __phys_to_pfn(DC21285_PCI_IO), - .length = PCIO_SIZE, - .type = MT_DEVICE, }, #endif }; @@ -196,8 +192,10 @@ void __init footbridge_map_io(void) * Now, work out what we've got to map in addition on this * platform. */ - if (footbridge_cfn_mode()) + if (footbridge_cfn_mode()) { iotable_init(ebsa285_host_io_desc, ARRAY_SIZE(ebsa285_host_io_desc)); + pci_map_io_early(__phys_to_pfn(DC21285_PCI_IO)); + } } void footbridge_restart(char mode, const char *cmd) diff --git a/arch/arm/mach-footbridge/dc21285.c b/arch/arm/mach-footbridge/dc21285.c index 9d62e33..a7cd2cf 100644 --- a/arch/arm/mach-footbridge/dc21285.c +++ b/arch/arm/mach-footbridge/dc21285.c @@ -276,8 +276,8 @@ int __init dc21285_setup(int nr, struct pci_sys_data *sys) sys->mem_offset = DC21285_PCI_MEM; - pci_add_resource_offset(&sys->resources, - &ioport_resource, sys->io_offset); + pci_ioremap_io(0, DC21285_PCI_IO); + pci_add_resource_offset(&sys->resources, &res[0], sys->mem_offset); pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset); @@ -298,7 +298,7 @@ void __init dc21285_preinit(void) mem_size = (unsigned int)high_memory - PAGE_OFFSET; for (mem_mask = 0x00100000; mem_mask < 0x10000000; mem_mask <<= 1) if (mem_mask >= mem_size) - break; + break; /* * These registers need to be set up whether we're the @@ -350,14 +350,6 @@ void __init dc21285_preinit(void) "PCI data parity", NULL); if (cfn_mode) { - static struct resource csrio; - - csrio.flags = IORESOURCE_IO; - csrio.name = "Footbridge"; - - allocate_resource(&ioport_resource, &csrio, 128, - 0xff00, 0xffff, 128, NULL, NULL); - /* * Map our SDRAM at a known address in PCI space, just in case * the firmware had other ideas. Using a nonzero base is @@ -365,7 +357,7 @@ void __init dc21285_preinit(void) * in the range 0x000a0000 to 0x000c0000. (eg, S3 cards). */ *CSR_PCICSRBASE = 0xf4000000; - *CSR_PCICSRIOBASE = csrio.start; + *CSR_PCICSRIOBASE = 0; *CSR_PCISDRAMBASE = __virt_to_bus(PAGE_OFFSET); *CSR_PCIROMBASE = 0; *CSR_PCICMD = PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | diff --git a/arch/arm/mach-footbridge/include/mach/debug-macro.S b/arch/arm/mach-footbridge/include/mach/debug-macro.S index e5acde2..c169f0c 100644 --- a/arch/arm/mach-footbridge/include/mach/debug-macro.S +++ b/arch/arm/mach-footbridge/include/mach/debug-macro.S @@ -17,7 +17,8 @@ /* For NetWinder debugging */ .macro addruart, rp, rv, tmp mov \rp, #0x000003f8 - orr \rv, \rp, #0xff000000 @ virtual + orr \rv, \rp, #0xfe000000 @ virtual + orr \rv, \rv, #0x00e00000 @ virtual orr \rp, \rp, #0x7c000000 @ physical .endm diff --git a/arch/arm/mach-footbridge/include/mach/io.h b/arch/arm/mach-footbridge/include/mach/io.h index aba531ee..aba4638 100644 --- a/arch/arm/mach-footbridge/include/mach/io.h +++ b/arch/arm/mach-footbridge/include/mach/io.h @@ -14,18 +14,10 @@ #ifndef __ASM_ARM_ARCH_IO_H #define __ASM_ARM_ARCH_IO_H -#ifdef CONFIG_MMU -#define MMU_IO(a, b) (a) -#else -#define MMU_IO(a, b) (b) -#endif - -#define PCIO_SIZE 0x00100000 -#define PCIO_BASE MMU_IO(0xff000000, 0x7c000000) - /* - * Translation of various region addresses to virtual addresses + * Translation of various i/o addresses to host addresses for !CONFIG_MMU */ +#define PCIO_BASE 0x7c000000 #define __io(a) ((void __iomem *)(PCIO_BASE + (a))) #endif diff --git a/arch/arm/mach-integrator/include/mach/io.h b/arch/arm/mach-integrator/include/mach/io.h deleted file mode 100644 index 8de70de..0000000 --- a/arch/arm/mach-integrator/include/mach/io.h +++ /dev/null @@ -1,33 +0,0 @@ -/* - * arch/arm/mach-integrator/include/mach/io.h - * - * Copyright (C) 1999 ARM Limited - * - * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#ifndef __ASM_ARM_ARCH_IO_H -#define __ASM_ARM_ARCH_IO_H - -/* - * WARNING: this has to mirror definitions in platform.h - */ -#define PCI_MEMORY_VADDR 0xe8000000 -#define PCI_CONFIG_VADDR 0xec000000 -#define PCI_V3_VADDR 0xed000000 -#define PCI_IO_VADDR 0xee000000 - -#define __io(a) ((void __iomem *)(PCI_IO_VADDR + (a))) - -#endif diff --git a/arch/arm/mach-integrator/include/mach/platform.h b/arch/arm/mach-integrator/include/mach/platform.h index ec467ba..4c03475 100644 --- a/arch/arm/mach-integrator/include/mach/platform.h +++ b/arch/arm/mach-integrator/include/mach/platform.h @@ -324,6 +324,10 @@ */ #define PHYS_PCI_V3_BASE 0x62000000 +#define PCI_MEMORY_VADDR 0xe8000000 +#define PCI_CONFIG_VADDR 0xec000000 +#define PCI_V3_VADDR 0xed000000 + /* ------------------------------------------------------------------------ * Integrator Interrupt Controllers * ------------------------------------------------------------------------ diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c index 7b1055c..3c1dc43 100644 --- a/arch/arm/mach-integrator/integrator_ap.c +++ b/arch/arm/mach-integrator/integrator_ap.c @@ -50,6 +50,7 @@ #include <asm/mach/arch.h> #include <asm/mach/irq.h> #include <asm/mach/map.h> +#include <asm/mach/pci.h> #include <asm/mach/time.h> #include <plat/fpga-irq.h> @@ -73,7 +74,7 @@ * e8000000 40000000 PCI memory PHYS_PCI_MEM_BASE (max 512M) * ec000000 61000000 PCI config space PHYS_PCI_CONFIG_BASE (max 16M) * ed000000 62000000 PCI V3 regs PHYS_PCI_V3_BASE (max 64k) - * ee000000 60000000 PCI IO PHYS_PCI_IO_BASE (max 16M) + * fee00000 60000000 PCI IO PHYS_PCI_IO_BASE (max 16M) * ef000000 Cache flush * f1000000 10000000 Core module registers * f1100000 11000000 System controller registers @@ -147,11 +148,6 @@ static struct map_desc ap_io_desc[] __initdata = { .pfn = __phys_to_pfn(PHYS_PCI_V3_BASE), .length = SZ_64K, .type = MT_DEVICE - }, { - .virtual = PCI_IO_VADDR, - .pfn = __phys_to_pfn(PHYS_PCI_IO_BASE), - .length = SZ_64K, - .type = MT_DEVICE } }; @@ -159,6 +155,7 @@ static void __init ap_map_io(void) { iotable_init(ap_io_desc, ARRAY_SIZE(ap_io_desc)); vga_base = PCI_MEMORY_VADDR; + pci_map_io_early(__phys_to_pfn(PHYS_PCI_IO_BASE)); } #define INTEGRATOR_SC_VALID_INT 0x003fffff diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c index b866880..495f181 100644 --- a/arch/arm/mach-integrator/pci_v3.c +++ b/arch/arm/mach-integrator/pci_v3.c @@ -41,61 +41,61 @@ /* * The V3 PCI interface chip in Integrator provides several windows from * local bus memory into the PCI memory areas. Unfortunately, there - * are not really enough windows for our usage, therefore we reuse + * are not really enough windows for our usage, therefore we reuse * one of the windows for access to PCI configuration space. The * memory map is as follows: - * + * * Local Bus Memory Usage - * + * * 40000000 - 4FFFFFFF PCI memory. 256M non-prefetchable * 50000000 - 5FFFFFFF PCI memory. 256M prefetchable * 60000000 - 60FFFFFF PCI IO. 16M * 61000000 - 61FFFFFF PCI Configuration. 