diff options
author | Arnd Bergmann <arnd@arndb.de> | 2018-03-07 21:21:59 +0100 |
---|---|---|
committer | Arnd Bergmann <arnd@arndb.de> | 2018-03-09 23:19:58 +0100 |
commit | fd8773f9f544955f6f47dc2ac3ab85ad64376b7f (patch) | |
tree | 2eedaf10b5a4b62df0d3b514cec9614a6af6b563 /arch/frv/mb93090-mb00 | |
parent | 739d875dd6982618020d30f58f8acf10f6076e6d (diff) | |
download | linux-stable-fd8773f9f544955f6f47dc2ac3ab85ad64376b7f.tar.gz linux-stable-fd8773f9f544955f6f47dc2ac3ab85ad64376b7f.tar.bz2 linux-stable-fd8773f9f544955f6f47dc2ac3ab85ad64376b7f.zip |
arch: remove frv port
The Fujitsu FRV kernel port has been around for a long time, but has not
seen regular updates in several years and instead was marked 'Orphaned'
in 2016 by long-time maintainer David Howells.
The SoC product line apparently is apparently still around in the form
of the Socionext Milbeaut image processor, but this one no longer uses
the FRV CPU cores.
This removes all FRV specific files from the kernel.
Link: http://www.socionext.com/en/products/assp/milbeaut/
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/frv/mb93090-mb00')
-rw-r--r-- | arch/frv/mb93090-mb00/Makefile | 16 | ||||
-rw-r--r-- | arch/frv/mb93090-mb00/flash.c | 90 | ||||
-rw-r--r-- | arch/frv/mb93090-mb00/pci-dma-nommu.c | 176 | ||||
-rw-r--r-- | arch/frv/mb93090-mb00/pci-dma.c | 118 | ||||
-rw-r--r-- | arch/frv/mb93090-mb00/pci-frv.c | 193 | ||||
-rw-r--r-- | arch/frv/mb93090-mb00/pci-frv.h | 33 | ||||
-rw-r--r-- | arch/frv/mb93090-mb00/pci-irq.c | 62 | ||||
-rw-r--r-- | arch/frv/mb93090-mb00/pci-vdk.c | 419 |
8 files changed, 0 insertions, 1107 deletions
diff --git a/arch/frv/mb93090-mb00/Makefile b/arch/frv/mb93090-mb00/Makefile deleted file mode 100644 index bcb03ebb3583..000000000000 --- a/arch/frv/mb93090-mb00/Makefile +++ /dev/null @@ -1,16 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -# -# Makefile for the MB93090-MB00 motherboard stuff -# - -ifeq "$(CONFIG_PCI)" "y" -obj-y := pci-frv.o pci-irq.o pci-vdk.o - -ifeq "$(CONFIG_MMU)" "y" -obj-y += pci-dma.o -else -obj-y += pci-dma-nommu.o -endif -endif - -obj-$(CONFIG_MTD) += flash.o diff --git a/arch/frv/mb93090-mb00/flash.c b/arch/frv/mb93090-mb00/flash.c deleted file mode 100644 index e1cf802d1639..000000000000 --- a/arch/frv/mb93090-mb00/flash.c +++ /dev/null @@ -1,90 +0,0 @@ -/* Flash mappings for the MB93090-MB00 motherboard - * - * Copyright (C) 2009 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/mtd/partitions.h> -#include <linux/mtd/physmap.h> - -#define MB93090_BOOTROM_ADDR 0xFF000000 /* Boot ROM */ -#define MB93090_BOOTROM_SIZE (2 * 1024 * 1024) -#define MB93090_USERROM_ADDR 0xFF200000 /* User ROM */ -#define MB93090_USERROM_SIZE (2 * 1024 * 1024) - -/* - * default MTD partition table for both main flash devices, expected to be - * overridden by RedBoot - */ -static struct mtd_partition mb93090_partitions[] = { - { - .name = "Filesystem", - .size = MTDPART_SIZ_FULL, - .offset = 0, - } -}; - -/* - * Definition of the MB93090 Boot ROM (on the CPU card) - */ -static struct physmap_flash_data mb93090_bootrom_data = { - .width = 2, - .nr_parts = 2, - .parts = mb93090_partitions, -}; - -static struct resource mb93090_bootrom_resource = { - .start = MB93090_BOOTROM_ADDR, - .end = MB93090_BOOTROM_ADDR + MB93090_BOOTROM_SIZE - 1, - .flags = IORESOURCE_MEM, -}; - -static struct platform_device mb93090_bootrom = { - .name = "physmap-flash", - .id = 0, - .dev.platform_data = &mb93090_bootrom_data, - .num_resources = 1, - .resource = &mb93090_bootrom_resource, -}; - -/* - * Definition of the MB93090 User ROM definition (on the motherboard) - */ -static struct physmap_flash_data mb93090_userrom_data = { - .width = 2, - .nr_parts = 2, - .parts = mb93090_partitions, -}; - -static struct resource mb93090_userrom_resource = { - .start = MB93090_USERROM_ADDR, - .end = MB93090_USERROM_ADDR + MB93090_USERROM_SIZE - 1, - .flags = IORESOURCE_MEM, -}; - -static struct platform_device mb93090_userrom = { - .name = "physmap-flash", - .id = 1, - .dev.platform_data = &mb93090_userrom_data, - .num_resources = 1, - .resource = &mb93090_userrom_resource, -}; - -/* - * register the MB93090 flashes - */ -static int __init mb93090_mtd_init(void) -{ - platform_device_register(&mb93090_bootrom); - platform_device_register(&mb93090_userrom); - return 0; -} - -module_init(mb93090_mtd_init); diff --git a/arch/frv/mb93090-mb00/pci-dma-nommu.c b/arch/frv/mb93090-mb00/pci-dma-nommu.c deleted file mode 100644 index 4a96de7f0af4..000000000000 --- a/arch/frv/mb93090-mb00/pci-dma-nommu.c +++ /dev/null @@ -1,176 +0,0 @@ -/* pci-dma-nommu.c: Dynamic DMA mapping support for the FRV - * - * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. - * Written by David Woodhouse (dwmw2@infradead.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. - */ - -#include <linux/types.h> -#include <linux/slab.h> -#include <linux/export.h> -#include <linux/dma-mapping.h> -#include <linux/list.h> -#include <linux/pci.h> -#include <asm/io.h> - -#if 1 -#define DMA_SRAM_START dma_coherent_mem_start -#define DMA_SRAM_END dma_coherent_mem_end -#else // Use video RAM on Matrox -#define DMA_SRAM_START 0xe8900000 -#define DMA_SRAM_END 0xe8a00000 -#endif - -struct dma_alloc_record { - struct list_head list; - unsigned long ofs; - unsigned long len; -}; - -static DEFINE_SPINLOCK(dma_alloc_lock); -static LIST_HEAD(dma_alloc_list); - -static void *frv_dma_alloc(struct device *hwdev, size_t size, dma_addr_t *dma_handle, - gfp_t gfp, unsigned long attrs) -{ - struct dma_alloc_record *new; - struct list_head *this = &dma_alloc_list; - unsigned long flags; - unsigned long start = DMA_SRAM_START; - unsigned long end; - - if (!DMA_SRAM_START) { - printk("%s called without any DMA area reserved!\n", __func__); - return NULL; - } - - new = kmalloc(sizeof (*new), GFP_ATOMIC); - if (!new) - return NULL; - - /* Round up to a reasonable alignment */ - new->len = (size + 31) & ~31; - - spin_lock_irqsave(&dma_alloc_lock, flags); - - list_for_each (this, &dma_alloc_list) { - struct dma_alloc_record *this_r = list_entry(this, struct dma_alloc_record, list); - end = this_r->ofs; - - if (end - start >= size) - goto gotone; - - start = this_r->ofs + this_r->len; - } - /* Reached end of list. */ - end = DMA_SRAM_END; - this = &dma_alloc_list; - - if (end - start >= size) { - gotone: - new->ofs = start; - list_add_tail(&new->list, this); - spin_unlock_irqrestore(&dma_alloc_lock, flags); - - *dma_handle = start; - return (void *)start; - } - - kfree(new); - spin_unlock_irqrestore(&dma_alloc_lock, flags); - return NULL; -} - -static void frv_dma_free(struct device *hwdev, size_t size, void *vaddr, - dma_addr_t dma_handle, unsigned long attrs) -{ - struct dma_alloc_record *rec; - unsigned long flags; - - spin_lock_irqsave(&dma_alloc_lock, flags); - - list_for_each_entry(rec, &dma_alloc_list, list) { - if (rec->ofs == dma_handle) { - list_del(&rec->list); - kfree(rec); - spin_unlock_irqrestore(&dma_alloc_lock, flags); - return; - } - } - spin_unlock_irqrestore(&dma_alloc_lock, flags); - BUG(); -} - -static int frv_dma_map_sg(struct device *dev, struct scatterlist *sglist, - int nents, enum dma_data_direction direction, - unsigned long attrs) -{ - struct scatterlist *sg; - int i; - - BUG_ON(direction == DMA_NONE); - - if (attrs & DMA_ATTR_SKIP_CPU_SYNC) - return nents; - - for_each_sg(sglist, sg, nents, i) { - frv_cache_wback_inv(sg_dma_address(sg), - sg_dma_address(sg) + sg_dma_len(sg)); - } - - return nents; -} - -static dma_addr_t frv_dma_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction direction, unsigned long attrs) -{ - BUG_ON(direction == DMA_NONE); - - if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC)) - flush_dcache_page(page); - - return (dma_addr_t) page_to_phys(page) + offset; -} - -static void frv_dma_sync_single_for_device(struct device *dev, - dma_addr_t dma_handle, size_t size, - enum dma_data_direction direction) -{ - flush_write_buffers(); -} - -static void frv_dma_sync_sg_for_device(struct device *dev, - struct scatterlist *sg, int nelems, - enum dma_data_direction direction) -{ - flush_write_buffers(); -} - - -static int frv_dma_supported(struct device *dev, u64 mask) -{ - /* - * we fall back to GFP_DMA when the mask isn't all 1s, - * so we can't guarantee allocations that must be - * within a tighter range than GFP_DMA.. - */ - if (mask < 0x00ffffff) - return 0; - return 1; -} - -const struct dma_map_ops frv_dma_ops = { - .alloc = frv_dma_alloc, - .free = frv_dma_free, - .map_page = frv_dma_map_page, - .map_sg = frv_dma_map_sg, - .sync_single_for_device = frv_dma_sync_single_for_device, - .sync_sg_for_device = frv_dma_sync_sg_for_device, - .dma_supported = frv_dma_supported, -}; -EXPORT_SYMBOL(frv_dma_ops); diff --git a/arch/frv/mb93090-mb00/pci-dma.c b/arch/frv/mb93090-mb00/pci-dma.c deleted file mode 100644 index e7130abc0dae..000000000000 --- a/arch/frv/mb93090-mb00/pci-dma.c +++ /dev/null @@ -1,118 +0,0 @@ -/* pci-dma.c: Dynamic DMA mapping support for the FRV CPUs that have MMUs - * - * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * 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. - */ - -#include <linux/types.h> -#include <linux/dma-mapping.h> -#include <linux/list.h> -#include <linux/pci.h> -#include <linux/export.h> -#include <linux/highmem.h> -#include <linux/scatterlist.h> -#include <asm/io.h> - -static void *frv_dma_alloc(struct device *hwdev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs) -{ - void *ret; - - ret = consistent_alloc(gfp, size, dma_handle); - if (ret) - memset(ret, 0, size); - - return ret; -} - -static void frv_dma_free(struct device *hwdev, size_t size, void *vaddr, - dma_addr_t dma_handle, unsigned long attrs) -{ - consistent_free(vaddr); -} - -static int frv_dma_map_sg(struct device *dev, struct scatterlist *sglist, - int nents, enum dma_data_direction direction, - unsigned long attrs) -{ - struct scatterlist *sg; - unsigned long dampr2; - void *vaddr; - int i; - - BUG_ON(direction == DMA_NONE); - - if (attrs & DMA_ATTR_SKIP_CPU_SYNC) - return nents; - - dampr2 = __get_DAMPR(2); - - for_each_sg(sglist, sg, nents, i) { - vaddr = kmap_atomic_primary(sg_page(sg)); - - frv_dcache_writeback((unsigned long) vaddr, - (unsigned long) vaddr + PAGE_SIZE); - - } - - kunmap_atomic_primary(vaddr); - if (dampr2) { - __set_DAMPR(2, dampr2); - __set_IAMPR(2, dampr2); - } - - return nents; -} - -static dma_addr_t frv_dma_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction direction, unsigned long attrs) -{ - if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC)) - flush_dcache_page(page); - - return (dma_addr_t) page_to_phys(page) + offset; -} - -static void frv_dma_sync_single_for_device(struct device *dev, - dma_addr_t dma_handle, size_t size, - enum dma_data_direction direction) -{ - flush_write_buffers(); -} - -static void frv_dma_sync_sg_for_device(struct device *dev, - struct scatterlist *sg, int nelems, - enum dma_data_direction direction) -{ - flush_write_buffers(); -} - - -static int frv_dma_supported(struct device *dev, u64 mask) -{ - /* - * we fall back to GFP_DMA when the mask isn't all 1s, - * so we can't guarantee allocations that must be - * within a tighter range than GFP_DMA.. - */ - if (mask < 0x00ffffff) - return 0; - return 1; -} - -const struct dma_map_ops frv_dma_ops = { - .alloc = frv_dma_alloc, - .free = frv_dma_free, - .map_page = frv_dma_map_page, - .map_sg = frv_dma_map_sg, - .sync_single_for_device = frv_dma_sync_single_for_device, - .sync_sg_for_device = frv_dma_sync_sg_for_device, - .dma_supported = frv_dma_supported, -}; -EXPORT_SYMBOL(frv_dma_ops); diff --git a/arch/frv/mb93090-mb00/pci-frv.c b/arch/frv/mb93090-mb00/pci-frv.c deleted file mode 100644 index c452ddb5620f..000000000000 --- a/arch/frv/mb93090-mb00/pci-frv.c +++ /dev/null @@ -1,193 +0,0 @@ -/* pci-frv.c: low-level PCI access routines - * - * Copyright (C) 2003-5 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - Derived from the i386 equivalent stuff - * - * 