16M - * + * * There are three V3 windows, each described by a pair of V3 registers. * These are LB_BASE0/LB_MAP0, LB_BASE1/LB_MAP1 and LB_BASE2/LB_MAP2. * Base0 and Base1 can be used for any type of PCI memory access. Base2 * can be used either for PCI I/O or for I20 accesses. By default, uHAL * uses this only for PCI IO space. - * + * * Normally these spaces are mapped using the following base registers: - * + * * Usage Local Bus Memory Base/Map registers used - * + * * Mem 40000000 - 4FFFFFFF LB_BASE0/LB_MAP0 * Mem 50000000 - 5FFFFFFF LB_BASE1/LB_MAP1 * IO 60000000 - 60FFFFFF LB_BASE2/LB_MAP2 * Cfg 61000000 - 61FFFFFF - * + * * This means that I20 and PCI configuration space accesses will fail. - * When PCI configuration accesses are needed (via the uHAL PCI + * When PCI configuration accesses are needed (via the uHAL PCI * configuration space primitives) we must remap the spaces as follows: - * + * * Usage Local Bus Memory Base/Map registers used - * + * * Mem 40000000 - 4FFFFFFF LB_BASE0/LB_MAP0 * Mem 50000000 - 5FFFFFFF LB_BASE0/LB_MAP0 * IO 60000000 - 60FFFFFF LB_BASE2/LB_MAP2 * Cfg 61000000 - 61FFFFFF LB_BASE1/LB_MAP1 - * + * * To make this work, the code depends on overlapping windows working. - * The V3 chip translates an address by checking its range within + * The V3 chip translates an address by checking its range within * each of the BASE/MAP pairs in turn (in ascending register number * order). It will use the first matching pair. So, for example, * if the same address is mapped by both LB_BASE0/LB_MAP0 and - * LB_BASE1/LB_MAP1, the V3 will use the translation from + * LB_BASE1/LB_MAP1, the V3 will use the translation from * LB_BASE0/LB_MAP0. - * + * * To allow PCI Configuration space access, the code enlarges the * window mapped by LB_BASE0/LB_MAP0 from 256M to 512M. This occludes * the windows currently mapped by LB_BASE1/LB_MAP1 so that it can * be remapped for use by configuration cycles. - * - * At the end of the PCI Configuration space accesses, + * + * At the end of the PCI Configuration space accesses, * LB_BASE1/LB_MAP1 is reset to map PCI Memory. Finally the window * mapped by LB_BASE0/LB_MAP0 is reduced in size from 512M to 256M to * reveal the now restored LB_BASE1/LB_MAP1 window. - * + * * NOTE: We do not set up I2O mapping. I suspect that this is only * for an intelligent (target) device. Using I2O disables most of * the mappings into PCI memory. @@ -127,8 +127,8 @@ * * returns: configuration address to play on the PCI bus * - * To generate the appropriate PCI configuration cycles in the PCI - * configuration address space, you present the V3 with the following pattern + * To generate the appropriate PCI configuration cycles in the PCI + * configuration address space, you present the V3 with the following pattern * (which is very nearly a type 1 (except that the lower two bits are 00 and * not 01). In order for this mapping to work you need to set up one of * the local to PCI aperatures to 16Mbytes in length translating to @@ -138,7 +138,7 @@ * * Type 0: * - * 3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 + * 3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 * 3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | | |D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|F|F|F|R|R|R|R|R|R|0|0| @@ -150,7 +150,7 @@ * * Type 1: * - * 3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 + * 3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 * 3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | | | | | | | | | | |B|B|B|B|B|B|B|B|D|D|D|D|D|F|F|F|R|R|R|R|R|R|0|1| @@ -161,7 +161,7 @@ * 15:11 Device number (5 bits) * 10:8 function number * 7:2 register number - * + * */ static DEFINE_RAW_SPINLOCK(v3_lock); @@ -374,12 +374,9 @@ static int __init pci_v3_setup_resources(struct pci_sys_data *sys) } /* - * the IO resource for this bus * the mem resource for this bus * the prefetch mem resource for this bus */ - pci_add_resource_offset(&sys->resources, - &ioport_resource, sys->io_offset); pci_add_resource_offset(&sys->resources, &non_mem, sys->mem_offset); pci_add_resource_offset(&sys->resources, &pre_mem, sys->mem_offset); @@ -498,7 +495,6 @@ void __init pci_v3_preinit(void) unsigned int temp; int ret; - pcibios_min_io = 0x6000; pcibios_min_mem = 0x00100000; /* diff --git a/arch/arm/mach-iop13xx/include/mach/io.h b/arch/arm/mach-iop13xx/include/mach/io.h deleted file mode 100644 index f131885..0000000 --- a/arch/arm/mach-iop13xx/include/mach/io.h +++ /dev/null @@ -1,28 +0,0 @@ -/* - * iop13xx custom ioremap implementation - * Copyright (c) 2005-2006, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions 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. - * - */ -#ifndef __ASM_ARM_ARCH_IO_H -#define __ASM_ARM_ARCH_IO_H - -#define IO_SPACE_LIMIT 0xffffffff - -#define __io(a) __iop13xx_io(a) - -extern void __iomem * __iop13xx_io(unsigned long io_addr); - -#endif diff --git a/arch/arm/mach-iop13xx/include/mach/iop13xx.h b/arch/arm/mach-iop13xx/include/mach/iop13xx.h index e190dcd..e10e101 100644 --- a/arch/arm/mach-iop13xx/include/mach/iop13xx.h +++ b/arch/arm/mach-iop13xx/include/mach/iop13xx.h @@ -69,21 +69,11 @@ extern unsigned long get_iop_tick_rate(void); * 0x8000.0000 + 928M 0x2.8000.0000 (ioremap) PCIE outbound memory window * * IO MAP - * 0x1000 + 64K 0x0.fffb.1000 0xfec6.1000 PCIX outbound i/o window - * 0x1000 + 64K 0x0.fffd.1000 0xfed7.1000 PCIE outbound i/o window + * 0x00000 + 64K 0x0.fffb.0000 0xfee0.0000 PCIX outbound i/o window + * 0x10000 + 64K 0x0.fffd.0000 0xfee1.0000 PCIE outbound i/o window */ -#define IOP13XX_PCIX_IO_WINDOW_SIZE 0x10000UL #define IOP13XX_PCIX_LOWER_IO_PA 0xfffb0000UL -#define IOP13XX_PCIX_LOWER_IO_VA 0xfec60000UL #define IOP13XX_PCIX_LOWER_IO_BA 0x0UL /* OIOTVR */ -#define IOP13XX_PCIX_IO_BUS_OFFSET 0x1000UL -#define IOP13XX_PCIX_UPPER_IO_PA (IOP13XX_PCIX_LOWER_IO_PA +\ - IOP13XX_PCIX_IO_WINDOW_SIZE - 1) -#define IOP13XX_PCIX_UPPER_IO_VA (IOP13XX_PCIX_LOWER_IO_VA +\ - IOP13XX_PCIX_IO_WINDOW_SIZE - 1) -#define IOP13XX_PCIX_IO_PHYS_TO_VIRT(addr) (u32) ((u32) addr -\ - (IOP13XX_PCIX_LOWER_IO_PA\ - - IOP13XX_PCIX_LOWER_IO_VA)) #define IOP13XX_PCIX_MEM_PHYS_OFFSET 0x100000000ULL #define IOP13XX_PCIX_MEM_WINDOW_SIZE 0x3a000000UL @@ -103,20 +93,8 @@ extern unsigned long get_iop_tick_rate(void); IOP13XX_PCIX_LOWER_MEM_BA) /* PCI-E ranges */ -#define IOP13XX_PCIE_IO_WINDOW_SIZE 0x10000UL #define IOP13XX_PCIE_LOWER_IO_PA 0xfffd0000UL -#define IOP13XX_PCIE_LOWER_IO_VA 0xfed70000UL -#define IOP13XX_PCIE_LOWER_IO_BA 0x0UL /* OIOTVR */ -#define IOP13XX_PCIE_IO_BUS_OFFSET 0x1000UL -#define IOP13XX_PCIE_UPPER_IO_PA (IOP13XX_PCIE_LOWER_IO_PA +\ - IOP13XX_PCIE_IO_WINDOW_SIZE - 1) -#define IOP13XX_PCIE_UPPER_IO_VA (IOP13XX_PCIE_LOWER_IO_VA +\ - IOP13XX_PCIE_IO_WINDOW_SIZE - 1) -#define IOP13XX_PCIE_UPPER_IO_BA (IOP13XX_PCIE_LOWER_IO_BA +\ - IOP13XX_PCIE_IO_WINDOW_SIZE - 1) -#define IOP13XX_PCIE_IO_PHYS_TO_VIRT(addr) (u32) ((u32) addr -\ - (IOP13XX_PCIE_LOWER_IO_PA\ - - IOP13XX_PCIE_LOWER_IO_VA)) +#define IOP13XX_PCIE_LOWER_IO_BA 0x10000UL /* OIOTVR */ #define IOP13XX_PCIE_MEM_PHYS_OFFSET 0x200000000ULL #define IOP13XX_PCIE_MEM_WINDOW_SIZE 0x3a000000UL diff --git a/arch/arm/mach-iop13xx/io.c b/arch/arm/mach-iop13xx/io.c index 3c36419..851dc8f 100644 --- a/arch/arm/mach-iop13xx/io.c +++ b/arch/arm/mach-iop13xx/io.c @@ -23,25 +23,6 @@ #include "pci.h" -void * __iomem __iop13xx_io(unsigned long io_addr) -{ - void __iomem * io_virt; - - switch (io_addr) { - case IOP13XX_PCIE_LOWER_IO_PA ... IOP13XX_PCIE_UPPER_IO_PA: - io_virt = (void *) IOP13XX_PCIE_IO_PHYS_TO_VIRT(io_addr); - break; - case IOP13XX_PCIX_LOWER_IO_PA ... IOP13XX_PCIX_UPPER_IO_PA: - io_virt = (void *) IOP13XX_PCIX_IO_PHYS_TO_VIRT(io_addr); - break; - default: - BUG(); - } - - return io_virt; -} -EXPORT_SYMBOL(__iop13xx_io); - static void __iomem *__iop13xx_ioremap_caller(unsigned long cookie, size_t size, unsigned int mtype, void *caller) { @@ -67,12 +48,6 @@ static void __iomem *__iop13xx_ioremap_caller(unsigned long cookie, (cookie - IOP13XX_PBI_LOWER_MEM_RA), size, mtype, __builtin_return_address(0)); break; - case IOP13XX_PCIE_LOWER_IO_PA ... IOP13XX_PCIE_UPPER_IO_PA: - retval = (void *) IOP13XX_PCIE_IO_PHYS_TO_VIRT(cookie); - break; - case IOP13XX_PCIX_LOWER_IO_PA ... IOP13XX_PCIX_UPPER_IO_PA: - retval = (void *) IOP13XX_PCIX_IO_PHYS_TO_VIRT(cookie); - break; case IOP13XX_PMMR_PHYS_MEM_BASE ... IOP13XX_PMMR_UPPER_MEM_PA: retval = (void *) IOP13XX_PMMR_PHYS_TO_VIRT(cookie); break; @@ -99,8 +74,6 @@ static void __iop13xx_iounmap(volatile void __iomem *addr) goto skip; switch ((u32) addr) { - case IOP13XX_PCIE_LOWER_IO_VA ... IOP13XX_PCIE_UPPER_IO_VA: - case IOP13XX_PCIX_LOWER_IO_VA ... IOP13XX_PCIX_UPPER_IO_VA: case IOP13XX_PMMR_VIRT_MEM_BASE ... IOP13XX_PMMR_UPPER_MEM_VA: goto skip; } diff --git a/arch/arm/mach-iop13xx/pci.c b/arch/arm/mach-iop13xx/pci.c index 861cb12..91f731a 100644 --- a/arch/arm/mach-iop13xx/pci.c +++ b/arch/arm/mach-iop13xx/pci.c @@ -970,7 +970,6 @@ void __init iop13xx_pci_init(void) __raw_writel(__raw_readl(IOP13XX_XBG_BECSR) & 3, IOP13XX_XBG_BECSR); /* Setup the Min Address for PCI memory... */ - pcibios_min_io = 0; pcibios_min_mem = IOP13XX_PCIX_LOWER_MEM_BA; /* if Linux is given control of an ATU @@ -1003,7 +1002,7 @@ int iop13xx_pci_setup(int nr, struct pci_sys_data *sys) if (nr > 1) return 0; - res = kcalloc(2, sizeof(struct resource), GFP_KERNEL); + res = kzalloc(sizeof(struct resource), GFP_KERNEL); if (!res) panic("PCI: unable to alloc resources"); @@ -1042,17 +1041,13 @@ int iop13xx_pci_setup(int nr, struct pci_sys_data *sys) << IOP13XX_ATUX_PCIXSR_FUNC_NUM; __raw_writel(pcixsr, IOP13XX_ATUX_PCIXSR); - res[0].start = IOP13XX_PCIX_LOWER_IO_PA + IOP13XX_PCIX_IO_BUS_OFFSET; - res[0].end = IOP13XX_PCIX_UPPER_IO_PA; - res[0].name = "IQ81340 ATUX PCI I/O Space"; - res[0].flags = IORESOURCE_IO; + pci_ioremap_io(0, IOP13XX_PCIX_LOWER_IO_PA); - res[1].start = IOP13XX_PCIX_LOWER_MEM_RA; - res[1].end = IOP13XX_PCIX_UPPER_MEM_RA; - res[1].name = "IQ81340 ATUX PCI Memory Space"; - res[1].flags = IORESOURCE_MEM; + res->start = IOP13XX_PCIX_LOWER_MEM_RA; + res->end = IOP13XX_PCIX_UPPER_MEM_RA; + res->name = "IQ81340 ATUX PCI Memory Space"; + res->flags = IORESOURCE_MEM; sys->mem_offset = IOP13XX_PCIX_MEM_OFFSET; - sys->io_offset = IOP13XX_PCIX_LOWER_IO_PA; break; case IOP13XX_INIT_ATU_ATUE: /* Note: the function number field in the PCSR is ro */ @@ -1063,17 +1058,13 @@ int iop13xx_pci_setup(int nr, struct pci_sys_data *sys) __raw_writel(pcsr, IOP13XX_ATUE_PCSR); - res[0].start = IOP13XX_PCIE_LOWER_IO_PA + IOP13XX_PCIE_IO_BUS_OFFSET; - res[0].end = IOP13XX_PCIE_UPPER_IO_PA; - res[0].name = "IQ81340 ATUE PCI I/O Space"; - res[0].flags = IORESOURCE_IO; + pci_ioremap_io(SZ_64K, IOP13XX_PCIE_LOWER_IO_PA); - res[1].start = IOP13XX_PCIE_LOWER_MEM_RA; - res[1].end = IOP13XX_PCIE_UPPER_MEM_RA; - res[1].name = "IQ81340 ATUE PCI Memory Space"; - res[1].flags = IORESOURCE_MEM; + res->start = IOP13XX_PCIE_LOWER_MEM_RA; + res->end = IOP13XX_PCIE_UPPER_MEM_RA; + res->name = "IQ81340 ATUE PCI Memory Space"; + res->flags = IORESOURCE_MEM; sys->mem_offset = IOP13XX_PCIE_MEM_OFFSET; - sys->io_offset = IOP13XX_PCIE_LOWER_IO_PA; sys->map_irq = iop13xx_pcie_map_irq; break; default: @@ -1081,11 +1072,9 @@ int iop13xx_pci_setup(int nr, struct pci_sys_data *sys) return 0; } - request_resource(&ioport_resource, &res[0]); - request_resource(&iomem_resource, &res[1]); + request_resource(&iomem_resource, res); - pci_add_resource_offset(&sys->resources, &res[0], sys->io_offset); - pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset); + pci_add_resource_offset(&sys->resources, res, sys->mem_offset); return 1; } diff --git a/arch/arm/mach-iop13xx/setup.c b/arch/arm/mach-iop13xx/setup.c index daabb1f..4a7f20d7 100644 --- a/arch/arm/mach-iop13xx/setup.c +++ b/arch/arm/mach-iop13xx/setup.c @@ -40,16 +40,6 @@ static struct map_desc iop13xx_std_desc[] __initdata = { .pfn = __phys_to_pfn(IOP13XX_PMMR_PHYS_MEM_BASE), .length = IOP13XX_PMMR_SIZE, .type = MT_DEVICE, - }, { /* PCIE IO space */ - .virtual = IOP13XX_PCIE_LOWER_IO_VA, - .pfn = __phys_to_pfn(IOP13XX_PCIE_LOWER_IO_PA), - .length = IOP13XX_PCIX_IO_WINDOW_SIZE, - .type = MT_DEVICE, - }, { /* PCIX IO space */ - .virtual = IOP13XX_PCIX_LOWER_IO_VA, - .pfn = __phys_to_pfn(IOP13XX_PCIX_LOWER_IO_PA), - .length = IOP13XX_PCIX_IO_WINDOW_SIZE, - .type = MT_DEVICE, }, }; diff --git a/arch/arm/mach-iop32x/include/mach/io.h b/arch/arm/mach-iop32x/include/mach/io.h deleted file mode 100644 index e2ada26..0000000 --- a/arch/arm/mach-iop32x/include/mach/io.h +++ /dev/null @@ -1,19 +0,0 @@ -/* - * arch/arm/mach-iop32x/include/mach/io.h - * - * Copyright (C) 2001 MontaVista Software, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef __IO_H -#define __IO_H - -#include <asm/hardware/iop3xx.h> - -#define IO_SPACE_LIMIT 0xffffffff -#define __io(p) ((void __iomem *)IOP3XX_PCI_IO_PHYS_TO_VIRT(p)) - -#endif diff --git a/arch/arm/mach-iop33x/include/mach/io.h b/arch/arm/mach-iop33x/include/mach/io.h deleted file mode 100644 index f7c1b65..0000000 --- a/arch/arm/mach-iop33x/include/mach/io.h +++ /dev/null @@ -1,19 +0,0 @@ -/* - * arch/arm/mach-iop33x/include/mach/io.h - * - * Copyright (C) 2001 MontaVista Software, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef __IO_H -#define __IO_H - -#include <asm/hardware/iop3xx.h> - -#define IO_SPACE_LIMIT 0xffffffff -#define __io(p) ((void __iomem *)IOP3XX_PCI_IO_PHYS_TO_VIRT(p)) - -#endif diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c index c4b64ad..31d9f40 100644 --- a/arch/arm/mach-kirkwood/common.c +++ b/arch/arm/mach-kirkwood/common.c @@ -42,16 +42,6 @@ ****************************************************************************/ static struct map_desc kirkwood_io_desc[] __initdata = { { - .virtual = KIRKWOOD_PCIE_IO_VIRT_BASE, - .pfn = __phys_to_pfn(KIRKWOOD_PCIE_IO_PHYS_BASE), - .length = KIRKWOOD_PCIE_IO_SIZE, - .type = MT_DEVICE, - }, { - .virtual = KIRKWOOD_PCIE1_IO_VIRT_BASE, - .pfn = __phys_to_pfn(KIRKWOOD_PCIE1_IO_PHYS_BASE), - .length = KIRKWOOD_PCIE1_IO_SIZE, - .type = MT_DEVICE, - }, { .virtual = KIRKWOOD_REGS_VIRT_BASE, .pfn = __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE), .length = KIRKWOOD_REGS_SIZE, diff --git a/arch/arm/mach-kirkwood/include/mach/io.h b/arch/arm/mach-kirkwood/include/mach/io.h deleted file mode 100644 index 5d0ab61..0000000 --- a/arch/arm/mach-kirkwood/include/mach/io.h +++ /dev/null @@ -1,24 +0,0 @@ -/* - * arch/arm/mach-kirkwood/include/mach/io.h - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#ifndef __ASM_ARCH_IO_H -#define __ASM_ARCH_IO_H - -#include "kirkwood.h" - -#define IO_SPACE_LIMIT 0xffffffff - -static inline void __iomem *__io(unsigned long addr) -{ - return (void __iomem *)((addr - KIRKWOOD_PCIE_IO_BUS_BASE) - + KIRKWOOD_PCIE_IO_VIRT_BASE); -} - -#define __io(a) __io(a) - -#endif diff --git a/arch/arm/mach-kirkwood/include/mach/kirkwood.h b/arch/arm/mach-kirkwood/include/mach/kirkwood.h index c5b6851..af4f000 100644 --- a/arch/arm/mach-kirkwood/include/mach/kirkwood.h +++ b/arch/arm/mach-kirkwood/include/mach/kirkwood.h @@ -37,14 +37,12 @@ #define KIRKWOOD_NAND_MEM_SIZE SZ_1K #define KIRKWOOD_PCIE1_IO_PHYS_BASE 0xf3000000 -#define KIRKWOOD_PCIE1_IO_VIRT_BASE 0xfef00000 -#define KIRKWOOD_PCIE1_IO_BUS_BASE 0x00100000 -#define KIRKWOOD_PCIE1_IO_SIZE SZ_1M +#define KIRKWOOD_PCIE1_IO_BUS_BASE 0x00010000 +#define KIRKWOOD_PCIE1_IO_SIZE SZ_64K #define KIRKWOOD_PCIE_IO_PHYS_BASE 0xf2000000 -#define KIRKWOOD_PCIE_IO_VIRT_BASE 0xfee00000 #define KIRKWOOD_PCIE_IO_BUS_BASE 0x00000000 -#define KIRKWOOD_PCIE_IO_SIZE SZ_1M +#define KIRKWOOD_PCIE_IO_SIZE SZ_64K #define KIRKWOOD_REGS_PHYS_BASE 0xf1000000 #define KIRKWOOD_REGS_VIRT_BASE 0xfed00000 diff --git a/arch/arm/mach-kirkwood/pcie.c b/arch/arm/mach-kirkwood/pcie.c index 6e8b2ef..532d8ac 100644 --- a/arch/arm/mach-kirkwood/pcie.c +++ b/arch/arm/mach-kirkwood/pcie.c @@ -56,7 +56,7 @@ struct pcie_port { void __iomem *base; spinlock_t conf_lock; int irq; - struct resource res[2]; + struct resource res; }; static int pcie_port_map[2]; @@ -137,20 +137,12 @@ static void __init pcie0_ioresources_init(struct pcie_port *pp) pp->irq = IRQ_KIRKWOOD_PCIE; /* - * IORESOURCE_IO - */ - pp->res[0].name = "PCIe 0 I/O Space"; - pp->res[0].start = KIRKWOOD_PCIE_IO_BUS_BASE; - pp->res[0].end = pp->res[0].start + KIRKWOOD_PCIE_IO_SIZE - 1; - pp->res[0].flags = IORESOURCE_IO; - - /* * IORESOURCE_MEM */ - pp->res[1].name = "PCIe 0 MEM"; - pp->res[1].start = KIRKWOOD_PCIE_MEM_PHYS_BASE; - pp->res[1].end = pp->res[1].start + KIRKWOOD_PCIE_MEM_SIZE - 1; - pp->res[1].flags = IORESOURCE_MEM; + pp->res.name = "PCIe 0 MEM"; + pp->res.start = KIRKWOOD_PCIE_MEM_PHYS_BASE; + pp->res.end = pp->res.start + KIRKWOOD_PCIE_MEM_SIZE - 1; + pp->res.flags = IORESOURCE_MEM; } static void __init pcie1_ioresources_init(struct pcie_port *pp) @@ -159,20 +151,12 @@ static void __init pcie1_ioresources_init(struct pcie_port *pp) pp->irq = IRQ_KIRKWOOD_PCIE1; /* - * IORESOURCE_IO - */ - pp->res[0].name = "PCIe 1 I/O Space"; - pp->res[0].start = KIRKWOOD_PCIE1_IO_BUS_BASE; - pp->res[0].end = pp->res[0].start + KIRKWOOD_PCIE1_IO_SIZE - 1; - pp->res[0].flags = IORESOURCE_IO; - - /* * IORESOURCE_MEM */ - pp->res[1].name = "PCIe 1 MEM"; - pp->res[1].start = KIRKWOOD_PCIE1_MEM_PHYS_BASE; - pp->res[1].end = pp->res[1].start + KIRKWOOD_PCIE1_MEM_SIZE - 1; - pp->res[1].flags = IORESOURCE_MEM; + pp->res.name = "PCIe 1 MEM"; + pp->res.start = KIRKWOOD_PCIE1_MEM_PHYS_BASE; + pp->res.end = pp->res.start + KIRKWOOD_PCIE1_MEM_SIZE - 1; + pp->res.flags = IORESOURCE_MEM; } static int __init kirkwood_pcie_setup(int nr, struct pci_sys_data *sys) @@ -197,23 +181,21 @@ static int __init kirkwood_pcie_setup(int nr, struct pci_sys_data *sys) case 0: kirkwood_enable_pcie_clk("0"); pcie0_ioresources_init(pp); + pci_ioremap_io(SZ_64K * sys->busnr, KIRKWOOD_PCIE_IO_PHYS_BASE); break; case 1: kirkwood_enable_pcie_clk("1"); pcie1_ioresources_init(pp); + pci_ioremap_io(SZ_64K * sys->busnr, KIRKWOOD_PCIE1_IO_PHYS_BASE); break; default: panic("PCIe setup: invalid controller %d", index); } - if (request_resource(&ioport_resource, &pp->res[0])) - panic("Request PCIe%d IO resource failed\n", index); - if (request_resource(&iomem_resource, &pp->res[1])) + if (request_resource(&iomem_resource, &pp->res)) panic("Request PCIe%d Memory resource failed\n", index); - sys->io_offset = 0; - pci_add_resource_offset(&sys->resources, &pp->res[0], sys->io_offset); - pci_add_resource_offset(&sys->resources, &pp->res[1], sys->mem_offset); + pci_add_resource_offset(&sys->resources, &pp->res, sys->mem_offset); /* * Generic PCIe unit setup. diff --git a/arch/arm/mach-mv78xx0/addr-map.c b/arch/arm/mach-mv78xx0/addr-map.c index 62b53d7..7764d93 100644 --- a/arch/arm/mach-mv78xx0/addr-map.c +++ b/arch/arm/mach-mv78xx0/addr-map.c @@ -13,6 +13,7 @@ #include <linux/mbus.h> #include <linux/io.h> #include <plat/addr-map.h> +#include <mach/mv78xx0.h> #include "common.h" /* @@ -81,7 +82,7 @@ void __init mv78xx0_setup_pcie_io_win(int window, u32 base, u32 size, int maj, int min) { orion_setup_cpu_win(&addr_map_cfg, window, base, size, - TARGET_PCIE(maj), ATTR_PCIE_IO(min), -1); + TARGET_PCIE(maj), ATTR_PCIE_IO(min), 0); } void __init mv78xx0_setup_pcie_mem_win(int window, u32 base, u32 size, diff --git a/arch/arm/mach-mv78xx0/common.c b/arch/arm/mach-mv78xx0/common.c index b4c53b8..2082644 100644 --- a/arch/arm/mach-mv78xx0/common.c +++ b/arch/arm/mach-mv78xx0/common.c @@ -135,11 +135,6 @@ static struct map_desc mv78xx0_io_desc[] __initdata = { .length = MV78XX0_CORE_REGS_SIZE, .type = MT_DEVICE, }, { - .virtual = MV78XX0_PCIE_IO_VIRT_BASE(0), - .pfn = __phys_to_pfn(MV78XX0_PCIE_IO_PHYS_BASE(0)), - .length = MV78XX0_PCIE_IO_SIZE * 8, - .type = MT_DEVICE, - }, { .virtual = MV78XX0_REGS_VIRT_BASE, .pfn = __phys_to_pfn(MV78XX0_REGS_PHYS_BASE), .length = MV78XX0_REGS_SIZE, diff --git a/arch/arm/mach-mv78xx0/include/mach/io.h b/arch/arm/mach-mv78xx0/include/mach/io.h deleted file mode 100644 index c7d9d00..0000000 --- a/arch/arm/mach-mv78xx0/include/mach/io.h +++ /dev/null @@ -1,24 +0,0 @@ -/* - * arch/arm/mach-mv78xx0/include/mach/io.h - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#ifndef __ASM_ARCH_IO_H -#define __ASM_ARCH_IO_H - -#include "mv78xx0.h" - -#define IO_SPACE_LIMIT 0xffffffff - -static inline void __iomem *__io(unsigned long addr) -{ - return (void __iomem *)((addr - MV78XX0_PCIE_IO_PHYS_BASE(0)) - + MV78XX0_PCIE_IO_VIRT_BASE(0)); -} - -#define __io(a) __io(a) - -#endif diff --git a/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h b/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h index e807c4c..bd03fed 100644 --- a/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h +++ b/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h @@ -29,15 +29,15 @@ * * virt phys size * fe400000 f102x000 16K core-specific peripheral registers - * fe700000 f0800000 1M PCIe #0 I/O space - * fe800000 f0900000 1M PCIe #1 I/O space - * fe900000 f0a00000 1M PCIe #2 I/O space - * fea00000 f0b00000 1M PCIe #3 I/O space - * feb00000 f0c00000 1M PCIe #4 I/O space - * fec00000 f0d00000 1M PCIe #5 I/O space - * fed00000 f0e00000 1M PCIe #6 I/O space - * fee00000 f0f00000 1M PCIe #7 I/O space - * fef00000 f1000000 1M on-chip peripheral registers + * fee00000 f0800000 64K PCIe #0 I/O space + * fee10000 f0900000 64K PCIe #1 I/O space + * fee20000 f0a00000 64K PCIe #2 I/O space + * fee30000 f0b00000 64K PCIe #3 I/O space + * fee40000 f0c00000 64K PCIe #4 I/O space + * fee50000 f0d00000 64K PCIe #5 I/O space + * fee60000 f0e00000 64K PCIe #6 I/O space + * fee70000 f0f00000 64K PCIe #7 I/O space + * fd000000 f1000000 1M on-chip peripheral registers */ #define MV78XX0_CORE0_REGS_PHYS_BASE 0xf1020000 #define MV78XX0_CORE1_REGS_PHYS_BASE 0xf1024000 @@ -46,11 +46,10 @@ #define MV78XX0_CORE_REGS_SIZE SZ_16K #define MV78XX0_PCIE_IO_PHYS_BASE(i) (0xf0800000 + ((i) << 20)) -#define MV78XX0_PCIE_IO_VIRT_BASE(i) (0xfe700000 + ((i) << 20)) #define MV78XX0_PCIE_IO_SIZE SZ_1M #define MV78XX0_REGS_PHYS_BASE 0xf1000000 -#define MV78XX0_REGS_VIRT_BASE 0xfef00000 +#define MV78XX0_REGS_VIRT_BASE 0xfd000000 #define MV78XX0_REGS_SIZE SZ_1M #define MV78XX0_PCIE_MEM_PHYS_BASE 0xc0000000 diff --git a/arch/arm/mach-mv78xx0/pcie.c b/arch/arm/mach-mv78xx0/pcie.c index 2e56e86..26a059b 100644 --- a/arch/arm/mach-mv78xx0/pcie.c +++ b/arch/arm/mach-mv78xx0/pcie.c @@ -15,6 +15,7 @@ #include <asm/mach/pci.h> #include <plat/pcie.h> #include <plat/addr-map.h> +#include <mach/mv78xx0.h> #include "common.h" struct pcie_port { @@ -23,16 +24,13 @@ struct pcie_port { u8 root_bus_nr; void __iomem *base; spinlock_t conf_lock; - char io_space_name[16]; char mem_space_name[16]; - struct resource res[2]; + struct resource res; }; static struct pcie_port pcie_port[8]; static int num_pcie_ports; static struct resource pcie_io_space; -static struct resource pcie_mem_space; - void __init mv78xx0_pcie_id(u32 *dev, u32 *rev) { @@ -40,102 +38,59 @@ void __init mv78xx0_pcie_id(u32 *dev, u32 *rev) *rev = orion_pcie_rev((void __iomem *)PCIE00_VIRT_BASE); } +u32 pcie_port_size[8] = { + 0, + 0x30000000, + 0x10000000, + 0x10000000, + 0x08000000, + 0x08000000, + 0x08000000, + 0x04000000, +}; + static void __init mv78xx0_pcie_preinit(void) { int i; u32 size_each; u32 start; - int win; + int win = 0; pcie_io_space.name = "PCIe I/O Space"; pcie_io_space.start = MV78XX0_PCIE_IO_PHYS_BASE(0); pcie_io_space.end = MV78XX0_PCIE_IO_PHYS_BASE(0) + MV78XX0_PCIE_IO_SIZE * 8 - 1; - pcie_io_space.flags = IORESOURCE_IO; + pcie_io_space.flags = IORESOURCE_MEM; if (request_resource(&iomem_resource, &pcie_io_space)) panic("can't allocate PCIe I/O space"); - pcie_mem_space.name = "PCIe MEM Space"; - pcie_mem_space.start = MV78XX0_PCIE_MEM_PHYS_BASE; - pcie_mem_space.end = - MV78XX0_PCIE_MEM_PHYS_BASE + MV78XX0_PCIE_MEM_SIZE - 1; - pcie_mem_space.flags = IORESOURCE_MEM; - if (request_resource(&iomem_resource, &pcie_mem_space)) - panic("can't allocate PCIe MEM space"); + if (num_pcie_ports > 7) + panic("invalid number of PCIe ports"); + + size_each = pcie_port_size[num_pcie_ports]; + start = MV78XX0_PCIE_MEM_PHYS_BASE; for (i = 0; i < num_pcie_ports; i++) { struct pcie_port *pp = pcie_port + i; - snprintf(pp->io_space_name, sizeof(pp->io_space_name), - "PCIe %d.