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. - */ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/ioport.h> -#include <linux/errno.h> - -#include "pci-frv.h" - -/* - * We need to avoid collisions with `mirrored' VGA ports - * and other strange ISA hardware, so we always want the - * addresses to be allocated in the 0x000-0x0ff region - * modulo 0x400. - * - * Why? Because some silly external IO cards only decode - * the low 10 bits of the IO address. The 0x00-0xff region - * is reserved for motherboard devices that decode all 16 - * bits, so it's ok to allocate at, say, 0x2800-0x28ff, - * but we want to try to avoid allocating at 0x2900-0x2bff - * which might have be mirrored at 0x0100-0x03ff.. - */ -resource_size_t -pcibios_align_resource(void *data, const struct resource *res, - resource_size_t size, resource_size_t align) -{ - resource_size_t start = res->start; - - if ((res->flags & IORESOURCE_IO) && (start & 0x300)) - start = (start + 0x3ff) & ~0x3ff; - - return start; -} - - -/* - * Handle resources of PCI devices. If the world were perfect, we could - * just allocate all the resource regions and do nothing more. It isn't. - * On the other hand, we cannot just re-allocate all devices, as it would - * require us to know lots of host bridge internals. So we attempt to - * keep as much of the original configuration as possible, but tweak it - * when it's found to be wrong. - * - * Known BIOS problems we have to work around: - * - I/O or memory regions not configured - * - regions configured, but not enabled in the command register - * - bogus I/O addresses above 64K used - * - expansion ROMs left enabled (this may sound harmless, but given - * the fact the PCI specs explicitly allow address decoders to be - * shared between expansion ROMs and other resource regions, it's - * at least dangerous) - * - * Our solution: - * (1) Allocate resources for all buses behind PCI-to-PCI bridges. - * This gives us fixed barriers on where we can allocate. - * (2) Allocate resources for all enabled devices. If there is - * a collision, just mark the resource as unallocated. Also - * disable expansion ROMs during this step. - * (3) Try to allocate resources for disabled devices. If the - * resources were assigned correctly, everything goes well, - * if they weren't, they won't disturb allocation of other - * resources. - * (4) Assign new addresses to resources which were either - * not configured at all or misconfigured. If explicitly - * requested by the user, configure expansion ROM address - * as well. - */ - -static void __init pcibios_allocate_bus_resources(struct list_head *bus_list) -{ - struct list_head *ln; - struct pci_bus *bus; - struct pci_dev *dev; - int idx; - struct resource *r; - - /* Depth-First Search on bus tree */ - for (ln=bus_list->next; ln != bus_list; ln=ln->next) { - bus = list_entry(ln, struct pci_bus, node); - if ((dev = bus->self)) { - for (idx = PCI_BRIDGE_RESOURCES; idx < PCI_NUM_RESOURCES; idx++) { - r = &dev->resource[idx]; - if (!r->start) - continue; - pci_claim_bridge_resource(dev, idx); - } - } - pcibios_allocate_bus_resources(&bus->children); - } -} - -static void __init pcibios_allocate_resources(int pass) -{ - struct pci_dev *dev = NULL; - int idx, disabled; - u16 command; - struct resource *r; - - for_each_pci_dev(dev) { - pci_read_config_word(dev, PCI_COMMAND, &command); - for(idx = 0; idx < 6; idx++) { - r = &dev->resource[idx]; - if (r->parent) /* Already allocated */ - continue; - if (!r->start) /* Address not assigned at all */ - continue; - if (r->flags & IORESOURCE_IO) - disabled = !(command & PCI_COMMAND_IO); - else - disabled = !(command & PCI_COMMAND_MEMORY); - if (pass == disabled) { - DBG("PCI: Resource %08lx-%08lx (f=%lx, d=%d, p=%d)\n", - r->start, r->end, r->flags, disabled, pass); - if (pci_claim_resource(dev, idx) < 0) { - /* We'll assign a new address later */ - r->end -= r->start; - r->start = 0; - } - } - } - if (!pass) { - r = &dev->resource[PCI_ROM_RESOURCE]; - if (r->flags & IORESOURCE_ROM_ENABLE) { - /* Turn the ROM off, leave the resource region, but keep it unregistered. */ - u32 reg; - DBG("PCI: Switching off ROM of %s\n", pci_name(dev)); - r->flags &= ~IORESOURCE_ROM_ENABLE; - pci_read_config_dword(dev, dev->rom_base_reg, ®); - pci_write_config_dword(dev, dev->rom_base_reg, reg & ~PCI_ROM_ADDRESS_ENABLE); - } - } - } -} - -static void __init pcibios_assign_resources(void) -{ - struct pci_dev *dev = NULL; - int idx, err; - struct resource *r; - - for_each_pci_dev(dev) { - int class = dev->class >> 8; - - /* Don't touch classless devices and host bridges */ - if (!class || class == PCI_CLASS_BRIDGE_HOST) - continue; - - for(idx=0; idx<6; idx++) { - r = &dev->resource[idx]; - - /* - * Don't touch IDE controllers and I/O ports of video cards! - */ - if ((class == PCI_CLASS_STORAGE_IDE && idx < 4) || - (class == PCI_CLASS_DISPLAY_VGA && (r->flags & IORESOURCE_IO))) - continue; - - /* - * We shall assign a new address to this resource, either because - * the BIOS forgot to do so or because we have decided the old - * address was unusable for some reason. - */ - if (!r->start && r->end) { - err = pci_assign_resource(dev, idx); - if (err) - dev_err(&dev->dev, - "Failed to assign new address to %d\n", - idx); - } - } - } -} - -void __init pcibios_resource_survey(void) -{ - DBG("PCI: Allocating resources\n"); - pcibios_allocate_bus_resources(&pci_root_buses); - pcibios_allocate_resources(0); - pcibios_allocate_resources(1); - pcibios_assign_resources(); -} diff --git a/arch/frv/mb93090-mb00/pci-frv.h b/arch/frv/mb93090-mb00/pci-frv.h deleted file mode 100644 index 41fbb6bae558..000000000000 --- a/arch/frv/mb93090-mb00/pci-frv.h +++ /dev/null @@ -1,33 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Low-Level PCI Access for FRV machines. - * - * (c) 1999 Martin Mares <mj@ucw.cz> - */ - -#include <asm/sections.h> - -#undef DEBUG - -#ifdef DEBUG -#define DBG(x...) printk(x) -#else -#define DBG(x...) -#endif - -extern unsigned int __nongpreldata pci_probe; - -/* pci-frv.c */ - -void pcibios_resource_survey(void); - -/* pci-vdk.c */ - -extern struct pci_ops *__nongpreldata pci_root_ops; - -/* pci-irq.c */ -extern unsigned int pcibios_irq_mask; - -void pcibios_irq_init(void); -void pcibios_fixup_irqs(void); -void pcibios_enable_irq(struct pci_dev *dev); diff --git a/arch/frv/mb93090-mb00/pci-irq.c b/arch/frv/mb93090-mb00/pci-irq.c deleted file mode 100644 index a40aa8663056..000000000000 --- a/arch/frv/mb93090-mb00/pci-irq.c +++ /dev/null @@ -1,62 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* pci-irq.c: PCI IRQ routing on the FRV motherboard - * - * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * derived from: arch/i386/kernel/pci-irq.c: (c) 1999--2000 Martin Mares <mj@suse.cz> - */ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/irq.h> - -#include <asm/io.h> -#include <asm/smp.h> - -#include "pci-frv.h" - -/* - * DEVICE DEVNO INT#A INT#B INT#C INT#D - * ======= ======= ======= ======= ======= ======= - * MB86943 0 fpga.10 - - - - * RTL8029 16 fpga.12 - - - - * SLOT 1 19 fpga.6 fpga.5 fpga.4 fpga.3 - * SLOT 2 18 fpga.5 fpga.4 fpga.3 fpga.6 - * SLOT 3 17 fpga.4 fpga.3 fpga.6 fpga.5 - * - */ - -static const uint8_t __initconst pci_bus0_irq_routing[32][4] = { - [0 ] = { IRQ_FPGA_MB86943_PCI_INTA }, - [16] = { IRQ_FPGA_RTL8029_INTA }, - [17] = { IRQ_FPGA_PCI_INTC, IRQ_FPGA_PCI_INTD, IRQ_FPGA_PCI_INTA, IRQ_FPGA_PCI_INTB }, - [18] = { IRQ_FPGA_PCI_INTB, IRQ_FPGA_PCI_INTC, IRQ_FPGA_PCI_INTD, IRQ_FPGA_PCI_INTA }, - [19] = { IRQ_FPGA_PCI_INTA, IRQ_FPGA_PCI_INTB, IRQ_FPGA_PCI_INTC, IRQ_FPGA_PCI_INTD }, -}; - -void __init pcibios_irq_init(void) -{ -} - -void __init pcibios_fixup_irqs(void) -{ - struct pci_dev *dev = NULL; - uint8_t line, pin; - - for_each_pci_dev(dev) { - pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin); - if (pin) { - dev->irq = pci_bus0_irq_routing[PCI_SLOT(dev->devfn)][pin - 