%d I/O", pp->maj, pp->min); - pp->io_space_name[sizeof(pp->io_space_name) - 1] = 0; - pp->res[0].name = pp->io_space_name; - pp->res[0].start = MV78XX0_PCIE_IO_PHYS_BASE(i); - pp->res[0].end = pp->res[0].start + MV78XX0_PCIE_IO_SIZE - 1; - pp->res[0].flags = IORESOURCE_IO; - snprintf(pp->mem_space_name, sizeof(pp->mem_space_name), "PCIe %d.%d MEM", pp->maj, pp->min); pp->mem_space_name[sizeof(pp->mem_space_name) - 1] = 0; - pp->res[1].name = pp->mem_space_name; - pp->res[1].flags = IORESOURCE_MEM; - } - - switch (num_pcie_ports) { - case 0: - size_each = 0; - break; - - case 1: - size_each = 0x30000000; - break; - - case 2 ... 3: - size_each = 0x10000000; - break; - - case 4 ... 6: - size_each = 0x08000000; - break; - - case 7: - size_each = 0x04000000; - break; - - default: - panic("invalid number of PCIe ports"); - } - - start = MV78XX0_PCIE_MEM_PHYS_BASE; - for (i = 0; i < num_pcie_ports; i++) { - struct pcie_port *pp = pcie_port + i; - - pp->res[1].start = start; - pp->res[1].end = start + size_each - 1; + pp->res.name = pp->mem_space_name; + pp->res.flags = IORESOURCE_MEM; + pp->res.start = start; + pp->res.end = start + size_each - 1; start += size_each; - } - - for (i = 0; i < num_pcie_ports; i++) { - struct pcie_port *pp = pcie_port + i; - if (request_resource(&pcie_io_space, &pp->res[0])) - panic("can't allocate PCIe I/O sub-space"); - - if (request_resource(&pcie_mem_space, &pp->res[1])) + if (request_resource(&iomem_resource, &pp->res)) panic("can't allocate PCIe MEM sub-space"); - } - win = 0; - for (i = 0; i < num_pcie_ports; i++) { - struct pcie_port *pp = pcie_port + i; + mv78xx0_setup_pcie_mem_win(win + i + 8, pp->res.start, + resource_size(&pp->res), + pp->maj, pp->min); - mv78xx0_setup_pcie_io_win(win++, pp->res[0].start, - resource_size(&pp->res[0]), + mv78xx0_setup_pcie_io_win(win + i, i * SZ_64K, SZ_64K, pp->maj, pp->min); - - mv78xx0_setup_pcie_mem_win(win++, pp->res[1].start, - resource_size(&pp->res[1]), - pp->maj, pp->min); } } @@ -156,8 +111,9 @@ static int __init mv78xx0_pcie_setup(int nr, struct pci_sys_data *sys) orion_pcie_set_local_bus_nr(pp->base, sys->busnr); orion_pcie_setup(pp->base); - pci_add_resource_offset(&sys->resources, &pp->res[0], sys->io_offset); - pci_add_resource_offset(&sys->resources, &pp->res[1], sys->mem_offset); + pci_ioremap_io(nr * SZ_64K, MV78XX0_PCIE_IO_PHYS_BASE(nr)); + + pci_add_resource_offset(&sys->resources, &pp->res, sys->mem_offset); return 1; } @@ -281,7 +237,7 @@ static void __init add_pcie_port(int maj, int min, unsigned long base) pp->root_bus_nr = -1; pp->base = (void __iomem *)base; spin_lock_init(&pp->conf_lock); - memset(pp->res, 0, sizeof(pp->res)); + memset(&pp->res, 0, sizeof(pp->res)); } else { printk("link down, ignoring\n"); } diff --git a/arch/arm/mach-orion5x/common.c b/arch/arm/mach-orion5x/common.c index 9148b22..70f7d71 100644 --- a/arch/arm/mach-orion5x/common.c +++ b/arch/arm/mach-orion5x/common.c @@ -47,16 +47,6 @@ static struct map_desc orion5x_io_desc[] __initdata = { .length = ORION5X_REGS_SIZE, .type = MT_DEVICE, }, { - .virtual = ORION5X_PCIE_IO_VIRT_BASE, - .pfn = __phys_to_pfn(ORION5X_PCIE_IO_PHYS_BASE), - .length = ORION5X_PCIE_IO_SIZE, - .type = MT_DEVICE, - }, { - .virtual = ORION5X_PCI_IO_VIRT_BASE, - .pfn = __phys_to_pfn(ORION5X_PCI_IO_PHYS_BASE), - .length = ORION5X_PCI_IO_SIZE, - .type = MT_DEVICE, - }, { .virtual = ORION5X_PCIE_WA_VIRT_BASE, .pfn = __phys_to_pfn(ORION5X_PCIE_WA_PHYS_BASE), .length = ORION5X_PCIE_WA_SIZE, diff --git a/arch/arm/mach-orion5x/include/mach/io.h b/arch/arm/mach-orion5x/include/mach/io.h deleted file mode 100644 index 1aa5d0a..0000000 --- a/arch/arm/mach-orion5x/include/mach/io.h +++ /dev/null @@ -1,22 +0,0 @@ -/* - * arch/arm/mach-orion5x/include/mach/io.h - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#ifndef __ASM_ARCH_IO_H -#define __ASM_ARCH_IO_H - -#include <mach/orion5x.h> -#include <asm/sizes.h> - -#define IO_SPACE_LIMIT SZ_2M -static inline void __iomem *__io(unsigned long addr) -{ - return (void __iomem *)(addr + ORION5X_PCIE_IO_VIRT_BASE); -} - -#define __io(a) __io(a) -#endif diff --git a/arch/arm/mach-orion5x/include/mach/orion5x.h b/arch/arm/mach-orion5x/include/mach/orion5x.h index 683e085..1b60131 100644 --- a/arch/arm/mach-orion5x/include/mach/orion5x.h +++ b/arch/arm/mach-orion5x/include/mach/orion5x.h @@ -31,31 +31,29 @@ * fc000000 device bus mappings (cs0/cs1) * * virt phys size - * fdd00000 f1000000 1M on-chip peripheral registers - * fde00000 f2000000 1M PCIe I/O space - * fdf00000 f2100000 1M PCI I/O space - * fe000000 f0000000 16M PCIe WA space (Orion-1/Orion-NAS only) + * fe000000 f1000000 1M on-chip peripheral registers + * fee00000 f2000000 64K PCIe I/O space + * fee10000 f2100000 64K PCI I/O space + * fd000000 f0000000 16M PCIe WA space (Orion-1/Orion-NAS only) ****************************************************************************/ #define ORION5X_REGS_PHYS_BASE 0xf1000000 -#define ORION5X_REGS_VIRT_BASE 0xfdd00000 +#define ORION5X_REGS_VIRT_BASE 0xfe000000 #define ORION5X_REGS_SIZE SZ_1M #define ORION5X_PCIE_IO_PHYS_BASE 0xf2000000 -#define ORION5X_PCIE_IO_VIRT_BASE 0xfde00000 #define ORION5X_PCIE_IO_BUS_BASE 0x00000000 -#define ORION5X_PCIE_IO_SIZE SZ_1M +#define ORION5X_PCIE_IO_SIZE SZ_64K #define ORION5X_PCI_IO_PHYS_BASE 0xf2100000 -#define ORION5X_PCI_IO_VIRT_BASE 0xfdf00000 -#define ORION5X_PCI_IO_BUS_BASE 0x00100000 -#define ORION5X_PCI_IO_SIZE SZ_1M +#define ORION5X_PCI_IO_BUS_BASE 0x00010000 +#define ORION5X_PCI_IO_SIZE SZ_64K #define ORION5X_SRAM_PHYS_BASE (0xf2200000) #define ORION5X_SRAM_SIZE SZ_8K /* Relevant only for Orion-1/Orion-NAS */ #define ORION5X_PCIE_WA_PHYS_BASE 0xf0000000 -#define ORION5X_PCIE_WA_VIRT_BASE 0xfe000000 +#define ORION5X_PCIE_WA_VIRT_BASE 0xfd000000 #define ORION5X_PCIE_WA_SIZE SZ_16M #define ORION5X_PCIE_MEM_PHYS_BASE 0xe0000000 diff --git a/arch/arm/mach-orion5x/pci.c b/arch/arm/mach-orion5x/pci.c index cb19e16..6921d49 100644 --- a/arch/arm/mach-orion5x/pci.c +++ b/arch/arm/mach-orion5x/pci.c @@ -162,35 +162,25 @@ static int __init pcie_setup(struct pci_sys_data *sys) pcie_ops.read = pcie_rd_conf_wa; } + pci_ioremap_io(sys->busnr * SZ_64K, ORION5X_PCIE_IO_PHYS_BASE); + /* * Request resources. */ - res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL); + res = kzalloc(sizeof(struct resource), GFP_KERNEL); if (!res) panic("pcie_setup unable to alloc resources"); /* - * IORESOURCE_IO - */ - sys->io_offset = 0; - res[0].name = "PCIe I/O Space"; - res[0].flags = IORESOURCE_IO; - res[0].start = ORION5X_PCIE_IO_BUS_BASE; - res[0].end = res[0].start + ORION5X_PCIE_IO_SIZE - 1; - if (request_resource(&ioport_resource, &res[0])) - panic("Request PCIe IO resource failed\n"); - pci_add_resource_offset(&sys->resources, &res[0], sys->io_offset); - - /* * IORESOURCE_MEM */ - res[1].name = "PCIe Memory Space"; - res[1].flags = IORESOURCE_MEM; - res[1].start = ORION5X_PCIE_MEM_PHYS_BASE; - res[1].end = res[1].start + ORION5X_PCIE_MEM_SIZE - 1; - if (request_resource(&iomem_resource, &res[1])) + res->name = "PCIe Memory Space"; + res->flags = IORESOURCE_MEM; + res->start = ORION5X_PCIE_MEM_PHYS_BASE; + res->end = res->start + ORION5X_PCIE_MEM_SIZE - 1; + if (request_resource(&iomem_resource, res)) panic("Request PCIe Memory resource failed\n"); - pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset); + pci_add_resource_offset(&sys->resources, res, sys->mem_offset); return 1; } @@ -489,35 +479,25 @@ static int __init pci_setup(struct pci_sys_data *sys) */ orion5x_setbits(PCI_CMD, PCI_CMD_HOST_REORDER); + pci_ioremap_io(sys->busnr * SZ_64K, ORION5X_PCI_IO_PHYS_BASE); + /* * Request resources */ - res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL); + res = kzalloc(sizeof(struct resource), GFP_KERNEL); if (!res) panic("pci_setup unable to alloc resources"); /* - * IORESOURCE_IO - */ - sys->io_offset = 0; - res[0].name = "PCI I/O Space"; - res[0].flags = IORESOURCE_IO; - res[0].start = ORION5X_PCI_IO_BUS_BASE; - res[0].end = res[0].start + ORION5X_PCI_IO_SIZE - 1; - if (request_resource(&ioport_resource, &res[0])) - panic("Request PCI IO resource failed\n"); - pci_add_resource_offset(&sys->resources, &res[0], sys->io_offset); - - /* * IORESOURCE_MEM */ - res[1].name = "PCI Memory Space"; - res[1].flags = IORESOURCE_MEM; - res[1].start = ORION5X_PCI_MEM_PHYS_BASE; - res[1].end = res[1].start + ORION5X_PCI_MEM_SIZE - 1; - if (request_resource(&iomem_resource, &res[1])) + res->name = "PCI Memory Space"; + res->flags = IORESOURCE_MEM; + res->start = ORION5X_PCI_MEM_PHYS_BASE; + res->end = res->start + ORION5X_PCI_MEM_SIZE - 1; + if (request_resource(&iomem_resource, res)) panic("Request PCI Memory resource failed\n"); - pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset); + pci_add_resource_offset(&sys->resources, res, sys->mem_offset); return 1; } diff --git a/arch/arm/mach-shark/core.c b/arch/arm/mach-shark/core.c index 2704bcd..d35b94e 100644 --- a/arch/arm/mach-shark/core.c +++ b/arch/arm/mach-shark/core.c @@ -21,9 +21,6 @@ #include <asm/mach/arch.h> #include <asm/mach/time.h> -#define IO_BASE 0xe0000000 -#define IO_SIZE 0x08000000 -#define IO_START 0x40000000 #define ROMCARD_SIZE 0x08000000 #define ROMCARD_START 0x10000000 @@ -104,20 +101,6 @@ arch_initcall(shark_init); extern void shark_init_irq(void); -static struct map_desc shark_io_desc[] __initdata = { - { - .virtual = IO_BASE, - .pfn = __phys_to_pfn(IO_START), - .length = IO_SIZE, - .type = MT_DEVICE - } -}; - -static void __init shark_map_io(void) -{ - iotable_init(shark_io_desc, ARRAY_SIZE(shark_io_desc)); -} - #define IRQ_TIMER 0 #define HZ_TIME ((1193180 + HZ/2) / HZ) @@ -158,7 +141,6 @@ static void shark_init_early(void) MACHINE_START(SHARK, "Shark") /* Maintainer: Alexander Schulz */ .atag_offset = 0x3000, - .map_io = shark_map_io, .init_early = shark_init_early, .init_irq = shark_init_irq, .timer = &shark_timer, diff --git a/arch/arm/mach-shark/include/mach/debug-macro.S b/arch/arm/mach-shark/include/mach/debug-macro.S index 20eb2bf..d129119 100644 --- a/arch/arm/mach-shark/include/mach/debug-macro.S +++ b/arch/arm/mach-shark/include/mach/debug-macro.S @@ -12,9 +12,10 @@ */ .macro addruart, rp, rv, tmp - mov \rp, #0xe0000000 - orr \rp, \rp, #0x000003f8 - mov \rv, \rp + mov \rp, #0x3f8 + orr \rv, \rp, #0xfe000000 + orr \rv, \rv, #0x00e00000 + orr \rp, \rp, #0x40000000 .endm .macro senduart,rd,rx diff --git a/arch/arm/mach-shark/include/mach/entry-macro.S b/arch/arm/mach-shark/include/mach/entry-macro.S index 5901b09..c9e49f0 100644 --- a/arch/arm/mach-shark/include/mach/entry-macro.S +++ b/arch/arm/mach-shark/include/mach/entry-macro.S @@ -8,7 +8,8 @@ * warranty of any kind, whether express or implied. */ .macro get_irqnr_preamble, base, tmp - mov \base, #0xe0000000 + mov \base, #0xfe000000 + orr \base, \base, #0x00e00000 .endm .macro get_irqnr_and_base, irqnr, irqstat, base, tmp diff --git a/arch/arm/mach-shark/include/mach/io.h b/arch/arm/mach-shark/include/mach/io.h deleted file mode 100644 index 1a45fc0..0000000 --- a/arch/arm/mach-shark/include/mach/io.h +++ /dev/null @@ -1,18 +0,0 @@ -/* - * arch/arm/mach-shark/include/mach/io.h - * - * by Alexander Schulz - * - * derived from: - * arch/arm/mach-ebsa110/include/mach/io.h - * Copyright (C) 1997,1998 Russell King - */ - -#ifndef __ASM_ARM_ARCH_IO_H -#define __ASM_ARM_ARCH_IO_H - -#define IO_SPACE_LIMIT 0xffffffff - -#define __io(a) ((void __iomem *)(0xe0000000 + (a))) - -#endif diff --git a/arch/arm/mach-shark/pci.c b/arch/arm/mach-shark/pci.c index 9089407..b8b4ab3 100644 --- a/arch/arm/mach-shark/pci.c +++ b/arch/arm/mach-shark/pci.c @@ -8,12 +8,15 @@ #include <linux/kernel.h> #include <linux/pci.h> #include <linux/init.h> +#include <linux/io.h> #include <video/vga.h> #include <asm/irq.h> #include <asm/mach/pci.h> #include <asm/mach-types.h> +#define IO_START 0x40000000 + static int __init shark_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { if (dev->bus->number == 0) @@ -44,6 +47,8 @@ static int __init shark_pci_init(void) pcibios_min_mem = 0x50000000; vga_base = 0xe8000000; + pci_ioremap_io(0, IO_START); + pci_common_init(&shark_pci); return 0; diff --git a/arch/arm/mach-tegra/include/mach/io.h b/arch/arm/mach-tegra/include/mach/io.h deleted file mode 100644 index fe700f9..0000000 --- a/arch/arm/mach-tegra/include/mach/io.h +++ /dev/null @@ -1,46 +0,0 @@ -/* - * arch/arm/mach-tegra/include/mach/io.h - * - * Copyright (C) 2010 Google, Inc. - * - * Author: - * Colin Cross <ccross@google.com> - * Erik Gilling <konkers@google.com> - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * 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. - * - */ - -#ifndef __MACH_TEGRA_IO_H -#define __MACH_TEGRA_IO_H - -#define IO_SPACE_LIMIT 0xffff - -#ifndef __ASSEMBLER__ - -#ifdef CONFIG_TEGRA_PCI -extern void __iomem *tegra_pcie_io_base; - -static inline void __iomem *__io(unsigned long addr) -{ - return tegra_pcie_io_base + (addr & IO_SPACE_LIMIT); -} -#else -static inline void __iomem *__io(unsigned long addr) -{ - return (void __iomem *)addr; -} -#endif - -#define __io(a) __io(a) - -#endif - -#endif diff --git a/arch/arm/mach-tegra/include/mach/iomap.h b/arch/arm/mach-tegra/include/mach/iomap.h index 7e76da7..fee3a94 100644 --- a/arch/arm/mach-tegra/include/mach/iomap.h +++ b/arch/arm/mach-tegra/include/mach/iomap.h @@ -303,6 +303,9 @@ #define IO_APB_VIRT IOMEM(0xFE300000) #define IO_APB_SIZE SZ_1M +#define TEGRA_PCIE_BASE 0x80000000 +#define TEGRA_PCIE_IO_BASE (TEGRA_PCIE_BASE + SZ_4M) + #define IO_TO_VIRT_BETWEEN(p, st, sz) ((p) >= (st) && (p) < ((st) + (sz))) #define IO_TO_VIRT_XLATE(p, pst, vst) (((p) - (pst) + (vst))) diff --git a/arch/arm/mach-tegra/pcie.c b/arch/arm/mach-tegra/pcie.c index d3ad515..3463fb5 100644 --- a/arch/arm/mach-tegra/pcie.c +++ b/arch/arm/mach-tegra/pcie.c @@ -171,8 +171,6 @@ static void __iomem *reg_pmc_base = IO_ADDRESS(TEGRA_PMC_BASE); * 0x90000000 - 0x9fffffff - non-prefetchable memory * 0xa0000000 - 0xbfffffff - prefetchable memory */ -#define TEGRA_PCIE_BASE 0x80000000 - #define PCIE_REGS_SZ SZ_16K #define PCIE_CFG_OFF PCIE_REGS_SZ #define PCIE_CFG_SZ SZ_1M @@ -180,8 +178,6 @@ static void __iomem *reg_pmc_base = IO_ADDRESS(TEGRA_PMC_BASE); #define PCIE_EXT_CFG_SZ SZ_1M #define PCIE_IOMAP_SZ (PCIE_REGS_SZ + PCIE_CFG_SZ + PCIE_EXT_CFG_SZ) -#define MMIO_BASE (TEGRA_PCIE_BASE + SZ_4M) -#define MMIO_SIZE SZ_64K #define MEM_BASE_0 (TEGRA_PCIE_BASE + SZ_256M) #define MEM_SIZE_0 SZ_128M #define MEM_BASE_1 (MEM_BASE_0 + MEM_SIZE_0) @@ -204,10 +200,9 @@ struct tegra_pcie_port { bool link_up; - char io_space_name[16]; char mem_space_name[16]; char prefetch_space_name[20]; - struct resource res[3]; + struct resource res[2]; }; struct tegra_pcie_info { @@ -223,17 +218,7 @@ struct tegra_pcie_info { struct clk *pll_e; }; -static struct tegra_pcie_info tegra_pcie = { - .res_mmio = { - .name = "PCI IO", - .start = MMIO_BASE, - .end = MMIO_BASE + MMIO_SIZE - 1, - .flags = IORESOURCE_MEM, - }, -}; - -void __iomem *tegra_pcie_io_base; -EXPORT_SYMBOL(tegra_pcie_io_base); +static struct tegra_pcie_info tegra_pcie; static inline void afi_writel(u32 value, unsigned long offset) { @@ -391,24 +376,7 @@ static int tegra_pcie_setup(int nr, struct pci_sys_data *sys) pp = tegra_pcie.port + nr; pp->root_bus_nr = sys->busnr; - /* - * IORESOURCE_IO - */ - snprintf(pp->io_space_name, sizeof(pp->io_space_name), - "PCIe %d I/O", pp->index); - pp->io_space_name[sizeof(pp->io_space_name) - 1] = 0; - pp->res[0].name = pp->io_space_name; - if (pp->index == 0) { - pp->res[0].start = PCIBIOS_MIN_IO; - pp->res[0].end = pp->res[0].start + SZ_32K - 1; - } else { - pp->res[0].start = PCIBIOS_MIN_IO + SZ_32K; - pp->res[0].end = IO_SPACE_LIMIT; - } - pp->res[0].flags = IORESOURCE_IO; - if (request_resource(&ioport_resource, &pp->res[0])) - panic("Request PCIe IO resource failed\n"); - pci_add_resource_offset(&sys->resources, &pp->res[0], sys->io_offset); + pci_ioremap_io(nr * SZ_64K, TEGRA_PCIE_IO_BASE); /* * IORESOURCE_MEM @@ -416,18 +384,18 @@ static int tegra_pcie_setup(int nr, struct pci_sys_data *sys) snprintf(pp->mem_space_name, sizeof(pp->mem_space_name), "PCIe %d MEM", pp->index); pp->mem_space_name[sizeof(pp->mem_space_name) - 1] = 0; - pp->res[1].name = pp->mem_space_name; + pp->res[0].name = pp->mem_space_name; if (pp->index == 0) { - pp->res[1].start = MEM_BASE_0; - pp->res[1].end = pp->res[1].start + MEM_SIZE_0 - 1; + pp->res[0].start = MEM_BASE_0; + pp->res[0].end = pp->res[0].start + MEM_SIZE_0 - 1; } else { - pp->res[1].start = MEM_BASE_1; - pp->res[1].end = pp->res[1].start + MEM_SIZE_1 - 1; + pp->res[0].start = MEM_BASE_1; + pp->res[0].end = pp->res[0].start + MEM_SIZE_1 - 1; } - pp->res[1].flags = IORESOURCE_MEM; - if (request_resource(&iomem_resource, &pp->res[1])) + pp->res[0].flags = IORESOURCE_MEM; + if (request_resource(&iomem_resource, &pp->res[0])) panic("Request PCIe Memory resource failed\n"); - pci_add_resource_offset(&sys->resources, &pp->res[1], sys->mem_offset); + pci_add_resource_offset(&sys->resources, &pp->res[0], sys->mem_offset); /* * IORESOURCE_MEM | IORESOURCE_PREFETCH @@ -435,18 +403,18 @@ static int tegra_pcie_setup(int nr, struct pci_sys_data *sys) snprintf(pp->prefetch_space_name, sizeof(pp->prefetch_space_name), "PCIe %d PREFETCH MEM", pp->index); pp->prefetch_space_name[sizeof(pp->prefetch_space_name) - 1] = 0; - pp->res[2].name = pp->prefetch_space_name; + pp->res[1].name = pp->prefetch_space_name; if (pp->index == 0) { - pp->res[2].start = PREFETCH_MEM_BASE_0; - pp->res[2].end = pp->res[2].start + PREFETCH_MEM_SIZE_0 - 1; + pp->res[1].start = PREFETCH_MEM_BASE_0; + pp->res[1].end = pp->res[1].start + PREFETCH_MEM_SIZE_0 - 1; } else { - pp->res[2].start = PREFETCH_MEM_BASE_1; - pp->res[2].end = pp->res[2].start + PREFETCH_MEM_SIZE_1 - 1; + pp->res[1].start = PREFETCH_MEM_BASE_1; + pp->res[1].end = pp->res[1].start + PREFETCH_MEM_SIZE_1 - 1; } - pp->res[2].flags = IORESOURCE_MEM | IORESOURCE_PREFETCH; - if (request_resource(&iomem_resource, &pp->res[2])) + pp->res[1].flags = IORESOURCE_MEM | IORESOURCE_PREFETCH; + if (request_resource(&iomem_resource, &pp->res[1])) panic("Request PCIe Prefetch Memory resource failed\n"); - pci_add_resource_offset(&sys->resources, &pp->res[2], sys->mem_offset); + pci_add_resource_offset(&sys->resources, &pp->res[1], sys->mem_offset); return 1; } @@ -541,8 +509,8 @@ static void tegra_pcie_setup_translations(void) /* Bar 2: downstream IO bar */ fpci_bar = ((__u32)0xfdfc << 16); - size = MMIO_SIZE; - axi_address = MMIO_BASE; + size = SZ_128K; + axi_address = TEGRA_PCIE_IO_BASE; afi_writel(axi_address, AFI_AXI_BAR2_START); afi_writel(size >> 12, AFI_AXI_BAR2_SZ); afi_writel(fpci_bar, AFI_FPCI_BAR2); @@ -776,7 +744,6 @@ static void tegra_pcie_clocks_put(void) static int __init tegra_pcie_get_resources(void) { - struct resource *res_mmio = &tegra_pcie.res_mmio; int err; err = tegra_pcie_clocks_get(); @@ -798,34 +765,16 @@ static int __init tegra_pcie_get_resources(void) goto err_map_reg; } - err = request_resource(&iomem_resource, res_mmio); - if (err) { - pr_err("PCIE: Failed to request resources: %d\n", err); - goto err_req_io; - } - - tegra_pcie_io_base = ioremap_nocache(res_mmio->start, - resource_size(res_mmio)); - if (tegra_pcie_io_base == NULL) { - pr_err("PCIE: Failed to map IO\n"); - err = -ENOMEM; - goto err_map_io; - } - err = request_irq(INT_PCIE_INTR, tegra_pcie_isr, IRQF_SHARED, "PCIE", &tegra_pcie); if (err) { pr_err("PCIE: Failed to register IRQ: %d\n", err); - goto err_irq; + goto err_req_io; } set_irq_flags(INT_PCIE_INTR, IRQF_VALID); return 0; -err_irq: - iounmap(tegra_pcie_io_base); -err_map_io: - release_resource(&tegra_pcie.res_mmio); err_req_io: iounmap(tegra_pcie.regs); err_map_reg: diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c index cd8ea35..ca7902c 100644 --- a/arch/arm/mach-versatile/core.c +++ b/arch/arm/mach-versatile/core.c @@ -169,11 +169,6 @@ static struct map_desc versatile_io_desc[] __initdata = { .pfn = __phys_to_pfn(VERSATILE_PCI_CFG_BASE), .length = VERSATILE_PCI_CFG_BASE_SIZE, .type = MT_DEVICE - }, { - .virtual = (unsigned long)VERSATILE_PCI_VIRT_MEM_BASE0, - .pfn = __phys_to_pfn(VERSATILE_PCI_MEM_BASE0), - .length = IO_SPACE_LIMIT, - .type = MT_DEVICE }, #endif }; diff --git a/arch/arm/mach-versatile/include/mach/hardware.h b/arch/arm/mach-versatile/include/mach/hardware.h index 408e58d..3e5d425 100644 --- a/arch/arm/mach-versatile/include/mach/hardware.h +++ b/arch/arm/mach-versatile/include/mach/hardware.h @@ -29,7 +29,6 @@ */ #define VERSATILE_PCI_VIRT_BASE (void __iomem *)0xe8000000ul #define VERSATILE_PCI_CFG_VIRT_BASE (void __iomem *)0xe9000000ul -#define VERSATILE_PCI_VIRT_MEM_BASE0 (void __iomem *)PCIO_BASE /* macro to get at MMIO space when running virtually */ #define IO_ADDRESS(x) (((x) & 0x0fffffff) + (((x) >> 4) & 0x0f000000) + 0xf0000000) diff --git a/arch/arm/mach-versatile/include/mach/io.h b/arch/arm/mach-versatile/include/mach/io.h deleted file mode 100644 index 0406513..0000000 --- a/arch/arm/mach-versatile/include/mach/io.h +++ /dev/null @@ -1,27 +0,0 @@ -/* - * arch/arm/mach-versatile/include/mach/io.h - * - * Copyright (C) 2003 ARM Limited - * - * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#ifndef __ASM_ARM_ARCH_IO_H -#define __ASM_ARM_ARCH_IO_H - -#define PCIO_BASE 0xeb000000ul - -#define __io(a) ((a) + PCIO_BASE) - -#endif diff --git a/arch/arm/mach-versatile/pci.c b/arch/arm/mach-versatile/pci.c index e95bf84..2f84f40 100644 --- a/arch/arm/mach-versatile/pci.c +++ b/arch/arm/mach-versatile/pci.c @@ -169,13 +169,6 @@ static struct pci_ops pci_versatile_ops = { .write = versatile_write_config, }; -static struct resource io_port = { - .name = "PCI", - .start = 