1]; - pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq); - } - pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &line); - } -} - -void pcibios_enable_irq(struct pci_dev *dev) -{ - pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq); -} diff --git a/arch/frv/mb93090-mb00/pci-vdk.c b/arch/frv/mb93090-mb00/pci-vdk.c deleted file mode 100644 index f211839e2cae..000000000000 --- a/arch/frv/mb93090-mb00/pci-vdk.c +++ /dev/null @@ -1,419 +0,0 @@ -/* pci-vdk.c: MB93090-MB00 (VDK) PCI support - * - * Copyright (C) 2003, 2004 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * 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. - */ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/ioport.h> -#include <linux/delay.h> - -#include <asm/segment.h> -#include <asm/io.h> -#include <asm/mb-regs.h> -#include <asm/mb86943a.h> -#include "pci-frv.h" - -unsigned int __nongpreldata pci_probe = 1; - -struct pci_ops *__nongpreldata pci_root_ops; - -/* - * The accessible PCI window does not cover the entire CPU address space, but - * there are devices we want to access outside of that window, so we need to - * insert specific PCI bus resources instead of using the platform-level bus - * resources directly for the PCI root bus. - * - * These are configured and inserted by pcibios_init() and are attached to the - * root bus by pcibios_fixup_bus(). - */ -static struct resource pci_ioport_resource = { - .name = "PCI IO", - .start = 0, - .end = IO_SPACE_LIMIT, - .flags = IORESOURCE_IO, -}; - -static struct resource pci_iomem_resource = { - .name = "PCI mem", - .start = 0, - .end = -1, - .flags = IORESOURCE_MEM, -}; - -/* - * Functions for accessing PCI configuration space - */ - -#define CONFIG_CMD(bus, dev, where) \ - (0x80000000 | (bus->number << 16) | (devfn << 8) | (where & ~3)) - -#define __set_PciCfgAddr(A) writel((A), (volatile void __iomem *) __region_CS1 + 0x80) - -#define __get_PciCfgDataB(A) readb((volatile void __iomem *) __region_CS1 + 0x88 + ((A) & 3)) -#define __get_PciCfgDataW(A) readw((volatile void __iomem *) __region_CS1 + 0x88 + ((A) & 2)) -#define __get_PciCfgDataL(A) readl((volatile void __iomem *) __region_CS1 + 0x88) - -#define __set_PciCfgDataB(A,V) \ - writeb((V), (volatile void __iomem *) __region_CS1 + 0x88 + (3 - ((A) & 3))) - -#define __set_PciCfgDataW(A,V) \ - writew((V), (volatile void __iomem *) __region_CS1 + 0x88 + (2 - ((A) & 2))) - -#define __set_PciCfgDataL(A,V) \ - writel((V), (volatile void __iomem *) __region_CS1 + 0x88) - -#define __get_PciBridgeDataB(A) readb((volatile void __iomem *) __region_CS1 + 0x800 + (A)) -#define __get_PciBridgeDataW(A) readw((volatile void __iomem *) __region_CS1 + 0x800 + (A)) -#define __get_PciBridgeDataL(A) readl((volatile void __iomem *) __region_CS1 + 0x800 + (A)) - -#define __set_PciBridgeDataB(A,V) writeb((V), (volatile void __iomem *) __region_CS1 + 0x800 + (A)) -#define __set_PciBridgeDataW(A,V) writew((V), (volatile void __iomem *) __region_CS1 + 0x800 + (A)) -#define __set_PciBridgeDataL(A,V) writel((V), (volatile void __iomem *) __region_CS1 + 0x800 + (A)) - -static inline int __query(const struct pci_dev *dev) -{ -// return dev->bus->number==0 && (dev->devfn==PCI_DEVFN(0,0)); -// return dev->bus->number==1; -// return dev->bus->number==0 && -// (dev->devfn==PCI_DEVFN(2,0) || dev->devfn==PCI_DEVFN(3,0)); - return 0; -} - -/*****************************************************************************/ -/* - * - */ -static int pci_frv_read_config(struct pci_bus *bus, unsigned int devfn, int where, int size, - u32 *val) -{ - u32 _value; - - if (bus->number == 0 && devfn == PCI_DEVFN(0, 0)) { - _value = __get_PciBridgeDataL(where & ~3); - } - else { - __set_PciCfgAddr(CONFIG_CMD(bus, devfn, where)); - _value = __get_PciCfgDataL(where & ~3); - } - - switch (size) { - case 1: - _value = _value >> ((where & 3) * 8); - break; - - case 2: - _value = _value >> ((where & 2) * 8); - break; - - case 4: - break; - - default: - BUG(); - } - - *val = _value; - return PCIBIOS_SUCCESSFUL; -} - -static int pci_frv_write_config(struct