0, - .end = IO_SPACE_LIMIT, - .flags = IORESOURCE_IO, -}; - static struct resource io_mem = { .name = "PCI I/O space", .start = VERSATILE_PCI_MEM_BASE0, @@ -207,12 +200,6 @@ static int __init pci_versatile_setup_resources(struct pci_sys_data *sys) "memory region (%d)\n", ret); goto out; } - ret = request_resource(&ioport_resource, &io_port); - if (ret) { - printk(KERN_ERR "PCI: unable to allocate I/O " - "port region (%d)\n", ret); - goto out; - } ret = request_resource(&iomem_resource, &non_mem); if (ret) { printk(KERN_ERR "PCI: unable to allocate non-prefetchable " @@ -227,11 +214,9 @@ static int __init pci_versatile_setup_resources(struct pci_sys_data *sys) } /* - * the IO resource for this bus * the mem resource for this bus * the prefetch mem resource for this bus */ - pci_add_resource_offset(&sys->resources, &io_port, sys->io_offset); pci_add_resource_offset(&sys->resources, &non_mem, sys->mem_offset); pci_add_resource_offset(&sys->resources, &pre_mem, sys->mem_offset); @@ -260,9 +245,11 @@ int __init pci_versatile_setup(int nr, struct pci_sys_data *sys) goto out; } + ret = pci_ioremap_io(0, VERSATILE_PCI_MEM_BASE0); + if (ret) + goto out; + if (nr == 0) { - sys->mem_offset = 0; - sys->io_offset = 0; ret = pci_versatile_setup_resources(sys); if (ret < 0) { printk("pci_versatile_setup: resources... oops?\n"); @@ -319,7 +306,6 @@ int __init pci_versatile_setup(int nr, struct pci_sys_data *sys) void __init pci_versatile_preinit(void) { - pcibios_min_io = 0x44000000; pcibios_min_mem = 0x50000000; __raw_writel(VERSATILE_PCI_MEM_BASE0 >> 28, PCI_IMAP0); diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c index 566750f..9d869f9 100644 --- a/arch/arm/mm/ioremap.c +++ b/arch/arm/mm/ioremap.c @@ -36,6 +36,7 @@ #include <asm/system_info.h> #include <asm/mach/map.h> +#include <asm/mach/pci.h> #include "mm.h" int ioremap_page(unsigned long virt, unsigned long phys, @@ -383,3 +384,16 @@ void __arm_iounmap(volatile void __iomem *io_addr) arch_iounmap(io_addr); } EXPORT_SYMBOL(__arm_iounmap); + +#ifdef CONFIG_PCI +int pci_ioremap_io(unsigned int offset, phys_addr_t phys_addr) +{ + BUG_ON(offset + SZ_64K > IO_SPACE_LIMIT); + + return ioremap_page_range(PCI_IO_VIRT_BASE + offset, + PCI_IO_VIRT_BASE + offset + SZ_64K, + phys_addr, + __pgprot(get_mem_type(MT_DEVICE)->prot_pte)); +} +EXPORT_SYMBOL_GPL(pci_ioremap_io); +#endif diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 4c2d045..512b2c04 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -31,6 +31,7 @@ #include <asm/mach/arch.h> #include <asm/mach/map.h> +#include <asm/mach/pci.h> #include "mm.h" @@ -216,7 +217,7 @@ static struct mem_type mem_types[] = { .prot_l1 = PMD_TYPE_TABLE, .prot_sect = PROT_SECT_DEVICE | PMD_SECT_WB, .domain = DOMAIN_IO, - }, + }, [MT_DEVICE_WC] = { /* ioremap_wc */ .prot_pte = PROT_PTE_DEVICE | L_PTE_MT_DEV_WC, .prot_l1 = PMD_TYPE_TABLE, @@ -777,14 +778,27 @@ void __init iotable_init(struct map_desc *io_desc, int nr) create_mapping(md); vm->addr = (void *)(md->virtual & PAGE_MASK); vm->size = PAGE_ALIGN(md->length + (md->virtual & ~PAGE_MASK)); - vm->phys_addr = __pfn_to_phys(md->pfn); - vm->flags = VM_IOREMAP | VM_ARM_STATIC_MAPPING; + vm->phys_addr = __pfn_to_phys(md->pfn); + vm->flags = VM_IOREMAP | VM_ARM_STATIC_MAPPING; vm->flags |= VM_ARM_MTYPE(md->type); vm->caller = iotable_init; vm_area_add_early(vm++); } } +void __init vm_reserve_area_early(unsigned long addr, unsigned long size, + void *caller) +{ + struct vm_struct *vm; + + vm = early_alloc_aligned(sizeof(*vm), __alignof__(*vm)); + vm->addr = (void *)addr; + vm->size = size; + vm->flags = VM_IOREMAP | VM_ARM_STATIC_MAPPING; + vm->caller = caller; + vm_area_add_early(vm); +} + #ifndef CONFIG_ARM_LPAE /* @@ -802,14 +816,7 @@ void __init iotable_init(struct map_desc *io_desc, int nr) static void __init pmd_empty_section_gap(unsigned long addr) { - struct vm_struct *vm; - - vm = early_alloc_aligned(sizeof(*vm), __alignof__(*vm)); - vm->addr = (void *)addr; - vm->size = SECTION_SIZE; - vm->flags = VM_IOREMAP | VM_ARM_STATIC_MAPPING; - vm->caller = pmd_empty_section_gap; - vm_area_add_early(vm); + vm_reserve_area_early(addr, SECTION_SIZE, pmd_empty_section_gap); } static void __init fill_pmd_gaps(void) @@ -858,6 +865,28 @@ static void __init fill_pmd_gaps(void) #define fill_pmd_gaps() do { } while (0) #endif +#if defined(CONFIG_PCI) && !defined(CONFIG_NEED_MACH_IO_H) +static void __init pci_reserve_io(void) +{ + struct vm_struct *vm; + unsigned long addr; + + /* we're still single threaded hence no lock needed here */ + for (vm = vmlist; vm; vm = vm->next) { + if (!(vm->flags & VM_ARM_STATIC_MAPPING)) + continue; + addr = (unsigned long)vm->addr; + addr &= ~(SZ_2M - 1); + if (addr == PCI_IO_VIRT_BASE) + return; + + } + vm_reserve_area_early(PCI_IO_VIRT_BASE, SZ_2M, pci_reserve_io); +} +#else +#define pci_reserve_io() do { } while (0) +#endif + static void * __initdata vmalloc_min = (void *)(VMALLOC_END - (240 << 20) - VMALLOC_OFFSET); @@ -1141,6 +1170,9 @@ static void __init devicemaps_init(struct machine_desc *mdesc) mdesc->map_io(); fill_pmd_gaps(); + /* Reserve fixed i/o space in VMALLOC region */ + pci_reserve_io(); + /* * Finally flush the caches and tlb to ensure that we're in a * consistent state wrt the writebuffer. This also ensures that diff --git a/arch/arm/plat-iop/pci.c b/arch/arm/plat-iop/pci.c index 8daae9b..362474b 100644 --- a/arch/arm/plat-iop/pci.c +++ b/arch/arm/plat-iop/pci.c @@ -192,30 +192,24 @@ int iop3xx_pci_setup(int nr, struct pci_sys_data *sys) if (nr != 0) return 0; - res = kzalloc(2 * sizeof(struct resource), GFP_KERNEL); + res = kzalloc(sizeof(struct resource), GFP_KERNEL); if (!res) panic("PCI: unable to alloc resources"); - res[0].start = IOP3XX_PCI_LOWER_IO_PA; - res[0].end = IOP3XX_PCI_LOWER_IO_PA + IOP3XX_PCI_IO_WINDOW_SIZE - 1; - res[0].name = "IOP3XX PCI I/O Space"; - res[0].flags = IORESOURCE_IO; - request_resource(&ioport_resource, &res[0]); - - res[1].start = IOP3XX_PCI_LOWER_MEM_PA; - res[1].end = IOP3XX_PCI_LOWER_MEM_PA + IOP3XX_PCI_MEM_WINDOW_SIZE - 1; - res[1].name = "IOP3XX PCI Memory Space"; - res[1].flags = IORESOURCE_MEM; - request_resource(&iomem_resource, &res[1]); + res->start = IOP3XX_PCI_LOWER_MEM_PA; + res->end = IOP3XX_PCI_LOWER_MEM_PA + IOP3XX_PCI_MEM_WINDOW_SIZE - 1; + res->name = "IOP3XX PCI Memory Space"; + res->flags = IORESOURCE_MEM; + request_resource(&iomem_resource, res); /* * Use whatever translation is already setup. */ sys->mem_offset = IOP3XX_PCI_LOWER_MEM_PA - *IOP3XX_OMWTVR0; - sys->io_offset = IOP3XX_PCI_LOWER_IO_PA - *IOP3XX_OIOWTVR; - pci_add_resource_offset(&sys->resources, &res[0], sys->io_offset); - pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset); + pci_add_resource_offset(&sys->resources, res, sys->mem_offset); + + pci_ioremap_io(0, IOP3XX_PCI_LOWER_IO_PA); return 1; } @@ -367,7 +361,6 @@ void __init iop3xx_pci_preinit_cond(void) void __init iop3xx_pci_preinit(void) { - pcibios_min_io = 0; pcibios_min_mem = 0; iop3xx_atu_disable(); diff --git a/arch/arm/plat-iop/setup.c b/arch/arm/plat-iop/setup.c index bade586..5b217f4 100644 --- a/arch/arm/plat-iop/setup.c +++ b/arch/arm/plat-iop/setup.c @@ -25,11 +25,6 @@ static struct map_desc iop3xx_std_desc[] __initdata = { .pfn = __phys_to_pfn(IOP3XX_PERIPHERAL_PHYS_BASE), .length = IOP3XX_PERIPHERAL_SIZE, .type = MT_UNCACHED, - }, { /* PCI IO space */ - .virtual = IOP3XX_PCI_LOWER_IO_VA, - .pfn = __phys_to_pfn(IOP3XX_PCI_LOWER_IO_PA), - .length = IOP3XX_PCI_IO_WINDOW_SIZE, - .type = MT_DEVICE, }, }; |