pci_bus *bus, unsigned int devfn, int where, int size, - u32 value) -{ - switch (size) { - case 1: - if (bus->number == 0 && devfn == PCI_DEVFN(0, 0)) { - __set_PciBridgeDataB(where, value); - } - else { - __set_PciCfgAddr(CONFIG_CMD(bus, devfn, where)); - __set_PciCfgDataB(where, value); - } - break; - - case 2: - if (bus->number == 0 && devfn == PCI_DEVFN(0, 0)) { - __set_PciBridgeDataW(where, value); - } - else { - __set_PciCfgAddr(CONFIG_CMD(bus, devfn, where)); - __set_PciCfgDataW(where, value); - } - break; - - case 4: - if (bus->number == 0 && devfn == PCI_DEVFN(0, 0)) { - __set_PciBridgeDataL(where, value); - } - else { - __set_PciCfgAddr(CONFIG_CMD(bus, devfn, where)); - __set_PciCfgDataL(where, value); - } - break; - - default: - BUG(); - } - - return PCIBIOS_SUCCESSFUL; -} - -static struct pci_ops pci_direct_frv = { - .read = pci_frv_read_config, - .write = pci_frv_write_config, -}; - -/* - * Before we decide to use direct hardware access mechanisms, we try to do some - * trivial checks to ensure it at least _seems_ to be working -- we just test - * whether bus 00 contains a host bridge (this is similar to checking - * techniques used in XFree86, but ours should be more reliable since we - * attempt to make use of direct access hints provided by the PCI BIOS). - * - * This should be close to trivial, but it isn't, because there are buggy - * chipsets (yes, you guessed it, by Intel and Compaq) that have no class ID. - */ -static int __init pci_sanity_check(struct pci_ops *o) -{ - struct pci_bus bus; /* Fake bus and device */ - u32 id; - - bus.number = 0; - - if (o->read(&bus, 0, PCI_VENDOR_ID, 4, &id) == PCIBIOS_SUCCESSFUL) { - printk("PCI: VDK Bridge device:vendor: %08x\n", id); - if (id == 0x200e10cf) - return 1; - } - - printk("PCI: VDK Bridge: Sanity check failed\n"); - return 0; -} - -static struct pci_ops * __init pci_check_direct(void) -{ - unsigned long flags; - - local_irq_save(flags); - - /* check if access works */ - if (pci_sanity_check(&pci_direct_frv)) { - local_irq_restore(flags); - printk("PCI: Using configuration frv\n"); -// request_mem_region(0xBE040000, 256, "FRV bridge"); -// request_mem_region(0xBFFFFFF4, 12, "PCI frv"); - return &pci_direct_frv; - } - - local_irq_restore(flags); - return NULL; -} - -/* - * Exceptions for specific devices. Usually work-arounds for fatal design flaws. - */ - -static void __init pci_fixup_umc_ide(struct pci_dev *d) -{ - /* - * UM8886BF IDE controller sets region type bits incorrectly, - * therefore they look like memory despite of them being I/O. - */ - int i; - - printk("PCI: Fixing base address flags for device %s\n", pci_name(d)); - for(i=0; i<4; i++) - d->resource[i].flags |= PCI_BASE_ADDRESS_SPACE_IO; -} - -static void pci_fixup_ide_bases(struct pci_dev *d) -{ - int i; - - /* - * PCI IDE controllers use non-standard I/O port decoding, respect it. - */ - if ((d->class >> 8) != PCI_CLASS_STORAGE_IDE) - return; - printk("PCI: IDE base address fixup for %s\n", pci_name(d)); - for(i=0; i<4; i++) { - struct resource *r = &d->resource[i]; - if ((r->start & ~0x80) == 0x374) { - r->start |= 2; - r->end = r->start; - } - } -} - -static void pci_fixup_ide_trash(struct pci_dev *d) -{ - int i; - - /* - * There exist PCI IDE controllers which have utter garbage - * in first four base registers. Ignore that. - */ - printk("PCI: IDE base address trash cleared for %s\n", pci_name(d)); - for(i=0; i<4; i++) - d->resource[i].start = d->resource[i].end = d->resource[i].flags = 0; -} - -static void pci_fixup_latency(struct pci_dev *d) -{ - /* - * SiS 5597 and 5598 chipsets require latency timer set to - * at most 32 to avoid lockups. - */ - DBG("PCI: Setting max latency to 32\n"); - pcibios_max_latency = 32; -} - -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8886BF, pci_fixup_umc_ide); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5513, pci_fixup_ide_trash); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, pci_fixup_latency); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5598, pci_fixup_latency); -DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_ide_bases); - -/* - * Called after each bus is probed, but before its children - * are examined. - */ - -void pcibios_fixup_bus(struct pci_bus *bus) -{ -#if 0 - printk("### PCIBIOS_FIXUP_BUS(%d)\n",bus->number); -#endif - - pci_read_bridge_bases(bus); - - if (bus->number == 0) { - struct pci_dev *dev; - list_for_each_entry(dev, &bus->devices, bus_list) { - if (dev->devfn == 0) { - dev->resource[0].start = 0; - dev->resource[0].end = 0; - } - } - } -} - -/* - * Initialization. Try all known PCI access methods. Note that we support - * using both PCI BIOS and direct access: in such cases, we use I/O ports - * to access config space, but we still keep BIOS order of cards to be - * compatible with 2.0.X. This should go away some day. - */ - -int __init pcibios_init(void) -{ - struct pci_bus *bus; - struct pci_ops *dir = NULL; - LIST_HEAD(resources); - - if (!mb93090_mb00_detected) - return -ENXIO; - - __reg_MB86943_sl_ctl |= MB86943_SL_CTL_DRCT_MASTER_SWAP | MB86943_SL_CTL_DRCT_SLAVE_SWAP; - - __reg_MB86943_ecs_base(1) = ((__region_CS2 + 0x01000000) >> 9) | 0x08000000; - __reg_MB86943_ecs_base(2) = ((__region_CS2 + 0x00000000) >> 9) | 0x08000000; - - *(volatile uint32_t *) (__region_CS1 + 0x848) = 0xe0000000; - *(volatile uint32_t *) (__region_CS1 + 0x8b8) = 0x00000000; - - __reg_MB86943_sl_pci_io_base = (__region_CS2 + 0x04000000) >> 9; - __reg_MB86943_sl_pci_mem_base = (__region_CS2 + 0x08000000) >> 9; - __reg_MB86943_pci_sl_io_base = __region_CS2 + 0x04000000; - __reg_MB86943_pci_sl_mem_base = __region_CS2 + 0x08000000; - mb(); - - /* enable PCI arbitration */ - __reg_MB86943_pci_arbiter = MB86943_PCIARB_EN; - - pci_ioport_resource.start = (__reg_MB86943_sl_pci_io_base << 9) & 0xfffffc00; - pci_ioport_resource.end = (__reg_MB86943_sl_pci_io_range << 9) | 0x3ff; - pci_ioport_resource.end += pci_ioport_resource.start; - - printk("PCI IO window: %08llx-%08llx\n", - (unsigned long long) pci_ioport_resource.start, - (unsigned long long) pci_ioport_resource.end); - - pci_iomem_resource.start = (__reg_MB86943_sl_pci_mem_base << 9) & 0xfffffc00; - pci_iomem_resource.end = (__reg_MB86943_sl_pci_mem_range << 9) | 0x3ff; - pci_iomem_resource.end += pci_iomem_resource.start; - - /* Reserve somewhere to write to flush posted writes. This is used by - * __flush_PCI_writes() from asm/io.h to force the write FIFO in the - * CPU-PCI bridge to flush as this doesn't happen automatically when a - * read is performed on the MB93090 development kit motherboard. - */ - pci_iomem_resource.start += 0x400; - - printk("PCI MEM window: %08llx-%08llx\n", - (unsigned long long) pci_iomem_resource.start, - (unsigned long long) pci_iomem_resource.end); - printk("PCI DMA memory: %08lx-%08lx\n", - dma_coherent_mem_start, dma_coherent_mem_end); - - if (insert_resource(&iomem_resource, &pci_iomem_resource) < 0) - panic("Unable to insert PCI IOMEM resource\n"); - if (insert_resource(&ioport_resource, &pci_ioport_resource) < 0) - panic("Unable to insert PCI IOPORT resource\n"); - - if (!pci_probe) - return -ENXIO; - - dir = pci_check_direct(); - if (dir) - pci_root_ops = dir; - else { - printk("PCI: No PCI bus detected\n"); - return -ENXIO; - } - - printk("PCI: Probing PCI hardware\n"); - pci_add_resource(&resources, &pci_ioport_resource); - pci_add_resource(&resources, &pci_iomem_resource); - bus = pci_scan_root_bus(NULL, 0, pci_root_ops, NULL, &resources); - - pcibios_irq_init(); - pcibios_fixup_irqs(); - pcibios_resource_survey(); - if (!bus) - return 0; - - pci_bus_add_devices(bus); - return 0; -} - -arch_initcall(pcibios_init); - -char * __init pcibios_setup(char *str) -{ - if (!strcmp(str, "off")) { - pci_probe = 0; - return NULL; - } - return str; -} - -int pcibios_enable_device(struct pci_dev *dev, int mask) -{ - int err; - - if ((err = pci_enable_resources(dev, mask)) < 0) - return err; - if (!dev->msi_enabled) - pcibios_enable_irq(dev); - return 0; -} |